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Rahimi MR, Symonds ME. Effect of FTO genotype on exercise training and diet-indued weight loss in overweight and obese adults: a systematic review and meta-analysis. Crit Rev Food Sci Nutr 2024:1-17. [PMID: 39054902 DOI: 10.1080/10408398.2024.2382346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
Our meta-analysis, encompassing 30 studies with 46,976 subjects, aimed to explore the impact of fat mass and obesity-associated protein (FTO) genotypes on weight response to exercise and dietary interventions in overweight and obese adults. Electronic databases including PubMed and Google Scholar were searched from 2020 to September 2023 to identify relevant studies. Results revealed a significant reduction in body weight among individuals with the FTO risk allele following exercise and diet interventions (standardized mean difference [SMD] = - 0.619, 95% CI: - 1.137, - 0.100; p = .01). When examining FTO variants, both AA (SMD = - 0.148, 95% CI: - 0.282, - 0.014, p = .03, I2 = 24.96) and TA genotypes (SMD = - 0.674, 95% CI: - 1.162, - 0.186, p = .007, I2 = 91.12) showed significant weight reduction compared to the TT genotype. Moreover, individuals with the high-risk genotype AA + TT achieved greater weight loss compared to those with the normal-risk genotype TT (SMD = - 0.419, 95% CI: - 0.655, -0.183, p = .0001, I2 = 92.08) in the dominant genetic model. Subgroup analysis indicated that FTO risk allele carriers (AA + AT) with exercise interventions lasting six months and a body mass index of 25 - 29 experienced greater weight loss compared to TT carriers. These findings emphasize the importance of genetic considerations in weight management interventions and suggest personalized approaches for combating obesity. Further clinical trials are warranted to validate our study's findings.
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Affiliation(s)
| | - Michael E Symonds
- Academic Unit of Population and Lifespan Sciences, Centre for Perinatal Research, School of Medicine, University of Nottingham, Nottingham, UK
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2
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Naous E, Achkar A, Mitri J. Intermittent Fasting and Its Effects on Weight, Glycemia, Lipids, and Blood Pressure: A Narrative Review. Nutrients 2023; 15:3661. [PMID: 37630851 PMCID: PMC10459308 DOI: 10.3390/nu15163661] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/11/2023] [Accepted: 08/19/2023] [Indexed: 08/27/2023] Open
Abstract
Metabolic syndrome (MetS) has become a significant public health concern globally. Weight managementis crucial in controlling MetS risk factors, making energy balance and weight loss strategies important in nutrition recommendations. Intermittent fasting (IF) has gained traction as a dietary approach for weight management and cardiovascular risk reduction. However, the effects of IF on cardiovascular risk factors have been inconsistent in previous studies. This review aims to summarize the effects of various types of IF on body mass index (BMI), glycemia, lipid profile, and blood pressure, while providing insights into their clinical implications. A comprehensive search of interventional studies and meta-analyses was conducted, and the results were analyzed. The findings indicate that different types of IF lead to mixed effects. Time-restricted eating (TRE) and alternate-day fasting (ADF) consistently showed decreases in BMI, while the outcomes of intermittent energy restriction (IER) were more uncertain. The effects of IF on glycemia and lipid profile were also variable, with TRE and ADF generally showing positive results. However, the impact of IER remained inconsistent. More research is needed to understand the long-term effects and optimal implementation of IF for managing metabolic syndrome and cardiovascular risk factors.
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Affiliation(s)
- Elie Naous
- Division of Internal Medicine, St. Elizabeth’s Medical Center, Tufts University School of Medicine and Boston University School of Medicine, Brighton, MA 02135, USA;
| | - Angela Achkar
- Division of Internal Medicine, St. Elizabeth’s Medical Center, Tufts University School of Medicine and Boston University School of Medicine, Brighton, MA 02135, USA;
| | - Joanna Mitri
- Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA;
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3
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Bila WC, Romano MCC, Dos Santos LL, da Silva VR, Capanema FD, Pfrimer K, Ferriolli E, Alves NMC, Campos CG, Carlos FM, Dos Santos MESM, Lamounier JA. Body fat, cardiovascular risk factors and polymorphism in the FTO gene: randomized clinical trial and different physical exercise for adolescents. J Pediatr (Rio J) 2023; 99:139-146. [PMID: 36030815 PMCID: PMC10031311 DOI: 10.1016/j.jped.2022.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 07/09/2022] [Accepted: 07/11/2022] [Indexed: 10/15/2022] Open
Abstract
OBJECTIVE To investigate the effects of different physical exercise programs and polymorphisms of the FTO (fat mass and obesity-associated gene) on body composition and cardiovascular risk factors in adolescents with overweight and obesity. METHODS A randomized, parallel, double-blind clinical trial consisting of the adolescent overweight from the state public network, in a simple representative random sample, who participated in an aerobic exercise or weight training intervention for 10 weeks. Anthropometry, body composition, biochemical markers, sexual maturation, and rs9939609 polymorphism in the FTO gene were assessed. 347 adolescents had their characterization of nutritional status. 72 individuals with overweight and obesity were invited to participate. 39 remained for the start of the program and were randomly allocated to both types of intervention. In the end, 26 subjects participated in the intervention programs, with 12 and 14 in the aerobic and weight training programs, respectively. RESULTS Heterozygous and homozygous bearers of risk allele A participating in the aerobic program showed improvements in glycemia (p = 0.002) and total cholesterol (p = 0.023) and a reduction in body fat mass (p = 0.041). The weight training program reduced glycemia in patients with the risk allele A (p = 0.027). Cameron's stage four sexual maturation participants were 2.1 times more likely to improve their body fat (CI = 1.31-3.39). CONCLUSION Aerobic exercises produced exclusively a significant decrease in fat mass and total cholesterol in patients with risk allele A. Distinct physical exercise programs may cause diverse changes in risk variables related to the health of adolescents.
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Affiliation(s)
- Wendell C Bila
- Universidade Federal de São João del Rei, Programa de Pós-Graduação em Ciências da Saúde, Divinópolis, MG, Brazil.
