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The Association between Serum Resistin Level, Resistin (-420C/G) Single Nucleotide Variant, and Markers of Endothelial Dysfunction, including Salt Taste Preference in Hypertensive Patients. Nutrients 2022; 14:nu14091789. [PMID: 35565757 PMCID: PMC9102533 DOI: 10.3390/nu14091789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 04/22/2022] [Indexed: 11/17/2022] Open
Abstract
Background: Resistin action links to conditions such as diabetes, obesity, but its role in hypertension is less well understood. This study aimed to estimate the relationship between resistin (−420G/C) single nucleotide variant (SNV) and markers associated with endothelial dysfunction in hypertension. Methods: The study enrolled 162 hypertensive patients (HT) and 165 non-hypertensive (NHT) patients. Resistin serum concentration was estimated with immuoenzymatic assay. Anthropometric measurements, blood pressure and arterial stiffness index (SI), uric acid (UA) serum concentration, and salty taste preference of normal (NS) or high (HS) were assessed in the study. Genotyping was achieved by polymerase chain reaction-restriction fragment length polymorphism. Results: Resistin concentration and SI do not differ significantly between HT and NHT individuals; UA significantly increased in HT subjects. Resistin, UA, and SI did not differ among particular resistin genotypes in HT, NHT, NS, or HS groups. GG and CG genotypes were more frequent (OR 1.57 (95% CI; 1.01–2.43); p = 0.04) in hypertensive individuals than the NHT group, but less frequent (OR 0.58 (95% CI; 0.37–0.91); p = 0.01) in HS patients compared to NS individuals. Concerning HT patients with different salt preferences, GG + CG genotypes were less frequent (OR 0.50 (95% CI; 0.26–0.97); p = 0.04) in the HS group than in NS individuals. HT carriers of GG and CG genotype have significantly increased UA concentrations compared to the respective NHT subjects. HS individuals carrying GG and CG genotypes have higher SI values than the NS group. Allele G of SNV (−420G/C) adjusted for age, BMI, serum resistin, UA concentration, salt taste preference, SI, and HR values increased the risk of developing hypertensive phenotype 1.8 fold. Conclusions: Resistin SNV (−420G/C) is related to several markers associated with endothelial dysfunction, including salt taste preference in hypertensive patients.
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Al-Homedi Z, Afify N, Memon M, Alsafar H, Tay G, Jelinek HF, Mousa M, Abu-Samra N, Osman W. Genetic Studies of Metabolic Syndrome in Arab Populations: A Systematic Review and Meta-Analysis. Front Genet 2021; 12:733746. [PMID: 34868209 PMCID: PMC8637276 DOI: 10.3389/fgene.2021.733746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 10/20/2021] [Indexed: 12/25/2022] Open
Abstract
Background: The metabolic syndrome (MetS) is prevalent in Arabian populations. Several small-scale studies have been performed to investigate the genetic basis of MetS. This systematic review and meta-analysis aimed to examine whether candidate gene polymorphisms are associated with MetS susceptibility among ethnic groups of the Arabian world and to suggest possible directions for future research regarding genetic markers and MetS. Methods: A search was conducted for peer-reviewed articles that examined the genetic association of MetS in Arabian populations in the following databases: Medline, Embase, Scopus, Direct Science, Web of Science, ProQuest, and Google Scholar until March 31, 2021. Articles were eligible if they were case-control studies, which investigated MetS as a dichotomous outcome (MetS vs no MetS). To assess the quality of the studies, the Q-Genie tool (Quality of Genetic Association Studies) was used. A non-central chi2 (random-effect) distribution was used to determine the heterogeneity (H) of Q and I (Galassi et al., The American journal of medicine, 2006, 119, 812–819) statistics. Results: Our search strategy identified 36 studies that met our inclusion criteria. In most cases, studies were excluded due to a lack of statistical information such as odds ratios, confidence intervals, and p-values. According to the Q-Genie tool, 12 studies scored poorly (a score of≤35), 13 studies scored moderately ( >35 and≤45), and 12 studies had good quality ( >45 or higher). The most frequently studied genes were FTO and VDR (both included in four studies). Three SNPs indicated increased risk for MetS after calculating the pooled odds ratios: FTO-rs9939609 (odds ratio 1.49, 95% CI: 0.96–2.32); LEP-rs7799039 (odds ratio 1.85, 95% CI: 1.37–2.5); and SERPINA12-rs2236242 (odds ratio 1.65, 95% CI: 1.21–2.24). Meta-analysis studies showed no significant heterogeneity. Conclusion: There were many sources of heterogeneity in the study settings. Most of the studies had low to moderate quality because of sample size and power issues, not considering all potential sources of bias, and not providing details about genotyping methods and results. As most studies were small-scale, aimed to replicate findings from other populations, we did not find any unique genetic association between MetS and Arabian populations.
