1
|
Meek CL. An unwelcome inheritance: childhood obesity after diabetes in pregnancy. Diabetologia 2023; 66:1961-1970. [PMID: 37442824 PMCID: PMC10541526 DOI: 10.1007/s00125-023-05965-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 06/12/2023] [Indexed: 07/15/2023]
Abstract
Diabetes in pregnancy affects 20 million women per year and is associated with increased risk of obesity in offspring, leading to insulin resistance and cardiometabolic disease. Despite the substantial public health ramifications, relatively little is known about the pathophysiological mechanisms underlying obesity in these high-risk children, which creates a barrier to successful intervention. While maternal glucose itself is undeniably a major stimulus upon intrauterine growth, the degree of offspring hyperinsulinism and disturbed lipid metabolism in mothers and offspring are also likely to be implicated in the disease process. The aim of this review is to summarise current understanding of the pathophysiology of childhood obesity after intrauterine exposure to maternal hyperglycaemia and to highlight possible opportunities for intervention. I present here a new unified hypothesis for the pathophysiology of childhood obesity in infants born to mothers with diabetes, which involves self-perpetuating twin cycles of pancreatic beta cell hyperfunction and altered lipid metabolism, both acutely and chronically upregulated by intrauterine exposure to maternal hyperglycaemia.
Collapse
Affiliation(s)
- Claire L Meek
- Wellcome Trust MRC Institute of Metabolic Science, University of Cambridge, Cambridge, UK.
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.
| |
Collapse
|
2
|
Zhang G, Yu H, Yu S, Luo X, Liang Y, Hou L, Wu W. Association of size for gestational age and dehydroepiandrosterone sulfate with cardiometabolic risk in central precocious puberty girls. Front Endocrinol (Lausanne) 2023; 14:1131438. [PMID: 37293501 PMCID: PMC10244634 DOI: 10.3389/fendo.2023.1131438] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 04/28/2023] [Indexed: 06/10/2023] Open
Abstract
Objective The aim of this study was to assess whether size for gestational age and dehydroepiandrosterone sulfate (DHEAS) are associated with cardiometabolic risk in central precocious puberty (CPP) girls. Methods The retrospective study included 443 patients with newly diagnosed CPP. Subjects were categorized by birth weight for gestational age (appropriate [AGA], small [SGA], and large [LGA] for gestational age) and serum DHEAS concentration (high [≥75th percentile] and normal [<75th percentile] DHEAS). Cardiometabolic parameters were examined. Composite cardiometabolic risk (CMR) score was calculated based on BMI, blood pressure, glucose, insulin, triglyceride, and HDL cholesterol. Non-obesity CMR score was computed, omitting the value from BMI. Logistic regression models, general linear models, and partial correlation analyses were used to evaluate associations. Propensity score matching was performed for sensitivity analyses. Results Overall, 309 patients (69.8%) were born AGA, 80 (18.1%) were born SGA, and 54 (12.2%) were born LGA. Compared with AGA counterparts, CPP girls born SGA were more prone to have elevated HbA1c (adjusted OR = 4.54; 95% CI, 1.43-14.42) and low HDL cholesterol (adjusted OR = 2.33; 95% CI, 1.18-4.61). In contrast, being born LGA was not associated with increased risk for any glucose or lipid derangements. Despite the fact that elevated CMR score was more common among individuals born LGA than AGA (adjusted OR = 1.84; 95% CI, 1.07-4.35), no significant difference was found on non-obesity CMR score (adjusted OR = 0.75; 95% CI, 0.30-1.88). When controlling for age, birth weight SDS, and current BMI-SDS, individuals with high DHEAS exhibited higher HDL cholesterol and apolipoprotein A-1 concentrations and lower triglyceride level and non-obesity CMR score. Furthermore, DHEAS correlated positively with HDL cholesterol and apolipoprotein A-1 and negatively with triglyceride, prominently in girls born SGA, after adjustments for the three abovementioned confounders. Sensitivity analyses corroborated the findings. Conclusion Among CPP girls, those born SGA were more likely to possess cardiometabolic risk factors compared to their AGA peers. The difference we observed in cardiometabolic risk between individuals born LGA and AGA was driven by BMI. High DHEAS was associated with favorable lipid profile in CPP girls, even in subjects born SGA.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Wei Wu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
3
|
Stein R, Koutny F, Riedel J, Dörr N, Meyer K, Colombo M, Vogel M, Anderwald CH, Blüher M, Kiess W, Körner A, Weghuber D. Single Point Insulin Sensitivity Estimator (SPISE) As a Prognostic Marker for Emerging Dysglycemia in Children with Overweight or Obesity. Metabolites 2023; 13:metabo13010100. [PMID: 36677025 PMCID: PMC9867183 DOI: 10.3390/metabo13010100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
The single point insulin sensitivity estimator (SPISE) is a recently developed fasting index for insulin sensitivity based on triglycerides, high density lipoprotein cholesterol, and body mass index. SPISE has been validated in juveniles and adults; still, its role during childhood remains unclear. To evaluate the age- and sex-specific distribution of SPISE, its correlation with established fasting indexes and its application as a prognostic marker for future dysglycemia during childhood and adolescence were assessed. We performed linear modeling and correlation analyses on a cross-sectional cohort of 2107 children and adolescents (age 5 to 18.4 years) with overweight or obesity. Furthermore, survival analyses were conducted upon a longitudinal cohort of 591 children with overweight/obesity (1712 observations) with a maximum follow-up time of nearly 20 years, targeting prediabetes/dysglycemia as the end point. The SPISE index decreased significantly with age (−0.34 units per year, p < 0.001) among children and adolescents with overweight and obesity. Sex did not have an influence on SPISE. There was a modest correlation between SPISE and established fasting markers of insulin resistance (R = −0.49 for HOMA-IR, R = −0.55 for QUICKI-IR). SPISE is a better prognostic marker for future dysglycemia (hazard ratio (HR) 3.47, 95% confidence interval (CI) 1.60−7.51, p < 0.01) than HOMA-IR and QUICKI-IR (HR 2.44, 95% CI 1.24−4.81, p < 0.05). The SPISE index is a surrogate marker for insulin resistance predicting emerging dysglycemia in children with overweight or obesity, and could, therefore, be applied to pediatric cohorts that lack direct insulin assessment.
Collapse
Affiliation(s)
- Robert Stein
- Center for Pediatric Research, University Hospital for Children and Adolescents, Medical Faculty, University of Leipzig, 04103 Leipzig, Germany
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG), University Hospital Leipzig, 04103 Leipzig, Germany
| | - Florian Koutny
- Department of Pediatrics, Paracelsus Private Medical University, Muellner Hauptstrasse 48, 5020 Salzburg, Austria
- Department of Gastroenterology, Hepatology and Rheumatology, University Hospital St. Pölten, 3100 St. Pölten, Austria
| | - Johannes Riedel
- Center for Pediatric Research, University Hospital for Children and Adolescents, Medical Faculty, University of Leipzig, 04103 Leipzig, Germany
| | - Natascha Dörr
- Center for Pediatric Research, University Hospital for Children and Adolescents, Medical Faculty, University of Leipzig, 04103 Leipzig, Germany
| | - Klara Meyer
- Center for Pediatric Research, University Hospital for Children and Adolescents, Medical Faculty, University of Leipzig, 04103 Leipzig, Germany
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG), University Hospital Leipzig, 04103 Leipzig, Germany
| | - Marco Colombo
- Center for Pediatric Research, University Hospital for Children and Adolescents, Medical Faculty, University of Leipzig, 04103 Leipzig, Germany
| | - Mandy Vogel
- Leipzig Research Center for Civilization Diseases (LIFE Child), Medical Faculty, University of Leipzig, 04103 Leipzig, Germany
| | - Christian Heinz Anderwald
- Department of Pediatrics, Paracelsus Private Medical University, Muellner Hauptstrasse 48, 5020 Salzburg, Austria
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, 1090 Vienna, Austria
- Health Care Center Arnoldstein, 9601 Arnoldstein, Austria
| | - Matthias Blüher
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG), University Hospital Leipzig, 04103 Leipzig, Germany
| | - Wieland Kiess
- Center for Pediatric Research, University Hospital for Children and Adolescents, Medical Faculty, University of Leipzig, 04103 Leipzig, Germany
- Leipzig Research Center for Civilization Diseases (LIFE Child), Medical Faculty, University of Leipzig, 04103 Leipzig, Germany
| | - Antje Körner
- Center for Pediatric Research, University Hospital for Children and Adolescents, Medical Faculty, University of Leipzig, 04103 Leipzig, Germany
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG), University Hospital Leipzig, 04103 Leipzig, Germany
- Leipzig Research Center for Civilization Diseases (LIFE Child), Medical Faculty, University of Leipzig, 04103 Leipzig, Germany
| | - Daniel Weghuber
- Department of Pediatrics, Paracelsus Private Medical University, Muellner Hauptstrasse 48, 5020 Salzburg, Austria
- Correspondence:
| |
Collapse
|
4
|
Blasetti A, Quarta A, Guarino M, Cicolini I, Iannucci D, Giannini C, Chiarelli F. Role of Prenatal Nutrition in the Development of Insulin Resistance in Children. Nutrients 2022; 15:nu15010087. [PMID: 36615744 PMCID: PMC9824240 DOI: 10.3390/nu15010087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/13/2022] [Accepted: 12/19/2022] [Indexed: 12/28/2022] Open
Abstract
Nutrition during the prenatal period is crucial for the development of insulin resistance (IR) and its consequences in children. The relationship between intrauterine environment, fetal nutrition and the onset of IR, type 2 diabetes (T2D), obesity and metabolic syndrome later in life has been confirmed in many studies. The intake of carbohydrates, protein, fat and micronutrients during pregnancy seems to damage fetal metabolism programming; indeed, epigenetic mechanisms change glucose-insulin metabolism. Intrauterine growth restriction (IUGR) induced by unbalanced nutrient intake during prenatal life cause fetal adipose tissue and pancreatic beta-cell dysfunction. In this review we have summarized and discussed the role of maternal nutrition in preventing insulin resistance in youth.
Collapse
|
5
|
Richter LR, Albert BI, Zhang L, Ostropolets A, Zitsman JL, Fennoy I, Albers DJ, Hripcsak G. Data assimilation on mechanistic models of glucose metabolism predicts glycemic states in adolescents following bariatric surgery. Front Physiol 2022; 13:923704. [PMID: 36518108 PMCID: PMC9744230 DOI: 10.3389/fphys.2022.923704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 10/11/2022] [Indexed: 11/29/2022] Open
Abstract
Type 2 diabetes mellitus is a complex and under-treated disorder closely intertwined with obesity. Adolescents with severe obesity and type 2 diabetes have a more aggressive disease compared to adults, with a rapid decline in pancreatic β cell function and increased incidence of comorbidities. Given the relative paucity of pharmacotherapies, bariatric surgery has become increasingly used as a therapeutic option. However, subsets of this population have sub-optimal outcomes with either inadequate weight loss or little improvement in disease. Predicting which patients will benefit from surgery is a difficult task and detailed physiological characteristics of patients who do not respond to treatment are generally unknown. Identifying physiological predictors of surgical response therefore has the potential to reveal both novel phenotypes of disease as well as therapeutic targets. We leverage data assimilation paired with mechanistic models of glucose metabolism to estimate pre-operative physiological states of bariatric surgery patients, thereby identifying latent phenotypes of impaired glucose metabolism. Specifically, maximal insulin secretion capacity, σ, and insulin sensitivity, SI, differentiate aberrations in glucose metabolism underlying an individual's disease. Using multivariable logistic regression, we combine clinical data with data assimilation to predict post-operative glycemic outcomes at 12 months. Models using data assimilation sans insulin had comparable performance to models using oral glucose tolerance test glucose and insulin. Our best performing models used data assimilation and had an area under the receiver operating characteristic curve of 0.77 (95% confidence interval 0.7665, 0.7734) and mean average precision of 0.6258 (0.6206, 0.6311). We show that data assimilation extracts knowledge from mechanistic models of glucose metabolism to infer future glycemic states from limited clinical data. This method can provide a pathway to predict long-term, post-surgical glycemic states by estimating the contributions of insulin resistance and limitations of insulin secretion to pre-operative glucose metabolism.
