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Nathan S, Valentine B, Tom W. Functional Haplotypes in the ADIPOQ Gene are Associated with Underweight, Immunosuppression and Viral Suppression in Kenyan HIV-1 Infected Antiretroviral Treatment Naive and Experienced Injection Substance Users. Ethiop J Health Sci 2021; 30:489-500. [PMID: 33897209 PMCID: PMC8054454 DOI: 10.4314/ejhs.v30i4.4] [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] [Indexed: 11/17/2022] Open
Abstract
Background Human immunodeficiency virus and injection substance use have an influence on genes and gene expression. These effects could be beneficial or detrimental in defining disease outcomes. Adiponectin gene is key in modulating metabolic and immunoregulatory functions. Understanding the effects of human immunodeficiency virus and injection substance use on the gene in the context of antiretroviral therapy is important for predicting disease outcomes. Methods This cross-sectional genetic study determined polymorphisms in the promoter region of adiponectin gene. Two variants were analyzed: rs2241766 and rs266729. Polymorphisms were associated with clinical markers of disease outcome; underweight, immunosuppression and viral suppression. The variants were genotyped via random fragment length polymorphism. Result GC haplotype was associated with higher odds of having underweight (OR, 2.21; 95% CI, 1.83-4.60; P=0.008 vs. OR, 2.30; 95% CI, 1.89-4.71; P=0.006) in antiretroviral treatment - naive and experienced injection substance users and immunosuppression (OR, 1.90; 95% CI 1.67-3.98, P=0.041) in naive. Bonferroni correction revealed GC haplotype carriers only to have low body mass index in both naive (median, 14.8; IQR, 3.2 kg/m2; P=0.002) and experienced (median, 15.2; IQR, 3.2 kg/m2; P=0.002) injection substance users. Circulating total adiponectin levels were higher in naive (median, 19.5; IQR, 7.9 µg/ml) than - experienced (median, 12.0; IQR, 4.4 µg/ml) injection substance users (P=0.0001). GC carriers presented with low serum adiponectin levels in both study groups. Conclusion The study revealed haplotypes of adiponectin gene at loci rs2241766 and rs266729 that could determine disease outcomes in human immunodeficiency virus -1 antiretroviral treatment- naive and experienced injection substance users.
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Affiliation(s)
- Shaviya Nathan
- Department of Medical Laboratory Sciences, Masinde Muliro University of Science and Technology, Kakamega, Kenya
| | | | - Were Tom
- Department of Medical Laboratory Sciences, Masinde Muliro University of Science and Technology, Kakamega, Kenya
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2
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The impact of promoter single nucleotide polymorphism (-11391 G/A) on type II diabetes mellitus in Iraqi population. GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2021.101115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Association between adiponectin rs17300539 and rs266729 gene polymorphisms with serum adiponectin level in an Iranian diabetic/pre-diabetic population. Endocr Regul 2019; 52:176-184. [PMID: 31517610 DOI: 10.2478/enr-2018-0022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE Adiponectin is an adipokine that is mostly secreted from adipose tissues and has a significant role in the improvement of insulin resistant and type 2 diabetes mellitus (T2DM). This study is conducted to examine the association of rs17300539 and rs266729 with T2DM and serum adiponectin level in Iranian population. METHOD A case-control study was conducted on 80 individuals with fasting plasma glucose (FPG) >100 (mg/dl) as diabetic-pre-diabetic group, and 80 individuals with fasting plasma glucose 70-100 (mg/dl) as control group. DNA extraction was done on samples and genotyping method was performed by PCR-RFLP. RESULT The frequency of GA genotype in rs17300539 (diabetic/pre-diabetic 35.5%, control 11.3%, (OR [95%CI]=4.18[1.8-9.6]; p=0.001) and allele A (diabetic/pre-diabetic 31%, control 9%, (OR [95% CI]=4.67[2-10.7]) was significantly more in diabetic/pre-diabetic group compared to control group. The difference in the genotype frequency for rs266729 in diabetic group compared to that in control was not significant. The levels of adiponectin in diabetic cases had no difference compared to the control group in both polymorphisms. The rs266729 was not associated with any metabolic parameter except waist circumference (p=0.03), however, rs17300539 shows association only with fasting plasma glucose, triglyceride, and total cholesterol (p=0.007, 0.039, 0.0032, respectively). CONCLUSION Our findings showed that there is an association between rs17300539 with the increase of T2DM but rs266729 showed no association with the risk of T2DM. Allele A of rs17300539 increased the risk of diabetes. There is no association between adiponectin level and both polymorphisms.
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Associations of SNPs of the ADIPOQ Gene with Serum Adiponectin Levels, Unstable Angina, and Coronary Artery Disease. Biomolecules 2019; 9:biom9100537. [PMID: 31561637 PMCID: PMC6843172 DOI: 10.3390/biom9100537] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 09/22/2019] [Accepted: 09/25/2019] [Indexed: 12/26/2022] Open
Abstract
Adiponectin is encoded by the ADIPOQ gene and participates in the pathogenesis of cardiovascular and metabolic diseases. The goal of the study was to assess associations of rs17300539, rs266729, rs182052, rs2241766, and rs17366743 single nucleotide polymorphisms (SNPs) of the ADIPOQ gene with concentrations of serum adiponectin and with coronary atherosclerosis and type 2 diabetes mellitus in 447 patients (316 men and 131 women) subjected to coronary angiography. SNPs of the ADIPOQ gene of the study participants were genotyped using real-time PCR. Multivariate linear regression adjusted for covariates revealed significant association between rs182052 SNP and serum adiponectin concentration (β= -0.11; 95% confidence interval (95%CI): -0.19, -0.03; p = 0.016). Regression analysis revealed an increase in prevalence of unstable angina (OR (odds ratio) = 2.55; 95%CI 1.4-4.82; p = 0.018) and coronary artery disease (OR = 1.55; 95%CI 1.15-2.09; p = 0.021) per copy of the rs182052 A allele. Prevalence of type 2 diabetes mellitus was higher in subjects with the rs182052 A allele (OR = 2.29; 95%CI 1.29-4.21; p = 0.024). Regression analysis of rs266729 showed that prevalence of unstable angina was increased (OR = 3.59; 95%CI 1.17-10.01; p = 0.045) in the subjects with the GG genotype and prevalence of coronary artery disease (CAD) was significantly increased (OR = 1.48; 95%CI 1.09-2.03; p = 0.045) per copy of the G allele. Haplotype analysis revealed that the subjects with the GCATT haplotype have lower adiponectin levels (β= -0.15; p = 0.042) and higher prevalence of unstable angina (OR = 3.597; p = 0.007) compared with reference haplotype carriers. Thus, the results indicate that minor A allele of rs182052 of the ADIPOQ gene is significantly associated with a decrease in serum adiponectin levels, and two SNPs (rs182052 and rs266729) of the ADIPOQ gene are significantly associated with cardiovascular and metabolic diseases.
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5
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Mahmoud AA, Moghazy HM, Yousef LM, Mohammad AN. Adiponectin rs2241766 and rs266729 gene polymorphisms in non-alcoholic fatty liver disease. GENE REPORTS 2019. [DOI: 10.1016/j.genrep.2019.100381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Wu L, Wang CC. Genetic variants in promoter regions associated with type 2 diabetes mellitus: A large-scale meta-analysis and subgroup analysis. J Cell Biochem 2019; 120:13012-13025. [PMID: 30860284 DOI: 10.1002/jcb.28572] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 02/20/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Promoter plays important roles in regulating transcription of genes. Association studies of genetic variants in promoter region with type 2 diabetes (T2D) risk have been reported, but most were limited to small number of individual genetic variants and insufficient sample sizes. In addition, the effect of study populations and demographic characteristics were often neglected. METHODS In this study, we conducted a large-scale meta-analysis and subgroup analysis of T2D associated genetic variants in the promoter regions to evaluate their contribution to the susceptibility in T2D. Alleles and genotypes from cohort or case-controlled studies were extracted for future study. Total 41 742 cases and 50 493 controls for three loci were involved in 70 articles. RESULTS Seventy case-controlled studies of three genes with 41 742 cases and 50 493 controls were included. Meta-analysis showed only rs266729 and rs17300539 of ADIPOQ, and rs1884613, rs2144908, and rs4810424 of HNF4A were significantly associated with T2D risk. Subgroup analysis showed that both rs266729 and rs17300539 of ADIPOQ were associated with the risk of T2D in Caucasian population, but only rs266729 of ADIPOQ in Asian population and rs2144908 in other population including multinational North American. For diagnostic criteria, rs266729 of ADIPOQ and rs2144908 of HNF4A were associated with T2D risk when WHO/ADA diagnostic criteria were used. For genotyping methods, both rs266729 of ADIPOQ and rs2144908 of HNF4A were associated with T2D risk when other than Taqman and Sequencing methods were used. CONCLUSIONS T2D was significantly associated with promoter rs266729, rs17300539, rs1884613, rs2144908, and rs4810424, and the association of T2D risk were affected by study population, diagnostic criteria, and genotype methods.
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Affiliation(s)
- Ling Wu
- Department of Obstetrics & Gynaecology, The Chinese University of Hong Kong, Hong Kong
| | - Chi Chiu Wang
- Department of Obstetrics & Gynaecology, The Chinese University of Hong Kong, Hong Kong.,Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong.,School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong
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7
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Chun KA, Kocarnik JM, Hardikar SS, Robinson JR, Berndt SI, Chan AT, Figueiredo JC, Lindor NM, Song M, Schoen RE, Hayes RB, Potter JD, Nassir R, Bézieau S, Le Marchand L, Slattery ML, White E, Peters U, Newcomb PA. Leptin gene variants and colorectal cancer risk: Sex-specific associations. PLoS One 2018; 13:e0206519. [PMID: 30379922 PMCID: PMC6209341 DOI: 10.1371/journal.pone.0206519] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 10/15/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND High levels of serum leptin and low levels of serum adiponectin are strongly correlated with obesity, a well-established risk factor for colorectal cancer (CRC). Growing evidence suggests that dysregulation of leptin and adiponectin levels may play an etiological role in colorectal carcinogenesis. We evaluated 20 candidate variants in 4 genes previously shown to alter serum leptin and adiponectin levels for associations with obesity (BMI>30 kg/m2) and CRC risk. METHODS We analyzed 6,246 CRC cases and 7,714 population-based controls from 11 studies within the Genetics and Epidemiology of Colorectal Cancer Consortium (GECCO). Associations of each variant with obesity or CRC were evaluated using multivariate logistic regression models stratified by sex and adjusted for age, a study variable, and the first three principal components of genetic ancestry. Gene-specific False Discovery Rate (FDR)-adjusted p-values <0.05 denoted statistical significance. RESULTS Two variants in the leptin gene showed statistically significant associations with CRC among women: LEP rs2167270 (OR = 1.13, 95% CI: 1.06-1.21) and LEP rs4731426 (OR = 1.09, 95% CI: 1.02-1.17). These associations remained significant after adjustment for obesity, suggesting that leptin SNPs may influence CRC risk independent of obesity. We observed statistically significant interactions of the leptin variants with hormone replacement therapy (HRT) for CRC risk; these variant associations were strengthened when analyses were restricted to post-menopausal women with low estrogen exposure, as estimated by 'never use' of HRT and/or non-obese BMI. No variants were associated with CRC among men. CONCLUSIONS Leptin gene variants may exhibit sex-specific associations with CRC risk. Endogenous and exogenous estrogen exposure may modify the association between these variants, leptin levels, and CRC risk.