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Affiliation(s)
- Zahrah Al-Homedi
- College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Nariman Afify
- College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Mashal Memon
- College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Habiba Alsafar
- Center for Biotechnology, Khalifa University, Abu Dhabi, United Arab Emirates.,Department of Genetics and Molecular Biology, College of Medicine and Health Sciences, Abu Dhabi, United Arab Emirates.,Department of Biomedical Engineering, College of Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Guan Tay
- Department of Psychiatry, UWA Medical School, The University of Western Australia, Nedlands, WA, Australia.,School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Herbert F Jelinek
- Department of Biomedical Engineering, College of Engineering, Khalifa University, Abu Dhabi, United Arab Emirates.,Health Innovation Engineering Center, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Mira Mousa
- Center for Biotechnology, Khalifa University, Abu Dhabi, United Arab Emirates.,Nuffield Department of Women's and Reproduction Health, Oxford University, Oxford, United Kingdom
| | - Nadia Abu-Samra
- Department of Biology, College of Arts and Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Wael Osman
- Center for Biotechnology, Khalifa University, Abu Dhabi, United Arab Emirates.,Department of Biology, College of Arts and Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
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Genetic polymorphisms associated with obesity in the Arab world: a systematic review. Int J Obes (Lond) 2021; 45:1899-1913. [PMID: 34131278 PMCID: PMC8380539 DOI: 10.1038/s41366-021-00867-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 04/27/2021] [Accepted: 05/18/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Obesity, one of the most common chronic health conditions worldwide, is a multifactorial disease caused by complex genetic and environmental interactions. Several association studies have revealed a considerable number of candidate loci for obesity; however, the genotype-phenotype correlations remain unclear. To date, no comprehensive systematic review has been conducted to investigate the genetic risk factors for obesity among Arabs. OBJECTIVES This study aimed to systematically review the genetic polymorphisms that are significantly associated with obesity in Arabs. METHODS We searched four literature databases (PubMed, Science Direct, Scopus, and Google Scholar) from inception until May 2020 to obtain all reported genetic data related to obesity in Arab populations. Quality assessment and data extraction were performed individually by three investigators. RESULTS In total, 59 studies comprising a total of 15,488 cases and 9,760 controls were included in the systematic review. A total of 76 variants located within or near 49 genes were reported to be significantly associated with obesity. Among the 76 variants, two were described as unique to Arabs, as they have not been previously reported in other populations, and 19 were reported to be distinctively associated with obesity in Arabs but not in non-Arab populations. CONCLUSIONS There appears to be a unique genetic and clinical susceptibility profile of obesity in Arab patients.
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Garavito P, Mosquera-Heredia MI, Fang L, Payares F, Ruiz M, Arias I, Tuesca R, Navarro É, Silvera-Redondo C. Polymorphisms of leptin-melanocortin system genes associated with obesity in an adult population from Barranquilla. BIOMEDICA : REVISTA DEL INSTITUTO NACIONAL DE SALUD 2020; 40:257-269. [PMID: 32673455 PMCID: PMC7505507 DOI: 10.7705/biomedica.4827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 08/21/2019] [Indexed: 11/11/2022]
Abstract
Introduction: Obesity is considered a serious public health problem. Efforts have been directed to search for candidate genes such as LEP, LEPR, and MC4R involved in the leptin-melanocortin system. The neuroendocrine regulation of these genes on energy intake and balance influences the pathogenesis of this disease. Contradictory results regarding the association of these genes with obesity raise the need for new research. Objective: To analyze the association between obesity and LEP rs2167270, LEPR rs1137101, and MC4R rs17782313 polymorphisms and the clinical and biochemical variables in obese adults from Barranquilla, Colombia. Materials and methods: We analyzed 111 obese adults and 155 non-obese individuals as controls. The polymorphisms were determined by real-time PCR. Besides, anthropometric measures, blood pressure, and biochemical tests were evaluated. Results: No statistical differences were found in allele and genotype frequencies of gene polymorphisms between groups. The CC genotype of MC4R rs17782313 polymorphism was associated with increased systolic blood pressure and T allele and TT genotype, with decreased HDL cholesterol in obese adults. The effect of the other polymorphisms on these variables was not evidenced. Conclusions: LEP rs2167270, LEPR rs1137101, and MC4R rs17782313 polymorphisms were not associated with obesity in the population under study. MC4R rs17782313 polymorphisms were associated with an increase in systolic blood pressure and a decrease in HDL cholesterol.
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Affiliation(s)
- Pilar Garavito
- Grupo de Investigación Genética y Medicina Molecular, Departamento de Medicina, Universidad del Norte, Barranquilla, Colombia.
| | - María Isabel Mosquera-Heredia
- Grupo de Investigación Genética y Medicina Molecular, Departamento de Medicina, Universidad del Norte, Barranquilla, Colombia.
| | - Luis Fang
- Grupo de Investigación Genética y Medicina Molecular, Departamento de Medicina, Universidad del Norte, Barranquilla, Colombia.
| | - Fausto Payares
- Grupo de Investigación Genética y Medicina Molecular, Departamento de Medicina, Universidad del Norte, Barranquilla, Colombia.
| | - Martha Ruiz
- Grupo de Investigación Genética y Medicina Molecular, Departamento de Medicina, Universidad del Norte, Barranquilla, Colombia.
| | - Isis Arias
- Grupo de Investigación Genética y Medicina Molecular, Departamento de Medicina, Universidad del Norte, Barranquilla, Colombia.
| | - Rafael Tuesca
- Grupo de Investigación Proyecto UNI, Departamento de Salud Pública, Universidad del Norte, Barranquilla, Colombia.
| | - Édgar Navarro
- Grupo de Investigación Proyecto UNI, Departamento de Salud Pública, Universidad del Norte, Barranquilla, Colombia.
| | - Carlos Silvera-Redondo
- Grupo de Investigación Genética y Medicina Molecular, Departamento de Medicina, Universidad del Norte, Barranquilla, Colombia.