Collapse
Affiliation(s)
- Lauren R. Richter
- Department of Biomedical Informatics, Columbia University Irving Medical Center, New York, NY, United States
| | - Benjamin I. Albert
- Department of Biomedical Informatics, Columbia University Irving Medical Center, New York, NY, United States
| | - Linying Zhang
- Department of Biomedical Informatics, Columbia University Irving Medical Center, New York, NY, United States
| | - Anna Ostropolets
- Department of Biomedical Informatics, Columbia University Irving Medical Center, New York, NY, United States
| | - Jeffrey L. Zitsman
- Division of Pediatric Surgery, Department of Surgery, Columbia University Irving Medical Center, New York, NY, United States
| | - Ilene Fennoy
- Division of Pediatric Endocrinology, Metabolism, and Diabetes, Department of Pediatrics, Columbia University Irving Medical Center, New York, NY, United States
| | - David J. Albers
- Department of Biomedical Informatics, Columbia University Irving Medical Center, New York, NY, United States,Department of Bioengineering, University of Colorado Anschutz Medical Campus, Aurora, CO, United States,Department of Biomedical Informatics, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - George Hripcsak
- Department of Biomedical Informatics, Columbia University Irving Medical Center, New York, NY, United States,*Correspondence: George Hripcsak,
| |
Collapse
|
6
|
Tagi VM, Samvelyan S, Chiarelli F. An update of the consensus statement on insulin resistance in children 2010. Front Endocrinol (Lausanne) 2022; 13:1061524. [PMID: 36465645 PMCID: PMC9709113 DOI: 10.3389/fendo.2022.1061524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 10/14/2022] [Indexed: 11/17/2022] Open
Abstract
In our modern society, where highly palatable and calorie-rich foods are readily available, and sedentary lifestyle is common among children and adolescents, we face the pandemic of obesity, nonalcoholic fatty liver disease, hypertension, atherosclerosis, and T2D. Insulin resistance (IR) is known to be the main underlying mechanism of all these associated health consequences; therefore, the early detection of IR is fundamental for preventing them.A Consensus Statement, internationally supported by all the major scientific societies in pediatric endocrinology, was published in 2010, providing all the most recent reliable evidence to identify the definition of IR in children, its measurement, its risk factors, and the effective strategies to prevent and treat it. However, the 2010 Consensus concluded that further research was necessary to assess some of the discussed points, in particular the best way to measure insulin sensitivity, standardization of insulin measurements, identification of strong surrogate biomarkers of IR, and the effective role of lifestyle intervention and medications in the prevention and treatment of IR.The aim of this review is to update each point of the consensus with the most recent available studies, with the goal of giving a picture of the current state of the scientific literature regarding IR in children, with a particular regard for issues that are not yet fully clarified.
Collapse
Affiliation(s)
- Veronica Maria Tagi
- Department of Pediatrics, University of Chieti, Chieti, Italy
- *Correspondence: Veronica Maria Tagi,
| | | | | |
Collapse
|
7
|
Tarçın G, Karakaş H, Şahin S, Turan H, Yıldız M, Özer Y, Haşlak F, Bingöl Aydın D, Adroviç A, Barut K, Kasapçopur Ö, Ercan O. Insulin resistance in children with juvenile systemic lupus erythematosus and ınvestigation of the possibly responsible factors. Clin Rheumatol 2021; 41:795-801. [PMID: 34617197 DOI: 10.1007/s10067-021-05952-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 09/06/2021] [Accepted: 09/30/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Insulin resistance (IR) has been described in adults with systemic lupus erythematosus (SLE), though its mechanism has not been fully clarified. In this study, it was aimed to investigate insulin sensitivity for the first time in children with juvenile SLE (jSLE) by considering the effect of the already known contributing factors of IR. METHOD This is a cross-sectional study including 43 patients with jSLE and the same number of healthy controls matched for age, gender, pubertal stage, body mass index, and physical activity level. IR, as calculated by both homeostatic model assessment for insulin resistance (HOMA-IR) and a relatively new method, triglyceride glucose (TyG) index, was compared between the patients and their matched controls, also among the patients stratified by disease duration, corticosteroid use, and disease activity. RESULTS Insulin resistance in the patient group was higher than the controls according to both HOMA-IR and TyG index (p < 0.001 for both). In the patient group, no significant effect of disease duration, corticosteroid use, disease activity, and levels of anti-dsDNA, anti-cardiolipin IgM, anti-cardiolipin IgG, C3, and C4 on IR was demonstrated. CONCLUSION Children with jSLE were found to have higher IR even after neutralizing the effects of the contributing factors which are expected to aggravate IR. This elevation in IR in jSLE seems not to be associated with corticosteroid use, disease duration, disease activity, or autoantibody levels. Thus, the presence of IR in jSLE cannot be explained solely with neither the already known contributing factors nor the increased inflammation of the disease. Key Points • In this study, insulin sensitivity was investigated for the first time in children with jSLE. • Children with jSLE have higher insulin resistance than healthy ones. • Insulin resistance in children with jSLE is independent of corticosteroid use, disease duration, disease activity or autoantibody, and complement levels.
Collapse
Affiliation(s)
- Gürkan Tarçın
- Department of Pediatric Endocrinology, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Hasan Karakaş
- Department of Pediatrics, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Sezgin Şahin
- Department of Pediatric Rheumatology, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Hande Turan
- Department of Pediatric Endocrinology, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Mehmet Yıldız
- Department of Pediatric Rheumatology, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Yavuz Özer
- Department of Pediatric Endocrinology, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Fatih Haşlak
- Department of Pediatric Rheumatology, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Dilek Bingöl Aydın
- Department of Pediatric Endocrinology, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Amra Adroviç
- Department of Pediatric Rheumatology, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Kenan Barut
- Department of Pediatric Rheumatology, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Özgür Kasapçopur
- Department of Pediatric Rheumatology, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Oya Ercan
- Department of Pediatric Endocrinology, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey.
| |
Collapse
|
8
|
Sharma VR, Matta ST, Haymond MW, Chung ST. Measuring Insulin Resistance in Humans. Horm Res Paediatr 2021; 93:577-588. [PMID: 33934092 PMCID: PMC8162778 DOI: 10.1159/000515462] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 02/25/2021] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Insulin resistance is a pathophysiological condition associated with diabetes and cardiometabolic diseases that is characterized by a diminished tissue response to insulin action. Our understanding of this complex phenomenon and its role in the pathogenesis of cardiometabolic diseases is rooted in the discovery of insulin, its isolation and purification, and the challenges encountered with its therapeutic use. SUMMARY In this historical perspective, we explore the evolution of the term "insulin resistance" and demonstrate how advances in insulin and glucose analytics contributed to the recognition and validation of this metabolic entity. We identify primary discoveries which were pivotal in expanding our knowledge of insulin resistance, the challenges in measurement and interpretation, contemporary techniques, and areas of future exploration. Key Message: Measurements of insulin resistance are important tools for defining and treating cardiometabolic diseases. Accurate quantification of this pathophysiological entity requires careful consideration of the assumptions and pitfalls of the methodological techniques and the historical and clinical context when interpreting and applying the results.
Collapse
Affiliation(s)
- Vandhna R. Sharma
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Samantha T. Matta
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | | | - Stephanie T. Chung
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA,*Stephanie T. Chung,
| |
Collapse
|
9
|
Glucose and lipid metabolism disorders in children and adolescents with spinal muscular atrophy types 2 and 3. Neuromuscul Disord 2021; 31:291-299. [PMID: 33685840 DOI: 10.1016/j.nmd.2021.02.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/20/2021] [Accepted: 02/01/2021] [Indexed: 12/25/2022]
Abstract
We aimed to estimate the prevalence of glucose and lipid metabolism disorders in children and adolescents with spinal muscular atrophy (SMA) types 2 and 3. A cross-sectional study was conducted. Medical history, anthropometric measurements, pubertal status, blood chemistry (glucose and insulin levels, lipid profile, aminotransferases, and hemoglobin A1c [HbA1c]), and liver ultrasound were obtained in all patients. Oral glucose tolerance test was performed in those with body mass index (BMI) >25th percentile or glucose or HbA1c levels in the prediabetic range. A total of 37 patients with SMA (22 type 2, 15 type 3) with a median age of 8.5 years (range 2-18.9 years) were included. Eleven patients (29.7%) met the criteria for prediabetes, but none had overt type 2 diabetes. Dyslipidemia was detected in 11 patients (29.7%), and 4 (10.8%) had hepatic steatosis on ultrasound. Sixteen patients (43.2%) had at least one abnormal finding (prediabetes, dyslipidemia, or hepatic steatosis); all but one were non-ambulatory and 12 (75%) had BMI ≥85th percentile. One young child developed fasting hypoglycemia. Our results suggest that non-ambulatory overweight/obese SMA patients are particularly prone to abnormalities in glucose and lipid metabolism. Young underweight patients might develop fasting hypoglycemia.
Collapse
|
10
|
Vizzuso S, Del Torto A, Dilillo D, Calcaterra V, Di Profio E, Leone A, Gilardini L, Bertoli S, Battezzati A, Zuccotti GV, Verduci E. Visceral Adiposity Index (VAI) in Children and Adolescents with Obesity: No Association with Daily Energy Intake but Promising Tool to Identify Metabolic Syndrome (MetS). Nutrients 2021; 13:nu13020413. [PMID: 33525454 PMCID: PMC7911630 DOI: 10.3390/nu13020413] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/24/2021] [Accepted: 01/26/2021] [Indexed: 12/16/2022] Open
Abstract
(1) Background. Visceral adiposity index (VAI) has been recently identified as a new cardiometabolic risk marker reflecting abdominal fat distribution and dyslipidaemia. The aim of the present paper was to evaluate the relationship between VAI, daily energy intake and metabolic syndrome (MetS) in a cohort of obese Caucasian children and adolescents, aged 8 to 15 years. (2) Methods. Consecutive Italian children and adolescents with obesity, according to World Health Organization were enrolled. Anthropometric parameters and blood pressure were measured. Fasting blood samples have been analyzed for lipids, insulin and glucose levels. MetS was diagnosed using identification and prevention of dietary- and lifestyle-induced health effects in children and infants (IDEFICS) or International Diabetes Federation (IDF) criteria according to age. Homeostatic model assessment index (HOMA-IR), quantitative insulin sensitivity check index (QUICKI), A body shape index (ABSI) and VAI were calculated. Multivariable logistic regression analyses with sex, age and each anthropometric parameter (body mass index (BMI) z-score, ABSI, waist-to-height ratio (WHR)) or VAI was performed to predict MetS. Receiver operation curve (ROC) analysis was used to define the optimal VAI cut-off to identify MetS. Multiple regression was performed to predict the BMI z-score and VAI from daily energy intake after adjusting for age and sex. (3) Results. Six hundred and thirty-seven (313 boys and 324 girls) children and adolescents with obesity with median age 11 (interquartile range 10–13) years were included in the analysis. MetS was diagnosed in 79 patients. VAI correlated with BMI, WHR, ABSI, HOMA-IR, QUICKI, systolic blood pressure, low- and high-density lipoprotein cholesterol, triglycerides and triglycerides-to-HDL ratio (p < 0.050). Optimal VAI cut-off (AUC) values to identify MetS were 1.775 (0.774), 1.685 (0.776) and 1.875 (0.797) in the whole population, boys and girls, respectively. Energy intake was positively associated with BMI z-score but no association was found with VAI. (4) Conclusion. VAI is a promising tool to identify MetS in children and adolescents with obesity and should be used in the management of abdominal obesity together with dietary assessment.
Collapse
Affiliation(s)
- Sara Vizzuso
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, University of Milan, 20154 Milan, Italy; (D.D.); (V.C.); (G.V.Z.); (E.V.)
- Correspondence:
| | | | - Dario Dilillo
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, University of Milan, 20154 Milan, Italy; (D.D.); (V.C.); (G.V.Z.); (E.V.)
| | - Valeria Calcaterra
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, University of Milan, 20154 Milan, Italy; (D.D.); (V.C.); (G.V.Z.); (E.V.)
- Pediatric and Adolescent Unit, Department of Internal Medicine, University of Pavia, 27100 Pavia, Italy
| | | | - Alessandro Leone
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Sandro Botticelli 21, 20133 Milan, Italy; (A.L.); (S.B.); (A.B.)
| | - Luisa Gilardini
- Istituto Auxologico Italiano, IRCCS, Lab of Nutrition and Obesity Research, 20145 Milan, Italy;
| | - Simona Bertoli
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Sandro Botticelli 21, 20133 Milan, Italy; (A.L.); (S.B.); (A.B.)
- Istituto Auxologico Italiano, IRCCS, Lab of Nutrition and Obesity Research, 20145 Milan, Italy;
| | - Alberto Battezzati
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Sandro Botticelli 21, 20133 Milan, Italy; (A.L.); (S.B.); (A.B.)
| | - Gian Vincenzo Zuccotti
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, University of Milan, 20154 Milan, Italy; (D.D.); (V.C.); (G.V.Z.); (E.V.)
| | - Elvira Verduci
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, University of Milan, 20154 Milan, Italy; (D.D.); (V.C.); (G.V.Z.); (E.V.)
