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Zafirovska M, Zafirovski A, Režen T, Pintar T. The Outcome of Metabolic and Bariatric Surgery in Morbidly Obese Patients with Different Genetic Variants Associated with Obesity: A Systematic Review. Nutrients 2024; 16:2510. [PMID: 39125390 PMCID: PMC11313945 DOI: 10.3390/nu16152510] [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: 06/30/2024] [Revised: 07/22/2024] [Accepted: 07/27/2024] [Indexed: 08/12/2024] Open
Abstract
Metabolic and bariatric surgery (MBS) effectively treats obesity and related comorbidities, though individual responses vary. This systematic review examines how genetic variants influence MBS outcomes in morbidly obese patients. A comprehensive search in PubMed, Embase, Medline, and the Cochrane Library identified 1572 studies, with 52 meeting the inclusion criteria. Two reviewers independently filtered and selected studies, including relevant cross-references. Research focused on polymorphisms in genes such as UCP2, UCP3, 5-HT2C, MC4R, FKBP5, FTO, CAT haplotypes, LYPAL-1, PTEN, FABP-2, CNR1, LEP656, LEP223, GLP-1R, APOA-1, APOE, ADIPOQ, IL-6, PGC1a, TM6SF2, MBOAT7, PNPLA3, TCF7L2, ESR1, GHSR, GHRL, CD40L, DIO2, ACSL5, CG, TAS2R38, CD36, OBPIIa, NPY, BDNF, CLOCK, and CAMKK2. Most studies explored associations with post-surgery weight loss, while some examined metabolic, cardiovascular, taste, and eating behavior effects as well. Understanding the role of genetic factors in weight loss and metabolic outcomes post-MBS can help tailor personalized treatment plans for improved efficacy and long-term success. Further research with larger sample sizes and extended follow-up is needed to clarify the effects of many genetic variants on MBS outcomes in morbidly obese patients.
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Affiliation(s)
- Marija Zafirovska
- Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia; (M.Z.); (A.Z.)
- Association of General Practice/Family Medicine of South-East Europe (AGP/FM SEE), St. Vladimir Komarov No. 40/6, 1000 Skopje, North Macedonia
| | - Aleksandar Zafirovski
- Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia; (M.Z.); (A.Z.)
- General Hospital Jesenice, Cesta maršala Tita 112, 4270 Jesenice, Slovenia
- Clinical Institute of Radiology, University Medical Centre Ljubljana, Zaloška cesta 7, 1000 Ljubljana, Slovenia
| | - Tadeja Režen
- Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia; (M.Z.); (A.Z.)
- Centre for Functional Genomics and Bio-Chips, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Zaloška cesta 4, 1000 Ljubljana, Slovenia
| | - Tadeja Pintar
- Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia; (M.Z.); (A.Z.)
- Department of Abdominal Surgery, University Medical Centre Ljubljana, Zaloška cesta 2, 1000 Ljubljana, Slovenia
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van der Meer R, Mohamed SA, Monpellier VM, Liem RSL, Hazebroek EJ, Franks PW, Frayling TM, Janssen IMC, Serlie MJ. Genetic variants associated with weight loss and metabolic outcomes after bariatric surgery: A systematic review. Obes Rev 2023; 24:e13626. [PMID: 37632325 DOI: 10.1111/obr.13626] [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: 02/06/2023] [Revised: 07/15/2023] [Accepted: 07/17/2023] [Indexed: 08/27/2023]
Abstract
The extent to which genetic variations contribute to interindividual differences in weight loss and metabolic outcomes after bariatric surgery is unknown. Identifying genetic variants that impact surgery outcomes may contribute to clinical decision making. This review evaluates current evidence addressing the association of genetic variants with weight loss and changes in metabolic parameters after bariatric surgery. A search was conducted using Medline, Embase, Scopus, Web of Science, and Cochrane Library. Fifty-two eligible studies were identified. Single nucleotide polymorphisms (SNPs) at ADIPOQ (rs226729, rs1501299, rs3774261, and rs17300539) showed a positive association with postoperative change in measures of glucose homeostasis and lipid profiles (n = 4), but not with weight loss after surgery (n = 6). SNPs at FTO (rs11075986, rs16952482, rs8050136, rs9939609, rs9930506, and rs16945088) (n = 10) and MC4R (rs11152213, rs476828, rs2229616, rs9947255, rs17773430, rs5282087, and rs17782313) (n = 9) were inconsistently associated with weight loss and metabolic improvement. Four studies examining the UCP2 SNP rs660339 reported associations with postsurgical weight loss. In summary, there is limited evidence supporting a role for specific genetic variants in surgical outcomes after bariatric surgery. Most studies have adopted a candidate gene approach, limiting the scope for discovery, suggesting that the absence of compelling evidence is not evidence of absence.
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Affiliation(s)
- Rieneke van der Meer
- Nederlandse Obesitas Kliniek, Huis ter Heide, The Netherlands
- Department of Endocrinology & Metabolism, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Siham A Mohamed
- Genetic and Molecular Epidemiology Unit, Department of Clinical Sciences, Lund University, Lund, Sweden
| | | | - Ronald S L Liem
- Department of Surgery, Groene Hart Hospital, Gouda, The Netherlands
- Nederlandse Obesitas Kliniek, The Hague and Gouda, The Netherlands
| | - Eric J Hazebroek
- Department of Surgery, Rijnstate Hospital/Vitalys Clinics, Arnhem, The Netherlands
| | - Paul W Franks
- Genetic and Molecular Epidemiology Unit, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Timothy M Frayling
- Genetics of Complex Traits, University of Exeter Medical School, University of Exeter, Exeter, UK
| | | | - Mireille J Serlie
- Department of Endocrinology & Metabolism, Amsterdam University Medical Centers, Amsterdam, The Netherlands
- Department of Endocrinology & Metabolism, Yale University, New Haven, CT, USA
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Wang L, Xu G, Tian C, Sang Q, Yu C, Wuyun Q, Wang Z, Chen W, Amin B, Wang D, Chen G, Lian D, Zhang N. Combination of Single-Nucleotide Polymorphisms and Preoperative Body Mass Index to Predict Weight Loss After Laproscopic Sleeve Gastrectomy in Chinese Patients with Body Mass Index ≥ 32.5 kg/m2. Obes Surg 2022; 32:3951-3960. [DOI: 10.1007/s11695-022-06330-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 10/11/2022] [Accepted: 10/11/2022] [Indexed: 11/24/2022]
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Haplotype of ESR1 and PPARD Genes Is Associated with Higher Anthropometric Changes in Han Chinese Obesity by Adjusting Dietary Factors-An 18-Month Follow-Up. Nutrients 2022; 14:nu14204425. [PMID: 36297109 PMCID: PMC9611750 DOI: 10.3390/nu14204425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 11/05/2022] Open
Abstract
The obesity genetic effect may play a major role in obesogenic environment. A combined case-control and an 18-month follow-up were carried out, including a total of 311 controls and 118 obese cases. All participants were aged in the range of 20-55 y/o. The body mass index (BMI) of obese cases and normal controls was in the range of 27.0-34.9 and 18.5-23.9 kg/m2, respectively. The rs712221 on Estrogen receptor1 (ESR1) and rs2016520 on Peroxisome proliferator-activated receptor delta (PPARD) showed significant associations with obesity. The TT (odds ratio (OR): 2.42; 95% confidence interval (CI): 1.46-4.01) and TT/TC (OR: 2.80; 95% CI: 1.14-6.85) genotypes on rs712221 and rs2016520 had significantly higher obesity risks, respectively. Moreover, the synergic effect of these two risk SNPs (2-RGH) exhibited an almost geometrical increase in obesity risk (OR: 7.00; 95% CI: 2.23-21.99). Obese individuals with 2-RGH had apparently higher changes in BMI increase, body weight gain and dietary fiber intake but a lower total energy intake within the 18-month follow-up.
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Abdul Wahab R, le Roux CW. A review on the beneficial effects of bariatric surgery in the management of obesity. Expert Rev Endocrinol Metab 2022; 17:435-446. [PMID: 35949186 DOI: 10.1080/17446651.2022.2110865] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 08/03/2022] [Indexed: 10/15/2022]
Abstract
INTRODUCTION Obesity is a chronic disease with a complex interplay of multiple factors such as genetic, metabolic, behavioral, and environmental factors. The management of obesity includes; lifestyle modification, psychological therapy, pharmacological therapy, and bariatric surgery. To date, bariatric surgery is the most effective treatment for obesity by offering a long-term reduction in weight, remission of obesity-related complications, and improving quality of life. However, bariatric surgery is not equally effective in all patients. Thus, if we can predict who would benefit most, it will improve the risk versus benefit ratio of having surgery. AREAS COVERED In this narrative review, we explore the question on who will benefit the most from bariatric surgery by examining the recent evidence in the literature. In addition, we investigate the predisposing predictors of bariatric surgery response. Finally, we offer the best strategies in the clinic to explain the potential benefits of bariatric surgery to patients. EXPERT OPINION Bariatric surgery is an effective obesity management approach. Despite its efficacy, considerable variation of individual response exists. Thus, it is important to recognize patients that will benefit most, but at present very few predictors are available which can be clinically useful.