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Affiliation(s)
- Kelsey A. Chun
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States of America
| | - Jonathan M. Kocarnik
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States of America
- Institute of Translational Health Sciences, University of Washington, Seattle, WA, United States of America
| | - Sheetal S. Hardikar
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States of America
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, United States of America
| | - Jamaica R. Robinson
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States of America
- Institute of Translational Health Sciences, University of Washington, Seattle, WA, United States of America
| | - Sonja I. Berndt
- Division of Cancer Epidemiology & Genetics, National Cancer Institute, Bethesda, MD, United States of America
| | - Andrew T. Chan
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Cambridge, MA, United States of America
| | - Jane C. Figueiredo
- Department of Preventive Medicine, University of Southern California, Los Angeles, CA, United States of America
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Noralane M. Lindor
- Department of Health Sciences Research, Mayo Clinic, Scottsdale, AZ, United States of America
| | - Mingyang Song
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Cambridge, MA, United States of America
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States of America
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America
| | - Robert E. Schoen
- Division of Gastroenterology, Hepatology, and Nutrition, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Richard B. Hayes
- Division of Epidemiology, Department of Population Health, New York University School of Medicine, New York, NY, United States of America
| | - John D. Potter
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States of America
- Department of Epidemiology, University of Washington, Seattle, WA, United States of America
| | - Rami Nassir
- Department of Biochemistry and Molecular Medicine, University of California-Davis, Davis, CA, United States of America
| | - Stéphane Bézieau
- Service de Génétique Médicale, Université de Nantes, Nantes, France
| | - Loic Le Marchand
- Epidemiology Program, University of Hawai‘i Cancer Center, Honolulu, HI, United States of America
| | - Martha L. Slattery
- Department of Internal Medicine, University of Utah Health Sciences Center, Salt Lake City, UT, United States of America
| | - Emily White
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States of America
- Department of Epidemiology, University of Washington, Seattle, WA, United States of America
| | - Ulrike Peters
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States of America
- Department of Epidemiology, University of Washington, Seattle, WA, United States of America
| | - Polly A. Newcomb
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States of America
- Department of Epidemiology, University of Washington, Seattle, WA, United States of America
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Peters KE, Davis WA, Beilby J, Hung J, Bruce DG, Davis TME. The relationship between circulating adiponectin, ADIPOQ variants and incident cardiovascular disease in type 2 diabetes: The Fremantle Diabetes Study. Diabetes Res Clin Pract 2018; 143:62-70. [PMID: 29969725 DOI: 10.1016/j.diabres.2018.06.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 05/25/2018] [Accepted: 06/13/2018] [Indexed: 01/23/2023]
Abstract
AIMS To investigate the relationship between serum adiponectin, ADIPOQ variants and haplotypes, and cardiovascular disease (CVD) in type 2 diabetes (T2D). METHODS Baseline data including serum total adiponectin and 21 ADIPOQ polymorphisms were available for 1076 participants (mean age 64.0 years, 49.4% males) in a community-based cohort followed for an average of 12 years. RESULTS During 8843 patient-years of follow-up for coronary heart disease (CHD), 13,494 patient-years for ischaemic stroke (IS) and 12,028 patient-years for heart failure (HF), 40.4%, 11.8% and 31.9% of patients experienced a first episode of CHD, IS or HF, respectively. In Cox regression after adjustment for the most parsimonious models, loge(serum adiponectin) and the ADIPOQ variant rs12495941 were inversely associated with incident CHD (hazard ratio [95% confidence interval] 0.79 [0.65-0.98] and 0.64 [0.44-0.94], respectively), while rs1648707 was positively associated with incident IS (2.05 [1.37-3.06]; all P ≤ 0.028). In males, rs9860747 and rs17366568 predicted CHD (0.22 [0.05-0.92] and 1.50 [1.01-2.20]; P ≤ 0.042), while rs1648707 and rs1063537 predicted IS (2.36 [1.32-4.23] and 2.09 [1.17-3.72]; P ≤ 0.012). In females, rs10937273 predicted CHD via an interaction with serum adiponectin (0.43 [0.21-0.91]; P = 0.027), while rs864265 predicted IS (0.43 [0.21-0.88], P = 0.021). The associations between ADIPOQ variants and outcomes were supported by haplotype block analysis. Neither serum adiponectin nor ADIPOQ variants predicted HF. CONCLUSIONS Serum total adiponectin and gender-specific ADIPOQ variants predict CHD and IS, but not HF, independently of other risk factors in community-based patients with T2D. In contrast to some previous studies, there was no relationship between a high serum total adiponectin and CVD.
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Affiliation(s)
- Kirsten E Peters
- Medical School, University of Western Australia, Crawley, Western Australia, Australia.
| | - Wendy A Davis
- Medical School, University of Western Australia, Crawley, Western Australia, Australia.
| | - John Beilby
- Department of Diagnostic Molecular Genomics, PathWest, Queen Elizabeth II Medical Centre, Nedlands, Western Australia, Australia; School of Biomedical Sciences, University of Western Australia, Crawley, Western Australia, Australia.
| | - Joe Hung
- Medical School, University of Western Australia, Crawley, Western Australia, Australia.
| | - David G Bruce
- Medical School, University of Western Australia, Crawley, Western Australia, Australia.
| | - Timothy M E Davis
- Medical School, University of Western Australia, Crawley, Western Australia, Australia.
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Zhou Q, Chen B, Ji T, Luo M, Luo J. Association of genetic variants in RETN, NAMPT and ADIPOQ gene with glycemic, metabolic traits and diabetes risk in a Chinese population. Gene 2017; 642:439-446. [PMID: 29101068 DOI: 10.1016/j.gene.2017.10.084] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 10/26/2017] [Accepted: 10/30/2017] [Indexed: 12/28/2022]
Abstract
Abnormal serum levels of adipokine have been established to be a strong predictor of developing several human diseases including type 2 diabetes mellitus (T2DM). Association studies have reported several genetic variants in genes coding adipokines with contributions to T2DM susceptibility as well as some glycemic and metabolic traits, of which the single nucleotide polymorphisms (SNPs) of RETN, NAMPT, and ADIPOQ gene were well documented. However, little is known about contributions of these SNPs to above phenotypes in Chinese. In the current study, with availably quantitative glycemic and metabolic data from a total of 185 T2DM patients and 191 healthy controls, we tested associations between four SNPs of RETN, NAMPT, ADIPOQ gene and 13 glycemic and metabolic traits. The results showed that the rs1862513 and rs34861192 of RETN gene were functional and negatively correlated with the levels of serum creatinine and cholesterol, respectively. The rs16861194 of ADIPOQ gene was positively correlated with the aspartate aminotransferase (AST) and AST/alanine aminotransferase level. Moreover, the rs34861192 and rs13237989 of NAMPT gene synergistically affected the levels of insulin and glycemic index. However, due to the limited sample size, only the rs16861194 exerted a significant increased risk on T2DM. These results underscore the contributions of SNPs in RETN, NAMPT, ADIPOQ gene to glycemic and metabolic traits as well as T2DM susceptibility in Chinese.
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Affiliation(s)
- Qiang Zhou
- Clinical Laboratory, The Second Affiliated Hospital of Guangzhou Medical University, No. 250 Changgang East Road, Haizhu District, Guangzhou 510260, China
| | - Bo Chen
- Clinical Laboratory, The Second Affiliated Hospital of Guangzhou Medical University, No. 250 Changgang East Road, Haizhu District, Guangzhou 510260, China
| | - Tianxing Ji
- Clinical Laboratory, The Second Affiliated Hospital of Guangzhou Medical University, No. 250 Changgang East Road, Haizhu District, Guangzhou 510260, China
| | - Miaoshan Luo
- Department of Pharmacology, Guangzhou Medical University, Xinzao, Panyu District, Guangzhou 511436, China
| | - Jiandong Luo
- Department of Pharmacology, Guangzhou Medical University, Xinzao, Panyu District, Guangzhou 511436, China.
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Li S, Wang X, Yang L, Yao S, Zhang R, Xiao X, Zhang Z, Wang L, Xu Q, Wang SL. Interaction between β-hexachlorocyclohexane and ADIPOQ genotypes contributes to the risk of type 2 diabetes mellitus in East Chinese adults. Sci Rep 2016; 6:37769. [PMID: 27883041 PMCID: PMC5121886 DOI: 10.1038/srep37769] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 11/01/2016] [Indexed: 01/06/2023] Open
Abstract
Growing evidence links environmental exposure to hexachlorocyclohexanes (HCHs) to the risk of type 2 diabetes mellitus (T2DM), and ADIPOQ that encodes adiponectin is considered as an important gene for T2DM. However, the role of ADIPOQ-HCH interaction on T2DM risk remains unclear. Thus, a paired case-control study was conducted in an East Chinese community. A total of 1446 subjects, including 723 cases and 723 controls matched on age, gender and residence, were enrolled, and 4 types of HCH isomers were measured in serum samples using GC-MS/MS. Additionally, 4 candidate ADIPOQ SNPs (rs182052, rs266729, rs6810075, and rs16861194) were genotyped by TaqMan assay, and plasma adiponectin was measured using ELISA. No associations between 4 SNPs and T2DM risk were found, but T2DM risk significantly increased with serum levels of β-HCH (P < 0.001). Furthermore, the synergistic interaction between β-HCH and rs182052 significantly increased T2DM risk (OR I-additive model = 2.20, OR I-recessive model = 2.13). Additionally, individuals carrying only rs182052 (A allele) with high levels of β-HCH had significant reduction in adiponectin levels (P = 0.016). These results indicate that the interaction between rs182052 and β-HCH might increase the risk of T2DM by jointly decreasing the adiponectin level and potentially trigger T2DM development.
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Affiliation(s)
- Shushu Li
- Key Lab of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, P. R. China.,State Key Lab of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, P. R. China
| | - Xichen Wang
- Key Lab of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, P. R. China
| | - Lu Yang
- Key Lab of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, P. R. China.,State Key Lab of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, P. R. China
| | - Shen Yao
- Key Lab of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, P. R. China.,State Key Lab of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, P. R. China
| | - Ruyang Zhang
- Key Lab of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, P. R. China
| | - Xue Xiao
- Key Lab of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, P. R. China
| | - Zhan Zhang
- Key Lab of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, P. R. China.,State Key Lab of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, P. R. China
| | - Li Wang
- Key Lab of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, P. R. China
| | - Qiujin Xu
- Lake Research Center, Chinese Research Academy of Environmental Sciences, 8 Dayangfang, Anwai Beiyuan, Beijing 100012, P. R. China
| | - Shou-Lin Wang
- Key Lab of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, P. R. China.,State Key Lab of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, P. R. China
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11
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Gu C, Qu Y, Zhang G, Sun L, Zhu Y, Ye D. A single nucleotide polymorphism in ADIPOQ predicts biochemical recurrence after radical prostatectomy in localized prostate cancer. Oncotarget 2016; 6:32205-11. [PMID: 26320190 PMCID: PMC4741670 DOI: 10.18632/oncotarget.4980] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 07/16/2015] [Indexed: 11/30/2022] Open
Abstract
Adiponectin has been implicated in prostate cancer (PCa) aggressiveness. However, the role of genetic variations in the adiponectin (ADIPOQ) gene in PCa progression remains unknown. To determine whether genetic variants in ADIPOQ are associated with the risk of biochemical recurrence (BCR) after radical prostatectomy (RP). We evaluated three common ADIPOQ polymorphisms in 728 men with clinically localized PCa who underwent RP. Multivariable Cox proportional hazards models and Kaplan–Meier analysis were used to assess their prognostic significance on BCR. The plasma adiponectin concentrations were measured by enzyme-linked immunosorbent assay. ADIPOQ rs182052 variant allele was associated with both increased risk of BCR [HR: 2.44; 95% confidence interval (CI): 1.57–3.79, P = 6×10−5] and decreased adiponectin level (β = −0.048, P = 0.004). Stratified analyses demonstrated that the association was more pronounced in men with higher visceral adipose tissue. Our data support that the ADIPOQ rs182052 SNP may be a predictive biomarker for BCR after RP by a possible mechanism of altering the adiponectin level. If validated, genetic predictors of outcome may help individualizing treatment for PCa.
