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Monasso GS, Hoang TT, Mancano G, Fernández-Barrés S, Dou J, Jaddoe VW, Page CM, Johnson L, Bustamante M, Bakulski KM, Håberg SE, Ueland PM, Battram T, Merid SK, Melén E, Caramaschi D, Küpers LK, Sunyer J, Nystad W, Heil SG, Schmidt RJ, Vrijheid M, Sharp GC, London SJ, Felix JF. A meta-analysis of epigenome-wide association studies on pregnancy vitamin B12 concentrations and offspring DNA methylation. Epigenetics 2023; 18:2202835. [PMID: 37093107 PMCID: PMC10128528 DOI: 10.1080/15592294.2023.2202835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 12/22/2022] [Accepted: 01/06/2023] [Indexed: 04/25/2023] Open
Abstract
Circulating vitamin B12 concentrations during pregnancy are associated with offspring health. Foetal DNA methylation changes could underlie these associations. Within the Pregnancy And Childhood Epigenetics Consortium, we meta-analysed epigenome-wide associations of circulating vitamin B12 concentrations in mothers during pregnancy (n = 2,420) or cord blood (n = 1,029), with cord blood DNA methylation. Maternal and newborn vitamin B12 concentrations were associated with DNA methylation at 109 and 7 CpGs, respectively (False Discovery Rate P-value <0.05). Persistent associations with DNA methylation in the peripheral blood of up to 482 children aged 4-10 y were observed for 40.7% of CpGs associated with maternal vitamin B12 and 57.1% of CpGs associated with newborn vitamin B12. Of the CpGs identified in the maternal meta-analyses, 4.6% were associated with either birth weight or gestational age in a previous work. For the newborn meta-analysis, this was the case for 14.3% of the identified CpGs. Also, of the CpGs identified in the newborn meta-analysis, 14.3% and 28.6%, respectively, were associated with childhood cognitive skills and nonverbal IQ. Of the 109 CpGs associated with maternal vitamin B12, 18.3% were associated with nearby gene expression. In this study, we showed that maternal and newborn vitamin B12 concentrations are associated with DNA methylation at multiple CpGs in offspring blood (PFDR<0.05). Whether this differential DNA methylation underlies associations of vitamin B12 concentrations with child health outcomes, such as birth weight, gestational age, and childhood cognition, should be further examined in future studies.
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Affiliation(s)
- Giulietta S. Monasso
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Thanh T. Hoang
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, Durham, NC, USA
| | - Giulia Mancano
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Bristol Medical School Population Health Sciences, University of Bristol, Bristol, UK
| | - Sílvia Fernández-Barrés
- ISGlobal, Bacelona Institute for Global Health, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), madrid,Barcelona, Spain
| | - John Dou
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, USA
| | - Vincent W.V. Jaddoe
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Christian M. Page
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
- Department of Mathematics, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
| | - Laura Johnson
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Centre for Exercise, Nutrition and Health Sciences, School for Policy Studies, University of Bristol, Bristol, UK
| | - Mariona Bustamante
- ISGlobal, Bacelona Institute for Global Health, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), madrid,Barcelona, Spain
| | - Kelly M. Bakulski
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, USA
| | - Siri E. Håberg
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
| | | | - Thomas Battram
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - Simon K. Merid
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Sciences and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Erik Melén
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Sciences and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs’ Children’s Hospital, South General Hospital, Stockholm, Sweden
| | - Doretta Caramaschi
- College of Life and Environmental Sciences, Department of Psychology, University of Exeter, Exeter, UK
| | - Leanne K. Küpers
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Jordi Sunyer
- ISGlobal, Bacelona Institute for Global Health, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), madrid,Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Wenche Nystad
- Department of Chronic Diseases and Ageing, Norwegian Institute of Public Health, Oslo, Norway
| | - Sandra G. Heil
- Department of Clinical Chemistry, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Rebecca J. Schmidt
- Department of Public Health Sciences, School of Medicine, University of California Davis, Davis, USA
- The UC Davis MIND Institute, School of Medicine, University of California Davis, Sacramento, USA
| | - Martine Vrijheid
- ISGlobal, Bacelona Institute for Global Health, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), madrid,Barcelona, Spain
| | - Gemma C. Sharp
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Bristol Medical School Population Health Sciences, University of Bristol, Bristol, UK
| | - Stephanie J. London
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, Durham, NC, USA
| | - Janine F. Felix
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
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Wolffenbuttel BH, Owen PJ, Ward M, Green R. Vitamin B 12. BMJ 2023; 383:e071725. [PMID: 37984968 PMCID: PMC10658777 DOI: 10.1136/bmj-2022-071725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Affiliation(s)
| | - P Julian Owen
- Department of Trauma and Orthopaedics, Addenbrooke's, Cambridge University Hospitals NHS Trust, Cambridge, UK
| | - Mary Ward
- Nutrition Innovation Centre for Food and Health, School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland
| | - Ralph Green
- Department of Pathology and Laboratory Medicine, University of California Davis, Sacramento, CA, USA
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Wang Y, Wang Y, Sun Y, Zhang N, Liang X, Luo S, Dai L, Sun C, Yang Y, Li S, Zhang X, Zhang Q. Serum folate mediates the associations of MTHFR rs1801133 polymorphism with blood glucose levels and gestational diabetes mellitus in Chinese Han pregnant women. Br J Nutr 2023; 130:1329-1337. [PMID: 36756752 DOI: 10.1017/s0007114523000314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
This study aimed to explore the mediation effects of one-carbon metabolism (OCM) related nutrients on the association between MTHFR rs1801133 polymorphism and gestational diabetes mellitus (GDM). Folate, vitamin B12 and homocysteine (Hcy) were measured in the serum of 1254 pregnant women. Linear and logistic regressions were used to estimate the associations of OCM nutrients and MTHFR rs1801133 polymorphism with blood glucose levels and GDM risk. Mediation analysis was applied to test the mediation effects of folate, vitamin B12 and Hcy on the association of MTHFR rs1801133 polymorphism with blood glucose concentrations and GDM. Pregnant women with MTHFR rs1801133 CC genotype had higher serum folate (10·75 v. 8·90 and 9·40 ng/ml) and lower serum Hcy (4·84 v. 4·93 and 5·20 μmol/l) than those with CT and TT genotypes. Folate concentrations were positively associated with fasting plasma glucose (FPG), 1-h plasma glucose (1-h PG), 2-h plasma glucose (2-h PG) and GDM risk. Vitamin B12 levels were negatively correlated with FPG and GDM. Although no direct association was found between MTHFR rs1801133 genotypes and GDM, there were significant indirect effects of MTHFR rs1801133 CC genotype on FPG (β: 0·005; 95 % CI: 0·001, 0·013), 1-h PG (β: 0·006; 95 % CI: 0·001, 0·014), 2-h PG (β: 0·007; 95 % CI: 0·001, 0·015) and GDM (β: 0·006; 95 % CI: 0·001, 0·014) via folate. In conclusion, serum folate mediates the effect of MTHFR rs1801133 on blood glucose levels and GDM. Our findings potentially provide a feasible GDM prevention strategy via individualised folate supplementation according to the MTHFR genotypes.
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Affiliation(s)
- Yunguo Wang
- Department of Orthopedics Surgery, Second Hospital of Tianjin Medical University, Tianjin Medical University, Tianjin300211, People's Republic of China
| | - Yiyun Wang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin300070, People's Republic of China
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, School of Public Health, Tianjin Medical University, Tianjin300070, People's Republic of China
| | - Yao Sun
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin300070, People's Republic of China
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, School of Public Health, Tianjin Medical University, Tianjin300070, People's Republic of China
| | - Naijian Zhang
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, School of Public Health, Tianjin Medical University, Tianjin300070, People's Republic of China
| | - Xiaoshan Liang
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, School of Public Health, Tianjin Medical University, Tianjin300070, People's Republic of China
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin300070, People's Republic of China
| | - Suhui Luo
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, School of Public Health, Tianjin Medical University, Tianjin300070, People's Republic of China
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin300070, People's Republic of China
| | - Lirong Dai
- Community Health Service Center of Yangliuqing Town, Tianjin300380, People's Republic of China
| | - Chao Sun
- Community Health Service Center of Yangliuqing Town, Tianjin300380, People's Republic of China
| | - Yungui Yang
- Community Health Service Center of Zhangjiawo Town, Tianjin300393, People's Republic of China
| | - Shuying Li
- Department of Endocrinology, Tianjin Xiqing Hospital, Tianjin300380, People's Republic of China
| | - Xumei Zhang
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, School of Public Health, Tianjin Medical University, Tianjin300070, People's Republic of China
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin300070, People's Republic of China
| | - Qiang Zhang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin300070, People's Republic of China
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, School of Public Health, Tianjin Medical University, Tianjin300070, People's Republic of China
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AlEjielat R, Khaleel A, Batarseh YS, Abu-Qatouseh L, Al-Wawi S, AlSunna T. SNP rs11185644 in RXRA gene and SNP rs2235544 in DIO1 gene predict dosage requirements in a cross-sectional sample of hypothyroid patients. BMC Endocr Disord 2023; 23:167. [PMID: 37563580 PMCID: PMC10413766 DOI: 10.1186/s12902-023-01425-z] [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: 01/17/2023] [Accepted: 07/27/2023] [Indexed: 08/12/2023] Open
Abstract
BACKGROUND AND PURPOSE Primary hypothyroidism due to abnormality in the thyroid gland is the most common endocrine disease The recommended starting dose of levothyroxine replacement therapy is 1.6 µg/kg. This dose however is not optimal for every patient and dose adjustments are frequently done. Genetic polymorphisms in the absorption and metabolism pathway of levothyroxine are likely to influence its dose requirements. This study aimed to study the influence of genetic polymorphisms on levothyroxine replacement requirements. METHODS This was a cross-sectional study. Participants were recruited through a private nutrition clinic and through announcements distributed in the University of Petra in Amman, Jordan between September 2020 and February 2021. Hypothyroid patients had already been on stable doses of levothyroxine for the previous 3 months. A questionnaire was distributed to collect demographic and clinical information and a blood sample was taken for DNA extraction and clinical biochemistry analysis. rs11249460, rs2235544, rs225014, rs225015, rs3806596, rs11185644, rs4588, rs602662 were analyzed using Applied Biosystems TaqMan™ SNP Genotyping Assays on Rotor-Gene® Q and rs3064744 by direct sequencing. SPSS and Excel were used to perform analysis. RESULTS 76 patients were studied. The equation we calculated to find predicted daily dose of levothyroxine (mcg/kg) is 3.22+ (0.348 for CT genotype of rs11185644, 0 for other genotypes) + 0.027*disease duration (years) - 0.014*age (years) - 0.434*T3 (pmol/L) levels+ (0.296 for CC genotype of rs2235544, 0 for other genotypes). CONCLUSION SNP rs11185644 in RXRA gene and SNP rs2235544 in DIO1 affect dose requirement in hypothyroid patients and if confirmed in larger trials they can be used to individualize thyroxine starting doses.
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Affiliation(s)
- Rowan AlEjielat
- Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan.
| | - Anas Khaleel
- Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan
| | - Yazan S Batarseh
- Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan
| | - Luay Abu-Qatouseh
- Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan
| | - Suzan Al-Wawi
- Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan
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Plotnikoff GA, Dobberstein L, Raatz S. Nutritional Assessment of the Symptomatic Patient on a Plant-Based Diet: Seven Key Questions. Nutrients 2023; 15:1387. [PMID: 36986117 PMCID: PMC10056340 DOI: 10.3390/nu15061387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/01/2023] [Accepted: 03/10/2023] [Indexed: 03/15/2023] Open
Abstract
Plant-based diets, both vegan and vegetarian, which emphasize grains, vegetables, fruits, legumes, nuts, and seeds are increasingly popular for health as well as financial, ethical, and religious reasons. The medical literature clearly demonstrates that whole food plant-based diets can be both nutritionally sufficient and medically beneficial. However, any person on an intentionally restrictive, but poorly-designed diet may predispose themselves to clinically-relevant nutritional deficiencies. For persons on a poorly-designed plant-based diet, deficiencies are possible in both macronutrients (protein, essential fatty acids) and micronutrients (vitamin B12, iron, calcium, zinc, and vitamin D). Practitioner evaluation of symptomatic patients on a plant-based diet requires special consideration of seven key nutrient concerns for plant-based diets. This article translates these concerns into seven practical questions that all practitioners can introduce into their patient assessments and clinical reasoning. Ideally, persons on plant-based diets should be able to answer these seven questions. Each serves as a heuristic prompt for both clinician and patient attentiveness to a complete diet. As such, these seven questions support increased patient nutrition knowledge and practitioner capacity to counsel, refer, and appropriately focus clinical resources.