| | - Márcia C C Romano
- Universidade Federal de São João del Rei, Programa de Pós-Graduação em Enfermagem, Divinópolis, MG, Brazil
| | - Luciana L Dos Santos
- Universidade Federal de São João del Rei, Programa de Pós-Graduação em Ciências da Saúde, Divinópolis, MG, Brazil
| | - Valmin R da Silva
- Faculdade de Ciências da Santa Casa de Misericórdia de Vitória, Programa de Mestrado em Políticas Públicas e Desenvolvimento Local, Vitória, ES, Brazil
| | - Flávio D Capanema
- Fundação Hospitalar do Estado de Minas Gerais, Centro de Inovação Tecnológica e Proteção do Conhecimento, Belo Horizonte, MG, Brazil
| | - Karina Pfrimer
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Ribeirão Preto, SP, Brazil
| | - Eduardo Ferriolli
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Ribeirão Preto, SP, Brazil
| | - Natália M C Alves
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Ribeirão Preto, SP, Brazil
| | - Cezenário G Campos
- Universidade Federal de São João del Rei, Programa de Pós-Graduação em Ciências da Saúde, Divinópolis, MG, Brazil
| | - Fabiângelo M Carlos
- Universidade Federal de São João del Rei, Programa de Pós-Graduação em Enfermagem, Divinópolis, MG, Brazil
| | - Maria E S M Dos Santos
- Universidade Federal do Triângulo Mineiro, Departamento de Bioquímica, Farmacologia e Fisiologia/ICBN, Uberaba, MG, Brazil
| | - Joel A Lamounier
- Universidade Federal de São João del Rei, Departamento de Medicina, São João del Rei, MG, Brazil
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4
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Examining the effect of obesity-associated gene variants on breast cancer survivors in a randomized weight loss intervention. Breast Cancer Res Treat 2021; 187:487-497. [PMID: 33677781 DOI: 10.1007/s10549-021-06151-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 02/16/2021] [Indexed: 01/06/2023]
Abstract
PURPOSE Our study examined whether common variants of obesity-associated genes FTO, MC4R, BDNF, and CREB1 moderated the effects of a lifestyle intervention on weight change among breast cancer survivors. METHODS 151 breast cancer survivors with a body mass index ≥ 25 kg/m2 were randomly assigned to a 6-month weight loss intervention or usual care group. Genotyping of FTO rs9939609, MC4R rs6567160, BDNF rs11030104, CREB1 rs17203016 was performed. Linear mixed models were used including the main effects of genotype (assuming a dominant genetic model), treatment arm on weight and percent body fat changes, and genotype by treatment interaction variable. All statistical tests were evaluated against a Bonferroni-corrected alpha of 0.0125. RESULTS Women in the intervention group achieved significantly greater weight loss than the usual care group (5.9% vs 0.4%, p < 0.001), regardless of genotype. Changes in weight and percent body fat did not differ significantly between carriers of the FTO rs9939609, MC4R rs6567160, BDNF rs11030104, and CREB1 rs17203016 risk alleles compared to non-carriers (p-interaction > 0.0125 for each single-nucleotide polymorphisms). CONCLUSIONS Women who are genetically predisposed to obesity and recently diagnosed with breast cancer may achieve significant and clinically meaningful weight loss through healthy eating and exercise. CLINICAL TRIAL REGISTRATION NCT02863887 (Date of Registration: August 11, 2016); NCT02110641 (Date of Registration: April 10, 2014).
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Holzapfel C, Sag S, Graf-Schindler J, Fischer M, Drabsch T, Illig T, Grallert H, Stecher L, Strack C, Caterson ID, Jebb SA, Hauner H, Baessler A. Association between Single Nucleotide Polymorphisms and Weight Reduction in Behavioural Interventions-A Pooled Analysis. Nutrients 2021; 13:nu13030819. [PMID: 33801339 PMCID: PMC7998423 DOI: 10.3390/nu13030819] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/23/2021] [Accepted: 02/25/2021] [Indexed: 11/24/2022] Open
Abstract
Knowledge of the association between single nucleotide polymorphisms (SNPs) and weight loss is limited. The aim was to analyse whether selected obesity-associated SNPs within the fat mass and obesity-associated (FTO), transmembrane protein 18 (TMEM18), melanocortin-4 receptor (MC4R), SEC16 homolog B (SEC16B), and brain-derived neurotrophic factor (BDNF) gene are associated with anthropometric changes during behavioural intervention for weight loss. genetic and anthropometric data from 576 individuals with overweight and obesity from four lifestyle interventions were obtained. A genetic predisposition score (GPS) was calculated. Our results show that study participants had a mean age of 48.2 ± 12.6 years and a mean baseline body mass index of 33.9 ± 6.4 kg/m2. Mean weight reduction after 12 months was −7.7 ± 10.9 kg. After 12 months of intervention, the MC4R SNPs rs571312 and rs17782313 were significantly associated with a greater decrease in body weight and BMI (p = 0.012, p = 0.011, respectively). The investigated SNPs within the other four genetic loci showed no statistically significant association with changes in anthropometric parameters. The GPS showed no statistically significant association with weight reduction. In conclusion there was no consistent evidence for statistically significant associations of SNPs with anthropometric changes during a behavioural intervention. It seems that other factors play a more significant in weight management than the investigated SNPs.
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Affiliation(s)
- Christina Holzapfel
- Institute for Nutritional Medicine, School of Medicine, Technical University of Munich, 80992 Munich, Germany; (J.G.-S.); (T.D.); (L.S.); (H.H.)
- Correspondence: ; Tel.: +49-89-28924923; Fax: +49-89-28924922
| | - Sabine Sag
- Clinic of Internal Medicine II, University Hospital of Regensburg, 93053 Regensburg, Germany; (S.S.); (M.F.); (C.S.); (A.B.)
| | - Johanna Graf-Schindler
- Institute for Nutritional Medicine, School of Medicine, Technical University of Munich, 80992 Munich, Germany; (J.G.-S.); (T.D.); (L.S.); (H.H.)
| | - Marcus Fischer
- Clinic of Internal Medicine II, University Hospital of Regensburg, 93053 Regensburg, Germany; (S.S.); (M.F.); (C.S.); (A.B.)
| | - Theresa Drabsch
- Institute for Nutritional Medicine, School of Medicine, Technical University of Munich, 80992 Munich, Germany; (J.G.-S.); (T.D.); (L.S.); (H.H.)
| | - Thomas Illig
- Hannover Unified Biobank, Hannover Medical School, 30625 Hannover, Germany;
| | - Harald Grallert
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany;
| | - Lynne Stecher
- Institute for Nutritional Medicine, School of Medicine, Technical University of Munich, 80992 Munich, Germany; (J.G.-S.); (T.D.); (L.S.); (H.H.)
| | - Christina Strack
- Clinic of Internal Medicine II, University Hospital of Regensburg, 93053 Regensburg, Germany; (S.S.); (M.F.); (C.S.); (A.B.)
| | - Ian D. Caterson
- Boden Collaboration, Charles Perkins Centre, University of Sydney, Sydney, NSW 2006, Australia;
| | - Susan A. Jebb
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford OX2 6GG, UK;
| | - Hans Hauner
- Institute for Nutritional Medicine, School of Medicine, Technical University of Munich, 80992 Munich, Germany; (J.G.-S.); (T.D.); (L.S.); (H.H.)
- ZIEL Institute for Food and Health, Else Kröner-Fresenius-Center of Nutritional Medicine, School of Life Sciences, Technical University of Munich, 85354 Freising-Weihenstephan, Germany
| | - Andrea Baessler
- Clinic of Internal Medicine II, University Hospital of Regensburg, 93053 Regensburg, Germany; (S.S.); (M.F.); (C.S.); (A.B.)