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Affiliation(s)
- Chengyuan Gu
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yuanyuan Qu
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Guiming Zhang
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - LiJiang Sun
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yao Zhu
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Dingwei Ye
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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Genetic and Non-Genetic Determinants of Circulating Levels of Adiponectin in a Cohort of Chilean Subjects. Mol Diagn Ther 2016. [PMID: 26199115 DOI: 10.1007/s40291-015-0146-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Low adiponectin levels have been associated with obesity, diabetes, coronary disease and polymorphisms. The aim of this study was to assess the clinical and genetic factors related to adiponectin levels in a Chilean adult population. METHODS Four groups of 27 individuals, stratified by gender and abdominal obesity, were included in this cross-sectional study. Physical activity level, cardiovascular risk factors and therapy were assessed. Anthropometric measurements, adiponectin, glucose, insulin, hs-CRP, rs1501299, rs2241766, rs266729 and rs17300539 single nucleotide polymorphisms of the adiponectin gene were determined. RESULTS Adiponectin levels were inversely correlated with waist circumference, waist-to-hip ratio, weight, body mass index, insulin levels, homeostasis model insulin resistance index (HOMA-IR) and physical activity. Mean adiponectin levels were lower in men (10.1 ± 3.6 vs 11.9 ± 2.9 μg/mL, p = 0.0051), obese (9.9 ± 3.2 vs 12.1 ± 3.3, p < 0.01), physically inactive (8.9 ± 3.2 vs 11.0 ± 2.8, p = 0.015) and insulin-resistant individuals (10.2 ± 3.1 vs 12.9 ± 3.9; p = 0.005). Adiponectin levels were lower in subjects with GG genotype (rs1501299) compared with those with TT or GT variants (6.9 ± 4.6 vs 12.2 ± 2.9 and 11.5 ± 3.4 μg/mL, p = 0.006) but were similar in the other polymorphisms studied. CONCLUSION Lower adiponectin levels were related to gender, abdominal obesity, physical activity and insulin resistance and were less influenced by the polymorphisms studied.
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Genetic variants in adiponectin and blood pressure responses to dietary sodium or potassium interventions: a family-based association study. J Hum Hypertens 2016; 30:563-70. [PMID: 27011258 PMCID: PMC4981730 DOI: 10.1038/jhh.2016.5] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 12/18/2015] [Accepted: 01/11/2016] [Indexed: 12/18/2022]
Abstract
Previous studies have shown that genetic factors might have an important role in blood pressure (BP) responses to dietary salt or potassium intake. The aim of this study was to assess the association of common genetic variants of the adiponectin gene with BP responses to controlled dietary sodium or potassium interventions. Subjects (n=334) from 124 families in rural areas of Northern China were recruited. After a 3-day baseline observation, participants sequentially maintained a 7-day low-sodium diet (NaCl, 3 g per day; or sodium, 51.3 mmol per day), followed by a 7-day high-sodium diet (NaCl, 18 g per day; or sodium, 307.8 mmol per day) and a 7-day high-sodium plus potassium supplementation intervention (KCl, 4.5 g per day; or potassium, 60 mmol per day). A total of seven single nucleotide polymorphisms (SNPs) in the adiponectin gene were selected as the study sites. After adjustment for multiple testing, the adiponectin SNP rs16861205 was significantly associated with the diastolic BP (DBP) response to low-salt intervention, and the DBP and mean arterial pressure (MAP) responses to high-salt intervention (P=0.028, 0.023 and 0.027, respectively). SNP rs822394 was associated with the DBP and MAP responses to low-salt intervention and the DBP response to high-salt intervention (P=0.023, 0.030 and 0.033 respectively). Meanwhile, significant association also existed between SNP rs16861194 and the systolic BP response to potassium supplementation intervention (P=0.026). In addition, SNP rs822394 was significantly associated with basal DBP after adjustment for multiple testing (P=0.033). Our study indicated that the genetic polymorphisms in the adiponectin gene are significantly associated with BP responses to dietary sodium and potassium intake.
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Inflammatory and Immune Response Genes Polymorphisms are Associated with Susceptibility to Chronic Obstructive Pulmonary Disease in Tatars Population from Russia. Biochem Genet 2016; 54:388-412. [DOI: 10.1007/s10528-016-9726-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 03/11/2016] [Indexed: 02/08/2023]
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Wei Z, Li-Qun Z, Xiao-Ling H, Jian Q, Guo-Yue Y. Association of adiponectin gene polymorphisms and additional gene-gene interaction with nonalcoholic fatty liver disease in the Chinese Han population. Hepatol Int 2016; 10:511-7. [PMID: 26865047 DOI: 10.1007/s12072-015-9687-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 11/06/2015] [Indexed: 01/21/2023]
Abstract
PURPOSE To investigate the association between the single nucleotide polymorphisms (SNPs) of the adiponectin gene and nonalcoholic fatty liver disease (NAFLD) as well as the impact of the interaction of multiple SNPs on NAFLD risk, based on a Chinese population study. METHODS A total of 612 subjects (411 male, 201 female) were selected, including 302 NAFLD patients and 310 controls. Three SNPs were selected for genotyping in the case-control study: rs266729, rs822393, and rs1501299. A logistic regression model was used to examine the interaction between the SNPs and NAFLD. The odds ratio (OR) and 95 % confidence interval (95 % CI) were calculated. Generalized multifactor dimensionality reduction (GMDR) was employed to analyze the interaction among SNPs. RESULTS Logistic analysis showed a significant association between genotypes of variants in rs266729 and rs822393 and increased NAFLD risk. The carriers of the homozygous mutant of two SNP polymorphisms revealed increased NAFLD risk compared to those with wild-type homozygotes; ORs (95 % CI) were 1.31 (1.14-1.81) (p = 0.001) and 1.18 (1.05-1.71) (p = 0.005), respectively. There was a significant two-locus model (p = 0.0010) involving rs266729 and rs822393, indicating a potential gene-gene interaction between rs266729 and rs822393. Overall, the two-locus models had a cross-validation consistency of 10 and testing accuracy of 62.17 %. Subjects with the CG or GG and CT or TT genotype have the highest NAFLD risk compared to subjects with the CC-CC genotype; the OR (95 % CI) was 2.52 (1.31-3.82), p < 0.001, after covariate adjustment. CONCLUSIONS Our results support an important association of the rs266729 (-11377 G/C) and rs822393 (-4522 C/T) polymorphism with increased risk of NAFLD. The interaction analysis showed a combined effect of rs266729 and rs822393 on NAFLD.
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Affiliation(s)
- Zhang Wei
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, No. 308 Jiefang Road, Zhenjiang, Jiangsu, 212001, China.
| | - Zhu Li-Qun
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, No. 308 Jiefang Road, Zhenjiang, Jiangsu, 212001, China
| | - Huo Xiao-Ling
- The Hospital of the 4th Division, Department of Gastroenterology, Xinjiang Production and Construction Corps, Yi'ning, 835000, China
| | - Qin Jian
- The Hospital of the 4th Division, Department of Gastroenterology, Xinjiang Production and Construction Corps, Yi'ning, 835000, China
| | - Yuan Guo-Yue
- Department of Endocrinology, The Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
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Lopez-Jaramillo P. The Role of Adiponectin in Cardiometabolic Diseases: Effects of Nutritional Interventions. J Nutr 2016; 146:422S-426S. [PMID: 26764331 DOI: 10.3945/jn.114.202432] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Accepted: 06/01/2015] [Indexed: 12/15/2022] Open
Abstract
Adiponectin is an adipocyte-derived hormone abundantly present in plasma that exerts its effects through the activation of 3 receptors. Its concentrations are negatively regulated by the accumulation of visceral fat, and clinical studies implicate hypoadiponectinemia in the pathogenesis of diabetes mellitus type 2, coronary artery disease, hypertension, and left ventricular hypertrophy. In contrast, high concentrations of adiponectin are associated with a decreased risk of coronary artery disease, with an improvement in the differentiation of preadipocytes into adipocytes, and with increased endothelial nitric oxide production. Therefore, adiponectin appears to be an important molecule involved in limiting the pathogenesis of obesity-linked disorders, and it may have potential benefits in the treatment and prevention of cardiovascular disease. Caloric restriction, moderate alcohol consumption, and consuming a Mediterranean diet increase adiponectin concentrations, and current evidence suggests a positive, dose-dependent relation between ω-3 (n-3) fatty acid intake and circulating concentrations of adiponectin. Recently, it was reported that the administration of aged garlic extract and a single food intervention with pistachios can increase adiponectin concentrations in individuals with metabolic syndrome. Moreover, the Mediterranean diet is associated with higher adiponectin concentrations. Additional studies are needed to evaluate the potential benefits of increasing adiponectin by nutritional interventions in the treatment and prevention of cardiometabolic diseases.
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Affiliation(s)
- Patricio Lopez-Jaramillo
- Metabolic Syndrome, Prediabetes, and Diabetes Clinic, Research Institute, Santander Ophthalmological Foundation Carlos Ardila Lulle Clinic (FOSCAL), and Masira Institute, Medical School, University of Santander, Bucaramanga, Colombia
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Riestra P, Gebreab SY, Xu R, Khan RJ, Bidulescu A, Correa A, Tekola-Ayele F, Davis SK. Gender-specific associations between ADIPOQ gene polymorphisms and adiponectin levels and obesity in the Jackson Heart Study cohort. BMC MEDICAL GENETICS 2015; 16:65. [PMID: 26290432 PMCID: PMC4593213 DOI: 10.1186/s12881-015-0214-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Accepted: 08/12/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND Despite the important role of adiponectin in regulating general metabolic homeostasis, analysis of genetic determinants of adiponectin and the related cardio-metabolic traits in African American population has been limited and inconsistent. Considering the high genetic admixture of African Americans and thus the important population stratification that may confound the genetic-trait associations, the objective of this work was to perform a comprehensive analysis of the associations between ADIPOQ variants and adiponectin levels and obesity phenotypes in a large African American population from the Jackson Heart Study (JHS) cohort. METHODS Genotype data was available for 2968 JHS participants (1131men; 1837women). Single Nucleotide Polymorphisms (SNPs) were selected by a Tag-SNP Approach and literature review. The genotype imputation was performed using IMPUTE2 software and reference phased data from the 1000G project. PLINK software was used for the genetic analysis. Plasma specimens were analyzed by ELISA for adiponectin levels. All analyses were controlled for population stratification assessed by Individual Proportions of European Ancestry (PEA) estimates calculated in HAPMIX using ancestry informative markers (AIMs). RESULTS We found a gender-dependent association of some ADIPOQ variants and adiponectin levels. In women four of the studied polymorphisms (rs6444174, rs16861205, rs1403697, rs7641507) were associated with adiponectin levels after Bonferroni correction and controlling for the percentage of PEA, age, annual household income and smoking. These results were consistent with the haplotype analysis. The association between the rs12495941 variant and obesity is modulated by the PEA, so that the relationship between the G allele and a higher incidence of obesity was present in those individuals within the lower PEA group. In addition we found an effect modification of obesity on the association between the ADIPOQ rs6444174 SNP and BMI so that the presence of the T allele was negatively and significantly associated with BMI only in participants with a normal weight. CONCLUSIONS In this large African American cohort, ADIPOQ variants were associated with adiponectin levels in a gender-dependent manner and the relationship of some of these variants with obesity and BMI was modulated by the PEA and obesity status respectively. This suggests that the effects of these polymorphisms on adiponectin and obesity phenotypes are subject to a strong interaction with genetic and environmental factors in African American population.