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Affiliation(s)
| | | | - Susan Raatz
- Department of Food Science and Nutrition, University of Minnesota, Minneapolis, MN 55455, USA
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6
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Ahmed SS, El-Hafez HAA, Mohsen M, El-Baiomy AA, Elkhamisy ET, El-Eshmawy MM. Is vitamin B12 deficiency a risk factor for gastroparesis in patients with type 2 diabetes? Diabetol Metab Syndr 2023; 15:33. [PMID: 36855172 PMCID: PMC9976380 DOI: 10.1186/s13098-023-01005-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 02/19/2023] [Indexed: 03/02/2023] Open
Abstract
BACKGROUND Diabetic gastroparesis is a severe diabetic complication refers to delayed gastric emptying in the absence of mechanical obstruction of the stomach. Vitamin B12 affects the dynamics of autonomic nervous system and its deficits has been linked to cardiovascular autonomic neuropathy therefore, vitamin B12 deficiency was hypothesized to be implicated in the development of diabetic gastroparesis. This study was conducted to explore the possible association between vitamin B12 deficiency and gastroparesis in patients with type 2 diabetes (T2D). METHODS A total of 100 T2D patients with diabetes duration > 10 years and 50 healthy controls matched for age and sex were recruited for this study. T2D patients were divided into 2 groups: patients with gastroparesis and patients without gastroparesis. The diagnosis of gastroparesis was based on Gastroparesis Cardinal Symptom Index (GCSI) Score ≥ 1.9 and ultrasonographic findings including gastric emptying ˂ 35.67% and motility index ˂ 5.1. Anthropometric measurements, plasma glucose, glycosylated hemoglobin (HbA1c), lipids profile, vitamin B12 and transabdominal ultrasonography were assessed. RESULTS The frequency of vitamin B12 deficiency in total patients with T2D was 35% (54.5% in patients with gastroparesis vs. 11.1% in patients without gastroparesis, P < 0. 001). Vitamin B12 level was negatively correlated with GCSI Score whereas, it was positively correlated with gastric emptying and motility index. Vitamin B12 deficiency was an independent predictor for gastroparesis in patients with T2D; it predicts gastroparesis at a cut off value of 189.5 pmol/L with 69.1% sensitivity and 64.4% specificity, P = 0.002. CONCLUSIONS Beside the known risk factors of diabetic gastroparesis, vitamin B12 deficiency is an independent predictor of diabetic gastroparesis in patients with T2D.
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Affiliation(s)
- Sally S. Ahmed
- Internal Medicine Department, Faculty of Medicine, Mansoura Specialized Medical Hospital, Mansoura University, Box: 35516, Mansoura, Egypt
| | - Hala A. Abd El-Hafez
- Internal Medicine Department, Faculty of Medicine, Mansoura Specialized Medical Hospital, Mansoura University, Box: 35516, Mansoura, Egypt
| | - Mohamed Mohsen
- Radiology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Azza A. El-Baiomy
- Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Enas T. Elkhamisy
- Internal Medicine Department, Faculty of Medicine, Mansoura Specialized Medical Hospital, Mansoura University, Box: 35516, Mansoura, Egypt
| | - Mervat M. El-Eshmawy
- Internal Medicine Department, Faculty of Medicine, Mansoura Specialized Medical Hospital, Mansoura University, Box: 35516, Mansoura, Egypt
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7
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Guevara-Ramírez P, Cadena-Ullauri S, Ruiz-Pozo VA, Tamayo-Trujillo R, Paz-Cruz E, Simancas-Racines D, Zambrano AK. Genetics, genomics, and diet interactions in obesity in the Latin American environment. Front Nutr 2022; 9:1063286. [PMID: 36532520 PMCID: PMC9751379 DOI: 10.3389/fnut.2022.1063286] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 10/25/2022] [Indexed: 08/25/2023] Open
Abstract
Obesity is a chronic disease characterized by abnormal or excessive fat accumulation that could impact an individual's health; moreover, the World Health Organization (WHO) has declared obesity a global epidemic since 1997. In Latin America, in 2016, reports indicated that 24.2% of the adult population was obese. The environmental factor or specific behaviors like dietary intake or physical activity have a vital role in the development of a condition like obesity, but the interaction of genes could contribute to that predisposition. Hence, it is vital to understand the relationship between genes and disease. Indeed, genetics in nutrition studies the genetic variations and their effect on dietary response; while genomics in nutrition studies the role of nutrients in gene expression. The present review represents a compendium of the dietary behaviors in the Latin American environment and the interactions of genes with their single nucleotide polymorphisms (SNPs) associated with obesity, including the risk allele frequencies in the Latin American population. Additionally, a bibliographical selection of several studies has been included; these studies examined the impact that dietary patterns in Latin American environments have on the expression of numerous genes involved in obesity-associated metabolic pathways.
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Affiliation(s)
- Patricia Guevara-Ramírez
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Santiago Cadena-Ullauri
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Viviana A. Ruiz-Pozo
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Rafael Tamayo-Trujillo
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Elius Paz-Cruz
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Daniel Simancas-Racines
- Centro de Investigación en Salud Pública y Epidemiología Clínica (CISPEC), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Ana Karina Zambrano
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
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Genetic Aspects of Micronutrients Important for Inflammatory Bowel Disease. Life (Basel) 2022; 12:life12101623. [PMID: 36295058 PMCID: PMC9604584 DOI: 10.3390/life12101623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/07/2022] [Accepted: 10/08/2022] [Indexed: 11/16/2022] Open
Abstract
Inflammatory bowel disease (IBD), Crohn’s disease (CD) and ulcerative colitis (UC) are complex diseases whose etiology is associated with genetic and environmental risk factors, among which are diet and gut microbiota. To date, IBD is an incurable disease and the main goal of its treatment is to reduce symptoms, prevent complications, and improve nutritional status and the quality of life. Patients with IBD usually suffer from nutritional deficiency with imbalances of specific micronutrient levels that contribute to the further deterioration of the disease. Therefore, along with medications usually used for IBD treatment, therapeutic strategies also include the supplementation of micronutrients such as vitamin D, folic acid, iron, and zinc. Micronutrient supplementation tailored according to individual needs could help patients to maintain overall health, avoid the triggering of symptoms, and support remission. The identification of individuals’ genotypes associated with the absorption, transport and metabolism of micronutrients can modify future clinical practice in IBD and enable individualized treatment. This review discusses the personalized approach with respect to genetics related to micronutrients commonly used in inflammatory bowel disease treatment.
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Zhang TP, Li R, Wang LJ, Tang F, Li HM. Clinical relevance of vitamin B12 level and vitamin B12 metabolic gene variation in pulmonary tuberculosis. Front Immunol 2022; 13:947897. [PMID: 36275653 PMCID: PMC9583150 DOI: 10.3389/fimmu.2022.947897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 09/09/2022] [Indexed: 11/14/2022] Open
Abstract
The aim of this study was to assess the association of vitamin B12 level and single nucleotide polymorphisms (SNPs) in vitamin B12 metabolic genes with pulmonary tuberculosis (PTB) in Chinese Han population. The plasma vitamin B12 expression level was detected using ELISA. Ten SNPs in six key genes (TCN1, TCN2, CUBN, MMACHC, FUT6, and MUT) of vitamin B12 metabolic pathway were included for genotyping by the SNPscan technique among 454 PTB patients and 467 controls. Our results found that vitamin B12 level was significantly reduced in PTB patients when compared with controls. There was no significant association between TCN1 rs526934, TCN2 rs1801198, CUBN rs7906242, rs10904861, rs1801222, MMACHC rs10789465, FUT6 rs3760776, rs3760775, MUT rs9473555, rs9381784 variants, and PTB susceptibility. TCN2 rs1801198 CC genotype, C allele was significantly associated with hypoproteinemia in PTB patients. In CUBN, rs7906242 GG genotype, G allele, rs10904861 TT genotype, and T allele were significantly related to the decreased frequency of sputum smear-positive, and rs10904861 variant affected the occurrence of drug resistance in PTB patients. In addition, the increased frequency of CUBN rs1801222 AA genotype was significantly associated with leukopenia. The decreased frequency of MUT rs9473555 CC genotype was found in the PTB patients with hypoproteinemia. However, vitamin B12 expression was not associated with the genotype distribution of above SNPs. In conclusion, vitamin B12 level was significantly decreased in PTB patients and genetic variants in vitamin B12 metabolic genes were not contributed to PTB susceptibility. Several SNPs in TCN2, CUBN, and MUT gene might associate with multiple clinical manifestations in PTB.
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Affiliation(s)
- Tian-Ping Zhang
- Department of Rheumatology and Immunology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Rui Li
- Department of Nosocomial Infection Management, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Li-Jun Wang
- Department of Infectious Diseases, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Fei Tang
- Department of Interventional Pulmonology and Endoscopic Diagnosis and Treatment Center, Anhui Chest Hospital, Hefei, China
- *Correspondence: Hong-Miao Li, ; Fei Tang,
| | - Hong-Miao Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
- *Correspondence: Hong-Miao Li, ; Fei Tang,
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A Pilot Study on the Prevalence of Micronutrient Imbalances in a Dutch General Population Cohort and the Effects of a Digital Lifestyle Program. Nutrients 2022; 14:nu14071426. [PMID: 35406037 PMCID: PMC9003341 DOI: 10.3390/nu14071426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/27/2022] [Accepted: 03/28/2022] [Indexed: 02/06/2023] Open
Abstract
Maintaining an adequate micronutrient status can be achieved by following a complete, diverse diet. Yet, food trends in Western countries show suboptimal consumption of healthy nutrients. In this study, we explored the prevalence of vitamin and mineral imbalances in a general population cohort of Dutch adults and evaluated the effect of a digital lifestyle program on the nutritional status and nutrition health behaviors of these individuals. A micronutrient panel was measured in 348 participants, alongside a dietary assessment. One hundred users subsequently underwent a remeasurement. We identified at least one nutritional imbalance in 301 individuals (86.5%). A total of 80% improved and normalized B6, 67% improved folate, 70% improved B12, and 86% improved vitamin D. Iron abnormalities were corrected in 75% of the participants. In conclusion, this study found that micronutrient deficiencies of easily obtainable vitamins through diet or supplementation such as B vitamins and vitamin D were more prevalent than expected in a Dutch population. This can partly be explained by insufficient consumption of food groups rich in B vitamins. Our preliminary results in those remeasured after a digitally enabled lifestyle intervention show these imbalances can be corrected with adequate behavioral support complemented with supplementation where needed.
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Katsa ME, Gil APR. Vitamin B-Related Gene Polymorphisms and Cardiovascular Disease. Endocr Metab Immune Disord Drug Targets 2022; 22:979-984. [PMID: 35346016 DOI: 10.2174/1381612828666220328115605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 01/29/2022] [Accepted: 02/11/2022] [Indexed: 11/22/2022]
Abstract
Hyperhomocysteinemia is an independent risk factor for atherosclerosis, even in early childhood. A mutation in genes which code homocysteine metabolism enzymes or deficiency of specific vitamin cofactors may cause hyperhomocysteinemia. Vitamin B complex has been correlated with serum homocysteine levels. Any abnormality in its metabolism or nutritional deficiency may lead to hyperhomocysteinemia. Both vitamin B complex and homocysteine levels are partly genetically determined. Specifically, the most studied polymorphism is 677T-C in exon 5 of the 5,10- methylenetetrahydrofolate reductase (MTHFR) gene, which plays an important role in folate's metabolism. This polymorphism has been shown correlated with hypertension and cardiovascular disease. Polymorphisms in methylenetetrahydrofolate dehydrogenase (NADP+ dependent) 1-like (MTHFD1L) gene have also been correlated with increased risk for coronary artery disease. Other common serious polymorphisms regard the area with high linkage disequilibrium, which included the neuroblastoma breakpoint family, NBPF3 gene, and ~ 12-50 kb upstream of the tissue nonspecific alkaline phosphatase gene. Finally, the polymorphisms which have been mostly associated with vitamin B12 concentration are the rs11254363 polymorphism at intron 52 of the intrinsic factor vitamin B12 receptor of the CUBN and the rs526934 polymorphism at intron 8 of transcobalamin I. To sum up, several polymorphisms have already been associated with vitamin B complexes and therefore homocysteine level, which highlights the complex nature of vitamin B genetics.
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Affiliation(s)
- Maria Efthymia Katsa
- Laboratory of Biology and Biochemistry, Faculty of Health Sciences, Department of Nursing, University of Peloponnese, Tripoli, Greece
- School of Health Sciences and Education, Department of Nutrition and Dietetics, Harokopio University, Athens, Greece
| | - Andrea Paola Rojas Gil
- Laboratory of Biology and Biochemistry, Faculty of Health Sciences, Department of Nursing, University of Peloponnese, Tripoli, Greece
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Associations of Maternal rs1801131 Genotype in MTHFR and Serum Folate and Vitamin B12 with Gestational Diabetes Mellitus in Chinese Pregnant Women. Nutrients 2022; 14:nu14061169. [PMID: 35334827 PMCID: PMC8954918 DOI: 10.3390/nu14061169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/07/2022] [Accepted: 03/08/2022] [Indexed: 02/07/2023] Open
Abstract
Circumstantial evidence links one-carbon metabolism (OCM) related nutrients, such as folate and vitamin B12, with gestational diabetes mellitus (GDM). However, few studies have evaluated the combined effects of these nutrients with OCM related gene polymorphisms on GDM. This study investigated whether OCM related genetic variants modified the associations of folate and B12 with GDM. Logistic regression was used to estimate odds ratios (ORs) for OCM related nutrients and single nucleotide polymorphisms (SNPs) in genes encoding main OCM related enzymes (MTHFR, MTR, and MTRR) on GDM. Higher folate concentrations were associated with increased GDM risk (OR: 1.59; 95% CI: 1.22, 2.13). However, higher B12 concentrations were associated with reduced GDM risk (OR: 0.76; 95% CI: 0.65, 0.92). Pregnancies with MTHFR rs1801131 G alleles had a significantly lower risk of GDM than pregnancies with T alleles (OR: 0.65; 95% CI: 0.47, 0.91) under the dominant model. The genotype-stratified analysis revealed the association between folate and GDM (OR: 1.66, 95% CI: 1.20, 2.30) or B12 and GDM (OR: 0.80, 95% CI: 0.65, 0.98) was more evident in pregnancies with TT genotype. Higher folate and lower B12 are associated with GDM. Pregnancies with MTHFR rs1801131 TT genotype are more susceptible to OCM nutrient-related GDM.
