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Olga L, McKenzie K, Kerac M, Boyne M, Badaloo A, Bandsma RHJ, Koulman A, Thompson DS. Weight gain during nutritional rehabilitation post-childhood malnutrition may influence the associations between adulthood desaturases activity and anthro-cardiometabolic risk factors. Clin Nutr 2024; 43:747-755. [PMID: 38330703 DOI: 10.1016/j.clnu.2024.01.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 01/09/2024] [Accepted: 01/30/2024] [Indexed: 02/10/2024]
Abstract
BACKGROUNDS & AIMS Childhood malnutrition is a major global health problem with long-term sequelae, including non-communicable diseases (NCDs). Mechanisms are unknown but may involve metabolic programming, resulting from "short-term" solutions to optimise survival by compromising non-priority organs. As key players in lipid metabolism, desaturases have been shown to be predictive of NCDs. We hypothesised that the association between specific desaturase activities and NCD risk determinants (including body composition, serum glucose, insulin levels, and blood pressure) are influenced by childhood post-malnutrition weight gain. METHODS 278 Afro-Caribbean adults with well-documented clinical history of severe malnutrition in childhood were studied. Extensive metabolic analyses including body composition (DXA), fasting serum glucose and lipidomics (n = 101), and fasting serum insulin (n = 83) were performed in malnutrition survivors and matched community controls (n = 90). Established lipid ratios were used as proxies of desaturase activities: CE 16:1/CE 16:0 for stearoyl-CoA desaturase (SCD1), LysoPC 20:4/20:3 for fatty acid desaturase 1 (FADS1), and LysoPC 20:3/18:2 for FADS2. RESULTS Compared to community controls, adult malnutrition survivors (mean ± SD) age 28.3 ± 7.8 and BMI 23.6 ± 5.2 had higher SCD1 and FADS1 activity, (B ± SE) 0.07 ± 0.02 and 0.7 ± 0.08, respectively, but lower FADS2 activities (B ± SE) -0.05 ± 0.01, adjusted for sex and age (p < 0.0005). SCD1 was positively associated with adult BMI and body fat percentage, and negatively associated with lean mass and height. Stratification based on weight gain during nutritional rehabilitation among malnutrition survivors might signal the potential associations between weight gain during that critical period, desaturase activities, and some of adult metabolic parameters, with the lowest tertiles (slowest catch-up weight gain) performing more similarly to controls. CONCLUSIONS In adult survivors of early-life severe acute malnutrition, desaturase activity is associated with markers of NCD risk, especially adiposity. These associations seem to be strengthened by faster weight gain during nutritional rehabilitation.
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Affiliation(s)
- Laurentya Olga
- MRC Epidemiology Unit, Wellcome Trust-MRC Institute of Metabolic Science, NIHR Cambridge Comprehensive Biomedical Research Centre, Cambridge Biomedical Campus, University of Cambridge, Cambridge, UK.
| | - Kimberley McKenzie
- Caribbean Institute for Health Research, The University of the West Indies, Kingston, Jamaica
| | - Marko Kerac
- Department of Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Michael Boyne
- Department of Medicine, The University of the West Indies, Kingston, Jamaica
| | - Asha Badaloo
- Caribbean Institute for Health Research, The University of the West Indies, Kingston, Jamaica
| | - Robert H J Bandsma
- Centre for Global Child Health, The Hospital for Sick Children, Toronto, Canada; Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada; Division of Paediatric Gastroenterology, Hepatology and Nutrition, Department of Paediatrics, The Hospital for Sick Children, Toronto, Canada
| | - Albert Koulman
- MRC Epidemiology Unit, Wellcome Trust-MRC Institute of Metabolic Science, NIHR Cambridge Comprehensive Biomedical Research Centre, Cambridge Biomedical Campus, University of Cambridge, Cambridge, UK; Core Metabolomics and Lipidomics Laboratory, Metabolic Research Laboratories, Institute of Metabolic Science, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Debbie S Thompson
- Caribbean Institute for Health Research, The University of the West Indies, Kingston, Jamaica
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Vresk L, Flanagan M, Daniel AI, Potani I, Bourdon C, Spiegel-Feld C, Thind MK, Farooqui A, Ling C, Miraglia E, Hu G, Wen B, Zlotkin S, James P, McGrath M, Bandsma RHJ. Micronutrient status in children aged 6-59 months with severe wasting and/or nutritional edema: implications for nutritional rehabilitation formulations. Nutr Rev 2024:nuad165. [PMID: 38350491 DOI: 10.1093/nutrit/nuad165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024] Open
Abstract
Undernutrition remains a global struggle and is associated with almost 45% of deaths in children younger than 5 years. Despite advances in management of severe wasting (though less so for nutritional edema), full and sustained recovery remains elusive. Children with severe wasting and/or nutritional edema (also commonly referred to as severe acute malnutrition and part of the umbrella term "severe malnutrition") continue to have a high mortality rate. This suggests a likely multifactorial etiology that may include micronutrient deficiency. Micronutrients are currently provided in therapeutic foods at levels based on expert opinion, with few supportive studies of high quality having been conducted. This narrative review looks at the knowledge base on micronutrient deficiencies in children aged 6-59 months who have severe wasting and/or nutritional edema, in addition to highlighting areas where further research is warranted (See "Future Directions" section).
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Affiliation(s)
- Laura Vresk
- Translational Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Mary Flanagan
- Translational Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Allison I Daniel
- Translational Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Isabel Potani
- Translational Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Celine Bourdon
- Translational Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Carolyn Spiegel-Feld
- Translational Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Mehakpreet K Thind
- Translational Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Amber Farooqui
- Translational Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Catriona Ling
- Translational Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Emiliano Miraglia
- Translational Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Guanlan Hu
- Translational Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Bijun Wen
- Translational Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Stanley Zlotkin
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Philip James
- Emergency Nutrition Network, Oxford, United Kingdom
| | | | - Robert H J Bandsma
- Translational Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
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Afroze F, Khoshnevisan F, Harawa PP, Islam Z, Bourdon C, Khoswe S, Islam M, Sarker SA, Islam F, Sayeem Bin Shahid ASM, Joosten K, Hulst JM, Eneya C, Walson JL, Berkley JA, Potani I, Voskuijl W, Ahmed T, Chisti MJ, Bandsma RHJ. Trajectories of resting energy expenditure and performance of predictive equations in children hospitalized with an acute illness and malnutrition: a longitudinal study. Sci Rep 2024; 14:3613. [PMID: 38351162 PMCID: PMC10864294 DOI: 10.1038/s41598-024-53791-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 02/05/2024] [Indexed: 02/16/2024] Open
Abstract
There is scarce data on energy expenditure in ill children with different degrees of malnutrition. This study aimed to determine resting energy expenditure (REE) trajectories in hospitalized malnourished children during and after hospitalization. We followed a cohort of children in Bangladesh and Malawi (2-23 months) with: no wasting (NW); moderate wasting (MW), severe wasting (SW), or edematous malnutrition (EM). REE was measured by indirect calorimetry at admission, discharge, 14-and-45-days post-discharge. 125 children (NW, n = 23; MW, n = 29; SW, n = 51; EM, n = 22), median age 9 (IQR 6, 14) months, provided 401 REE measurements. At admission, the REE of children with NW and MW was 67 (95% CI [58, 75]) and 70 (95% CI [63, 76]) kcal/kg/day, respectively, while REE in children with SW was higher, 79 kcal/kg/day (95% CI [74, 84], p = 0.018), than NW. REE in these groups was stable over time. In children with EM, REE increased from admission to discharge (65 kcal/kg/day, 95% CI [56, 73]) to 79 (95% CI [72, 86], p = 0.0014) and was stable hereafter. Predictive equations underestimated REE in 92% of participants at all time points. Recommended feeding targets during the acute phase of illness in severely malnourished children exceeded REE. Acutely ill malnourished children are at risk of being overfed when implementing current international guidelines.
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Affiliation(s)
- Farzana Afroze
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya
- Nutrition Research Division (NRD), International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Farnaz Khoshnevisan
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya
- Translational Medicine, Hospital for Sick Children, Toronto, Canada
| | - Philliness Prisca Harawa
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya
- Department of Paediatrics and Child Health, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Zahidul Islam
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya
- Nutrition Research Division (NRD), International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Celine Bourdon
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya
- Translational Medicine, Hospital for Sick Children, Toronto, Canada
| | - Stanley Khoswe
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya
- Department of Paediatrics and Child Health, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Munirul Islam
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya
- Nutrition Research Division (NRD), International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Shafiqul Alam Sarker
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya
- Nutrition Research Division (NRD), International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Farhana Islam
- Nutrition Research Division (NRD), International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Abu Sadat Mohammad Sayeem Bin Shahid
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya
- Nutrition Research Division (NRD), International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Koen Joosten
- Department of Neonatal and Paediatric Intensive Care, Division of Paediatric Intensive Care, Erasmus MC, Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Jessie M Hulst
- Division of Paediatric Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Canada
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Chisomo Eneya
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya
- Department of Paediatrics and Child Health, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Judd L Walson
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, USA
| | - James A Berkley
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya
- Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
- Clinical Research Department, KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Isabel Potani
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya
- Division of Paediatric Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Canada
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Canada
| | - Wieger Voskuijl
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya
- Department of Paediatrics, Amsterdam Centre for Global Child Health, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Tahmeed Ahmed
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya
- Nutrition Research Division (NRD), International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
- Office of Executive Director, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr, b), Dhaka, Bangladesh
| | - Mohammod Jobayer Chisti
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya
- Nutrition Research Division (NRD), International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Robert H J Bandsma
- The Childhood Acute Illness and Nutrition (CHAIN) Network, Nairobi, Kenya.
- Translational Medicine, Hospital for Sick Children, Toronto, Canada.
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Canada.
- Department of Biomedical Sciences, Kamuzu University of Health Sciences, Blantyre, Malawi.
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Brunet-Wood K, Tul-Noor Z, Bandsma RHJ, Carter L, Fleming-Carroll B, Gramlich L, Hutchison K, Huysentruyt K, Kalnins D, Marchand V, Martinez A, Pai N, Vachon M, Hulst JM. Development of the Pediatric Integrated Nutrition Pathway for Acute Care (P-INPAC) using a modified Delphi technique. Appl Physiol Nutr Metab 2024. [PMID: 38320255 DOI: 10.1139/apnm-2023-0180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
One in three hospitalized children have disease-related malnutrition (DRM) upon admission to hospital, and all children are at risk for further nutritional deterioration during hospital stay; however, systematic approaches to detect DRM in Canada are lacking. To standardise and improve hospital care, the multidisciplinary pediatric working group of the Canadian Malnutrition Taskforce aimed to develop a pediatric, inpatient nutritional care pathway based on available evidence, feasibility of resources, and expert consensus. The working group (n = 13) undertook a total of four meetings: an in-person meeting to draft the pathway based on existing literature and modelled after the Integrated Nutrition Pathway for Acute Care (INPAC) in adults, followed by three online surveys and three rounds of online Delphi consensus meetings to achieve agreement on the draft pathway. In the first Delphi survey, 32 questions were asked, whereas in the second and third rounds 27 and 8 questions were asked, respectively. Consensus was defined as any question/issue in which at least 80% agreed. The modified Delphi process allowed the development of an evidence-informed, consensus-based pathway for inpatients, the Pediatric Integrated Nutrition Pathway for Acute Care (P-INPAC). It includes screening <24 h of admission, assessment with use of Subjective Global Nutritional Assessment (SGNA) <48 h of admission, as well as prevention, and treatment of DRM divided into standard, advanced, and specialized nutrition care plans. Research is necessary to explore feasibility of implementation and evaluate the effectiveness by integrating P-INPAC into clinical practice.
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Affiliation(s)
- Kim Brunet-Wood
- Canadian Malnutrition Task Force, Canadian Nutrition Society, Ottawa, ON K1C 6A8, Canada
| | - Zujaja Tul-Noor
- Division of Paediatric Gastroenterology, Hepatology and Nutrition, Department of Paediatrics, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Robert H J Bandsma
- Division of Paediatric Gastroenterology, Hepatology and Nutrition, Department of Paediatrics, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
- Department of Nutritional Sciences, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Laura Carter
- Nutrition Services, Alberta Health Services, Edmonton, AB, Canada
| | - Bonnie Fleming-Carroll
- SickKids Learning Institute, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Leah Gramlich
- Division of Gastroenterology, University of Alberta, Edmonton, AB T6G 2G3, Canada
| | - Kim Hutchison
- Health Sciences Centre, Winnipeg, MB R3A 1R9, Canada
| | - Koen Huysentruyt
- Department of Pediatric Gastroenterology, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium
| | - Daina Kalnins
- Department of Clinical Dietetics, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Valerie Marchand
- Division of Paediatric Gastroenterology, Hepatology and Nutrition, Department of Paediatrics, Ste-Justine UHC, University of Montreal, Montreal, QC H3T 1C5, Canada
| | - Andrea Martinez
- Division of Paediatric Gastroenterology, Hepatology and Nutrition, Department of Paediatrics, IWK Health Centre, University of Dalhousie, Halifax, NS B3K 6R8, Canada
| | - Nikhil Pai
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, McMaster Children's Hospital, Hamilton, ON, Canada
| | - Mélanie Vachon
- Department of Clinical Nutrition, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC, G1R 2J6, Canada
| | - Jessie M Hulst
- Division of Paediatric Gastroenterology, Hepatology and Nutrition, Department of Paediatrics, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
- Department of Nutritional Sciences, University of Toronto, Toronto, ON M5S 1A8, Canada
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Germain K, So RWL, DiGiovanni LF, Watts JC, Bandsma RHJ, Kim PK. Upregulated pexophagy limits the capacity of selective autophagy. Nat Commun 2024; 15:375. [PMID: 38195640 PMCID: PMC10776696 DOI: 10.1038/s41467-023-44005-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 11/27/2023] [Indexed: 01/11/2024] Open
Abstract
Selective autophagy is an essential process to maintain cellular homeostasis through the constant recycling of damaged or superfluous components. Over a dozen selective autophagy pathways mediate the degradation of diverse cellular substrates, but whether these pathways can influence one another remains unknown. We address this question using pexophagy, the autophagic degradation of peroxisomes, as a model. We show in cells that upregulated pexophagy impairs the selective autophagy of both mitochondria and protein aggregates by exhausting the autophagy initiation factor, ULK1. We confirm this finding in cell models of the pexophagy-mediated form of Zellweger Spectrum Disorder, a disease characterized by peroxisome dysfunction. Further, we extend the generalizability of limited selective autophagy by determining that increased protein aggregate degradation reciprocally reduces pexophagy using cell models of Parkinson's Disease and Huntington's Disease. Our findings suggest that the degradative capacity of selective autophagy can become limited by an increase in one substrate.
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Affiliation(s)
- Kyla Germain
- Cell Biology Program, The Hospital for Sick Children, Toronto, ON, M5G 1X8, Canada
- Department of Biochemistry, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Raphaella W L So
- Department of Biochemistry, University of Toronto, Toronto, ON, M5S 1A8, Canada
- Tanz Centre for Research in Neurodegenerative Diseases, Toronto, ON, M5T 0S8, Canada
| | - Laura F DiGiovanni
- Cell Biology Program, The Hospital for Sick Children, Toronto, ON, M5G 1X8, Canada
- Department of Biochemistry, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Joel C Watts
- Department of Biochemistry, University of Toronto, Toronto, ON, M5S 1A8, Canada
- Tanz Centre for Research in Neurodegenerative Diseases, Toronto, ON, M5T 0S8, Canada
| | - Robert H J Bandsma
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, M5G 1X8, Canada.
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, M5S1A8, Canada.
| | - Peter K Kim
- Cell Biology Program, The Hospital for Sick Children, Toronto, ON, M5G 1X8, Canada.
- Department of Biochemistry, University of Toronto, Toronto, ON, M5S 1A8, Canada.
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Thind MK, Uhlig HH, Glogauer M, Palaniyar N, Bourdon C, Gwela A, Lancioni CL, Berkley JA, Bandsma RHJ, Farooqui A. A metabolic perspective of the neutrophil life cycle: new avenues in immunometabolism. Front Immunol 2024; 14:1334205. [PMID: 38259490 PMCID: PMC10800387 DOI: 10.3389/fimmu.2023.1334205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 12/15/2023] [Indexed: 01/24/2024] Open
Abstract
Neutrophils are the most abundant innate immune cells. Multiple mechanisms allow them to engage a wide range of metabolic pathways for biosynthesis and bioenergetics for mediating biological processes such as development in the bone marrow and antimicrobial activity such as ROS production and NET formation, inflammation and tissue repair. We first discuss recent work on neutrophil development and functions and the metabolic processes to regulate granulopoiesis, neutrophil migration and trafficking as well as effector functions. We then discuss metabolic syndromes with impaired neutrophil functions that are influenced by genetic and environmental factors of nutrient availability and usage. Here, we particularly focus on the role of specific macronutrients, such as glucose, fatty acids, and protein, as well as micronutrients such as vitamin B3, in regulating neutrophil biology and how this regulation impacts host health. A special section of this review primarily discusses that the ways nutrient deficiencies could impact neutrophil biology and increase infection susceptibility. We emphasize biochemical approaches to explore neutrophil metabolism in relation to development and functions. Lastly, we discuss opportunities and challenges to neutrophil-centered therapeutic approaches in immune-driven diseases and highlight unanswered questions to guide future discoveries.
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Affiliation(s)
- Mehakpreet K Thind
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Holm H Uhlig
- Translational Gastroenterology Unit, Experimental Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
- Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Michael Glogauer
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
- Department of Dental Oncology and Maxillofacial Prosthetics, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Nades Palaniyar
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- Laboratory Medicine and Pathobiology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Institute of Medical Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Celine Bourdon
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Agnes Gwela
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Kenya Medical Research Institute (KEMRI)/Wellcome Trust Research Programme, Centre for Geographic Medicine Research, Kilifi, Kenya
| | - Christina L Lancioni
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Department of Pediatrics, Oregon Health and Science University, Portland, OR, United States
| | - James A Berkley
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Kenya Medical Research Institute (KEMRI)/Wellcome Trust Research Programme, Centre for Geographic Medicine Research, Kilifi, Kenya
- Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, United Kingdom
| | - Robert H J Bandsma
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
- Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, Toronto, ON, Canada
| | - Amber Farooqui
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Omega Laboratories Inc, Mississauga, ON, Canada
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Almaatani D, Cory E, Gardner J, Alexanian-Farr M, Hulst JM, Bandsma RHJ, Van Den Heuvel M. Child and Maternal Factors Associated with Feeding Practices in Children with Poor Growth. Nutrients 2023; 15:4850. [PMID: 38004244 PMCID: PMC10675486 DOI: 10.3390/nu15224850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/10/2023] [Accepted: 11/17/2023] [Indexed: 11/26/2023] Open
Abstract
The development of adequate growth and healthy eating behaviors depends on nutritious food and responsive feeding practices. Our study examined (1) the relationship between maternal concern about child weight or perceived feeding difficulties and their feeding practices, and (2) the moderating role of child temperament and maternal mental health on their feeding practices. A cross-sessional study included mother-child dyads (n = 98) from a tertiary growth and feeding clinic. Children had a mean age of 12.7 ± 5.0 months and a mean weight-for-age z-score of -2.0 ± 1.3. Responsive and controlling feeding practices were measured with the Infant Feeding Styles Questionnaire. Spearman correlation and moderation analysis were performed. Maternal concern about child weight and perceived feeding difficulties were negatively correlated with responsive feeding (r = -0.40, -0.48, p < 0.001). A greater concern about child weight or perceived feeding difficulties was associated with greater use of pressure feeding practices when effortful control was low (B = 0.49, t = 2.47, p = 0.01; B = -0.27, p = 0.008). Maternal anxiety had a significant moderation effect on the relationship between feeding difficulty and pressure feeding (B = -0.04, p = 0.009). Higher maternal concern about child weight and perceived feeding difficulties were associated with less responsive satiety feeding beliefs and behaviors. Both child effortful control and maternal anxiety influenced the relationship between weight and feeding concerns and the use of pressure feeding practices.
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Affiliation(s)
- Dina Almaatani
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada; (D.A.)
| | - Emma Cory
- Department of Paediatrics, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Julie Gardner
- Department of Paediatrics, University of Toronto, Toronto, ON M5S 1A1, Canada
| | | | - Jessie M. Hulst
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada; (D.A.)
- Department of Paediatrics, University of Toronto, Toronto, ON M5S 1A1, Canada
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Robert H. J. Bandsma
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada; (D.A.)