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Affiliation(s)
- Roshaida Abdul Wahab
- Diabetes Complications Research Centre, Conway Institute, University College Dublin, Belfied, Ireland
| | - Carel W le Roux
- Diabetes Complications Research Centre, Conway Institute, University College Dublin, Belfied, Ireland
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Gupta SR, Zhou Y, Wadden TA, Berkowitz RI, Chao AM. A Systematic Review of Genetic Correlates of Weight Loss After Bariatric Surgery. Obes Surg 2021; 31:4612-4623. [PMID: 34370160 DOI: 10.1007/s11695-021-05585-6] [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: 01/08/2021] [Revised: 07/07/2021] [Accepted: 07/09/2021] [Indexed: 11/29/2022]
Abstract
This systematic review synthesized research evaluating the relationship between genetic predictors and weight loss after bariatric surgery. Fifty-seven studies were identified that examined single genes or genetic risk scores. Uncoupling protein (UCP) rs660339 was associated with excess weight loss after surgery in 4 of 6 studies. The most commonly assessed genes were fat mass and obesity-associated (FTO) gene (n = 10) and melanocortin-4 receptor (MC4R) (n = 14). Both were inconsistently related to weight loss. Genetic risk scores predicted weight loss in 6 of 7 studies. This evidence suggests the potential of using genetic variants and genetic risk scores to predict the amount of weight loss anticipated after bariatric surgery and identify patients who may be at risk for suboptimal weight reduction.
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Affiliation(s)
- Sapana R Gupta
- Drexel University College of Medicine, Philadelphia, PA, USA
| | - Yingjie Zhou
- Department of Biobehavioral Health Sciences, University of Pennsylvania School of Nursing, 418 Curie Blvd, Philadelphia, PA, 19104, USA
| | - Thomas A Wadden
- Department of Psychiatry, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Robert I Berkowitz
- Department of Psychiatry, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.,Department of Child and Adolescent Psychiatry and Behavioral Sciences, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Ariana M Chao
- Department of Biobehavioral Health Sciences, University of Pennsylvania School of Nursing, 418 Curie Blvd, Philadelphia, PA, 19104, USA. .,Department of Psychiatry, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.
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Souza de Oliveira M, Sachs Nique P, Crispim D, Marmontel de Souza B. The association of uncoupling proteins 1, 2, and 3 with weight loss variability after bariatric surgery: a systematic review. Surg Obes Relat Dis 2020; 16:1858-1868. [DOI: 10.1016/j.soard.2020.06.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 05/05/2020] [Accepted: 06/11/2020] [Indexed: 12/12/2022]
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Regan JA, Shah SH. Obesity Genomics and Metabolomics: a Nexus of Cardiometabolic Risk. Curr Cardiol Rep 2020; 22:174. [PMID: 33040225 DOI: 10.1007/s11886-020-01422-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/14/2020] [Indexed: 12/24/2022]
Abstract
PURPOSE OF REVIEW Obesity is a significant international public health epidemic with major downstream consequences on morbidity and mortality. While lifestyle factors contribute, there is an evolving understanding of genomic and metabolomic pathways involved with obesity and its relationship with cardiometabolic risk. This review will provide an overview of some of these important findings from both a biologic and clinical perspective. RECENT FINDINGS Recent studies have identified polygenic risk scores and metabolomic biomarkers of obesity and related outcomes, which have also highlighted biological pathways, such as the branched-chain amino acid (BCAA) pathway that is dysregulated in this disease. These biomarkers may help in personalizing obesity interventions and for mitigation of future cardiometabolic risk. A multifaceted approach is necessary to impact the growing epidemic of obesity and related diseases. This will likely include incorporating precision medicine approaches with genomic and metabolomic biomarkers to personalize interventions and improve risk prediction.
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Affiliation(s)
- Jessica A Regan
- Department of Medicine, Duke University, Durham, NC, USA.,Duke Molecular Physiology Institute, Duke University, 300 N. Duke Street, DUMC, Box 104775, Durham, NC, 27701, USA
| | - Svati H Shah
- Department of Medicine, Duke University, Durham, NC, USA. .,Duke Molecular Physiology Institute, Duke University, 300 N. Duke Street, DUMC, Box 104775, Durham, NC, 27701, USA.
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Cohen RV. Precision medicine, obesity, and bariatric surgery outcomes. Surg Obes Relat Dis 2020; 16:1808-1809. [PMID: 32773147 DOI: 10.1016/j.soard.2020.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/04/2020] [Accepted: 07/07/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Ricardo V Cohen
- The Center for the Treatment of Obesity and Diabetes, Oswaldo Cruz German Hospital, Sao Paulo, Brazil
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Li J, Jiang R, Cong X, Zhao Y. UCP2 gene polymorphisms in obesity and diabetes, and the role of UCP2 in cancer. FEBS Lett 2019; 593:2525-2534. [PMID: 31330574 DOI: 10.1002/1873-3468.13546] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/08/2019] [Accepted: 07/12/2019] [Indexed: 12/16/2022]
Abstract
Mitochondria are the primary sites for ATP synthesis and free radical generation in organisms. Abnormal mitochondrial metabolism contributes to many diseases, including obesity, diabetes and cancer. UCP2 is an ion/anion transporter located in mitochondrial inner membrane, and has a crucial role in regulating oxidative stress, cellular metabolism, cell proliferation and cell death. Polymorphisms of the UCP2 gene have been associated with diabetes and obesity because UCP2 is involved in energy expenditure and insulin secretion. Moreover, UCP2 gene expression is often amplified in cancers, and increased UCP2 expression contributes to cancer growth, cancer metabolism, anti-apoptosis and drug resistance. The present review summarizes the latest findings of UCP2 with respect to obesity, diabetes and cancer.
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Affiliation(s)
- Jinran Li
- Department of Dermatology, China-Japan Union Hospital, Jilin University, Changchun, China.,Department of Pharmacology, Toxicology & Neurosciences, LSU Health Sciences Center, Shreveport, LA, USA
| | - Rihua Jiang
- Department of Dermatology, China-Japan Union Hospital, Jilin University, Changchun, China
| | - Xianling Cong
- Department of Dermatology, China-Japan Union Hospital, Jilin University, Changchun, China
| | - Yunfeng Zhao
- Department of Pharmacology, Toxicology & Neurosciences, LSU Health Sciences Center, Shreveport, LA, USA
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Kosta S, Bhandari M, Mathur W, Fobi M. The obscure role of genetics on weight loss after bariatric surgery. Surg Obes Relat Dis 2018; 15:515-518. [PMID: 30713120 DOI: 10.1016/j.soard.2018.12.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 12/07/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Susmit Kosta
- Central Research Lab, Sri Aurbindo Medical College and PG Institute, Indore, India
| | - Mohit Bhandari
- Mohak Bariatrics and Robotics, Mohak Hi-Tech Specialty Hospital, SAIMS Campus, Indore, India
| | - Winni Mathur
- Mohak Bariatrics and Robotics, Mohak Hi-Tech Specialty Hospital, SAIMS Campus, Indore, India
| | - Mathias Fobi
- Mohak Bariatrics and Robotics, Mohak Hi-Tech Specialty Hospital, SAIMS Campus, Indore, India
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12
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Weight loss and metabolic improvements in obese patients undergoing gastric banding and gastric banded plication: A comparison. Nutrition 2018; 57:290-299. [PMID: 30219686 DOI: 10.1016/j.nut.2018.05.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 05/16/2018] [Accepted: 05/25/2018] [Indexed: 02/08/2023]
Abstract
OBJECTIVES Obesity is a pandemic health problem. Bariatric surgery is the only efficient method for long-term effective weight loss in subjects with severe obesity. Laparoscopic adjustable gastric banding (LAGB) has been widely applied for weight loss. However, a novel technique called laparoscopic adjustable gastric banded plication (LAGBP) has been proposed as an alternative to LAGB. Surgeons generally consider LAGBP to have a relative advantage on weight loss than that derived from LAGB. This initial study applied various biostatistical models and considered a relative longer observation period to compare the effects of LAGB and LAGBP. METHODS A total of 340 obese patients (290 who underwent LAGB and 50 who underwent LAGBP) with a body mass index of ≥35 kg/m2 and ages 20 to 55 y were recruited from the Division of General Surgery, Taipei Medical University Hospital in Taipei, Taiwan and observed for 24 to 36 mo postoperatively. RESULTS Both surgical procedures resulted in significant weight loss, amelioration of poor glucose metabolism, and decreased serum triacylglycerol levels. However, the trend analysis showed no significant differences between the postoperative effects of LAGB and LAGBP (P for trend = 0.21 for body mass index reduction, 0.13 for total body fat percentage reduction, 0.25-0.29 for glucose metabolism amelioration, and 0.10-0.29 for blood pressure improvement). Improvements in serum total cholesterol and high-density lipoprotein cholesterol levels were observed after LAGB only and LAGBP only, respectively, at 24 mo postoperatively. The Framingham Coronary Heart Disease Risk score also showed significant decrease for patients who underwent LAGB and LAGBP. CONCLUSIONS Both LAGB and LAGBP demonstrated comparable efficacy in reducing body weight and improving metabolic parameters in a 24 to 36 mo follow-up period. LABG showed the ability to reduce systolic blood pressure and LAGBP exhibited triacylglycerol-lowering effects. A longer observational period is needed in future studies.