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Batista KS, Cintra VM, Lucena PAF, Manhães-de-Castro R, Toscano AE, Costa LP, Queiroz MEBS, de Andrade SM, Guzman-Quevedo O, Aquino JDS. The role of vitamin B12 in viral infections: a comprehensive review of its relationship with the muscle-gut-brain axis and implications for SARS-CoV-2 infection. Nutr Rev 2022; 80:561-578. [PMID: 34791425 PMCID: PMC8689946 DOI: 10.1093/nutrit/nuab092] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
This comprehensive review establishes the role of vitamin B12 as adjunct therapy for viral infections in the treatment and persistent symptoms of COVID-19, focusing on symptoms related to the muscle-gut-brain axis. Vitamin B12 can help balance immune responses to better fight viral infections. Furthermore, data from randomized clinical trials and meta-analysis indicate that vitamin B12 in the forms of methylcobalamin and cyanocobalamin may increase serum vitamin B12 levels, and resulted in decreased serum methylmalonic acid and homocysteine concentrations, and decreased pain intensity, memory loss, and impaired concentration. Among studies, there is much variation in vitamin B12 doses, chemical forms, supplementation time, and administration routes. Larger randomized clinical trials of vitamin B12 supplementation and analysis of markers such as total vitamin B12, holotranscobalamin, total homocysteine and methylmalonic acid, total folic acid, and, if possible, polymorphisms and methylation of genes need to be conducted with people with and without COVID-19 or who have had COVID-19 to facilitate the proper vitamin B12 form to be administered in individual treatment.
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Affiliation(s)
- Kamila S Batista
- K.S. Batista and J.d.S. Aquino are with the Experimental Nutrition Laboratory, Department of Nutrition and Post Graduate Program in Nutrition Sciences, Federal University of Paraíba, Paraíba, Brazil. V.M. Cintra and P.A.F Lucena are with the Department of Medicine, Faculty of Medical Sciences of Paraíba, and the Department of Nutrition, Integrated Colleges of Patos, Paraíba, Brazil. V.M. Cintra is with the the Multiprofessional Residence in Child Health of Secretariat of Health of the State of Paraíba, Brazil. P.A.F Lucena is with Coordination of Neurology Services, Hospital Metropolitano Dom José Maria Pires, Santa Rita, Paraíba and Emergency, Trauma Hospital Senador Humberto Lucena, João Pessoa, Paraíba, Brazil. R. Manhães-de-Castro is with the Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Pernambuco, Brazil. R. Manhães-de-Castro and A.E. Toscano are with the Post Graduate Program in Nutrition, Health Sciences Center, Federal University of Pernambuco, Recife, Pernambuco, Brazil. A.E. Toscano is with the Department of Nursing, CAV, Federal University of Pernambuco, Pernambuco, Brazil. A.E. Toscano and O. Guzman-Quevedo are with the Post Graduate Program in Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil. L.P. Costa, M.E.B.S. Queirozj, and S.M. de Andrade are with the Ageing and Neuroscience Laboratory, Health Sciences Center, Federal University of Paraíba, Paraíba, Brazil. O. Guzman-Quevedo is with the Higher Technological Institute of Tacámbaro, Tacámbaro, Michoacán, Mexico. O. Guzman-Quevedo is with the Center for Biomedical Research of Michoacán, Mexican Institute of Social Security, Morelia, Michoacán, Mexico
| | - Vanessa M Cintra
- K.S. Batista and J.d.S. Aquino are with the Experimental Nutrition Laboratory, Department of Nutrition and Post Graduate Program in Nutrition Sciences, Federal University of Paraíba, Paraíba, Brazil. V.M. Cintra and P.A.F Lucena are with the Department of Medicine, Faculty of Medical Sciences of Paraíba, and the Department of Nutrition, Integrated Colleges of Patos, Paraíba, Brazil. V.M. Cintra is with the the Multiprofessional Residence in Child Health of Secretariat of Health of the State of Paraíba, Brazil. P.A.F Lucena is with Coordination of Neurology Services, Hospital Metropolitano Dom José Maria Pires, Santa Rita, Paraíba and Emergency, Trauma Hospital Senador Humberto Lucena, João Pessoa, Paraíba, Brazil. R. Manhães-de-Castro is with the Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Pernambuco, Brazil. R. Manhães-de-Castro and A.E. Toscano are with the Post Graduate Program in Nutrition, Health Sciences Center, Federal University of Pernambuco, Recife, Pernambuco, Brazil. A.E. Toscano is with the Department of Nursing, CAV, Federal University of Pernambuco, Pernambuco, Brazil. A.E. Toscano and O. Guzman-Quevedo are with the Post Graduate Program in Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil. L.P. Costa, M.E.B.S. Queirozj, and S.M. de Andrade are with the Ageing and Neuroscience Laboratory, Health Sciences Center, Federal University of Paraíba, Paraíba, Brazil. O. Guzman-Quevedo is with the Higher Technological Institute of Tacámbaro, Tacámbaro, Michoacán, Mexico. O. Guzman-Quevedo is with the Center for Biomedical Research of Michoacán, Mexican Institute of Social Security, Morelia, Michoacán, Mexico
| | - Paulo A F Lucena
- K.S. Batista and J.d.S. Aquino are with the Experimental Nutrition Laboratory, Department of Nutrition and Post Graduate Program in Nutrition Sciences, Federal University of Paraíba, Paraíba, Brazil. V.M. Cintra and P.A.F Lucena are with the Department of Medicine, Faculty of Medical Sciences of Paraíba, and the Department of Nutrition, Integrated Colleges of Patos, Paraíba, Brazil. V.M. Cintra is with the the Multiprofessional Residence in Child Health of Secretariat of Health of the State of Paraíba, Brazil. P.A.F Lucena is with Coordination of Neurology Services, Hospital Metropolitano Dom José Maria Pires, Santa Rita, Paraíba and Emergency, Trauma Hospital Senador Humberto Lucena, João Pessoa, Paraíba, Brazil. R. Manhães-de-Castro is with the Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Pernambuco, Brazil. R. Manhães-de-Castro and A.E. Toscano are with the Post Graduate Program in Nutrition, Health Sciences Center, Federal University of Pernambuco, Recife, Pernambuco, Brazil. A.E. Toscano is with the Department of Nursing, CAV, Federal University of Pernambuco, Pernambuco, Brazil. A.E. Toscano and O. Guzman-Quevedo are with the Post Graduate Program in Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil. L.P. Costa, M.E.B.S. Queirozj, and S.M. de Andrade are with the Ageing and Neuroscience Laboratory, Health Sciences Center, Federal University of Paraíba, Paraíba, Brazil. O. Guzman-Quevedo is with the Higher Technological Institute of Tacámbaro, Tacámbaro, Michoacán, Mexico. O. Guzman-Quevedo is with the Center for Biomedical Research of Michoacán, Mexican Institute of Social Security, Morelia, Michoacán, Mexico
| | - Raul Manhães-de-Castro
- K.S. Batista and J.d.S. Aquino are with the Experimental Nutrition Laboratory, Department of Nutrition and Post Graduate Program in Nutrition Sciences, Federal University of Paraíba, Paraíba, Brazil. V.M. Cintra and P.A.F Lucena are with the Department of Medicine, Faculty of Medical Sciences of Paraíba, and the Department of Nutrition, Integrated Colleges of Patos, Paraíba, Brazil. V.M. Cintra is with the the Multiprofessional Residence in Child Health of Secretariat of Health of the State of Paraíba, Brazil. P.A.F Lucena is with Coordination of Neurology Services, Hospital Metropolitano Dom José Maria Pires, Santa Rita, Paraíba and Emergency, Trauma Hospital Senador Humberto Lucena, João Pessoa, Paraíba, Brazil. R. Manhães-de-Castro is with the Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Pernambuco, Brazil. R. Manhães-de-Castro and A.E. Toscano are with the Post Graduate Program in Nutrition, Health Sciences Center, Federal University of Pernambuco, Recife, Pernambuco, Brazil. A.E. Toscano is with the Department of Nursing, CAV, Federal University of Pernambuco, Pernambuco, Brazil. A.E. Toscano and O. Guzman-Quevedo are with the Post Graduate Program in Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil. L.P. Costa, M.E.B.S. Queirozj, and S.M. de Andrade are with the Ageing and Neuroscience Laboratory, Health Sciences Center, Federal University of Paraíba, Paraíba, Brazil. O. Guzman-Quevedo is with the Higher Technological Institute of Tacámbaro, Tacámbaro, Michoacán, Mexico. O. Guzman-Quevedo is with the Center for Biomedical Research of Michoacán, Mexican Institute of Social Security, Morelia, Michoacán, Mexico
| | - Ana E Toscano
- K.S. Batista and J.d.S. Aquino are with the Experimental Nutrition Laboratory, Department of Nutrition and Post Graduate Program in Nutrition Sciences, Federal University of Paraíba, Paraíba, Brazil. V.M. Cintra and P.A.F Lucena are with the Department of Medicine, Faculty of Medical Sciences of Paraíba, and the Department of Nutrition, Integrated Colleges of Patos, Paraíba, Brazil. V.M. Cintra is with the the Multiprofessional Residence in Child Health of Secretariat of Health of the State of Paraíba, Brazil. P.A.F Lucena is with Coordination of Neurology Services, Hospital Metropolitano Dom José Maria Pires, Santa Rita, Paraíba and Emergency, Trauma Hospital Senador Humberto Lucena, João Pessoa, Paraíba, Brazil. R. Manhães-de-Castro is with the Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Pernambuco, Brazil. R. Manhães-de-Castro and A.E. Toscano are with the Post Graduate Program in Nutrition, Health Sciences Center, Federal University of Pernambuco, Recife, Pernambuco, Brazil. A.E. Toscano is with the Department of Nursing, CAV, Federal University of Pernambuco, Pernambuco, Brazil. A.E. Toscano and O. Guzman-Quevedo are with the Post Graduate Program in Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil. L.P. Costa, M.E.B.S. Queirozj, and S.M. de Andrade are with the Ageing and Neuroscience Laboratory, Health Sciences Center, Federal University of Paraíba, Paraíba, Brazil. O. Guzman-Quevedo is with the Higher Technological Institute of Tacámbaro, Tacámbaro, Michoacán, Mexico. O. Guzman-Quevedo is with the Center for Biomedical Research of Michoacán, Mexican Institute of Social Security, Morelia, Michoacán, Mexico
| | - Larissa P Costa
- K.S. Batista and J.d.S. Aquino are with the Experimental Nutrition Laboratory, Department of Nutrition and Post Graduate Program in Nutrition Sciences, Federal University of Paraíba, Paraíba, Brazil. V.M. Cintra and P.A.F Lucena are with the Department of Medicine, Faculty of Medical Sciences of Paraíba, and the Department of Nutrition, Integrated Colleges of Patos, Paraíba, Brazil. V.M. Cintra is with the the Multiprofessional Residence in Child Health of Secretariat of Health of the State of Paraíba, Brazil. P.A.F Lucena is with Coordination of Neurology Services, Hospital Metropolitano Dom José Maria Pires, Santa Rita, Paraíba and Emergency, Trauma Hospital Senador Humberto Lucena, João Pessoa, Paraíba, Brazil. R. Manhães-de-Castro is with the Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Pernambuco, Brazil. R. Manhães-de-Castro and A.E. Toscano are with the Post Graduate Program in Nutrition, Health Sciences Center, Federal University of Pernambuco, Recife, Pernambuco, Brazil. A.E. Toscano is with the Department of Nursing, CAV, Federal University of Pernambuco, Pernambuco, Brazil. A.E. Toscano and O. Guzman-Quevedo are with the Post Graduate Program in Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil. L.P. Costa, M.E.B.S. Queirozj, and S.M. de Andrade are with the Ageing and Neuroscience Laboratory, Health Sciences Center, Federal University of Paraíba, Paraíba, Brazil. O. Guzman-Quevedo is with the Higher Technological Institute of Tacámbaro, Tacámbaro, Michoacán, Mexico. O. Guzman-Quevedo is with the Center for Biomedical Research of Michoacán, Mexican Institute of Social Security, Morelia, Michoacán, Mexico
| | - Maria E B S Queiroz
- K.S. Batista and J.d.S. Aquino are with the Experimental Nutrition Laboratory, Department of Nutrition and Post Graduate Program in Nutrition Sciences, Federal University of Paraíba, Paraíba, Brazil. V.M. Cintra and P.A.F Lucena are with the Department of Medicine, Faculty of Medical Sciences of Paraíba, and the Department of Nutrition, Integrated Colleges of Patos, Paraíba, Brazil. V.M. Cintra is with the the Multiprofessional Residence in Child Health of Secretariat of Health of the State of Paraíba, Brazil. P.A.F Lucena is with Coordination of Neurology Services, Hospital Metropolitano Dom José Maria Pires, Santa Rita, Paraíba and Emergency, Trauma Hospital Senador Humberto Lucena, João Pessoa, Paraíba, Brazil. R. Manhães-de-Castro is with the Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Pernambuco, Brazil. R. Manhães-de-Castro and A.E. Toscano are with the Post Graduate Program in Nutrition, Health Sciences Center, Federal University of Pernambuco, Recife, Pernambuco, Brazil. A.E. Toscano is with the Department of Nursing, CAV, Federal University of Pernambuco, Pernambuco, Brazil. A.E. Toscano and O. Guzman-Quevedo are with the Post Graduate Program in Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil. L.P. Costa, M.E.B.S. Queirozj, and S.M. de Andrade are with the Ageing and Neuroscience Laboratory, Health Sciences Center, Federal University of Paraíba, Paraíba, Brazil. O. Guzman-Quevedo is with the Higher Technological Institute of Tacámbaro, Tacámbaro, Michoacán, Mexico. O. Guzman-Quevedo is with the Center for Biomedical Research of Michoacán, Mexican Institute of Social Security, Morelia, Michoacán, Mexico