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Ali EMM, Diab T, Elsaid A, Abd El Daim HA, Elshazli RM, Settin A. Fat mass and obesity-associated ( FTO) and leptin receptor ( LEPR) gene polymorphisms in Egyptian obese subjects. Arch Physiol Biochem 2021; 127:28-36. [PMID: 30767572 DOI: 10.1080/13813455.2019.1573841] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Several studies addressed the contribution of fat mass and obesity-associated (FTO) and leptin receptor (LEPR) polymorphisms for the susceptibility to obesity among different ethnic subjects. The main purpose of this work is to evaluate the association of these polymorph\isms with obesity among Egyptian subjects. SUBJECTS AND METHODS This case-control study was carried out on 110 unrelated obese Egyptian subjects who were compared with 122 controls. Their genomic DNA was genotyped using the PCR technique. RESULTS The allelic frequencies of FTO rs9939609 (A) and LEPR rs1137101 (223R) were significantly higher in obese subjects compared with non-obese controls (p < .001). Comparing different phenotype frequencies including clinical, anthropometric, and biochemical parameters in obese subjects revealed no significant difference in relation to their genotype frequencies (p> .05). CONCLUSIONS This study designates a strong association for FTO and LEPR variants with the risk of obesity among Egyptian subjects.
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Affiliation(s)
- Ehab M M Ali
- Department of Chemistry, Biochemistry Section, Faculty of Science, Tanta University, Tanta, Egypt
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Thoria Diab
- Department of Chemistry, Biochemistry Section, Faculty of Science, Tanta University, Tanta, Egypt
| | - Afaf Elsaid
- Genetic Unit, Children Hospital, Mansoura University, Mansoura, Egypt
| | - Hamada A Abd El Daim
- Department of Chemistry, Biochemistry Section, Faculty of Science, Tanta University, Tanta, Egypt
| | - Rami M Elshazli
- Department of Biochemistry, College of Physical Therapy, Horus University - Egypt (HUE), New Damietta, Egypt
| | - Ahmad Settin
- Genetic Unit, Children Hospital, Mansoura University, Mansoura, Egypt
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Abstract
Obesity is associated with an increased risk of various diseases and mortality. Although nearly 50 % of adults have been reported trying to lose weight, the prevalence of obesity has increased. One factor that hinders weight loss-induced decrease in obesity prevalence is weight regain. Although behavioural, psychological and physiological factors associated with weight regain have been reviewed, the information regarding the relationship between weight regain and genetics has not been previously summarised. In this paper, we comprehensively review the association between genetic polymorphisms and weight regain in adults and children with obesity after weight loss. Based on this information, identification of genetic polymorphism in patients who undergo weight loss intervention might be used to estimate their risks of weight regain. Additionally, the genetic-based risk estimation may be used as a guide for physicians and dietitians to provide each of their patients with the most appropriate strategies for weight loss and weight maintenance.
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Salem ESB, Vonberg AD, Borra VJ, Gill RK, Nakamura T. RNAs and RNA-Binding Proteins in Immuno-Metabolic Homeostasis and Diseases. Front Cardiovasc Med 2019; 6:106. [PMID: 31482095 PMCID: PMC6710452 DOI: 10.3389/fcvm.2019.00106] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 07/17/2019] [Indexed: 12/16/2022] Open
Abstract
The increasing prevalence of worldwide obesity has emerged as a major risk factor for type 2 diabetes (T2D), hepatosteatosis, and cardiovascular disease. Accumulating evidence indicates that obesity has strong inflammatory underpinnings tightly linked to the development of metabolic diseases. However, the molecular mechanisms by which obesity induces aberrant inflammation associated with metabolic diseases are not yet clearly defined. Recently, RNAs have emerged as important regulators of stress responses and metabolism. RNAs are subject to changes in modification status, higher-order structure, and cellular localization; all of which could affect the affinity for RNA-binding proteins (RBPs) and thereby modify the RNA-RBP networks. Proper regulation and management of RNA characteristics are fundamental to cellular and organismal homeostasis, as well as paramount to health. Identification of multiple single nucleotide polymorphisms (SNPs) within loci of fat mass- and obesity-associated protein (FTO) gene, an RNA demethylase, through genome-wide association studies (GWAS) of T2D, and functional assessments of FTO in mice, support the concept that disruption in RNA modifications leads to the development of human diseases including obesity and metabolic disorder. In obesity, dynamic alterations in modification and localization of RNAs appear to modulate the RNA-RBP networks and activate proinflammatory RBPs, such as double-stranded RNA (dsRNA)-dependent protein kinase (PKR), Toll-like receptor (TLR) 3 and TLR7, and RNA silencing machinery. These changes induce aberrant inflammation and the development of metabolic diseases. This review will describe the current understanding of the underlying causes of these common and altered characteristics of RNA-RBP networks which will pave the way for developing novel approaches to tackle the pandemic issue of obesity.
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Affiliation(s)
- Esam S B Salem
- Division of Endocrinology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States.,Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Andrew D Vonberg
- Division of Endocrinology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Vishnupriya J Borra
- Division of Endocrinology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Rupinder K Gill
- Division of Endocrinology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Takahisa Nakamura
- Division of Endocrinology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States.,Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Department of Metabolic Bioregulation, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
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Hagman E, Hecht L, Marko L, Azmanov H, Groop L, Santoro N, Caprio S, Weiss R. Predictors of responses to clinic-based childhood obesity care. Pediatr Diabetes 2018; 19:1351-1356. [PMID: 30225917 DOI: 10.1111/pedi.12774] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 09/03/2018] [Accepted: 09/09/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND/OBJECTIVE Lifestyle modification is the therapy of choice for childhood obesity, yet the response rate is variable and may be affected by genetic factors. We aimed to investigate predictors of poor response to lifestyle modification obesity treatment in children. METHODS A prospective cohort study of 434 youths (64.5% females) between 4 and 20 years of age undergoing a standard care of lifestyle modification obesity management for 35.9 ± 20.8 months at Yale Childhood Obesity Clinic, USA. The primary outcome was a "poor response," defined as the quintile with the largest increase in BMI Z-score over time. The secondary outcome was the endpoint BMI Z-score. Covariates investigated were sex, baseline pubertal status and degree of obesity, race, biochemical profile, and family history of overweight. A subsample (n = 214) had FTO genotyping (SNP rs8050136) tested. RESULTS Males (hazard ratio [HR] = 5.35, 95% confidence interval [CI] [3.32-8.61], P < 0.0001) and pubertal adolescents (HR = 2.78, [1.40-5.50], P = 0.003) compared to prepubertal children were more prone to respond poorly. Baseline degree of obesity was associated with relative protection from responding poorly (HR per BMI Z-score unit = 0.32, [0.17-0.61], P = 0.0006). Carriers of the FTO obesity-predisposing allele (AA genotype) were protected from responding poorly compared to non-carriers (CC genotype) (HR = 0.33, [0.12-0.88], P = 0.028). CONCLUSIONS Boys and pubertal adolescents are more prone to respond poorly to standard obesity care while those with greater baseline degree of obesity and carriers of the FTO obesity-predisposing allele are not.