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Seoane-Collazo P, Martínez-Sánchez N, Milbank E, Contreras C. Incendiary Leptin. Nutrients 2020; 12:nu12020472. [PMID: 32069871 PMCID: PMC7071158 DOI: 10.3390/nu12020472] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/06/2020] [Accepted: 02/08/2020] [Indexed: 02/08/2023] Open
Abstract
Leptin is a hormone released by adipose tissue that plays a key role in the control of energy homeostasis through its binding to leptin receptors (LepR), mainly expressed in the hypothalamus. Most scientific evidence points to leptin’s satiating effect being due to its dual capacity to promote the expression of anorexigenic neuropeptides and to reduce orexigenic expression in the hypothalamus. However, it has also been demonstrated that leptin can stimulate (i) thermogenesis in brown adipose tissue (BAT) and (ii) the browning of white adipose tissue (WAT). Since the demonstration of the importance of BAT in humans 10 years ago, its study has aroused great interest, mainly in the improvement of obesity-associated metabolic disorders through the induction of thermogenesis. Consequently, several strategies targeting BAT activation (mainly in rodent models) have demonstrated great potential to improve hyperlipidemias, hepatic steatosis, insulin resistance and weight gain, leading to an overall healthier metabolic profile. Here, we review the potential therapeutic ability of leptin to correct obesity and other metabolic disorders, not only through its satiating effect, but by also utilizing its thermogenic properties.
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Affiliation(s)
- Patricia Seoane-Collazo
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
- CIMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, 15782 Santiago de Compostela, Spain;
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 15706 Santiago de Compostela, Spain
- Correspondence: (P.S.-C.); (N.M.-S.); (C.C.); Tel.: +81-298-533-301 (P.S.-C.); +34-913-941-650 (N.M.-S.); +44-01865285890 (C.C.)
| | - Noelia Martínez-Sánchez
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX1 3PT, UK
- Correspondence: (P.S.-C.); (N.M.-S.); (C.C.); Tel.: +81-298-533-301 (P.S.-C.); +34-913-941-650 (N.M.-S.); +44-01865285890 (C.C.)
| | - Edward Milbank
- CIMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, 15782 Santiago de Compostela, Spain;
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 15706 Santiago de Compostela, Spain
| | - Cristina Contreras
- Department of Physiology, Pharmacy School, Complutense University of Madrid, 28040 Madrid, Spain
- Correspondence: (P.S.-C.); (N.M.-S.); (C.C.); Tel.: +81-298-533-301 (P.S.-C.); +34-913-941-650 (N.M.-S.); +44-01865285890 (C.C.)
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Ibrahim SM, Bastawy AA. The Relevance of Single-nucleotide Polymorphism +62 G>A to the Expression of Resistin Gene Affecting Serum Resistin Levels in Metabolic Syndrome in the Egyptian Population. Curr Pharm Biotechnol 2019; 21:626-634. [PMID: 31820685 DOI: 10.2174/1389201021666191210122851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/30/2019] [Accepted: 11/05/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Metabolic Syndrome (MS) is a clinical condition consisting of risk factors associated with type two diabetes and developing cardiovascular disease. It has been suggested that resistin is a linkage between obesity, inflammation and type two diabetes. This study aims to investigate whether Resistin Gene (RETN) polymorphism (+62G>A) is linked to MS and resistin levels among the Egyptian population. METHODS This study was performed with 310 Egyptian volunteers: 160 MS subjects and 150 controls. Anthropometric parameters and biochemical variables were determined. The RETN +62G>A polymorphism was genotyped by PCR-RFLP technique. RESULTS The resistin levels of the MS group were significantly higher than those of the control group. Resistin levels were positively correlated with anthropometric parameters and liver biomarkers in the MS group. According to RETN +62G>A polymorphism, carriers with the A allele (GA/AA) had significantly increased resistin levels than subjects with the GG genotype, consequently, the RETN +62G >A polymorphism was found to be related to MS, biochemical parameters and anthropometric variables. CONCLUSION These findings propose that the RETN +62G>A polymorphism has a great impact on the circulating resistin concentrations, and that resistin levels are strongly related to MS. Therefore, this RETN polymorphism is related to the risk of the prevalence of MS in the Egyptians.
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Affiliation(s)
- Sherine M Ibrahim
- Biochemistry Department, Faculty of Pharmacy, Modern Sciences and Arts University, Postal Code: 202, Cairo, Egypt
| | - Afaf A Bastawy
- Biochemistry Department, Faculty of Pharmacy, Modern Sciences and Arts University, Postal Code: 202, Cairo, Egypt
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Influence of +299G>A and +62G˃A resistin gene promoter variants on cardiovascular risk in Egyptian women with systemic lupus erythematosus. EGYPTIAN RHEUMATOLOGIST 2019. [DOI: 10.1016/j.ejr.2018.11.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Association between Two Resistin Gene Polymorphisms and Metabolic Syndrome in Jilin, Northeast China: A Case-Control Study. DISEASE MARKERS 2018; 2017:1638769. [PMID: 29386698 PMCID: PMC5745751 DOI: 10.1155/2017/1638769] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 10/17/2017] [Accepted: 10/30/2017] [Indexed: 12/12/2022]
Abstract
Metabolic syndrome (MetS) is a significant health care problem worldwide and is characterized by increased fasting glucose and obesity. Resistin is a protein hormone produced both by adipocytes and immunocompetent cells, including those residing in adipose tissue, and is believed to modulate glucose tolerance and insulin action. This study examined the association of resistin gene polymorphisms, rs1862513 and rs3745368, and related haplotypes with the development of metabolic syndrome in a Han Chinese population. This case-control study was performed on 3792 subjects, including 1771 MetS cases and 2021 healthy controls from the Jilin province of China. Metabolic syndrome was defined according to the criteria of the International Diabetes Federation (IDF). Logistic regression analysis was used to estimate the relationship between gene polymorphism and MetS. Our results showed that there were no significant associations between MetS and the genotype distributions in four kinds of inheritance models, allele frequencies, and related haplotypes of resistin gene polymorphisms rs1862513 and rs3745368 (all p values > 0.05). Based on our study findings, we concluded that mutations in resistin genes are not associated with the presence of MetS in a Han Chinese population from Jilin province in China.