| | - Suellen M de Andrade
- K.S. Batista and J.d.S. Aquino are with the Experimental Nutrition Laboratory, Department of Nutrition and Post Graduate Program in Nutrition Sciences, Federal University of Paraíba, Paraíba, Brazil. V.M. Cintra and P.A.F Lucena are with the Department of Medicine, Faculty of Medical Sciences of Paraíba, and the Department of Nutrition, Integrated Colleges of Patos, Paraíba, Brazil. V.M. Cintra is with the the Multiprofessional Residence in Child Health of Secretariat of Health of the State of Paraíba, Brazil. P.A.F Lucena is with Coordination of Neurology Services, Hospital Metropolitano Dom José Maria Pires, Santa Rita, Paraíba and Emergency, Trauma Hospital Senador Humberto Lucena, João Pessoa, Paraíba, Brazil. R. Manhães-de-Castro is with the Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Pernambuco, Brazil. R. Manhães-de-Castro and A.E. Toscano are with the Post Graduate Program in Nutrition, Health Sciences Center, Federal University of Pernambuco, Recife, Pernambuco, Brazil. A.E. Toscano is with the Department of Nursing, CAV, Federal University of Pernambuco, Pernambuco, Brazil. A.E. Toscano and O. Guzman-Quevedo are with the Post Graduate Program in Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil. L.P. Costa, M.E.B.S. Queirozj, and S.M. de Andrade are with the Ageing and Neuroscience Laboratory, Health Sciences Center, Federal University of Paraíba, Paraíba, Brazil. O. Guzman-Quevedo is with the Higher Technological Institute of Tacámbaro, Tacámbaro, Michoacán, Mexico. O. Guzman-Quevedo is with the Center for Biomedical Research of Michoacán, Mexican Institute of Social Security, Morelia, Michoacán, Mexico
| | - Omar Guzman-Quevedo
- K.S. Batista and J.d.S. Aquino are with the Experimental Nutrition Laboratory, Department of Nutrition and Post Graduate Program in Nutrition Sciences, Federal University of Paraíba, Paraíba, Brazil. V.M. Cintra and P.A.F Lucena are with the Department of Medicine, Faculty of Medical Sciences of Paraíba, and the Department of Nutrition, Integrated Colleges of Patos, Paraíba, Brazil. V.M. Cintra is with the the Multiprofessional Residence in Child Health of Secretariat of Health of the State of Paraíba, Brazil. P.A.F Lucena is with Coordination of Neurology Services, Hospital Metropolitano Dom José Maria Pires, Santa Rita, Paraíba and Emergency, Trauma Hospital Senador Humberto Lucena, João Pessoa, Paraíba, Brazil. R. Manhães-de-Castro is with the Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Pernambuco, Brazil. R. Manhães-de-Castro and A.E. Toscano are with the Post Graduate Program in Nutrition, Health Sciences Center, Federal University of Pernambuco, Recife, Pernambuco, Brazil. A.E. Toscano is with the Department of Nursing, CAV, Federal University of Pernambuco, Pernambuco, Brazil. A.E. Toscano and O. Guzman-Quevedo are with the Post Graduate Program in Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil. L.P. Costa, M.E.B.S. Queirozj, and S.M. de Andrade are with the Ageing and Neuroscience Laboratory, Health Sciences Center, Federal University of Paraíba, Paraíba, Brazil. O. Guzman-Quevedo is with the Higher Technological Institute of Tacámbaro, Tacámbaro, Michoacán, Mexico. O. Guzman-Quevedo is with the Center for Biomedical Research of Michoacán, Mexican Institute of Social Security, Morelia, Michoacán, Mexico
| | - Jailane de S Aquino
- K.S. Batista and J.d.S. Aquino are with the Experimental Nutrition Laboratory, Department of Nutrition and Post Graduate Program in Nutrition Sciences, Federal University of Paraíba, Paraíba, Brazil. V.M. Cintra and P.A.F Lucena are with the Department of Medicine, Faculty of Medical Sciences of Paraíba, and the Department of Nutrition, Integrated Colleges of Patos, Paraíba, Brazil. V.M. Cintra is with the the Multiprofessional Residence in Child Health of Secretariat of Health of the State of Paraíba, Brazil. P.A.F Lucena is with Coordination of Neurology Services, Hospital Metropolitano Dom José Maria Pires, Santa Rita, Paraíba and Emergency, Trauma Hospital Senador Humberto Lucena, João Pessoa, Paraíba, Brazil. R. Manhães-de-Castro is with the Studies in Nutrition and Phenotypic Plasticity Unit, Department of Nutrition, Federal University of Pernambuco, Recife, Pernambuco, Brazil. R. Manhães-de-Castro and A.E. Toscano are with the Post Graduate Program in Nutrition, Health Sciences Center, Federal University of Pernambuco, Recife, Pernambuco, Brazil. A.E. Toscano is with the Department of Nursing, CAV, Federal University of Pernambuco, Pernambuco, Brazil. A.E. Toscano and O. Guzman-Quevedo are with the Post Graduate Program in Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Pernambuco, Brazil. L.P. Costa, M.E.B.S. Queirozj, and S.M. de Andrade are with the Ageing and Neuroscience Laboratory, Health Sciences Center, Federal University of Paraíba, Paraíba, Brazil. O. Guzman-Quevedo is with the Higher Technological Institute of Tacámbaro, Tacámbaro, Michoacán, Mexico. O. Guzman-Quevedo is with the Center for Biomedical Research of Michoacán, Mexican Institute of Social Security, Morelia, Michoacán, Mexico
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Matusheski NV, Caffrey A, Christensen L, Mezgec S, Surendran S, Hjorth MF, McNulty H, Pentieva K, Roager HM, Seljak BK, Vimaleswaran KS, Remmers M, Péter S. Diets, nutrients, genes and the microbiome: recent advances in personalised nutrition. Br J Nutr 2021; 126:1489-1497. [PMID: 33509307 PMCID: PMC8524424 DOI: 10.1017/s0007114521000374] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 01/13/2021] [Accepted: 01/23/2021] [Indexed: 12/28/2022]
Abstract
As individuals seek increasingly individualised nutrition and lifestyle guidance, numerous apps and nutrition programmes have emerged. However, complex individual variations in dietary behaviours, genotypes, gene expression and composition of the microbiome are increasingly recognised. Advances in digital tools and artificial intelligence can help individuals more easily track nutrient intakes and identify nutritional gaps. However, the influence of these nutrients on health outcomes can vary widely among individuals depending upon life stage, genetics and microbial composition. For example, folate may elicit favourable epigenetic effects on brain development during a critical developmental time window of pregnancy. Genes affecting vitamin B12 metabolism may lead to cardiometabolic traits that play an essential role in the context of obesity. Finally, an individual's gut microbial composition can determine their response to dietary fibre interventions during weight loss. These recent advances in understanding can lead to a more complete and integrated approach to promoting optimal health through personalised nutrition, in clinical practice settings and for individuals in their daily lives. The purpose of this review is to summarise presentations made during the DSM Science and Technology Award Symposium at the 13th European Nutrition Conference, which focused on personalised nutrition and novel technologies for health in the modern world.
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Affiliation(s)
- Nathan V. Matusheski
- Nutrition Science and Advocacy, DSM Nutritional Products LLC, Parsippany, NJ, USA
| | - Aoife Caffrey
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, ColeraineBT52 1SA, Northern Republic of Ireland
| | - Lars Christensen
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Frederiksberg, Denmark
| | - Simon Mezgec
- Jožef Stefan International Postgraduate School, Jamova cesta 39, 1000Ljubljana, Slovenia
| | - Shelini Surendran
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Whiteknights, ReadingRG6 6DZ, UK
| | - Mads F. Hjorth
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Frederiksberg, Denmark
| | - Helene McNulty
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, ColeraineBT52 1SA, Northern Republic of Ireland
| | - Kristina Pentieva
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, ColeraineBT52 1SA, Northern Republic of Ireland
| | - Henrik M. Roager
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Frederiksberg, Denmark
| | - Barbara Koroušić Seljak
- Computer Systems Department, Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Ljubljana, Slovenia
| | | | | | - Szabolcs Péter
- Nutrition Innovation Center, DSM Nutritional Products Ltd, Kaiseraugst, Switzerland
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15
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An open approach to systematically prioritize causal variants and genes at all published human GWAS trait-associated loci. Nat Genet 2021; 53:1527-1533. [PMID: 34711957 PMCID: PMC7611956 DOI: 10.1038/s41588-021-00945-5] [Citation(s) in RCA: 148] [Impact Index Per Article: 49.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 08/20/2021] [Indexed: 12/25/2022]
Abstract
Genome-wide association studies (GWASs) have identified many variants associated with complex traits, but identifying the causal gene(s) is a major challenge. In the present study, we present an open resource that provides systematic fine mapping and gene prioritization across 133,441 published human GWAS loci. We integrate genetics (GWAS Catalog and UK Biobank) with transcriptomic, proteomic and epigenomic data, including systematic disease-disease and disease-molecular trait colocalization results across 92 cell types and tissues. We identify 729 loci fine mapped to a single-coding causal variant and colocalized with a single gene. We trained a machine-learning model using the fine-mapped genetics and functional genomics data and 445 gold-standard curated GWAS loci to distinguish causal genes from neighboring genes, outperforming a naive distance-based model. Our prioritized genes were enriched for known approved drug targets (odds ratio = 8.1, 95% confidence interval = 5.7, 11.5). These results are publicly available through a web portal ( http://genetics.opentargets.org ), enabling users to easily prioritize genes at disease-associated loci and assess their potential as drug targets.
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16
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Vimaleswaran KS. GeNuIne (gene-nutrient interactions) Collaboration: towards implementing multi-ethnic population-based nutrigenetic studies of vitamin B 12 and D deficiencies and metabolic diseases. Proc Nutr Soc 2021; 80:1-11. [PMID: 34548115 DOI: 10.1017/s0029665121002822] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Gene-nutrient interactions (GeNuIne) collaboration, a large-scale collaborative project, has been initiated to investigate the impact of gene-nutrient interactions on cardiometabolic diseases using population-based studies from ethnically diverse populations. In this project, the relationship between deficiencies of vitamins B12 and D, and metabolic diseases was explored using a nutrigenetic approach. A genetic risk score (GRS) analysis was used to examine the combined effect of several genetic variations that have been shown to be associated with metabolic diseases and vitamin B12 and D deficiencies, respectively. In Sri Lankan, Indonesian and Brazilian populations, those carrying a high B12-GRS had an increased risk of metabolic diseases under the influence of dietary protein, fibre and carbohydrate intakes, respectively; however, in Asian Indians, genetically instrumented metabolic disease risk showed a significant association with low vitamin B12 status. With regards to nutrigenetic studies on vitamin D status, although high metabolic-GRS showed an interaction with dietary carbohydrate intake on vitamin D status, the study in Indonesian women demonstrated a vitamin D GRS-carbohydrate interaction on body fat percentage. In summary, these nutrigenetic studies from multiple ethnic groups have provided evidence for the influence of the dietary factors on the relationship between vitamin B12/D deficiency and metabolic outcomes. Furthermore, these studies highlight the existence of genetic heterogeneity in gene-diet interactions across ethnically diverse populations, which further implicates the significance of personalised dietary approaches for the prevention of these micronutrient deficiencies and metabolic diseases.