- Department of Health Sciences, University of Milan, 20154 Milan, Italy
| |
Collapse
|
11
|
Chung ST, Matta ST, Meyers AG, Cravalho CK, Villalobos-Perez A, Dawson JM, Sharma VR, Sampson ML, Otvos JD, Magge SN. Nuclear Magnetic Resonance Derived Biomarkers for Evaluating Cardiometabolic Risk in Youth and Young Adults Across the Spectrum of Glucose Tolerance. Front Endocrinol (Lausanne) 2021; 12:665292. [PMID: 34084151 PMCID: PMC8167058 DOI: 10.3389/fendo.2021.665292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 04/08/2021] [Indexed: 12/17/2022] Open
Abstract
UNLABELLED Youth with obesity have an increased risk for cardiometabolic disease, but identifying those at highest risk remains a challenge. Four biomarkers that might serve this purpose are "by products" of clinical NMR LipoProfile® lipid testing: LPIR (Lipoprotein Insulin Resistance Index), GlycA (inflammation marker), BCAA (total branched-chain amino acids), and glycine. All are strongly related to insulin resistance and type 2 diabetes (T2DM) in adults (glycine inversely) and are independent of biological and methodological variations in insulin assays. However, their clinical utility in youth is unclear. We compared fasting levels of these biomarkers in 186 youth (42 lean normal glucose tolerant (NGT), 88 obese NGT, 23 with prediabetes (PreDM), and 33 with T2DM. All four biomarkers were associated with obesity and glycemia in youth. LPIR and GlycA were highest in youth with PreDM and T2DM, whereas glycine was lowest in youth with T2DM. While all four were correlated with HOMA-IR (Homeostatic Model Assessment for Insulin Resistance), LPIR had the strongest correlation (LPIR: r = 0.6; GlycA: r = 0.4, glycine: r = -0.4, BCAA: r = 0.2, all P < 0.01). All four markers correlated with HbA1c (LPIR, GlycA, BCAA: r ≥ 0.3 and glycine: r = -0.3, all P < 0.001). In multi-variable regression models, LPIR, GlycA, and glycine were independently associated with HOMA-IR (Adjusted R2 = 0.473, P < 0.001) and LPIR, glycine, and BCAA were independently associated with HbA1c (Adjusted R2 = 0.33, P < 0.001). An LPIR index of >44 was associated with elevated blood pressure, BMI, and dyslipidemia. Plasma NMR-derived markers were related to adverse markers of cardiometabolic risk in youth. LPIR, either alone or in combination with GlycA, should be explored as a non-insulin dependent predictive tool for development of insulin resistance and diabetes in youth. CLINICAL TRIAL REGISTRATION Clinicaltrials.gov, identifier NCT:02960659.
Collapse
Affiliation(s)
- Stephanie T. Chung
- Diabetes, Endocrinology and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
- *Correspondence: Stephanie T. Chung,
| | - Samantha T. Matta
- Diabetes, Endocrinology and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Abby G. Meyers
- Department of Endocrinology and Diabetes, Children’s National Hospital, Washington, DC, United States
| | - Celeste K. Cravalho
- Diabetes, Endocrinology and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Alfredo Villalobos-Perez
- Diabetes, Endocrinology and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Joshua M. Dawson
- Diabetes, Endocrinology and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Vandhna R. Sharma
- Diabetes, Endocrinology and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Maureen L. Sampson
- National Institutes of Health Clinical Center, National Institutes of Health, Bethesda, MD, United States
| | - James D. Otvos
- Laboratory Corporation of America Holdings (LabCorp), Morrisville, NC, United States
| | - Sheela N. Magge
- Division of Pediatric Endocrinology and Diabetes, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| |
Collapse
|
12
|
Marigliano M, Schutz Y, Piona C, Tomasselli F, Tommasi M, Corradi M, Olivieri F, Fornari E, Morandi A, Maffeis C. 13C/ 12C breath test ratio after the ingestion of a meal naturally enriched with ( 13C)carbohydrates is a surrogate marker of insulin resistance and insulin sensitivity in children and adolescents with Type 1 Diabetes. Diabetes Res Clin Pract 2020; 169:108447. [PMID: 32949654 DOI: 10.1016/j.diabres.2020.108447] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 09/02/2020] [Accepted: 09/11/2020] [Indexed: 01/11/2023]
Abstract
AIMS To test the hypotheses that exogenous carbohydrate oxidation affects postprandial glycaemic profiles and 13C/12C breath test could be used for estimating insulin resistance (IR) and insulin sensitivity (IS) in youths with Type 1 Diabetes (T1D). METHODS Non-randomized, cross-sectional study for repeated measures; fifteen youths (11-15 years) with T1D were enrolled. Respiratory exchanges were measured by indirect calorimetry after the ingestion of a mixed meal [13% protein, 29% fat, 58% carbohydrate (CHO; naturally enriched with [13C]carbohydrates)]. Total and exogenous CHOs oxidation was calculated by indirect calorimetry and 13C/12C breath test. IR and IS were calculated using estimated Glucose Disposal Rate (eGDR) and Insulin Sensitivity Score (ISS). RESULTS The blood glucose Area Under the Curve (BG-AUC) was significantly associated with the amount of exogenous CHOs oxidized (r = -0.67, p < 0.02) when adjusting for CHOs intake and %fat mass. A direct correlation between eGDR and ISS with exogenous CHOs oxidized (r = 0.70, p < 0.02; r = 0.61, p < 0.05 respectively) and with the differential of 13C/12C enrichment in the expired at breath test (r = 0.59, p < 0.05; r = 0.62, p < 0.05), was found. CONCLUSIONS Assessing the capacity to oxidize exogenous CHOs (estimated by the differential of 13C/12C enrichment in the expired air at the breath test) could be used as a non-invasive surrogate marker of IR and IS in youths with T1D.
Collapse
Affiliation(s)
- Marco Marigliano
- Pediatric Diabetes and Metabolic Disorders Unit, University of Verona, Verona, Italy.
| | - Yves Schutz
- Department of Endocrinology, Metabolism and Cardiovascular System, Faculty of Sciences and Medicine, University of Fribourg, Fribourg, Switzerland
| | - Claudia Piona
- Pediatric Diabetes and Metabolic Disorders Unit, University of Verona, Verona, Italy
| | - Francesca Tomasselli
- Pediatric Diabetes and Metabolic Disorders Unit, University of Verona, Verona, Italy
| | - Mara Tommasi
- Pediatric Diabetes and Metabolic Disorders Unit, University of Verona, Verona, Italy
| | - Massimiliano Corradi
- Pediatric Diabetes and Metabolic Disorders Unit, University of Verona, Verona, Italy
| | - Francesca Olivieri
- Pediatric Diabetes and Metabolic Disorders Unit, University of Verona, Verona, Italy
| | - Elena Fornari
- Pediatric Diabetes and Metabolic Disorders Unit, University of Verona, Verona, Italy
| | - Anita Morandi
- Pediatric Diabetes and Metabolic Disorders Unit, University of Verona, Verona, Italy
| | - Claudio Maffeis
- Pediatric Diabetes and Metabolic Disorders Unit, University of Verona, Verona, Italy
| |
Collapse
|
13
|
Cominetti O, Hosking J, Jeffery A, Pinkney J, Martin FP. Contributions of Fat and Carbohydrate Metabolism to Glucose Homeostasis in Childhood Change With Age and Puberty: A 12-Years Cohort Study (EARLYBIRD 77). Front Nutr 2020; 7:139. [PMID: 32984398 PMCID: PMC7483556 DOI: 10.3389/fnut.2020.00139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/17/2020] [Indexed: 12/22/2022] Open
Abstract
Puberty-a period when susceptibility to the onset of Type 2 diabetes (T2D) increases-is marked with profound physiological and metabolic changes. In the EarlyBird cohort, children who developed impaired fasting glycemia in adolescence already exhibited higher fasting blood glucose at 5 years of age, independent of their body mass index (BMI), suggesting that pubertal factors may modify existing predisposition. Understanding how the physiological changes during childhood influence glucose homeostasis and how the central energy metabolism may help deciphering the mechanisms that underlie the risk of developing T2D in children and adults. We investigated these associations by analyzing glycemic variations with molecular markers of central energy metabolism, substrate oxidation status and pubertal stages in the EarlyBird cohort. The EarlyBird study is a non-interventional, prospective cohort study, that recruited 307 healthy UK children at age 5, and followed them annually throughout childhood for 12 years. Longitudinal data on blood biochemistry, respiratory exchange ratio, and anthropometry, available from 150 children were integrated with fasting glycemia. The gradual rise in blood glucose during childhood associates with age-dependent changes in molecular processes and substrate oxidation status, namely (i) greater pre-pubertal fat utilization, ketogenesis, and fatty acid oxidation, and (ii) greater pubertal carbohydrate oxidation and glycolytic metabolism (Cori and Cahill Cycles) associated with different amino acid exchanges between muscle and other tissues (proline, glutamine, alanine). Since children's metabolic and nutritional requirements evolve during childhood, this study has potential clinical implications for the development of nutritional strategies for disease prevention in children.
Collapse
Affiliation(s)
- Ornella Cominetti
- Nestlé Institute of Food Safety & Analytical Sciences, Nestlé Research, Lausanne, Switzerland
| | - Joanne Hosking
- Faculty of Medicine and Dentistry, Plymouth University, Plymouth, United Kingdom
| | - Alison Jeffery
- Faculty of Medicine and Dentistry, Plymouth University, Plymouth, United Kingdom
| | - Jonathan Pinkney
- Faculty of Medicine and Dentistry, Plymouth University, Plymouth, United Kingdom
| | | |
Collapse
|
14
|
Vizzuso S, Amatruda M, Del Torto A, D’Auria E, Ippolito G, Zuccotti GV, Verduci E. Is Macronutrients Intake a Challenge for Cardiometabolic Risk in Obese Adolescents? Nutrients 2020; 12:nu12061785. [PMID: 32560039 PMCID: PMC7353408 DOI: 10.3390/nu12061785] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 06/07/2020] [Accepted: 06/15/2020] [Indexed: 12/29/2022] Open
Abstract
(1) Background: Pediatric obesity is an emerging public health issue, mainly related to western diet. A cross-sectional study was conducted to explore the association between macronutrients intake and cardiometabolic risk factors in obese adolescents. (2) Methods: Ninety-three Italian obese adolescents were recruited; anthropometric parameters, body composition, glucose and lipid metabolism profiles were measured. Macronutrients intake was estimated by a software-assisted analysis of a 120-item frequency questionnaire. The association between macronutrients and cardiometabolic risk factors was assessed by bivariate correlation, and multiple regression analysis was used to adjust for confounders such as age and sex. (3) Results: By multiple regression analysis, we found that higher energy and lower carbohydrate intakes predicted higher body mass index (BMI) z-score, p = 0.005, and higher saturated fats intake and higher age predicted higher HOmeostasis Model Assessment of insulin resistance (HOMA-IR) and lower QUantitative Insulin-sensitivity ChecK (QUICK) index, p = 0.001. In addition, a saturated fats intake <7% was associated with normal HOMA-IR, and a higher total fats intake predicted a higher HOMA of percent β-cell function (HOMA-β), p = 0.011. (4) Conclusions: Higher energy intake and lower carbohydrate dietary intake predicted higher BMI z-score after adjustment for age and sex. Higher total and saturated fats dietary intakes predicted insulin resistance, even after adjustment for confounding factors. A dietary pattern including appropriate high-quality carbohydrate and reduced saturated fat intakes could result in reduced cardiometabolic risk in obese adolescents.
Collapse
Affiliation(s)
- Sara Vizzuso
- Department of Health Sciences, University of Milan, 20133 Milan, Italy; (S.V.); (M.A.); (G.I.)
| | - Matilde Amatruda
- Department of Health Sciences, University of Milan, 20133 Milan, Italy; (S.V.); (M.A.); (G.I.)
| | | | - Enza D’Auria
- Department of Pediatrics, Vittore Buzzi Children’s Hospital University of Milan, 20154 Milan, Italy; (E.D.); (G.V.Z.)
| | - Giulio Ippolito
- Department of Health Sciences, University of Milan, 20133 Milan, Italy; (S.V.); (M.A.); (G.I.)
| | - Gian Vincenzo Zuccotti
- Department of Pediatrics, Vittore Buzzi Children’s Hospital University of Milan, 20154 Milan, Italy; (E.D.); (G.V.Z.)
| | - Elvira Verduci
- Department of Health Sciences, University of Milan, 20133 Milan, Italy; (S.V.); (M.A.); (G.I.)
- Department of Pediatrics, Vittore Buzzi Children’s Hospital University of Milan, 20154 Milan, Italy; (E.D.); (G.V.Z.)