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Affiliation(s)
- Pia Riestra
- National Human Genome Research Institute, Genomics of Metabolic, Cardiovascular and Inflammatory Disease Branch, Social Epidemiology Research Unit, National Institutes of Health, 10 Center Drive, Bethesda, MD, 20892, USA.
| | - Samson Y Gebreab
- National Human Genome Research Institute, Genomics of Metabolic, Cardiovascular and Inflammatory Disease Branch, Social Epidemiology Research Unit, National Institutes of Health, 10 Center Drive, Bethesda, MD, 20892, USA.
| | - Ruihua Xu
- National Human Genome Research Institute, Genomics of Metabolic, Cardiovascular and Inflammatory Disease Branch, Social Epidemiology Research Unit, National Institutes of Health, 10 Center Drive, Bethesda, MD, 20892, USA.
| | - Rumana J Khan
- National Human Genome Research Institute, Genomics of Metabolic, Cardiovascular and Inflammatory Disease Branch, Social Epidemiology Research Unit, National Institutes of Health, 10 Center Drive, Bethesda, MD, 20892, USA.
| | - Aurelian Bidulescu
- School of Public Health, Indiana University Bloomington, 1025 E. 7th Street, Suite 111, Bloomington, IN, 47405, USA.
| | - Adolfo Correa
- Jackson Heart Study, Jackson Medical Mall, 350 West Woodrow Wilson Av., Suite 701, Jackson, MS, 39217, USA.
| | - Fasil Tekola-Ayele
- National Human Genome Research Institute, Center for Research on Genomics and Global Health, National Institutes of Health, 12 South Drive, Bethesda, MD, 20892, USA.
| | - Sharon K Davis
- National Human Genome Research Institute, Genomics of Metabolic, Cardiovascular and Inflammatory Disease Branch, Social Epidemiology Research Unit, National Institutes of Health, 10 Center Drive, Bethesda, MD, 20892, USA.
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Li Y, Yao Y, Qian X, Shi L, Zhou J, Ma Q, Yao Y. The association of adiponectin gene promoter variations with non-small cell lung cancer in a Han Chinese population. PLoS One 2015; 10:e0127751. [PMID: 26018909 PMCID: PMC4446305 DOI: 10.1371/journal.pone.0127751] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 04/20/2015] [Indexed: 11/18/2022] Open
Abstract
Recently, in vitro studies have demonstrated that adiponectin has antiangiogenic and tumor growth-limiting properties. Additionally, serum adiponectin levels have been associated with the risk of several cancers; specifically, serum adiponectin was significantly lower in lung cancer patients with advanced-stage disease. In this study, we examined the association of adiponectin gene promoter variations associated with adiponectin gene expression and plasma levels in non-small cell lung cancer (NSCLC) in a Han Chinese population. A total of 319 patients with NSCLC and 489 healthy individuals were recruited to evaluate the association of four adiponectin gene promoter single-nucleotide polymorphisms (SNPs) (SNP-12140G>A, SNP-11426A>G, SNP-11391G>A and SNP-11377C>G) with NSCLS risk. Additionally, we constructed haplotypes of these four SNPs and evaluated the association of these haplotypes with NSCLS risk. Our results showed that among these four SNPs, only SNP-12140G>A was associated with NSCLC risk (P<0.05). The haplotype analysis showed that no haplotype was associated with NSCLC after performing a Bonferroni correction (P>0.05). Additionally, an association analysis of the four SNPs stratified into pathologic stages I+II and III+IV showed that these SNPs did not exhibit significant differences between pathologic stages I+II and III+IV. Moreover, we did not observe any differences in allele and genotype frequency for these SNPs between adenocarcinoma and squamous cell carcinoma. Our results indicated that the G allele of SNP-12140 may be a risk factor for NSCLC (OR = 1.516; 95% CI: 1.098-2.094) in this Han Chinese population.
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Affiliation(s)
- Yingfu Li
- Department of Geriatrics, The No.1 Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
| | - Yueting Yao
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming, 650118, China
| | - Xu Qian
- Department of Cardiothoracic Surgery, Yan`an Hospital of Kunming, Kunming, 650051, China
| | - Li Shi
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming, 650118, China
| | - Jingxian Zhou
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming, 650118, China
| | - Qianli Ma
- Department of Thoracic Surgery, The No.3 Affiliated Hospital of Kunming Medical University, Kunming, 650118, China
| | - Yufeng Yao
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming, 650118, China
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Nadeem A, Mumtaz S, Naveed AK, Aslam M, Siddiqui A, Lodhi GM, Ahmad T. Gene-gene, gene-environment, gene-nutrient interactions and single nucleotide polymorphisms of inflammatory cytokines. World J Diabetes 2015; 6:642-647. [PMID: 25987962 PMCID: PMC4434085 DOI: 10.4239/wjd.v6.i4.642] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 01/19/2015] [Accepted: 02/11/2015] [Indexed: 02/05/2023] Open
Abstract
Inflammation plays a significant role in the etiology of type 2 diabetes mellitus (T2DM). The rise in the pro-inflammatory cytokines is the essential step in glucotoxicity and lipotoxicity induced mitochondrial injury, oxidative stress and beta cell apoptosis in T2DM. Among the recognized markers are interleukin (IL)-6, IL-1, IL-10, IL-18, tissue necrosis factor-alpha (TNF-α), C-reactive protein, resistin, adiponectin, tissue plasminogen activator, fibrinogen and heptoglobins. Diabetes mellitus has firm genetic and very strong environmental influence; exhibiting a polygenic mode of inheritance. Many single nucleotide polymorphisms (SNPs) in various genes including those of pro and anti-inflammatory cytokines have been reported as a risk for T2DM. Not all the SNPs have been confirmed by unifying results in different studies and wide variations have been reported in various ethnic groups. The inter-ethnic variations can be explained by the fact that gene expression may be regulated by gene-gene, gene-environment and gene-nutrient interactions. This review highlights the impact of these interactions on determining the role of single nucleotide polymorphism of IL-6, TNF-α, resistin and adiponectin in pathogenesis of T2DM.
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de Faria APC, Modolo R, Sabbatini AR, Barbaro NR, Corrêa NB, Brunelli V, Tanus-Santos JE, Fontana V, Moreno H. Adiponectin -11377C/G and +276G/T polymorphisms affect adiponectin levels but do not modify responsiveness to therapy in resistant hypertension. Basic Clin Pharmacol Toxicol 2014; 117:65-72. [PMID: 25546819 DOI: 10.1111/bcpt.12368] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 12/11/2014] [Indexed: 01/03/2023]
Abstract
Resistant hypertension (RHTN) is a multifactorial and polygenic disease, frequently associated with obesity. Low plasma adiponectin levels, a hormone produced by the adipose tissue, were associated with RHTN. Single nucleotide polymorphisms (SNPs) -11377C/G (rs266729) and +276G/T (rs1501299) in ADIPOQ (adiponectin gene) were associated with hypertension. This study evaluated the association between two SNPs (-11377C/G and +276G/T) and adiponectin levels in RHTN. This study comprised 109 patients with RHTN genotyped for both polymorphisms. A cross-sectional study was designed to compare features of CC homozygous versus G allele carriers for -11377C/G and GG homozygous versus T allele carriers for +276G/T. Office and ambulatory BP measurements were similar among genotypes subgroups in both SNPs as well as the markers of target organ damage (arterial stiffness, left ventricular mass index and microalbuminuria). Adiponectin concentrations were significantly higher in CC compared to G carrier for -11377C/G (CC:7.0 (4.0-10.2) versus G allele:5.5 (2.5-7.9), p = 0.04) and lower in GG compared to T carrier for +276G/T (GG:5.3 (2.3-7.7) versus T allele:7.1 (3.6-10.5), p = 0.04). Adjusting for systolic ambulatory BP, body mass index, age, gender, race and presence of type 2 diabetes, multiple linear regression analyses revealed that the minor alleles G (β-coefficient= -0.14, SE=0.07, p = 0.03) and T (β-coefficient=0.12, SE=0.06, p = 0.04) were independent predictors of adiponectin. The -11377C/G and +276G/T SNPs in ADIPOQ were associated with adiponectin levels in RHTN individuals.
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Affiliation(s)
- Ana Paula C de Faria
- Laboratory of Cardiovascular Pharmacology, Faculty of Medical Sciences, University of Campinas, Campinas, SP, Brazil
| | - Rodrigo Modolo
- Laboratory of Cardiovascular Pharmacology, Faculty of Medical Sciences, University of Campinas, Campinas, SP, Brazil
| | - Andréa R Sabbatini
- Laboratory of Cardiovascular Pharmacology, Faculty of Medical Sciences, University of Campinas, Campinas, SP, Brazil
| | - Natália R Barbaro
- Laboratory of Cardiovascular Pharmacology, Faculty of Medical Sciences, University of Campinas, Campinas, SP, Brazil
| | - Nathália B Corrêa
- Laboratory of Cardiovascular Pharmacology, Faculty of Medical Sciences, University of Campinas, Campinas, SP, Brazil
| | - Veridiana Brunelli
- Laboratory of Cardiovascular Pharmacology, Faculty of Medical Sciences, University of Campinas, Campinas, SP, Brazil
| | - José E Tanus-Santos
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Vanessa Fontana
- Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, SP, Brazil
| | - Heitor Moreno
- Laboratory of Cardiovascular Pharmacology, Faculty of Medical Sciences, University of Campinas, Campinas, SP, Brazil
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Ou Y, Chen P, Zhou Z, Li C, Liu J, Tajima K, Guo J, Cao J, Wang H. Associations between variants on ADIPOQ and ADIPOR1 with colorectal cancer risk: a Chinese case-control study and updated meta-analysis. BMC MEDICAL GENETICS 2014; 15:137. [PMID: 25516230 PMCID: PMC4411774 DOI: 10.1186/s12881-014-0137-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 12/11/2014] [Indexed: 12/11/2022]
Abstract
Background Epidemiological studies have suggested that variants on adiponectin (ADIPOQ) and its receptor ADIPOR1 (adiponectin receptor 1) are associated with colorectal cancer (CRC) risk; however, the results were inconclusive. The aim of the study was to evaluate the associations between the variants on ADIPOQ and ADIPOR1 and the CRC risk with a hospital-based case-control study in the Chinese population along with meta-analysis of available epidemiological studies. Methods With a hospital-based case-control study of 341 cases and 727 controls, the associations between the common variants on ADIPOQ (rs266729, rs822395, rs2241766 and rs1501299) and ADIPOR1 (rs1342387 and rs12733285) and CRC susceptibility were evaluated. Meta-analysis of the published epidemiological studies was performed to investigate the associations between the variants and CRC risk. Results For the population study, we found that variant rs1342387 of ADIPOR1 was associated with a reduced risk for CRC [adjusted odds ratio (OR) = 0.74, 95% confidential intervals (95% CI) = 0.57-0.97; CT/TT vs. CC]. The meta-analysis also suggested a significant association for rs1342387 and CRC risk; the pooled OR was 0.79 (95% CI = 0.66-0.95) for the CT/TT carriers compared to CC homozygotes under the random-effects model (Q = 8.06, df = 4, P = 0.089; I2 = 50.4%). The case-control study found no significant association for variants rs266729, rs822395, rs2241766, and rs1501299 on ADIPOQ or variant rs12733285 on ADIPOR1 and CRC susceptibility, which were consistent with results from the meta-analysis studies. Conclusions These data suggested that variant rs1342387 on ADIPOR1 may be a novel CRC susceptibility factor. Electronic supplementary material The online version of this article (doi:10.1186/s12881-014-0137-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yiyi Ou
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, P. R China. .,Medical Department, The General Hospital of Navy, Beijing, 100037, P. R China.
| | - Peizhan Chen
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, P. R China.
| | - Ziyuan Zhou
- Toxicology Institute, Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, College of Preventive Medicine; Third Military Medical University, Chongqing, 400038, P. R. China. .,Department of Environment Health, College of Preventive Medicine; Third Military Medical University, Chongqing, 400038, P. R. China.
| | - Chenglin Li
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, P. R China.
| | - Jinyi Liu
- Toxicology Institute, Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, College of Preventive Medicine; Third Military Medical University, Chongqing, 400038, P. R. China.
| | - Kazuo Tajima
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan.
| | - Junsheng Guo
- Department of Military Hygiene, Faculty of Naval Medicine, Second Military Medical University, Shanghai, 200433, P. R. China.
| | - Jia Cao
- Toxicology Institute, Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, College of Preventive Medicine; Third Military Medical University, Chongqing, 400038, P. R. China.
| | - Hui Wang
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, P. R China. .,Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing, 100021, P. R. China. .,School of Life Science and Technology, ShanghaiTech University, Shanghai, 200031, P. R. China.