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Affiliation(s)
- Karani S Vimaleswaran
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading, UK
- The Institute for Food, Nutrition, and Health (IFNH), University of Reading, Reading, UK
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17
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Oh S, Cave G, Lu C. Vitamin B 12 (Cobalamin) and Micronutrient Fortification in Food Crops Using Nanoparticle Technology. FRONTIERS IN PLANT SCIENCE 2021; 12:668819. [PMID: 34497618 PMCID: PMC8419335 DOI: 10.3389/fpls.2021.668819] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 06/22/2021] [Indexed: 06/01/2023]
Abstract
It is necessary to develop a resilient food supply that will withstand unexpected future shocks and deliver the required amounts of nutrients to consumers. By increasing the sustainability of food and agriculture, the food system will be able to handle challenges such as climate change, declining agricultural resources, growing population/urbanization, pandemics, and recessions/shortages. Micronutrient deficiency, otherwise called hidden hunger, is one of the major malnutrition consequences worldwide, particularly in middle- or low- income countries. Unlike essential mineral or nutrient compounds, micronutrients could be less of a priority due to their small levels of requirement. However, insufficient micronutrients caused critical adverse health symptoms and are excessively vital for young children's development. Therefore, there have been numerous attempts to enhance minerals and nutrients in food crops, including biofortification, food fortification, and supplementation. Based on several interventions involving micronutrients, modern technology, such as nanotechnology, can be applied to enhance sustainability and to reduce the food system's environmental impact. Previous studies have addressed various strategies or interventions to mitigate major micronutrient deficiency including iron, iodine, zinc, and vitamin A. Comparably small amounts of studies have addressed vitamin B12 deficiency and its fortification in food crops. Vitamin B12 deficiency causes serious adverse health effects, including in the nervous or blood systems, and occurs along with other micronutrient deficiencies, such as folate, iron, and zinc, worldwide, particularly in middle- and low-income countries. Mitigation for B12 deficiency has mainly focused on developing pharmacological and medical treatments such as vitamin B12 serum or supplements. Further studies are required to undertake a sustainable approach to fortify vitamin B12 in plant-based food sources for public health worldwide. This review paper highlights nanoparticle application as a promising technology for enhancing vitamin B12 without conventional genetic modification requirements. The nanoparticle can efficiently deliver the mineral/nutrient using coating techniques to targeted sites into the plant. This is mainly because nanoparticles have better solubility and permeability due to their nano size with high surface exposure. Vitamin B12-coated nanoparticles would be absorbed, translocated, and accumulated by the plant and eventually enhance the bioavailability in food crops. Furthermore, by reducing adverse environmental effects, such as leaching issues that mainly occur with conventional fertilizer usage, it would be possible to develop more sustainable food fortification.
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Affiliation(s)
- Soojin Oh
- School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Nottingham, United Kingdom
| | - Gareth Cave
- School of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom
| | - Chungui Lu
- School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Nottingham, United Kingdom
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18
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Fuzo CA, da Veiga Ued F, Moco S, Cominetti O, Métairon S, Pruvost S, Charpagne A, Carayol J, Torrieri R, Silva WA, Descombes P, Kaput J, Monteiro JP. Contribution of genetic ancestry and polygenic risk score in meeting vitamin B12 needs in healthy Brazilian children and adolescents. Sci Rep 2021; 11:11992. [PMID: 34099811 PMCID: PMC8184816 DOI: 10.1038/s41598-021-91530-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 05/25/2021] [Indexed: 02/08/2023] Open
Abstract
Polymorphisms in genes related to the metabolism of vitamin B12 haven’t been examined in a Brazilian population.
To (a) determine the correlation between the local genetic ancestry components and vitamin B12 levels using ninety B12-related genes; (b) determine associations between these genes and their SNPs with vitamin B12 levels; (c) determine a polygenic risk score (PRS) using significant variants. This cross-sectional study included 168 children and adolescents, aged 9–13 years old. Total cobalamin was measured in plasma. Genotyping arrays and whole exome data were combined to yield ~ 7000 SNPs in 90 genes related to vitamin B12. The Efficient Local Ancestry Inference was used to estimate local ancestry for African (AFR), Native American, and European (EUR). The association between the genotypes and vitamin B12 levels were determined with generalized estimating equation.
Vitamin B12 levels were driven by positive (EUR) and negative (AFR, AMR) correlations with genetic ancestry. A set of 36 variants were used to create a PRS that explained 42% of vitamin level variation.
Vitamin B12 levels are influenced by genetic ancestry and a PRS explained almost 50% of the variation in plasma cobalamin in Brazilian children and adolescents.
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Affiliation(s)
- Carlos Alessandro Fuzo
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutics Sciences, University of São Paulo, Ribeirão Preto, Brazil
| | - Fábio da Veiga Ued
- Department of Pediatrics and Department of Health Sciences, Ribeirão Preto Medical School, Nutrition and Metabolism Section, University of São Paulo, Avenida Bandeirantes, 3900, Bairro Monte Alegre, Ribeirão Preto, SP, 14040-900, Brazil
| | - Sofia Moco
- Department of Chemistry and Pharmaceutical Sciences, Amsterdam Institute for Molecular and Life Sciences, Vrije Universiteite Amsterdam, Amsterdam, The Netherlands
| | - Ornella Cominetti
- Nestlé Research, Société Des Produits Nestlé SA, EPFL Innovation Park, H, 1015, Lausanne, Switzerland
| | - Sylviane Métairon
- Nestlé Research, Société Des Produits Nestlé SA, EPFL Innovation Park, H, 1015, Lausanne, Switzerland
| | - Solenn Pruvost
- Nestlé Research, Société Des Produits Nestlé SA, EPFL Innovation Park, H, 1015, Lausanne, Switzerland
| | - Aline Charpagne
- Nestlé Research, Société Des Produits Nestlé SA, EPFL Innovation Park, H, 1015, Lausanne, Switzerland.,Sophia Genetics, Campus Biotech, 1202, Geneva, Switzerland
| | - Jerome Carayol
- Nestlé Research, Société Des Produits Nestlé SA, EPFL Innovation Park, H, 1015, Lausanne, Switzerland
| | - Raul Torrieri
- Center for Medical Genomics, Ribeirão Preto Medical School Hospital, University of São Paulo, Ribeirão Preto, Brazil
| | - Wilson Araujo Silva
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Patrick Descombes
- Nestlé Research, Société Des Produits Nestlé SA, EPFL Innovation Park, H, 1015, Lausanne, Switzerland
| | - Jim Kaput
- Nestlé Research, Société Des Produits Nestlé SA, EPFL Innovation Park, H, 1015, Lausanne, Switzerland.,, Vydiant, Folsom, CA, USA
| | - Jacqueline Pontes Monteiro
- Department of Pediatrics and Department of Health Sciences, Ribeirão Preto Medical School, Nutrition and Metabolism Section, University of São Paulo, Avenida Bandeirantes, 3900, Bairro Monte Alegre, Ribeirão Preto, SP, 14040-900, Brazil.
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19
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Kwape L, Ocampo C, Oyekunle A, Mwita JC. Vitamin B12 deficiency in patients with diabetes at a specialised diabetes clinic, Botswana. JOURNAL OF ENDOCRINOLOGY, METABOLISM AND DIABETES OF SOUTH AFRICA 2021. [DOI: 10.1080/16089677.2021.1927586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- L Kwape
- Department of Medicine, Princess Marina Hospital, Gaborone, Botswana
| | - C Ocampo
- Department of Medicine, Princess Marina Hospital, Gaborone, Botswana
- Department of Internal Medicine, University of Botswana, Gaborone, Botswana
| | - A Oyekunle
- Department of Medicine, Princess Marina Hospital, Gaborone, Botswana
- Department of Internal Medicine, University of Botswana, Gaborone, Botswana
| | - JC Mwita
- Department of Medicine, Princess Marina Hospital, Gaborone, Botswana
- Department of Internal Medicine, University of Botswana, Gaborone, Botswana
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20
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O'Logbon J, Crook M, Steed D, Harrington DJ, Sobczyńska-Malefora A. Ethnicity influences total serum vitamin B 12 concentration: a study of Black, Asian and White patients in a primary care setting. J Clin Pathol 2021; 75:598-604. [PMID: 33952588 DOI: 10.1136/jclinpath-2021-207519] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/21/2021] [Accepted: 04/06/2021] [Indexed: 11/03/2022]
Abstract
AIMS A growing body of evidence suggests that ethnicity and race influence vitamin B12 metabolism and status yet clinical awareness of this is poor, causing doubts regarding diagnosis and treatment. Moreover, deficiency and insufficiency cut-offs are universally applied for this test in most diagnostic settings. The objective of this study was to assess serum vitamin B12 concentrations in Black, Asian and White primary care patients in London, UK, particularly in patients of Black or Black British ethnic origin and establish if there is a need for specific reference ranges. METHODS Serum B12 results from 49 414 patients were processed between January 2018 and November 2019 using the Architect assay (Abbott Diagnostics) at St. Thomas' Hospital, London, UK. Age, sex and ethnicity data were collected from the laboratory Health Informatics Team. RESULTS Black patients (n=13 806) were found to have significantly higher serum vitamin B12 concentration across all age groups and both sexes, especially Nigerian patients (median B12 505 pmol/L,IQR: 362-727, n=891), compared with Asian and White ethnic groups (p<0.001). Binary logistic regression analysis revealed that the Black or Black British ethnic group had the strongest association with elevated serum B12 (>652 pmol/L) (adjusted OR 3.38, 95% CI 3.17 to 3.61, p<0.0001). CONCLUSIONS It is likely that a combination of genetic and acquired/environmental factors are responsible for the ethnic differences in serum B12. This suggests that there is a need for ethnic-specific reference ranges with indications for the incorporation of age and sex too.
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Affiliation(s)
- Jessica O'Logbon
- GKT School of Medicine, King's College London Faculty of Life Sciences and Medicine, London, UK jessica.o'
| | - Martin Crook
- Clinical Biochemistry and Metabolic Medicine, Guy's, St Thomas' Trust, London, UK.,Clinical Biochemistry and Metabolic Medicine, Lewisham and Greenwich Trust, London, UK.,Hon Professor in Biochemical Medicine, King's College London, London, UK
| | - David Steed
- Viapath Informatics, Viapath, Francis House, St Thomas' Hospital, London, UK
| | - Dominic Jon Harrington
- Faculty of Life Sciences and Medicine, King's College London, London, UK.,The Nutristasis Unit, Viapath, St. Thomas' Hospital, London, UK
| | - Agata Sobczyńska-Malefora
- Faculty of Life Sciences and Medicine, King's College London, London, UK.,The Nutristasis Unit, Viapath, St. Thomas' Hospital, London, UK
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21
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Monasso GS, Küpers LK, Jaddoe VWV, Heil SG, Felix JF. Associations of circulating folate, vitamin B12 and homocysteine concentrations in early pregnancy and cord blood with epigenetic gestational age: the Generation R Study. Clin Epigenetics 2021; 13:95. [PMID: 33926538 PMCID: PMC8082638 DOI: 10.1186/s13148-021-01065-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 03/29/2021] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Circulating folate, vitamin B12 and homocysteine concentrations during fetal development have been associated with health outcomes in childhood. Changes in fetal DNA methylation may be an underlying mechanism. This may be reflected in altered epigenetic aging of the fetus, as compared to chronological aging. The difference between gestational age derived in clinical practice and gestational age predicted from neonatal DNA methylation data is referred to as gestational age acceleration. Differences in circulating folate, vitamin B12 and homocysteine concentrations during fetal development may be associated with gestational age acceleration. RESULTS Up to 1346 newborns participating in the Generation R Study, a population-based prospective cohort study, had both cord blood DNA methylation data available and information on plasma folate, serum total and active B12 and plasma homocysteine concentrations, measured in early pregnancy and/or in cord blood. A subgroup of 380 newborns had mothers with optimal pregnancy dating based on a regular menstrual cycle and a known date of last menstrual period. For comparison, gestational age acceleration was calculated based the method of both Bohlin and Knight. In the total study population, which was more similar to Bohlin's training population, one standard deviation score (SDS) higher maternal plasma homocysteine concentrations was nominally associated with positive gestational age acceleration [0.07 weeks, 95% confidence interval (CI) 0.02, 0.13] by Bohlin's method. In the subgroup with pregnancy dating based on last menstrual period, the method that was also used in Knight's training population, one SDS higher cord serum total and active B12 concentrations were nominally associated with negative gestational age acceleration [(- 0.16 weeks, 95% CI - 0.30, - 0.02) and (- 0.15 weeks, 95% CI - 0.29, - 0.01), respectively] by Knight's method. CONCLUSIONS We found some evidence to support associations of higher maternal plasma homocysteine concentrations with positive gestational age acceleration, suggesting faster epigenetic than clinical gestational aging. Cord serum vitamin B12 concentrations may be associated with negative gestational age acceleration, indicating slower epigenetic than clinical gestational aging. Future studies could examine whether altered fetal epigenetic aging underlies the associations of circulating homocysteine and vitamin B12 blood concentrations during fetal development with long-term health outcomes.
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Affiliation(s)
- Giulietta S Monasso
- The Generation R Study Group (Na-2918), Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.,Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Leanne K Küpers
- The Generation R Study Group (Na-2918), Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.,Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.,Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Vincent W V Jaddoe
- The Generation R Study Group (Na-2918), Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.,Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Sandra G Heil
- Department of Clinical Chemistry, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Janine F Felix
- The Generation R Study Group (Na-2918), Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands. .,Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.