- Correspondence:
| |
Collapse
|
15
|
Usefulness of surrogate markers to determine insulin action in fat cells. Int J Obes (Lond) 2020; 44:2436-2443. [PMID: 32398753 DOI: 10.1038/s41366-020-0592-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 04/02/2020] [Accepted: 04/29/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Obesity is a major factor behind insulin resistance. The validity of simple biochemical surrogate measures to estimate insulin resistance at the fat cell level is unclear. OBJECTIVE To investigate if the surrogate measures HOMA-IR (glucose/insulin product) and Adipo-IR (fatty acids/insulin product) reflect insulin action on glucose/lipid metabolism in fat cells. DESIGN Insulin-induced lipogenesis and lipolysis inhibition (antilipolysis) in subcutaneous fat cells were investigated for sensitivity (reflecting receptor-near events) and responsiveness (i.e., maximum action reflecting distal post-receptor events) in 363 subjects. Results were compared with log10 transformed values for HOMA-IR and Adipo-IR. RESULTS Individually, the four measures of in vitro insulin action on fat cells correlated significantly (p < 0.0001) but weakly with each other (adjusted r2 0.05-0.23). HOMA-IR and Adipo-IR correlated strongly with each other (adjusted r2 = 0.81). Using Spearman or simple linear regression all in vitro measures except antilipolytic responsiveness expressed per lipid weight, correlated significantly with Adipo-IR or HOMA-IR (p values <0.0001). Similar relationships remained after combined correction for age, body mass index and sex. Together, the four in vitro measures explained 50% of the variability in HOMA-IR and ADIPO-IR (p < 0.0001). Receiver-operating characteristic analysis showed good sensitivity and specificity for Adipo-IR and HOMA-IR to detect combined insulin resistance of antilipolysis and lipogenesis in fat cells (area under the curve = 0.8). CONCLUSIONS Insulin action at the receptor and post-receptor levels on lipolysis and lipogenesis in fat cells correlates significantly with Adipo-IR and HOMA-IR. Both surrogate measures give similar information about insulin resistance of glucose and lipid metabolism in fat cells.
Collapse
|
16
|
Peña A, Olson ML, Soltero EG, Lee C, Toledo MJ, Ayers SL, Shaibi GQ. Evaluating a pragmatic estimate of insulin sensitivity in Latino youth with obesity. Clin Obes 2020; 10:e12353. [PMID: 31962378 PMCID: PMC9275660 DOI: 10.1111/cob.12353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 01/03/2020] [Indexed: 11/26/2022]
Abstract
The whole-body insulin sensitivity index (WBISI) is a widely used surrogate of insulin sensitivity estimated from glucose and insulin concentrations during an oral glucose tolerance test (OGTT). The original WBISI uses five timepoints but reduced sampling models have been proposed. These reduced models have not been applied to the paediatric population. The purpose of this study is to compare cross-sectional agreement and changes in response to lifestyle intervention between the original WBISI and the WBISI120 using fasting and 2-hour glucose and insulin concentrations from OGTT among Latino adolescents with obesity. We also examined the cost-differential between the two measures. Secondary analyses were conducted with data from Latino adolescents (14-16 years) with obesity (BMI ≥ 95th percentile) who were recruited for a randomized controlled lifestyle intervention trial. Baseline data in youth (n = 148) who underwent a 2-hour OGTT was used to analyse agreement between WBISI and WBISI120 . Data from 65 participants who completed a 12-week lifestyle intervention were used to assess changes and the rate of change between WBISI and WBISI120 . Research costs to determine both measures were compared. WBISI120 showed good cross-sectional agreement (ICCagreement = 0.88) with the full WBISI. Following intervention, WBISI120 increased 62.5% (M ± SD, 1.6 ± 1.2 to 2.6 ± 1.7, P < .001) while WBISI increased by 25.0% (1.6 ± 1.0 to 2.0 ± 1.0, P < .001) but the rate of change for WBISI and WBISI120 was not significantly different (P = .11). WBISI120 costs ~70% less than WBISI. WBISI120 may offer a cost-effective surrogate estimate of insulin sensitivity in Latino youth with obesity.
Collapse
Affiliation(s)
- Armando Peña
- Center for Health Promotion and Disease Prevention, Arizona State University, Phoenix, Arizona
- College of Health Solutions, Arizona State University, Phoenix, Arizona
| | - Micah L. Olson
- Center for Health Promotion and Disease Prevention, Arizona State University, Phoenix, Arizona
- Department of Pediatric Endocrinology and Diabetes, Phoenix Children’s Hospital, Phoenix, Arizona
| | - Erica G. Soltero
- Center for Health Promotion and Disease Prevention, Arizona State University, Phoenix, Arizona
- Southwest Interdisciplinary Research Center, Arizona State University, Phoenix, Arizona
| | - Chong Lee
- College of Health Solutions, Arizona State University, Phoenix, Arizona
| | - Meynard J. Toledo
- College of Health Solutions, Arizona State University, Phoenix, Arizona
| | - Stephanie L. Ayers
- Southwest Interdisciplinary Research Center, Arizona State University, Phoenix, Arizona
| | - Gabriel Q. Shaibi
- Center for Health Promotion and Disease Prevention, Arizona State University, Phoenix, Arizona
- College of Health Solutions, Arizona State University, Phoenix, Arizona
- Department of Pediatric Endocrinology and Diabetes, Phoenix Children’s Hospital, Phoenix, Arizona
- Southwest Interdisciplinary Research Center, Arizona State University, Phoenix, Arizona
| |
Collapse
|
17
|
Kim J, Son WM, Headid Iii RJ, Pekas EJ, Noble JM, Park SY. The effects of a 12-week jump rope exercise program on body composition, insulin sensitivity, and academic self-efficacy in obese adolescent girls. J Pediatr Endocrinol Metab 2020; 33:129-137. [PMID: 31812946 DOI: 10.1515/jpem-2019-0327] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 11/01/2019] [Indexed: 01/19/2023]
Abstract
Background Childhood obesity is strongly associated with the development of cardiovascular disease (CVD). Exercise interventions have been used for obese children and adolescents to prevent the manifestation of CVD risks, such as hypertension and insulin resistance (IR). Additionally, obesity has been shown to be linked to low self-efficacy in adolescents, which has been shown to negatively impact academic performance. Therefore, the purpose of this study was to examine the effects of a 12-week jump rope exercise program on body composition, CVD risk factors, and academic self-efficacy (ASE) in obese adolescent girls with prehypertension. Methods Adolescent girls with prehypertension and obesity (n = 48, age 14-16 years) were randomly assigned to either the jump rope exercise group (EX, n = 24) or the control group (CON, n = 24). Body composition, blood pressure (BP), blood glucose, insulin levels, homeostatic model assessment of insulin resistance (HOMA-IR) (marker of IR), and ASE were assessed before and after 12 weeks of exercise training or control. Results There were significant group × time interactions following the 12-week exercise program for body fat percent, waist circumference (WC), systolic blood pressure (SBP), blood glucose, insulin levels, and HOMA-IR, which were all significantly reduced (p < 0.05). A significant improvement (p <0.05) was observed in task difficulty preference (TDP) and self-regulatory efficacy (SRE) following exercise training. Additionally, ASE was strongly correlated (r = -0.58) with body composition. Conclusions This study provides evidence that jump rope exercise intervention can be a useful therapeutic treatment to improve CVD risk factors and ASE in obese adolescent girls with prehypertension.
Collapse
Affiliation(s)
- Jun Kim
- Chonnam National University, Gwangju, Republic of Korea
| | - Won-Mok Son
- Department of Health and Kinesiology, University of Nebraska at Omaha, Omaha, NE, USA
| | - Ronald J Headid Iii
- Department of Health and Kinesiology, University of Nebraska at Omaha, Omaha, NE, USA
| | - Elizabeth J Pekas
- Department of Health and Kinesiology, University of Nebraska at Omaha, Omaha, NE, USA
| | - John M Noble
- Department of Health and Kinesiology, University of Nebraska at Omaha, Omaha, NE, USA
| | - Song-Young Park
- Department of Health and Kinesiology, University of Nebraska at Omaha, Omaha, NE, USA
| |
Collapse
|
18
|
Cockcroft EJ, Bond B, Williams CA, Harris S, Jackman SR, Armstrong N, Barker AR. The effects of two weeks high-intensity interval training on fasting glucose, glucose tolerance and insulin resistance in adolescent boys: a pilot study. BMC Sports Sci Med Rehabil 2019; 11:29. [PMID: 31827806 PMCID: PMC6900855 DOI: 10.1186/s13102-019-0141-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 10/10/2019] [Indexed: 01/27/2023]
Abstract
Background Current evidence of metabolic health benefits of high-intensity interval training (HIIT) are limited to longer training periods or conducted in overweight youth. This study assessed 1) fasting and postprandial insulin and glucose before and after 2 weeks of HIIT in healthy adolescent boys, and 2) the relationship between pre intervention health outcomes and the effects of the HIIT intervention. Methods Seven healthy boys (age:14.3 ± 0.3 y, BMI: 21.6 ± 2.6, 3 participants classified as overweight) completed 6 sessions of HIIT over 2 weeks. Insulin resistance (IR) and blood glucose and insulin responses to a Mixed Meal Tolerance Test (MMTT) were assessed before (PRE), 20 h and 70 h after (POST) the final HIIT session. Results Two weeks of HIIT had no effect on fasting plasma glucose, insulin or IR at 20 h and 70 h POST HIIT, nor insulin and glucose response to MMTT (all P > 0.05). There was a strong negative correlation between PRE training IR and change in IR after HIIT (r = − 0.96, P < 0.05). Conclusion Two weeks of HIIT did not elicit improvements to fasting or postprandial glucose or insulin health outcomes in a group of adolescent boys. However the negative correlation between PRE IR and improvements after HIIT suggest that interventions of this type may be effective in adolescents with raised baseline IR.
Collapse
Affiliation(s)
- Emma J Cockcroft
- 1Children's Health and Exercise Research Centre, Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX1 2LU UK.,2College of Medicine and Health, University of Exeter, Exeter, EX1 2LU UK
| | - Bert Bond
- 1Children's Health and Exercise Research Centre, Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX1 2LU UK
| | - Craig A Williams
- 1Children's Health and Exercise Research Centre, Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX1 2LU UK
| | - Sam Harris
- 3Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX1 2LU UK
| | - Sarah R Jackman
- 3Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX1 2LU UK
| | - Neil Armstrong
- 1Children's Health and Exercise Research Centre, Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX1 2LU UK
| | - Alan R Barker
- 1Children's Health and Exercise Research Centre, Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX1 2LU UK
| |
Collapse
|
19
|
Kang BK, Kim M, Shin SJ, Kim YJ. Correlation of Clinical and Histopathologic Parameters with Ultrasonographic Grades in Pediatric Non-Alcoholic Fatty Liver Disease. J Korean Med Sci 2019; 34:e298. [PMID: 31808322 PMCID: PMC6900409 DOI: 10.3346/jkms.2019.34.e298] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 10/02/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Liver biopsy is the gold standard for diagnosing non-alcoholic steatohepatitis (NASH), but liver biopsy in children is not available in many institutes and many parents are reluctant to agree with the procedure. We investigated the correlation of clinical and pathologic parameters with the severity of non-alcoholic fatty liver disease (NAFLD) in pediatric patients using ultrasonographic examination methods and measured the prevalence of fatty pancreas in pediatric NAFLD. METHODS Liver biopsy and abdominal ultrasound (US) examinations were performed in 58 children (42 boys, 16 girls; mean age, 12 years; age range, 4-19 years) between March 2006 and August 2017. Fatty liver and fatty pancreas were evaluated by two independent radiologists using US according to 4- and 3-point scales, respectively. We then analyzed the correlations of clinical, laboratory, and histopathologic parameters with the ultrasonographic grade of steatosis. RESULTS Forty-two children showed simple steatosis (NAFLD activity score [NAS] ≤ 5) while 16 showed NASH (NAS > 5). Higher body mass index (BMI) percentile, waist circumference, hematocrit, insulin resistance, and lower insulin sensitivity index were significantly positively correlated with the grade of fatty liver. NAFLD activity score, amount of steatosis, and fibrosis significantly worsened as the fatty liver grade increased. Higher BMI, lower insulin sensitivity index, and boy were significantly positively correlated with the fatty pancreas grade. CONCLUSION Altogether, ultrasonographic severity of fatty liver shows good correlation with that of clinical parameters and hepatic pathology.