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Zayani N, Hamdouni H, Boumaiza I, Achour O, Neffati F, Omezzine A, Najjar MF, Bouslama A. Resistin polymorphims, plasma resistin levels and obesity in Tunisian volunteers. J Clin Lab Anal 2017; 32. [PMID: 28393393 DOI: 10.1002/jcla.22227] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 03/07/2017] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Adipose tissue is an important endocrine organ that secretes a number of adipokines, like Resistin (RETN); it's an adipocytes-secreted cytokine and has been proposed as a link between obesity and diabetes. Many resistin gene polymorphisms were described and their implication in obesity was controversial. This study was to investigate the prevalence of single nucleotide polymorphisms (SNPs) in RETN gene 420C/G; 44G/A; 62G/A; 394C/G and 299 G/A and their association with Resistin level and obesity in Tunisian volunteers. METHODS We recruited 169 nonobese (mean age=42.16-14.26 years; mean body mass index [BMI]=24.51-3.69 kg/m2 ) and 160 obese (mean age=47.86-11.17 years; mean BMI=36-4.78 kg/m2 ). Genotyping was performed using polymerase chain reaction-restriction fragment length polymorphism. Anthropometric parameters, lipid levels, Glycemia and insulinemia were measured, BMI was calculated and insulinresistance was evaluated with the homeostasis model assessment insulin resistance (HOMA-IR) and resistin level was measured by ELISA. Statistical analyses were performed by SPSS19.0. RESULTS After adjustment for confounding parameters; the Odds Ratio (OR) of obesity associated with mutated genotypes at 420C/G compared with normal genotype was as: OR=2.17; 95% CI [1.28-3.68], P=.004. The serum Resistin levels present no significant association with all RETN polymorphisms and it was significantly associated with BMI (P=.047). In our haplotype analysis, one haplotype seems to be protective and one other seems to be the highest risk to obesity. CONCLUSION The 420 C/G Polymorphism were associated with obesity and Leptin concentration in our population.
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Affiliation(s)
- Nesrine Zayani
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
| | - Haithem Hamdouni
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
| | - Imen Boumaiza
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
| | - Ons Achour
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
| | - Fadoua Neffati
- Laboratory of Biochemistry and Toxicology, Monastir's University Hospital, Monastir, Tunisia
| | - Asma Omezzine
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
| | - Mohamed Fadhel Najjar
- Laboratory of Biochemistry and Toxicology, Monastir's University Hospital, Monastir, Tunisia
| | - Ali Bouslama
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
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Thammakun T, Laohasiriwong W, Kraiklang R, Saengprajak N. Association of +62 G>A Polymorphism in the Resistin Gene with Type 2 Diabetes Mellitus among Thais: Case-Control Study. J Clin Diagn Res 2017; 11:BC15-BC20. [PMID: 28384852 DOI: 10.7860/jcdr/2017/25072.9390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 12/08/2016] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Resistin gene (RETN) polymorphisms in humans may have a role in the pathogenesis of Type 2 Diabetes Mellitus (T2DM) and insulin resistance. There is still lack of evidence on association between +62 G>A polymorphism in the RETN and T2DM among Thais. AIM To determine the effect of polymorphisms at +62 G>A of RETN on Thai T2DM. MATERIALS AND METHODS This matched case control study was conducted with a total of 360 samples from all regions of Thailand (180 Thai new T2DM cases and 180 non-T2DM Thais for control) were enrolled. The RETN +62G>A polymorphism were detected using the Polymerase Chain Reaction (PCR) method. Conditional logistic regression was performed to test the association between +62 G>A polymorphism and T2DM. RESULTS Among 360 samples that were enrolled, only 350 samples completed molecular analysis. It was found that GA+AA genotype frequencies in T2DM cases was higher than control by 16% (95% CI: 6.0%, 27.0%, p-value=0.002). After adjustments for possible confounders, multivariable analyses by conditional logistic regression showed that the RETN+62 G>A polymorphism was statistically associated with Thai T2DM (ORadjusted =1.84, 95% CI: 1.03, 3.31, p-value=0.04). Other factors such as; low educational attainment (ORadjusted=3.87, 95%CI: 1.60, 9.36), hypertension (ORadjusted=3.07, 95%CI: 1.56, 6.04), had both obese father and mother (ORadjusted=1.94, 95%CI: 1.06, 3.56) and triglyceride≥150 (ORadjusted=2.18, 95% CI: 1.18, 4.02) were statistically associated with Thai T2DM (p-value<0.05). While regular consumption of glutinous rice was found to be a protective factor (ORadjusted=0.29, 95%CI: 0.13, 0.64). CONCLUSION These findings suggest that RETN polymorphism at position +62 G>A may increase the susceptibility to T2DM in Thais.