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Role of MMP-1 (-519A/G, -1607 1G/2G), MMP-3 (Lys45Glu), MMP-7 (-181A/G), and MMP-12 (-82A/G) Variants and Plasma MMP Levels on Obesity-Related Phenotypes and Microvascular Reactivity in a Tunisian Population. DISEASE MARKERS 2017; 2017:6198526. [PMID: 29317790 PMCID: PMC5727656 DOI: 10.1155/2017/6198526] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 10/04/2017] [Accepted: 10/19/2017] [Indexed: 12/17/2022]
Abstract
Aims The impact of MMP-1 (-519A/G, -1607 1G/2G), MMP-3 Lys45Glu (A/G), MMP-7 -181A/G, and MMP-12 -82A/G variants and plasma MMP levels on obesity and microvascular reactivity in Tunisians. Methods Our population included 202 nonobese and 168 obese subjects. Anthropometric, biochemical, and microvascular parameters were determined according to standard protocols. PCR-RFLP and ELISA were used to determine the genetic variants and levels of MMPs, respectively. Results The MMP-3 45Glu (G) allele associates with higher anthropometric values and MMP-3 levels compared to AA genotype carriers (BMI (kg/m2): 30 ± 0.51 versus 27.33 ± 0.8, P = 0.004; MMP-3 levels: 7.45 (4.77–11.91) versus 5.21 (3.60–10.21) ng/ml, P = 0.006). The MMP-12 -82G allele was also associated with higher BMI values when compared to subjects carrying the AA genotype (31.41 ± 0.85 versus 28.76 ± 0.43, P < 0.001). Individuals carrying the MMP-3 45G or MMP-12 -82G variants were also associated with a higher risk for severe forms of obesity (MMP-3: OR = 1.9, P = 0.002; MMP-12: OR = 2.63, P = 0.003). Similarly, the MMP-7 -181G allele was associated with a higher MMP-7 level and an increased risk for morbid obesity when compared to AA genotype carriers (0.32 (0.31–0.60) versus 0.18 (0.17–0.24) ng/ml, P = 0.01; OR = 1.67, P = 0.02, resp.). Conclusion MMP-3, MMP-7, and MMP-12 polymorphisms associate with obesity risk and its severity.
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Sun X, Li P, Yang X, Li W, Qiu X, Zhu S. From genetics and epigenetics to the future of precision treatment for obesity. Gastroenterol Rep (Oxf) 2017; 5:266-270. [PMID: 29230297 PMCID: PMC5691547 DOI: 10.1093/gastro/gox033] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 06/25/2017] [Accepted: 07/11/2017] [Indexed: 01/01/2023] Open
Abstract
Obesity has become a major global health problem, epitomized by excess accumulation of body fat resulting from an imbalance between energy intake and expenditure. The treatments for obesity range from modified nutrition and additional physical activity, to drugs or surgery. But the curative effect of each method seems to vary between individuals. With progress in the genetics and epigenetics of obesity, personalization of the clinical management of obesity may be at our doorstep. This review presents an overview of our current understanding of the genetics and epigenetics of obesity and how these findings influence responses to treatments. As bariatric surgery is the most effective long-term treatment for morbid obesity, we pay special attention to the association between genetic factors and clinical outcomes of bariatric surgery. Finally, we discuss the prospects for precision obesity treatment.
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Affiliation(s)
- Xulong Sun
- Department of General Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, China
| | - Pengzhou Li
- Department of General Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, China
| | - Xiangwu Yang
- Department of General Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, China
| | - Weizheng Li
- Department of General Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, China
| | - Xianjie Qiu
- Department of General Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, China
| | - Shaihong Zhu
- Department of General Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, China
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Velázquez-Fernández D, Mercado-Celis G, Flores-Morales J, Clavellina-Gaytán D, Vidrio R, Vidrio E, Mosti M, Sánchez-Aguilar H, Rodriguez D, León P, Herrera MF. Analysis of Gene Candidate SNP and Ancestral Origin Associated to Obesity and Postoperative Weight Loss in a Cohort of Obese Patients Undergoing RYGB. Obes Surg 2016; 27:1481-1492. [DOI: 10.1007/s11695-016-2501-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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de Luis DA, Izaola O, Primo D, Pacheco D. Effect of the rs10767664 Variant of the Brain-Derived Neurotrophic Factor Gene on Weight Change and Cardiovascular Risk Factors in Morbidly Obese Patients after Biliopancreatic Diversion Surgery. JOURNAL OF NUTRIGENETICS AND NUTRIGENOMICS 2016; 9:116-122. [DOI: 10.1159/000448102] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 06/30/2016] [Indexed: 11/19/2022]
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Nicoletti CF, de Oliveira APRP, Brochado MJF, Pinhel MAS, de Oliveira BAP, Marchini JS, Dos Santos JE, Salgado W, Cury NM, de Araújo LF, Silva WA, Nonino CB. The Ala55Val and -866G>A polymorphisms of the UCP2 gene could be biomarkers for weight loss in patients who had Roux-en-Y gastric bypass. Nutrition 2016; 33:326-330. [PMID: 27743836 DOI: 10.1016/j.nut.2016.07.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 06/20/2016] [Accepted: 07/31/2016] [Indexed: 12/25/2022]
Abstract
OBJECTIVE The aim of this study was to investigate whether the Ala55Val and -866G>A polymorphisms of the UCP2 gene are related to weight loss and changes in body composition after bariatric surgery performed by Roux-en-Y gastric bypass (RYGB). METHODS This longitudinal study enrolled obese patients submitted to RYGB. Data regarding weight (kg), body mass index (kg/m2), fat-free mass (FFM; kg), fat mass (kg), weight loss (kg and %), and percent excess weight loss were collected from both preoperative and 1-y postoperative medical records. Polymorphisms were genotyped by allelic discrimination using real-time polymerase chain reaction and TaqMan-predesigned single nucleotide polymorphism Genotyping Assay kits (Applied Biosystems, Foster City, CA, USA). The t test was used to compare variables between genotypes of each polymorphism to analyze the dominant and recessive models. Linear regression models were used to adjust the effects of initial weight, age, and sex on the variation of weight and body composition (P < 0.05). RESULTS We analyzed 150 severely obese individuals (age 47.2 ± 10.5 y; 80% women). Genotype analysis showed a greater prevalence of heterozygous GA (41.3%) for -866G>A polymorphism and CT (39.3%) for Ala55Val polymorphism. Individuals who carried the T (CT+TT) and A (GA+AA) mutated alleles for Ala55Val and -866G>A, respectively, showed a higher weight and FFM loss. CONCLUSION The mutated alleles T for Ala55Val and A for -866G>A polymorphism could be biomarkers of weight loss 1 y after RYGB.
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Affiliation(s)
- Carolina F Nicoletti
- Department of Internal Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | | | - Maria José F Brochado
- Department of Internal Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Marcela A S Pinhel
- Department of Internal Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Bruno A P de Oliveira
- Department of Internal Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Julio S Marchini
- Department of Internal Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - José E Dos Santos
- Department of Internal Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Wilson Salgado
- Department of Surgery and Anatomy, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Nathalia Moreno Cury
- Department of Genetics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Luiza Ferreira de Araújo
- Department of Genetics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Wilson A Silva
- Department of Genetics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Carla B Nonino
- Department of Internal Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
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Khorgami Z, Arheart KL, Zhang C, Messiah SE, de la Cruz-Muñoz N. Effect of ethnicity on weight loss after bariatric surgery. Obes Surg 2015; 25:769-76. [PMID: 25430619 DOI: 10.1007/s11695-014-1474-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Previous studies have reported better weight loss after bariatric surgery among non-Hispanic whites (NHW) versus non-Hispanic blacks (NHB) and Hispanics. The majority of these studies took place in areas where NHW are the majority. This study aimed to compare post-surgery weight outcomes by ethnicity in a geographic area where Hispanics are the majority. METHODS A retrospective medical chart review of 3268 patients (1561 Hispanic, 660 NHB, and 1047 NHW) who underwent Roux-en-Y gastric bypass (RYGB) or Adjustable Gastric Band (AGB) placement from 2002 to 2012 were analyzed. Percentages of excess weight loss (EWL) and body mass index (BMI) changes at 6, 12, and 24 months post-surgery were compared by ethnic group. RESULTS At 6 months, EWL was significantly different by ethnicity (52.7 ± 15.9 Hispanics, 49.7 ± 15.7 NHW, 43.0 ± 17.3 NHB, P < 0.001). These differences remained at 1 year (66.0 ± 20.3 Hispanics, 64.0 ± 20.3 NHW, 54.1 ± 21.3 NHB, P < 0.001) and 2 years (68.6 ± 24.1 Hispanics, 69.5 ± 21.2 NHW, 57.6 ± 25.4 NHB, P < 0.001). Ethnic group changes in BMI were similar to EWL changes. Analysis stratified by gender, type of surgery, and BMI category (<40, 40-49.99, ≥50 kg/m(2)) showed lower EWL in NHB than Hispanics and NHW. NHW had higher EWL than Hispanics only when they underwent AGB and had a BMI >40 kg/m(2). CONCLUSIONS Up to 2 years after RYGB, mean EWL and BMI reduction patterns are similar among NHW and Hispanics and significantly better than NHB. These patterns were comparable but not as pronounced among patients with AGB surgery. Our findings suggest that social factors may contribute to successful weight loss after bariatric surgery.