Collapse
Affiliation(s)
- Bo Kyeong Kang
- Department of Radiology, Hanyang University College of Medicine, Hanyang University Medical Center, Seoul, Korea
| | - Mimi Kim
- Department of Radiology, Hanyang University College of Medicine, Hanyang University Medical Center, Seoul, Korea
| | - Su Jin Shin
- Department of Pathology, Hanyang University College of Medicine, Hanyang University Medical Center, Seoul, Korea
| | - Yong Joo Kim
- Department of Pediatrics, Hanyang University College of Medicine, Hanyang University Medical Center, Seoul, Korea.
| |
Collapse
|
20
|
Choi YS, Klaric JS, Beltran TH. Prediction of Insulin Resistance with Anthropometric and Clinical Laboratory Measures in Nondiabetic Teenagers. Metab Syndr Relat Disord 2019; 17:37-45. [DOI: 10.1089/met.2018.0072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Young Sammy Choi
- Department of Medicine, Womack Army Medical Center, Fort Bragg, North Carolina
- Department of Pediatrics, Womack Army Medical Center, Fort Bragg, North Carolina
- Department of Research, Womack Army Medical Center, Fort Bragg, North Carolina
| | - John S. Klaric
- Department of Research, Womack Army Medical Center, Fort Bragg, North Carolina
| | - Thomas H. Beltran
- Department of Research, Womack Army Medical Center, Fort Bragg, North Carolina
| |
Collapse
|
21
|
Relationship of NEFA concentrations to RBP4 and to RBP4/retinol in prepubertal children with and without obesity. J Clin Lipidol 2019; 13:301-307. [PMID: 30773418 DOI: 10.1016/j.jacl.2019.01.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 01/11/2019] [Accepted: 01/16/2019] [Indexed: 11/23/2022]
Abstract
BACKGROUND The regulation of adipose tissue metabolism in early childhood obesity is not well understood. Insulin levels are higher and insulin resistance seems to be present in prepubertal children with obesity but, differing from their behavior in adults with obesity, non-esterified fatty acid (NEFA) concentrations are not increased. Retinol-binding protein (RBP)-4 concentration is associated with obesity and insulin resistance conditions, but the means of this relationship remain unclear, and few studies have taken retinol values into account to evaluate it. OBJECTIVE To analyze the relationship between RBP4 concentration and lipolytic products in plasma in 141 prepubertal children aged 6 to 8 years, with and without obesity. METHODS Plasma glucose, insulin, triacylglycerols, NEFA, glycerol, leptin, RBP4, and retinol were analyzed in obese and in their normal-weight counterparts. Homeostatic model assessment, quantitative insulin sensitivity check index, and fasting glucose to insulin ratio were calculated as indicators of insulin resistance. RESULTS Fasted plasma NEFA concentrations were lower in children with obesity than in their normal weight counterparts, despite leptin, insulin resistance indices, RBP4, retinol, and RBP4/retinol (an index of free-RBP4) being higher. NEFA and glycerol concentrations were inversely correlated with RBP4/retinol in children with obesity but not in those without obesity. In normal weight children, total RBP4 correlated negatively with NEFA and glycerol concentrations and positively with insulin and homeostasis model assessment for insulin resistance. These results indicate that a low saturation of RBP4 with retinol, which implies a higher concentration of free-RBP4, may preserve the antilipolytic function of insulin in adipose tissue in children with obesity. CONCLUSION Our findings suggest that, in prepubertal children with obesity and insulin resistance, the amount of RBP4/retinol correlates with the antilipolytic response of the adipose tissue to insulin rather than the total RBP4 concentration.
Collapse
|
22
|
Wang AR, Yan XQ, Zhang C, Du CQ, Long WJ, Zhan D, Ren J, Luo XP. Characterization of Wnt1-inducible Signaling Pathway Protein-1 in Obese Children and Adolescents. Curr Med Sci 2018; 38:868-874. [DOI: 10.1007/s11596-018-1955-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 08/06/2018] [Indexed: 12/19/2022]
|
23
|
Wang A, Yan X, Zhang C, Du C, Long W, Zhan D, Luo X. Characterization of fibroblast growth factor 1 in obese children and adolescents. Endocr Connect 2018; 7:932-940. [PMID: 30299902 PMCID: PMC6130312 DOI: 10.1530/ec-18-0141] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND Fibroblast growth factor 1 (FGF1) can regulate glucose and lipid metabolism in obese mice. Serum FGF1 has increased in type 2 diabetes mellitus adults and correlated with BMI. This study aimed to indicate conventional weight loss effects on FGF1 in obese children and adolescents. MATERIALS AND METHODS Clinical and metabolic parameters of 88 lean and obese individuals (ages 5–15 years) and 39 obese individuals followed with 6 months of lifestyle intervention were collected. Serum FGF1 levels were detected through enzyme-linked immunosorbent assays. RESULTS FGF1 levels were increased in obese individuals. Serum FGF1 levels were significantly correlated with BMI and waist circumferences (r = 0.377, P = 0.012; r = 0.301, P = 0.047, respectively). Multivariate stepwise linear regression analyses showed that FGF1 levels were significantly correlated with HbA1c and HOMA-IR (β = 0.371, P = 0.008; β = 0.323, P = 0.021, respectively). Weight loss (2.3 ± 0.1 kg) was accompanied by a significant reduction of circulating FGF1 levels (7.2 ± 0.4 pg/mL). Changes in FGF1 were significantly correlated with changes in fasting glucose, HOMA-IR and low-density lipoprotein cholesterol (β = 0.277, P = 0.020; β = 0.474, P < 0.001; β = 0.320, P = 0.008, respectively). CONCLUSION FGF1 levels were increased in obese individuals. Serum FGF1 levels were significantly correlated with BMI and waist circumferences (r = 0.377, P = 0.012; r = 0.301, P = 0.047, respectively). Multivariate stepwise linear regression analyses showed that FGF1 levels were significantly correlated with HbA1c and HOMA-IR (β = 0.371, P = 0.008; β = 0.323, P = 0.021, respectively). Weight loss (2.3 ± 0.1 kg) was accompanied by a significant reduction of circulating FGF1 levels (7.2 ± 0.4 pg/mL). Changes in FGF1 were significantly correlated with changes in fasting glucose, HOMA-IR and low-density lipoprotein cholesterol (β = 0.277, P = 0.020; β = 0.474, P < 0.001; β = 0.320, P = 0.008, respectively).
Collapse
Affiliation(s)
- Anru Wang
- Department of PediatricsTongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Department of PediatricsThe Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xueqin Yan
- Department of PediatricsBoai Hospital of Zhongshan, Zhongshan, China
| | - Cai Zhang
- Department of PediatricsTongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Caiqi Du
- Department of PediatricsTongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenjun Long
- Department of PediatricsTongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Di Zhan
- Department of PediatricsTongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoping Luo
- Department of PediatricsTongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Correspondence should be addressed to X Luo:
| |
Collapse
|
24
|
Fox C, Bernardino L, Cochran J, Essig M, Bridges KG. Inappropriate Use of Homeostasis Model Assessment Cutoff Values for Diagnosing Insulin Resistance in Pediatric Studies. J Osteopath Med 2018; 117:689-696. [PMID: 29084322 DOI: 10.7556/jaoa.2017.135] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Background Assessing pediatric patients for insulin resistance is one way to identify those who are at a high risk of developing type 2 diabetes mellitus. The homoeostasis model assessment (HOMA) is a measure of insulin resistance based on fasting blood glucose and insulin levels. Although this measure is widely used in research, cutoff values for pediatric populations have not been established. Objective To assess the validity of HOMA cutoff values used in pediatric studies published in peer-reviewed journals. Methods Studies published from January 2010 to December 2015 were identified through MEDLINE. Initial screening of abstracts was done to select studies that were conducted in pediatric populations and used HOMA to assess insulin resistance. Subsequent full-text review narrowed the list to only those studies that used a specific HOMA score to diagnose insulin resistance. Each study was classified as using a predetermined fixed HOMA cutoff value or a cutoff that was a percentile specific to that population. For studies that used a predetermined cutoff value, the references cited to provide evidence in support of that cutoff were evaluated. Results In the 298 articles analyzed, 51 different HOMA cutoff values were used to classify patients as having insulin resistance. Two hundred fifty-five studies (85.6%) used a predetermined fixed cutoff value, but only 72 (28.2%) of those studies provided a reference that supported its use. One hundred ten studies (43%) that used a fixed cutoff either cited a study that did not mention HOMA or provided no reference at all. Tracing of citation history indicated that the most commonly used cutoff values were ultimately based on studies that did not validate their use for defining insulin resistance. Conclusion Little evidence exists to support HOMA cutoff values commonly used to define insulin resistance in pediatric studies. These findings highlight the importance of validating study design elements when training medical students and novice investigators. Using available data to generate population ranges for HOMA would improve its clinical utility.
Collapse
|
25
|
Kloppenborg JT, Gamborg M, Fonvig CE, Nielsen TRH, Pedersen O, Johannesen J, Hansen T, Holm JC. The effect of impaired glucose metabolism on weight loss in multidisciplinary childhood obesity treatment. Pediatr Diabetes 2018; 19:366-374. [PMID: 29159854 DOI: 10.1111/pedi.12605] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 08/30/2017] [Accepted: 10/11/2017] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE To investigate whether children and adolescents exhibiting an impaired glucose metabolism are more obese at treatment entry and less likely to reduce their degree of obesity during treatment. METHODS The present study is a longitudinal observational study, including children and adolescents from the Children's Obesity Clinic, Holbaek, Denmark. Anthropometrics, pubertal development, socioeconomic status (SES), and fasting concentrations of plasma glucose, serum insulin, serum C-peptide, and whole blood glycosylated hemoglobin (HbA1c) were collected at treatment entry and at follow-up. Proxies of Homeostasis Model Assessment 2-insulin sensitivity (HOMA2-IS) and Homeostasis Model Assessment 2-β-cell function (HOMA2-B) were calculated with the Homeostasis Model Assessment 2 program. RESULTS In total, 569 (333 boys) patients, median 11.5 years of age (range 6-22 years), and median body mass index (BMI) z-score 2.94 (range 1.34-5.54) were included. The mean BMI z-score reduction was 0.31 (±0.46) after 13 months (range 6-18) of treatment. At treatment entry, patients with impaired estimates of glucose metabolism were more obese than normoglycemic patients. Baseline concentration of C-peptide was associated with a lower weight loss during treatment in girls (P = .02). Reduction in the insulin concentrations was associated with reduction in BMI z-score in both sexes (P < .0001, P = .0005). During treatment, values of glucose, HbA1c, HOMA2-IS, and HOMA2-B did not change or impact the treatment outcome, regardless of age, sex, SES, or degree of obesity at treatment entry. CONCLUSION The capability to reduce weight during multidisciplinary treatment in children and adolescents with overweight/obesity is not influenced by an impaired glucose metabolism at study entry or during the course of treatment.
Collapse
Affiliation(s)
- Julie T Kloppenborg
- The Children's Obesity Clinic, Department of Pediatrics, Copenhagen University Hospital Holbaek, Holbaek, Denmark.,Department of Pediatrics, Copenhagen University Hospital Herlev, Herlev, Denmark
| | - Michael Gamborg
- Institute of Preventive Medicine, Copenhagen University Hospital, Copenhagen, Denmark
| | - Cilius E Fonvig
- The Children's Obesity Clinic, Department of Pediatrics, Copenhagen University Hospital Holbaek, Holbaek, Denmark.,The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, University of Copenhagen, Copenhagen, Denmark.,Hans Christian Andersen Children's Hospital, Odense University Hospital, Odense, Denmark
| | - Tenna R H Nielsen
- The Children's Obesity Clinic, Department of Pediatrics, Copenhagen University Hospital Holbaek, Holbaek, Denmark.,The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, University of Copenhagen, Copenhagen, Denmark
| | - Oluf Pedersen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, University of Copenhagen, Copenhagen, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jesper Johannesen
- Department of Pediatrics, Copenhagen University Hospital Herlev, Herlev, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Torben Hansen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, University of Copenhagen, Copenhagen, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jens-Christian Holm
- The Children's Obesity Clinic, Department of Pediatrics, Copenhagen University Hospital Holbaek, Holbaek, Denmark.,The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, University of Copenhagen, Copenhagen, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
26
|
Du C, Zhang C, Wu W, Liang Y, Wang A, Wu S, Zhao Y, Hou L, Ning Q, Luo X. Circulating MOTS-c levels are decreased in obese male children and adolescents and associated with insulin resistance. Pediatr Diabetes 2018; 19:1058-1064. [PMID: 29691953 DOI: 10.1111/pedi.12685] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 03/14/2018] [Accepted: 04/16/2018] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND AND AIMS A novel bioactive peptide, mitochondrial-derived peptide (MOTS-c), has recently attracted attention as a potential prevention or therapeutic option for obesity and type 2 diabetes mellitus (T2DM). MOTS-c profiles have not yet been reported in human obesity and T2DM. We aimed to determine circulating MOTS-c levels in obesity and explore the association between MOTS-c levels and various metabolic parameters. METHODS In this case-control study, 40 obese children and adolescents (27 males) and 57 controls (40 males) were recruited in the Hubei Province of China in 2017. Circulating MOTS-c levels were measured, clinical data (eg, glucose, insulin, and lipid profile) were recorded, and anthropometric measurements were performed. Finally, we investigated correlations between MOTS-c levels and related variables. RESULTS MOTS-c levels were significantly decreased in the obese group compared with the control group (472.61 ±22.83 vs 561.64 ±19.19 ng/mL, P <.01). After classification by sex, MOTS-c levels were significantly decreased in obese male children and adolescents compared to their counterparts (465.26 ±24.53 vs 584.07 ±21.18 ng/mL, P <.001), while they were comparable between the obese and healthy female subjects (487.89 ±49.77 vs 508.85 ±38.76 ng/mL, P >.05). Further, MOTS-c levels were negatively correlated with body mass index (BMI), BMI SD score, waist circumference, waist-to-hip ratio, fasting insulin level, homeostasis model assessment of insulin resistance (HOMA-IR), and glycated hemoglobin (HbA1c) in the male cohort. CONCLUSIONS Circulating MOTS-c levels were decreased in obese male children and adolescents and correlated with markers of insulin resistance and obesity.