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Lu JF, Zhou Y, Huang GH, Jiang HX, Hu BL, Qin SY. Association of ADIPOQ polymorphisms with obesity risk: A meta-analysis. Hum Immunol 2014; 75:1062-8. [DOI: 10.1016/j.humimm.2014.09.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 09/02/2014] [Accepted: 09/02/2014] [Indexed: 02/03/2023]
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Wu X, Chen P, Ou Y, Liu J, Li C, Wang H, Qiang F. Association of variants on ADIPOQ and AdipoR1 and the prognosis of gastric cancer patients after gastrectomy treatment. Mol Biol Rep 2014; 42:355-61. [PMID: 25270251 DOI: 10.1007/s11033-014-3775-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Accepted: 09/20/2014] [Indexed: 01/12/2023]
Abstract
Adiponectin is a protein hormone secreted exclusively by adipocytes and it is responsible for insulin sensitization in the human body. Deregulation of adiponectin and its downstream signaling pathway genes have been found to be involved in the gastric cancer carcinogenesis; however, whether the variants on adiponectin (ADIPOQ) and adiponectin receptor 1 (ADIPOR1) affect the prognosis of gastric cancer patients are still unknown. Here we have recruited 455 gastric cancer patients, who have received the gastrectomy treatment to evaluate the prognostic effects of variants on ADIPOQ (rs266729 and rs822395) and AdipoR1 (rs12733285 and rs1342387) for the gastric cancer patients. No significant association between the four variants and the overall survival of the gastric cancer patients was found. However, for those patients without a previous history of alcohol drinking, the rs266729 GG/CG genotype carriers showed a significantly decreased gastric cancer mortality compared to homogeneity CC patients (HR 0.74, 95 % CI 0.56-0.97; p = 0.032) after adjustment for variants age, sex, smoking status, tumor stage, tumor location and post-surgery chemotherapy. No significant association between the variant rs266729 genotypes and overall survival for the gastric cancer patients with an alcohol drinking habit. These data suggested that the variant rs266729 was an independent prognostic factor for the never drinking gastric cancer patients who received surgical treatment.
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Affiliation(s)
- Xuming Wu
- Nantong Tumor Hospital, Nantong, 226000, Jiangsu, People's Republic of China
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Cheung CYY, Hui EYL, Cheung BMY, Woo YC, Xu A, Fong CHY, Ong KL, Yeung CY, Janus ED, Tse HF, Sham PC, Lam KSL. Adiponectin gene variants and the risk of coronary heart disease: a 16-year longitudinal study. Eur J Endocrinol 2014; 171:107-15. [PMID: 24760538 DOI: 10.1530/eje-14-0079] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Circulating adiponectin levels have been shown to be associated with a risk of coronary heart disease (CHD). However, its primary role in protecting against the development of CHD remains controversial due to conflicting observations in prospective studies. To gain further insight into the primary role of adiponectin, our major objective was to investigate the relationship between single nucleotide polymorphisms (SNPs) of the adiponectin gene (ADIPOQ) and incident CHD in a population-based cohort with no CHD at baseline. DESIGN AND METHODS We conducted a 16-year longitudinal study in 2196 subjects from the Hong Kong Cardiovascular Risk Factor Prevalence Study (CRISPS). During 33 862 person-years of follow-up, 184 subjects developed CHD (cumulative incidence rate=5.4 per 1000 person-years). Nine ADIPOQ SNPs with potential functional relevance or shown to be associated with adiponectin levels and/or CHD were genotyped. RESULTS Among the nine ADIPOQ SNPs, +276G>T (rs1501299) was independently associated with incident CHD in men but not in women, even after adjustments for traditional cardiovascular risk factors (Padjusted=5.5×10(-3) to 0.023; hazard ratio=1.39-1.54). Furthermore, there was a significant association of the T allele of +276G>T with a lower adiponectin level (P=0.027; β (95% CI)=-0.05 (-0.10, -0.01). CONCLUSIONS This study demonstrated that +276G>T may be an independent predictor of CHD development. Our findings suggest that low adiponectin levels, as may be influenced by +276G>T, confer a higher risk of CHD, in keeping with a role of hypoadiponectinaemia in the development of CHD in the general population.
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Affiliation(s)
- Chloe Y Y Cheung
- Department of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, Australia
| | - Elaine Y L Hui
- Department of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, AustraliaDepartment of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, Australia
| | - Bernard M Y Cheung
- Department of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, Australia
| | - Y C Woo
- Department of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, Australia
| | - Aimin Xu
- Department of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, AustraliaDepartment of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, Australia
| | - Carol H Y Fong
- Department of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, Australia
| | - K L Ong
- Department of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, AustraliaDepartment of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, Australia
| | - C Y Yeung
- Department of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, Australia
| | - Edward D Janus
- Department of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, Australia
| | - Hung-Fat Tse
- Department of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, AustraliaDepartment of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, Australia
| | - Pak C Sham
- Department of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, AustraliaDepartment of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, Australia
| | - Karen S L Lam
- Department of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, AustraliaDepartment of MedicineDepartment of PsychiatryResearch Centre of HeartBrain, Hormone and Healthy AgingLi Ka Shing Faculty of MedicineCentre for Genomic Sciences, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, Hong KongCentre for Vascular ResearchUniversity of New South Wales, Sydney, New South Wales 2052, AustraliaDepartment of MedicineNorthwest Academic Centre, Western Hospital, The University of Melbourne, Melbourne, Victoria, Australia
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Wang J, Guo XF, Yu SJ, Song J, Zhang JX, Cao Z, Wang J, Ji MY, Dong WG. Adiponectin polymorphisms and non-alcoholic fatty liver disease risk: a meta-analysis. J Gastroenterol Hepatol 2014; 29:1396-405. [PMID: 24548122 DOI: 10.1111/jgh.12562] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/30/2014] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIM The adiponectin polymorphism has been implicated in susceptibility to non-alcoholic fatty liver disease (NAFLD), but the results remain inconclusive. The aim of this meta-analysis is to investigate the association between adiponectin polymorphisms and NAFLD risk. METHODS All eligible case-control studies published up to September 2013 were identified by searching PubMed, Web of Science, and CNKI. Effect sizes of odds ratio (OR) and 95% confidence interval (95% CI) were calculated by using a fixed- or random-effect model. RESULTS A total of 10 case-control studies were included; of those, there were nine studies (1223 cases and 1580 controls) for +45T>G polymorphism, seven studies (876 cases and 989 controls) for +276G>T polymorphism, and three studies (299 cases and 383 controls) for -11337C>G polymorphism. Overall, a significantly increased risk was found for +45T>G and -11377C>G polymorphism (+45T>G: OR = 1.45, 95% CI: 1.06-2.00 for recessive model, OR = 1.48, 95% CI: 1.07-2.06 for GG vs TT; -11377C>G: OR = 1.52, 95% CI: 1.10-2.09 for dominant model, OR = 3.88, 95% CI: 1.29-11.68 for GG vs CC), while for +276G>T polymorphism, we found a significantly decreased risk between them (OR = 0.65, 95% CI: 0.45-0.94 for recessive model, OR = 0.58, 95% CI: 0.40-0.84 for TT vs GG). In subgroup analysis by ethnicity, significant association was detected among Asians for +276G>T polymorphism, but not for +45T>G polymorphism. Besides, none of the three adiponectin polymorphisms was associated with the serum adiponectin levels. CONCLUSION This meta-analysis suggests that adiponectin +45T>G and -11377C>G polymorphisms might be a risk factor for NAFLD, while +276G>T polymorphism may be a protective factor for NAFLD among Asians.
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Affiliation(s)
- Jun Wang
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
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Claussnitzer M, Dankel SN, Klocke B, Grallert H, Glunk V, Berulava T, Lee H, Oskolkov N, Fadista J, Ehlers K, Wahl S, Hoffmann C, Qian K, Rönn T, Riess H, Müller-Nurasyid M, Bretschneider N, Schroeder T, Skurk T, Horsthemke B, Spieler D, Klingenspor M, Seifert M, Kern MJ, Mejhert N, Dahlman I, Hansson O, Hauck SM, Blüher M, Arner P, Groop L, Illig T, Suhre K, Hsu YH, Mellgren G, Hauner H, Laumen H. Leveraging cross-species transcription factor binding site patterns: from diabetes risk loci to disease mechanisms. Cell 2014; 156:343-58. [PMID: 24439387 DOI: 10.1016/j.cell.2013.10.058] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Revised: 09/05/2013] [Accepted: 10/30/2013] [Indexed: 10/25/2022]
Abstract
Genome-wide association studies have revealed numerous risk loci associated with diverse diseases. However, identification of disease-causing variants within association loci remains a major challenge. Divergence in gene expression due to cis-regulatory variants in noncoding regions is central to disease susceptibility. We show that integrative computational analysis of phylogenetic conservation with a complexity assessment of co-occurring transcription factor binding sites (TFBS) can identify cis-regulatory variants and elucidate their mechanistic role in disease. Analysis of established type 2 diabetes risk loci revealed a striking clustering of distinct homeobox TFBS. We identified the PRRX1 homeobox factor as a repressor of PPARG2 expression in adipose cells and demonstrate its adverse effect on lipid metabolism and systemic insulin sensitivity, dependent on the rs4684847 risk allele that triggers PRRX1 binding. Thus, cross-species conservation analysis at the level of co-occurring TFBS provides a valuable contribution to the translation of genetic association signals to disease-related molecular mechanisms.