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Affiliation(s)
- Zhamak Khorgami
- Division of Laparoendoscopic and Bariatric Surgery, The DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, 3650 NW 82nd Avenue, Suite 302, Miami, FL, 33166, USA,
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Comparative physiogenomic analyses of weight loss in response to 2 modes of bariatric surgery: demonstration with candidate neuropsychiatric and cardiometabolic genes. Surg Obes Relat Dis 2015; 12:369-77. [PMID: 26968501 DOI: 10.1016/j.soard.2015.09.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 09/10/2015] [Accepted: 09/23/2015] [Indexed: 12/22/2022]
Abstract
BACKGROUND Surgical weight loss response is variable, with suboptimal outcomes in some patients. We hypothesized that genetic biomarkers may be related to weight change. METHODS We tested 330 single nucleotide polymorphisms (SNPs) in genes relevant to metabolic regulation in 161 patients whose decrease in body mass index (BMI), 1 year after laparoscopic adjustable gastric banding (LAGB) or Roux-en-Y gastric bypass (RYGB), was small (lowest quartile response) or large (highest quartile response). LAGB patients whose BMI decreased≤4.7 or≥10.2 units comprised groups I (n = 43) and II (n = 40), respectively. RYGB patients whose BMI decreased≤13.6 or≥19.8 units comprised groups III (n = 39) and IV (n = 39), respectively. Within each surgery, SNPs with large differences in reference allele frequency (z score>2, corresponding to values displaced 2 standard deviations [SD] from the mean for all SNPs) in low versus high quartiles, were identified. We compared reference allele frequencies, within surgical procedure, using the χ(2) test (using Bonferroni correction for multiple testing). RESULTS The mean percent excess weight losses (±SD) corresponding to groups I, II, III, and IV were: 16 (±12), 64 (±30), 55 (±16), and 75 (±17), respectively. SNPs with z score>2 were identified in genes involved in LAGB response, lipid metabolic regulation (APOE, rs439401; APOC4, rs2288911), neural processes (DRD3, rs167771; HTR3 B, rs3758987), and xeno- or endobiotic metabolism (CYP3 A4, rs12333983); and for RYGB response, in lipid transport (SCARB1, rs10846744), folate metabolism (MTHFR, rs2066470), regulation of glycolysis in immune cells (HIF1 A, rs1951795), vitamin K cycling (VKORC1, rs2359612), and xeno- or endobiotic metabolism (CYP3 A4, rs2242480). For LAGB response, APOE SNP frequencies were significantly different. CONCLUSIONS With further validation, information derived from patient DNA may be useful to predict surgical weight loss outcomes and guide selection of surgical approach.
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de Luis DA, Pacheco D, Aller R, Izaola O. Role of the rs6923761 gene variant in glucagon-like peptide 1 receptor gene on cardiovascular risk factors and weight loss after biliopancreatic diversion surgery. ANNALS OF NUTRITION AND METABOLISM 2014; 65:259-63. [PMID: 25376673 DOI: 10.1159/000365975] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Accepted: 07/17/2014] [Indexed: 11/19/2022]
Abstract
BACKGROUND Studies of the glucagon-like peptide 1 (GLP-1) receptor (GLP-1R) have been directed at identifying polymorphisms in the GLP-1R gene that may be a contributing factor in the pathogenesis of obesity. OBJECTIVE We decided to investigate the role of the rs6923761 GLP-1R polymorphism on outcomes after biliopancreatic diversion. DESIGN A sample of 137 morbidly obese patients was operated. Weight, blood pressure, basal glucose and lipid profile were measured at the basal visit and at each following visit (basal, 3, 9, 12 and 18 months). RESULTS Body mass index, weight and waist circumference were lower in non-A allele carriers than A allele carriers 12 and 18 months after surgery. The initial weight percent loss at 12 months (45.6 vs. 39.8%; p < 0.05) or 18 months (49.6 vs. 41.3%; p < 0.05) was higher in patients with GG genotype than A allele carriers. CONCLUSION Our study showed a higher weight loss 12 and 18 months after bariatric surgery in GG variant than A allele carriers. The biochemical parameters and cardiovascular comorbidity rates improved similarly in both genotypes.
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Affiliation(s)
- Daniel Antonio de Luis
- Center of Investigation of Endocrinology and Nutrition, Medicine School and Unit of Investigation, Hospital Clinico Universitario, University of Valladolid, Valladolid, Spain
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Paz-Filho G, Boguszewski MCS, Mastronardi CA, Patel HR, Johar AS, Chuah A, Huttley GA, Boguszewski CL, Wong ML, Arcos-Burgos M, Licinio J. Whole exome sequencing of extreme morbid obesity patients: translational implications for obesity and related disorders. Genes (Basel) 2014; 5:709-25. [PMID: 25158045 PMCID: PMC4198926 DOI: 10.3390/genes5030709] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 07/23/2014] [Accepted: 08/14/2014] [Indexed: 12/11/2022] Open
Abstract
Whole-exome sequencing (WES) is a new tool that allows the rapid, inexpensive and accurate exploration of Mendelian and complex diseases, such as obesity. To identify sequence variants associated with obesity, we performed WES of family trios of one male teenager and one female child with severe early-onset obesity. Additionally, the teenager patient had hypopituitarism and hyperprolactinaemia. A comprehensive bioinformatics analysis found de novo and compound heterozygote sequence variants with a damaging effect on genes previously associated with obesity in mice (LRP2) and humans (UCP2), among other intriguing mutations affecting ciliary function (DNAAF1). A gene ontology and pathway analysis of genes harbouring mutations resulted in the significant identification of overrepresented pathways related to ATP/ITP (adenosine/inosine triphosphate) metabolism and, in general, to the regulation of lipid metabolism. We discuss the clinical and physiological consequences of these mutations and the importance of these findings for either the clinical assessment or eventual treatment of morbid obesity.
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Affiliation(s)
- Gilberto Paz-Filho
- Genome Biology Department, The John Curtin School of Medical Research, The Australian National University, Garran Rd, building 131, Acton, Canberra, ACT 0200, Australia.
| | - Margaret C S Boguszewski
- Endocrine Division (SEMPR), Department of Internal Medicine, Federal University of Parana, Avenida Agostinho Leão Junior, 285-Alto da Glória. CEP 80030-110, Curitiba-PR, Brazil.
| | - Claudio A Mastronardi
- Genome Biology Department, The John Curtin School of Medical Research, The Australian National University, Garran Rd, building 131, Acton, Canberra, ACT 0200, Australia.
| | - Hardip R Patel
- Genome Biology Department, The John Curtin School of Medical Research, The Australian National University, Garran Rd, building 131, Acton, Canberra, ACT 0200, Australia.
| | - Angad S Johar
- Genome Biology Department, The John Curtin School of Medical Research, The Australian National University, Garran Rd, building 131, Acton, Canberra, ACT 0200, Australia.
| | - Aaron Chuah
- Genome Biology Department, The John Curtin School of Medical Research, The Australian National University, Garran Rd, building 131, Acton, Canberra, ACT 0200, Australia.
| | - Gavin A Huttley
- Genome Biology Department, The John Curtin School of Medical Research, The Australian National University, Garran Rd, building 131, Acton, Canberra, ACT 0200, Australia.
| | - Cesar L Boguszewski
- Endocrine Division (SEMPR), Department of Internal Medicine, Federal University of Parana, Avenida Agostinho Leão Junior, 285-Alto da Glória. CEP 80030-110, Curitiba-PR, Brazil.
| | - Ma-Li Wong
- Mind and Brain Theme, South Australian Health and Medical Research Institute, and Department of Psychiatry, School of Medicine, Flinders University, PO Box 11060 Adelaide SA 5001, Adelaide, Australia.
| | - Mauricio Arcos-Burgos
- Genome Biology Department, The John Curtin School of Medical Research, The Australian National University, Garran Rd, building 131, Acton, Canberra, ACT 0200, Australia.
| | - Julio Licinio
- Mind and Brain Theme, South Australian Health and Medical Research Institute, and Department of Psychiatry, School of Medicine, Flinders University, PO Box 11060 Adelaide SA 5001, Adelaide, Australia.