- Department of Paediatrics, University of Toronto, Toronto, ON M5S 1A1, Canada
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Meta Van Den Heuvel
- Department of Paediatrics, University of Toronto, Toronto, ON M5S 1A1, Canada
- Division of Paediatrics, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
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Massara P, Asrar A, Bourdon C, Ngari M, Keown-Stoneman CDG, Maguire JL, Birken CS, Berkley JA, Bandsma RHJ, Comelli EM. New approaches and technical considerations in detecting outlier measurements and trajectories in longitudinal children growth data. BMC Med Res Methodol 2023; 23:232. [PMID: 37833647 PMCID: PMC10576311 DOI: 10.1186/s12874-023-02045-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
BACKGROUND Growth studies rely on longitudinal measurements, typically represented as trajectories. However, anthropometry is prone to errors that can generate outliers. While various methods are available for detecting outlier measurements, a gold standard has yet to be identified, and there is no established method for outlying trajectories. Thus, outlier types and their effects on growth pattern detection still need to be investigated. This work aimed to assess the performance of six methods at detecting different types of outliers, propose two novel methods for outlier trajectory detection and evaluate how outliers affect growth pattern detection. METHODS We included 393 healthy infants from The Applied Research Group for Kids (TARGet Kids!) cohort and 1651 children with severe malnutrition from the co-trimoxazole prophylaxis clinical trial. We injected outliers of three types and six intensities and applied four outlier detection methods for measurements (model-based and World Health Organization cut-offs-based) and two for trajectories. We also assessed growth pattern detection before and after outlier injection using time series clustering and latent class mixed models. Error type, intensity, and population affected method performance. RESULTS Model-based outlier detection methods performed best for measurements with precision between 5.72-99.89%, especially for low and moderate error intensities. The clustering-based outlier trajectory method had high precision of 14.93-99.12%. Combining methods improved the detection rate to 21.82% in outlier measurements. Finally, when comparing growth groups with and without outliers, the outliers were shown to alter group membership by 57.9 -79.04%. CONCLUSIONS World Health Organization cut-off-based techniques were shown to perform well in few very particular cases (extreme errors of high intensity), while model-based techniques performed well, especially for moderate errors of low intensity. Clustering-based outlier trajectory detection performed exceptionally well across all types and intensities of errors, indicating a potential strategic change in how outliers in growth data are viewed. Finally, the importance of detecting outliers was shown, given its impact on children growth studies, as demonstrated by comparing results of growth group detection.
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Affiliation(s)
- Paraskevi Massara
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada.
| | - Arooj Asrar
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Celine Bourdon
- Translational Medicine Program, Hospital for Sick Children, Toronto, Canada
| | - Moses Ngari
- Kenya Medical Research Institute (KEMRI)/ Wellcome Trust Research Programme, Kilifi, Kenya
| | - Charles D G Keown-Stoneman
- Li KaShing Knowledge Institute, Unity Health Toronto, Toronto, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| | - Jonathon L Maguire
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada
- Li KaShing Knowledge Institute, Unity Health Toronto, Toronto, Canada
| | - Catherine S Birken
- Department of Pediatrics, Faculty of Medicine, University of Toronto, Toronto, Canada
- Child Health Evaluative Services, Hospital for Sick Children, Toronto, Canada
| | - James A Berkley
- Kenya Medical Research Institute (KEMRI)/ Wellcome Trust Research Programme, Kilifi, Kenya
- Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK
| | - Robert H J Bandsma
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada.
- Translational Medicine Program, Hospital for Sick Children, Toronto, Canada.
| | - Elena M Comelli
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada.
- Joannah and Brian Lawson Center for Child Nutrition, University of Toronto, Toronto, Canada.
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9
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Ling C, Versloot CJ, Arvidsson Kvissberg ME, Hu G, Swain N, Horcas-Nieto JM, Miraglia E, Thind MK, Farooqui A, Gerding A, van Eunen K, Koster MH, Kloosterhuis NJ, Chi L, ChenMi Y, Langelaar-Makkinje M, Bourdon C, Swann J, Smit M, de Bruin A, Youssef SA, Feenstra M, van Dijk TH, Thedieck K, Jonker JW, Kim PK, Bakker BM, Bandsma RHJ. Rebalancing of mitochondrial homeostasis through an NAD +-SIRT1 pathway preserves intestinal barrier function in severe malnutrition. EBioMedicine 2023; 96:104809. [PMID: 37738832 PMCID: PMC10520344 DOI: 10.1016/j.ebiom.2023.104809] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 09/05/2023] [Accepted: 09/06/2023] [Indexed: 09/24/2023] Open
Abstract
BACKGROUND The intestine of children with severe malnutrition (SM) shows structural and functional changes that are linked to increased infection and mortality. SM dysregulates the tryptophan-kynurenine pathway, which may impact processes such as SIRT1- and mTORC1-mediated autophagy and mitochondrial homeostasis. Using a mouse and organoid model of SM, we studied the repercussions of these dysregulations on malnutrition enteropathy and the protective capacity of maintaining autophagy activity and mitochondrial health. METHODS SM was induced through feeding male weanling C57BL/6 mice a low protein diet (LPD) for 14-days. Mice were either treated with the NAD+-precursor, nicotinamide; an mTORC1-inhibitor, rapamycin; a SIRT1-activator, resveratrol; or SIRT1-inhibitor, EX-527. Malnutrition enteropathy was induced in enteric organoids through amino-acid deprivation. Features of and pathways to malnutrition enteropathy were examined, including paracellular permeability, nutrient absorption, and autophagic, mitochondrial, and reactive-oxygen-species (ROS) abnormalities. FINDINGS LPD-feeding and ensuing low-tryptophan availability led to villus atrophy, nutrient malabsorption, and intestinal barrier dysfunction. In LPD-fed mice, nicotinamide-supplementation was linked to SIRT1-mediated activation of mitophagy, which reduced damaged mitochondria, and improved intestinal barrier function. Inhibition of mTORC1 reduced intestinal barrier dysfunction and nutrient malabsorption. Findings were validated and extended using an organoid model, demonstrating that resolution of mitochondrial ROS resolved barrier dysfunction. INTERPRETATION Malnutrition enteropathy arises from a dysregulation of the SIRT1 and mTORC1 pathways, leading to disrupted autophagy, mitochondrial homeostasis, and ROS. Whether nicotinamide-supplementation in children with SM could ameliorate malnutrition enteropathy should be explored in clinical trials. FUNDING This work was supported by the Bill and Melinda Gates Foundation, the Sickkids Research Institute, the Canadian Institutes of Health Research, and the University Medical Center Groningen.
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Affiliation(s)
- Catriona Ling
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada; Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Christian J Versloot
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada; Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Matilda E Arvidsson Kvissberg
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada; Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Guanlan Hu
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada; Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Nathan Swain
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - José M Horcas-Nieto
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Emily Miraglia
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada; Department of Biochemistry, University of Toronto, Toronto, ON, Canada; Cell Biology Program, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Mehakpreet K Thind
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada; Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Amber Farooqui
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - Albert Gerding
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands; Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Karen van Eunen
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Mirjam H Koster
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Niels J Kloosterhuis
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Lijun Chi
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - YueYing ChenMi
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - Miriam Langelaar-Makkinje
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Celine Bourdon
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - Jonathan Swann
- Faculty of Medicine, School of Human Development and Health, University of Southampton, United Kingdom; Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, United Kingdom
| | - Marieke Smit
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Alain de Bruin
- Department of Biomolecular Health Sciences, Dutch Molecular Pathology Centre, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Sameh A Youssef
- Department of Biomolecular Health Sciences, Dutch Molecular Pathology Centre, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands; Janssen Pharmaceutica Research and Development, 2340, Beerse, Belgium
| | - Marjon Feenstra
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - Theo H van Dijk
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Kathrin Thedieck
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands; Institute of Biochemistry and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innsbruck, Austria; Freiburg Materials Research Center (FMF), University Freiburg, Freiburg, Germany
| | - Johan W Jonker
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Peter K Kim
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada; Cell Biology Program, Hospital for Sick Children, Toronto, Ontario, Canada.
| | - Barbara M Bakker
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands.
| | - Robert H J Bandsma
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada; Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada; Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands; Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, Toronto, ON, Canada.
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10
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Wen B, Farooqui A, Bourdon C, Tarafdar N, Ngari M, Chimwezi E, Thitiri J, Mwalekwa L, Walson JL, Voskuijl W, Berkley JA, Bandsma RHJ. Intestinal disturbances associated with mortality of children with complicated severe malnutrition. Commun Med (Lond) 2023; 3:128. [PMID: 37773543 PMCID: PMC10541881 DOI: 10.1038/s43856-023-00355-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 09/11/2023] [Indexed: 10/01/2023] Open
Abstract
BACKGROUND Children admitted to hospital with complicated severe malnutrition (CSM) have high mortality despite compliance with standard WHO management guidelines. Limited data suggests a relationship between intestinal dysfunction and poor prognosis in CSM, but this has not been explicitly studied. This study aimed to evaluate the role of intestinal disturbances in CSM mortality. METHODS A case-control study nested within a randomized control trial was conducted among children hospitalized with CSM in Kenya and Malawi. Children who died (cases, n = 68) were compared with those who were discharged, propensity matched to the cases on age, HIV and nutritional status (controls, n = 68) on fecal metabolomics that targeted about 70 commonly measured metabolites, and enteropathy markers: fecal myeloperoxidase (MPO), fecal calprotectin, and circulating intestinal fatty acid binding protein (I-FABP). RESULTS The fecal metabolomes of cases show specific reductions in amino acids, monosaccharides, and microbial fermentation products, when compared to controls. SCFA levels did not differ between groups. The overall fecal metabolomics signature moderately differentiates cases from controls (AUC = 0.72). Enteropathy markers do not differ between groups overall, although serum I-FABP is elevated in cases in a sensitivity analysis among non-edematous children. Integrative analysis with systemic data suggests an indirect role of intestinal inflammation in the causal path of mortality. CONCLUSIONS Intestinal disturbances appear to have an indirect association with acute mortality. Findings of the study improve our understanding of pathophysiological pathways underlying mortality of children with CSM.
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Affiliation(s)
- Bijun Wen
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada
- Department of Translational medicine, Hospital for Sick Children, Toronto, Canada
| | - Amber Farooqui
- Department of Translational medicine, Hospital for Sick Children, Toronto, Canada
| | - Celine Bourdon
- Department of Translational medicine, Hospital for Sick Children, Toronto, Canada
- The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya
| | - Nawar Tarafdar
- Department of Translational medicine, Hospital for Sick Children, Toronto, Canada
| | - Moses Ngari
- The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | | | - Johnstone Thitiri
- The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | - Laura Mwalekwa
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
- Department of Paediatrics, Coast General Hospital, Mombasa, Kenya
| | - Judd L Walson
- The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya
- Departments of Global Health, Medicine, Pediatrics and Epidemiology, University of Washington, Seattle, WA, USA
| | - Wieger Voskuijl
- The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya
- Amsterdam Institute for Global Health and Development, Department of Global Health, Amsterdam University Medical Centres, Amsterdam, The Netherlands
- Department of Paediatrics and Child Health, Kamuzu University of Health Sciences (formerly College of Medicine), Blantyre, Malawi
| | - James A Berkley
- The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
- Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Robert H J Bandsma
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada.
- Department of Translational medicine, Hospital for Sick Children, Toronto, Canada.
- The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya.
- Department of Biomedical Sciences, Kamuzu University of Health Sciences (formerly College of Medicine), Blantyre, Malawi.
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11
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Fewtrell M, Bandsma RHJ, Baur L, Duggan CP, Dumrongwongsiri O, Hojsak I, Khatami K, Koletzko B, Kovalskys I, Li Z, Mouane N, Nel E, Sachdev HS, Spolidoro JV. Role of Pediatricians in Promoting and Supporting Breastfeeding: A Position Paper of the International Pediatric Association Strategic Advisory Group on Infant, Child, and Adolescent Nutrition. Ann Nutr Metab 2023; 79:469-475. [PMID: 37673040 DOI: 10.1159/000534004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 09/04/2023] [Indexed: 09/08/2023]
Abstract
BACKGROUND Promoting and supporting breastfeeding is an important public health intervention with multiple benefits for both infants and mothers. Even modest increases in the prevalence and duration of breastfeeding could significantly reduce healthcare costs and improve maternal and child health outcomes. However, widespread adoption of breastfeeding recommendations remains poor in most settings, which contributes to widening health and social inequalities. Pediatricians have a duty to advocate for improving child health, including promoting and supporting breastfeeding. SUMMARY This paper, from the International Pediatric Association Special Advisory Group on Nutrition, considers common barriers to breastfeeding and addresses how pediatricians can better promote and support breastfeeding, both at an individual level and by influencing practice and policy. All pediatricians need to understand the basics of breastfeeding, including lactation physiology, recognize common breastfeeding problems, and advise mothers or refer them for appropriate support; training curricula for general pediatricians and all pediatric subspecialties should reflect this. Even in the situation where their day-to-day work does not involve direct contact with mothers and infants, pediatricians can have an important influence on policy and practice. They should support colleagues who work directly with mothers and infants, ensuring that systems and environments are conducive to breastfeeding and, where appropriate, milk expression. Pediatricians and pediatric organizations should also promote policies aimed at promoting and supporting breastfeeding at local, regional, national, and international levels. KEY MESSAGES Pediatricians have a duty to promote and support breastfeeding, regardless of their day-to-day role and responsibilities. Pediatric training curricula should ensure that all trainees acquire a good understanding of breastfeeding so they are able to effectively support mothers in their personal practice but also influence breastfeeding practice and policy at a local, regional, national, and international level.
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Affiliation(s)
- Mary Fewtrell
- Childhood Nutrition Research Group, Population, Practice and Policy Department, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Robert H J Bandsma
- Hospital for Sick Children, Division of Gastroenterology, Hepatology and Nutrition, Toronto, Ontario, Canada
| | - Louise Baur
- Children's Hospital Westmead Clinical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Christopher P Duggan
- Division of Gastroenterology, Hepatology and Nutrition, Division of Nutrition, Harvard Medical School, Department of Nutrition, Harvard TH Chan School of Public Health, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Oraporn Dumrongwongsiri
- Division of Nutrition, Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Iva Hojsak
- Children's Hospital Zagreb, University of Zagreb Medical School, Zagreb, Croatia
| | - Katayoun Khatami
- Pediatric Gastroenterology, Hepatology and Nutrition Research Center, Research Institute for Children's Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Berthold Koletzko
- Division of Metabolic and Nutritional Medicine, Department of Pediatrics, Dr. von Hauner Children's Hospital, LMU University Hospitals, LMU - Ludwig Maximillians Universität Munich, Munich, Germany
| | - Irina Kovalskys
- Faculty of Medical Sciences, Argentine Pontifical Catholic University, Buenos Aires, Argentina
- Maestría en Nutrición Humana, IDIP Instituto de Desarrollo e Investigaciones Pediátricas del Hospital de Niños de La Plata, Universidad Nacional de La Plata, Buenos Aires, Argentina
| | - Zhenghong Li
- Department of Pediatrics, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Nezha Mouane
- Academic Children's Hospital Ibn Sina, Mohammed V University, Rabat, Morocco
| | - Etienne Nel
- FMHS, Stellenbosch University, Stellenbosch, South Africa
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12
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Massara P, Lopez-Dominguez L, Bourdon C, Bassani DG, Keown-Stoneman CDG, Birken CS, Maguire JL, Santos IS, Matijasevich A, Bandsma RHJ, Comelli EM. A novel systematic pipeline for increased predictability and explainability of growth patterns in children using trajectory features. Int J Med Inform 2023; 177:105143. [PMID: 37473656 DOI: 10.1016/j.ijmedinf.2023.105143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 06/28/2023] [Accepted: 07/05/2023] [Indexed: 07/22/2023]
Abstract
OBJECTIVE Longitudinal patterns of growth in early childhood are associated with health conditions throughout life. Knowledge of such patterns and the ability to predict them can lead to better prevention and improved health promotion in adulthood. However, growth analyses are characterized by significant variability, and pattern detection is affected by the method applied. Moreover, pattern labelling is typically performed based on ad hoc methods, such as visualizations or clinical experience. Here, we propose a novel pipeline using features extracted from growth trajectories using mathematical, statistical and machine-learning approaches to predict growth patterns and label them in a systematic and unequivocal manner. METHODS We extracted mathematical and clinical features from 9577 children growth trajectories embedded with machine-learning predictions of the growth patterns. We experimented with two sets of features (CAnonical Time-series Characteristics and trajectory features specific to growth), developmental periods and six machine-learning classifiers. Clinical experts provided labels for the detected patterns and decision rules were created to associate the features with the labelled patterns. The predictive capacity of the extracted features was validated on two heterogenous populations (The Applied Research Group for Kids and the 2004 Pelotas Birth Cohort, based in Canada and Brazil, respectively). RESULTS Features predictive ability measured by accuracy and F1 score was ≥ 80% and ≥ 0.76 respectively in both cohorts. A small number of features (n = 74) was sufficient to distinguish between growth patterns in both cohorts. Slope, intercept of the trajectory, age at peak value, start value and change of the growth measure were among the top identified features. CONCLUSION Growth features can be reliably used as predictors of growth patterns and provide an unbiased understanding of growth patterns. They can be used as tool to reduce the effort to repeat analysis and variability concerning anthropometric measures, time points and analytical methods, in the context of the same or similar populations.
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Affiliation(s)
- Paraskevi Massara
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto,Toronto, Canada.
| | - Lorena Lopez-Dominguez
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto,Toronto, Canada; Translational Medicine Program, Hospital for Sick Children, Toronto, Canada
| | - Celine Bourdon
- Translational Medicine Program, Hospital for Sick Children, Toronto, Canada
| | - Diego G Bassani
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada; Center for Global Child Health & Child Health Evaluative Sciences, Hospital for Sick Children, Toronto, Canada
| | - Charles D G Keown-Stoneman
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada; Applied Health Research Center, Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Canada
| | - Catherine S Birken
- Department of Pediatrics, Faculty of Medicine, University of Toronto, Toronto, Canada; Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Canada
| | - Jonathon L Maguire
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto,Toronto, Canada; Li Ka Shing Knowledge Institute, Unity Health Toronto,Toronto, Canada; Pediatric Outcomes Research Team, The Hospital for Sick Children, Toronto, Canada
| | - Iná S Santos
- Post-Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brasil
| | - Alicia Matijasevich
- Departmento de Medicina Preventiva, Faculdade de Medicina FMUSP, Universidade de São Paulo, Brasil
| | - Robert H J Bandsma
- Translational Medicine Program, Hospital for Sick Children, Toronto, Canada; Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Canada.
| | - Elena M Comelli
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto,Toronto, Canada; Joannah and Brian Lawson Center for Child Nutrition, University of Toronto, Toronto, Canada.
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13
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Potani I, Daniel AI, Briend A, Courtney-Martin G, Berkley JA, Voskuijl W, Vresk L, Bourdon C, Kathumba S, Mbale E, Bandsma RHJ. A protocol for a proof-of-concept randomized control trial testing increased protein quantity and quality in ready-to-use therapeutic food in improving linear growth among 6-23-month-old children with severe wasting in Malawi. PLoS One 2023; 18:e0287680. [PMID: 37619218 PMCID: PMC10449476 DOI: 10.1371/journal.pone.0287680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 06/07/2023] [Indexed: 08/26/2023] Open
Abstract
INTRODUCTION Ready-to-use therapeutic foods (RUTFs) have successfully promoted recovery from severe wasting and increased treatment coverage. However, RUTFs do not sufficiently improve linear growth, leaving many survivors of severe wasting at risk of persistent stunting, which is associated with high mortality risk, poor child development and non-communicable diseases in adulthood. High protein quantity and quality can stimulate linear growth. AIM The trial aims to assess whether higher-protein-RUTF leads to higher concentrations of markers of linear growth compared to standard RUTF among 6-23 months old children with severe wasting. METHODS We designed a higher protein quantity and quality RUTF for a proof-of-concept (PoC) double-blind randomized controlled trial. OUTCOMES The primary outcome is a change in insulin-like growth factor-1 (IGF-1), a hormone positively associated with linear growth after four weeks of treatment. Secondary outcomes include changes in ponderal and linear growth and in body composition from baseline to eight weeks later; plasma amino acid profile at four weeks; acceptability and safety. IMPLICATIONS These findings will help in informing the potential impact of increased protein in RUTF on linear growth when treating severe wasting towards conducting a larger clinical trial. TRIAL REGISTRATION The trial has been registered on clinicaltrial.gov (NCT05737472).
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Affiliation(s)
- Isabel Potani
- Translational Medicine Program, Research Institute, Hospital for Sick Children, Toronto, Canada
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Allison I. Daniel
- Translational Medicine Program, Research Institute, Hospital for Sick Children, Toronto, Canada
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada
- Independent Nutrition Consultant, Toronto, Canada
| | - André Briend
- Centre for Child Health Research, University of Tampere School of Medicine, Tampere, Finland
- Department of Nutrition, Exercise, and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Glenda Courtney-Martin
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada
| | - James A. Berkley
- Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, United Kingdom
- Clinical Research Department, Kenya Medical Research Institute–Wellcome Trust Research Programme, Kilifi, Kenya
| | - Wieger Voskuijl
- Department of Paediatrics and Child Health, Kamuzu University of Health Sciences, Blantyre, Malawi
- Amsterdam Universtair Medische Centra, University of Amsterdam, Amsterdam Centre for Global Child Health, Emma Children’s Hospital, Amsterdam, The Netherlands
| | - Laura Vresk
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Canada
| | - Celine Bourdon
- Translational Medicine Program, Research Institute, Hospital for Sick Children, Toronto, Canada
| | - Sylvester Kathumba
- Department of Nutrition and Human Immunodeficiency Virus, Ministry of Health, Lilongwe, Malawi
| | - Emmie Mbale
- Department of Paediatrics and Child Health, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Robert H. J. Bandsma
- Translational Medicine Program, Research Institute, Hospital for Sick Children, Toronto, Canada
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada
- Department of Paediatrics and Child Health, Kamuzu University of Health Sciences, Blantyre, Malawi
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14
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Chi L, Lee D, Leung S, Hu G, Wen B, Delgado-Olguin P, Vissa M, Li R, Brumell JH, Kim PK, Bandsma RHJ. Loss of functional peroxisomes leads to increased mitochondrial biogenesis and reduced autophagy that preserve mitochondrial function. Cell Mol Life Sci 2023; 80:183. [PMID: 37338571 DOI: 10.1007/s00018-023-04827-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 05/28/2023] [Accepted: 05/29/2023] [Indexed: 06/21/2023]
Abstract
Peroxisomes are essential for mitochondrial health, as the absence of peroxisomes leads to altered mitochondria. However, it is unclear whether the changes in mitochondria are a function of preserving cellular function or a response to cellular damage caused by the absence of peroxisomes. To address this, we developed conditional hepatocyte-specific Pex16 deficient (Pex16 KO) mice that develop peroxisome loss and subjected them to a low-protein diet to induce metabolic stress. Loss of PEX16 in hepatocytes led to increased biogenesis of small mitochondria and reduced autophagy flux but with preserved capacity for respiration and ATP capacity. Metabolic stress induced by low protein feeding led to mitochondrial dysfunction in Pex16 KO mice and impaired biogenesis. Activation of PPARα partially corrected these mitochondrial disturbances, despite the absence of peroxisomes. The findings of this study demonstrate that the absence of peroxisomes in hepatocytes results in a concerted effort to preserve mitochondrial function, including increased mitochondrial biogenesis, altered morphology, and modified autophagy activity. Our study underscores the relationship between peroxisomes and mitochondria in regulating the hepatic metabolic responses to nutritional stressors.