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Affiliation(s)
- Melina Claussnitzer
- Chair of Nutritional Medicine, Technische Universität München, Else Kröner-Fresenius-Center for Nutritional Medicine, 85350 Freising-Weihenstephan, Germany; Nutritional Medicine Unit, ZIEL-Research Center for Nutrition and Food Sciences, Technische Universität München, 85350 Freising-Weihenstephan, Germany; German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany; Clinical Cooperation Group Nutrigenomics and Type 2 Diabetes, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany and Technische Universität München, 85350 Freising-Weihenstephan, Germany; Hebrew SeniorLife Institute for Aging Research, Harvard Medical School, Boston, MA 02131, USA.
| | - Simon N Dankel
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; K.G. Jebsen Center for Diabetes Research, Department of Clinical Science, University of Bergen, N-5021 Bergen, Norway; Hormone Laboratory, Haukeland University Hospital, 5021 Bergen, Norway
| | | | - Harald Grallert
- German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany; Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, 85764 Neuherberg, Germany
| | - Viktoria Glunk
- Chair of Nutritional Medicine, Technische Universität München, Else Kröner-Fresenius-Center for Nutritional Medicine, 85350 Freising-Weihenstephan, Germany; Nutritional Medicine Unit, ZIEL-Research Center for Nutrition and Food Sciences, Technische Universität München, 85350 Freising-Weihenstephan, Germany; German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany; Clinical Cooperation Group Nutrigenomics and Type 2 Diabetes, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany and Technische Universität München, 85350 Freising-Weihenstephan, Germany
| | - Tea Berulava
- Institut für Humangenetik, Universitätsklinikum Essen, Universität-Duisburg-Essen, 45147 Essen, Germany
| | - Heekyoung Lee
- Chair of Nutritional Medicine, Technische Universität München, Else Kröner-Fresenius-Center for Nutritional Medicine, 85350 Freising-Weihenstephan, Germany; Nutritional Medicine Unit, ZIEL-Research Center for Nutrition and Food Sciences, Technische Universität München, 85350 Freising-Weihenstephan, Germany; German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany; Clinical Cooperation Group Nutrigenomics and Type 2 Diabetes, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany and Technische Universität München, 85350 Freising-Weihenstephan, Germany
| | - Nikolay Oskolkov
- Diabetes and Endocrinology Research Unit, Department of Clinical Sciences, Lund University, Malmö 20502, Sweden
| | - Joao Fadista
- Diabetes and Endocrinology Research Unit, Department of Clinical Sciences, Lund University, Malmö 20502, Sweden
| | - Kerstin Ehlers
- Chair of Nutritional Medicine, Technische Universität München, Else Kröner-Fresenius-Center for Nutritional Medicine, 85350 Freising-Weihenstephan, Germany; Nutritional Medicine Unit, ZIEL-Research Center for Nutrition and Food Sciences, Technische Universität München, 85350 Freising-Weihenstephan, Germany; German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany; Clinical Cooperation Group Nutrigenomics and Type 2 Diabetes, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany and Technische Universität München, 85350 Freising-Weihenstephan, Germany
| | - Simone Wahl
- German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany; Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, 85764 Neuherberg, Germany
| | - Christoph Hoffmann
- Nutritional Medicine Unit, ZIEL-Research Center for Nutrition and Food Sciences, Technische Universität München, 85350 Freising-Weihenstephan, Germany; Chair of Molecular Nutritional Medicine, Technische Universität München, Else Kröner-Fresenius-Center for Nutritional Medicine, 85350 Freising-Weihenstephan, Germany
| | - Kun Qian
- Chair of Nutritional Medicine, Technische Universität München, Else Kröner-Fresenius-Center for Nutritional Medicine, 85350 Freising-Weihenstephan, Germany; Nutritional Medicine Unit, ZIEL-Research Center for Nutrition and Food Sciences, Technische Universität München, 85350 Freising-Weihenstephan, Germany; German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany; Clinical Cooperation Group Nutrigenomics and Type 2 Diabetes, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany and Technische Universität München, 85350 Freising-Weihenstephan, Germany
| | - Tina Rönn
- Diabetes and Endocrinology Research Unit, Department of Clinical Sciences, Lund University, Malmö 20502, Sweden
| | - Helene Riess
- Department of Internal Medicine II-Cardiology, University of Ulm Medical Center, 89081 Ulm, Germany; Institute of Epidemiology II, Helmholtz Zentrum München-German Research Center for Environmental Health, 85764 Neuherberg, Germany
| | - Martina Müller-Nurasyid
- Institute of Genetic Epidemiology, Helmholtz Zentrum München-German Research Center for Environmental Health, 85764 Neuherberg, Germany; Department of Medicine I, University Hospital Grosshadern, Ludwig-Maximilians-Universität, 81377 Munich, Germany; Institute of Medical Informatics, Biometry and Epidemiology, Chair of Genetic Epidemiology, Ludwig-Maximilians-Universität, 81377 Munich, Germany
| | | | - Timm Schroeder
- Research Unit Stem Cell Dynamics, Helmholtz Center Munich-German Research Center for Environmental Health GmbH, 85764 Neuherberg, Germany; Department of Biosystems Science and Engineering (D-BSSE), ETH Zurich, 4058 Basel, Switzerland
| | - Thomas Skurk
- Chair of Nutritional Medicine, Technische Universität München, Else Kröner-Fresenius-Center for Nutritional Medicine, 85350 Freising-Weihenstephan, Germany; Nutritional Medicine Unit, ZIEL-Research Center for Nutrition and Food Sciences, Technische Universität München, 85350 Freising-Weihenstephan, Germany; Else Kröner-Fresenius-Center for Nutritional Medicine, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | - Bernhard Horsthemke
- Institut für Humangenetik, Universitätsklinikum Essen, Universität-Duisburg-Essen, 45147 Essen, Germany
| | | | - Derek Spieler
- Institute of Human Genetics, Helmholtz Zentrum München, 85764 Neuherberg, German Research Center for Environmental Health, Germany; Department of Neurology, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | - Martin Klingenspor
- Nutritional Medicine Unit, ZIEL-Research Center for Nutrition and Food Sciences, Technische Universität München, 85350 Freising-Weihenstephan, Germany; Chair of Molecular Nutritional Medicine, Technische Universität München, Else Kröner-Fresenius-Center for Nutritional Medicine, 85350 Freising-Weihenstephan, Germany
| | | | - Michael J Kern
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Niklas Mejhert
- Department of Medicine, Karolinska Institutet, Center for Endocrinology and Metabolism, Karolinska University Hospital Huddinge, SE-141 86 Stockholm, Sweden
| | - Ingrid Dahlman
- Department of Medicine, Karolinska Institutet, Center for Endocrinology and Metabolism, Karolinska University Hospital Huddinge, SE-141 86 Stockholm, Sweden
| | - Ola Hansson
- Diabetes and Endocrinology Research Unit, Department of Clinical Sciences, Lund University, Malmö 20502, Sweden
| | - Stefanie M Hauck
- German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany; Research Unit Protein Science, Helmholtz Zentrum München, 85764 Neuherberg, Germany
| | - Matthias Blüher
- Department of Medicine, University of Leipzig, 04103 Leipzig, Germany
| | - Peter Arner
- Department of Medicine, Karolinska Institutet, Center for Endocrinology and Metabolism, Karolinska University Hospital Huddinge, SE-141 86 Stockholm, Sweden
| | - Leif Groop
- Diabetes and Endocrinology Research Unit, Department of Clinical Sciences, Lund University, Malmö 20502, Sweden
| | - Thomas Illig
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, 85764 Neuherberg, Germany; Hanover Unified Biobank, Hanover Medical School, 30625 Hanover, Germany
| | - Karsten Suhre
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany; Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Education City, Qatar Foundation, PO Box 24144, Doha, Qatar
| | - Yi-Hsiang Hsu
- Hebrew SeniorLife Institute for Aging Research, Harvard Medical School, Boston, MA 02131, USA; Molecular and Integrative Physiological Sciences, Harvard School of Public Health, Boston, MA 02115, USA
| | - Gunnar Mellgren
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; K.G. Jebsen Center for Diabetes Research, Department of Clinical Science, University of Bergen, N-5021 Bergen, Norway; Hormone Laboratory, Haukeland University Hospital, 5021 Bergen, Norway
| | - Hans Hauner
- Chair of Nutritional Medicine, Technische Universität München, Else Kröner-Fresenius-Center for Nutritional Medicine, 85350 Freising-Weihenstephan, Germany; Nutritional Medicine Unit, ZIEL-Research Center for Nutrition and Food Sciences, Technische Universität München, 85350 Freising-Weihenstephan, Germany; German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany; Clinical Cooperation Group Nutrigenomics and Type 2 Diabetes, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany and Technische Universität München, 85350 Freising-Weihenstephan, Germany; Else Kröner-Fresenius-Center for Nutritional Medicine, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | - Helmut Laumen
- Chair of Nutritional Medicine, Technische Universität München, Else Kröner-Fresenius-Center for Nutritional Medicine, 85350 Freising-Weihenstephan, Germany; Nutritional Medicine Unit, ZIEL-Research Center for Nutrition and Food Sciences, Technische Universität München, 85350 Freising-Weihenstephan, Germany; German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany; Clinical Cooperation Group Nutrigenomics and Type 2 Diabetes, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany and Technische Universität München, 85350 Freising-Weihenstephan, Germany; Institute of Experimental Genetics, Helmholtz Zentrum München, Neuherberg 85764, Germany.
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Amano H, Murata K, Matsunaga H, Tanaka K, Yoshioka K, Kobayashi T, Ishida J, Fukamizu A, Sugiyama F, Sudo T, Kimura S, Tatsumi K, Kasuya Y. p38 Mitogen-activated protein kinase accelerates emphysema in mouse model of chronic obstructive pulmonary disease. J Recept Signal Transduct Res 2014; 34:299-306. [PMID: 24593255 DOI: 10.3109/10799893.2014.896380] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT There are few short-term mouse models of chronic obstructive pulmonary disease (COPD) mimicking the human disease. In addition, p38 is recently recognized as a target for the treatment of COPD. However, the precise mechanism how p38 contributes to the pathogenesis of COPD is still unknown. OBJECTIVE We attempted to create a new mouse model for COPD by intra-tracheal administration of a mixture of lipopolysaccharide (LPS) and cigarette smoke solution (CSS), and investigated the importance of the p38 mitogen-activated protein kinase (p38) pathway in the pathogenesis of COPD. METHODS Mice were administered LPS + CSS once a day on days 0-4 and 7-11. Thereafter, CSS alone was administered to mice once a day on days 14-18. On day 28, histopathological changes of the lung were evaluated, and bronchoalveolar lavage fluid (BALF) was subjected to western blot array for cytokines. Transgenic (TG) mice expressing a constitutive-active form of MKK6, a p38-specific activator in the lung, were subjected to our experimental protocol of COPD model. RESULTS LPS + CSS administration induced enlargement of alveolar air spaces and destruction of lung parenchyma. BALF analyses of the LPS + CSS group revealed an increase in expression levels of several cytokines involved in the pathogenesis of human COPD. These results suggest that our experimental protocol can induce COPD in mice. Likewise, histopathological findings of the lung and induction of cytokines in BALF from MKK6 c.a.-TG mice were more marked than those in WT mice. CONCLUSION In a new experimental COPD mouse model, p38 accelerates the development of emphysema.