Collapse
Affiliation(s)
- Caiqi Du
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cai Zhang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Wu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Liang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Anru Wang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Department of Pediatrics, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Shimin Wu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yue Zhao
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ling Hou
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qin Ning
- Department of Infectious Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoping Luo
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
27
|
Yoon J, Park BH, Kim JH, Moon JH, Lee YH, Jang SM, Kim YJ. Investigation of Clinical and Pathological Relationships between Adult- and Pediatric-type NASH in Korean Children. J Korean Med Sci 2018; 33:e34. [PMID: 29349944 PMCID: PMC5773848 DOI: 10.3346/jkms.2018.33.e34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 11/06/2017] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Histologically, nonalcoholic steatohepatitis (NASH) is categorized into adult-type (type 1) and pediatric-type (type 2). The origination of the histological difference between the two types and how they differ clinically remain uncertain. We aimed to understand the incidence and clinical characteristics of the two types of NASH in Korean children, and to investigate the association between their pathological type and clinical characteristics, using anthropometric and laboratory data. METHODS In 38 children with confirmed NASH, we investigated hepatic pathological findings, and correlating factors between pathological type and laboratory and anthropometric data (weight percentile, body mass index (BMI) z-score, and blood pressure percentile). Adult-type NASH was noted in 21 patients and pediatric-type in 17 patients. RESULTS Age, sex, BMI, transaminase levels, and insulin resistance were not significantly different between the two groups. Triglyceride (TG) levels were higher in adult-type NASH (P = 0.033). Hematocrit and albumin levels were lower in adult-type NASH (P = 0.016 and 0.013, respectively). Hepatic fibrosis was more common in pediatric-type. The fibrosis scores in patients with adult-type were mostly 0 and 1, whereas the score was 3 in patients with pediatric-type (P = 0.024, 0.004, and < 0.010, respectively). Anthropometric data, liver function, and insulin resistance scores did not differ between the two pathological NASH types. TG, hematocrit, and albumin may be potential factors to predict pathological types. Fibrosis was observed more frequently in pediatric-type NASH. CONCLUSION Monitoring children with pediatric-type NASH for progression to fibrosis or cirrhosis is recommended.
Collapse
Affiliation(s)
- Jungmin Yoon
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Byung Han Park
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Ja Hye Kim
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Jin Hwa Moon
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Young Ho Lee
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Se Min Jang
- Department of Pathology, Konyang University College of Medicine, Daejeon, Korea
| | - Yong Joo Kim
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea.
| |
Collapse
|
28
|
Tsuji-Hosokawa A, Takasawa K, Nomura R, Miyakawa Y, Numakura C, Hijikata A, Shirai T, Ogawa Y, Kashimada K, Morio T. Molecular mechanisms of insulin resistance in 2 cases of primary insulin receptor defect-associated diseases. Pediatr Diabetes 2017; 18:917-924. [PMID: 28181734 DOI: 10.1111/pedi.12508] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 01/10/2017] [Accepted: 01/11/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Defects of the insulin receptor gene ( INSR ) cause wide spectra of congenital insulin resistance. Monoallelic defects result in milder insulin-resistant diabetes mellitus with acanthosis nigricans (IRAN, type A). Whereas, leprechaunism (Donahue syndrome), the most severe condition with lethality during the infantile period is caused by biallelic defects of INSR . MATERIALS AND METHODS We detected 2 missense mutations in 2 cases of leprechaunism and IRAN, type A, and reduced mRNA expression in the leprechaunism case. We performed an in vitro analysis to confirm that the 2 missense mutations are causative. RESULTS The heterozygote mutations c.3436G>A (p.Gly1146Arg) and c.294C>A (p.Ser98Arg) were identified in a male patient with IRAN, type A and a female patient with leprechaunism, respectively. Gly1146Arg was previously reported in a diabetic case without precise functional analyses, and Ser98Arg is a novel mutation. Gly1146 and Ser98 are located on the tyrosine kinase domain and ligand-binding domain of INSR, respectively, and in vitro analyses (assay for insulin binding and phosphorylation) revealed that each mutation disrupted protein functions and properties. In the leprechaunism case, mutations in INSR other than Ser98Arg were not identified, and qRT-PCR analysis revealed that mRNA expression of INSR in lymphocytes was reduced in the leprechaunism case. CONCLUSION Our study indicates that the 2 missense mutations of INSR , Gly1146Arg, and Ser98Arg, are responsible for insulin resistance, and, suggests that mutations not contained within INSR , but leading to decreased INSR expression should be considered for the patients who show insulin resistance without any mutations in the coding sequence of INSR.
Collapse
Affiliation(s)
- Atsumi Tsuji-Hosokawa
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kei Takasawa
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Risa Nomura
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuichi Miyakawa
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Chikahiko Numakura
- Department of Pediatrics, Yamagata University School of Medicine, Yamagata, Japan
| | - Atsushi Hijikata
- Faculty of Bioscience, Nagahama Institute of Bio-Science and Technology, Nagahama, Japan
| | - Tsuyoshi Shirai
- Faculty of Bioscience, Nagahama Institute of Bio-Science and Technology, Nagahama, Japan
| | - Yoshihiro Ogawa
- Department of Molecular Endocrinology and Metabolism, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kenichi Kashimada
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| |
Collapse
|
29
|
Zhao Y, Hou L, Gao HJ, Zhan D, Zhang C, Luo XP. Independent relationship between body mass index and LH peak value of GnRH stimulation test in ICPP girls: A cross-sectional study. ACTA ACUST UNITED AC 2017; 37:556-562. [PMID: 28786058 DOI: 10.1007/s11596-017-1772-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 06/15/2017] [Indexed: 10/18/2022]
Abstract
The effect of obesity on idiopathic central precocious puberty (ICPP) girls is still under discussion. The relationship between body mass index (BMI) and sexual hormone levels of gonadotropin-releasing hormone (GnRH) stimulation test in ICPP girls is controversial and the underlying mechanism is unclear. This study aims to further explore the independent effect of excess adiposity on peak luteinizing hormone (LH) level of stimulation test in ICPP girls and the role of other related factors. A retrospective cross-sectional study was performed on 618 girls diagnosed as having ICPP, including 355 cases of normal weight, 99 cases of overweight and 164 cases of obese. The results showed that obese group had more progressed Tanner stage and no significant difference (P=0.28) in LH peak was found as basal LH value was used as a covariate. The obese group had higher total testosterone (TT), adrenocorticotrophic hormone (ACTH), 17-α hydroxyprogesterone (17-αOHP) and androstendione (AN), with significantly increased fasting insulin (FIN) and homeostasis model of assessment for insulin resistance index (HOMA-IR). Stratified analysis showed inconsistency of the relationship between BMI-standard deviation score (BMI-SDS) and LH peak in different Tanner stages (P for interaction=0.017). Further smoothing plot showed linear and non-linear relationship between BMI-SDS and LH peak in three Tanner stages. Then linear regression model was used to analyze the relationship between BMI-SDS and LH peak in different Tanner stages, with and without different confounding factors being adjusted. In B2 stage, BMI-SDS was negatively associated with LH peak. In B3 stage, when BMI-SDS <1.5, as BMI-SDS increased, the level of LH peak decreased (model I: β=-1.8, 95% CI=-4.7 to 1.1, P=0.214). When BMI-SDS ≥1.5, BMI-SDS was significantly positively associated with LH peak (model I: β=4.5, 95% CI=1.7 to 7.4, P=0.002). In B4 stage, when BMI-SDS <1.5, BMI-SDS was negatively associated with LH peak (model I: β=-11.6, 95% CI=-22.7 to-0.5, P=0.049). When BMI-SDS ≥1.5, BMI-SDS was positively associated with LH peak (model I: β=-4.2, 95% CI=-3.3 to 11.7, P=0.28). It is concluded that there is an independent correlation between BMI-SDS and LH peak of stimulation test in ICPP girls, their relationships are different in different Tanner stages, and the effect of BMI-SDS can be affected by adrenal androgens, estradiol and glucose metabolism parameters.
Collapse
Affiliation(s)
- Yue Zhao
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Ling Hou
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Hong-Jie Gao
- Department of Pediatrics, Qilu Hospital, Shandong University, Jinan, 250012, China
| | - Di Zhan
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Cai Zhang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiao-Ping Luo
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| |
Collapse
|
30
|
Prevalence of vitamin D deficiency in girls with idiopathic central precocious puberty. Front Med 2017; 12:174-181. [PMID: 28791667 DOI: 10.1007/s11684-017-0544-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 04/30/2017] [Indexed: 12/15/2022]
Abstract
The relationship between vitamin D deficiency and idiopathic central precocious puberty (ICPP) has been recently documented. In this study, 280 girls diagnosed with ICPP and 188 normal puberty control girls of similar ages were enrolled and retrospectively studied. The ICPP group had significantly lower serum 25-hydroxyvitamin D (25[OH]D) levels than the control group. Furthermore, a nonlinear relationship was found between serum 25[OH]D and ICPP, and a cut-off point for serum 25[OH]D was found at 31.8 ng/ml for ICPP with and without adjusting the different confounding factors. Girls with serum 25[OH]D ≥ 31.8 ng/ml had a lower odds ratio (unadjusted: OR 0.36, 95% CI 0.15 to 0.83, P < 0.05; height and weight adjusted: OR 0.44, 95% CI 0.18 to 1.08, P = 0.072; BMI adjusted: OR 0.36, 95% CI 0.16 to 0.84, P < 0.05). The ICPP subjects with 25[OH]D deficiency had a higher body mass index (BMI) than the subjects from the two other subgroups. Correlation analysis showed that vitamin D level is correlated with BMI and some metabolic parameters in the ICPP group. Our study suggested that vitamin D status may be associated with ICPP risk and may have a threshold effect on ICPP.
Collapse
|
31
|
Park BH, Yoon JM, Kim JH, Moon JH, Lee YH, Jang SM, Kim YJ. Pathologic Impact of Insulin Resistance and Sensitivity on the Severity of Liver Histopathology in Pediatric Non-Alcoholic Steatohepatitis. Yonsei Med J 2017; 58:756-762. [PMID: 28540988 PMCID: PMC5447106 DOI: 10.3349/ymj.2017.58.4.756] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 03/20/2017] [Accepted: 03/21/2017] [Indexed: 12/25/2022] Open
Abstract
PURPOSE Insulin resistance (IR) has an important role in the development of non-alcoholic steatohepatitis (NASH). We aimed to analyze the association between liver histopathology and IR in pediatric patients with NASH. MATERIALS AND METHODS In 24 children with non-alcoholic fatty liver disease (NAFLD), we investigated whether the hepatic pathologic characteristics have relations with following three biochemical indices; IR index including homeostasis model assessment of IR (HOMA-IR), quantitative insulin sensitivity check index (QUICKI), and insulin sensitivity indices-free fatty acid (ISI-FFA). RESULTS Among 24 patients, 16 (66.6%) had a high NAFLD activity score (NAS), which is diagnostic of NASH. Higher serum triglyceride level was significantly correlated with a high NAS. Higher steatosis grades were significantly associated with low insulin sensitivity (p=0.023). In addition, severe lobular inflammation was associated with higher IR: HOMA-IR (p=0.014) and QUICKI (p=0.023). Severe fibrosis correlated with low insulin sensitivity and high IR indexes: ISI-FFA (p=0.049), HOMA-IR (p=0.028), and QUICKI (p=0.007). CONCLUSION Patients with high IR had more severe lobular inflammation and hepatic fibrosis. Analyses of biochemical and endocrine parameters can be applied to determine the severity of the hepatic pathologic status in patients with NASH, especially in children who cannot undergo a liver biopsy.
Collapse
Affiliation(s)
- Byung Han Park
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Jung Min Yoon
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Ja Hye Kim
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Jin Hwa Moon
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Young Ho Lee
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Se Min Jang
- Department of Pathology, Konyang University College of Medicine, Daejeon, Korea
| | - Yong Joo Kim
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea.
| |
Collapse
|
32
|
Levy E, Saenger A, Steffes M, Delvin E. Pediatric Obesity and Cardiometabolic Disorders: Risk Factors and Biomarkers. EJIFCC 2017; 28:6-24. [PMID: 28439216 PMCID: PMC5387697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Obesity remains the most prevailing disorder in childhood males and females worldwide. Its high prevalence markedly predisposes children to insulin resistance, hypertension, hyperlipidemia and liver disorders while enhancing the risk of type 2 diabetes and cardiovascular diseases. In this review, the relationship of obesity with genetic and environmental factors will be described and the underlined causes will briefly be reported. As obesity in children constitutes an increasingly health concern, important potential biomarkers have been discussed for the diagnosis, treatment and follow-up of the wide range of overweight-related complications. Awareness about the applicability and limitations of these preventive and predictive biomarkers will intensify the research and medical efforts for new developments in order to efficiently struggle against childhood obesity.