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Affiliation(s)
- Lijun Chi
- Translational Medicine Program, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
| | - Dorothy Lee
- Translational Medicine Program, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
- Department of Physiology, University of Toronto, Toronto, ON, M5S 1A1, Canada
| | - Sharon Leung
- Cell Biology Program, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
| | - Guanlan Hu
- Translational Medicine Program, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
- Department of Nutritional Sciences, University of Toronto, Toronto, ON, M5S 1A1, Canada
| | - Bijun Wen
- Translational Medicine Program, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
- Department of Nutritional Sciences, University of Toronto, Toronto, ON, M5S 1A1, Canada
| | - Paul Delgado-Olguin
- Translational Medicine Program, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, M5S 1A1, Canada
- Heart and Stroke Richard Lewar Centre of Excellence, Toronto, ON, M5S 3H2, Canada
| | - Miluska Vissa
- Cell Biology Program, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
| | - Ren Li
- Cell Biology Program, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
| | - John H Brumell
- Cell Biology Program, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, M5S 1A1, Canada
| | - Peter K Kim
- Cell Biology Program, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada.
- Department of Biochemistry, University of Toronto, Toronto, ON, M5S 1A1, Canada.
| | - Robert H J Bandsma
- Translational Medicine Program, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada.
- Department of Nutritional Sciences, University of Toronto, Toronto, ON, M5S 1A1, Canada.
- Centre for Global Child Health, The Hospital of Sick Children, Toronto, ON, M5G 0A4, Canada.
- Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, ON, M5G 0A4, Canada.
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15
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Vieira-Lara MA, Reijne AC, Koshian S, Ciapaite J, Abegaz F, Talarovicova A, van Dijk TH, Versloot CJ, Bandsma RHJ, Wolters JC, Groen AK, Reijngoud DJ, van Dijk G, Bakker BM. Age and diet modulate the insulin-sensitizing effects of exercise: a tracer-based oral glucose tolerance test. Diabetes 2023:148806. [PMID: 37094362 DOI: 10.2337/db220746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 04/19/2023] [Indexed: 04/26/2023]
Abstract
Diet modulates the development of insulin resistance during aging. This includes tissue-specific alterations in insulin signaling and mitochondrial function, which ultimately affect glucose homeostasis. Exercise stimulates glucose clearance, mitochondrial lipid oxidation and enhances insulin sensitivity. It is not well known how exercise interacts with age and diet in the development of insulin resistance. To investigate this, oral glucose tolerance tests (OGTT) with a tracer were conducted in mice ranging from 4 to 21 months of age, fed a low- (LFD) or high-fat diet (HFD), with or without life-long voluntary access to a running wheel (RW). We developed a computational model to derive glucose fluxes, which were commensurate with independent values from steady-state tracer infusions. Both insulin sensitivity indices derived for peripheral tissues and liver (IS-P and IS-L, respectively) were steeply decreased by aging and a HFD. This preceded the age-dependent decline in the mitochondrial capacity to oxidize lipids. In LFD young animals, RW access enhanced the IS-P concomitantly with the muscle β- oxidation capacity. Surprisingly, RW access completely prevented the age-dependent IS-L decrease, but only in LFD animals. This study indicates, therefore, that endurance exercise can improve the age-dependent decline in organ-specific IS mostly in the context of a healthy diet.
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Affiliation(s)
- Marcel A Vieira-Lara
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Aaffien C Reijne
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Groningen Institute for Evolutionary Life Sciences, Department of Behavioral Neuroscience, University of Groningen, Groningen, The Netherlands
| | - Serj Koshian
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Jolita Ciapaite
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Fentaw Abegaz
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Alzbeta Talarovicova
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Groningen Institute for Evolutionary Life Sciences, Department of Behavioral Neuroscience, University of Groningen, Groningen, The Netherlands
| | - Theo H van Dijk
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Christian J Versloot
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - Robert H J Bandsma
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - Justina C Wolters
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Albert K Groen
- Department of Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Dirk-Jan Reijngoud
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Gertjan van Dijk
- Groningen Institute for Evolutionary Life Sciences, Department of Behavioral Neuroscience, University of Groningen, Groningen, The Netherlands
| | - Barbara M Bakker
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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16
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Vieira-Lara MA, Reijne AC, Koshian S, Ciapaite J, Abegaz F, Talarovicova A, van Dijk TH, Versloot CJ, Bandsma RHJ, Wolters JC, Groen AK, Reijngoud DJ, van Dijk G, Bakker BM. Age and diet modulate the insulin-sensitizing effects of exercise: a tracer-based oral glucose tolerance test. Diabetes 2023:148957. [PMID: 37204269 DOI: 10.2337/db22-0746] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 04/19/2023] [Indexed: 05/20/2023]
Abstract
Diet modulates the development of insulin resistance during aging. This includes tissue-specific alterations in insulin signaling and mitochondrial function, which ultimately affect glucose homeostasis. Exercise stimulates glucose clearance, mitochondrial lipid oxidation and enhances insulin sensitivity. It is not well known how exercise interacts with age and diet in the development of insulin resistance. To investigate this, oral glucose tolerance tests (OGTT) with a tracer were conducted in mice ranging from 4 to 21 months of age, fed a low- (LFD) or high-fat diet (HFD), with or without life-long voluntary access to a running wheel (RW). We developed a computational model to derive glucose fluxes, which were commensurate with independent values from steady-state tracer infusions. Both insulin sensitivity indices derived for peripheral tissues and liver (IS-P and IS-L, respectively) were steeply decreased by aging and a HFD. This preceded the age-dependent decline in the mitochondrial capacity to oxidize lipids. In LFD young animals, RW access enhanced the IS-P concomitantly with the muscle β- oxidation capacity. Surprisingly, RW access completely prevented the age-dependent IS-L decrease, but only in LFD animals. This study indicates, therefore, that endurance exercise can improve the age-dependent decline in organ-specific IS mostly in the context of a healthy diet.
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Affiliation(s)
- Marcel A Vieira-Lara
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Aaffien C Reijne
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Groningen Institute for Evolutionary Life Sciences, Department of Behavioral Neuroscience, University of Groningen, Groningen, The Netherlands
| | - Serj Koshian
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Jolita Ciapaite
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Fentaw Abegaz
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Alzbeta Talarovicova
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Groningen Institute for Evolutionary Life Sciences, Department of Behavioral Neuroscience, University of Groningen, Groningen, The Netherlands
| | - Theo H van Dijk
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Christian J Versloot
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - Robert H J Bandsma
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - Justina C Wolters
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Albert K Groen
- Department of Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Dirk-Jan Reijngoud
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Gertjan van Dijk
- Groningen Institute for Evolutionary Life Sciences, Department of Behavioral Neuroscience, University of Groningen, Groningen, The Netherlands
| | - Barbara M Bakker
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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17
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Horcas-Nieto JM, Versloot CJ, Langelaar-Makkinje M, Gerding A, Blokzijl T, Koster MH, Baanstra M, Martini IA, Coppes RP, Bourdon C, van Ijzendoorn SCD, Kim P, Bandsma RHJ, Bakker BM. Organoids as a model to study intestinal and liver dysfunction in severe malnutrition. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166635. [PMID: 36581145 DOI: 10.1016/j.bbadis.2022.166635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/02/2022] [Accepted: 12/20/2022] [Indexed: 12/27/2022]
Affiliation(s)
- José M Horcas-Nieto
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Christian J Versloot
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Miriam Langelaar-Makkinje
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Albert Gerding
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands; Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Tjasso Blokzijl
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Mirjam H Koster
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Mirjam Baanstra
- Department of Biomedical Sciences of Cell & Systems, Section Molecular Cell Biology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Ingrid A Martini
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Robert P Coppes
- Department of Biomedical Sciences of Cell & Systems, Section Molecular Cell Biology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Céline Bourdon
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - Sven C D van Ijzendoorn
- Department of Biomedical Sciences of Cell & Systems, Section Molecular Cell Biology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Peter Kim
- Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada; Department of Biochemistry, University of Toronto, Toronto, ON, Canada
| | - Robert H J Bandsma
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands; Translational Medicine, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada; Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada; Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, Toronto, ON, Canada.
| | - Barbara M Bakker
- Laboratory of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, the Netherlands.
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18
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López-Domínguez L, Bassani DG, Bourdon C, Massara P, Santos IS, Matijasevich A, Barros AJD, Comelli EM, Bandsma RHJ. A novel shape-based approach to identify gestational age-adjusted growth patterns from birth to 11 years of age. Sci Rep 2023; 13:1709. [PMID: 36720954 PMCID: PMC9889302 DOI: 10.1038/s41598-023-28485-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 01/19/2023] [Indexed: 02/01/2023] Open
Abstract
Child growth patterns assessment is critical to design public health interventions. However, current analytical approaches may overlook population heterogeneity. To overcome this limitation, we developed a growth trajectories clustering pipeline that incorporates a shape-respecting distance, baseline centering (i.e., birth-size normalized trajectories) and Gestational Age (GA)-correction to characterize shape-based child growth patterns. We used data from 3945 children (461 preterm) in the 2004 Pelotas Birth Cohort with at least 3 measurements between birth (included) and 11 years of age. Sex-adjusted weight-, length/height- and body mass index-for-age z-scores were derived at birth, 3 months, and at 1, 2, 4, 6 and 11 years of age (INTERGROWTH-21st and WHO growth standards). Growth trajectories clustering was conducted for each anthropometric index using k-means and a shape-respecting distance, accounting or not for birth size and/or GA-correction. We identified 3 trajectory patterns for each anthropometric index: increasing (High), stable (Middle) and decreasing (Low). Baseline centering resulted in pattern classification that considered early life growth traits. GA-correction increased the intercepts of preterm-born children trajectories, impacting their pattern classification. Incorporating shape-based clustering, baseline centering and GA-correction in growth patterns analysis improves the identification of subgroups meaningful for public health interventions.
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Affiliation(s)
- Lorena López-Domínguez
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, 1 King's College Circle, Medical Sciences Building, Toronto, ON, M5S 1A8, Canada.,Translational Medicine Program, Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
| | - Diego G Bassani
- Department of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.,Centre for Global Child Health, Child Health Evaluative Sciences, Hospital for Sick Children, Toronto, ON, Canada.,Division of Paediatric Medicine, Hospital for Sick Children, Toronto, ON, Canada
| | - Celine Bourdon
- Translational Medicine Program, Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada.,The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya
| | - Paraskevi Massara
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, 1 King's College Circle, Medical Sciences Building, Toronto, ON, M5S 1A8, Canada.,Translational Medicine Program, Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
| | - Iná S Santos
- Post-Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Alicia Matijasevich
- Post-Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, RS, Brazil.,Departamento de Medicina Preventiva, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Aluísio J D Barros
- Post-Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Elena M Comelli
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, 1 King's College Circle, Medical Sciences Building, Toronto, ON, M5S 1A8, Canada. .,Joannah and Brian Lawson Center for Child Nutrition, University of Toronto, Toronto, ON, Canada.
| | - Robert H J Bandsma
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, 1 King's College Circle, Medical Sciences Building, Toronto, ON, M5S 1A8, Canada. .,Translational Medicine Program, Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada. .,Centre for Global Child Health, Child Health Evaluative Sciences, Hospital for Sick Children, Toronto, ON, Canada. .,Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, ON, Canada.
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19
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Hu G, Ling C, Chi L, Thind MK, Furse S, Koulman A, Swann JR, Lee D, Calon MM, Bourdon C, Versloot CJ, Bakker BM, Gonzales GB, Kim PK, Bandsma RHJ. The role of the tryptophan-NAD + pathway in a mouse model of severe malnutrition induced liver dysfunction. Nat Commun 2022; 13:7576. [PMID: 36481684 PMCID: PMC9732354 DOI: 10.1038/s41467-022-35317-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 11/29/2022] [Indexed: 12/13/2022] Open
Abstract
Mortality in children with severe malnutrition is strongly related to signs of metabolic dysfunction, such as hypoglycemia. Lower circulating tryptophan levels in children with severe malnutrition suggest a possible disturbance in the tryptophan-nicotinamide adenine dinucleotide (TRP-NAD+) pathway and subsequently in NAD+ dependent metabolism regulator sirtuin1 (SIRT1). Here we show that severe malnutrition in weanling mice, induced by 2-weeks of low protein diet feeding from weaning, leads to an impaired TRP-NAD+ pathway with decreased NAD+ levels and affects hepatic mitochondrial turnover and function. We demonstrate that stimulating the TRP-NAD+ pathway with NAD+ precursors improves hepatic mitochondrial and overall metabolic function through SIRT1 modulation. Activating SIRT1 is sufficient to induce improvement in metabolic functions. Our findings indicate that modulating the TRP-NAD+ pathway can improve liver metabolic function in a mouse model of severe malnutrition. These results could lead to the development of new interventions for children with severe malnutrition.
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Affiliation(s)
- Guanlan Hu
- grid.17063.330000 0001 2157 2938Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, M5G 1A8 Toronto, Canada ,grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada
| | - Catriona Ling
- grid.17063.330000 0001 2157 2938Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, M5G 1A8 Toronto, Canada ,grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada
| | - Lijun Chi
- grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada
| | - Mehakpreet K. Thind
- grid.17063.330000 0001 2157 2938Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, M5G 1A8 Toronto, Canada ,grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada
| | - Samuel Furse
- grid.5335.00000000121885934Core Metabolomics and Lipidomics Laboratory, Wellcome Trust-Metabolic Research Laboratories, Institute of Metabolic Sciences, University of Cambridge, CB2 0QQ Cambridge, UK ,grid.4903.e0000 0001 2097 4353Biological Chemistry Group, Royal Botanic Gardens, Kew, Kew Green, TW9 3AE Richmond, UK
| | - Albert Koulman
- grid.5335.00000000121885934Core Metabolomics and Lipidomics Laboratory, Wellcome Trust-Metabolic Research Laboratories, Institute of Metabolic Sciences, University of Cambridge, CB2 0QQ Cambridge, UK
| | - Jonathan R. Swann
- grid.5491.90000 0004 1936 9297School of Human Development and Health, Faculty of Medicine, University of Southampton, SO16 6YD Southampton, UK ,grid.7445.20000 0001 2113 8111Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, SW7 2AZ London, UK
| | - Dorothy Lee
- grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada
| | - Marjolein M. Calon
- grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada
| | - Celine Bourdon
- grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada ,grid.511677.3The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Christian J. Versloot
- grid.4494.d0000 0000 9558 4598Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Barbara M. Bakker
- grid.4494.d0000 0000 9558 4598Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Gerard Bryan Gonzales
- grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada ,grid.4818.50000 0001 0791 5666Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Peter K. Kim
- grid.17063.330000 0001 2157 2938Department of Biochemistry, University of Toronto, M5S 1A8 Toronto, Canada ,grid.42327.300000 0004 0473 9646Cell Biology Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada
| | - Robert H. J. Bandsma
- grid.17063.330000 0001 2157 2938Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, M5G 1A8 Toronto, Canada ,grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada ,grid.511677.3The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya ,grid.4494.d0000 0000 9558 4598Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands ,grid.42327.300000 0004 0473 9646Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, M5G 0A4 Toronto, Canada
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20
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Almaatani D, Zurbau A, Khoshnevisan F, Bandsma RHJ, Khan TA, Sievenpiper JL, Van Den Heuvel M. The association between parents' stress and parental feeding practices and feeding styles: Systematic review and meta-analysis of observational studies. Matern Child Nutr 2022; 19:e13448. [PMID: 36284502 PMCID: PMC9749598 DOI: 10.1111/mcn.13448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 08/31/2022] [Accepted: 09/24/2022] [Indexed: 12/15/2022]
Abstract
In the extended UNICEF framework of early childhood nutrition, parents' stress is associated with parental feeding style. However, no comprehensive review has examined the association between parents' stress and feeding styles and practices. The objective of our review was to synthesise the current literature examining the association between parents' stress and their feeding practices and/or styles, among parents of children ≤ 5 years old. We searched; MEDLINE, EMBASE, PSYCHINFO and CINAHL from 2019 to 2021. Two investigators independently extracted relevant data and assessed the study quality and the certainty of evidence. Data were pooled using generic inverse variance with fixed effects (<5 comparisons) or random effects (≥5 comparisons) and expressed as correlation coefficients with 95% confidence intervals (CI). Between study heterogeneity was assessed using Cochran's Q and quantified with I2 . We identified 6 longitudinal and 11 cross-sectional studies, of which 4 studies provided sufficient data to be pooled. A very small correlation between general stress and restrictive feeding practices was observed (r = 0.06 [95% CI: 0.01-0.12]; no substantial heterogeneity (I2 = 0.00%, PQ < 0.85, very low certainty). No correlation between general stress and feeding pressure was identified (r = 0.06 [95% CI: -0.02 to 0.15]). Results showed that both general and parenting stress were associated with suboptimal breastfeeding practices and unresponsive feeding styles. Conclusion: This study demonstrated a low-to-moderate quality of literature for the inclusion of parents' stress in the extended UNICEF care model of child nutrition. Future research needs to explore this relationship longitudinally and in ethnic diverse populations to inform tailored interventions that promote responsive feeding practices.
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Affiliation(s)
- Dina Almaatani
- Department of Nutritional Sciences, Faculty of MedicineUniversity of TorontoTorontoCanada
| | - Andreea Zurbau
- Department of Nutritional Sciences, Faculty of MedicineUniversity of TorontoTorontoCanada,Toronto 3D Knowledge Synthesis and Clinical Trials Unit, Clinical Nutrition and Risk Factor Modification CentreSt. Michael's HospitalTorontoCanada
| | - Farnaz Khoshnevisan
- Department of Nutritional Sciences, Faculty of MedicineUniversity of TorontoTorontoCanada
| | - Robert H. J. Bandsma
- Department of Nutritional Sciences, Faculty of MedicineUniversity of TorontoTorontoCanada,Department of PaediatricsUniversity of TorontoTorontoCanada,Division of Gastroenterology, Hepatology and NutritionHospital for Sick ChildrenTorontoCanada
| | - Tauseef A. Khan
- Department of Nutritional Sciences, Faculty of MedicineUniversity of TorontoTorontoCanada,Toronto 3D Knowledge Synthesis and Clinical Trials Unit, Clinical Nutrition and Risk Factor Modification CentreSt. Michael's HospitalTorontoCanada
| | - John L. Sievenpiper
- Department of Nutritional Sciences, Faculty of MedicineUniversity of TorontoTorontoCanada,Toronto 3D Knowledge Synthesis and Clinical Trials Unit, Clinical Nutrition and Risk Factor Modification CentreSt. Michael's HospitalTorontoCanada,Department of Medicine, Temerty Faculty of MedicineUniversity of TorontoTorontoOntarioCanada,Department of Medicine, Division of Endocrinology and MetabolismSt. Michael's HospitalTorontoOntarioCanada,Li Ka Shing Knowledge InstituteSt. Michael's HospitalTorontoOntarioCanada
| | - Meta Van Den Heuvel
- Department of PaediatricsUniversity of TorontoTorontoCanada,Division of Paediatric MedicineHospital for Sick ChildrenTorontoCanada
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21
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Diallo AH, Sayeem Bin Shahid ASM, Khan AF, Saleem AF, Singa BO, Gnoumou BS, Tigoi C, Otieno CA, Bourdon C, Oduol CO, Lancioni CL, Manyasi C, McGrath CJ, Maronga C, Lwanga C, Brals D, Ahmed D, Mondal D, Denno DM, Mangale DI, Chimezi E, Mbale E, Mupere E, Mamun GMS, Ouedraogo I, Berkley JA, Njirammadzi J, Mukisa J, Thitiri J, Carreon JD, Walson JL, Jemutai J, Tickell KD, Shahrin L, Mallewa M, Hossain MI, Chisti MJ, Timbwa M, Mburu M, Ngari MM, Ngao N, Aber P, Harawa PP, Sukhtankar P, Bandsma RHJ, Bamouni RM, Molyneux S, Mwaringa S, Shaima SN, Ali SA, Afsana SM, Banu S, Ahmed T, Voskuijl WP, Kazi Z. Childhood mortality during and after acute illness in Africa and south Asia: a prospective cohort study. Lancet Glob Health 2022; 10:e673-e684. [PMID: 35427524 PMCID: PMC9023747 DOI: 10.1016/s2214-109x(22)00118-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/29/2022] [Accepted: 03/04/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Mortality among children with acute illness in low-income and middle-income settings remains unacceptably high and the importance of post-discharge mortality is increasingly recognised. We aimed to explore the epidemiology of deaths among young children with acute illness across sub-Saharan Africa and south Asia to inform the development of interventions and improved guidelines. METHODS In this prospective cohort study, we enrolled children aged 2-23 months with acute illness, stratified by nutritional status defined by anthropometry (ie, no wasting, moderate wasting, or severe wasting or kwashiorkor), who were admitted to one of nine hospitals in six countries across sub-Saharan Africa and south Asia between Nov 20, 2016, and Jan 31, 2019. We assisted sites to comply with national guidelines. Co-primary outcomes were mortality within 30 days of hospital admission and post-discharge mortality within 180 days of hospital discharge. A priori exposure domains, including demographic, clinical, and anthropometric characteristics at hospital admission and discharge, as well as child, caregiver, and household-level characteristics, were examined in regression and survival structural equation models. FINDINGS Of 3101 children (median age 11 months [IQR 7-16]), 1120 (36·1%) had no wasting, 763 (24·6%) had moderate wasting, and 1218 (39·3%) had severe wasting or kwashiorkor. Of 350 (11·3%) deaths overall, 234 (66·9%) occurred within 30 days of hospital admission and 168 (48·0%) within 180 days of hospital discharge. 90 (53·6%) post-discharge deaths occurred at home. The proportion of children who died following discharge was relatively preserved across nutritional strata. Numerically large high-risk and low-risk groups could be disaggregated for early mortality and post-discharge mortality. Structural equation models identified direct pathways to mortality and multiple socioeconomic, clinical, and nutritional domains acting indirectly through anthropometric status. INTERPRETATION Among diverse sites in Africa and south Asia, almost half of mortality occurs following hospital discharge. Despite being highly predictable, these deaths are not addressed in current guidelines. A fundamental shift to a child-centred, risk-based approach to inpatient and post-discharge management is needed to further reduce childhood mortality, and clinical trials of these approaches with outcomes of mortality, readmission, and cost are warranted. FUNDING The Bill & Melinda Gates Foundation.