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Affiliation(s)
- Emilia Hagman
- Department of Human Metabolism and Nutrition, Braun School of Public Health, Hebrew University, Jerusalem, Israel.,Department of Clinical Science, Intervention and Technology, Karolinska Insitutet, Stockholm, Sweden
| | - Lior Hecht
- Ruth Rappaport Children's Hospital, Rambam Medical Center, Haifa, Israel
| | - Limor Marko
- Department of Human Metabolism and Nutrition, Braun School of Public Health, Hebrew University, Jerusalem, Israel
| | - Henny Azmanov
- Department of Human Metabolism and Nutrition, Braun School of Public Health, Hebrew University, Jerusalem, Israel
| | - Leif Groop
- Department of Clinical Sciences, Diabetes and Endocrinology, Lund University, Malmö, Sweden
| | - Nicola Santoro
- Department of Pediatrics, Yale University, New Haven, Connecticut
| | - Sonia Caprio
- Department of Pediatrics, Yale University, New Haven, Connecticut
| | - Ram Weiss
- Ruth Rappaport Children's Hospital, Rambam Medical Center, Haifa, Israel.,Department of Human Metabolism and Nutrition, Braun School of Public Health, Hebrew University, Jerusalem, Israel
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Ben Halima M, Kallel A, Baara A, Ben Wafi S, Sanhagi H, Slimane H, Jemaa R, Feki M. The rs9939609 polymorphism in the fat mass and obesity associated (FTO) gene is associated with obesity in Tunisian population. Biomarkers 2018; 23:787-792. [PMID: 30041557 DOI: 10.1080/1354750x.2018.1499129] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
CONTEXT Variations in the fat mass and obesity-associated gene (FTO) has been associated with obesity in many populations, but the results are conflicting. OBJECTIVE The aim of this study was to evaluate the effect of the rs9939609 polymorphism in the FTO gene on obesity risk and plasma leptin, adiponectin, insulin and lipid concentrations in Tunisians. MATERIALS AND METHODS Four hundred and ninety-four subjects with obesity and 334 non-obese participated in this study. The rs9939609 (T/A) genotype was determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. RESULTS Significant differences in genotype frequencies were observed between cases and controls. In the separate analysis by gender, the association between the AA genotype and obesity was statistically significant in women but not in men. After stratification by obesity class this association remains only with obesity class III. DISCUSSION Our study is in agreement with studies on Caucasian, Portuguese and Cebu Filipino populations where a gender-specific association was found between rs9939609 polymorphism and obesity. It is also in agreement with studies on Mexican, Spanish and European populations, where an association was found with obesity class III. CONCLUSION The rs9939609 polymorphism of FTO gene is associated with obesity, especially obesity class III in women.
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Affiliation(s)
- Meriam Ben Halima
- a Laboratory of Biochemistry, Faculty of Medicine of Tunis , University of Tunis El Manar, Rabta Hospital , Tunis , Tunisia.,b Faculty of Sciences of Tunis , University of Tunis El Manar , Tunis , Tunisia
| | - Amani Kallel
- a Laboratory of Biochemistry, Faculty of Medicine of Tunis , University of Tunis El Manar, Rabta Hospital , Tunis , Tunisia
| | - Abir Baara
- a Laboratory of Biochemistry, Faculty of Medicine of Tunis , University of Tunis El Manar, Rabta Hospital , Tunis , Tunisia
| | - Safa Ben Wafi
- a Laboratory of Biochemistry, Faculty of Medicine of Tunis , University of Tunis El Manar, Rabta Hospital , Tunis , Tunisia.,b Faculty of Sciences of Tunis , University of Tunis El Manar , Tunis , Tunisia
| | - Haifa Sanhagi
- a Laboratory of Biochemistry, Faculty of Medicine of Tunis , University of Tunis El Manar, Rabta Hospital , Tunis , Tunisia
| | - Hedia Slimane
- c Department of Endocrinology , Rabta Hospital , Tunis , Tunisia
| | - Riadh Jemaa
- a Laboratory of Biochemistry, Faculty of Medicine of Tunis , University of Tunis El Manar, Rabta Hospital , Tunis , Tunisia
| | - Moncef Feki
- a Laboratory of Biochemistry, Faculty of Medicine of Tunis , University of Tunis El Manar, Rabta Hospital , Tunis , Tunisia
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Fenwick PH, Jeejeebhoy K, Dhaliwal R, Royall D, Brauer P, Tremblay A, Klein D, Mutch DM. Lifestyle genomics and the metabolic syndrome: A review of genetic variants that influence response to diet and exercise interventions. Crit Rev Food Sci Nutr 2018; 59:2028-2039. [PMID: 29400991 DOI: 10.1080/10408398.2018.1437022] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Metabolic syndrome (MetS) comprises a cluster of risk factors that includes central obesity, dyslipidemia, impaired glucose homeostasis and hypertension. Individuals with MetS have elevated risk of type 2 diabetes and cardiovascular disease; thus placing significant burdens on social and healthcare systems. Lifestyle interventions (comprised of diet, exercise or a combination of both) are routinely recommended as the first line of treatment for MetS. Only a proportion of people respond, and it has been assumed that psychological and social aspects primarily account for these differences. However, the etiology of MetS is multifactorial and stems, in part, on a person's genetic make-up. Numerous single nucleotide polymorphisms (SNPs) are associated with the various components of MetS, and several of these SNPs have been shown to modify a person's response to lifestyle interventions. Consequently, genetic variants can influence the extent to which a person responds to changes in diet and/or exercise. The goal of this review is to highlight SNPs reported to influence the magnitude of change in body weight, dyslipidemia, glucose homeostasis and blood pressure during lifestyle interventions aimed at improving MetS components. Knowledge regarding these genetic variants and their ability to modulate a person's response will provide additional context for improving the effectiveness of personalized lifestyle interventions that aim to reduce the risks associated with MetS.
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Affiliation(s)
- Peri H Fenwick
- a Department of Human Health and Nutritional Sciences , University of Guelph , Guelph , Ontario , Canada
| | - Khursheed Jeejeebhoy
- b Emeritus Professor of Medicine and Physician , St. Michael's Hospital , Toronto , Ontario , Canada
| | | | - Dawna Royall
- d Department of Family Relations and Applied Nutrition , University of Guelph , Guelph , Ontario , Canada
| | - Paula Brauer
- d Department of Family Relations and Applied Nutrition , University of Guelph , Guelph , Ontario , Canada
| | - Angelo Tremblay
- e Department of Kinesiology , Faculty of Medicine, Université Laval , Québec City , Québec , Canada
| | - Doug Klein
- f Department of Family Medicine , University of Alberta , Edmonton , Alberta , Canada
| | - David M Mutch
- a Department of Human Health and Nutritional Sciences , University of Guelph , Guelph , Ontario , Canada
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The importance of gene-environment interactions in human obesity. Clin Sci (Lond) 2017; 130:1571-97. [PMID: 27503943 DOI: 10.1042/cs20160221] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 05/23/2016] [Indexed: 12/16/2022]
Abstract
The worldwide obesity epidemic has been mainly attributed to lifestyle changes. However, who becomes obese in an obesity-prone environment is largely determined by genetic factors. In the last 20 years, important progress has been made in the elucidation of the genetic architecture of obesity. In parallel with successful gene identifications, the number of gene-environment interaction (GEI) studies has grown rapidly. This paper reviews the growing body of evidence supporting gene-environment interactions in the field of obesity. Heritability, monogenic and polygenic obesity studies provide converging evidence that obesity-predisposing genes interact with a variety of environmental, lifestyle and treatment exposures. However, some skepticism remains regarding the validity of these studies based on several issues, which include statistical modelling, confounding, low replication rate, underpowered analyses, biological assumptions and measurement precision. What follows in this review includes (1) an introduction to the study of GEI, (2) the evidence of GEI in the field of obesity, (3) an outline of the biological mechanisms that may explain these interaction effects, (4) methodological challenges associated with GEI studies and potential solutions, and (5) future directions of GEI research. Thus far, this growing body of evidence has provided a deeper understanding of GEI influencing obesity and may have tremendous applications in the emerging field of personalized medicine and individualized lifestyle recommendations.