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Brondani LA, Assmann TS, de Souza BM, Bouças AP, Canani LH, Crispim D. Meta-analysis reveals the association of common variants in the uncoupling protein (UCP) 1-3 genes with body mass index variability. PLoS One 2014; 9:e96411. [PMID: 24804925 PMCID: PMC4013025 DOI: 10.1371/journal.pone.0096411] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 04/05/2014] [Indexed: 12/19/2022] Open
Abstract
Background The relationship between uncoupling protein (UCP) 1–3 polymorphisms and susceptibility to obesity has been investigated in several genetic studies. However, the impact of these polymorphisms on obesity is still under debate, with contradictory results being reported. Until this date, no meta-analysis evaluated the association of UCP polymorphisms with body mass index (BMI) variability. Thus, this paper describe a meta-analysis conducted to evaluate if the -3826A/G (UCP1); -866G/A, Ala55Val and Ins/Del (UCP2) and -55C/T (UCP3) polymorphisms are associated with BMI changes. Methods A literature search was run to identify all studies that investigated associations between UCP1-3 polymorphisms and BMI. Weighted mean differences (WMD) were calculated for different inheritance models. Results Fifty-six studies were eligible for inclusion in the meta-analysis. Meta-analysis results showed that UCP2 55Val/Val genotype was associated with increased BMI in Europeans [Random Effect Model (REM) WMD 0.81, 95% CI 0.20, 1.41]. Moreover, the UCP2 Ins allele and UCP3-55T/T genotype were associated with increased BMI in Asians [REM WMD 0.46, 95% CI 0.09, 0.83 and Fixed Effect Model (FEM) WMD 1.63, 95% CI 0.25, 3.01]. However, a decreased BMI mean was observed for the UCP2-866 A allele in Europeans under a dominant model of inheritance (REM WMD −0.18, 95% CI −0.35, −0.01). There was no significant association of the UCP1-3826A/G polymorphism with BMI mean differences. Conclusions The meta-analysis detected a significant association between the UCP2-866G/A, Ins/Del, Ala55Val and UCP3-55C/T polymorphisms and BMI mean differences.
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Affiliation(s)
- Letícia A. Brondani
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Postgraduate Program in Medical Sciences, Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Tais S. Assmann
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Postgraduate Program in Medical Sciences, Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Bianca M. de Souza
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Postgraduate Program in Medical Sciences, Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Ana P. Bouças
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Postgraduate Program in Medical Sciences, Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Luis H. Canani
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Postgraduate Program in Medical Sciences, Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Daisy Crispim
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Postgraduate Program in Medical Sciences, Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- * E-mail:
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Donadelli M, Dando I, Fiorini C, Palmieri M. UCP2, a mitochondrial protein regulated at multiple levels. Cell Mol Life Sci 2014; 71:1171-90. [PMID: 23807210 PMCID: PMC11114077 DOI: 10.1007/s00018-013-1407-0] [Citation(s) in RCA: 125] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 05/16/2013] [Accepted: 06/10/2013] [Indexed: 12/11/2022]
Abstract
An ever-increasing number of studies highlight the role of uncoupling protein 2 (UCP2) in a broad range of physiological and pathological processes. The knowledge of the molecular mechanisms of UCP2 regulation is becoming fundamental in both the comprehension of UCP2-related physiological events and the identification of novel therapeutic strategies based on UCP2 modulation. The study of UCP2 regulation is a fast-moving field. Recently, several research groups have made a great effort to thoroughly understand the various molecular mechanisms at the basis of UCP2 regulation. In this review, we describe novel findings concerning events that can occur in a concerted manner at various levels: Ucp2 gene mutation (single nucleotide polymorphisms), UCP2 mRNA and protein expression (transcriptional, translational, and protein turn-over regulation), UCP2 proton conductance (ligands and post-transcriptional modifications), and nutritional and pharmacological regulation of UCP2.
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Affiliation(s)
- Massimo Donadelli
- Section of Biochemistry, Deparment of Life and Reproduction Sciences, University of Verona, Strada Le Grazie 8, 37134, Verona, Italy,
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Georgiadou D, Sergentanis TN, Nixon A, Diamantis T, Tsigris C, Psaltopoulou T. Efficacy and safety of laparoscopic mini gastric bypass. A systematic review. Surg Obes Relat Dis 2014; 10:984-91. [PMID: 24913595 DOI: 10.1016/j.soard.2014.02.009] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Revised: 02/04/2014] [Accepted: 02/10/2014] [Indexed: 12/22/2022]
Abstract
BACKGROUND Laparoscopic mini-gastric bypass (LMGB) is a relatively new bariatric procedure; published studies are accumulating in various settings. The objective of this study was to summarize the available evidence about the efficacy and safety of LMGB. METHODS A systematic search in the literature was performed , and PubMed and reference lists were scrutinized (end-of-search date: July 15, 2013). For the assessment of the eligible articles, the Newcastle-Ottawa quality assessment scale was used. RESULTS Ten eligible studies were included in this study, reporting data on 4,899 patients. According to all included studies, LMGB induced substantial weight and body mass index reduction, as well as substantial excess weight loss. Moreover, resolution or improvement in all major associated medical illnesses and improvement in overall Gastrointestinal Quality of Life Index score were recorded. Major bleeding and anastomotic ulcer were the most commonly reported complications. Readmission rate ranged from 0%- 11%, whereas the rate of revision operations ranged from .3%- 6%. The latter were conducted due to a variety of medical reasons such as inadequate or excessive weight loss, malnutrition, and upper gastrointestinal bleeding. Finally, the mortality rate ranged between 0% and .5% among primary LMGB procedures. CONCLUSION LMGB represents an effective bariatric procedure; its safety and minimal postoperative morbidity seem remarkable. Randomized comparative studies seem mandatory for the further evaluation of LMGB.
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Affiliation(s)
- Despoina Georgiadou
- 3(rd) Surgical Clinic of George Gennimatas General Hospital, Athens, Greece; Postgraduate Program "Minimally Invasive Surgery, Robotic Surgery and Telesurgery," National and Kapodistrian University of Athens, School of Medicine, Athens, Greece.
| | - Theodoros N Sergentanis
- Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, University of Athens, Athens, Greece
| | - Alexander Nixon
- 3(rd) Surgical Clinic of George Gennimatas General Hospital, Athens, Greece
| | - Theodoros Diamantis
- 1(st) Department of Surgery, University of Athens, Laiko General Hospital, Athens, Greece; Postgraduate Program "Minimally Invasive Surgery, Robotic Surgery and Telesurgery," National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Christos Tsigris
- 1(st) Department of Surgery, University of Athens, Laiko General Hospital, Athens, Greece; Postgraduate Program "Minimally Invasive Surgery, Robotic Surgery and Telesurgery," National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Theodora Psaltopoulou
- Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, University of Athens, Athens, Greece
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Affiliation(s)
- Andrew A. Butler
- Department of Metabolism and Aging, The Scripps Research Institute, Jupiter, FL, USA
| | - Robert W. O’Rourke
- Department of Surgery, Oregon Health & Science University, Portland, OR, USA
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Effects of breeds and dietary protein levels on the growth performance, energy expenditure and expression of avUCP mRNA in chickens. Mol Biol Rep 2013; 40:2769-79. [DOI: 10.1007/s11033-012-2030-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Accepted: 10/02/2012] [Indexed: 10/27/2022]
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de Souza BM, Brondani LA, Bouças AP, Sortica DA, Kramer CK, Canani LH, Leitão CB, Crispim D. Associations between UCP1 -3826A/G, UCP2 -866G/A, Ala55Val and Ins/Del, and UCP3 -55C/T polymorphisms and susceptibility to type 2 diabetes mellitus: case-control study and meta-analysis. PLoS One 2013; 8:e54259. [PMID: 23365654 PMCID: PMC3554780 DOI: 10.1371/journal.pone.0054259] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Accepted: 12/10/2012] [Indexed: 12/30/2022] Open
Abstract
Background Some studies have reported associations between five uncoupling protein (UCP) 1–3 polymorphisms and type 2 diabetes mellitus (T2DM). However, other studies have failed to confirm the associations. This paper describes a case-control study and a meta-analysis conducted to attempt to determine whether the following polymorphisms are associated with T2DM: -3826A/G (UCP1); -866G/A, Ala55Val and Ins/Del (UCP2) and -55C/T (UCP3). Methods The case-control study enrolled 981 T2DM patients and 534 nondiabetic subjects, all of European ancestry. A literature search was run to identify all studies that investigated associations between UCP1–3 polymorphisms and T2DM. Pooled odds ratios (OR) were calculated for allele contrast, additive, recessive, dominant and co-dominant inheritance models. Sensitivity analyses were performed after stratification by ethnicity. Results In the case-control study the frequencies of the UCP polymorphisms did not differ significantly between T2DM and nondiabetic groups (P>0.05). Twenty-three studies were eligible for the meta-analysis. Meta-analysis results showed that the Ala55Val polymorphism was associated with T2DM under a dominant model (OR = 1.27, 95% CI 1.03–1.57); while the -55C/T polymorphism was associated with this disease in almost all genetic models: allele contrast (OR = 1.17, 95% CI 1.02–1.34), additive (OR = 1.32, 95% CI 1.01–1.72) and dominant (OR = 1.18, 95% CI 1.02–1.37). However, after stratification by ethnicity, the UCP2 55Val and UCP3 -55C/T alleles remained associated with T2DM only in Asians (OR = 1.25, 95% CI 1.02–1.51 and OR = 1.22, 95% CI 1.04–1.44, respectively; allele contrast model). No significant association of the -3826A/G, -866G/A and Ins/Del polymorphisms with T2DM was observed. Conclusions In our case-control study of people with European ancestry we were not able to demonstrate any association between the UCP polymorphisms and T2DM; however, our meta-analysis detected a significant association between the UCP2 Ala55Val and UCP3 -55C/T polymorphisms and increased susceptibility for T2DM in Asians.