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22
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Balabanova L, Averianova L, Marchenok M, Son O, Tekutyeva L. Microbial and Genetic Resources for Cobalamin (Vitamin B12) Biosynthesis: From Ecosystems to Industrial Biotechnology. Int J Mol Sci 2021; 22:ijms22094522. [PMID: 33926061 PMCID: PMC8123684 DOI: 10.3390/ijms22094522] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/23/2021] [Accepted: 04/23/2021] [Indexed: 12/12/2022] Open
Abstract
Many microbial producers of coenzyme B12 family cofactors together with their metabolically interdependent pathways are comprehensively studied and successfully used both in natural ecosystems dominated by auxotrophs, including bacteria and mammals, and in the safe industrial production of vitamin B12. Metabolic reconstruction for genomic and metagenomic data and functional genomics continue to mine the microbial and genetic resources for biosynthesis of the vital vitamin B12. Availability of metabolic engineering techniques and usage of affordable and renewable sources allowed improving bioprocess of vitamins, providing a positive impact on both economics and environment. The commercial production of vitamin B12 is mainly achieved through the use of the two major industrial strains, Propionobacterium shermanii and Pseudomonas denitrificans, that involves about 30 enzymatic steps in the biosynthesis of cobalamin and completely replaces chemical synthesis. However, there are still unresolved issues in cobalamin biosynthesis that need to be elucidated for future bioprocess improvements. In the present work, we review the current state of development and challenges for cobalamin (vitamin B12) biosynthesis, describing the major and novel prospective strains, and the studies of environmental factors and genetic tools effecting on the fermentation process are reported.
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Affiliation(s)
- Larissa Balabanova
- Department of Bioeconomy and Food Security, School of Economics and Management, Far Eastern Federal University, 690922 Vladivostok, Russia; (L.A.); (M.M.); (O.S.); (L.T.)
- Laboratory of Marine Biochemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 690022 Vladivostok, Russia
- ARNIKA, Territory of PDA Nadezhdinskaya, 692481 Primorskiy Region, Russia
- Correspondence:
| | - Liudmila Averianova
- Department of Bioeconomy and Food Security, School of Economics and Management, Far Eastern Federal University, 690922 Vladivostok, Russia; (L.A.); (M.M.); (O.S.); (L.T.)
- ARNIKA, Territory of PDA Nadezhdinskaya, 692481 Primorskiy Region, Russia
| | - Maksim Marchenok
- Department of Bioeconomy and Food Security, School of Economics and Management, Far Eastern Federal University, 690922 Vladivostok, Russia; (L.A.); (M.M.); (O.S.); (L.T.)
- ARNIKA, Territory of PDA Nadezhdinskaya, 692481 Primorskiy Region, Russia
| | - Oksana Son
- Department of Bioeconomy and Food Security, School of Economics and Management, Far Eastern Federal University, 690922 Vladivostok, Russia; (L.A.); (M.M.); (O.S.); (L.T.)
- ARNIKA, Territory of PDA Nadezhdinskaya, 692481 Primorskiy Region, Russia
| | - Liudmila Tekutyeva
- Department of Bioeconomy and Food Security, School of Economics and Management, Far Eastern Federal University, 690922 Vladivostok, Russia; (L.A.); (M.M.); (O.S.); (L.T.)
- ARNIKA, Territory of PDA Nadezhdinskaya, 692481 Primorskiy Region, Russia
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23
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Wahbeh F, Manyama M. The role of Vitamin B12 and genetic risk factors in the etiology of neural tube defects: A systematic review. Int J Dev Neurosci 2021; 81:386-406. [PMID: 33851436 DOI: 10.1002/jdn.10113] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/05/2021] [Accepted: 04/05/2021] [Indexed: 11/08/2022] Open
Abstract
Neural tube defects (NTDs) are birth defects that arise during embryogenesis when normal neural tube closure fails to occur. According to the World Health Organization, NTDs are detected annually in approximately 300,000 neonates worldwide. The exact etiology of NTDs remains complex and poorly understood. It is generally agreed that most NTD cases are of multifactorial origin, having a combination of multiple genes and a number of environmental risk factors. The role of folic acid, vitamin B12 deficiency, genetics and other risk factors, in the etiology of NTDs, has also been extensively studied. This knowledge synthesis brings together different types of evidence to update the role of vitamin B12 deficiency, genetics and other risk factors, in the etiology of NTDs. Following a PubMed search and screening for relevant articles, we included 40 studies in our review (30 case-control studies, 3 cross-sectional studies, 5 cohort studies, and 2 case reports). The available data showed that vitamin B12 levels were decreased in mothers and infants in NTD groups compared with control groups. Holo-transcobalamin, the active form of vitamin B12, was also found in lower levels in mothers with NTD-affected infants. Several studies reported elevated homocysteine levels in mothers and infants in NTD groups. Additionally, numerous studies reported links between genetic variants and increased NTD risk. These genes include GIF, LRP2, CUBN, TCb1R, MTHFR, and others. Several maternal factors have also been linked with significant NTD risk such as BMI, maternal diet, air pollutants, low maternal age, and many others. The majority of studies on NTDs have focused on the role of folic acid, hence there is a need for well-designed studies on the role of other risk factors like vitamin B12 deficiency in the etiology of NTDs.
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Affiliation(s)
- Farah Wahbeh
- Division of Medical Education, Weill Cornell Medicine - Qatar, Doha, Qatar
| | - Mange Manyama
- Division of Medical Education, Weill Cornell Medicine - Qatar, Doha, Qatar
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24
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Sobczyńska-Malefora A, Delvin E, McCaddon A, Ahmadi KR, Harrington DJ. Vitamin B 12 status in health and disease: a critical review. Diagnosis of deficiency and insufficiency - clinical and laboratory pitfalls. Crit Rev Clin Lab Sci 2021; 58:399-429. [PMID: 33881359 DOI: 10.1080/10408363.2021.1885339] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Vitamin B12 (cobalamin) is an essential cofactor for two metabolic pathways. It is obtained principally from food of animal origin. Cobalamin becomes bioavailable through a series of steps pertaining to its release from dietary protein, intrinsic factor-mediated absorption, haptocorrin or transcobalamin-mediated transport, cellular uptake, and two enzymatic conversions (via methionine synthase and methylmalonyl-CoA-mutase) into cofactor forms: methylcobalamin and adenosylcobalamin. Vitamin B12 deficiency can masquerade as a multitude of illnesses, presenting different perspectives from the point of view of the hematologist, neurologist, gastroenterologist, general physician, or dietician. Increased physician vigilance and heightened patient awareness often account for its early presentation, and testing sometimes occurs during a phase of vitamin B12 insufficiency before the main onset of the disease. The chosen test often depends on its availability rather than on the diagnostic performance and sensitivity to irrelevant factors interfering with vitamin B12 markers. Although serum B12 is still the most commonly used and widely available test, diagnostics by holotranscobalamin, serum methylmalonic acid, and plasma homocysteine measurements have grown in the last several years in routine practice. The lack of a robust absorption test, coupled with compromised sensitivity and specificity of other tests (intrinsic factor and gastric parietal cell antibodies), hinders determination of the cause for depleted B12 status. This can lead to incorrect supplementation regimes and uncertainty regarding later treatment. This review discusses currently available knowledge on vitamin B12, informs the reader about the pitfalls of tests for assessing its deficiency, reviews B12 status in various populations at different disease stages, and provides recommendations for interpretation, treatment, and associated risks. Future directions for diagnostics of B12 status and health interventions are also discussed.
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Affiliation(s)
- Agata Sobczyńska-Malefora
- The Nutristasis Unit, Viapath, St. Thomas' Hospital, London, UK.,Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Edgard Delvin
- Sainte-Justine UHC Research Centre, Montreal, Canada.,Department of Biochemistry and Molecular Medicine, University of Montreal, Montreal, Canada
| | | | - Kourosh R Ahmadi
- Department of Nutrition & Metabolism, School of Biosciences and Medicine, University of Surrey, Guildford, UK
| | - Dominic J Harrington
- The Nutristasis Unit, Viapath, St. Thomas' Hospital, London, UK.,Faculty of Life Sciences and Medicine, King's College London, London, UK
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25
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Surendran S, Vimaleswaran KS. A nutrigenetic approach to examine the relationship between vitamin B12 status and cardio‐metabolic traits in multiple ethnic groups – findings from the GeNuIne Collaboration. NUTR BULL 2021. [DOI: 10.1111/nbu.12494] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- S. Surendran
- Hugh Sinclair Unit of Human Nutrition Department of Food and Nutritional Sciences University of Reading Reading UK
- Faculty of Health and Medical Sciences School of Biosciences and MedicineUniversity of Surrey Guildford UK
| | - K. S. Vimaleswaran
- Hugh Sinclair Unit of Human Nutrition Department of Food and Nutritional Sciences University of Reading Reading UK
- Institute for Food, Nutrition and Health (IFNH) University of Reading Reading UK
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26
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Martino F, Magenta A, Troccoli ML, Martino E, Torromeo C, Putotto C, Barillà F. Long-term outcome of a patient with Transcobalamin deficiency caused by the homozygous c.1115_1116delCA mutation in TCN2 gene: a case report. Ital J Pediatr 2021; 47:54. [PMID: 33685478 PMCID: PMC7941906 DOI: 10.1186/s13052-021-01007-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 02/22/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Transcobalamin deficiency is a rare autosomal recessive inborn error of cobalamin transport (prevalence: < 1/1000000) which clinically manifests in early infancy. CASE PRESENTATION We describe the case of a 31 years old woman who at the age of 30 days presented with the classical clinical and laboratory signs of an inborn error of vitamin B12 metabolism. Family history revealed a sister who died at the age of 3 months with a similar clinical syndrome and with pancytopenia. She was started on empirical intramuscular (IM) cobalamin supplements (injections of hydroxocobalamin 1 mg/day for 1 week and then 1 mg twice a week) and several transfusions of washed and concentrated red blood cells. With these treatments a clear improvement in symptoms was observed, with the disappearance of vomiting, diarrhea and normalization of the full blood count. At 8 years of age injections were stopped for about two and a half months causing the appearance of pancytopenia. IM hydroxocobalamin was then restarted sine die. The definitive diagnosis could only be established at 29 years of age when a genetic evaluation revealed the homozygous c.1115_1116delCA mutation of TCN2 gene (p.Q373GfsX38). Currently she is healthy and she is taking 1 mg of IM hydroxocobalamin once a week. CONCLUSIONS Our case report highlights that early detection of TC deficiency and early initiation of aggressive IM treatment is likely associated with disease control and an overall favorable outcome.
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Affiliation(s)
- Francesco Martino
- Department of Pediatrics Gynecology and Obstetrics, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy.
| | - Alessandra Magenta
- National Research Council of Italy (CNR), Institute of Translational Pharmacology IFT, Via Fosso del Cavaliere 100, 00133, Rome, Italy
| | - Maria Letizia Troccoli
- Clinical Analysis and Biochemistry Laboratory, Sant'Andrea Hospital, Via di Grottarossa, 1035/1039, 00189, Rome, Italy
| | - Eliana Martino
- Department of Pediatrics Gynecology and Obstetrics, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Concetta Torromeo
- Department of Cardiovascular, Respiratory, Nephrology, Anesthesiology and Geriatric Sciences, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy
| | - Carolina Putotto
- Department of Pediatrics Gynecology and Obstetrics, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Francesco Barillà
- Department of Cardiovascular, Respiratory, Nephrology, Anesthesiology and Geriatric Sciences, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy
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Elshinawy M, Gao HH, Al-Nabhani DM, Al-Thihli KA. Clinical and molecular characteristics of imerslund-gräsbeck syndrome: First report of a novel Frameshift variant in Exon 11 of AMN gene. Int J Lab Hematol 2021; 43:1009-1015. [PMID: 33491342 DOI: 10.1111/ijlh.13473] [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: 06/11/2020] [Revised: 12/06/2020] [Accepted: 12/30/2020] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Imerslund-Gräsbeck syndrome (IGS) is a rare autosomal-recessive disorder characterized by selective vitamin B12 malabsorption, megaloblastic anemia, and proteinuria. The precise incidence of this disorder is unknown in the Middle East and Arab countries. The disease is caused by a homozygous variant in either AMN or CUBN genes. In addition, some compound heterozygous variants are reported. METHODS Clinical and laboratory data of patients diagnosed with IGS in Oman were retrospectively collected. Mutation analysis for all genes involved in vitamin B12/folic acid metabolism and megaloblastic anemia was conducted using next-generation sequencing (NGS). RESULTS Three siblings (2 girls and a boy) have been diagnosed with the condition. They exhibit a phenotypic variability with different age of presentation and different spectrum of disease. All patients harbor a novel biallelic frameshift mutation in exon 11 of AMN gene (p.Pro409Glyfs*), which was not reported previously in the literature. Both parents are heterozygotes for the same variant. All patients responded well to vitamin B12 parenteral therapy, but proteinuria persisted. CONCLUSION In communities with high incidence of consanguinity, cases of early-onset vitamin B12 deficiency should be thoroughly investigated to explore the possibility of Imerslund-Gräsbeck syndrome and other vitamin B12-related hereditary disorders. Further local and regional studies are highly recommended.