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Lee JS, Cheong HS, Shin HD. BMI prediction within a Korean population. PeerJ 2017; 5:e3510. [PMID: 28674662 PMCID: PMC5493974 DOI: 10.7717/peerj.3510] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 06/06/2017] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Body Mass Index (BMI) is widely regarded as an important clinical trait for obesity and other diseases such as Type 2 diabetes, coronary heart disease, and osteoarthritis. METHODS This study uses 6,011 samples of genotype data from ethnic Korean subjects. The data was retrieved from the Korea Association Resource. To identify the BMI-related markers within the Korean population, we collected genome-wide association study (GWAS) markers using a GWAS catalog and also obtained other markers from nearby regions. Of the total 6,011 samples, 5,410 subjects were used as part of a single nucleotide polymorphism (SNP) selection set in order to identify the overlapping BMI-associated SNPs within a 10-fold cross validation. RESULTS We selected nine SNPs (rs12566985 (FPGT-TNNI3K), rs6545809 (ADCY3), rs2943634 (located near LOC646736), rs734597 (located near TFAP2B), rs11030104 (BDNF), rs7988412 (GTF3A), rs2241423 (MAP2K5), rs7202116 (FTO), and rs6567160 (located near LOC105372152) to assist in BMI prediction. The calculated weighted genetic risk scores based on the selected 9 SNPs within the SNP selection set were applied to the final validation set consisting of 601 samples. Our results showed upward trends in the BMI values (P < 0.0001) within the 10-fold cross validation process for R2 > 0.22. These trends were also observed within the validation set for all subjects, as well as within the validation sets divided by gender (P < 0.0001, R2 > 0.46). DISCUSSION The set of nine SNPs identified in this study may be useful for prospective predictions of BMI.
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Affiliation(s)
- Jin Sol Lee
- Research Institute for Basic Science, Sogang University, Seoul, Republic of Korea.,Department of Life Science, Sogang University, Seoul, South Korea
| | - Hyun Sub Cheong
- Department of Genetic Epidemiology, SNP Genetics, Inc., Seoul, Republic of Korea
| | - Hyoung-Doo Shin
- Research Institute for Basic Science, Sogang University, Seoul, Republic of Korea.,Department of Life Science, Sogang University, Seoul, South Korea.,Department of Genetic Epidemiology, SNP Genetics, Inc., Seoul, Republic of Korea
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Genetic, dietary, and non-dietary risk factors of obesity among preparatory-year female students at Taibah University, Saudi Arabia. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2017. [DOI: 10.1016/j.jtusci.2016.06.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Rotter I, Skonieczna-Żydecka K, Kosik-Bogacka D, Adler G, Rył A, Laszczyńska M. Relationships between FTO rs9939609, MC4R rs17782313, and PPARγ rs1801282 polymorphisms and the occurrence of selected metabolic and hormonal disorders in middle-aged and elderly men - a preliminary study. Clin Interv Aging 2016; 11:1723-1732. [PMID: 27920511 PMCID: PMC5126003 DOI: 10.2147/cia.s120253] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
PURPOSE Metabolic disorders, including MetS, obesity, and lipid disorders, may be related to genetic factors. Metabolic disorders are associated with decreased TS levels in aging men. The aim of this study was to evaluate the relationship between FTO rs9939609, MC4R rs17782313, and PPARγ rs1801282 polymorphisms and the presence of MetS and its components, the concurrent lipid disorders, as well as sex hormone concentrations. SUBJECTS AND METHODS This study involved 272 men of Caucasian descent aged 50-75 years. Lipid profile, including TCh, LDL, HDL, and TG, was evaluated by spectrophotometric method. Anthropometric measurements concerned WC and blood pressure. MetS was diagnosed according to the criteria of the IDF. Sex hormone profile, including TST, FTS, E2, DHEAS, and SHBG, was examined using enzyme-linked immunosorbent assay. Polymorphisms within FTO, MC4R, and PPARγ genes were identified using polymerase chain reaction-restriction fragments length polymorphism. RESULTS This study did not show links between the analyzed genetic polymorphisms and the presence of MetS, T2DM, HT, and obesity. However, higher concentrations of TCh and LDL were found in men with the FTO rs9939609 polymorphism in the recessive mode of inheritance (P=0.03 and P=0.05, respectively). Lower WC was found to be associated with MC4R rs17782313 gene inherited in the same model (P=0.005). CONCLUSION FTO rs9939609, MC4R rs17782313, and PPARγ rs1801282 polymorphisms seem to have little effect on the incidence of metabolic malfunctions and no effect on androgen-related disorders in the examined middle-aged and elderly men.
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Affiliation(s)
| | | | | | | | - Aleksandra Rył
- Department of Histology and Developmental Biology, Pomeranian Medical University, Szczecin, Poland
| | - Maria Laszczyńska
- Department of Histology and Developmental Biology, Pomeranian Medical University, Szczecin, Poland
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Livingstone KM, Celis-Morales C, Papandonatos GD, Erar B, Florez JC, Jablonski KA, Razquin C, Marti A, Heianza Y, Huang T, Sacks FM, Svendstrup M, Sui X, Church TS, Jääskeläinen T, Lindström J, Tuomilehto J, Uusitupa M, Rankinen T, Saris WHM, Hansen T, Pedersen O, Astrup A, Sørensen TIA, Qi L, Bray GA, Martinez-Gonzalez MA, Martinez JA, Franks PW, McCaffery JM, Lara J, Mathers JC. FTO genotype and weight loss: systematic review and meta-analysis of 9563 individual participant data from eight randomised controlled trials. BMJ 2016; 354:i4707. [PMID: 27650503 PMCID: PMC6168036 DOI: 10.1136/bmj.i4707] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVE To assess the effect of the FTO genotype on weight loss after dietary, physical activity, or drug based interventions in randomised controlled trials. DESIGN Systematic review and random effects meta-analysis of individual participant data from randomised controlled trials. DATA SOURCES Ovid Medline, Scopus, Embase, and Cochrane from inception to November 2015. ELIGIBILITY CRITERIA FOR STUDY SELECTION Randomised controlled trials in overweight or obese adults reporting reduction in body mass index, body weight, or waist circumference by FTO genotype (rs9939609 or a proxy) after dietary, physical activity, or drug based interventions. Gene by treatment interaction models were fitted to individual participant data from all studies included in this review, using allele dose coding for genetic effects and a common set of covariates. Study level interactions were combined using random effect models. Metaregression and subgroup analysis were used to assess sources of study heterogeneity. RESULTS We identified eight eligible randomised controlled trials for the systematic review and meta-analysis (n=9563). Overall, differential changes in body mass index, body weight, and waist circumference in response to weight loss intervention were not significantly different between FTO genotypes. Sensitivity analyses indicated that differential changes in body mass index, body weight, and waist circumference by FTO genotype did not differ by intervention type, intervention length, ethnicity, sample size, sex, and baseline body mass index and age category. CONCLUSIONS We have observed that carriage of the FTO minor allele was not associated with differential change in adiposity after weight loss interventions. These findings show that individuals carrying the minor allele respond equally well to dietary, physical activity, or drug based weight loss interventions and thus genetic predisposition to obesity associated with the FTO minor allele can be at least partly counteracted through such interventions. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42015015969.