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Affiliation(s)
- Theerawut Thammakun
- Faculty, Department of Public Health, Khon Kaen University and Research and Training Center for Enhancing Quality of Life of Working Age People, Khon Kaen University , Khon Kaen, Thailand
| | - Wongsa Laohasiriwong
- Associate Professor, Department of Public Health, Khon Kaen University and Board Committee of Research and Training Centre for Enhancing Quality of Life of Working Age People (REQW), Khon Kaen University , Khon Kaen, Thailand
| | - Ratthaphol Kraiklang
- Lecturer, Department of Public Health, Khon Kaen University and Research Group on Prevention and Control of Diabetes in the Northeast , Khon Kaen, Thailand
| | - Nittaya Saengprajak
- Lecturer, Department of Public Health, Kalasin University , Kalasin, Thailand
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Zayani N, Omezzine A, Boumaiza I, Achour O, Rebhi L, Rejeb J, Ben Rejeb N, Ben Abdelaziz A, Bouslama A. Association of ADIPOQ, leptin, LEPR, and resistin polymorphisms with obesity parameters in Hammam Sousse Sahloul Heart Study. J Clin Lab Anal 2017; 31. [PMID: 28195351 DOI: 10.1002/jcla.22148] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 12/26/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Adipose tissue is an important endocrine organ that secretes a number of adipokines, such as adiponectin (ADIPOQ), leptin (LEP), leptin receptor (LEPR), and resistin (RETN) which may be implicated in obesity. Some adipokines' polymorphisms of genes might influence their concentrations and/or activities. Our aim was to study the relationship between seven SNPs in ADIPOQ (+45T<G (rs2241766); +276G<T (rs1501299); -4255C<T (rs822393); -395G<T (rs17366568)), LEP (2548G<A (rs7799039)), LEPR (223Q<R (rs1137101)), and RETN (-420C<G (rs1862513)) and obesity in Hammam Sousse Sahloul Heart Study (HSHS). METHODS The study, carried out between February and June 2009, is mainly focused on 1121 respondents in HSHS which is a population-based epidemiological study of type "community-based" on cardiovascular risk. Genotyping was performed using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Serum lipids and anthropometric parameters were measured. Statistic analysis was performed on SPSSv19. RESULTS The polymorphisms of ADIPOQ 4522C<T and 276G<T, LEP 2548G<A, and RETN 420C<G seem to contribute to obesity. In fact, adjusted odds ratios (ORs) of obesity associated with mutated genotypes of each polymorphism were respectively OR=1.38, P=.037; OR=0.608, P<.001; OR=2.23, P=.034; and OR=2.18, P<.001. The 276G<T, 4522C<T, and 420C<G were associated with increased BMI (P=.010, P=.028, and P<.001). A significant association was found between the 276G<T; 4522C<T, LEP 2548G<A and 420C<G, and the waist circumference and hip measurements. CONCLUSION ADIPOQ, LEP, and RETN gene polymorphisms were associated with obesity parameters in HSHS population.
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Affiliation(s)
- Nesrine Zayani
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
| | - Asma Omezzine
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
| | - Imen Boumaiza
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
| | - Ons Achour
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
| | - Lamia Rebhi
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
| | - Jihen Rejeb
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
| | - Nabila Ben Rejeb
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
| | | | - Ali Bouslama
- Biochemistry Department, Sahloul University Hospital, Sousse, Tunisia
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Nascimento H, Vieira E, Coimbra S, Catarino C, Costa E, Bronze-da-Rocha E, Rocha-Pereira P, Carvalho M, Ferreira Mansilha H, Rêgo C, Dos Santos R, Santos-Silva A, Belo L. Adipokine Gene Single-Nucleotide Polymorphisms in Portuguese Obese Adolescents: Associations with Plasma Concentrations of Adiponectin, Resistin, IL-6, IL-1β, and TNF-α. Child Obes 2016; 12:300-13. [PMID: 27159547 DOI: 10.1089/chi.2015.0235] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BACKGROUND The genetic contribution to obesity and to circulating adipokine levels has not been completely clarified. We aimed to evaluate adipokine genes' single-nucleotide polymorphism (SNP) prevalence and its association with circulating adipokine levels and risk factors for cardiovascular disease in an obese Portuguese pediatric population. METHODS Two hundred forty-eight obese adolescents (mean age 13.4 years old; 47.2% females) participated in a cohort study. We screened 12 SNPs by direct sequencing in five adipokine genes: adiponectin (ADIPOQ: rs16861194, rs17300539, rs266729, rs2241766, rs1501299), interleukin-1β (IL-1β; rs1143627), IL-6 (IL-6; rs1800795), tumor necrosis factor-α (TNF-α; rs1800629), and resistin (RETN; rs1862513, rs3219177, rs3745367, rs3745368). Biochemical analysis included determination of circulating adipokines, C-reactive protein (CRP) levels, lipid profile, and markers of insulin resistance. RESULTS Compared to males, females presented higher circulating levels of insulin, adiponectin, IL-6, resistin, and leptin concentrations, but lower TNF-α levels. No statistically significant differences were found for genotype or allelic distributions between genders. In the whole sample population, adiponectin levels were influenced by ADIPOQ rs17300539 (c.-1138G>A; lower in subjects with GG genotype). When only males were considered, IL-1β, IL-6, and TNF-α levels were associated with ADIPOQ rs1501299 (c.214 + 62G>T; higher in GG subjects). TNF-α concentrations were modulated by TNF-α rs1800629 (c.-488G>A; lower in GG males), RETN rs1862513 (c.-216C>G; higher in CC subjects), and RETN rs3219177 (c.118 + 39C>T; higher in CC subjects). Leptin levels were influenced by IL-1β rs1143627 (c.-118C>T) presenting TT individuals' lower levels. CONCLUSIONS Our data demonstrate that in pediatric obese patients, some adipokine gene SNPs have an association with circulating adipokine levels and lipid profile.