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22
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Feutz E, Voskuijl W, Finch PJ, Liu TC, Bandsma RHJ, Tarr PI, Moxon CA, VanBuskirk K, Lawrence S, Umutesi G, Tickell KD, Berkley JA, Walson JL, Kamiza S, Denno DM. Minimally Invasive Postmortem Intestinal Tissue Sampling in Malnourished and Acutely Ill Children Is Feasible and Informative. Clin Infect Dis 2021; 73:S382-S389. [PMID: 34910181 PMCID: PMC8672761 DOI: 10.1093/cid/ciab790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Intestinal disorders such as environmental enteric dysfunction (EED) are prevalent in low- and middle-income countries (LMICs) and important contributors to childhood undernutrition and mortality. Autopsies are rarely performed in LMICs but minimally invasive tissue sampling is increasingly deployed as a more feasible and acceptable procedure, although protocols have been devoid of intestinal sampling to date. We sought to determine (1) the feasibility of postmortem intestinal sampling, (2) whether autolysis precludes enteric biopsies' utility, and (3) histopathologic features among children who died during hospitalization with acute illness or undernutrition. METHODS Transabdominal needle and endoscopic forceps upper and lower intestinal sampling were conducted among children aged 1 week to 59 months who died while hospitalized in Blantyre, Malawi. Autolysis ratings were determined for each hematoxylin and eosin slide, and upper and lower intestinal scoring systems were adapted to assess histopathologic features and their severity. RESULTS Endoscopic and transabdominal sampling procedures were attempted in 28 and 14 cases, respectively, with >90% success obtaining targeted tissue. Varying degrees of autolysis were present in all samples and precluded histopathologic scoring of 6% of 122 biopsies. Greater autolysis in duodenal samples was seen with longer postmortem interval (Beta = 0.06, 95% confidence interval, 0.02-0.11). Histopathologic features identified included duodenal Paneth and goblet cell depletion. Acute inflammation was absent but chronic inflammation was prevalent in both upper and lower enteric samples. Severe chronic rectal inflammation was identified in children as young as 5.5 weeks. CONCLUSIONS Minimally invasive postmortem intestinal sampling is feasible and identifies histopathology that can inform mortality contributors.
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Affiliation(s)
- Erika Feutz
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Wieger Voskuijl
- Amsterdam Centre for Global Child Health, Emma Children’s Hospital, Amsterdam University Medical Centres, Amsterdam, The Netherlands
- Amsterdam Institute for Global Health and Development, Amsterdam University Medical Centres, Amsterdam, The Netherlands
- Department of Paediatrics and Child Health, Kamuzu University of Health Sciences, Blantyre, Malawi
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya
| | - Peter J Finch
- Department of Medicine, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Ta-Chiang Liu
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Robert H J Bandsma
- Hospital for Sick Children, Translational Medicine Program and Centre for Global Child Health, Toronto, Canada
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya
| | - Phillip I Tarr
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Christopher Alan Moxon
- Department of Paediatrics and Child Health, Kamuzu University of Health Sciences, Blantyre, Malawi
- Wellcome Centre for Integrative Parasitology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
- Malawi-Liverpool Wellcome Clinical Research Programme, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Kelley VanBuskirk
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Sarah Lawrence
- Department of Pediatrics, University of Washington, Seattle, Washington, USA
| | - Grace Umutesi
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Kirkby D Tickell
- Department of Global Health, University of Washington, Seattle, Washington, USA
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya
- Department of Epidemiology, University of Washington, Seattle, Washington, USA
| | - James A Berkley
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya
- KEMRI-Wellcome Trust Research Programme, Nairobi, Kenya
- Centre for Tropical Medicine & Global Health, University of Oxford, Oxford, UK
| | - Judd L Walson
- Department of Global Health, University of Washington, Seattle, Washington, USA
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya
- Department of Pediatrics, University of Washington, Seattle, Washington, USA
- Department of Epidemiology, University of Washington, Seattle, Washington, USA
- Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Steve Kamiza
- Department of Pathology, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Donna M Denno
- Department of Global Health, University of Washington, Seattle, Washington, USA
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya
- Department of Pediatrics, University of Washington, Seattle, Washington, USA
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23
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Popovic A, Bourdon C, Wang PW, Guttman DS, Soofi S, Bhutta ZA, Bandsma RHJ, Parkinson J, Pell LG. Micronutrient supplements can promote disruptive protozoan and fungal communities in the developing infant gut. Nat Commun 2021; 12:6729. [PMID: 34795270 PMCID: PMC8602372 DOI: 10.1038/s41467-021-27010-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 11/01/2021] [Indexed: 11/14/2022] Open
Abstract
Supplementation with micronutrients, including vitamins, iron and zinc, is a key strategy to alleviate child malnutrition. However, association of gastrointestinal disorders with iron has led to ongoing debate over their administration. To better understand their impact on gut microbiota, we analyse the bacterial, protozoal, fungal and helminth communities of stool samples collected from a subset of 80 children at 12 and 24 months of age, previously enrolled into a large cluster randomized controlled trial of micronutrient supplementation in Pakistan (ClinicalTrials.gov identifier NCT00705445). We show that while bacterial diversity is reduced in supplemented children, vitamins and iron (as well as residence in a rural setting) may promote colonization with distinct protozoa and mucormycetes, whereas the addition of zinc appears to ameliorate this effect. We suggest that the risks and benefits of micronutrient interventions may depend on eukaryotic communities, potentially exacerbated by exposure to a rural setting. Larger studies are needed to evaluate the clinical significance of these findings and their impact on health outcomes.
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Affiliation(s)
- Ana Popovic
- Program in Molecular Medicine, Hospital for Sick Children Research Institute, Toronto, Ontario, Canada
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - Celine Bourdon
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Pauline W Wang
- Department of Cell & Systems Biology, University of Toronto, Toronto, Ontario, Canada
- Centre for the Analysis of Genome Evolution & Function, University of Toronto, Toronto, Ontario, Canada
| | - David S Guttman
- Department of Cell & Systems Biology, University of Toronto, Toronto, Ontario, Canada
- Centre for the Analysis of Genome Evolution & Function, University of Toronto, Toronto, Ontario, Canada
| | - Sajid Soofi
- Center of Excellence in Women and Child Health, The Aga Khan University, Karachi, Pakistan
| | - Zulfiqar A Bhutta
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
- Center of Excellence in Women and Child Health, The Aga Khan University, Karachi, Pakistan
| | - Robert H J Bandsma
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
| | - John Parkinson
- Program in Molecular Medicine, Hospital for Sick Children Research Institute, Toronto, Ontario, Canada.
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada.
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada.
| | - Lisa G Pell
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
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24
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Potani I, Spiegel-Feld C, Brixi G, Bendabenda J, Siegfried N, Bandsma RHJ, Briend A, Daniel AI. Ready-to-Use Therapeutic Food (RUTF) Containing Low or No Dairy Compared to Standard RUTF for Children with Severe Acute Malnutrition: A Systematic Review and Meta-Analysis. Adv Nutr 2021; 12:1930-1943. [PMID: 33838044 PMCID: PMC8483958 DOI: 10.1093/advances/nmab027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 01/19/2021] [Accepted: 02/24/2021] [Indexed: 01/15/2023] Open
Abstract
Ready-to-use therapeutic food (RUTF) containing less dairy may be a lower-cost treatment option for severe acute malnutrition (SAM). The objective was to understand the effectiveness of RUTF containing alternative sources of protein (nondairy), or <50% of protein from dairy products, compared with standard RUTF in children with SAM. The Cochrane Library, MEDLINE, Embase, CINAHL, and Web of Science were searched using terms relating to RUTF. Studies were eligible if they included children with SAM and evaluated RUTF with <50% of protein from dairy products compared with standard RUTF. Meta-analysis and meta-regression were completed to assess the effectiveness of intervention RUTF on a range of child outcomes. The quality of the evidence across outcomes was assessed using the GRADE (Grading of Recommendations Assessment, Development and Evaluation) approach. A total of 5868 studies were identified, of which 8 articles of 6 studies met the inclusion criteria evaluating 7 different intervention RUTF recipes. Nondairy or lower-dairy RUTF showed less weight gain (standardized mean difference: -0.20; 95% CI: -0.26, -0.15; P < 0.001), lower recovery (relative risk ratio: 0.93; 95% CI: 0.87, 1.00; P = 0.046), and lower weight-for-age z scores (WAZ) near program discharge (mean difference: -0.10; 95% CI: -0.20, 0.0; P = 0.047). Mortality, time to recovery, default (consecutive absences from outpatient therapeutic feeding program visits), nonresponse, and other anthropometric measures did not differ between groups. The certainty of evidence was high for weight gain and ranged from very low to moderate for other outcomes. RUTF with lower protein from dairy or dairy-free RUTF may not be as effective as standard RUTF for treatment of children with SAM based on weight gain, recovery, and WAZ evaluated using meta-analysis, although further research is required to explore the potential of alternative formulations. This review was registered at https://www.crd.york.ac.uk/prospero/ as CRD42020160762.
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Affiliation(s)
- Isabel Potani
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
| | - Carolyn Spiegel-Feld
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
| | | | - Jaden Bendabenda
- Department of Nutrition for Health and Development, World Health Organization, Geneva, Switzerland
| | - Nandi Siegfried
- Independent Clinical Epidemiologist, Cape Town, South Africa
| | - Robert H J Bandsma
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
- Department of Biomedical Sciences, College of Medicine, University of Malawi, Blantyre, Malawi
| | - André Briend
- Center for Child Health Research, University of Tampere School of Medicine, Tampere, Finland
- Department of Nutrition, Exercise, and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Allison I Daniel
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
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25
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Wen B, Brals D, Bourdon C, Erdman L, Ngari M, Chimwezi E, Potani I, Thitiri J, Mwalekwa L, Berkley JA, Bandsma RHJ, Voskuijl W. Predicting the risk of mortality during hospitalization in sick severely malnourished children using daily evaluation of key clinical warning signs. BMC Med 2021; 19:222. [PMID: 34538239 PMCID: PMC8451091 DOI: 10.1186/s12916-021-02074-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 07/27/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Despite adherence to WHO guidelines, inpatient mortality among sick children admitted to hospital with complicated severe acute malnutrition (SAM) remains unacceptably high. Several studies have examined risk factors present at admission for mortality. However, risks may evolve during admission with medical and nutritional treatment or deterioration. Currently, no specific guidance exists for assessing daily treatment response. This study aimed to determine the prognostic value of monitoring clinical signs on a daily basis for assessing mortality risk during hospitalization in children with SAM. METHODS This is a secondary analysis of data from a randomized trial (NCT02246296) among 843 hospitalized children with SAM. Daily clinical signs were prospectively collected during ward rounds. Multivariable extended Cox regression using backward feature selection was performed to identify daily clinical warning signs (CWS) associated with time to death within the first 21 days of hospitalization. Predictive models were subsequently developed, and their prognostic performance evaluated using Harrell's concordance index (C-index) and time-dependent area under the curve (tAUC). RESULTS Inpatient case fatality ratio was 16.3% (n=127). The presence of the following CWS during daily assessment were found to be independent predictors of inpatient mortality: symptomatic hypoglycemia, reduced consciousness, chest indrawing, not able to complete feeds, nutritional edema, diarrhea, and fever. Daily risk scores computed using these 7 CWS together with MUAC<10.5cm at admission as additional CWS predict survival outcome of children with SAM with a C-index of 0.81 (95% CI 0.77-0.86). Moreover, counting signs among the top 5 CWS (reduced consciousness, symptomatic hypoglycemia, chest indrawing, not able to complete foods, and MUAC<10.5cm) provided a simpler tool with similar prognostic performance (C-index of 0.79; 95% CI 0.74-0.84). Having 1 or 2 of these CWS on any day during hospitalization was associated with a 3 or 11-fold increased mortality risk compared with no signs, respectively. CONCLUSIONS This study provides evidence for structured monitoring of daily CWS as recommended clinical practice as it improves prediction of inpatient mortality among sick children with complicated SAM. We propose a simple counting-tool to guide healthcare workers to assess treatment response for these children. TRIAL REGISTRATION NCT02246296.
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Affiliation(s)
- Bijun Wen
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada.,Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Canada
| | - Daniella Brals
- Amsterdam Institute for Global Health and Development, Department of Global Health, Amsterdam University Medical Centres, Amsterdam, The Netherlands
| | - Celine Bourdon
- Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Canada.,The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya
| | - Lauren Erdman
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Canada
| | - Moses Ngari
- The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya.,Clinical Research Department, KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | - Emmanuel Chimwezi
- The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya.,Department of Paediatrics, Kamuzu University of Health Sciences, formerly College of Medicine, University of Malawi, Blantyre, Malawi
| | - Isabel Potani
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada.,Department of Paediatrics, Kamuzu University of Health Sciences, formerly College of Medicine, University of Malawi, Blantyre, Malawi
| | - Johnstone Thitiri
- The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya.,Clinical Research Department, KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | - Laura Mwalekwa
- Clinical Research Department, KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya.,Department of Paediatrics, Coast General Hospital, Mombasa, Kenya
| | - James A Berkley
- The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya.,Clinical Research Department, KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya.,Department of Paediatrics, Coast General Hospital, Mombasa, Kenya.,Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Robert H J Bandsma
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada.,Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Canada.,The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya.,Department of Paediatrics, Kamuzu University of Health Sciences, formerly College of Medicine, University of Malawi, Blantyre, Malawi.,Department of Biomedical Sciences, Kamuzu University of Health Sciences, formerly College of Medicine, University of Malawi, Blantyre, Malawi
| | - Wieger Voskuijl
- Amsterdam Institute for Global Health and Development, Department of Global Health, Amsterdam University Medical Centres, Amsterdam, The Netherlands. .,The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya. .,Department of Paediatrics, Kamuzu University of Health Sciences, formerly College of Medicine, University of Malawi, Blantyre, Malawi. .,Amsterdam Center for Global Child Health, Emma Children's Hospital, Amsterdam University Medical Centres, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
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26
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Daniel AI, Bwanali M, Ohuma EO, Bourdon C, Gladstone M, Potani I, Mbale E, Voskuijl W, van den Heuvel M, Bandsma RHJ. Pathways between caregiver body mass index, the home environment, child nutritional status, and development in children with severe acute malnutrition in Malawi. PLoS One 2021; 16:e0255967. [PMID: 34424919 PMCID: PMC8382172 DOI: 10.1371/journal.pone.0255967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 07/22/2021] [Indexed: 11/18/2022] Open
Abstract
Children with severe acute malnutrition (SAM) remain vulnerable after treatment at nutritional rehabilitation units (NRUs). The objective was to assess the concurrent pathways in a hypothesized model between caregiver body mass index (BMI), the home environment, and child nutritional status, and development (gross motor, fine motor, language, and social domains) in children with SAM following discharge from inpatient treatment. Structural equation modelling (SEM) was performed with data from a cluster-randomized controlled trial at the Moyo Nutritional Rehabilitation and Research Unit in Blantyre, Malawi. This approach was undertaken to explore simultaneous relationships between caregiver BMI, the home environment (Home Observation for Measurement of the Environment Inventory scores), child nutritional status (anthropometric indicators including weight-for-age z-scores [WAZ]), and child development (Malawi Developmental Assessment Tool (MDAT) z-scores as a latent variable) in children with SAM. These data were collected at participants' homes six months after discharge from NRU treatment. This analysis included 85 children aged 6-59 months with SAM and their caregivers recruited to the trial at the NRU and followed up successfully six months after discharge. The model with WAZ as the nutritional indicator fit the data according to model fit indices (χ2 = 28.92, p = 0.42). Caregiver BMI was predictive of better home environment scores (β = 0.23, p = 0.03) and child WAZ (β = 0.30, p = 0.005). The home environment scores were positively correlated with MDAT z-scores (β = 0.32, p = 0.001). Child nutritional status based on WAZ was also correlated with MDAT z-scores (β = 0.37, p<0.001). This study demonstrates that caregiver BMI could ultimately relate to child development in children with SAM, through its links to the home environment and child nutritional status.
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Affiliation(s)
- Allison I. Daniel
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Mike Bwanali
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
| | - Eric O. Ohuma
- London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Celine Bourdon
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
| | - Melissa Gladstone
- Department of Women’s and Children’s Health, Institute of Translational Medicine, University of Liverpool, Liverpool, United Kingdom
| | - Isabel Potani
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
| | - Emmie Mbale
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
- Department of Paediatrics, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Wieger Voskuijl
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
- Global Child Health Group, Emma Children’s Hospital, Amsterdam University Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Meta van den Heuvel
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
- Division of Paediatric Medicine, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Robert H. J. Bandsma
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
- Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, Ontario Canada
- Department of Biomedical Sciences, College of Medicine, University of Malawi, Blantyre, Malawi
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Daniel AI, Bwanali M, Tenthani JC, Gladstone M, Voskuijl W, Potani I, Ziwoya F, Chidzalo K, Mbale E, Heath A, Bourdon C, Njirammadzi J, van den Heuvel M, Bandsma RHJ. A Mixed-Methods Cluster-Randomized Controlled Trial of a Hospital-Based Psychosocial Stimulation and Counseling Program for Caregivers and Children with Severe Acute Malnutrition. Curr Dev Nutr 2021; 5:nzab100. [PMID: 34447897 PMCID: PMC8382273 DOI: 10.1093/cdn/nzab100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 06/17/2021] [Accepted: 07/16/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Children with severe acute malnutrition (SAM) who require nutritional rehabilitation unit (NRU) treatment often have poor developmental and nutritional outcomes following discharge. The Kusamala Program is a 4-d hospital-based counseling program for caregivers of children with SAM that integrates nutrition, water, sanitation, and hygiene and psychosocial stimulation, aimed at improving these outcomes. OBJECTIVES The aim was to evaluate the effects of the Kusamala Program on child development and nutritional status in children with SAM 6 mo after NRU discharge. The other aim was to qualitatively understand perceptions and experiences of caregivers who participated in the intervention. METHODS A cluster-randomized controlled trial was conducted with caregivers and their children 6-59 mo of age with SAM admitted to the Moyo NRU in Blantyre, Malawi. The primary outcome of the trial was child development according to Malawi Developmental Assessment Tool (MDAT) composite z-scores of gross motor, fine motor, language, and social domains. A qualitative component with focus group discussions and in-depth interviews was also completed with a subset of caregivers who participated in the trial. RESULTS Sixty-eight caregivers and children were enrolled to clusters by week and randomly assigned to the comparison arm and 104 to the intervention arm. There were no differences in child development, with mean MDAT composite z-scores in the comparison arm of -1.2 (95% CI: -2.1, -0.22) and in the intervention arm of -1.1 (95% CI: -1.9, -0.40) (P = 0.93). The qualitative evaluation with 20 caregivers indicated that the 3 modules of the Kusamala Program were appropriate and that they applied many of the lessons learned at home as much as possible. CONCLUSIONS The Kusamala Program did not result in improved developmental or nutritional outcomes, yet it was viewed positively by caregivers according to qualitative results. Future research should evaluate more intensive interventions for caregivers and children with SAM. This trial was registered at www.clinicaltrials.gov as NCT03072433.