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28
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Arikoglu H, Ozdemir H, Kaya DE, Ipekci SH, Arslan A, Kayis SA, Gonen MS. The Adiponectin variants contribute to the genetic background of type 2 diabetes in Turkish population. Gene 2014. [DOI: 10.1016/j.gene.2013.10.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Lin Z, Huang G, Zhang J, Lin X. Adiponectin gene polymorphisms and susceptibility to diabetic nephropathy: a meta-analysis. Ren Fail 2013; 36:478-87. [PMID: 24344808 DOI: 10.3109/0886022x.2013.868319] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Adiponectin (ADIPOQ) plays an important role in the pathogenesis of diabetic nephropathy (DN) and previous studies regarding the association between ADIPOQ polymorphisms and DN risk reported conflicting results. To derive a more precise estimation of this association, we performed a meta-analysis to assess the association between four ADIPOQ polymorphisms [-11391G > A (rs17300539), -11377C > G (rs266729), +45T > G (rs2241766), and +276G > T (rs1501299)] and risk for DN. Odds ratios (ORs) with corresponding 95% confidence intervals (95% CIs) were pooled to assess the association between four aforementioned polymorphisms and susceptibility to DN. Based on the included criteria, we selected 13 articles, among which 7 studies (cases/controls: 2749/7585) for -11391G > A, 8 studies for -11377C > G (3074/3842), 9 studies for +45T > G (2654/7710), and 10 studies for +276G > T (2812/7821), respectively. Our meta-analysis indicated no evidence heterogeneity among the included studies; thus, the fixed-effects model was used. Overall, there was an association between ADIPOQ -11391A allele with increased DN risk (OR = 1.186, 95% CI: 1.051-1.338, p = 0.006). Subgroup by ethnicity suggested significant association between +45T > G polymorphism and DN risk among Caucasians (OR = 1.122, 95% CI: 1.007-1.250, p = 0.038). Sensitivity analysis suggested exclusion of any single study did not materially alter the overall pooled ORs above. Future studies are needed to validate these findings.
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Affiliation(s)
- Zi Lin
- Department of Endocrinology, Fujian Institute of Endocrinology, Union Hospital of Fujian Medical University , Fuzhou , China
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An SS, Palmer ND, Hanley AJG, Ziegler JT, Brown WM, Freedman BI, Register TC, Rotter JI, Guo X, Chen YDI, Wagenknecht LE, Langefeld CD, Bowden DW. Genetic analysis of adiponectin variation and its association with type 2 diabetes in African Americans. Obesity (Silver Spring) 2013; 21:E721-9. [PMID: 23512866 PMCID: PMC3690163 DOI: 10.1002/oby.20419] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Accepted: 02/04/2013] [Indexed: 01/02/2023]
Abstract
OBJECTIVE Adiponectin is an adipocytokine that has been implicated in a variety of metabolic disorders, including T2D and cardiovascular disease. Studies evaluating genetic variants in ADIPOQ have been contradictory when testing association with T2D in different ethnic groups. DESIGN AND METHODS In this study, 18 SNPs in ADIPOQ were tested for association with plasma adiponectin levels and diabetes status. SNPs were examined in two independent African-American cohorts (nmax = 1,116) from the Insulin Resistance Atherosclerosis Family Study (IRASFS) and the African American-Diabetes Heart Study (AA-DHS). RESULTS Five polymorphisms were nominally associated with plasma adiponectin levels in the meta-analysis (P = 0.035-1.02 × 10(-6) ) including a low frequency arginine to cysteine mutation (R55C) which reduced plasma adiponectin levels to <15% of the mean. Variants were then tested for association with T2D in a meta-analysis of these and the Wake Forest T2D case-control study (n = 3,233 T2D, 2645 non-T2D). Association with T2D was not observed (P ≥ 0.08), suggesting limited influence of ADIPOQ variants on T2D risk. CONCLUSIONS Despite identification of variants associated with adiponectin levels, a detailed genetic analysis of ADIPOQ revealed no association with T2D risk. This puts into question the role of adiponectin in T2D pathogenesis: whether low adiponectin levels are truly causal for or rather a consequence.
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Affiliation(s)
- S. Sandy An
- Department of Biochemistry, Wake Forest School of Medicine,
Winston-Salem, NC
- Center for Genomics and Personalized Medicine Research, Wake Forest
School of Medicine, Winston-Salem, NC
- Center for Diabetes Research, Wake Forest School of Medicine,
Winston-Salem, NC
| | - Nicholette D. Palmer
- Department of Biochemistry, Wake Forest School of Medicine,
Winston-Salem, NC
- Center for Genomics and Personalized Medicine Research, Wake Forest
School of Medicine, Winston-Salem, NC
- Center for Diabetes Research, Wake Forest School of Medicine,
Winston-Salem, NC
| | - Anthony J. G. Hanley
- Nutritional Sciences, Medicine, and Dalla Lana School of Public
Health, University of Toronto, Toronto, Canada
| | - Julie T. Ziegler
- Department of Biostatistical Sciences, Wake Forest School of
Medicine, Winston-Salem, NC
| | - W. Mark Brown
- Department of Biostatistical Sciences, Wake Forest School of
Medicine, Winston-Salem, NC
| | - Barry I. Freedman
- Department of Internal Medicine, Wake Forest School of Medicine,
Winston-Salem, NC
| | - Thomas C. Register
- Department of Pathology, Wake Forest School of Medicine,
Winston-Salem, NC
| | - Jerome I. Rotter
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles,
CA
| | - Xiuqing Guo
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles,
CA
| | - Y.-D. Ida Chen
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles,
CA
| | - Lynne E. Wagenknecht
- Division of Public Health Sciences, Wake Forest School of Medicine,
Winston-Salem, NC
| | - Carl D. Langefeld
- Department of Biostatistical Sciences, Wake Forest School of
Medicine, Winston-Salem, NC
| | - Donald W. Bowden
- Department of Biochemistry, Wake Forest School of Medicine,
Winston-Salem, NC
- Center for Genomics and Personalized Medicine Research, Wake Forest
School of Medicine, Winston-Salem, NC
- Center for Diabetes Research, Wake Forest School of Medicine,
Winston-Salem, NC
- Department of Internal Medicine, Wake Forest School of Medicine,
Winston-Salem, NC
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The rs266729 single-nucleotide polymorphism in the adiponectin gene shows association with gestational diabetes. Arch Gynecol Obstet 2013; 289:743-8. [PMID: 24068295 DOI: 10.1007/s00404-013-3029-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Accepted: 09/10/2013] [Indexed: 02/08/2023]
Abstract
AIM Gestational diabetes mellitus (GDM) is a condition of impaired glucose tolerance during pregnancy in women without previous diagnosis of diabetes. It is associated with serious complications for both mother and child in the pre- and postnatal period. Moreover, women with GDM are at an increased risk of developing type 2 diabetes. Adiponectin is an important factor involved in the regulation of both carbohydrate and lipid metabolism. Polymorphisms in its gene (ADIPOQ) are known to affect the individual's predisposition to metabolic syndrome and type 2 diabetes. The aim of the current study was to investigate the possible association between three common single-nucleotide polymorphisms in ADIPOQ and gestational diabetes. METHODS A total of 394 individuals were recruited to the study-130 pregnant women with GDM, 130 pregnant women without glucose intolerance and 134 female population controls. All subjects were genotyped for rs266729, rs2241766 and rs1501299 in the ADIPOQ gene. RESULTS A significant association with the disease was observed for rs266729 (p = 0.0037). The rare G allele was found to be over-represented among controls (pregnant, population and pooled). While no association was found for rs2241766 and rs1501299, a GTG haplotype formed by the three polymorphisms was found to be more common among controls (0.004). CONCLUSION The adiponectin promoter polymorphism rs266729 is associated with gestational diabetes. The minor G allele appears to confer protection against pregnancy-related diabetes mellitus. This effect is probably due to the influence of the variant on the adiponectin transcription regulation during gestation.
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Ramya K, Ayyappa KA, Ghosh S, Mohan V, Radha V. Genetic association of ADIPOQ gene variants with type 2 diabetes, obesity and serum adiponectin levels in south Indian population. Gene 2013; 532:253-62. [PMID: 24055485 DOI: 10.1016/j.gene.2013.09.012] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 08/28/2013] [Accepted: 09/04/2013] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To investigate the genetic association of eight variants of the adiponectin gene with type 2 diabetes mellitus (T2DM), obesity and serum adiponectin level in the south Indian population. METHODS The study comprised of 1100 normal glucose tolerant (NGT) and 1100 type 2 diabetic, unrelated subjects randomly selected from the Chennai Urban Rural Epidemiology Study (CURES), in southern India. Fasting serum adiponectin levels were measured by radioimmunoassay. The variants were screened by polymerase chain reaction-restriction fragment length polymorphism. Linkage disequilibrium was estimated from the estimates of haplotype frequencies. RESULTS Of the 8 variants, four SNPs namely, +276 G/T (rs1501299), -4522 C/T (rs822393), -11365 C/G (rs266729), and +712 G/A (rs3774261) were significantly associated with T2DM in our study population. The -3971 A/G (rs822396) and -11391 G/A (rs17300539) SNPs' association with T2DM diabetes was mediated through obesity (where the association with type 2 diabetes was lost after adjusting for BMI). There was an independent association of +276 G/T (rs1501299) and -3971 A/G (rs822396) SNPs with generalized obesity and +349 A/G (rs2241767) with central obesity. Four SNPs, -3971 A/G (rs822396), +276 G/T (rs1501299), -4522 C/T (rs822393) and Y111H T/C (rs17366743) were significantly associated with hypoadiponectinemia. The haplotypes GCCATGAAT and AGCGTGGGT conferred lower risk of T2DM in this south Indian population. CONCLUSION The adiponectin gene variants and haplotype contribute to the genetic risk towards the development of type 2 diabetes, obesity and hypoadiponectinemia in the south Indian population.
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Affiliation(s)
- Kandaswamy Ramya
- Madras Diabetes Research Foundation-ICMR Advanced Centre for Genomics of Type 2 Diabetes and Dr. Mohan's Diabetes Specialities Centre, Gopalapuram, Chennai 600086, India
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Cox AJ, Lambird JE, An SS, Register TC, Langefeld CD, Carr JJ, Freedman BI, Bowden DW. Variants in adiponectin signaling pathway genes show little association with subclinical CVD in the diabetes heart study. Obesity (Silver Spring) 2013; 21:E456-62. [PMID: 23670978 DOI: 10.1002/oby.20184] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Accepted: 11/10/2012] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Understanding the interplay between adiposity, inflammation, and cardiovascular complications in type 2 diabetes mellitus (T2DM) remains a challenge. Signaling from adipocytes is considered important in this context. Adiponectin is the most abundant adipocytokine and has been associated with various measures of cardiovascular disease (CVD). This study examines the relationships between genetic variants in the adiponectin (ADIPOQ) and adiponectin-related signaling pathway genes and measures of subclinical CVD (vascular calcified plaque and carotid intima-media thickness), plasma lipids, and inflammation in T2DM. DESIGN AND METHODS Single-nucleotide polymorphisms (SNPs) in ADIPOQ (n = 45), SNPs tagging ADIPOR1 (n = 6), APIPOR2 (n = 8), APPL1 (n = 6) and known rare coding variants in KNG1 (n = 3) and LYZL1 (n = 3) were genotyped in 1220 European Americans from the family-based Diabetes Heart Study. Associations between SNPs and phenotypes of interest were assessed using a variance components analysis with adjustment for age, sex, T2DM-affected status, and body mass index. RESULTS There was minimal evidence of association between SNPs in the adiponectin signaling pathway genes and measures of calcified plaque; eight of the 71 SNPs showed evidence of association with subclinical CVD (P = 0.007-0.046) but not with other phenotypes examined. Nine additional SNPs were associated with at least one of the plasma lipid measures (P = 0.008-0.05). CONCLUSION Findings from this study do not support a significant role for variants in the adiponectin signaling pathway genes in contributing to risk for vascular calcification in T2DM. However, further understanding the interplay between adiposity, plasma lipids, and inflammation may prove important in the prediction and management of cardiovascular complications in T2DM.