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Affiliation(s)
- Bianca M. de Souza
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Postgraduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul. Porto Alegre, Rio Grande do Sul, Brazil
| | - Letícia A. Brondani
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Postgraduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul. Porto Alegre, Rio Grande do Sul, Brazil
| | - Ana P. Bouças
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Postgraduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul. Porto Alegre, Rio Grande do Sul, Brazil
| | - Denise A. Sortica
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Postgraduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul. Porto Alegre, Rio Grande do Sul, Brazil
| | - Caroline K. Kramer
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Luís H. Canani
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Postgraduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul. Porto Alegre, Rio Grande do Sul, Brazil
| | - Cristiane B. Leitão
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Postgraduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul. Porto Alegre, Rio Grande do Sul, Brazil
| | - Daisy Crispim
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Postgraduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul. Porto Alegre, Rio Grande do Sul, Brazil
- * E-mail:
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Wang W, Liou TH, Lee WJ, Hsu CT, Lee MF, Chen HH. ESR1 gene and insulin resistance remission are associated with serum uric acid decline for severely obese patients undergoing bariatric surgery. Surg Obes Relat Dis 2012; 10:14-22. [PMID: 23273711 DOI: 10.1016/j.soard.2012.10.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 10/19/2012] [Accepted: 10/20/2012] [Indexed: 02/05/2023]
Abstract
BACKGROUND Hyperuricemia is associated with obesity. Few studies have reported the effects of different types of bariatric surgery on uric acid metabolism. The aim of our study was to determine the relationships between serum uric acid reduction and estrogen receptor-α (ESR1) gene polymorphism, as well as the type of bariatric surgery received. The potential physiological pathways involved in postsurgery serum uric acid reduction were also discussed. METHODS A total of 508 severely obese Han Chinese patients, aged 20 to 50 years, with a body mass index (BMI)≥35 kg/m(2) were selected. Patients received either laparoscopic adjustable gastric banding (LAGB; n = 164) or laparoscopic mini-gastric bypass (LMGB; n = 344). A 12-month follow-up was performed to explore the effects of the type of bariatric surgery and ESR1 polymorphism on serum uric acid reduction. RESULTS The rs712221 polymorphism of ESR1 affects serum uric acid reduction after bariatric surgery. The LMGB group exhibited a greater reduction in serum uric acid level compared with the LAGB counterpart after adjusting for sex, age, and metabolic confounders (-2.3 ± 2.1 mg/dL versus-1.2 ± 1.1 mg/dL; P = .002). Patients with the rs712221 genotype exhibited better glycemic control and a greater serum uric acid reduction at 12 months after surgery. The effects of the rs712221 polymorphism in LMGB patients resulted in the greatest serum uric acid reduction (-2.7 ± 1.4 mg/dL). CONCLUSIONS For severely obese Han Chinese patients, bariatric surgery appears to reduce serum uric acid levels, potentially mediated by synergic effects of surgery type, BMI reduction, rs712221 locus, insulin sensitivity, and changed dietary factors via an unknown mechanism.
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Affiliation(s)
- Weu Wang
- Comprehensive Weight Management Center, Taipei Medical University Hospital, Taipei, Taiwan (ROC); Department of Surgery, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan (ROC)
| | - Tsan-Hon Liou
- Obesity Research Center, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan (ROC); Graduate Institute of Injury Prevention, Taipei Medical University, Taipei, Taiwan (ROC)
| | - Wei-Jei Lee
- Department of Surgery, Min-Sheng General Hospital, Taoyuan, Taiwan (ROC)
| | - Chung-Tan Hsu
- Department of Nursing, En Hua Hospital, New Taipei, Taiwan (ROC)
| | - Ming-Fen Lee
- Department of Nutrition and Health Sciences, Chang Jung Christian University, Tainan, Taiwan (ROC)
| | - Hsin-Hung Chen
- Department of Nutrition and Health Sciences, Chang Jung Christian University, Tainan, Taiwan (ROC); Department of Medical Nutrition Therapy, Pan-Chiao Cathay Hospital, New Taipei, Taiwan (ROC).
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Mutombo PB, Yamasaki M, Shiwaku K. UCP2 I/D modulated change in BMI during a lifestyle modification intervention study in Japanese subjects. Genet Test Mol Biomarkers 2012; 17:16-20. [PMID: 23101559 DOI: 10.1089/gtmb.2012.0229] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
AIM Polymorphisms in uncoupling protein (UCP) genes have been strongly associated with energy expenditure and obesity. This study aimed at investigating the effects of UCP gene polymorphisms (UCP1 -3826A/G, UCP2A/V, UCP2 I/D, and UCP3 -55C/T) on change in body mass index (BMI) during a lifestyle modification program in Japanese subjects. RESULTS Intervention induced a significant decrease in energy intake (-8.6% ± 17.0%) and a significant increase in energy expenditure (7.7% ± 7.4%). As a result, participants experienced a significant decrease in their BMI of -1.8% ± 2.7%. In a multivariate regression analysis, only UCP2 D/I among the selected UCP gene polymorphisms was associated with a change in BMI independent of the effects of gender, age, baseline BMI, changes in energy intake, and expenditure. Further regression analysis revealed that, in contrast to the DD genotype group, the DI+II genotype group showed no significant association between weight loss and change in energy expenditure suggesting this polymorphism altered the effects of this parameter on change in BMI. CONCLUSION The study found UCP2 D/I to be associated with change in BMI by altering the effect of change in energy expenditure on change in BMI.
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Affiliation(s)
- P B Mutombo
- Department of Environmental & Preventive Medicine, Faculty of Medicine, Shimane University School of Medicine, Izumo, Japan
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de Luis DA, Aller R, Conde R, Izaola O, Pacheco D, Sagrado MG, Primo D. Effects of RS9939609 gene variant in FTO gene on weight loss and cardiovascular risk factors after biliopancreatic diversion surgery. J Gastrointest Surg 2012; 16:1194-8. [PMID: 22311283 DOI: 10.1007/s11605-012-1829-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Accepted: 01/19/2012] [Indexed: 01/31/2023]
Abstract
BACKGROUND The high variation in responses to bariatric surgery might be partially explained by genetic effects. Recently, common polymorphisms of the fat mass and obesity-associated gene (FTO) have been linked to obesity in some populations. Only two studies have investigated the effect of FTO variants on weight loss of morbid obese patients undergoing bariatric surgery with contradictory results. OBJECTIVE We decided to investigate the role of the rs9939609 FTO gene polymorphism on outcomes after a biliopancreatic diversion surgery (BPD) in morbidly obese patients. DESIGN A sample of 119 morbidly obese patients' body mass index (BMI) > 40 kg/m(2) were operated. Weight, fat mass, blood pressure, basal glucose, triacylglycerols, total cholesterol, low density lipoprotein cholesterol and high density lipoprotein cholesterol were measured at basal visit and at each visit (basal, 3, 9 and 12 months). The frequency of metabolic comorbidities was recorded at each visit. RESULTS Thirty-seven patients (31.1%) had genotype TT (wild type group), 58 (48.7%) patients had genotype TA and 24 patients (20.2%) had genotype AA. In the wild and mutant type groups, BMI, weight, waist circumference, systolic blood pressure and diastolic blood pressure decreased in a significant way. In the wild type groups, glucose, total cholesterol, low density lipoprotein (LDL) cholesterol and triacylglycerol concentrations decreased at 3, 9 and 12 months after surgery. In the mutant type groups, glucose, total cholesterol and triacylglycerol concentrations decreased at 3, 9 and 12 months after surgery. LDL cholesterol decreased at 9 and 12 months after surgery. Initial weight percent loss at 3 months of follow-up was higher in the wild type group (26.1% vs. 18.6%: p < 0.05). The initial weight percent loss at 9 or 12 months was similar in both genotypes. CONCLUSION Our study showed a higher initial weight loss at 3 months after the TT variant of FTO gene (rs9939609). However, the weight loss at 9 and 12 months of BPD was similar in both genotypes with a significant improvement in biochemical parameters and cardiovascular comorbidities.