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Affiliation(s)
- Allison I Daniel
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Mike Bwanali
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
| | | | - Melissa Gladstone
- Department of Women's and Children's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, United Kingdom
| | - Wieger Voskuijl
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
- Department of Pediatrics, College of Medicine, University of Malawi, Blantyre, Malawi
- Amsterdam Centre for Global Child Health, Emma Children's Hospital, Amsterdam University Medical Centres, University of Amsterdam, Amsterdam, The Netherlands
| | - Isabel Potani
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
| | - Frank Ziwoya
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
| | - Kate Chidzalo
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
| | - Emmie Mbale
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
- Department of Pediatrics, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Anna Heath
- Child Health Evaluative Sciences, Hospital for Sick Children, Toronto, Ontario, Canada
- Division of Biostatistics, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Department of Statistical Science, University College London, London, United Kingdom
| | - Celine Bourdon
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
| | - Jenala Njirammadzi
- Department of Pediatrics, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Meta van den Heuvel
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
- Division of Pediatric Medicine, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Pediatrics, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Robert H J Bandsma
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Blantyre, Malawi
- Department of Pediatrics, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Department of Biomedical Sciences, College of Medicine, University of Malawi, Blantyre, Malawi
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28
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Daniel AI, Shama S, Ismail S, Bourdon C, Kiss A, Mwangome M, Bandsma RHJ, O'Connor DL. Maternal BMI is positively associated with human milk fat: a systematic review and meta-regression analysis. Am J Clin Nutr 2021; 113:1009-1022. [PMID: 33675341 PMCID: PMC8023843 DOI: 10.1093/ajcn/nqaa410] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 12/08/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Lack of robust estimates of human-milk nutrient composition and influential maternal factors, such as body composition, are barriers to informing nutrition policies and programs. OBJECTIVE The objective was to understand the relation between maternal BMI and human-milk energy, fat, and/or total protein. METHODS Four electronic databases (MEDLINE, Embase, CINAHL, and Web of Science) were searched. Outcomes assessed were human-milk energy (kcal/L), fat (g/L), and total protein (g/L) from mothers 1 to 6 mo postpartum. Studies with data on maternal BMI or weight and height that quantified human-milk energy, fat, or protein between 1 and 6 mo postpartum were eligible. Random-effects meta-regression weighted by the inverse of the study-level SE was completed for each of the 3 outcomes. The certainty of evidence for each outcome was assessed using the GRADE (Grading of Recommendations Assessment, Development, and Evaluation) approach. RESULTS A total of 11,373 titles and abstracts were identified, and after full-text screening, 69 articles of 66 studies were included. Meta-regression results showed a positive association between maternal BMI and human-milk fat (β: 0.56 g/L; 95% CI: 0.034, 1.1; P = 0.04; I2 = 93.7%, n = 63 datapoints). There was no significant association between maternal BMI and human-milk energy (β: 3.9 kcal/L; 95% CI: -1.6, 9.5; P = 0.16, I2 = 93.3%, n = 40 datapoints) or total protein (β: 0.13 g/L; 95% CI: -0.16, 0.41; P = 0.37, I2 = 99.1%, n = 40 datapoints). The certainty of evidence for human-milk energy was low and the certainty of evidence for fat and total protein was very low. CONCLUSIONS Meta-regression analysis of available literature suggested an association between maternal BMI and human-milk fat between 1 and 6 mo postpartum. Future studies are needed to confirm the relation between maternal BMI; variation in human-milk energy, fat, and protein content; and the implications for child growth and development. This review is registered with International Prospective Register of Systematic Reviews (PROSPERO 2018 CRD42018098808) at https://www.crd.york.ac.uk/prospero/.
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Affiliation(s)
- Allison I Daniel
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Sara Shama
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Samantha Ismail
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Celine Bourdon
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Alex Kiss
- Department of Research Design and Biostatistics, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Martha Mwangome
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Kenya Medical Research Institute (KEMRI)/Wellcome Trust Research Program, Kilifi, Kenya
| | - Robert H J Bandsma
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Department of Biomedical Sciences, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Deborah L O'Connor
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
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29
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Kumaran K, Krishnaveni GV, Suryanarayana KG, Prasad MP, Belavendra A, Atkinson S, Balasubramaniam R, Bandsma RHJ, Bhutta ZA, Chandak GR, Comelli EM, Davidge ST, Dennis CL, Hammond GL, Jha P, Joseph KS, Joshi SR, Krishna M, Lee K, Lye S, McGowan P, Nepomnaschy P, Padvetnaya V, Pyne S, Sachdev HS, Sahariah SA, Singhal N, Trasler J, Yajnik CS, Baird J, Barker M, Martin MC, Husain N, Sellen D, Fall CHD, Shah PS, Matthews SG. Protocol for a cluster randomised trial evaluating a multifaceted intervention starting preconceptionally-Early Interventions to Support Trajectories for Healthy Life in India (EINSTEIN): a Healthy Life Trajectories Initiative (HeLTI) Study. BMJ Open 2021; 11:e045862. [PMID: 33593789 PMCID: PMC7888364 DOI: 10.1136/bmjopen-2020-045862] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION The Healthy Life Trajectories Initiative is an international consortium comprising four harmonised but independently powered trials to evaluate whether an integrated intervention starting preconceptionally will reduce non-communicable disease risk in their children. This paper describes the protocol of the India study. METHODS AND ANALYSIS The study set in rural Mysore will recruit ~6000 married women over the age of 18 years. The village-based cluster randomised design has three arms (preconception, pregnancy and control; 35 villages per arm). The longitudinal multifaceted intervention package will be delivered by community health workers and comprise: (1) measures to optimise nutrition; (2) a group parenting programme integrated with cognitive-behavioral therapy; (3) a lifestyle behaviour change intervention to support women to achieve a diverse diet, exclusive breast feeding for the first 6 months, timely introduction of diverse and nutritious infant weaning foods, and adopt appropriate hygiene measures; and (4) the reduction of environmental pollution focusing on indoor air pollution and toxin avoidance.The primary outcome is adiposity in children at age 5 years, measured by fat mass index. We will report on a host of intermediate and process outcomes. We will collect a range of biospecimens including blood, urine, stool and saliva from the mothers, as well as umbilical cord blood, placenta and specimens from the offspring.An intention-to-treat analysis will be adopted to assess the effect of interventions on outcomes. We will also undertake process and economic evaluations to determine scalability and public health translation. ETHICS AND DISSEMINATION The study has been approved by the institutional ethics committee of the lead institute. Findings will be published in peer-reviewed journals. We will interact with policy makers at local, national and international agencies to enable translation. We will also share the findings with the participants and local community through community meetings, newsletters and local radio. TRIAL REGISTRATION NUMBER ISRCTN20161479, CTRI/2020/12/030134; Pre-results.
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Affiliation(s)
- Kalyanaraman Kumaran
- Epidemiology Research Unit, CSI Holdsworth Memorial Hospital, Mysore, Karnataka, India
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | | | - Kumar Gavali Suryanarayana
- Department of Academics and Research, Vivekananda Memorial Hospital, Saragur, Karnataka, India
- Development Support, Swami Vivekananda Youth Movement, Mysore, India
| | - Manohar Prabhu Prasad
- Department of Academics and Research, Vivekananda Memorial Hospital, Saragur, Karnataka, India
| | | | - Stephanie Atkinson
- Department of Paediatrics, McMaster University, Hamilton, Ontario, Canada
| | | | - Robert H J Bandsma
- Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Paediatrics and Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Zulfiqar A Bhutta
- Centre for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences and Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Giriraj Ratan Chandak
- Genomic Research on Complex Diseases, CSIR - Centre for Cellular and Molecular Biology, Hyderabad, Telangana, India
| | - Elena M Comelli
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada
- Joannah and Brian Lawson Centre for Child Nutrition, Toronto, Ontario, Canada
| | - Sandra T Davidge
- Department of Obstetrics & Gynecology, University of Alberta, Edmonton, Alberta, Canada
| | - Cindy-Lee Dennis
- Lawrence S. Bloomberg Faculty of Nursing and Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Geoffrey L Hammond
- Department of Cellular & Physiological Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Prabhat Jha
- Epidemiology Division, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - K S Joseph
- Department of Obstetrics & Gynecology, University of British Columbia, Vancouver, British Columbia, Canada
- School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Sadhana R Joshi
- Nutritional Medicine Division, Interactive Research School for Health Affairs, Bharati Vidyapeeth, Pune, India
| | - Murali Krishna
- Foundation for Research and Advocacy in Mental Health (FRAMe), Mysore, India
| | - Kang Lee
- Department of Applied Psychology and Human Development, OISE/University of Toronto, Toronto, Ontario, Canada
| | - Stephen Lye
- Alliance for Human Development, Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada
- Departments of Obstetrics & Gynecology, Physiology, and Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Patrick McGowan
- Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
| | - Pablo Nepomnaschy
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Vivek Padvetnaya
- Jindal School of Government and Public Policy, O.P. Jindal Global University, Sonipat, Haryana, India
| | - Saumyadipta Pyne
- Public Health Dynamics Lab and Department of Biostatistics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Health Analytics Network, Pennsylvania, Harrisburg, USA
| | - Harshpal Singh Sachdev
- Department of Pediatrics and Clinical Epidemiology, Sitaram Bhartia Institute of Science and Research, New Delhi, India
| | - Sirazul Ameen Sahariah
- Reproductive Maternal Newborn Child and Adolescent Health and Nutrition, MAMTA Health Institute for Mother and Child, New Delhi, Delhi, India
| | - Nalini Singhal
- Department of Paediatrics, University of Calgary, Calgary, Mull, Canada
| | - Jacquetta Trasler
- Departments of Pediatrics, Human Genetics, and Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | | | - Janis Baird
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, Southampton, UK
| | - Mary Barker
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, Southampton, UK
| | - Marie-Claude Martin
- Alliance for Human Development, Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada
| | - Nusrat Husain
- Division of Psychology and Mental Health, University of Manchester, Manchester, UK
| | - Daniel Sellen
- Joannah and Brian Lawson Centre for Child Nutrition, Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada
- Department of Anthropology, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Caroline H D Fall
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - Prakesh S Shah
- Department of Paediatrics, Mount Sinai Hospital, Toronto, Ontario, Canada
- Department of Paediatrics and Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
| | - Stephen G Matthews
- Alliance for Human Development, Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada
- Departments of Obstetrics & Gynecology, Physiology, and Medicine, University of Toronto, Toronto, Ontario, Canada
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Thompson DS, Bourdon C, Massara P, Boyne MS, Forrester TE, Gonzales GB, Bandsma RHJ. Childhood severe acute malnutrition is associated with metabolic changes in adulthood. JCI Insight 2020; 5:141316. [PMID: 33201860 PMCID: PMC7819749 DOI: 10.1172/jci.insight.141316] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 11/11/2020] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Severe acute malnutrition (SAM) is a major contributor to global mortality in children under 5 years. Mortality has decreased; however, the long-term cardiometabolic consequences of SAM and its subtypes, severe wasting (SW) and edematous malnutrition (EM), are not well understood. We evaluated the metabolic profiles of adult SAM survivors using targeted metabolomic analyses. METHODS This cohort study of 122 adult SAM survivors (SW = 69, EM = 53) and 90 age-, sex-, and BMI-matched community participants (CPs) quantified serum metabolites using direct flow injection mass spectrometry combined with reverse-phase liquid chromatography. Univariate and sparse partial least square discriminant analyses (sPLS-DAs) assessed differences in metabolic profiles and identified the most discriminative metabolites. RESULTS Seventy-seven metabolite variables were significant in distinguishing between SAM survivors (28.4 ± 8.8 years, 24.0 ± 6.1 kg/m2) and CPs (28.4 ± 8.9 years, 23.3 ± 4.4 kg/m2) (mean ± SDs) in univariate and sPLS-DA models. Compared with CPs, SAM survivors had less liver fat; higher branched-chain amino acids (BCAAs), urea cycle metabolites, and kynurenine/tryptophan (KT) ratio (P < 0.001); and lower β-hydroxybutyric acid and acylcarnitine/free carnitine ratio (P < 0.001), which were both associated with hepatic steatosis (P < 0.001). SW and EM survivors had similar metabolic profiles as did stunted and nonstunted SAM survivors. CONCLUSION Adult SAM survivors have distinct metabolic profiles that suggest reduced β-oxidation and greater risk of type 2 diabetes (BCAAs, KT ratio, urea cycle metabolites) compared with CPs. This indicates that early childhood SAM exposure has long-term metabolic consequences that may worsen with age and require targeted clinical management. FUNDING Health Research Council of New Zealand, Caribbean Public Health Agency, Centre for Global Child Health at the Hospital for Sick Children. DST is an Academic Fellow and a Restracomp Fellow at the Centre for Global Child Health. GBG is a postdoctoral fellow of the Research Foundation Flanders.
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Affiliation(s)
- Debbie S Thompson
- Translational Medicine Program, Hospital for Sick Children, Toronto, Canada.,Centre for Global Child Health, Hospital for Sick Children, Toronto, Canada.,Caribbean Institute for Health Research, The University of the West Indies, Kingston, Jamaica
| | - Celine Bourdon
- Translational Medicine Program, Hospital for Sick Children, Toronto, Canada.,The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya
| | - Paraskevi Massara
- Translational Medicine Program, Hospital for Sick Children, Toronto, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Michael S Boyne
- Caribbean Institute for Health Research, The University of the West Indies, Kingston, Jamaica.,Department of Medicine, The University of the West Indies, Kingston, Jamaica
| | - Terrence E Forrester
- University of the West Indies Solutions for Developing Countries, Kingston, Jamaica
| | - Gerard Bryan Gonzales
- Translational Medicine Program, Hospital for Sick Children, Toronto, Canada.,Gastroenterology, Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.,Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, the Netherlands
| | - Robert H J Bandsma
- Translational Medicine Program, Hospital for Sick Children, Toronto, Canada.,Centre for Global Child Health, Hospital for Sick Children, Toronto, Canada.,The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada.,Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Canada
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31
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Gonzales GB, Lelijveld N, Bourdon C, Chimwezi E, Nyirenda MJ, Wells JC, Kerac M, Bandsma RHJ. Childhood Malnutrition and Association of Lean Mass with Metabolome and Hormone Profile in Later Life. Nutrients 2020; 12:E3593. [PMID: 33238545 PMCID: PMC7700560 DOI: 10.3390/nu12113593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 11/17/2022] Open
Abstract
This study aimed to determine the associations of targeted metabolomics and hormone profiles data with lean mass index (LMI), which were estimated using bioelectrical impedance, in survivors of child severe malnutrition (SM) (n = 69) and controls (n = 77) in Malawi 7 years after being treated. Linear associations between individual metabolite or hormone and LMI were determined, including their interaction with nutrition status 7 years prior. Path analysis was performed to determine structural associations. Lastly, predictive models for LMI were developed using the metabolome and hormone profile by elastic net regularized regression (EN). Metabolites including several lipids, amino acids, and hormones were individually associated (p < 0.05 after false discovery rate correction) with LMI. However, plasma FGF21 (Control: β = -0.02, p = 0.59; Case: β = -0.14, p < 0.001) and tryptophan (Control: β = 0.15, p = 0.26; Case: β = 0.70, p < 0.001) were associated with LMI among cases but not among controls (both interaction p-values < 0.01). Moreover, path analysis revealed that tryptophan mediates the association between child SM and LMI. EN revealed that most predictors of LMI differed between groups, further indicating altered metabolic mechanisms driving lean mass accretion among SM survivors later in life.
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Affiliation(s)
- Gerard Bryan Gonzales
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, 6708 WE Wageningen, The Netherlands
- Laboratory of Gastroenterology, Department of Internal Medicine and Paediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium
| | | | - Celine Bourdon
- Translational Medicine Program, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; (C.B.); (R.H.J.B.)
- The Childhood Acute Illness & Nutrition Network, Nairobi 43640-00100, Kenya
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON M5S, Canada
| | - Emmanuel Chimwezi
- Malawi-Liverpool Wellcome Trust Clinical Research Programme, University of Malawi College of Medicine, Blantyre, Malawi;
| | | | - Jonathan C. Wells
- Childhood Nutrition Research Centre, Population, Policy and Practice Research and Teaching Department, UCL Great Ormond Street Institute of Child Health, London WC1N 1EH, UK;
| | - Marko Kerac
- Department of Population Health, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK;
| | - Robert H. J. Bandsma
- Translational Medicine Program, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; (C.B.); (R.H.J.B.)
- The Childhood Acute Illness & Nutrition Network, Nairobi 43640-00100, Kenya
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON M5S, Canada
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32
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Ledger E, Harawa PP, Daniel AI, Candler T, Prentice AM, Bandsma RHJ. Dysglycemia in Children with Severe Acute Malnutrition: A Systematic Review and Meta-Analysis. Adv Nutr 2020; 12:959-968. [PMID: 33179024 PMCID: PMC8166557 DOI: 10.1093/advances/nmaa138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 06/05/2020] [Accepted: 09/24/2020] [Indexed: 01/19/2023] Open
Abstract
Dysglycemia is a common complication of severe acute malnutrition (SAM) in children. Its prevalence and impact on short- and long-term outcomes are not well described. This systematic review was undertaken to review the available evidence on dysglycemia (either hypo- or hyperglycemia) in hospitalized children with SAM. The 2 primary objectives of this systematic review were to understand the prevalence of hypoglycemia and hyperglycemia in children with SAM. A secondary objective was to understand the relation between dysglycemia and clinical outcomes like mortality in children with SAM. MEDLINE was searched with terms related to children, SAM, and dysglycemia. A meta-analysis of proportions was completed to determine the hypoglycemia prevalence and a standard meta-analysis was done to determine the relation between hypoglycemia and mortality. The certainty of the evidence was evaluated using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. A total of 2148 articles were identified in the database search of which 16 met the inclusion criteria for the systematic review based on screening done by multiple reviewers. The overall prevalence of hypoglycemia in SAM across studies based on the meta-analysis of proportions was 9% (95% CI: 7%, 12%; I2 = 92%). Meta-analysis results showed that hypoglycemia was associated with a higher chance of mortality during hospitalization in children with SAM (OR: 4.29; 95% CI: 3.04, 6.05; I2 = 0%). According to the GRADE evaluation, the certainty of the evidence for the prevalence of hypoglycemia was low and for hyperglycemia was very low. For the relation between hypoglycemia and mortality, the certainty of the evidence was moderate. A meta-analysis was not carried out for the prevalence of hyperglycemia due to the wide range of definitions used for across studies, but the prevalence ranged from 2% to 38% in the literature. This systematic review highlights the need for further work in this area to include serial glucose measurements to understand the clinical importance of dysglycemia during hospitalization in children with SAM.
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Affiliation(s)
| | - Philliness Prisca Harawa
- Department of Biomedical Sciences, College of Medicine, University of Malawi, Blantyre, Malawi,Malawi-Liverpool Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | - Allison I Daniel
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Canada,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Toby Candler
- Medical Research Council The Gambia at the London School of Hygiene & Tropical Medicine, Keppel Street, London, UK
| | - Andrew M Prentice
- Medical Research Council The Gambia at the London School of Hygiene & Tropical Medicine, Keppel Street, London, UK
| | - Robert H J Bandsma
- Department of Biomedical Sciences, College of Medicine, University of Malawi, Blantyre, Malawi,Centre for Global Child Health, Hospital for Sick Children, Toronto, Canada,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada,The Childhood Acute Illness and Nutrition Network (CHAIN), Nairobi, Kenya
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van den Brink DA, de Meij T, Brals D, Bandsma RHJ, Thitiri J, Ngari M, Mwalekwa L, de Boer NKH, Wicaksono A, Covington JA, van Rheenen PF, Voskuijl WP. Prediction of mortality in severe acute malnutrition in hospitalized children by faecal volatile organic compound analysis: proof of concept. Sci Rep 2020; 10:18785. [PMID: 33154417 PMCID: PMC7645771 DOI: 10.1038/s41598-020-75515-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 09/08/2020] [Indexed: 11/08/2022] Open
Abstract
Children with severe acute malnutrition (SAM) display immature, altered gut microbiota and have a high mortality risk. Faecal volatile organic compounds (VOCs) reflect the microbiota composition and may provide insight into metabolic dysfunction that occurs in SAM. Here we determine whether analysis of faecal VOCs could identify children with SAM with increased risk of mortality. VOC profiles from children who died within six days following admission were compared to those who were discharged alive using machine learning algorithms. VOC profiles of children who died could be separated from those who were discharged with fair accuracy (AUC) = 0.71; 95% CI 0.59-0.87; P = 0.004). We present the first study showing differences in faecal VOC profiles between children with SAM who survived and those who died. VOC analysis holds potential to help discover metabolic pathways within the intestinal microbiome with causal association with mortality and target treatments in children with SAM.Trial Registration: The F75 study is registered at clinicaltrials.gov/ct2/show/NCT02246296.
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Affiliation(s)
- Deborah A van den Brink
- Department of Paediatrics, Centre for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands.