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Affiliation(s)
- Katherine M Livingstone
- Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne NE4 5PL, UK Deakin University, Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Victoria, Australia
| | - Carlos Celis-Morales
- Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne NE4 5PL, UK BHF Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Science, University of Glasgow, Glasgow, UK
| | - George D Papandonatos
- Department of Biostatistics, Brown University School of Public Health, Providence, RI, USA
| | - Bahar Erar
- Department of Biostatistics, Brown University School of Public Health, Providence, RI, USA
| | - Jose C Florez
- Diabetes Unit and Center for Human Genetic Research, Massachusetts General Hospital, Boston, MA, USA Programs in Metabolism and Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Kathleen A Jablonski
- George Washington University Department of Epidemiology and Biostatistics The Biostatistics Center, Rockville, MD, USA
| | - Cristina Razquin
- Department of Preventive Medicine and Public Health, University of Navarra, Pamplona, Spain CIBER Fisiopatologia de la Obesidad y Nutricion and PREDIMED Network from Instituto de Salud Carlos III Spanish Government, Spain
| | - Amelia Marti
- CIBER Fisiopatologia de la Obesidad y Nutricion and PREDIMED Network from Instituto de Salud Carlos III Spanish Government, Spain Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain
| | - Yoriko Heianza
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA
| | - Tao Huang
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA Epidemiology Domain, Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - Frank M Sacks
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Mathilde Svendstrup
- Novo Nordisk Foundation Centre for Basic Metabolic Research, Section on Metabolic Genetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark Danish Diabetes Academy, Odense, Denmark
| | - Xuemei Sui
- Department of Exercise Science, University of South Carolina, Columbia, SC, USA
| | - Timothy S Church
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA, USA
| | - Tiina Jääskeläinen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland Department of Medical and Clinical Genetics, University of Helsinki, Finland
| | - Jaana Lindström
- Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland
| | - Jaakko Tuomilehto
- Dasman Diabetes Institute, Dasman, Kuwait City, Kuwait Diabetes Research Group, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Matti Uusitupa
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Tuomo Rankinen
- Human Genomics Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, USA
| | - Wim H M Saris
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre +, Maastricht, Netherlands
| | - Torben Hansen
- Novo Nordisk Foundation Centre for Basic Metabolic Research, Section on Metabolic Genetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Oluf Pedersen
- Novo Nordisk Foundation Centre for Basic Metabolic Research, Section on Metabolic Genetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Arne Astrup
- Department of Nutrition, Exercise and Sports, Copenhagen University, Rolighedsvej 30, Frederiksberg C, Denmark
| | - Thorkild I A Sørensen
- Novo Nordisk Foundation Centre for Basic Metabolic Research, Section on Metabolic Genetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark Institute of Preventive Medicine, Bispebjerg and Frederiksberg Hospitals, The Capital Region, Denmark
| | - Lu Qi
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - George A Bray
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA, USA
| | - Miguel A Martinez-Gonzalez
- CIBER Fisiopatologia de la Obesidad y Nutricion and PREDIMED Network from Instituto de Salud Carlos III Spanish Government, Spain Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain
| | - J Alfredo Martinez
- CIBER Fisiopatologia de la Obesidad y Nutricion and PREDIMED Network from Instituto de Salud Carlos III Spanish Government, Spain Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain Food Science and Physiology, Centre for Nutrition Research, University of Navarra, Pamplona, Spain
| | - Paul W Franks
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA Department of Clinical Sciences, Genetic and Molecular Epidemiology Unit, Lund University, Skåne University Hospital Malmö, Malmö, Sweden
| | - Jeanne M McCaffery
- The Miriam Hospital and the Alpert School of Medicine, Brown University, Providence, USA
| | - Jose Lara
- Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne NE4 5PL, UK Department of Applied Sciences, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | - John C Mathers
- Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne NE4 5PL, UK
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Xiang L, Wu H, Pan A, Patel B, Xiang G, Qi L, Kaplan RC, Hu F, Wylie-Rosett J, Qi Q. FTO genotype and weight loss in diet and lifestyle interventions: a systematic review and meta-analysis. Am J Clin Nutr 2016; 103:1162-70. [PMID: 26888713 PMCID: PMC4807705 DOI: 10.3945/ajcn.115.123448] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 01/20/2016] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Studies have suggested that the fat mass and obesity-associated (FTO) genotype is associated with individual variability in weight loss in response to diet/lifestyle interventions, but results are inconsistent. OBJECTIVE We aimed to provide a summary of the literature evaluating the relation between the FTO genotype and weight loss in response to diet/lifestyle interventions. DESIGN A search of English-language articles in the PubMed and Embase databases (through 30 April 2015) was performed. Eligible studies were diet/lifestyle weight-loss intervention studies conducted in adults that reported changes in body weight or body mass index (BMI) by the FTO variant rs9939609 (or its proxy). Differences in weight loss between FTO genotypes across studies were pooled with the use of fixed-effect models. RESULTS A meta-analysis of 10 studies (comprising 6951 participants) that reported the results of additive genetic models showed that individuals with the FTO TA genotype and AA genotype (those with the obesity-predisposing A allele) had 0.18-kg (95% CI: -0.09-, 0.45-kg;P= 0.19; NS) and 0.44-kg (95% CI: 0.09-, 0.79-kg;P= 0.015) greater weight loss, respectively, than those with the TT genotype. A meta-analysis of 14 studies (comprising 7700 participants) that reported the results of dominant genetic models indicated a 0.20-kg (-0.43-, 0.04-kg) greater weight loss in the TA/AA genotype than in the TT genotype (P= 0.10). In addition, differences in weight loss between the AA genotype and TT genotype were significant in studies with a diet intervention only, adjustment for baseline BMI or body weight, and several other subgroups. However, the relatively small number of studies limited these stratified analyses, and there was no statistically significant difference between subgroups. CONCLUSIONS This meta-analysis suggests that individuals carrying the homozygous FTO obesity-predisposing allele may lose more weight through diet/lifestyle interventions than noncarriers. Our data provide evidence for genetic variability in response to diet/lifestyle interventions on weight loss, although clinical applications of these findings need further investigations.