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Affiliation(s)
- Daniel Antonio de Luis
- Institute of Endocrinology and Nutrition, Medicine School and Unit of Investigation. Hospital Rio Hortega, University of Valladolid, Valladolid, Spain.
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Papazoglou D, Papathanasiou P, Papanas N, Papatheodorou K, Chatziangeli E, Nikitidis I, Kotsiou S, Maltezos E. Uncoupling protein-2 45-base pair insertion/deletion polymorphism: is there an association with severe obesity and weight loss in morbidly obese subjects? Metab Syndr Relat Disord 2012; 10:307-11. [PMID: 22568573 DOI: 10.1089/met.2012.0003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Uncoupling proteins are attractive candidate genes for obesity and type 2 diabetes mellitus. Our aim was to investigate the potential association of the uncoupling protein-2 (UCP2) 45-bp insertion/deletion (ins/del) polymorphism with obesity, as well as the potential effect of this polymorphism on weight loss variability in severely obese subjects. METHODS A total of 158 severely obese subjects (94 without and 64 with metabolic syndrome) and 91 age and sex-matched lean controls were recruited. A subgroup of 124 obese patients participated in a 3-month weight loss program. Anthropometric and metabolic variables were measured. Participants were genotyped for the UCP2 ins/del polymorphism. RESULTS Allelic frequency differed neither between obese subjects and controls (P=0.56), nor between obese subjects with versus without metabolic syndrome (P=0.58). At 3 months, metabolically healthy subjects carrying the insertion allele had significantly greater reduction in body mass index (P=0.029) and fat-free mass (P=0.013) and a borderline significant improvement in the homeostatic model assessment index (P=0.048). CONCLUSION There is no association of the UCP2 ins/del polymorphism with morbid obesity in our population, but this genotype appears to be linked with a favorable response to dietary changes in metabolically healthy obese subjects.
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Affiliation(s)
- Dimitrios Papazoglou
- Outpatient Clinic of Obesity, Diabetes, and Metabolism in the Second Department of Internal Medicine, Medical School, Democritus University of Thrace, Alexandroupolis, Greece.
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Liou TH, Chen HH, Wang W, Wu SF, Lee YC, Yang WS, Lee WJ. ESR1, FTO, and UCP2 genes interact with bariatric surgery affecting weight loss and glycemic control in severely obese patients. Obes Surg 2012; 21:1758-65. [PMID: 21720911 DOI: 10.1007/s11695-011-0457-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Significant variability in weight loss and glycemic control has been observed in obese patients receiving bariatric surgery. Genetic factors may play a role in the different outcomes. METHODS Five hundred and twenty severely obese patients with body mass index (BMI) ≥35 were recruited. Among them, 149 and 371 subjects received laparoscopic adjustable gastric banding (LAGB) and laparoscopic mini-gastric bypass (LMGB), respectively. All individuals were genotyped for five obesity-related single nucleotide polymorphisms on ESR1, FTO, PPARγ, and UCP2 genes to explore how these genes affect weight loss and glycemic control after bariatric surgery at the 6th month. RESULTS Obese patients with risk genotypes on rs660339-UCP2 had greater decrease in BMI after LAGB compared to patients with non-risk genotypes (-7.5 vs. -6 U, p = 0.02). In contrast, after LMGB, obese patients with risk genotypes on either rs712221-ESR1 or rs9939609-FTO had significant decreases in BMI (risk vs. non-risk genotype, -12.5 vs. -10.0 U on rs712221, p = 0.02 and -12.1 vs. -10.6 U on rs9939609, p = 0.04) and a significant amelioration in HbA1c levels (p = 0.038 for rs712221 and p < 0.0001 for rs9939609). The synergic effect of ESR1 and FTO genes on HbA1c amelioration was greater (-1.54%, p for trend <0.001) than any of these genes alone in obese patients receiving LMGB. CONCLUSIONS The genetic variants in the ESR, FTO, and UCP2 genes may be considered as a screening tool prior to bariatric surgery to help clinicians predict weight loss or glycemic control outcomes for severely obese patients.
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Affiliation(s)
- Tsan-Hon Liou
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
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Rose G, Crocco P, De Rango F, Montesanto A, Passarino G. Further support to the uncoupling-to-survive theory: the genetic variation of human UCP genes is associated with longevity. PLoS One 2011; 6:e29650. [PMID: 22216339 PMCID: PMC3246500 DOI: 10.1371/journal.pone.0029650] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Accepted: 12/02/2011] [Indexed: 12/26/2022] Open
Abstract
In humans Uncoupling Proteins (UCPs) are a group of five mitochondrial inner membrane transporters with variable tissue expression, which seem to function as regulators of energy homeostasis and antioxidants. In particular, these proteins uncouple respiration from ATP production, allowing stored energy to be released as heat. Data from experimental models have previously suggested that UCPs may play an important role on aging rate and lifespan. We analyzed the genetic variability of human UCPs in cohorts of subjects ranging between 64 and 105 years of age (for a total of 598 subjects), to determine whether specific UCP variability affects human longevity. Indeed, we found that the genetic variability of UCP2, UCP3 and UCP4 do affect the individual's chances of surviving up to a very old age. This confirms the importance of energy storage, energy use and modulation of ROS production in the aging process. In addition, given the different localization of these UCPs (UCP2 is expressed in various tissues including brain, hearth and adipose tissue, while UCP3 is expressed in muscles and Brown Adipose Tissue and UCP4 is expressed in neuronal cells), our results may suggest that the uncoupling process plays an important role in modulating aging especially in muscular and nervous tissues, which are indeed very responsive to metabolic alterations and are very important in estimating health status and survival in the elderly.
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Affiliation(s)
- Giuseppina Rose
- Department of Cell Biology, University of Calabria, Rende, Italy
| | - Paolina Crocco
- Department of Cell Biology, University of Calabria, Rende, Italy
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Still CD, Wood GC, Chu X, Erdman R, Manney CH, Benotti PN, Petrick AT, Strodel WE, Mirshahi UL, Mirshahi T, Carey DJ, Gerhard GS. High allelic burden of four obesity SNPs is associated with poorer weight loss outcomes following gastric bypass surgery. Obesity (Silver Spring) 2011; 19:1676-83. [PMID: 21311511 DOI: 10.1038/oby.2011.3] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Genome-wide association and linkage studies have identified multiple susceptibility loci for obesity. We hypothesized that such loci may affect weight loss outcomes following dietary or surgical weight loss interventions. A total of 1,001 white individuals with extreme obesity (BMI >35 kg/m(2)) who underwent a preoperative diet/behavioral weight loss intervention and Roux-en-Y gastric bypass surgery were genotyped for single-nucleotide polymorphisms (SNPs) in or near the fat mass and obesity-associated (FTO), insulin induced gene 2 (INSIG2), melanocortin 4 receptor (MC4R), and proprotein convertase subtilisin/kexin type 1 (PCSK1) obesity genes. Association analysis was performed using recessive and additive models with pre- and postoperative weight loss data. An increasing number of obesity SNP alleles or homozygous SNP genotypes was associated with increased BMI (P < 0.0006) and excess body weight (P < 0.0004). No association between the amounts of weight lost from a short-term dietary intervention and any individual obesity SNP or cumulative number of obesity SNP alleles or homozygous SNP genotypes was observed. Linear mixed regression analysis revealed significant differences in postoperative weight loss trajectories across groups with low, intermediate, and high numbers of obesity SNP alleles or numbers of homozygous SNP genotypes (P < 0.0001). Initial BMI interacted with genotype to influence weight loss with initial BMI <50 kg/m(2), with evidence of a dosage effect, which was not present in individuals with initial BMI ≥50 kg/m(2). Differences in metabolic rate, binge eating behavior, and other clinical parameters were not associated with genotype. These data suggest that response to a surgical weight loss intervention is influenced by genetic susceptibility and BMI.
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Affiliation(s)
- Christopher D Still
- Geisinger Obesity Research Institute, Geisinger Clinic, Danville, Pennsylvania, USA
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Deram S, Villares SMF. Genetic variants influencing effectiveness of weight loss strategies. ACTA ACUST UNITED AC 2010; 53:129-38. [PMID: 19466204 DOI: 10.1590/s0004-27302009000200003] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2009] [Accepted: 02/15/2009] [Indexed: 11/22/2022]
Abstract
Body weight excess has an increasingly high prevalence in the world. Obesity is a complex disease of multifactorial origin with a polygenic condition affected by environmental factors. Weight loss is a primary strategy to treat obesity and its morbidities. Weight changes through life depend on the interaction of environmental, behavioral and genetic factors. Interindividual variation of weight loss in response to different types of interventions (behavioral, caloric restriction, exercise, drug or surgery) has been observed. In this article, currently available data on the role of candidate gene polymorphisms in weight loss are reviewed. Even though control of weight loss by genotype was described in twin and family studies, it is premature to recommend use of genotyping in the design of therapeutic diets or drug treatment. Future studies will have to be large in order to assess the effects of multiple polymorphisms, and will have to control factors other than diet.