Collapse
Affiliation(s)
- E. Levy
- Department of Nutrition, University of Montreal, Montreal, Quebec, Canada, CHU Sainte-Justine Research Center, Nutrition, Gastroenterology and Hepatology Division, University of Montreal, Montreal, Quebec, Canada
| | - A.K. Saenger
- Department of Laboratory Medicine and Pathology, University of Minnesota Health, Minneapolis, MN, USA
| | - M.W. Steffes
- Department of Laboratory Medicine and Pathology, University of Minnesota Health, Minneapolis, MN, USA
| | - E. Delvin
- CHU Sainte-Justine Research Center, Nutrition, Gastroenterology and Hepatology Division, University of Montreal, Montreal, Quebec, Canada, Department of Biochemistry, University of Montreal, Montreal, Quebec, Canada,Ph.D. CHU Sainte-Justine Research Center 3175 Côte Ste-Catherine Montréal, Québec, H3T 1C5 Canada (514) 345-4931 ext. 6268
| |
Collapse
|
33
|
van der Aa MP, Knibbe CAJ, Boer AD, van der Vorst MMJ. Definition of insulin resistance affects prevalence rate in pediatric patients: a systematic review and call for consensus. J Pediatr Endocrinol Metab 2017; 30:123-131. [PMID: 27984205 DOI: 10.1515/jpem-2016-0242] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 10/05/2016] [Indexed: 11/15/2022]
Abstract
BACKGROUND As a result of the rising prevalence of childhood obesity, there is an increasing interest in the type 2 diabetes mellitus precursor insulin resistance (IR). The aim of this study is to review definitions (methods and cutoff values) to define IR in children and to apply these definitions to a previously described obese pediatric population. METHODS A systematic literature review on prevalence and/or incidence rates in children was performed. The extracted definitions were applied to an obese pediatric population. RESULTS In the 103 identified articles, 146 IR definitions were reported based on 14 different methods. Fasted definitions were used 137 times, whereas oral/intravenous glucose tolerance test-derived methods were used nine times. The homeostasis model for the assessment of insulin resistance (HOMA-IR) and fasted plasma insulin (FPI) were the most frequently used fasted methods (83 and 37 times, respectively). A wide range in cutoff values to define IR was observed, resulting in prevalence rates in the predefined obese pediatric population between 5.5% (FPI>30 mU/L) and 72.3% (insulin sensitivity indexMatsuda≤7.2). CONCLUSIONS To compare IR incidence and prevalence rates in pediatric populations, a uniform definition of IR should be defined.
Collapse
|
34
|
Sedaka NM, Olsen CH, Yannai LE, Stutzman WE, Krause AJ, Sherafat-Kazemzadeh R, Condarco TA, Brady SM, Demidowich AP, Reynolds JC, Yanovski SZ, Hubbard VS, Yanovski JA. A longitudinal study of serum insulin and insulin resistance as predictors of weight and body fat gain in African American and Caucasian children. Int J Obes (Lond) 2017; 41:61-70. [PMID: 27534840 PMCID: PMC5209266 DOI: 10.1038/ijo.2016.145] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 06/16/2016] [Accepted: 07/20/2016] [Indexed: 12/22/2022]
Abstract
BACKGROUND The influence of insulin and insulin resistance (IR) on children's weight and fat gain is unclear. OBJECTIVE To evaluate insulin and IR as predictors of weight and body fat gain in children at high risk for adult obesity. We hypothesized that baseline IR would be positively associated with follow-up body mass index (BMI) and fat mass. SUBJECTS/METHODS Two hundred and forty-nine healthy African American and Caucasian children aged 6-12 years at high risk for adult obesity because of early-onset childhood overweight and/or parental overweight were followed for up to 15 years with repeated BMI and fat mass measurements. We examined baseline serum insulin and homeostasis model of assessment-IR (HOMA-IR) as predictors of follow-up BMI Z-score and fat mass by dual-energy X-ray absorptiometry in mixed model longitudinal analyses accounting for baseline body composition, pubertal stage, sociodemographic factors and follow-up interval. RESULTS At baseline, 39% were obese (BMI⩾95th percentile for age/sex). Data from 1335 annual visits were examined. Children were followed for an average of 7.2±4.3 years, with a maximum follow-up of 15 years. After accounting for covariates, neither baseline insulin nor HOMA-IR was significantly associated with follow-up BMI (Ps>0.26), BMIz score (Ps>0.22), fat mass (Ps>0.78) or fat mass percentage (Ps>0.71). In all models, baseline BMI (P<0.0001), body fat mass (P<0.0001) and percentage of fat (P<0.001) were strong positive predictors for change in BMI and fat mass. In models restricted to children without obesity at baseline, some but not all models had significant interaction terms between body adiposity and insulinemia/HOMA-IR that suggested less gain in mass among those with greater insulin or IR. The opposite was found in some models restricted to children with obesity at baseline. CONCLUSIONS In middle childhood, BMI and fat mass, but not insulin or IR, are strong predictors of children's gains in BMI and fat mass during adolescence.
Collapse
Affiliation(s)
- N M Sedaka
- Section on Growth and Obesity (SGO), Program in Developmental Endocrinology and Genetics (PDEGEN), Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - C H Olsen
- Biostatistics Consulting Center, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - L E Yannai
- Section on Growth and Obesity (SGO), Program in Developmental Endocrinology and Genetics (PDEGEN), Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - W E Stutzman
- Section on Growth and Obesity (SGO), Program in Developmental Endocrinology and Genetics (PDEGEN), Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - A J Krause
- Section on Growth and Obesity (SGO), Program in Developmental Endocrinology and Genetics (PDEGEN), Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - R Sherafat-Kazemzadeh
- Section on Growth and Obesity (SGO), Program in Developmental Endocrinology and Genetics (PDEGEN), Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - T A Condarco
- Section on Growth and Obesity (SGO), Program in Developmental Endocrinology and Genetics (PDEGEN), Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - S M Brady
- Section on Growth and Obesity (SGO), Program in Developmental Endocrinology and Genetics (PDEGEN), Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - A P Demidowich
- Section on Growth and Obesity (SGO), Program in Developmental Endocrinology and Genetics (PDEGEN), Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - J C Reynolds
- Nuclear Medicine Department, Hatfield Clinical Research Center, NIH, Bethesda, MD, USA
| | - S Z Yanovski
- Section on Growth and Obesity (SGO), Program in Developmental Endocrinology and Genetics (PDEGEN), Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
- Nutritional Sciences Branch, Division of Digestive Diseases and Nutrition, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD, USA
| | - V S Hubbard
- Nutritional Sciences Branch, Division of Digestive Diseases and Nutrition, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD, USA
- Division of Nutrition Research Coordination, NIH, Bethesda, MD, USA
| | - J A Yanovski
- Section on Growth and Obesity (SGO), Program in Developmental Endocrinology and Genetics (PDEGEN), Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| |
Collapse
|
35
|
Mohd Nor NS, Lee S, Bacha F, Tfayli H, Arslanian S. Triglyceride glucose index as a surrogate measure of insulin sensitivity in obese adolescents with normoglycemia, prediabetes, and type 2 diabetes mellitus: comparison with the hyperinsulinemic-euglycemic clamp. Pediatr Diabetes 2016; 17:458-65. [PMID: 26251318 DOI: 10.1111/pedi.12303] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 07/14/2015] [Accepted: 07/15/2015] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND There is a need for simple surrogate estimates of insulin sensitivity in epidemiological studies of obese youth because the hyperinsulinemic-euglycemic clamp is not feasible on a large scale. OBJECTIVE (i) To examine the triglyceride glucose (TyG) index (Ln[fasting triglycerides (mg/dL) × fasting glucose (mg/dL)/2]) and its relationship to in vivo insulin sensitivity in obese adolescents (OB) along the spectrum of glucose tolerance and (ii) to compare TyG index with triglyceride/high-density lipoprotein TG/HDL and 1/fasting insulin (1/IF ), other surrogates of insulin sensitivity. PATIENTS AND DESIGN Cross-sectional data in 225 OB with normal glucose tolerance (NGT), prediabetes (preDM), and type 2 diabetes (T2DM) who had a 3-h hyperinsulinemic-euglycemic clamp and fasting lipid measurement. RESULTS Insulin-stimulated glucose disposal (Rd) declined significantly across the glycemic groups from OB-NGT to OB-preDM to OB-T2DM with a corresponding increase in TyG index (8.3 ± 0.5, 8.6 ± 0.5, 8.9 ± 0.6, p < 0.0001). The correlation of TyG index to Rd was -0.419 (p < 0.0001). The optimal TyG index for diagnosis of insulin resistance was 8.52 [receiver operating characteristic-area under the ROC curves (ROC-AUC) 0.750, p < 0.0001]. The ROC-AUC for 1/IF was 0.836. In multiple regression analysis, 64.8% of the variance in Rd was explained by TyG index, 1/IF , body mass index (BMI) z-score, glycemic group, and sex. CONCLUSION The TyG index affords an easily and widely available simple laboratory method as a surrogate estimate of insulin sensitivity that could be used repeatedly in large-scale observational and/or interventional cohorts of OB. Although not superior to 1/IF , TyG index offers the advantage of having a standardized method of measuring triglyceride and glucose, which is not the case for insulin assays.
Collapse
Affiliation(s)
- Noor Shafina Mohd Nor
- Division of Weight Management and Wellness, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.,Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh, Malaysia
| | - SoJung Lee
- Division of Weight Management and Wellness, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Fida Bacha
- Children's Nutrition Research Center, Baylor College of Medicine, Houston, TX, USA
| | - Hala Tfayli
- Department of Pediatrics and Adolescent Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Silva Arslanian
- Division of Weight Management and Wellness, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.,Division of Pediatric Endocrinology, Metabolism and Diabetes Mellitus, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| |
Collapse
|
36
|
Kelsey MM, Bjornstad P, McFann K, Nadeau K. Testosterone concentration and insulin sensitivity in young men with type 1 and type 2 diabetes. Pediatr Diabetes 2016; 17:184-90. [PMID: 25611822 PMCID: PMC4510044 DOI: 10.1111/pedi.12255] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 12/19/2014] [Accepted: 12/22/2014] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVE Reduced testosterone, a recognized comorbidity of reduced insulin sensitivity (IS) and type 2 diabetes (T2D), has also been reported in adult males with type 1 diabetes (T1D). However, there are limited data on how early reduced testosterone occurs, and whether it is related to the reduced IS in T1D. Leptin, a modulator of the HPG-axis, may also influence testosterone in T1D. We hypothesized that IS and leptin would be associated with total testosterone (TT), and free androgen index (FAI) in adolescent males with T1D. METHODS T1D (n = 35), T2D (n = 13), lean (n = 13) and obese (n = 9) adolescent males had IS measured by hyperinsulinemic-euglycemic clamps (glucose infusion rate [GIR]), in addition to leptin, sex hormone binding globulin (SHBG), TT, and FAI. The cohort was stratified into those with T1D (n = 35) and those without (n = 35). RESULTS TT and SHBG were lower in T2D boys vs. lean controls, and GIR and leptin correlated with FAI and TT in non-T1D participants. However, despite being insulin resistant, adolescent males with T1D had normal TT and FAI, unrelated to GIR. In T1D, leptin was inversely associated with TT (p = 0.005) and FAI (p = 0.01), independent of puberty, hemoglobin A1c (HbA1c), diabetes duration, body mass index (BMI) z-score and GIR. CONCLUSION Leptin accounted for a significant proportion of the variability of testosterone in T1D. However, despite reduced IS, there was no association between IS and testosterone in T1D adolescents. These observations suggest that the mechanisms affecting testosterone may differ between adolescent males with and without T1D.
Collapse
Affiliation(s)
- Megan M. Kelsey
- Department of Pediatric Endocrinology, University of Colorado Denver, Aurora, CO
| | - Petter Bjornstad
- Department of Pediatrics, University of Colorado Denver, Aurora, CO
| | - Kim McFann
- Department of Biostatistics, University of Colorado Denver, Aurora, CO
| | - Kristen Nadeau
- Department of Pediatric Endocrinology, University of Colorado Denver, Aurora, CO
| |
Collapse
|
37
|
Blasetti A, Franchini S, Comegna L, Prezioso G, Chiarelli F. Role of nutrition in preventing insulin resistance in children. J Pediatr Endocrinol Metab 2016; 29:247-57. [PMID: 26630690 DOI: 10.1515/jpem-2015-0189] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Accepted: 10/17/2015] [Indexed: 12/14/2022]
Abstract
Nutrition during prenatal, early postnatal and pubertal period is crucial for the development of insulin resistance and its consequences. During prenatal period fetal environment and nutrition seems to interfere with metabolism programming later in life. The type of dietary carbohydrates, glycemic index, protein, fat and micronutrient content in maternal nutrition could influence insulin sensitivity in the newborn. The effects of lactation on metabolism and nutritional behavior later in life have been studied. Dietary habits and quality of diet during puberty could prevent the onset of a pathological insulin resistance through an adequate distribution of macro- and micronutrients, a diet rich in fibers and vegetables and poor in saturated fats, proteins and sugars. We want to overview the latest evidences on the risk of insulin resistance later in life due to both nutritional behaviors and components during the aforementioned periods of life, following a chronological outline from fetal development to adolescence.