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Affiliation(s)
- Lingwei Xiang
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY
| | - Hongyu Wu
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
| | - An Pan
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bhakti Patel
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY
| | - Guangda Xiang
- Department of Endocrinology, Wuhan General Hospital of Guangzhou Command, Wuhan, China; and
| | - Lu Qi
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Robert C Kaplan
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY
| | - Frank Hu
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Judith Wylie-Rosett
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY
| | - Qibin Qi
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY;
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de Luis DA, Aller R, Izaola O, Primo D, Urdiales S, Romero E. Effects of a High-Protein/Low-Carbohydrate Diet versus a Standard Hypocaloric Diet on Weight and Cardiovascular Risk Factors: Role of a Genetic Variation in the rs9939609 FTO Gene Variant. JOURNAL OF NUTRIGENETICS AND NUTRIGENOMICS 2015; 8:128-36. [PMID: 26457804 DOI: 10.1159/000441142] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 09/17/2015] [Indexed: 11/19/2022]
Abstract
BACKGROUND AND AIMS The common polymorphism rs9939609 of the fat mass- and obesity-associated gene (FTO) has been linked to obesity. Our aim was to investigate its role in weight loss after the administration of a high-protein/low-carbohydrate diet compared to a standard hypocaloric diet (1,000 kcal/day). METHODS During 9 months, 195 patients were randomly allocated to a high-protein hypocaloric diet (HP diet) and a standard hypocaloric diet (S diet). RESULTS With the HP diet, BMI (-1.9 ± 1.2 vs. -2.10 ± 1.8; p < 0.05), weight (-6.5 ± 2.1 vs. -10.1 ± 4.1 kg; p < 0.05), fat mass (-3.9 ± 3.2 vs. -6.0 ± 3.4 kg; p < 0.05) and waist circumference (-5.7 ± 5.0 vs. -9.9 ± 5.5 cm; p < 0.05) decreased in both genotype groups (TT vs. AT + AA). With the S diet, BMI (-0.9 ± 1.1 vs. -1.8 ± 1.2; p < 0.05), weight (-3.2 ± 3.0 vs. -9.1 ± 3.6 kg; p < 0.05), fat mass (-3.0 ± 3.1 vs. -5.2 ± 3.1 kg; p < 0.05) and waist circumference (-3.1 ± 4.0 vs. -8.1 ± 4.9 cm; p < 0.05) decreased in both genotype groups. With the HP diet and in both genotype groups, glucose, insulin levels, homeostasis model assessment of insulin resistance (HOMA-IR), total cholesterol, triglycerides and low-density lipoprotein (LDL) decreased. With the S diet, total cholesterol and LDL decreased. CONCLUSION Weight loss was better in A allele carriers than noncarriers, and metabolic improvement was better with the HP diet.
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Affiliation(s)
- Daniel Antonio de Luis
- Center of Investigation of Endocrinology and Nutrition, Medicine School and Department of Endocrinology and Nutrition, Hospital Clx00ED;nico Universitario, University of Valladolid, Valladolid, Spain
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Huggins GS, Berger S, McCaffery JM. Can Genetics Modify the Influence of Healthy Lifestyle on Lipids in the Context of Obesity and Type 2 Diabetes? CURRENT CARDIOVASCULAR RISK REPORTS 2015. [DOI: 10.1007/s12170-015-0464-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bouwman FG, Boer JMA, Imholz S, Wang P, Verschuren WMM, Dollé MET, Mariman ECM. Gender-specific genetic associations of polymorphisms in ACE, AKR1C2, FTO and MMP2 with weight gain over a 10-year period. GENES AND NUTRITION 2014; 9:434. [PMID: 25322899 DOI: 10.1007/s12263-014-0434-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 10/06/2014] [Indexed: 12/13/2022]
Abstract
Weight gain, when it leads to overweight or obesity, is nowadays one of the major health problems. ACE, FTO, AKR1C2, TIMP4 and MMP2 genes have been implicated in previous studies on weight regulation. This study investigated the contribution of polymorphisms in these five candidate genes to the risk of weight gain over a 10-year time period. Two groups were selected from participants of the Doetinchem cohort study who were followed over a 10-year period: A stable weight group (±2 kg/10 year; n = 259) and a weight gainers group who increased their body weight by roughly 10 % (>8 kg/10 year; n = 237). Starting BMI was between 20 and 35 kg/m(2) and baseline age between 20 and 45 years. Selected SNPs and insert/deletion in candidate genes were measured in each group. In men, the allelic distribution of FTO rs9939609 (χ (2) p = 0.005), ACE rs4340 (χ (2) p = 0.006) and AKR1C2 rs12249281 (χ (2) p = 0.019) differed between the weight stable and weight gainers group. Interaction between FTO rs9939609 and ACE rs4340 was observed. In women, the allelic distribution of MMP2 rs1132896 differed between the weight stable and weight gainers group (χ (2) p = 0.00001). The A-allele of FTO was associated with a 1.99× higher risk of gaining weight in men (OR 1.99, p = 0.020), while in women, the C-allele of MMP2 was associated with a 2.50× higher risk of weight gain (OR 2.50, p = 0.001) over the 10-year period. We found that FTO in men and MMP2 in women are associated with weight gain over a 10-year follow-up period.
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Affiliation(s)
- Freek G Bouwman
- Department of Human Biology, Nutrition and Toxicology Research Institute Maastricht (NUTRIM), Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands,
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Matsuo T, Nakata Y, Hotta K, Tanaka K. The FTO genotype as a useful predictor of body weight maintenance: initial data from a 5-year follow-up study. Metabolism 2014; 63:912-7. [PMID: 24798613 DOI: 10.1016/j.metabol.2014.03.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2013] [Revised: 03/20/2014] [Accepted: 03/27/2014] [Indexed: 11/26/2022]
Abstract
OBJECTIVE We examined associations between the fat-mass and obesity-associated (FTO) gene (rs9939609) and any weight change over a 5-year period following a 14-week lifestyle intervention among middle-aged Japanese women. MATERIALS/METHODS One hundred twenty-eight Japanese women (BMI >25 kg/m²) participated in a 14-week weight loss intervention between 2004 and 2006. Of the participants, 62 consented to the 5-year follow-up measurement session. Of these women, 47 women who achieved a weight loss of at least 10% from their baseline values during the 14-week intervention were included in the analysis. Body weight, body fat, abdominal fat assessed by CT scans, and metabolic risk factors (i.e., blood pressure, lipids, and glucose) were measured at baseline, post-intervention, and at the 5-year follow-up. RESULTS During the 5-year non-intervention period, increases in body weight, fat mass, total abdominal fat, and subcutaneous abdominal fat were significantly greater in subjects with the homozygous minor allele (AA genotype, n=4; 8.5%) than in those with the homozygous major allele (TT genotype, n=31; 66.0%) or heterozygous allele (TA genotype, n=12; 25.5%). In multiple regression analyses, the variation in rs9939609 was a significant and independent predictor (P<0.001) for regaining weight during the 5-year follow-up. CONCLUSIONS Our data suggest that Japanese women with the risk allele (AA) of rs9939609 may have more difficulty preventing fat gain from reoccurring after weight loss intervention than women with the other genotypes.