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Affiliation(s)
- Henrique Nascimento
- 1 IBMC-Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto , Porto, Portugal .,2 Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto , Porto, Portugal .,3 UCIBIO\REQUIMTE, Department of Biological Sciences, Laboratory of Biochemistry, Faculty of Pharmacy, University of Porto , Porto, Portugal
| | - Emília Vieira
- 4 Molecular Genetics Unit, Medical Genetics Center Dr. Jacinto de Magalhães , Porto Hospital Centre, Porto, Portugal
| | - Susana Coimbra
- 3 UCIBIO\REQUIMTE, Department of Biological Sciences, Laboratory of Biochemistry, Faculty of Pharmacy, University of Porto , Porto, Portugal .,5 CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS) , Gandra-PRD, Portugal
| | - Cristina Catarino
- 1 IBMC-Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto , Porto, Portugal .,2 Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto , Porto, Portugal .,3 UCIBIO\REQUIMTE, Department of Biological Sciences, Laboratory of Biochemistry, Faculty of Pharmacy, University of Porto , Porto, Portugal
| | - Elísio Costa
- 1 IBMC-Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto , Porto, Portugal .,2 Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto , Porto, Portugal .,3 UCIBIO\REQUIMTE, Department of Biological Sciences, Laboratory of Biochemistry, Faculty of Pharmacy, University of Porto , Porto, Portugal
| | - Elsa Bronze-da-Rocha
- 1 IBMC-Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto , Porto, Portugal .,2 Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto , Porto, Portugal .,3 UCIBIO\REQUIMTE, Department of Biological Sciences, Laboratory of Biochemistry, Faculty of Pharmacy, University of Porto , Porto, Portugal
| | | | - Márcia Carvalho
- 7 FP-ENAS, CEBIMED, Fundação Ensino e Cultura Fernando Pessoa , Porto, Portugal
| | - Helena Ferreira Mansilha
- 8 Childhood and Adolescence Department of CMIN (Centro Materno-Infantil do Norte), Porto Hospital Centre, ICBAS (Instituto de Ciências Biomédicas Abel Salazar), University of Porto , Porto, Portugal
| | - Carla Rêgo
- 9 Children and Adolescent Centre, CUF Hospital, Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto , Porto, Portugal
| | - Rosário Dos Santos
- 4 Molecular Genetics Unit, Medical Genetics Center Dr. Jacinto de Magalhães , Porto Hospital Centre, Porto, Portugal
| | - Alice Santos-Silva
- 1 IBMC-Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto , Porto, Portugal .,2 Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto , Porto, Portugal .,3 UCIBIO\REQUIMTE, Department of Biological Sciences, Laboratory of Biochemistry, Faculty of Pharmacy, University of Porto , Porto, Portugal
| | - Luís Belo
- 1 IBMC-Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto , Porto, Portugal .,2 Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto , Porto, Portugal .,3 UCIBIO\REQUIMTE, Department of Biological Sciences, Laboratory of Biochemistry, Faculty of Pharmacy, University of Porto , Porto, Portugal
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Robberecht H, Hermans N. Biomarkers of Metabolic Syndrome: Biochemical Background and Clinical Significance. Metab Syndr Relat Disord 2016; 14:47-93. [PMID: 26808223 DOI: 10.1089/met.2015.0113] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Biomarkers of the metabolic syndrome are divided into four subgroups. Although dividing them in groups has some limitations, it can be used to draw some conclusions. In a first part, the dyslipidemias and markers of oxidative stress are discussed, while inflammatory markers and cardiometabolic biomarkers are reviewed in a second part. For most of them, the biochemical background and clinical significance are discussed, although here also a well-cut separation cannot always be made. Altered levels cannot always be claimed as the cause, risk, or consequence of the syndrome. Several factors are interrelated to each other and act in a concerted, antagonistic, synergistic, or modulating way. Most important conclusions are summarized at the end of every reviewed subgroup. Genetic biomarkers or influences of various food components on concentration levels are not included in this review article.
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Affiliation(s)
- Harry Robberecht
- Department of Pharmaceutical Sciences, NatuRA (Natural Products and Food Research and Analysis), University of Antwerp , Wilrijk, Antwerp, Belgium
| | - Nina Hermans
- Department of Pharmaceutical Sciences, NatuRA (Natural Products and Food Research and Analysis), University of Antwerp , Wilrijk, Antwerp, Belgium
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Zhang CX, Guo LK, Qin YM, Li GY. Interaction of Polymorphisms of Resistin Gene Promoter -420C/G, Glutathione Peroxidase -1 Gene Pro198Leu and Cigarette Smoking in Nonalcoholic Fatty Liver Disease. Chin Med J (Engl) 2015; 128:2467-73. [PMID: 26365964 PMCID: PMC4725550 DOI: 10.4103/0366-6999.164931] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Many studies have suggested that cigarette smoking and polymorphisms of resistin and glutathione peroxidase-1 (GPx-1) genes are closely correlated with the pathogenesis of nonalcoholic fatty liver disease (NAFLD). However, few reports have investigated these associations with respect to NAFLD susceptibility. We, therefore, examined the distribution of polymorphisms in GPx-1 and resistin genes in NAFLD patients and healthy controls and analyzed the relationship between these polymorphisms and smoking status. METHODS Nine hundred NAFLD patients and 900 healthy controls were selected, and the genetic polymorphisms of resistin gene promoter-420C/G and GPx-1 gene Pro198Leu were analyzed by polymorphism-polymerase chain reaction (PCR) in DNA extracted from peripheral blood leukocytes. Interactions between the two mutants and the gene-environment interaction with cigarette smoking were also analyzed. RESULTS Genotype frequencies of -420C/G (GG) and Pro198Leu (LL) were significantly higher in NAFLD cases (49.56% and 50.11%, respectively) compared with healthy controls (23.67% and 24.22%, respectively) (P = 0.0069; P = 0.0072). Moreover, the risk of NAFLD with -420C/G (GG) was significantly higher than in controls (odds ratio [OR] =3.1685, 95% confidence interval (CI) =1.9366-5.2073). Individuals carrying Pro198Leu (LL) had a high risk of NAFLD (OR = 3.1424, 95% CI = 1.7951-5.2367). Combined analysis of the polymorphisms showed that the -420C/G (GG)/Pro198Leu (LL) genotype was significantly more common in the NAFLD group than in the control group (39.44% vs. 12.78%, respectively, P = 0.0054), while individuals with -420C/G (GG)/Pro198Leu (LL) had a high risk of NAFLD (OR = 5.0357, 95% CI = 3.1852-7.8106). Moreover, the cigarette smoking rate in the NAFLD group was significantly higher than in the control group (OR = 1.8990, P = 0.0083 in the smoking index (SI) ≤400 subgroup; OR = 5.0937, P = 0.0051 in the SI >400 subgroup), and statistical analysis suggested a positive interaction between cigarette smoking and -420C/G (GG) (γ = 5.6018 in the SI ≤400 subgroup; γ = 4.4770 in the SI >400 subgroup) and Pro198Leu (LL) (γ = 5.7715 in the SI ≤400 subgroup; γ = 4.5985 in the SI >400 subgroup) in increasing the risk of NAFLD. CONCLUSION NAFLD risk factors include -420C/G (GG), Pro198Leu (LL) and cigarette smoking, and these three factors have a significant additive effect on NAFLD risk.