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Affiliation(s)
- Mohamed Elshinawy
- Department of Child Health, Pediatric Hematology/Oncology, Sultan Qaboos University Hospital, Muscat, Oman.,Department of Pediatrics, Pediatric Hematology/Oncology, Faculty of Medicine, University of Alexandria, Alexandria, Egypt
| | | | - Dana M Al-Nabhani
- Department of Nephrology, Sultan Qaboos University Hospital, Muscat, Oman
| | - Khalid A Al-Thihli
- Genetic and developmental Medicine Department, Sultan Qaboos University Hospital, Muscat, Oman
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Niforou A, Konstantinidou V, Naska A. Genetic Variants Shaping Inter-individual Differences in Response to Dietary Intakes-A Narrative Review of the Case of Vitamins. Front Nutr 2020; 7:558598. [PMID: 33335908 PMCID: PMC7736113 DOI: 10.3389/fnut.2020.558598] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 11/03/2020] [Indexed: 12/17/2022] Open
Abstract
Recent advances in the field of nutrigenetics have provided evidence on how genetic variations can impact the individuals' response to dietary intakes. An objective and reliable assessment of dietary exposures should rely on combinations of methodologies including frequency questionnaires, short-term recalls or records, together with biological samples to evaluate markers of intake or status and to identify genetic susceptibilities. In an attempt to present current knowledge on how genetic fingerprints contribute to an individual's nutritional status, we present a review of current literature describing associations between genetic variants and levels of well-established biomarkers of vitamin status in free-living and generally healthy individuals. Based on the outcomes of candidate gene, genome-wide-association studies and meta-analyses thereof, we have identified several single nucleotide polymorphisms (SNPs) involved in the vitamins' metabolic pathways. Polymorphisms in genes encoding proteins involved in vitamin metabolism and transport are reported to have an impact on vitamin D status; while genetic variants of vitamin D receptor were most frequently associated with health outcomes. Genetic variations that can influence vitamin E status include SNPs involved in its uptake and transport, such as in SCAR-B1 gene, and in lipoprotein metabolism. Variants of the genes encoding the sodium-dependent vitamin C transport proteins are greatly associated with the body's status on vitamin C. Regarding the vitamins of the B-complex, special reference is made to the widely studied variant in the MTHFR gene. Methodological attributes of genetic studies that may limit the comparability and interpretability of the findings are also discussed. Our understanding of how genes affect our responses to nutritional triggers will enhance our capacity to evaluate dietary exposure and design personalized nutrition programs to sustain health and prevent disease.
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Affiliation(s)
- Aikaterini Niforou
- Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Androniki Naska
- Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
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Personalized Nutrition for Management of Micronutrient Deficiency-Literature Review in Non-bariatric Populations and Possible Utility in Bariatric Cohort. Obes Surg 2020; 30:3570-3582. [PMID: 32564308 PMCID: PMC7378102 DOI: 10.1007/s11695-020-04762-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 06/01/2020] [Accepted: 06/04/2020] [Indexed: 02/07/2023]
Abstract
Background Bariatric surgery can effectively treat morbid obesity; however, micronutrient deficiencies are common despite recommendations for high-dose supplements. Genetic predisposition to deficiencies underscores necessary identification of high-risk candidates. Personalized nutrition (PN) can be a tool to manage these deficiencies. Methods Medline, PubMed, and Google Scholar were searched. Articles involving genetic testing, micronutrient metabolism, and bariatric surgery were included. Results Studies show associations between genetic variants and micronutrient metabolism. Research demonstrates genetic testing to be a predictor for outcomes among obesity and bariatric surgery populations. There is limited research in bariatric surgery and micronutrient genetic variants. Conclusion Genotype-based PN is becoming feasible to provide an effective treatment of micronutrient deficiencies associated with bariatric surgery. The role of genomic technology in micronutrient recommendations needs further investigation.
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Shi C, Wang P, Airen S, Brown C, Liu Z, Townsend JH, Wang J, Jiang H. Nutritional and medical food therapies for diabetic retinopathy. EYE AND VISION (LONDON, ENGLAND) 2020; 7:33. [PMID: 32582807 PMCID: PMC7310218 DOI: 10.1186/s40662-020-00199-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 05/28/2020] [Indexed: 02/07/2023]
Abstract
Diabetic retinopathy (DR) is a form of microangiopathy. Reducing oxidative stress in the mitochondria and cell membranes decreases ischemic injury and end-organ damage to the retina. New approaches are needed, which reduce the risk and improve the outcomes of DR while complementing current therapeutic approaches. Homocysteine (Hcy) elevation and oxidative stress are potential therapeutic targets in DR. Common genetic polymorphisms such as those of methylenetetrahydrofolate reductase (MTHFR), increase Hcy and DR risk and severity. Patients with DR have high incidences of deficiencies of crucial vitamins, minerals, and related compounds, which also lead to elevation of Hcy and oxidative stress. Addressing the effects of the MTHFR polymorphism and addressing comorbid deficiencies and insufficiencies reduce the impact and severity of the disease. This approach provides safe and simple strategies that support conventional care and improve outcomes. Suboptimal vitamin co-factor availability also impairs the release of neurotrophic and neuroprotective growth factors. Collectively, this accounts for variability in presentation and response of DR to conventional therapy. Fortunately, there are straightforward recommendations for addressing these issues and supporting traditional treatment plans. We have reviewed the literature for nutritional interventions that support conventional therapies to reduce disease risk and severity. Optimal combinations of vitamins B1, B2, B6, L-methylfolate, methylcobalamin (B12), C, D, natural vitamin E complex, lutein, zeaxanthin, alpha-lipoic acid, and n-acetylcysteine are identified for protecting the retina and choroid. Certain medical foods have been successfully used as therapy for retinopathy. Recommendations based on this review and our clinical experience are developed for clinicians to use to support conventional therapy for DR. DR from both type 1 diabetes mellitus (T1DM) and type 2 diabetes mellitus (T2DM) have similar retinal findings and responses to nutritional therapies.
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Affiliation(s)
- Ce Shi
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, 1638 NW 10th Avenue, McKnight Building - Room 202A, Miami, FL 33136 USA
- School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Peng Wang
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, 1638 NW 10th Avenue, McKnight Building - Room 202A, Miami, FL 33136 USA
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Shriya Airen
- College of Arts and Sciences, University of Miami, Miami, FL USA
| | - Craig Brown
- Department of Ophthalmology, College of Medicine, the University of Arkansas for Medical Sciences, Fayetteville, AR USA
| | - Zhiping Liu
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, 1638 NW 10th Avenue, McKnight Building - Room 202A, Miami, FL 33136 USA
- Ophthalmic Center, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong China
| | - Justin H. Townsend
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, 1638 NW 10th Avenue, McKnight Building - Room 202A, Miami, FL 33136 USA
| | - Jianhua Wang
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, 1638 NW 10th Avenue, McKnight Building - Room 202A, Miami, FL 33136 USA
| | - Hong Jiang
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, 1638 NW 10th Avenue, McKnight Building - Room 202A, Miami, FL 33136 USA
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL USA
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Vesnina A, Prosekov A, Kozlova O, Atuchin V. Genes and Eating Preferences, Their Roles in Personalized Nutrition. Genes (Basel) 2020; 11:genes11040357. [PMID: 32230794 PMCID: PMC7230842 DOI: 10.3390/genes11040357] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 03/20/2020] [Accepted: 03/26/2020] [Indexed: 12/20/2022] Open
Abstract
At present, personalized diets, which take into account consumer genetic characteristics, are growing popular. Nutrigenetics studies the effect of gene variations on metabolism and nutrigenomics, which branches off further and investigates how nutrients and food compounds affect genes. This work deals with the mutations affecting the assimilation of metabolites, contributing to nutrigenetic studies. We searched for the genes responsible for eating preferences which allow for the tailoring of personalized diets. Presently, genetic nutrition is growing in demand, as it contributes to the prevention and/or rehabilitation of non-communicable diseases, both monogenic and polygenic. In this work, we showed single-nucleotide polymorphisms in genes-missense mutations that change the functions of coded proteins, resulting in a particular eating preferences or a disease. We studied the genes influencing food preferences-particularly those responsible for fats and carbohydrates absorption, food intolerance, metabolism of vitamins, taste sensations, oxidation of xenobiotics, eating preferences and food addiction. As a result, 34 genes were identified that affect eating preferences. Significant shortcomings were found in the methods/programs for developing personalized diets that are used today, and the weaknesses were revealed in the development of nutrigenetics (inconsistency of data on SNP genes, ignoring population genetics data, difficult information to understand consumer, etc.). Taking into account all the shortcomings, an approximate model was proposed in the review for selecting an appropriate personalized diet. In the future, it is planned to develop the proposed model for the compilation of individual diets.
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Affiliation(s)
- Anna Vesnina
- Department of Bionanotechnology, Kemerovo State University, 650043 Kemerovo, Russia; (A.V.); (O.K.)
| | - Alexander Prosekov
- Laboratory of Biocatalysis, Kemerovo State University, 650043 Kemerovo, Russia;
| | - Oksana Kozlova
- Department of Bionanotechnology, Kemerovo State University, 650043 Kemerovo, Russia; (A.V.); (O.K.)
| | - Victor Atuchin
- Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, 630090 Novosibirsk, Russia
- Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, 630090 Novosibirsk, Russia
- Research and Development Department, Kemerovo State University, 650000 Kemerovo, Russia
- Correspondence: ; Tel.: +7-(383)-3308889
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Serum Vitamin B12, and Related MTRR and Cubilin Genotypes, Predict Neural Outcomes across the AD Spectrum. Br J Nutr 2020; 124:135-145. [PMID: 32180545 DOI: 10.1017/s0007114520000951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Epidemiological studies show mixed findings for serum vitamin B12 and both cognitive and regional volume outcomes. No studies to date have comprehensively examined, in non-supplemented individuals, serum B12 level associations with neurodegeneration, hypometabolism, and cognition across the Alzheimer's disease (AD) spectrum. Serum vitamin B12 was assayed from the Alzheimer's Disease Neuroimaging Initiative (ADNI) and the Australian Imaging, Biomarker & Lifestyle Flagship Study of Ageing (AIBL). Voxel-wise analyses regressed B12 levels against regional gray matter (GM) volume and glucose metabolism (p<.05, family-wise corrected). For ADNI GM, there were 39 cognitively normal (CN), 73 mild cognitive impairment (MCI), and 31 AD participants. For AIBL GM, there were 311 CN, 59 MCI, and 31 AD participants. Covariates were age, sex, baseline diagnosis, APOE4 status, and Body Mass Index (BMI). In ADNI, higher B12 was negatively associated with GM in the right precuneus and bilateral frontal gyri. When diagnostic groups were examined separately, only participants with MCI or above an established cutoff for CSF total tau showed such associations. In AIBL, higher B12 was associated with more grey matter in the right amygdala and right superior temporal pole, which largely seemed to be driven by CN participants that constituted most of the sample. Our results suggest that B12 may show different patterns of association based on clinical status and, for ADNI, AD CSF biomarkers. Accounting for these factors may clarify the relationship between B12 with neural outcomes in late-life.
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Abstract
The paper presents the results of the literature review and the authors’ own studies of the association of several several single-nucleotide genetic polymorphisms (SNP), which affect one-carbon metabolism, with a risk of schizophrenia and the severity of some clusters of its symptoms. Directions for further study of the role of a number of SNP of enzymes in the folate metabolism cycle and related biochemical processes in schizophrenia (in particular, their influence on the effect of personalized correction of one-carbon metabolism disorders) are determined.
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Yousaf Z, Razok A, Elzouki AN, Sabobeh T. Hypotension: an unusual presentation of vitamin B 12 deficiency, with complete recovery following cyanocobalamin therapy. BMJ Case Rep 2019; 12:12/12/e232677. [DOI: 10.1136/bcr-2019-232677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Vitamin B12 deficiency and its sequelae are well described and reported, especially in vegetarians. However, its association with haemodynamic instability is not well identified. We report a case of a young man, previously healthy, presenting with fever, hypotension requiring vasopressors and pancytopenia. Extensive workup was unrevealing for possible infective, inflammatory or endocrine causes except for vitamin B12 deficiency. Fever and haematological parameters stabilised after adequate supplementation of cyanocobalamin (vitamin B12).
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Surendran S, Aji AS, Ariyasra U, Sari SR, Malik SG, Tasrif N, Yani FF, Lovegrove JA, Sudji IR, Lipoeto NI, Vimaleswaran KS. A nutrigenetic approach for investigating the relationship between vitamin B12 status and metabolic traits in Indonesian women. J Diabetes Metab Disord 2019; 18:389-399. [PMID: 31890664 PMCID: PMC6914754 DOI: 10.1007/s40200-019-00424-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 07/09/2019] [Indexed: 12/24/2022]
Abstract
PURPOSE Adverse effects of maternal vitamin B12 deficiency have been linked to major clinical outcomes, including increased body mass index and gestational diabetes, however, less is known about vitamin B12 nutrition in non-pregnant women. Hence, the aim of the present study was to explore the relationships between metabolic traits and vitamin B12 status in a cohort of healthy Indonesian women and to investigate whether these relationships were modified by dietary intake using a genetic approach. METHODS A total of 117 Minangkabau women (aged 25-60 years), from the city of Padang, West Sumatra underwent anthropometric, biochemical, dietary intake analysis and genetic tests. Genetic risk scores (GRS) based on nine vitamin B12 associated single nucleotide polymorphisms (SNPs) (B12-GRS) and nine metabolic SNPs (metabolic-GRS) were constructed. RESULTS The B12-GRS and metabolic-GRS had no effect on vitamin B12 (P > 0.160) and metabolic traits (P > 0.085). However, an interaction was observed between the B12-GRS and dietary fibre intake (g) on glycated haemoglobin (HbA1C) levels (P interaction = 0.042), where among those who consumed a low fibre diet (4.90 ± 1.00 g/day), individuals carrying ≥9 risk alleles for vitamin B12 deficiency had significantly higher HbA1C levels (P = 0.025) compared to those carrying ≤8 risk alleles. CONCLUSION Our study showed a significant impact of the B12-GRS on HbA1C concentrations through the influence of a dietary factor, however, our study failed to provide evidence for an impact of metabolic-GRS on lowering B12 concentrations. Further replication studies utilizing larger sample sizes are needed to confirm our findings.