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Affiliation(s)
- Tomoaki Matsuo
- Hazard Evaluation and Epidemiology Research Group, National Institute of Occupational Safety and Health, Japan.
| | | | - Kikuko Hotta
- Pharmacogenomics Project EBM Research Center, Kyoto University
| | - Kiyoji Tanaka
- Faculty of Health and Sport Sciences, University of Tsukuba
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Dietary Management and Genetic Predisposition. Curr Nutr Rep 2013. [DOI: 10.1007/s13668-013-0050-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Wallmeier D, Winkler JK, Fleming T, Woehning A, Huennemeyer K, Roeder E, Nawroth PP, Friederich HC, Wolfrum C, Schultz JH, Rudofsky G. Genetic modulation of the serotonergic pathway: influence on weight reduction and weight maintenance. GENES & NUTRITION 2013; 8:601-610. [PMID: 23797338 PMCID: PMC3824832 DOI: 10.1007/s12263-013-0350-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Accepted: 06/07/2013] [Indexed: 10/26/2022]
Abstract
The serotonergic pathway plays a major role in the development of obesity. Its activity can be modulated by the 5-HT transporter-linked polymorphic region in the SLC6A4 gene and the upstream variable number of tandem repeats polymorphism in the MAOA gene. We studied whether these genetic modulations have an influence on weight reduction and weight maintenance in a one-year weight reduction program (OPTIFAST®52). The polymorphisms were genotyped by PCR in a sample of 135 female and 67 male subjects with severe obesity (44 ± 13 years, 122.3 ± 22.2 kg, BMI: 41.7 ± 6.7 kg/m2). The program leads to a total weight loss of 19.9 ± 9.8 kg (16.9 ± 8.3 %) in women and 27.4 ± 13.6 kg (20.4 ± 9.9 %) in men. Anthropometric measurements and blood levels were determined at the start of the program (T0), after the weight reduction phase (T1) and after the subsequent weight maintenance phase at the end of the program (T2). Each polymorphism alone did not significantly influence weight loss or weight maintenance neither in men nor in women. However, women carrying both risk genotypes (SS and 3/3) displayed a lower total weight loss during the program (p = 0.05). This effect derived mainly from difficulties in the weight maintenance phase (p = 0.11), while the weight reduction phase was not affected (p = 0.61). No influence was found in men (p = 0.93). Modulation of the serotonergic pathway by carrying both risk alleles seems to influence success of weight loss programs in women with severe obesity due to problems in stabilizing body weight after weight reduction.
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Affiliation(s)
- Dirk Wallmeier
- />Department of Medicine I and Clinical Chemistry, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
| | - Julia K. Winkler
- />Department of Medicine I and Clinical Chemistry, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
| | - Thomas Fleming
- />Department of Medicine I and Clinical Chemistry, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
| | - Annika Woehning
- />Department of Medicine I and Clinical Chemistry, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
| | - Katharina Huennemeyer
- />Department of Psychosomatic and General Internal Medicine, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
| | - Eva Roeder
- />Institute of Food Nutrition and Health, Swiss Federal Institute of Technology, ETH Zürich, SLA C94, Schorenstraße 16, 8603 Schwerzenbach, Switzerland
| | - Peter P. Nawroth
- />Department of Medicine I and Clinical Chemistry, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
| | - Hans-Christoph Friederich
- />Department of Psychosomatic and General Internal Medicine, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
| | - Christian Wolfrum
- />Institute of Food Nutrition and Health, Swiss Federal Institute of Technology, ETH Zürich, SLA C94, Schorenstraße 16, 8603 Schwerzenbach, Switzerland
| | - Jobst-Hendrik Schultz
- />Department of Psychosomatic and General Internal Medicine, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
| | - Gottfried Rudofsky
- />Department of Medicine I and Clinical Chemistry, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
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Winkler JK, Schultz JH, Woehning A, Piel D, Gartner L, Hildebrand M, Roeder E, Nawroth PP, Wolfrum C, Rudofsky G. Effectiveness of a low-calorie weight loss program in moderately and severely obese patients. Obes Facts 2013; 6:469-80. [PMID: 24135973 PMCID: PMC5644682 DOI: 10.1159/000355822] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Accepted: 05/25/2013] [Indexed: 11/20/2022] Open
Abstract
AIMS To compare effectiveness of a 1-year weight loss program in moderately and severely obese patients. METHODS The study sample included 311 obese patients participating in a weight loss program, which comprised a 12-week weight reduction phase (low-calorie formula diet) and a 40-week weight maintenance phase. Body weight and glucose and lipid values were determined at the beginning of the program as well as after the weight reduction and the weight maintenance phase. Participants were analyzed according to their BMI class at baseline (30-34.9 kg/m²; 35-39.9 kg/m²; 40-44.9 kg/m²; 45-49.9 kg/m²; ≥50 kg/m²). Furthermore, moderately obese patients (BMI < 40 kg/m²) were compared to severely obese participants (BMI ≥ 40 kg/m²). RESULTS Out of 311 participants, 217 individuals completed the program. Their mean baseline BMI was 41.8 ± 0.5 kg/m². Average weight loss was 17.9 ± 0.6%, resulting in a BMI of 34.3 ± 0.4 kg/m² after 1 year (p < 0.001). Overall weight loss was not significantly different in moderately and severely obese participants. Yet, severely obese participants achieved greater weight loss during the weight maintenance phase than moderately obese participants (-3.1 ± 0.7% vs. -1.2 ± 0.6%; p = 0.04). Improvements in lipid profiles and glucose metabolism were found throughout all BMI classes. CONCLUSION 1-year weight loss intervention improves body weight as well as lipid and glucose metabolism not only in moderately, but also in severely obese individuals.
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Affiliation(s)
- Julia K. Winkler
- Department of Medicine I and Clinical Chemistry, Schwerzenbach, Switzerland
| | - Jobst-Hendrik Schultz
- Department of General Internal Medicine and Psychosomatics, University of Heidelberg, Heidelberg, Germany
| | - Annika Woehning
- Department of Medicine I and Clinical Chemistry, Schwerzenbach, Switzerland
| | - David Piel
- Department of Medicine I and Clinical Chemistry, Schwerzenbach, Switzerland
| | - Lena Gartner
- Department of Medicine I and Clinical Chemistry, Schwerzenbach, Switzerland
| | - Mirjam Hildebrand
- Department of Medicine I and Clinical Chemistry, Schwerzenbach, Switzerland
| | - Eva Roeder
- Swiss Federal Institute of Technology, Institute of Food Nutrition and Health, ETH Zürich, SLA C94, Schwerzenbach, Switzerland
| | - Peter P. Nawroth
- Department of Medicine I and Clinical Chemistry, Schwerzenbach, Switzerland
| | - Christian Wolfrum
- Swiss Federal Institute of Technology, Institute of Food Nutrition and Health, ETH Zürich, SLA C94, Schwerzenbach, Switzerland
| | - Gottfried Rudofsky
- Department of Medicine I and Clinical Chemistry, Schwerzenbach, Switzerland
- *Gottfried Rudofsky, MD, Department of Medicine I and Clinical Chemistry, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg (Germany),
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Obesity: Underlying Mechanisms and the Evolving Influence of Diet. Curr Nutr Rep 2012. [DOI: 10.1007/s13668-012-0028-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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