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Affiliation(s)
- Sophie Deram
- Laboratório de Nutrição Humana e Doenças Metabólicas, Faculdade de Medicina, Universidade de São Paulo, Av. Dr. Arnaldo 455, São Paulo, SP, Brazil.
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Heidema AG, Wang P, van Rossum CTM, Feskens EJM, Boer JMA, Bouwman FG, Van't Veer P, Mariman ECM. Sex-specific effects of CNTF, IL6 and UCP2 polymorphisms on weight gain. Physiol Behav 2010; 99:1-7. [PMID: 19833146 DOI: 10.1016/j.physbeh.2009.10.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2009] [Revised: 09/13/2009] [Accepted: 10/02/2009] [Indexed: 12/13/2022]
Abstract
The human proteins ciliary neurotrophic factor (CNTF) and interleukin-6 (IL6) and their receptors share structural homology with leptin and its receptor. In addition, uncoupling protein-2 (UCP2) has been shown to participate the regulation of leptin on food intake. All three proteins are active in the hypothalamus. Experiments have shown that CNTF and IL6, like leptin, can influence body weight in humans and animals, while the effect of UCP2 is not consistent. In a Dutch general population (n=545) we investigated associations of CNTF (null G/A, rs1800169), IL6 (174 G/C, rs1800795) and UCP2 (A55V, rs660339 and del/ins) polymorphisms with weight gain using interaction graphs and logistic regression analysis. The average follow-up period was 6.9 years. Individuals who gained weight (n=264) were compared with individuals who remained stable in weight (n=281). In women the CNTF polymorphism (odds ratio (OR)=2.15, 95%CI: 1.27-3.64, p=0.004) and in men the IL6 polymorphism by itself (OR=2.26, 95%CI: 1.08-4.75, p=0.03) or in combination with the CNTF polymorphism, were associated with weight gain. Furthermore, CNTF and IL6 polymorphisms in interaction with UCP2 polymorphisms had similar strong effects on weight gain in women and men, respectively. All observed effects were statistically shown to be independent of serum leptin level. These results are incorporated in a biological model for weight regulation with upstream effects of CNTF and IL6, and downstream effects of UCP2. The results of this study suggest a novel mechanism for weight regulation that is active in both women and men, but strongly influenced by sex.
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Affiliation(s)
- A Geert Heidema
- Department of Human Biology, Maastricht University, PO Box 616 6200 MD Maastricht, The Netherlands.
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38
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Jia JJ, Zhang X, Ge CR, Jois M. The polymorphisms of UCP2 and UCP3 genes associated with fat metabolism, obesity and diabetes. Obes Rev 2009; 10:519-26. [PMID: 19413708 DOI: 10.1111/j.1467-789x.2009.00569.x] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Uncoupling proteins (UCPs) belong to the family of mitochondrial transporter proteins that may uncouple the transport of protons across the inner mitochondrial membrane from electron transport and the synthesis of ATP from ADP, hence generating heat rather than energy. In mammals, more than five family members have been identified, including UCP1, UCP2, UCP3, UCP4 (or BMCP1/UCP5) and UCP5. The UCPs may play an important role in energy homeostasis and have become prominent in the fields of thermogenesis, obesity, diabetes and free-radical biology and have been considered candidate genes for obesity and insulin resistance. They have been as important potential targets for treatment of aging, degenerative diseases, diabetes and obesity. Recently, a series of studies showed the polymorphisms of UCPs gene association with the fat metabolism, obesity and diabetes. This review summarizes data supporting the roles of UCP2 and UCP3 in energy dissipation, as well as the genetic variety association with fat metabolism, obesity and diabetes in humans.
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Affiliation(s)
- J-J Jia
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed, Yunnan Agricultural University, Kunming, Yunnan Province, China
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39
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Implications of gene-behavior interactions: prevention and intervention for obesity. OBESITY (SILVER SPRING, MD.) 2008. [PMID: 19037218 DOI: 10.1038/oby.2008.522.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A vast body of research exists to demonstrate that obesity is a complex disorder with a strong genetic basis and a multifactorial etiology. Yet despite the overwhelming evidence that genes play an important role in the development of obesity, many people argue that the increasing prevalence of obesity is simply due to an abundance of palatable food and a dearth of opportunities for physical exercise. While activity and eating behaviors contribute substantially to the development of obesity, considering these to be the only etiologic factors is directly contradictory to what is now known about how eating and energy balance are regulated. Our understanding of the molecular processes controlling eating behavior, in particular, has accelerated exponentially in the last 10 years, and this is one area in which obesity genetics has made great progress. Our challenge is to understand more fully how genetic variation may interact with behavioral factors to influence the regulation of body weight and adiposity. Although exercise and diet strategies are used routinely for obesity treatment, there is a huge variability in how individuals respond to these interventions. There is also a substantial amount of evidence that such responses may also be regulated by genes. Understanding gene-response relationships is the key to developing more efficacious intervention and prevention programs for obesity.
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Abstract
A vast body of research exists to demonstrate that obesity is a complex disorder with a strong genetic basis and a multifactorial etiology. Yet despite the overwhelming evidence that genes play an important role in the development of obesity, many people argue that the increasing prevalence of obesity is simply due to an abundance of palatable food and a dearth of opportunities for physical exercise. While activity and eating behaviors contribute substantially to the development of obesity, considering these to be the only etiologic factors is directly contradictory to what is now known about how eating and energy balance are regulated. Our understanding of the molecular processes controlling eating behavior, in particular, has accelerated exponentially in the last 10 years, and this is one area in which obesity genetics has made great progress. Our challenge is to understand more fully how genetic variation may interact with behavioral factors to influence the regulation of body weight and adiposity. Although exercise and diet strategies are used routinely for obesity treatment, there is a huge variability in how individuals respond to these interventions. There is also a substantial amount of evidence that such responses may also be regulated by genes. Understanding gene-response relationships is the key to developing more efficacious intervention and prevention programs for obesity.
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Affiliation(s)
- Molly S Bray
- Department of Pediatrics, USDA/ARS Children's Nutrition Research Center and Baylor College of Medicine, Houston, Texas, USA.
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41
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Bibliography. Current world literature. Obesity and nutrition. Curr Opin Endocrinol Diabetes Obes 2008; 15:470-5. [PMID: 18769222 DOI: 10.1097/med.0b013e328311f3cb] [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: 11/26/2022]
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Kosuge K, Soma M, Nakayama T, Aoi N, Sato M, Haketa A, Uwabo J, Izumi Y, Matsumoto K. Human uncoupling protein 2 and 3 genes are associated with obesity in Japanese. Endocrine 2008; 34:87-95. [PMID: 18956255 DOI: 10.1007/s12020-008-9111-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2008] [Revised: 08/18/2008] [Accepted: 08/29/2008] [Indexed: 10/21/2022]
Abstract
Human uncoupling proteins (UCPs) are mitochondrial proteins that are involved in the control of energy metabolism and the pathophysiology of obesity. Although there have been several reports on the association between the UCP2/UCP3 locus and the obesity, there have been no haplotype-based case-control studies with gender-specific analysis. The aim of this study was to examine whether there is an association between the UCP2/UCP3 locus and the obesity in the Japanese population when using a single nucleotide polymorphism (SNP)-based and haplotype-based case-control study with gender-specific analysis. We examined a group consisting of 551 subjects, of which 369 were non-obese and 182 were overweight and/or obese. We selected one nonsynonymous SNP (rs660339: Ala55Val) as a genetic marker. Genotyping for all subjects was performed by the TaqMan polymerase chain reaction (PCR) method. Although the overall distributions of genotype and allele were not significantly different between the non-obese and the obese groups, the overall distributions of the genotype were significantly different in men (P = 0.030). In the obese group, male subjects with the Val allele were significantly more frequent in both association studies. There was a significant difference in the overall distribution of the haplotype (UCP3 rs180049, UCP3 rs2075577, UCP2 rs660339) between the weight groups (P = 0.010), and in women, there was a significant difference (P = 0.042) in the overall distribution of the haplotype (UCP3 rs2075577, UCP2 rs660339). Nonsynonymous rs660339 in the human UCP2 gene in men, and the haplotype (UCP3 rs2075577-UCP2 rs660339) in women might be good obesity markers.
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Affiliation(s)
- Kotoko Kosuge
- Division of Nephrology and Endocrinology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
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Lee WJ, Wang W, Lee YC, Huang MT, Ser KH, Chen JC. Laparoscopic Mini-gastric Bypass: Experience with Tailored Bypass Limb According to Body Weight. Obes Surg 2008; 18:294-9. [DOI: 10.1007/s11695-007-9367-9] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2007] [Accepted: 11/08/2007] [Indexed: 02/04/2023]
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