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Affiliation(s)
- S. Surendran
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading, UK
| | - A. S. Aji
- Department of Biomedical Science, Faculty of Medicine, Andalas University, Padang, West Sumatra Indonesia
| | - U. Ariyasra
- Department of Biomedical Science, Faculty of Medicine, Andalas University, Padang, West Sumatra Indonesia
| | - S. R. Sari
- Department of Biomedical Science, Faculty of Medicine, Andalas University, Padang, West Sumatra Indonesia
| | - S. G. Malik
- Eijkman Institute for Molecular Biology, Jakarta, Indonesia
| | - N. Tasrif
- Public Health Department, Faculty of Medicine, Andalas University, Padang, Indonesia
| | - F. F. Yani
- Department of Child Health, Faculty of Medicine, Andalas University, Padang, Indonesia
| | - J. A. Lovegrove
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading, UK
- Institute for Cardiovascular and Metabolic Research (ICMR), University of Reading, Reading, UK
| | - I. R. Sudji
- Biomedical Laboratory, Faculty of Medicine, Andalas University, Padang, Indonesia
| | - N. I. Lipoeto
- Department of Nutrition, Faculty of Medicine, Andalas University, Padang, Indonesia
| | - Karani Santhanakrishnan Vimaleswaran
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading, UK
- Institute for Cardiovascular and Metabolic Research (ICMR), University of Reading, Reading, UK
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Surendran S, Jayashri R, Drysdale L, Bodhini D, Lakshmipriya N, Shanthi Rani CS, Sudha V, Lovegrove JA, Anjana RM, Mohan V, Radha V, Pradeepa R, Vimaleswaran KS. Evidence for the association between FTO gene variants and vitamin B12 concentrations in an Asian Indian population. GENES & NUTRITION 2019; 14:26. [PMID: 31516636 PMCID: PMC6728975 DOI: 10.1186/s12263-019-0649-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 07/30/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Low vitamin B12 concentrations have been associated with major clinical outcomes, including adiposity, in Indian populations. The Fat mass and obesity-associated gene (FTO) is an established obesity-susceptibility locus; however, it remains unknown whether it influences vitamin B12 status. Hence, we investigated the association of two previously studied FTO polymorphisms with vitamin B12 concentrations and metabolic disease-related outcomes and examined whether these associations were modified by dietary factors and physical activity. METHODS A total of 176 individuals with type 2 diabetes, 152 with pre-diabetes, and 220 normal glucose-tolerant individuals were randomly selected from the Chennai Urban Rural Epidemiology Study. Anthropometric, clinical, and biochemical investigations, which included body mass index (BMI), waist circumference, vitamin B12, homocysteine, and folic acid were measured. A validated food frequency questionnaire was used for dietary assessment and self-reported physical activity measures were collected. An unweighted genetic risk score (GRS) was calculated for two FTO single-nucleotide polymorphisms (rs8050136 and rs2388405) by summation of the number of risk alleles for obesity. Interaction analyses were performed by including the interaction terms in the regression model. RESULTS The GRS was significantly associated with increased BMI (P = 0.009) and risk of obesity (P = 0.023). Individuals carrying more than one risk allele for the GRS had 13.13% lower vitamin B12 concentrations, compared to individuals carrying zero risk alleles (P = 0.018). No associations between the GRS and folic acid and homocysteine concentrations were observed. Furthermore, no statistically significant GRS-diet or GRS-physical activity interactions with vitamin B12, folic acid, homocysteine or metabolic-disease outcomes were observed. CONCLUSION The study shows for the first time that a genetic risk score using two FTO SNPs is associated with lower vitamin B12 concentrations; however, we did not identify any evidence for the influence of lifestyle factors on this association. Further replication studies in larger cohorts are warranted to investigate the association between the GRS and vitamin B12 concentrations.
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Affiliation(s)
- Shelini Surendran
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research (ICMR), Department of Food and Nutritional Sciences, University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP UK
| | - Ramamoorthy Jayashri
- Department of Diabetology, Madras Diabetes Research Foundation and Dr. Mohan’s Diabetes Specialities Centre, WHO Collaborating Centre for Non-communicable Diseases Prevention and Control, ICMR Centre for Advanced Research on Diabetes, Gopalapuram, Chennai, 600086 India
| | - Lauren Drysdale
- School of Psychology and Clinical Language Sciences, University of Reading, Reading, UK
| | - Dhanasekaran Bodhini
- Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, India
| | - Nagarajan Lakshmipriya
- Department of Foods, Nutrition and Dietetics Research, Madras Diabetes Research Foundation, Chennai, India
| | | | - Vasudevan Sudha
- Department of Foods, Nutrition and Dietetics Research, Madras Diabetes Research Foundation, Chennai, India
| | - Julie A. Lovegrove
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research (ICMR), Department of Food and Nutritional Sciences, University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP UK
| | - Ranjit M. Anjana
- Department of Diabetology, Madras Diabetes Research Foundation and Dr. Mohan’s Diabetes Specialities Centre, WHO Collaborating Centre for Non-communicable Diseases Prevention and Control, ICMR Centre for Advanced Research on Diabetes, Gopalapuram, Chennai, 600086 India
| | - Viswanathan Mohan
- Department of Diabetology, Madras Diabetes Research Foundation and Dr. Mohan’s Diabetes Specialities Centre, WHO Collaborating Centre for Non-communicable Diseases Prevention and Control, ICMR Centre for Advanced Research on Diabetes, Gopalapuram, Chennai, 600086 India
| | - Venkatesan Radha
- Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, India
| | - Rajendra Pradeepa
- Department of Diabetology, Madras Diabetes Research Foundation and Dr. Mohan’s Diabetes Specialities Centre, WHO Collaborating Centre for Non-communicable Diseases Prevention and Control, ICMR Centre for Advanced Research on Diabetes, Gopalapuram, Chennai, 600086 India
| | - Karani S. Vimaleswaran
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research (ICMR), Department of Food and Nutritional Sciences, University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP UK
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Zhilyaeva TV, Sergeeva AV, Blagonravova AS, Mazo GE, Kibitov AO. One-Carbon Metabolism Disorders in Schizophrenia: Genetic and Therapeutic Aspects. NEUROCHEM J+ 2019. [DOI: 10.1134/s1819712419020156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Wolffenbuttel BH, Wouters HJ, Heiner-Fokkema MR, van der Klauw MM. The Many Faces of Cobalamin (Vitamin B 12) Deficiency. Mayo Clin Proc Innov Qual Outcomes 2019; 3:200-214. [PMID: 31193945 PMCID: PMC6543499 DOI: 10.1016/j.mayocpiqo.2019.03.002] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Although cobalamin (vitamin B12) deficiency was described over a century ago, it is still difficult to establish the correct diagnosis and prescribe the right treatment. Symptoms related to vitamin B12 deficiency may be diverse and vary from neurologic to psychiatric. A number of individuals with vitamin B12 deficiency may present with the classic megaloblastic anemia. In clinical practice, many cases of vitamin B12 deficiency are overlooked or sometimes even misdiagnosed. In this review, we describe the heterogeneous disease spectrum of patients with vitamin B12 deficiency in whom the diagnosis was either based on low serum B12 levels, elevated biomarkers like methylmalonic acid and/or homocysteine, or the improvement of clinical symptoms after the institution of parenteral vitamin B12 therapy. We discuss the possible clinical signs and symptoms of patients with B12 deficiency and the various pitfalls of diagnosis and treatment.
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Affiliation(s)
- Bruce H.R. Wolffenbuttel
- Department of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, NL-9700 RB, The Netherlands
- Correspondence: Address to Bruce H. R. Wolffenbuttel, MD, PhD, Department of Endocrinology, University of Groningen, University Medical Center Groningen, HPC AA31 9700 RB Groningen, The Netherlands
| | - Hanneke J.C.M. Wouters
- Department of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, NL-9700 RB, The Netherlands
- Department of Haematology, University of Groningen, University Medical Center Groningen, Groningen, NL-9700 RB, The Netherlands
| | - M. Rebecca Heiner-Fokkema
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, NL-9700 RB, The Netherlands
| | - Melanie M. van der Klauw
- Department of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, NL-9700 RB, The Netherlands
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A genetic approach to examine the relationship between vitamin B12 status and metabolic traits in a South Asian population. Int J Diabetes Dev Ctries 2019. [DOI: 10.1007/s13410-019-00749-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Dong X, Ba F, Wang R, Zheng D. Imaging appearance of myelopathy secondary to nitrous oxide abuse: a case report and review of the literature. Int J Neurosci 2018; 129:225-229. [PMID: 30234413 DOI: 10.1080/00207454.2018.1526801] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Purpose The abuse of nitrous oxide (N2O) can induce Vitamin B12 deficiency that subsequently leads to central nervous demyelination, myelopathy and peripheral neuropathy. Although myelopathy has been reported in the past, the specific locations and prognosis of the disease are still unclear. MATERIALS AND METHODS We report the case of a 22-year-old male who presented with quadriplegia that began after a 3-month history of inhalation of N2O. We summarized the clinical data of this entity and performed a comprehensive literature review of various presentations and MRI features of myelopathy secondary to N2O abuse. RESULTS In combination with previous reports of 14 cases, we found that the onset of the disease was usually subacute, and the majority of patients (92.85%) were young men. There was no definite relationship between myelopathy and the amount or duration of N2O inhalation. The most common clinical manifestation was sensory ataxia, and the cervical spinal cord was the most frequently impaired area of the whole spinal cord. The spinal cord lesions had a high signal intensity on T2-weighted MRI and usually involved more than three spinal segments and impaired the posterior column more significantly. Most patients recovered well after vitamin B12 supplementation. CONCLUSIONS Myelopathy secondary to N2O abuse is generally seen in young men. The clinical diagnosis mainly depends on a history of N2O inhalation and the characteristic imaging changes in the posterior cervical spinal cord. Early diagnosis and intervention are important for a satisfactory prognosis.
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Affiliation(s)
- Xiaoyu Dong
- a Department of Neurology , Shengjing Hospital of China Medical University , Shenyang , PR China
| | - Fang Ba
- b Department of Rehabilitation , Shengjing Hospital of China Medical University , Shenyang , PR China
| | - Ruihua Wang
- a Department of Neurology , Shengjing Hospital of China Medical University , Shenyang , PR China
| | - Dongming Zheng
- a Department of Neurology , Shengjing Hospital of China Medical University , Shenyang , PR China
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Kozyraki R, Cases O. Cubilin, the Intrinsic Factor-Vitamin B12 Receptor in Development and Disease. Curr Med Chem 2018; 27:3123-3150. [PMID: 30295181 DOI: 10.2174/0929867325666181008143945] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Revised: 08/11/2018] [Accepted: 08/21/2018] [Indexed: 12/29/2022]
Abstract
Gp280/Intrinsic factor-vitamin B12 receptor/Cubilin (CUBN) is a large endocytic receptor serving multiple functions in vitamin B12 homeostasis, renal reabsorption of protein or toxic substances including albumin, vitamin D-binding protein or cadmium. Cubilin is a peripheral membrane protein consisting of 8 Epidermal Growth Factor (EGF)-like repeats and 27 CUB (defined as Complement C1r/C1s, Uegf, BMP1) domains. This structurally unique protein interacts with at least two molecular partners, Amnionless (AMN) and Lrp2/Megalin. AMN is involved in appropriate plasma membrane transport of Cubilin whereas Lrp2 is essential for efficient internalization of Cubilin and its ligands. Observations gleaned from animal models with Cubn deficiency or human diseases demonstrate the importance of this protein. In this review addressed to basic research and medical scientists, we summarize currently available data on Cubilin and its implication in renal and intestinal biology. We also discuss the role of Cubilin as a modulator of Fgf8 signaling during embryonic development and propose that the Cubilin-Fgf8 interaction may be relevant in human pathology, including in cancer progression, heart or neural tube defects. We finally provide experimental elements suggesting that some aspects of Cubilin physiology might be relevant in drug design.
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Affiliation(s)
- Renata Kozyraki
- INSERM UMRS 1138, Centre de Recherche des Cordeliers, Paris-Diderot University, Paris, France
| | - Olivier Cases
- INSERM UMRS 1138, Centre de Recherche des Cordeliers, Paris-Diderot University, Paris, France
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