- Amsterdam Centre for Global Child Health, Emma Children's Hospital, Amsterdam University Medical Centres, Amsterdam, The Netherlands.
| | - Tim de Meij
- Department of Paediatric Gastroenterology, Emma, Children's Hospital, Amsterdam University Medical Centres, Amsterdam, The Netherlands
| | - Daniella Brals
- Amsterdam Centre for Global Child Health, Emma Children's Hospital, Amsterdam University Medical Centres, Amsterdam, The Netherlands
- Department of Global Health, Amsterdam Institute for Global Health and Development, Amsterdam University Medical Centres, Amsterdam, The Netherlands
| | - Robert H J Bandsma
- Department of Paediatrics, Centre for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
- Division of Gastroenterology, Hepatology and Nutrition and Translational Medicine Program, Hospital for Sick Children, Toronto, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Department of Biomedical Sciences, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Johnstone Thitiri
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- KEMRI/Welcome Trust Research Programme, Kilifi, Kenya
| | - Moses Ngari
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- KEMRI/Welcome Trust Research Programme, Kilifi, Kenya
| | | | - Nanne K H de Boer
- Department of Gastroenterology and Hepatology, Amsterdam Gastroenterology and Metabolism Research Institute, Amsterdam University Medical Centres, Amsterdam, The Netherlands
| | | | | | - Patrick F van Rheenen
- Department of Paediatrics, Centre for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - Wieger P Voskuijl
- Amsterdam Centre for Global Child Health, Emma Children's Hospital, Amsterdam University Medical Centres, Amsterdam, The Netherlands.
- Department of Global Health, Amsterdam Institute for Global Health and Development, Amsterdam University Medical Centres, Amsterdam, The Netherlands.
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya.
- Department of Paediatrics, College of Medicine, University of Malawi, Blantyre, Malawi.
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Bourdon C, Bartels RH, Chimwezi E, Kool J, Chidzalo K, Perot L, Brals D, Bandsma RHJ, Boele van Hensbroek M, Voskuijl WP. The clinical use of longitudinal bio-electrical impedance vector analysis in assessing stabilization of children with severe acute malnutrition. Clin Nutr 2020; 40:2078-2090. [PMID: 33097306 DOI: 10.1016/j.clnu.2020.09.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 08/31/2020] [Accepted: 09/22/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Severe Acute Malnutrition (SAM) in children is determined using anthropometry. However, bio-electrical impedance (BI) analysis could improve the estimation of altered body composition linked to edema and/or loss of lean body mass in children with SAM. We aimed to assess: 1) the changes in BI parameters during clinical stabilization and 2) whether BI parameters add prognostic value for clinical outcome beyond the use of anthropometry. METHODS This prospective observational study enrolled children, aged 6-60 months, that were admitted at Queen Elizabeth Central Hospital in Blantyre, Malawi, for complicated SAM (i.e., having either severe wasting or edematous SAM with a complicating illness). Height, weight, mid-upper arm circumference (MUAC), and BI were measured on admission and after clinical stabilization. BI measures were derived from height-adjusted indices of resistance (R/H), reactance (Xc/H), and phase angle (PA) and considered to reflect body fluids and soft tissue in BI vector analysis (BIVA). RESULTS We studied 183 children with SAM (55% edematous; age 23.0 ± 12.0 months; 54% male) and 42 community participants (age 20.1 ± 12.3 months; male 62%). Compared to community participants, the BIVA of children with edematous SAM were short with low PA and positioned low on the hydration axis which reflects severe fluid retention. In contrast, children with severe wasting had elongated vectors with a PA that was higher than children with edematous SAM but lower than community participants. Their BIVA position fell within the top right quadrant linked to leanness and dehydration. BIVA from severely wasted and edematous SAM patients differed between groups and from community children both at admission and after stabilization (p < 0.001). Vector position shifted during treatment only in children with edematous SAM (p < 0.001) and showed a upward translation suggestive of fluid loss. While PA was lower in children with SAM, PA did not contribute more than anthropometry alone towards explaining mortality, length of stay, or time-to-discharge or time-to-mortality. The variability and heterogeneity in BI measures was high and their overall added predictive value for prognosis of individual children was low. CONCLUSIONS BIVA did not add prognostic value over using anthropometry alone to predict clinical outcome. Several implementation challenges need to be optimized. Thus, in low-resource settings, the routine use of BI in the management of pediatric malnutrition is questionable without improved implementation.
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Affiliation(s)
- Céline Bourdon
- Translational Medicine Program, The Hospital for Sick Children, Toronto, Canada; The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya
| | - Rosalie H Bartels
- Global Child Health Group, Emma Children's Hospital, Amsterdam University Medical Centres, Amsterdam, the Netherlands; Department of Pediatrics and Child Health, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Emmanuel Chimwezi
- The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya; Department of Pediatrics and Child Health, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Jacintha Kool
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Katherine Chidzalo
- The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya; Department of Pediatrics and Child Health, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Lyric Perot
- Woodrow Wilson School of Public and International Affairs, Princeton University, NJ, USA
| | - Daniella Brals
- Amsterdam Institute for Global Health and Development, Department of Global Health, Amsterdam University Medical Centres, Amsterdam, the Netherlands.
| | - Robert H J Bandsma
- Translational Medicine Program, The Hospital for Sick Children, Toronto, Canada; The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya; Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands; Department of Biomedical Sciences, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Michael Boele van Hensbroek
- Global Child Health Group, Emma Children's Hospital, Amsterdam University Medical Centres, Amsterdam, the Netherlands
| | - Wieger P Voskuijl
- The Childhood Acute Illness & Nutrition Network, Nairobi, Kenya; Global Child Health Group, Emma Children's Hospital, Amsterdam University Medical Centres, Amsterdam, the Netherlands; Department of Pediatrics and Child Health, College of Medicine, University of Malawi, Blantyre, Malawi; Amsterdam Institute for Global Health and Development, Department of Global Health, Amsterdam University Medical Centres, Amsterdam, the Netherlands
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35
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Gonzales GB, Njunge JM, Gichuki BM, Wen B, Potani I, Voskuijl W, Bandsma RHJ, Berkley JA. Plasma proteomics reveals markers of metabolic stress in HIV infected children with severe acute malnutrition. Sci Rep 2020; 10:11235. [PMID: 32641735 PMCID: PMC7343797 DOI: 10.1038/s41598-020-68143-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 06/17/2020] [Indexed: 01/20/2023] Open
Abstract
HIV infection affects up to 30% of children presenting with severe acute malnutrition (SAM) in Africa and is associated with increased mortality. Children with SAM are treated similarly regardless of HIV status, although mechanisms of nutritional recovery in HIV and/or SAM are not well understood. We performed a secondary analysis of a clinical trial and plasma proteomics data among children with complicated SAM in Kenya and Malawi. Compared to children with SAM without HIV (n = 113), HIV-infected children (n = 54) had evidence (false discovery rate (FDR) corrected p < 0.05) of metabolic stress, including enriched pathways related to inflammation and lipid metabolism. Moreover, we observed reduced plasma levels of zinc-α-2-glycoprotein, butyrylcholinesterase, and increased levels of complement C2 resembling findings in metabolic syndrome, diabetes and other non-communicable diseases. HIV was also associated (FDR corrected p < 0.05) with higher plasma levels of inflammatory chemokines. Considering evidence of biomarkers of metabolic stress, it is of potential concern that our current treatment strategy for SAM regardless of HIV status involves a high-fat therapeutic diet. The results of this study suggest a need for clinical trials of therapeutic foods that meet the specific metabolic needs of children with HIV and SAM.
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Affiliation(s)
- Gerard Bryan Gonzales
- Department of Gastroenterology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium. .,VIB Inflammation Research Centre, Ghent, Belgium.
| | - James M Njunge
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya.,KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | - Bonface M Gichuki
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya.,KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | - Bijun Wen
- Centre for Global Child Health, The Hospital for Sick Children, Toronto, ON, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Isabel Potani
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya
| | - Wieger Voskuijl
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya.,Global Child Health Group, Emma Children's Hospital, Amsterdam University Medical Centres, Amsterdam, The Netherlands.,Department of Global Health, Amsterdam Institute for Global Health and Development, Amsterdam University Medical Centres, Amsterdam, The Netherlands
| | - Robert H J Bandsma
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya.,Centre for Global Child Health, The Hospital for Sick Children, Toronto, ON, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - James A Berkley
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya.,KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya.,Nuffield Department of Medicine, Centre for Tropical Medicine & Global Health, University of Oxford, Oxford, UK
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36
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Daniel AI, Chidzalo K, Potani I, Voskuijl W, Gladstone M, van den Heuvel M, Bwanali M, Mbale E, Bandsma RHJ. A quantitative cross-sectional survey of psychosocial stimulation and counselling interventions at nutritional rehabilitation units in Southern Malawi. Malawi Med J 2020; 31:238-243. [PMID: 32128033 PMCID: PMC7036430 DOI: 10.4314/mmj.v31i4.4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Background Inpatient treatment at nutritional rehabilitation units (NRUs) is needed for children who have severe acute malnutrition (SAM) and acute illness, loss of appetite, or severe oedema. World Health Organization guidelines state that nutritional counselling should be done with primary caregivers at NRUs. These recommendations also include psychosocial stimulation interventions to improve developmental outcomes in children with SAM. However, there is limited information about the delivery of these types of interventions for caregivers and children in NRU settings. The primary objective of this research was therefore to obtain data about NRU resources, activities, and protocols relevant to psychosocial stimulation and counselling interventions during inpatient treatment of children with SAM. Methods A cross-sectional survey was administered by interview at all 16 NRUs in seven districts in Southern Malawi. Participants were health workers, nurses, and nutritionists employed at the respective NRUs. Results The response rate was 100% across NRUs. Half of participants said that psychosocial stimulation interventions are conducted at their respective NRUs, yet none of the NRUs have protocols for delivery of these interventions. Furthermore, 7/16 (44%) NRUs have no resources for psychosocial stimulation including play materials. Thirteen of 16 (81%) participants said that they feel this type of intervention is very important and 3/16 (19%) participants said that this somewhat important for children with SAM. All NRUs provide counselling to caregivers about breastfeeding and nutrition; 15/16 (94%) also give counselling about water, sanitation and hygiene. Conclusions Ultimately, results from this survey highlighted that there is a need to invest in comprehensive interventions to improve developmental and nutritional outcomes in these vulnerable children requiring admission to NRUs.
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Affiliation(s)
- Allison I Daniel
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada.,Translational Medicine Program.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Kate Chidzalo
- Department of Paediatrics, College of Medicine, University of Malawi, Blantyre, Malawi.,The Childhood Acute Illness & Nutrition Network (CHAIN), Blantyre, Malawi
| | - Isabel Potani
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Department of Paediatrics, College of Medicine, University of Malawi, Blantyre, Malawi.,The Childhood Acute Illness & Nutrition Network (CHAIN), Blantyre, Malawi
| | - Wieger Voskuijl
- The Childhood Acute Illness & Nutrition Network (CHAIN), Blantyre, Malawi.,Global Child Health Group, Emma Children's Hospital, Amsterdam University Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Melissa Gladstone
- Department of Women's and Children's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, United Kingdom
| | - Meta van den Heuvel
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada.,The Childhood Acute Illness & Nutrition Network (CHAIN), Blantyre, Malawi.,Division of Paediatric Medicine, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, Ontario Canada
| | - Mike Bwanali
- Department of Paediatrics, College of Medicine, University of Malawi, Blantyre, Malawi.,The Childhood Acute Illness & Nutrition Network (CHAIN), Blantyre, Malawi
| | - Emmie Mbale
- Department of Paediatrics, College of Medicine, University of Malawi, Blantyre, Malawi.,The Childhood Acute Illness & Nutrition Network (CHAIN), Blantyre, Malawi
| | - Robert H J Bandsma
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada.,Translational Medicine Program.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,The Childhood Acute Illness & Nutrition Network (CHAIN), Blantyre, Malawi.,Department of Biomedical Sciences, College of Medicine, University of Malawi, Blantyre, Malawi
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37
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Bitilinyu-Bangoh J, Voskuijl W, Thitiri J, Menting S, Verhaar N, Mwalekwa L, de Jong DB, van Loenen M, Mens PF, Berkley JA, Bandsma RHJ, Schallig HDFH. Performance of three rapid diagnostic tests for the detection of Cryptosporidium spp. and Giardia duodenalis in children with severe acute malnutrition and diarrhoea. Infect Dis Poverty 2019; 8:96. [PMID: 31775877 PMCID: PMC6882336 DOI: 10.1186/s40249-019-0609-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 11/14/2019] [Indexed: 02/01/2023] Open
Abstract
Background There is significant need for accurate diagnostic tools for Cryptosporidium spp. and Giardia duodenalis infections in resource limited countries where diarrhoeal disease caused by these parasites is often prevalent. The present study assessed the diagnostic performance of three commercially available rapid diagnostic tests (RDTs) based on faecal-antigen detection for Cryptosporidium spp. and/or G. duodenalis infections in stool samples of children admitted with severe acute malnutrition (SAM) and diarrhoea. An established multiplex PCR was used as reference test. Methods Stool samples from children with SAM and diarrhoea enrolled in a randomized controlled trial (registered at clinicaltrials.gov/ct2/show/NCT02246296) in Malawi (n = 175) and Kenya (n = 120) between December 2014 and December 2015 were analysed by a multiplex PCR for the presence of Cryptosporidium spp., G. duodenalis or Entamoeba histolytica parasite DNA. Cryptosporidium-positive samples were species typed using restriction fragment length polymorphism analysis. A sub-sample of the stool specimens (n = 236) was used for testing with three different RDTs. Diagnostic accuracy of the tests under evaluation was assessed using the results of PCR as reference standard using MedCalc software. Pearson Chi-square test and Fisher’s exact test were used to determine (significant) difference between the number of cryptosporidiosis or giardiasis cases found by PCR in Malawi and Kenya. The overall diagnostic accuracy of each RDT was calculated by plotting a receiver operating characteristic (ROC) curve for each test and to determine the area under the curve (AUC) using SPSS8 software. Results Prevalence of Cryptosporidium spp. by PCR was 20.0 and 21.7% in Malawi and Kenya respectively, mostly C. hominis. G. duodenalis prevalence was 23.4 and 5.8% in Malawi and Kenya respectively. E. histolytica was not detected by PCR. RDT testing followed the same pattern of prevalence. RDT sensitivities ranged for cryptosporidiosis from 42.9 to 76.9% and for G. duodenalis from 48.2 to 85.7%. RDT specificities ranged from 88.4 to 100% for Cryptosporidium spp. and from 91.2 to 99.2% for G. duodenalis infections. Based on the estimated area under the curve (AUC) values, all tests under evaluation had an acceptable overall diagnostic accuracy (> 0.7), with the exception of one RDT for Cryptosporidium spp. in Malawi. Conclusions All three RDTs for Cryptosporidium spp. and Giardia duodenalis evaluated in this study have a moderate sensitivity, but sufficient specificity. The main value of the RDTs is within their rapidness and their usefulness as screening assays in surveys for diarrhoea.
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Affiliation(s)
- Joseph Bitilinyu-Bangoh
- Academic Medical Centre, Department of Medical Microbiology, Parasitology Unit, Amsterdam University Medical Centres, Meibergdreef 9, 1105, AZ, Amsterdam, The Netherlands.,Queen Elizabeth Central Hospital, Blantyre, Malawi
| | - Wieger Voskuijl
- College of Medicine, Department of Paediatrics and Child Health, University of Malawi, Blantyre, Malawi.,Global Child Health Group, Emma Children's Hospital, Amsterdam University Medical Centres, Amsterdam, The Netherlands.,The Childhood Acute Illness and Nutrition Network (CHAIN), Nairobi, Kenya
| | - Johnstone Thitiri
- The Childhood Acute Illness and Nutrition Network (CHAIN), Nairobi, Kenya.,KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | - Sandra Menting
- Academic Medical Centre, Department of Medical Microbiology, Parasitology Unit, Amsterdam University Medical Centres, Meibergdreef 9, 1105, AZ, Amsterdam, The Netherlands
| | - Nienke Verhaar
- Academic Medical Centre, Department of Medical Microbiology, Parasitology Unit, Amsterdam University Medical Centres, Meibergdreef 9, 1105, AZ, Amsterdam, The Netherlands
| | | | - Daisy B de Jong
- Academic Medical Centre, Department of Medical Microbiology, Parasitology Unit, Amsterdam University Medical Centres, Meibergdreef 9, 1105, AZ, Amsterdam, The Netherlands
| | - Merlin van Loenen
- Academic Medical Centre, Department of Medical Microbiology, Parasitology Unit, Amsterdam University Medical Centres, Meibergdreef 9, 1105, AZ, Amsterdam, The Netherlands
| | - Petra F Mens
- Academic Medical Centre, Department of Medical Microbiology, Parasitology Unit, Amsterdam University Medical Centres, Meibergdreef 9, 1105, AZ, Amsterdam, The Netherlands
| | - James A Berkley
- The Childhood Acute Illness and Nutrition Network (CHAIN), Nairobi, Kenya.,KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | - Robert H J Bandsma
- The Childhood Acute Illness and Nutrition Network (CHAIN), Nairobi, Kenya.,Translational Medicine Program, Hospital for Sick Children, Toronto, Canada
| | - Henk D F H Schallig
- Academic Medical Centre, Department of Medical Microbiology, Parasitology Unit, Amsterdam University Medical Centres, Meibergdreef 9, 1105, AZ, Amsterdam, The Netherlands.
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38
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Njunge JM, Gwela A, Kibinge NK, Ngari M, Nyamako L, Nyatichi E, Thitiri J, Gonzales GB, Bandsma RHJ, Walson JL, Gitau EN, Berkley JA. Biomarkers of post-discharge mortality among children with complicated severe acute malnutrition. Sci Rep 2019; 9:5981. [PMID: 30979939 PMCID: PMC6461700 DOI: 10.1038/s41598-019-42436-y] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Accepted: 04/01/2019] [Indexed: 12/22/2022] Open
Abstract
High mortality after discharge from hospital following acute illness has been observed among children with Severe Acute Malnutrition (SAM). However, mechanisms that may be amenable to intervention to reduce risk are unknown. We performed a nested case-control study among HIV-uninfected children aged 2-59 months treated for complicated SAM according to WHO recommendations at four Kenyan hospitals. Blood was drawn from 1778 children when clinically judged stable before discharge from hospital. Cases were children who died within 60 days. Controls were randomly selected children who survived for one year without readmission to hospital. Untargeted proteomics, total protein, cytokines and chemokines, and leptin were assayed in plasma and corresponding biological processes determined. Among 121 cases and 120 controls, increased levels of calprotectin, von Willebrand factor, angiotensinogen, IL8, IL15, IP10, TNFα, and decreased levels of leptin, heparin cofactor 2, and serum paraoxonase were associated with mortality after adjusting for possible confounders. Acute phase responses, cellular responses to lipopolysaccharide, neutrophil responses to bacteria, and endothelial responses were enriched among cases. Among apparently clinically stable children with SAM, a sepsis-like profile is associated with subsequent death. This may be due to ongoing bacterial infection, translocated bacterial products or deranged immune response during nutritional recovery.
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Affiliation(s)
- James M Njunge
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya.
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya.
| | - Agnes Gwela
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | | | - Moses Ngari
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | - Lydia Nyamako
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | - Emily Nyatichi
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | - Johnstone Thitiri
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | - Gerard Bryan Gonzales
- Department of Gastroenterology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
- Inflammation Research Centre, Flemish Institute for Biotechnology, Ghent, Belgium
| | - Robert H J Bandsma
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya
- Centre for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Judd L Walson
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya
- Departments of Global Health, Medicine, Paediatrics and Epidemiology, University of Washington, Seattle, Washington, USA
| | - Evelyn N Gitau
- African Population and Health Research Centre, Nairobi, Kenya
| | - James A Berkley
- The Childhood Acute Illness & Nutrition (CHAIN) Network, Nairobi, Kenya
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
- Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
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Bandsma RHJ, Voskuijl W, Chimwezi E, Fegan G, Briend A, Thitiri J, Ngari M, Mwalekwa L, Bandika V, Ali R, Hamid F, Owor B, Mturi N, Potani I, Allubha B, Muller Kobold AC, Bartels RH, Versloot CJ, Feenstra M, van den Brink DA, van Rheenen PF, Kerac M, Bourdon C, Berkley JA. A reduced-carbohydrate and lactose-free formulation for stabilization among hospitalized children with severe acute malnutrition: A double-blind, randomized controlled trial. PLoS Med 2019; 16:e1002747. [PMID: 30807589 PMCID: PMC6390989 DOI: 10.1371/journal.pmed.1002747] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Accepted: 01/18/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Children with medically complicated severe acute malnutrition (SAM) have high risk of inpatient mortality. Diarrhea, carbohydrate malabsorption, and refeeding syndrome may contribute to early mortality and delayed recovery. We tested the hypothesis that a lactose-free, low-carbohydrate F75 milk would serve to limit these risks, thereby reducing the number of days in the stabilization phase. METHODS AND FINDINGS In a multicenter double-blind trial, hospitalized severely malnourished children were randomized to receive standard formula (F75) or isocaloric modified F75 (mF75) without lactose and with reduced carbohydrate. The primary endpoint was time to stabilization, as defined by the World Health Organization (WHO), with intention-to-treat analysis. Secondary outcomes included in-hospital mortality, diarrhea, and biochemical features of malabsorption and refeeding syndrome. The trial was registered at clinicaltrials.gov (NCT02246296). Four hundred eighteen and 425 severely malnourished children were randomized to F75 and mF75, respectively, with 516 (61%) enrolled in Kenya and 327 (39%) in Malawi. Children with a median age of 16 months were enrolled between 4 December 2014 and 24 December 2015. One hundred ninety-four (46%) children assigned to F75 and 188 (44%) to mF75 had diarrhea at admission. Median time to stabilization was 3 days (IQR 2-5 days), which was similar between randomized groups (0.23 [95% CI -0.13 to 0.60], P = 0.59). There was no evidence of effect modification by diarrhea at admission, age, edema, or HIV status. Thirty-six and 39 children died before stabilization in the F75 and in mF75 arm, respectively (P = 0.84). Cumulative days with diarrhea (P = 0.27), enteral (P = 0.42) or intravenous fluids (P = 0.19), other serious adverse events before stabilization, and serum and stool biochemistry at day 3 did not differ between groups. The main limitation was that the primary outcome of clinical stabilization was based on WHO guidelines, comprising clinical evidence of recovery from acute illness as well as metabolic stabilization evidenced by recovery of appetite. CONCLUSIONS Empirically treating hospitalized severely malnourished children during the stabilization phase with lactose-free, reduced-carbohydrate milk formula did not improve clinical outcomes. The biochemical analyses suggest that the lactose-free formulae may still exceed a carbohydrate load threshold for intestinal absorption, which may limit their usefulness in the context of complicated SAM. TRIAL REGISTRATION ClinicalTrials.gov NCT02246296.