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Affiliation(s)
- Chao-Xian Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, China,Address for correspondence: Prof. Chao-Xian Zhang, Department of Gastroenterology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, China E-Mail:
| | - Li-Ke Guo
- Depatment of Stomatology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, China
| | - Yong-Mei Qin
- Department of Gastroenterology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, China
| | - Guang-Yan Li
- Department of Gastroenterology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, China
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Ghalandari H, Hosseini-Esfahani F, Mirmiran P. The Association of Polymorphisms in Leptin/Leptin Receptor Genes and Ghrelin/Ghrelin Receptor Genes With Overweight/Obesity and the Related Metabolic Disturbances: A Review. Int J Endocrinol Metab 2015; 13:e19073. [PMID: 26425125 PMCID: PMC4584420 DOI: 10.5812/ijem.19073v2] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 02/22/2015] [Accepted: 04/27/2015] [Indexed: 12/27/2022] Open
Abstract
CONTEXT Leptin and ghrelin are two important appetite and energy balance-regulating peptides. Common polymorphisms in the genes coding these peptides and their related receptors are shown to be associated with body weight, different markers of obesity and metabolic abnormalities. This review article aims to investigate the association of common polymorphisms of these genes with overweight/obesity and the metabolic disturbances related to it. EVIDENCE ACQUISITION The keywords leptin, ghrelin, polymorphism, single-nucleotide polymorphism (SNP), obesity, overweight, Body Mass Index, metabolic syndrome, and type 2 diabetes mellitus (T2DM) (MeSH headings) were used to search in the following databases: Pubmed, Sciencedirect (Elsevier), and Google scholar. Overall, 24 case-control studies, relevant to our topic, met the criteria and were included in the review. RESULTS The most prevalent leptin/leptin receptor genes (LEP/LEPR) and ghrelin/ghrelin receptor genes (GHRL/GHSR) single nucleotide polymorphisms studied were LEP G-2548A, LEPR Q223R, and Leu72Met, respectively. Nine studies of the 17 studies on LEP/LEPR, and three studies of the seven studies on GHRL/GHSR showed significant relationships. CONCLUSIONS In general, our study suggests that the association between LEP/LEPR and GHRL/GHSR with overweight/obesity and the related metabolic disturbances is inconclusive. These results may be due to unidentified gene-environment interactions. More investigations are needed to further clarify this association.
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Affiliation(s)
- Hamid Ghalandari
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
| | - Firoozeh Hosseini-Esfahani
- Nutrition and Endocrine Research Center, Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
| | - Parvin Mirmiran
- Nutrition and Endocrine Research Center, Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
- Department of Clinical Nutrition and Dietetics, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
- Corresponding author: Parvin Mirmiran, Nutrition and Endocrine Research Center,Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences,Tehran, IR Iran. Tel: +98-2122402463, Fax: +98-2122432500, E-mail:
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16
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Associations of Resistin Levels with Resistin Gene Polymorphism and Metabolic Syndrome in Thais. J Med Biochem 2015; 34:170-178. [PMID: 28356829 PMCID: PMC4922327 DOI: 10.2478/jomb-2014-0034] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 02/14/2014] [Indexed: 01/14/2023] Open
Abstract
Background Metabolic syndrome (MS) is a clinical constellation comprising risk factors associated with developing cardiovascular disease and type 2 diabetes. Resistin has been suggested as a linkage between obesity, inflammation and type 2 diabetes. This study aimed to investigate resistin concentrations and hematological-biochemical parameters in MS subjects and controls, and to determine whether two resistin gene (RETN) polymorphisms (−420C>G & +299G>A) are linked to resistin levels and MS among Thais. Methods This case-control study was performed with 322 Thai volunteers: 160 MS subjects and 162 controls. Anthropometric parameters and hematological-biochemical variables were determined. The RETN −420C>G (rs1862513) and +299G>A (rs3745367) polymorphisms were genotyped by PCR-RFLP technique. Results The resistin levels of the MS group were significantly higher than those of the control group. Resistin levels were positively correlated with anthropometric parameters and WBC count in the MS group. According to RETN −420C>G polymorphism, MS subjects with the G allele (CG/GG) (3.9 μg/L) had significantly higher resistin concentrations than in subjects with the CC genotype (2.4 μg/L); with regard to RETN +299G>A polymorphism, carriers with the A allele (GA/AA) (3.8 μg/L) had significantly higher resistin levels than subjects with the GG genotype (2.7 μg/L), after adjusting for potential covariates. However, the RETN −420C>G and +299G>A polymorphisms were not found to be associated with MS, hematological-biochemical parameters and anthropometric variables. Conclusions These findings suggest resistin levels are linked with MS and the RETN −420C>G and +299G>A polymorphisms have impacted the circulating resistin concentrations. However, these two RETN polymorphisms probably do not influence susceptibility to MS among Thais.