Collapse
|
38
|
Wu S, Gao H, Ma Y, Fu L, Zhang C, Luo X. Characterisation of betatrophin concentrations in childhood and adolescent obesity and insulin resistance. Pediatr Diabetes 2016; 17:53-60. [PMID: 25413012 DOI: 10.1111/pedi.12233] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 10/05/2014] [Accepted: 10/06/2014] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND AND OBJECTIVE Betatrophin, a novel hormone, is correlated with insulin resistance and promotes pancreatic β-cell growth in mice. The aim of this study was to determine circulating betatrophin levels in overweight or obese children and adolescents. METHODS The following pairs of subjects were included: (i) normal-weight healthy (n = 27) and overweight or obese (n = 28); (ii) non-insulin-resistant overweight or obese (n = 25) and insulin-resistant obese (n = 15); (iii) normal-weight males (n = 18) and females (n = 20); (4) 5 to 8 yr olds (n = 20) and 8 to 14 yr olds (n = 18). Circulating betatrophin levels were measured using enzyme-linked immunosorbent assay (ELISA). In addition, clinical data were recorded and anthropometrical measurements were performed. RESULTS Circulating betatrophin levels were increased significantly in obese children and adolescents with insulin resistance (365.77 ± 30.86 pg/mL) compared with overweight or obese subjects without insulin resistance (274.25 ± 26.52 pg/mL; p < 0.05). However, no differences in betatrophin levels were seen between lean and overweight or obese children (323.18 ± 25.91 vs. 348.27 ± 18.91 pg/mL, respectively; p > 0.05). In the normal-weight cohort, males had higher serum betatrophin level than did females, and subjects <8 yr old had lower serum betatrophin levels compared with those >8 yr. Surprisingly, betatrophin concentrations were correlated negatively with body mass index (BMI), but not with the BMI Z-score, in non-insulin-resistant children and adolescents. CONCLUSIONS These results demonstrated that circulating betatrophin levels were increased in insulin-resistant obese children or adolescents and might act as a potential biomarker of insulin resistance in these populations. Furthermore, serum betatrophin concentrations might vary during the development of children and adolescents, as well as between genders.
Collapse
Affiliation(s)
- Shimin Wu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongjie Gao
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yumei Ma
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lina Fu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cai Zhang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoping Luo
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
39
|
Kao KT, Abidi N, Ranasinha S, Brown J, Rodda C, McCallum Z, Zacharin M, Simm PJ, Magnussen CG, Sabin MA. Low vitamin D is associated with hypertension in paediatric obesity. J Paediatr Child Health 2015; 51:1207-13. [PMID: 26059499 DOI: 10.1111/jpc.12935] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/28/2015] [Indexed: 12/16/2022]
Abstract
AIM The aim of this paper was to investigate the relationship between circulating 25-hydroxyvitamin D (25(OH)D) and cardio-metabolic risk factors in a large cohort of obese youth attending tertiary paediatric obesity services. METHODS We conducted a retrospective cross-sectional study. Data were retrospectively collected from all new consultations of children and adolescents attending obesity outpatient clinics between 2008 and 2011 at the two major paediatric hospitals in Melbourne, Australia. Information collected included demographics, anthropometry, blood pressure, pubertal staging, body composition and fasting serum levels of 25(OH)D, glucose, insulin, cholesterol, triglyceride, high-density lipoprotein, liver function, calcium and phosphate. RESULTS 25(OH)D data were available in 229 patients (age 3-18 years; 116 men; mean (standard deviation) body mass index ( BMI) Z-score 2.5 (0.5) ). One hundred four (45%) participants were 25(OH)D deficient (<50 nmol/L). Lower serum 25(OH)D levels were associated with higher BMI Z-score (P-trend = 0.001), total fat mass (P-trend = 0.009), systolic (P-trend = 0.03) and diastolic blood pressures(P-trend = 0.009). In multivariable-adjusted regression analysis, 25(OH)D was significantly lower in those with elevated blood pressure after adjustment for BMI(P-trend = 0.004) or total fat mass (P-trend = 0.01). CONCLUSION Overweight and obese youth attending specialist obesity services have a high prevalence of vitamin D deficiency. In this population, lower levels of vitamin D were seen in those with greater adiposity, and independent of this, in those who had higher blood pressure.
Collapse
Affiliation(s)
- Kung-Ting Kao
- Department of Endocrinology and Diabetes, The Royal Children's Hospital, Melbourne, Victoria, Australia.,Center for Hormone Research, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Nobia Abidi
- Department of Paediatrics, Monash University, Melbourne, Victoria, Australia
| | - Sanjeeva Ranasinha
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Justin Brown
- Department of Paediatrics, Monash University, Melbourne, Victoria, Australia.,Department of Paediatric Endocrinology and Diabetes, Monash Children's Hospital, Melbourne, Victoria, Australia
| | - Christine Rodda
- Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia.,Department of Paediatrics, Monash University, Melbourne, Victoria, Australia.,Western Centre for Health Research, Sunshine Hospital, Melbourne, Victoria, Australia
| | - Zoe McCallum
- Department of Endocrinology and Diabetes, The Royal Children's Hospital, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Margaret Zacharin
- Department of Endocrinology and Diabetes, The Royal Children's Hospital, Melbourne, Victoria, Australia.,Center for Hormone Research, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Peter J Simm
- Department of Endocrinology and Diabetes, The Royal Children's Hospital, Melbourne, Victoria, Australia.,Center for Hormone Research, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.,Department of Paediatric Endocrinology and Diabetes, Monash Children's Hospital, Melbourne, Victoria, Australia
| | - Costan G Magnussen
- Menzies Research Institute, University of Tasmania, Hobart, Tasmania, Australia.,Research Centre of Applied and Preventative Cardiovascular Medicine, University of Turku, Turku, Finland
| | - Matthew A Sabin
- Department of Endocrinology and Diabetes, The Royal Children's Hospital, Melbourne, Victoria, Australia.,Center for Hormone Research, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia.,Department of Paediatrics, Monash University, Melbourne, Victoria, Australia
| |
Collapse
|
40
|
Hirschler V, Maccallini G, Sanchez M, Gonzalez C, Molinari C. Association between triglyceride to HDL-C ratio and insulin resistance in indigenous Argentinean children. Pediatr Diabetes 2015; 16:606-12. [PMID: 25303644 DOI: 10.1111/pedi.12228] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2014] [Revised: 09/12/2014] [Accepted: 09/12/2014] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Insulin resistance is considered one of the major risk factors for the development of type 2 diabetes mellitus (T2DM). Thus, early identification, preferably by using simple and inexpensive diagnostic tools, is essential for preventing T2DM. Triglyceride (TG) to high-density lipoprotein cholesterol (HDL-C) ratio (TG/HDL-C) has been proposed as an inexpensive tool to identify individuals at high risk of T2DM. The objective of this study was to determine the relationship between insulin resistance and TG/HDL-C in indigenous Argentinean children. METHODS A cross-sectional study of 501 (243 boys) indigenous school children aged 10.0 ± 2.4 yr were assessed for anthropometry, lipids, glucose, and insulin levels from November 2011 to November 2013. Insulin resistance was defined as the upper third quartile of homeostasis model assessment (HOMA-IR). RESULTS The prevalence of overweight/obesity was 11.4% per Centers for Disease Control. Mean levels of various characteristics were: body mass index (BMI) 17.2 ± 2.6, HDL-C 39 ± 9 mg/dL, TGs 121 ± 58 mg/dL, TG/HDL-C 2.9 ± 1.8, glucose 77 ± 8 mg/dL, HOMA-IR 1.0 ± 0.8, and insulin 44 ± 9 mUI/L. Children in the higher quartiles of TG/HDL-C had significantly higher HOMA-IR values than children in the lower quartiles. Multiple linear regression analysis showed that TG/HDL-C was significantly associated with HOMA-IR (r² = 0.19) adjusted for age, gender, and BMI. Furthermore, for a 1-unit increase in log TG/HDL-C, the odds of being insulin resistant (HOMA-IR>III quartile) increased by 2.58 times [odds ratio (OR), 2.58 (1.63-4.05); p < 0.01], adjusted for age, gender, and BMI. CONCLUSION This study suggests that TG/HDL-C may be a good marker to identify insulin resistant indigenous Argentinean children.
Collapse
Affiliation(s)
- V Hirschler
- Universidad de Buenos Aires, Buenos Aires, Argentina
| | | | - M Sanchez
- Hidalgo Laboratories, Buenos Aires, Argentina
| | - C Gonzalez
- Universidad de Buenos Aires, Buenos Aires, Argentina
| | - C Molinari
- Universidad de Buenos Aires, Buenos Aires, Argentina
| |
Collapse
|
41
|
Fonvig CE, Chabanova E, Andersson EA, Ohrt JD, Pedersen O, Hansen T, Thomsen HS, Holm JC. 1H-MRS Measured Ectopic Fat in Liver and Muscle in Danish Lean and Obese Children and Adolescents. PLoS One 2015; 10:e0135018. [PMID: 26252778 PMCID: PMC4529156 DOI: 10.1371/journal.pone.0135018] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 07/16/2015] [Indexed: 01/14/2023] Open
Abstract
Objectives This cross sectional study aims to investigate the associations between ectopic lipid accumulation in liver and skeletal muscle and biochemical measures, estimates of insulin resistance, anthropometry, and blood pressure in lean and overweight/obese children. Methods Fasting plasma glucose, serum lipids, serum insulin, and expressions of insulin resistance, anthropometry, blood pressure, and magnetic resonance spectroscopy of liver and muscle fat were obtained in 327 Danish children and adolescents aged 8–18 years. Results In 287 overweight/obese children, the prevalences of hepatic and muscular steatosis were 31% and 68%, respectively, whereas the prevalences in 40 lean children were 3% and 10%, respectively. A multiple regression analysis adjusted for age, sex, body mass index z-score (BMI SDS), and pubertal development showed that the OR of exhibiting dyslipidemia was 4.2 (95%CI: [1.8; 10.2], p = 0.0009) when hepatic steatosis was present. Comparing the simultaneous presence of hepatic and muscular steatosis with no presence of steatosis, the OR of exhibiting dyslipidemia was 5.8 (95%CI: [2.0; 18.6], p = 0.002). No significant associations between muscle fat and dyslipidemia, impaired fasting glucose, or blood pressure were observed. Liver and muscle fat, adjusted for age, sex, BMI SDS, and pubertal development, associated to BMI SDS and glycosylated hemoglobin, while only liver fat associated to visceral and subcutaneous adipose tissue and intramyocellular lipid associated inversely to high density lipoprotein cholesterol. Conclusion Hepatic steatosis is associated with dyslipidemia and liver and muscle fat depositions are linked to obesity-related metabolic dysfunctions, especially glycosylated hemoglobin, in children and adolescents, which suggest an increased cardiovascular disease risk.
Collapse
Affiliation(s)
- Cilius Esmann Fonvig
- The Children’s Obesity Clinic, Department of Pediatrics, Copenhagen University Hospital Holbæk, Holbæk, Denmark
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, Faculty of Medical and Health Sciences, University of Copenhagen, Copenhagen Ø, Denmark
- * E-mail:
| | - Elizaveta Chabanova
- Department of Diagnostic Radiology, Copenhagen University Hospital Herlev, Herlev, Denmark
| | - Ehm Astrid Andersson
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, Faculty of Medical and Health Sciences, University of Copenhagen, Copenhagen Ø, Denmark
| | - Johanne Dam Ohrt
- The Children’s Obesity Clinic, Department of Pediatrics, Copenhagen University Hospital Holbæk, Holbæk, Denmark
| | - Oluf Pedersen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, Faculty of Medical and Health Sciences, University of Copenhagen, Copenhagen Ø, Denmark
| | - Torben Hansen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, Faculty of Medical and Health Sciences, University of Copenhagen, Copenhagen Ø, Denmark
- University of Southern Denmark, Faculty of Health Sciences, Odense, Denmark
| | - Henrik S. Thomsen
- Department of Diagnostic Radiology, Copenhagen University Hospital Herlev, Herlev, Denmark
- University of Copenhagen, Faculty of Medical and Health Sciences, Copenhagen N, Denmark
| | - Jens-Christian Holm
- The Children’s Obesity Clinic, Department of Pediatrics, Copenhagen University Hospital Holbæk, Holbæk, Denmark
- University of Copenhagen, Faculty of Medical and Health Sciences, Copenhagen N, Denmark
| |
Collapse
|
42
|
Shaibi GQ, Ryder JR, Kim JY, Barraza E. Exercise for obese youth: refocusing attention from weight loss to health gains. Exerc Sport Sci Rev 2015; 43:41-7. [PMID: 25390295 DOI: 10.1249/jes.0000000000000034] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Despite evidence to the contrary, exercise interventions for obese youth target weight loss as a means of improving health. Using Exercise is Medicine® as a framework, we present a conceptual model for the beneficial effects of exercise independent of weight loss in obese youth and highlight novel biomarkers of cardiometabolic health that could prove useful as interventional targets for this population.
Collapse
Affiliation(s)
- Gabriel Q Shaibi
- 1College of Nursing and Health Innovation, 2School of Nutrition and Health Promotion, and 3Southwest Interdisciplinary Research Center, Arizona State University; and 4Division of Endocrinology and Diabetes, Phoenix Children's Hospital, Phoenix, AZ
| | | | | | | |
Collapse
|