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Affiliation(s)
- Robert H. J. Bandsma
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Canada
- Translational Medicine Program, Hospital for Sick Children, Toronto, Canada
- Center for Global Child Health, Hospital for Sick Children, Toronto, Canada
- Department of Nutrition Sciences, University of Toronto, Toronto, Canada
- University of Groningen, University Medical Center Groningen, Department of Pediatrics, Groningen, the Netherlands
- Department of Biomedical Sciences, College of Medicine, University of Malawi, Blantyre, Malawi
- The Childhood Acute Illness and Nutrition Network (CHAIN), Nairobi, Kenya
| | - Wieger Voskuijl
- The Childhood Acute Illness and Nutrition Network (CHAIN), Nairobi, Kenya
- Department of Paediatrics and Child Health College of Medicine, University of Malawi, Blantyre, Malawi
- Global Child Health Group, Emma Children’s Hospital, Academic Medical Centre, Amsterdam, the Netherlands
| | - Emmanuel Chimwezi
- Department of Paediatrics and Child Health College of Medicine, University of Malawi, Blantyre, Malawi
| | - Greg Fegan
- Swansea Trials Unit, Swansea University Medical School, Swansea, United Kingdom
| | - André Briend
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark
- University of Tampere School of Medicine, Center for Child Health Research, Tampere, Finland
| | | | - Moses Ngari
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | | | - Victor Bandika
- Department of Paediatrics, Coast General Hospital, Mombasa, Kenya
| | - Rehema Ali
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | - Fauzat Hamid
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | - Betty Owor
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | - Neema Mturi
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
| | - Isabel Potani
- Department of Paediatrics and Child Health College of Medicine, University of Malawi, Blantyre, Malawi
| | - Benjamin Allubha
- Department of Paediatrics and Child Health College of Medicine, University of Malawi, Blantyre, Malawi
| | - Anneke C. Muller Kobold
- University of Groningen, University Medical Center Groningen, Department of Laboratory Medicine, Groningen, the Netherlands
| | - Rosalie H. Bartels
- Global Child Health Group, Emma Children’s Hospital, Academic Medical Centre, Amsterdam, the Netherlands
| | - Christian J. Versloot
- University of Groningen, University Medical Center Groningen, Department of Pediatrics, Groningen, the Netherlands
| | - Marjon Feenstra
- University of Groningen, University Medical Center Groningen, Department of Pediatrics, Groningen, the Netherlands
| | - Deborah A. van den Brink
- University of Groningen, University Medical Center Groningen, Department of Pediatrics, Groningen, the Netherlands
| | - Patrick F. van Rheenen
- University of Groningen, University Medical Center Groningen, Department of Pediatrics, Groningen, the Netherlands
| | - Marko Kerac
- London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Celine Bourdon
- Translational Medicine Program, Hospital for Sick Children, Toronto, Canada
- The Childhood Acute Illness and Nutrition Network (CHAIN), Nairobi, Kenya
| | - James A. Berkley
- The Childhood Acute Illness and Nutrition Network (CHAIN), Nairobi, Kenya
- KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
- Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, United Kingdom
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Abstract
BACKGROUND Persistent diarrhoea (PD), defined as diarrhoeal symptoms for longer than 2 weeks, still forms a substantial disease burden in children under 5 years of age. This article provides an overview of the current knowledge of PD and discusses novel concepts. METHODS A literature search on PD was performed which focused on evidence on epidemiology, pathophysiology and management of the disease. RESULTS The prevalence of PD has potentially decreased over the last decades. Debate remains around the role of specific bacterial, viral and parasitic infections with PD. PD is associated with malnutrition and a compromised immune system, including that caused by HIV infection. Management includes fluid resuscitation and improving nutritional status. There is a lack of evidence on the use of antibiotic therapy for PD. There is increasing interest in nutrient-based interventions, including pre- and/or probiotics that can modify the microbiome and thereby potentially prevent or improve the outcome of PD in children. CONCLUSION As PD remains a significant health burden, multicentre clinical trials are needed to inform future treatment guidelines. ABBREVIATIONS PD, persistent diarrhoea; EED, environmental enteric dysfunction; IBD, inflammatory bowel disease; WHO, World Health Organization.
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Affiliation(s)
- Robert H J Bandsma
- a Division of Gastroenterology, Hepatology and Nutrition , Hospital for Sick Children , Toronto , Canada.,b Translational Medicine Program, Hospital for Sick Children , Toronto , Canada.,c Centre for Global Child Health, Hospital for Sick Children , Toronto , Canada.,d Department of Nutrition Sciences , University of Toronto , Toronto , Canada
| | - Kamran Sadiq
- e Department of Paediatrics and Child Health , Aga Khan University , Karachi , Pakistan
| | - Zulfiqar A Bhutta
- c Centre for Global Child Health, Hospital for Sick Children , Toronto , Canada.,d Department of Nutrition Sciences , University of Toronto , Toronto , Canada.,e Department of Paediatrics and Child Health , Aga Khan University , Karachi , Pakistan
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Daniel AI, Chatenga H, Chimera B, Mbale E, Chisala M, Borgstein E, Langton J, Gonzalez C, Bandsma RHJ, Vresk L. The introduction of a paediatric nutrition support program led by a clinical dietitian at a low-resource hospital setting in Malawi. Glob Health Action 2019; 12:1656452. [PMID: 31512960 PMCID: PMC6746265 DOI: 10.1080/16549716.2019.1656452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 08/08/2019] [Indexed: 11/25/2022] Open
Abstract
In low- and middle-income countries, nutrition support strategies are often suboptimal or non-existent in hospital settings. This is further compounded by high rates of malnutrition in these countries. The first four dietitians graduated in Malawi in 2017 providing a new opportunity to build capacity to introduce nutrition support in an acute care setting. A paediatric nutrition support program was implemented at Queen Elizabeth Central Hospital (QECH) in Blantyre, Malawi including the hiring of a local dietitian. This capacity building paper explains the development and introduction of the nutrition support program including a description of perceptions of health professionals at QECH working alongside the dietitian. In the first four months of the program at QECH, the dietitian provided nutrition support to 183 different patients across paediatric wards. Nutritional interventions predominantly included infant formula and breastmilk fortification, provision of therapeutic feeds orally or via nasogastric tubes, increased dietary protein intake for children identified to be at high risk, and nutritional counselling to caregivers. More complex nutritional interventions were also given such as the insertion of gastrostomy tubes to deliver nutrition directly to the stomach. Following the introduction of the program, qualitative interviews were done with health professionals at QECH including nurses (n = 5) and physicians (n = 11). All participants emphasized the importance and impact of the nutrition support program in enhancing the care of hospitalized children, therefore improving outcomes such as tolerability of clinical interventions, decreased duration of stay, and reduced risk of hospital readmission. In conclusion, there is a need for nutrition support provided by a dietitian for different paediatric patients which was corroborated by positive feedback from health professionals at QECH. Integration of dietitians into the healthcare system by respective Ministries of Health will require advocacy around the potential for nutrition support to strengthen the quality of care of vulnerable children. A Chichewa abstract for this paper is available in a supplementary file.
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Affiliation(s)
- Allison I. Daniel
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Humphrey Chatenga
- Department of Paediatrics, Queen Elizabeth Central Hospital, Blantyre, Malawi
| | - Bernadette Chimera
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Emmie Mbale
- Department of Paediatrics, Queen Elizabeth Central Hospital, Blantyre, Malawi
| | - Mphatso Chisala
- Department of Paediatrics, Queen Elizabeth Central Hospital, Blantyre, Malawi
| | - Eric Borgstein
- Department of Paediatrics, Queen Elizabeth Central Hospital, Blantyre, Malawi
- Department of Surgery, College of Medicine, Blantyre, Malawi
| | - Josephine Langton
- Department of Paediatrics, Queen Elizabeth Central Hospital, Blantyre, Malawi
| | - Carmen Gonzalez
- Department of Paediatrics, Queen Elizabeth Central Hospital, Blantyre, Malawi
- Malawi-Liverpool Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | - Robert H. J. Bandsma
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Department of Biomedical Sciences, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Laura Vresk
- Department of Clinical Dietetics, Hospital for Sick Children, Toronto, Ontario, Canada
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Popovic A, Bourdon C, Wang PW, Guttman DS, Voskuijl W, Grigg ME, Bandsma RHJ, Parkinson J. Design and application of a novel two-amplicon approach for defining eukaryotic microbiota. Microbiome 2018; 6:228. [PMID: 30572961 PMCID: PMC6302507 DOI: 10.1186/s40168-018-0612-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 12/03/2018] [Indexed: 05/25/2023]
Abstract
BACKGROUND Due to a lack of systematic diagnostics, our understanding of the diversity and role of eukaryotic microbiota in human health is limited. While studies have shown fungal communities to be significant modulators of human health, information on the prevalence of taxa such as protozoa and helminths has been limited to a small number of species for which targeted molecular diagnostics are available. To probe the diversity of eukaryotic microbes and their relationships with other members of the microbiota, we applied in silico and experimental approaches to design a novel two-amplicon surveillance tool, based on sequencing regions of ribosomal RNA genes and their internal transcribed spacers. We subsequently demonstrated the utility of our approach by characterizing the eukaryotic microbiota of 46 hospitalized Malawian children suffering from Severe Acute Malnutrition (SAM). RESULTS Through in silico analysis and validation on a diverse panel of eukaryotes, we identified 18S rRNA variable genetic regions 4 and 5 (18S V4 V5), together with a region encoding 28S rRNA variable genetic region 2 and the internal transcribed spacers (transITS), as optimal for the systematic classification of eukaryotes. Sequencing of these regions revealed protozoa in all stool samples from children with SAM and helminths in most, including several eukaryotes previously implicated in malnutrition and diarrheal disease. Clinical comparisons revealed no association between protozoan parasites and diarrhea or HIV reactivity. However, the presence of Blastocystis correlated with bacterial alpha diversity and increased abundance of specific taxa, including Sporobacter, Cellulosibacter, Oscillibacter, and Roseburia. CONCLUSION We suggest this novel two-amplicon based strategy will prove an effective tool to deliver new insights into the role of eukaryotic microbiota in health and disease.
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Affiliation(s)
- Ana Popovic
- Program in Molecular Medicine, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON M5G 0A4 Canada
- Department of Biochemistry, University of Toronto, Medical Sciences Building, 1 King’s College Circle Suite 5207, Toronto, ON M5S 1A8 Canada
| | - Celine Bourdon
- Program in Translational Medicine, The Hospital for Sick Children, Peter Gilgan Center for Research and Learning, 686 Bay Street, Toronto, ON M5G 0A4 Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi Coordination Centre, P.O Box 43640-00100, 197 Lenana Place 2nd Floor, Nairobi, Kenya
| | - Pauline W. Wang
- Department of Cell and Systems Biology, University of Toronto, 25 Harbord St, Toronto, ON M5S 3G5 Canada
- Centre for the Analysis of Genome Evolution and Function, University of Toronto, 25 Willcocks St Suite 4038, Toronto, ON M5S 3B2 Canada
| | - David S. Guttman
- Department of Cell and Systems Biology, University of Toronto, 25 Harbord St, Toronto, ON M5S 3G5 Canada
- Centre for the Analysis of Genome Evolution and Function, University of Toronto, 25 Willcocks St Suite 4038, Toronto, ON M5S 3B2 Canada
| | - Wieger Voskuijl
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi Coordination Centre, P.O Box 43640-00100, 197 Lenana Place 2nd Floor, Nairobi, Kenya
- Department of Pediatrics and Child Health, the College of Medicine, University of Malawi, Mahatma Gandhi, Private Bag 360, Chichiri, Blantyre, Malawi
- Global Child Health Group, Emma Children’s Hospital, Academic Medical Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Michael E. Grigg
- Molecular Parasitology Section, Laboratory of Parasitic Diseases, NIAID, National Institutes of Health, 5601 Fishers Lane, MSC 9806, Bethesda, MD 20892-9806 USA
| | - Robert H. J. Bandsma
- Program in Translational Medicine, The Hospital for Sick Children, Peter Gilgan Center for Research and Learning, 686 Bay Street, Toronto, ON M5G 0A4 Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi Coordination Centre, P.O Box 43640-00100, 197 Lenana Place 2nd Floor, Nairobi, Kenya
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, 525 University Avenue, Toronto, ON M5G 2L3 Canada
- Centre for Global Child Health, Hospital for Sick Children, 525 University Avenue Suite 702, Toronto, ON M5G 2L3 Canada
- Department of Nutritional Sciences, University of Toronto, Medical Sciences Building, 1 King’s College Circle Suite 5253A, Toronto, ON M5S 1A8 Canada
- Department of Biomedical Sciences, College of Medicine, University of Malawi, Mahatma Gandhi, Private Bag 360 Chichiri, Blantyre, Malawi
| | - John Parkinson
- Program in Molecular Medicine, The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, Toronto, ON M5G 0A4 Canada
- Department of Biochemistry, University of Toronto, Medical Sciences Building, 1 King’s College Circle Suite 5207, Toronto, ON M5S 1A8 Canada
- Department of Molecular Genetics, University of Toronto, Medical Sciences Building, 1 King’s College Circle Suite 4386, Toronto, ON M5S 1A8 Canada
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Daniel AI, van den Heuvel M, Gladstone M, Bwanali M, Voskuijl W, Bourdon C, Potani I, Fernandes S, Njirammadzi J, Bandsma RHJ. A mixed methods feasibility study of the Kusamala Program at a nutritional rehabilitation unit in Malawi. Pilot Feasibility Stud 2018; 4:151. [PMID: 30258650 PMCID: PMC6151933 DOI: 10.1186/s40814-018-0347-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 09/17/2018] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Children admitted to nutritional rehabilitation units (NRUs) for inpatient treatment of severe acute malnutrition (SAM) are at high risk of poor developmental and nutritional outcomes. The Kusamala Program is an interactive hospital-based counseling program for primary caregivers of children with SAM that integrates three modules: nutrition and feeding; water, sanitation, and hygiene (WASH); and psychosocial stimulation. This mixed methods feasibility study aimed to evaluate the implementation of the Kusamala Program in an NRU setting and developmental outcomes in children with SAM 6 months after inpatient treatment. METHODS An internal pilot trial including the first 30 children and their primary caregivers enrolled to a cluster-randomized controlled trial of the Kusamala Program was performed. Barriers and enablers were identified in a qualitative study with a focus group discussion (FGD) and in-depth interviews (IDIs) with 12 hospital staff members, including five NRU nurses who deliver the Kusamala Program. RESULTS Results demonstrated high participant engagement (100%) and adherence (87%) of primary caregivers to the Kusamala Program. Potential barriers to implementation identified through the qualitative study were caregivers' perceived value of the program, prioritization of other ward activities, and shortages of staff. On the other hand, enablers to implementation were engaging other staff members, motivation and work ethic, and refresher training. CONCLUSIONS This mixed methods study demonstrates the feasibility of implementing the Kusamala Program in a real NRU setting. The full cluster-randomized controlled trial will be completed to evaluate the effectiveness of the Kusamala Program. TRIAL REGISTRATION ClinicalTrials.gov, NCT03072433. Registered on 7 March 2017-retrospectively registered.
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Affiliation(s)
- Allison I Daniel
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario Canada
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario Canada
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario Canada
| | - Meta van den Heuvel
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario Canada
- Division of Paediatric Medicine, Hospital for Sick Children, Toronto, Ontario Canada
- Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, Ontario Canada
| | - Melissa Gladstone
- Department of Women’s and Children’s Health, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Mike Bwanali
- Moyo Nutritional Rehabilitation and Research Unit, Queen Elizabeth Central Hospital, Blantyre, Malawi
| | - Wieger Voskuijl
- Global Child Health Group, Emma Children’s Hospital, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
- Department of Paediatrics and Child Health, College of Medicine, University of Malawi, Blantyre, Malawi
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Celine Bourdon
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Isabel Potani
- Department of Paediatrics and Child Health, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Sara Fernandes
- Department of Women’s and Children’s Health, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Jenala Njirammadzi
- Department of Paediatrics and Child Health, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Robert H J Bandsma
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario Canada
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario Canada
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Department of Biomedical Sciences, College of Medicine, University of Malawi, Blantyre, Malawi
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Dalvi PS, Yang S, Swain N, Kim J, Saha S, Bourdon C, Zhang L, Chami R, Bandsma RHJ. Long-term metabolic effects of malnutrition: Liver steatosis and insulin resistance following early-life protein restriction. PLoS One 2018; 13:e0199916. [PMID: 29965973 PMCID: PMC6028108 DOI: 10.1371/journal.pone.0199916] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 06/15/2018] [Indexed: 02/06/2023] Open
Abstract
Early postnatal-life malnutrition remains prevalent globally, and about 45% of all child deaths are linked to malnutrition. It is not clear whether survivors of childhood malnutrition suffer from long-term metabolic effects, especially when they are later in life exposed to a fat and carbohydrate rich obesogenic diet. The lack of knowledge around this dietary “double burden” warrants studies to understand the long-term consequences of children previously exposed to malnutrition. We hypothesized that an early-life nutritional insult of low protein consumption in mice would lead to long-term metabolic disturbances that would exacerbate the development of diet-induced insulin resistance and non-alcoholic fatty liver disease (NAFLD). We investigated the effects of feeding a low protein diet (4% wt/wt) immediately after weaning for four weeks and subsequent feeding of a high carbohydrate high fat feeding for 16 weeks on metabolic function and development of NAFLD. Mice exposed to early-life protein restriction demonstrated a transient glucose intolerance upon recovery by regular chow diet feeding. However, protein restriction after weaning in mice did not exacerbate an obesogenic diet-induced insulin resistance or progression to NAFLD. These data suggest that transient protein restriction in early-life does not exacerbate an obesogenic diet-induced NAFLD and insulin resistance.
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Affiliation(s)
- Prasad S. Dalvi
- Translational Medicine Research Program, The Hospital for Sick Children, Toronto, ON, Canada
- Morosky College of Health Professions and Sciences, Gannon University, Erie, PA, United States of America
| | - Steven Yang
- Translational Medicine Research Program, The Hospital for Sick Children, Toronto, ON, Canada
| | - Nathan Swain
- Translational Medicine Research Program, The Hospital for Sick Children, Toronto, ON, Canada
| | - Junsoo Kim
- Translational Medicine Research Program, The Hospital for Sick Children, Toronto, ON, Canada
| | - Senjuti Saha
- Translational Medicine Research Program, The Hospital for Sick Children, Toronto, ON, Canada
| | - Celine Bourdon
- Translational Medicine Research Program, The Hospital for Sick Children, Toronto, ON, Canada
| | - Ling Zhang
- Translational Medicine Research Program, The Hospital for Sick Children, Toronto, ON, Canada
| | - Rose Chami
- Department of Laboratory Medicine and Pathology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Department of Pediatric Laboratory Medicine, Hospital for Sick Children, Toronto, ON, Canada
| | - Robert H. J. Bandsma
- Translational Medicine Research Program, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- * E-mail:
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45
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Daniel AI, van den Heuvel M, Voskuijl WP, Gladstone M, Bwanali M, Potani I, Bourdon C, Njirammadzi J, Bandsma RHJ. The Kusamala Program for primary caregivers of children 6-59 months of age hospitalized with severe acute malnutrition in Malawi: study protocol for a cluster-randomized controlled trial. Trials 2017; 18:550. [PMID: 29149905 PMCID: PMC5693531 DOI: 10.1186/s13063-017-2299-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 10/27/2017] [Indexed: 11/16/2022] Open
Abstract
Background Severe acute malnutrition (SAM) is associated with high mortality rates and impairments in growth and development in children that do survive. There are complex nutritional, health, and behavioural risk factors involving severely malnourished children and their primary caregivers, requiring integrated intervention approaches. Methods A cluster-randomized controlled trial at the Queen Elizabeth Central Hospital in Blantyre, Malawi will be conducted to evaluate the effectiveness of a 4-day hospital-based intervention programme directed at primary caregivers. This programme, titled the Kusamala Program, aims to improve developmental and nutritional outcomes in children with SAM. Up to six primary caregivers and their children will be enrolled to groups each week, which will be randomly allocated to intervention or comparison arms. The intervention package consists of interactive counselling on three modules: 1) nutrition and feeding; 2) water, sanitation, and hygiene (WASH); and 3) psychosocial stimulation. Data collection will be performed at enrolment, at discharge from hospital, and at 6 months following discharge. The primary outcome is child development assessed with the Malawi Developmental Assessment Tool (MDAT), a validated measure of gross and fine motor, language, and social development. Discussion This intervention programme is unique because it utilizes primary caregivers’ time spent in-hospital while children receive treatment for SAM. The programme has the potential to be effective in addressing multiple aspects of child, nutrition and development. Trial registration ClinicalTrials.gov, NCT03072433. Registered on 7 March 2017. Electronic supplementary material The online version of this article (doi:10.1186/s13063-017-2299-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Allison I Daniel
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada. .,Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada. .,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
| | - Meta van den Heuvel
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada.,Division of Paediatric Medicine, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Wieger P Voskuijl
- Global Child Health Group, Emma Children's Hospital, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands.,Department of Paediatrics and Child Health, College of Medicine, University of Malawi, Blantyre, Malawi.,The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Melissa Gladstone
- Department of Women's and Children's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Mike Bwanali
- Moyo Nutritional Rehabilitation and Research Unit, Queen Elizabeth Central Hospital, Blantyre, Malawi
| | - Isabel Potani
- Moyo Nutritional Rehabilitation and Research Unit, Queen Elizabeth Central Hospital, Blantyre, Malawi
| | - Celine Bourdon
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada.,The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Jenala Njirammadzi
- Department of Paediatrics and Child Health, College of Medicine, University of Malawi, Blantyre, Malawi.,The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Robert H J Bandsma
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada.,Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya.,Department of Biomedical Sciences, College of Medicine, University of Malawi, Blantyre, Malawi
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Abstract
The main forms of childhood malnutrition occur predominantly in children <5 years of age living in low-income and middle-income countries and include stunting, wasting and kwashiorkor, of which severe wasting and kwashiorkor are commonly referred to as severe acute malnutrition. Here, we use the term 'severe malnutrition' to describe these conditions to better reflect the contributions of chronic poverty, poor living conditions with pervasive deficits in sanitation and hygiene, a high prevalence of infectious diseases and environmental insults, food insecurity, poor maternal and fetal nutritional status and suboptimal nutritional intake in infancy and early childhood. Children with severe malnutrition have an increased risk of serious illness and death, primarily from acute infectious diseases. International growth standards are used for the diagnosis of severe malnutrition and provide therapeutic end points. The early detection of severe wasting and kwashiorkor and outpatient therapy for these conditions using ready-to-use therapeutic foods form the cornerstone of modern therapy, and only a small percentage of children require inpatient care. However, the normalization of physiological and metabolic functions in children with malnutrition is challenging, and children remain at high risk of relapse and death. Further research is urgently needed to improve our understanding of the pathophysiology of severe malnutrition, especially the mechanisms causing kwashiorkor, and to develop new interventions for prevention and treatment.