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Yako YY, Echouffo-Tcheugui JB, Balti EV, Matsha TE, Sobngwi E, Erasmus RT, Kengne AP. Genetic association studies of obesity in Africa: a systematic review. Obes Rev 2015; 16:259-72. [PMID: 25641693 DOI: 10.1111/obr.12260] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2014] [Revised: 11/13/2014] [Accepted: 12/05/2014] [Indexed: 12/31/2022]
Abstract
Obesity is increasing in Africa, but the underlying genetic background largely remains unknown. We assessed existing evidence on genetic determinants of obesity among populations within Africa. MEDLINE and EMBASE were searched and the bibliographies of retrieved articles were examined. Included studies had to report on the association of a genetic marker with obesity indices and the presence/occurrence of obesity/obesity trait. Data were extracted on study design and characteristics, genetic determinants and effect estimates of associations with obesity indices. According to this data, over 300 polymorphisms in 42 genes have been studied in various population groups within Africa mostly through the candidate gene approach. Polymorphisms in genes such as ACE, ADIPOQ, ADRB2, AGRP, AR, CAPN10, CD36, C7orf31, DRD4, FTO, MC3R, MC4R, SGIP1 and LEP were found to be associated with various measures of obesity. Of the 36 polymorphisms previously validated by genome-wide association studies (GWAS) elsewhere, only FTO and MC4R polymorphisms showed significant associations with obesity in black South Africans, Nigerians and Ghanaians. However, these data are insufficient to establish the true nature of genetic susceptibility to obesity in populations within Africa. There has been recent progress in describing the genetic architecture of obesity among populations within Africa. This effort needs to be sustained via GWAS studies.
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Affiliation(s)
- Y Y Yako
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa; Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Cape Town, South Africa
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Badsi MN, Mediene-Benchekor S, Ouhaibi-Djellouli H, Lardjam-Hetraf SA, Boulenouar H, Meroufel DN, Hermant X, Hamani-Medjaoui I, Saidi-Mehtar N, Amouyel P, Houti L, Meirhaeghe A, Goumidi L. Combined effect of established BMI loci on obesity-related traits in an Algerian population sample. BMC Genet 2014; 15:128. [PMID: 25422053 PMCID: PMC4247883 DOI: 10.1186/s12863-014-0128-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Accepted: 11/06/2014] [Indexed: 01/25/2023] Open
Abstract
Background Genome-wide association studies have identified variants associated with BMI in populations of European descent. We sought to establish whether genetic variants that are robustly associated with BMI could modulate anthropometric traits and the obesity risk in an Algerian population sample, the ISOR study. The ISOR study of 787 adult subjects (aged between 30 and 64) provided a representative sample of the population living in the city of Oran (north-west of Algeria). We investigated the combined effect of 29 BMI established genetic variants using a genetic predisposition score (GPS) on anthropometric traits and obesity risk in 740 subjects. Results We found that each additional risk allele in the GPS was associated with an increment in the mean [95% CI] for BMI of 0.15 [0.06 - 0.24] kg/m2 (p = 0.001). Although the GPS was also associated with higher waist (p = 0.02) and hip (p = 0.02) circumferences, these associations were in fact driven by BMI. The GPS was also associated with an 11% higher risk of obesity (OR [95%CI] = 1.11 [1.05 - 1.18], p = 0.0004). Conclusions Our data showed that a GPS comprising 29 BMI established loci developed from Europeans seems to be a valid score in a North African population. Our findings contribute to a better understanding of the genetic susceptibility to obesity in Algeria. Electronic supplementary material The online version of this article (doi:10.1186/s12863-014-0128-1) contains supplementary material, which is available to authorized users.
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Ortega L, Navarro P, Riestra P, Gavela-Pérez T, Soriano-Guillén L, Garcés C. Association of resistin polymorphisms with resistin levels and lipid profile in children. Mol Biol Rep 2014; 41:7659-64. [PMID: 25096511 DOI: 10.1007/s11033-014-3658-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Accepted: 07/27/2014] [Indexed: 12/19/2022]
Abstract
Previous research has found a correlation between resistin and lipid level variations. Polymorphisms in the resistin gene (RETN) could be involved in this relationship, but the results of the different studies are contradictory. The aim of this study was to examine the association between resistin and lipid levels, and to determine whether resistin polymorphisms are associated with resistin levels and lipid profile in prepubertal children and adolescents. The single nucleotide polymorphisms (SNPs) rs1862513 and rs10401670 were analyzed in 442 randomly selected 6- to 8-year-old children and 827 children aged 12-16 years. Anthropometric data were recorded. Lipid profile was determined using standard methods. Serum resistin levels were measured using a multiplexed bead immunoassay. Resistin polymorphisms were determined by TaqMan(®) allelic discrimination assays. A relationship was found between serum levels of resistin and the SNP rs10401670 in 6- to 8-year-old boys. SNP rs10401670 was also related to TC and LDL-cholesterol in 12- to 16-year-old boys and to HDL-C in 12- to 16-year-old girls. SNP rs1862513 was not related to any of the studied variables. Serum resistin levels were significantly and negatively associated with ApoAI levels in 12- to 16-year-old girls. A SNP in the 3'UTR region of RETN (rs10401670) is associated with resistin levels and lipid profile in children, showing different associations depending on age and gender.
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Affiliation(s)
- Lorena Ortega
- Lipid Research Laboratory, IIS-Fundación Jiménez Díaz, Avda. Reyes Católicos, 2., 28040, Madrid, Spain
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