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Affiliation(s)
- Zulfiqar A Bhutta
- Centre for Global Child Health, Hospital for Sick Children, Peter Gilgan Centre for Research &Learning, 686 Bay Street, Toronto, Ontario, M5G 0A4, Canada
- Center of Excellence in Women and Child Health, Aga Khan University, Karachi, Pakistan
| | - James A Berkley
- Clinical Research Department, KEMRI/Wellcome Trust Research Programme, Kilifi, Kenya
- The Childhood Acute Illness &Nutrition (CHAIN) Network, Nairobi, Kenya
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Robert H J Bandsma
- Centre for Global Child Health, Hospital for Sick Children, Peter Gilgan Centre for Research &Learning, 686 Bay Street, Toronto, Ontario, M5G 0A4, Canada
- The Childhood Acute Illness &Nutrition (CHAIN) Network, Nairobi, Kenya
- Department of Biomedical Sciences, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Marko Kerac
- Department of Population Health, London School of Hygiene &Tropical Medicine, London, UK
| | - Indi Trehan
- Lao Friends Hospital for Children, Luang Prabang, Laos
- Department of Pediatrics, Washington University in St. Louis, St. Louis, Missouri, USA
- Department of Paediatrics and Child Health, University of Malawi, Blantyre, Malawi
| | - André Briend
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
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Versloot CJ, Voskuijl W, van Vliet SJ, van den Heuvel M, Carter JC, Phiri A, Kerac M, Heikens GT, van Rheenen PF, Bandsma RHJ. Effectiveness of three commonly used transition phase diets in the inpatient management of children with severe acute malnutrition: a pilot randomized controlled trial in Malawi. BMC Pediatr 2017; 17:112. [PMID: 28446221 PMCID: PMC5406940 DOI: 10.1186/s12887-017-0860-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Accepted: 04/05/2017] [Indexed: 11/26/2022] Open
Abstract
Background The case fatality rate of severely malnourished children during inpatient treatment is high and mortality is often associated with diarrhea. As intestinal carbohydrate absorption is impaired in severe acute malnutrition (SAM), differences in dietary formulations during nutritional rehabilitation could lead to the development of osmotic diarrhea and subsequently hypovolemia and death. We compared three dietary strategies commonly used during the transition of severely malnourished children to higher caloric feeds, i.e., F100 milk (F100), Ready-to-Use Therapeutic Food (RUTF) and RUTF supplemented with F75 milk (RUTF + F75). Methods In this open-label pilot randomized controlled trial, 74 Malawian children with SAM aged 6–60 months, were assigned to either F100, RUTF or RUTF + F75. Our primary endpoint was the presence of low fecal pH (pH ≤ 5.5) measured in stool collected 3 days after the transition phase diets were introduced. Secondary outcomes were duration of hospital stay, diarrhea and other clinical outcomes. Chi-square test, two-way analysis of variance and logistic regression were conducted and, when appropriate, age, sex and initial weight for height Z-scores were included as covariates. Results The proportion of children with acidic stool (pH ≤5.5) did not significantly differ between groups before discharge with 30, 33 and 23% for F100, RUTF and RUTF + F75, respectively. Mean duration of stay after transitioning was 7.0 days (SD 3.4) with no differences between the three feeding strategies. Diarrhea was present upon admission in 33% of patients and was significantly higher (48%) during the transition phase (p < 0.05). There was no significant difference in mortality (n = 6) between diets during the transition phase nor were there any differences in other secondary outcomes. Conclusions This pilot trial does not demonstrate that a particular transition phase diet is significantly better or worse since biochemical and clinical outcomes in children with SAM did not differ. However, larger and more tightly controlled efficacy studies are needed to confirm these findings. Trial registration ISRCTN13916953 Registered: 14 January 2013.
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Affiliation(s)
- Christian J Versloot
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9700 RB, Groningen, The Netherlands
| | - Wieger Voskuijl
- Department of Pediatrics and Child Health, College of Medicine, Blantyre, Malawi
| | - Sara J van Vliet
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9700 RB, Groningen, The Netherlands
| | - Meta van den Heuvel
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9700 RB, Groningen, The Netherlands
| | - Jane C Carter
- Department of Pediatrics and Child Health, College of Medicine, Blantyre, Malawi
| | - Ajib Phiri
- Department of Pediatrics and Child Health, College of Medicine, Blantyre, Malawi
| | - Marko Kerac
- Department of Population Health, London School of Hygiene and Tropical Medicine, London, UK.,Leonard Cheshire Disability & Inclusive Development Centre, Department of Epidemiology & Public Health, University College London, London, UK
| | - Geert Tom Heikens
- Department of Pediatrics and Child Health, College of Medicine, Blantyre, Malawi
| | - Patrick F van Rheenen
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9700 RB, Groningen, The Netherlands
| | - Robert H J Bandsma
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9700 RB, Groningen, The Netherlands.
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van Zutphen T, Ciapaite J, Bloks VW, Ackereley C, Gerding A, Jurdzinski A, de Moraes RA, Zhang L, Wolters JC, Bischoff R, Wanders RJ, Houten SM, Bronte-Tinkew D, Shatseva T, Lewis GF, Groen AK, Reijngoud DJ, Bakker BM, Jonker JW, Kim PK, Bandsma RHJ. Malnutrition-associated liver steatosis and ATP depletion is caused by peroxisomal and mitochondrial dysfunction. J Hepatol 2016; 65:1198-1208. [PMID: 27312946 DOI: 10.1016/j.jhep.2016.05.046] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 04/15/2016] [Accepted: 05/30/2016] [Indexed: 12/04/2022]
Abstract
BACKGROUND & AIMS Severe malnutrition in young children is associated with signs of hepatic dysfunction such as steatosis and hypoalbuminemia, but its etiology is unknown. Peroxisomes and mitochondria play key roles in various hepatic metabolic functions including lipid metabolism and energy production. To investigate the involvement of these organelles in the mechanisms underlying malnutrition-induced hepatic dysfunction we developed a rat model of malnutrition. METHODS Weanling rats were placed on a low protein or control diet (5% or 20% of calories from protein, respectively) for four weeks. Peroxisomal and mitochondrial structural features were characterized using immunofluorescence and electron microscopy. Mitochondrial function was assessed using high-resolution respirometry. A novel targeted quantitative proteomics method was applied to analyze 47 mitochondrial proteins involved in oxidative phosphorylation, tricarboxylic acid cycle and fatty acid β-oxidation pathways. RESULTS Low protein diet-fed rats developed hypoalbuminemia and hepatic steatosis, consistent with the human phenotype. Hepatic peroxisome content was decreased and metabolomic analysis indicated peroxisomal dysfunction. This was followed by changes in mitochondrial ultrastructure and increased mitochondrial content. Mitochondrial function was impaired due to multiple defects affecting respiratory chain complex I and IV, pyruvate uptake and several β-oxidation enzymes, leading to strongly reduced hepatic ATP levels. Fenofibrate supplementation restored hepatic peroxisome abundance and increased mitochondrial β-oxidation capacity, resulting in reduced steatosis and normalization of ATP and plasma albumin levels. CONCLUSIONS Malnutrition leads to severe impairments in hepatic peroxisomal and mitochondrial function, and hepatic metabolic dysfunction. We discuss the potential future implications of our findings for the clinical management of malnourished children. LAY SUMMARY Severe malnutrition in children is associated with metabolic disturbances that are poorly understood. In order to study this further, we developed a malnutrition animal model and found that severe malnutrition leads to an impaired function of liver mitochondria which are essential for energy production and a loss of peroxisomes, which are important for normal liver metabolic function.
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Affiliation(s)
- Tim van Zutphen
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jolita Ciapaite
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands; Systems Biology Centre for Energy Metabolism and Ageing, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - Vincent W Bloks
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Cameron Ackereley
- Department of Paediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, Canada
| | - Albert Gerding
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Angelika Jurdzinski
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Roberta Allgayer de Moraes
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Ling Zhang
- Physiology and Experimental Medicine Program, Research Institute, The Hospital for Sick Children, Toronto, Canada
| | - Justina C Wolters
- Systems Biology Centre for Energy Metabolism and Ageing, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands; Department of Pharmacy, Analytical Biochemistry, University of Groningen, Groningen, The Netherlands
| | - Rainer Bischoff
- Systems Biology Centre for Energy Metabolism and Ageing, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands; Department of Pharmacy, Analytical Biochemistry, University of Groningen, Groningen, The Netherlands
| | - Ronald J Wanders
- Laboratory Genetic Metabolic Diseases, Departments of Pediatrics and Clinical Chemistry, Academic Medical Center, Amsterdam, The Netherlands (current address: Icahn Institute for Genomics and Multiscale Biology, New York, USA)
| | - Sander M Houten
- Laboratory Genetic Metabolic Diseases, Departments of Pediatrics and Clinical Chemistry, Academic Medical Center, Amsterdam, The Netherlands (current address: Icahn Institute for Genomics and Multiscale Biology, New York, USA)
| | | | - Tatiana Shatseva
- Program in Cell Biology, Hospital for Sick Children, Toronto, Canada
| | - Gary F Lewis
- The Division of Endocrinology and Metabolism, Department of Medicine and the Banting and Best Diabetes Centre, University of Toronto, Toronto, Canada
| | - Albert K Groen
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Dirk-Jan Reijngoud
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Barbara M Bakker
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands; Systems Biology Centre for Energy Metabolism and Ageing, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - Johan W Jonker
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Peter K Kim
- Program in Cell Biology, Hospital for Sick Children, Toronto, Canada; Department of Biochemistry, University of Toronto, Toronto, Canada.
| | - Robert H J Bandsma
- Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands; Physiology and Experimental Medicine Program, Research Institute, The Hospital for Sick Children, Toronto, Canada; Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Canada; Centre for Global Child Health, The Hospital for Sick Children, Toronto, Canada.
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Bartels RH, Meyer SL, Stehmann TA, Bourdon C, Bandsma RHJ, Voskuijl WP. Both Exocrine Pancreatic Insufficiency and Signs of Pancreatic Inflammation Are Prevalent in Children with Complicated Severe Acute Malnutrition: An Observational Study. J Pediatr 2016; 174:165-70. [PMID: 27178623 DOI: 10.1016/j.jpeds.2016.04.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 03/21/2016] [Accepted: 04/06/2016] [Indexed: 02/03/2023]
Abstract
OBJECTIVES To assess whether pancreatic function is impaired in children with severe acute malnutrition, is different between edematous vs nonedematous malnutrition, and improves by nutritional rehabilitation. STUDY DESIGN We followed 89 children with severe acute malnutrition admitted to Queen Elizabeth Central Hospital in Blantyre, Malawi. Stool and blood samples were taken on admission and 3 days after initial stabilization to determine exocrine pancreatic function via fecal elastase-1 (FE-1) and serum trypsinogen and amylase levels. RESULTS A total of 33 children (37.1%) had nonedematous severe acute malnutrition, whereas 56 (62.9%) had edematous severe acute malnutrition. On admission, 92% of patients showed evidence of pancreatic insufficiency as measured by FE-1 <200 μg/g of stool. Patients with edematous severe acute malnutrition were more likely to have low FE-1 (98% vs 82.8%, P = .026). FE-1 levels remained low in these individuals throughout the assessment period. Serum trypsinogen was elevated (>57 ng/mL) in 28% and amylase in 21% (>110 U/L) of children, suggesting pancreatic inflammation. CONCLUSION Exocrine pancreatic insufficiency is prevalent in children with severe acute malnutrition and especially in children with edematous severe acute malnutrition. In addition, biochemical signs suggestive of pancreatitis are common in children with severe acute malnutrition. These results have implications for standard rehabilitation treatment of children with severe acute malnutrition who may benefit from pancreatic enzyme replacement therapy. TRIAL REGISTRATION ISRCTN.com: 13916953.
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Affiliation(s)
- Rosalie H Bartels
- Global Child Health Group, Emma Children's Hospital, Academic Medical Center, Amsterdam, The Netherlands; Department of Pediatrics and Child Health, College of Medicine, University of Malawi, Blantyre, Malawi.
| | - Sophie L Meyer
- University Medical Center Groningen, University of Groningen, The Netherlands
| | - Tijs A Stehmann
- University Medical Center Groningen, University of Groningen, The Netherlands
| | - Céline Bourdon
- Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, University of Toronto, Toronto, Canada
| | - Robert H J Bandsma
- Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, University of Toronto, Toronto, Canada; Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands; Centre for Global Child Health, The Hospital for Sick Children, Toronto, Canada
| | - Wieger P Voskuijl
- Global Child Health Group, Emma Children's Hospital, Academic Medical Center, Amsterdam, The Netherlands; Department of Pediatrics and Child Health, College of Medicine, University of Malawi, Blantyre, Malawi
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50
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Kvissberg MA, Dalvi PS, Kerac M, Voskuijl W, Berkley JA, Priebe MG, Bandsma RHJ. Carbohydrate malabsorption in acutely malnourished children and infants: a systematic review. Nutr Rev 2015; 74:48-58. [PMID: 26578625 PMCID: PMC4684688 DOI: 10.1093/nutrit/nuv058] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 07/12/2015] [Indexed: 11/13/2022] Open
Abstract
CONTEXT Severe acute malnutrition (SAM) accounts for approximately 1 million child deaths per year. High mortality is linked with comorbidities, such as diarrhea and pneumonia. OBJECTIVE The aim of this systematic review was to determine the extent to which carbohydrate malabsorption occurs in children with SAM. DATA SOURCES The PubMed and Embase databases were searched. Reference lists of selected articles were checked. DATA EXTRACTION All observational and controlled intervention studies involving children with SAM in which direct or indirect measures of carbohydrate absorption were analyzed were eligible for inclusion. A total of 20 articles were selected for this review. DATA SYNTHESIS Most studies reported carbohydrate malabsorption, particularly lactose malabsorption, and suggested an increase in diarrhea and reduced weight gain in children on a lactose-containing diet. As most studies reviewed were observational, there was no conclusive scientific evidence of a causal relationship between lactose malabsorption and a worse clinical outcome among malnourished children. CONCLUSION The combined data indicate that carbohydrate malabsorption is prevalent in children with SAM. Additional well-designed intervention studies are needed to determine whether outcomes of SAM complicated by carbohydrate malabsorption could be improved by altering the carbohydrate/lactose content of therapeutic feeds and to elucidate the precise mechanisms involved.
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Affiliation(s)
- Matilda A Kvissberg
- M.A. Kvissberg and R.H. Bandsma are with the Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University Medical Centre Groningen, University of Groningen, The Netherlands. P.S. Dalvi and R.H. Bandsma are with the Physiology and Experimental Medicine Program, Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada. P.S. Dalvi is with the Center for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada. M. Kerac is with the Department of Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom. W. Voskuijl is with the College of Medicine, University of Malawi, Blantyre, Malawi. J.A. Berkley is with the Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom. J.A. Berkley is with the KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya. M.G. Priebe is with the Centre for Medical Biomics, University Medical Centre of Groningen, University of Groningen, The Netherlands. R.H. Bandsma is with the Division of Pediatric Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Canada
| | - Prasad S Dalvi
- M.A. Kvissberg and R.H. Bandsma are with the Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University Medical Centre Groningen, University of Groningen, The Netherlands. P.S. Dalvi and R.H. Bandsma are with the Physiology and Experimental Medicine Program, Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada. P.S. Dalvi is with the Center for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada. M. Kerac is with the Department of Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom. W. Voskuijl is with the College of Medicine, University of Malawi, Blantyre, Malawi. J.A. Berkley is with the Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom. J.A. Berkley is with the KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya. M.G. Priebe is with the Centre for Medical Biomics, University Medical Centre of Groningen, University of Groningen, The Netherlands. R.H. Bandsma is with the Division of Pediatric Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Canada
| | - Marko Kerac
- M.A. Kvissberg and R.H. Bandsma are with the Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University Medical Centre Groningen, University of Groningen, The Netherlands. P.S. Dalvi and R.H. Bandsma are with the Physiology and Experimental Medicine Program, Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada. P.S. Dalvi is with the Center for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada. M. Kerac is with the Department of Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom. W. Voskuijl is with the College of Medicine, University of Malawi, Blantyre, Malawi. J.A. Berkley is with the Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom. J.A. Berkley is with the KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya. M.G. Priebe is with the Centre for Medical Biomics, University Medical Centre of Groningen, University of Groningen, The Netherlands. R.H. Bandsma is with the Division of Pediatric Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Canada
| | - Wieger Voskuijl
- M.A. Kvissberg and R.H. Bandsma are with the Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University Medical Centre Groningen, University of Groningen, The Netherlands. P.S. Dalvi and R.H. Bandsma are with the Physiology and Experimental Medicine Program, Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada. P.S. Dalvi is with the Center for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada. M. Kerac is with the Department of Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom. W. Voskuijl is with the College of Medicine, University of Malawi, Blantyre, Malawi. J.A. Berkley is with the Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom. J.A. Berkley is with the KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya. M.G. Priebe is with the Centre for Medical Biomics, University Medical Centre of Groningen, University of Groningen, The Netherlands. R.H. Bandsma is with the Division of Pediatric Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Canada
| | - James A Berkley
- M.A. Kvissberg and R.H. Bandsma are with the Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University Medical Centre Groningen, University of Groningen, The Netherlands. P.S. Dalvi and R.H. Bandsma are with the Physiology and Experimental Medicine Program, Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada. P.S. Dalvi is with the Center for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada. M. Kerac is with the Department of Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom. W. Voskuijl is with the College of Medicine, University of Malawi, Blantyre, Malawi. J.A. Berkley is with the Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom. J.A. Berkley is with the KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya. M.G. Priebe is with the Centre for Medical Biomics, University Medical Centre of Groningen, University of Groningen, The Netherlands. R.H. Bandsma is with the Division of Pediatric Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Canada
| | - Marion G Priebe
- M.A. Kvissberg and R.H. Bandsma are with the Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University Medical Centre Groningen, University of Groningen, The Netherlands. P.S. Dalvi and R.H. Bandsma are with the Physiology and Experimental Medicine Program, Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada. P.S. Dalvi is with the Center for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada. M. Kerac is with the Department of Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom. W. Voskuijl is with the College of Medicine, University of Malawi, Blantyre, Malawi. J.A. Berkley is with the Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom. J.A. Berkley is with the KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya. M.G. Priebe is with the Centre for Medical Biomics, University Medical Centre of Groningen, University of Groningen, The Netherlands. R.H. Bandsma is with the Division of Pediatric Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Canada
| | - Robert H J Bandsma
- M.A. Kvissberg and R.H. Bandsma are with the Department of Pediatrics, Center for Liver, Digestive and Metabolic Diseases, University Medical Centre Groningen, University of Groningen, The Netherlands. P.S. Dalvi and R.H. Bandsma are with the Physiology and Experimental Medicine Program, Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada. P.S. Dalvi is with the Center for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada. M. Kerac is with the Department of Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom. W. Voskuijl is with the College of Medicine, University of Malawi, Blantyre, Malawi. J.A. Berkley is with the Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom. J.A. Berkley is with the KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya. M.G. Priebe is with the Centre for Medical Biomics, University Medical Centre of Groningen, University of Groningen, The Netherlands. R.H. Bandsma is with the Division of Pediatric Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Canada.
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