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Affiliation(s)
- Amanda J Cox
- Center for Human Genomics, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA; Center for Diabetes Research, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA; Department of Biochemistry, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
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Causal relationship between adiponectin and metabolic traits: a Mendelian randomization study in a multiethnic population. PLoS One 2013; 8:e66808. [PMID: 23826141 PMCID: PMC3691277 DOI: 10.1371/journal.pone.0066808] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Accepted: 05/13/2013] [Indexed: 12/21/2022] Open
Abstract
Background Adiponectin, a secretagogue exclusively produced by adipocytes, has been associated with metabolic features, but its role in the development of the metabolic syndrome remains unclear. Objectives We investigated the association between serum adiponectin level and metabolic traits, using both observational and genetic epidemiologic approaches in a multiethnic population assembled in Canada. Methods Clinical data and serum adiponectin level were collected in 1,157 participants of the SHARE/SHARE-AP studies. Participants were genotyped for the functional rs266729 and rs1260326 SNPs in ADIPOQ and GCKR genes. Results Adiponectin level was positively associated with HDL cholesterol and negatively associated with body mass index, waist-to-hip ratio, triglycerides, fasting glucose, fasting insulin, systolic and diastolic pressure (all P<0.002). The rs266729 minor G allele was associated with lower adiponectin and higher HOMA-IR (P = 0.004 and 0.003, respectively). The association between rs266729 SNP and HOMA-IR was no longer significant after adjustment for adiponectin concentration (P = 0.10). The rs266729 SNP was associated with HOMA-IR to an extent that exceeded its effect on adiponectin level (0.15 SD 95% C.I. [0.06, 0.24], P<0.001). There was no significant interaction between rs266729 SNP and ethnicity on adiponectin or HOMA-IR. In contrast, the SNP rs1260326 in GCKR was associated with HOMA-IR (P<0.001), but not with adiponectin level (P = 0.67). Conclusion The association of the functional promoter polymorphism rs266729 with lower serum adiponectin and increased insulin resistance in diverse ethnic groups may suggest a causal relationship between adiponectin level and insulin resistance.
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Tong G, Wang N, Leng J, Tong X, Shen Y, Yang J, Ye X, Zhou L, Zhou Y. Common variants in adiponectin gene are associated with coronary artery disease and angiographical severity of coronary atherosclerosis in type 2 diabetes. Cardiovasc Diabetol 2013; 12:67. [PMID: 23590551 PMCID: PMC3648457 DOI: 10.1186/1475-2840-12-67] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Accepted: 04/15/2013] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Adiponectin, an adipokine facilitating insulin action, has antiatherogenic effects. This study investigated whether common single nucleotide polymorphisms (SNPs) in the adiponectin gene influenced plasma adiponectin level and whether they were associated with the risk of coronary artery disease (CAD) and its angiographical severity in type 2 diabetes in Chinese population. METHODS 11 tagging SNPs were genotyped in 1110 subjects with or without CAD in type 2 diabetes. Variants of adiponectin gene were determined by Taqman polymerase chain reaction method. The plasma adiponectin concentrations were measured by sandwich enzyme-linked immunosorbent assay. The severity and extent of coronary atherosclerosis were assessed using the angiographic Gensini score and Sullivan Extent score. RESULTS Among the 11 SNPs, the minor G allele of SNP rs266729 was significantly associated with higher odds of CAD (odds ratio (95% CI) = 1.49 (1.10 - 2.16), P = 0.022) after adjusting for covariates. In stepwise multivariate logistic regression, SNP rs266729 was a significant independent factor of CAD. Multivariate linear regression analysis revealed that rs266729 (β = -0.101, P < 0.0001), rs182052 (β = -0.044, P = 0.0035), and rs1501299 (β = 0.073, P < 0.0001) were significantly associated with adiponectin level, and also indicated that the minor G allele of SNP rs266729 had higher Gensini score (β = 0.139, P < 0.001) and Sullivan Extent score (β = 0.107, P < 0.001). Haplotypes analysis revealed different haplotype distributions in case and control subjects (P = 0.0003), with two common haplotypes GGG and GAG of the rs266729, rs182052, and rs1501299 being associated in heterozygotes with a greater than threefold increase in cardiovascular risk (odds ratio (95% CI)=3.39 (1.83 - 6.30), P = 0.0001). CONCLUSIONS In our population, genetic variants in the adiponectin gene influence plasma adiponectin levels, and one of them is a strong determinant of CAD susceptibility and its angiographical severity in type 2 diabetes. This study has provided further evidence for a role of adiponectin in the development of CAD.
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Affiliation(s)
- Guoxin Tong
- Department of Cardiology, Capital Medical University, Beijing, China
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36
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Kottyan LC, Woo JG, Keddache M, Banach W, Crimmins NA, Dolan LM, Martin LJ. Novel variations in the adiponectin gene (ADIPOQ) may affect distribution of oligomeric complexes. SPRINGERPLUS 2012; 1:66. [PMID: 23396303 PMCID: PMC3565092 DOI: 10.1186/2193-1801-1-66] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Accepted: 12/08/2012] [Indexed: 01/03/2023]
Abstract
Adiponectin is an obesity related protein that mediates the risk of type 2 diabetes in obese individuals with its anti-inflammatory and insulin-sensitizing properties. To date, five functional variations have been identified in the adiponectin gene. However, these variations are rare, and fail to fully explain adiponectin variability, suggesting unidentified causal variations exist. Thus, our objective was to identify novel, potentially functional amino acid-changing variations in ADIPOQ exonic regions and relate them to oligomeric forms of adiponectin in serum. We sequenced ADIPOQ exons in 30 adolescents chosen from a school-based cohort based on serum adiponectin and insulin levels. Four coding region changes were identified: a methionine initiation skip (MIS), P32L, R55C, and Y111H, of which R55C and Y111H have been previously identified. Individuals with the novel variations and R55C had low levels of adiponectin and decreased adiponectin oligomerization compared to adolescents with similar body mass index and insulin levels. Further, bioinformatic analysis predicted putative functionality of these variations. In our study, Y111H was unrelated to total circulating adiponectin or adiponectin oligomerization. Given the disruption of adiponectin oligomerization in the individuals with MIS, P32L, and R55C coding changes, these variations may lead to increased metabolic disease risk and warrant further examination in larger cohorts.
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Affiliation(s)
- Leah C Kottyan
- Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, MLC 4006, Cincinnati, OH 45229 USA
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Alkhateeb A, Al-Azzam S, Zyadine R, Abuarqoub D. Genetic association of adiponectin with type 2 diabetes in Jordanian Arab population. Gene 2012; 512:61-3. [PMID: 23041553 DOI: 10.1016/j.gene.2012.09.095] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 09/18/2012] [Accepted: 09/28/2012] [Indexed: 01/07/2023]
Abstract
Adiponectin, a protein exclusively secreted by adipose tissue and present at low levels in obese individuals, is now widely recognized as a key determinant of insulin sensitivity and protection against obesity-associated metabolic syndrome. In Jordan, prevalence of diabetes (17.1%) is twice that of the United States (7.8%). In this study, we examined the contribution of the promoter variant rs266729 (-11377C>G) of the ADIPOQ gene as a risk factor for diabetic patients in Jordan. DNA was extracted from blood samples for patients and controls .Polymerase chain reaction and restriction fragment length polymorphism were used to genotype this variant. A total of 420 type 2 diabetic patients and 230 controls were successfully genotyped. The results showed a significant genotypic (p=0.00001) and allelic (p=0.01) association with variant in the diabetic patients as compared to controls. This suggests that the ADIPOQ gene plays a major role in increasing the risk of diabetes, at least in the Jordanian Arab population.
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Affiliation(s)
- Asem Alkhateeb
- Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid 22110, Jordan.
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Li Y, Yang Y, Shi L, Li X, Zhang Y, Yao Y. The association studies of ADIPOQ with type 2 diabetes mellitus in Chinese populations. Diabetes Metab Res Rev 2012; 28:551-9. [PMID: 22539443 DOI: 10.1002/dmrr.2309] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Adiponectin, which is secreted by the white adipose tissue, plays an important role in type 2 diabetes mellitus (T2DM) and its complications. Since 2002, many investigators explored the association between ADIPOQ single nucleotide polymorphisms and T2DM in different ethnic populations from different regions. In China, the results of numerous studies of the association between ADIPOQ and T2DM were not consistent, which may be caused by population-specific effects or environmental effects. This review describes the association between ADIPOQ and T2DM, the metabolic characteristics and the complications of T2DM in Chinese populations.
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Affiliation(s)
- Yiping Li
- Department of Endocrinology and Metabolism, The Second People's Hospital of Yunnan province, Kunming, Yunnan, China
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Breitfeld J, Stumvoll M, Kovacs P. Genetics of adiponectin. Biochimie 2012; 94:2157-63. [DOI: 10.1016/j.biochi.2012.03.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Accepted: 03/02/2012] [Indexed: 11/24/2022]
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Al Rayyan N, Wankhade UD, Bush K, Good DJ. Two single nucleotide polymorphisms in the human nescient helix-loop-helix 2 (NHLH2) gene reduce mRNA stability and DNA binding. Gene 2012; 512:134-42. [PMID: 23026212 DOI: 10.1016/j.gene.2012.09.068] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 08/07/2012] [Accepted: 09/12/2012] [Indexed: 01/17/2023]
Abstract
Nescient helix-loop-helix-2 (NHLH2) is a basic helix-loop-helix transcription factor, which has been implicated, using mouse knockouts, in adult body weight regulation and fertility. A scan of the known single nucleotide polymorphisms (SNPs) in the NHLH2 gene revealed one in the 3' untranslated region (3'UTR), which lies within an AUUUA RNA stability motif. A second SNP is nonsynonymous within the coding region of NHLH2, and was found in a genome-wide association study for obesity. Both of these SNPs were examined for their effect on NLHL2 by creating mouse mimics and examining mRNA stability, and protein function in mouse hypothalamic cell lines. The 3'UTR SNP causes increased instability and, when the SNP-containing Nhlh2 3'UTR is attached to luciferase mRNA, reduced protein levels in cells. The nonsynonymous SNP at position 83 in the protein changes an alanine residue, conserved in NHLH2 orthologs through the Drosophila sp. to a proline residue. This change affects migration of the protein on an SDS-PAGE gel, and appears to alter secondary structure of the protein, as predicted using in silico methods. These results provide functional information on two rare human SNPs in the NHLH2 gene. One of these has been linked to human obese phenotypes, while the other is present in a relatively high proportion of individuals. Given their effects on NHLH2 protein levels, both SNPs deserve further analysis in whether they are causative and/or additive for human body weight and fertility phenotypes.
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Affiliation(s)
- Numan Al Rayyan
- Department of Human Nutrition, Foods and Exercise, Virginia Tech University, Blacksburg, VA 24061, USA
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Urbanek M, Hayes MG, Lee H, Freathy RM, Lowe LP, Ackerman C, Jafari N, Dyer AR, Cox NJ, Dunger DB, Hattersley AT, Metzger BE, Lowe WL. The role of inflammatory pathway genetic variation on maternal metabolic phenotypes during pregnancy. PLoS One 2012; 7:e32958. [PMID: 22479352 PMCID: PMC3316547 DOI: 10.1371/journal.pone.0032958] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2011] [Accepted: 02/08/2012] [Indexed: 02/06/2023] Open
Abstract
Background Since mediators of inflammation are associated with insulin resistance, and the risk of developing diabetes mellitus and gestational diabetes, we hypothesized that genetic variation in members of the inflammatory gene pathway impact glucose levels and related phenotypes in pregnancy. We evaluated this hypothesis by testing for association between genetic variants in 31 inflammatory pathway genes in the Hyperglycemia and Adverse Pregnancy Outcome (HAPO) cohort, a large multiethnic multicenter study designed to address the impact of glycemia less than overt diabetes on pregnancy outcome. Results Fasting, 1-hour, and 2-hour glucose, fasting and 1-hour C-peptide, and HbA1c levels were measured in blood samples obtained from HAPO participants during an oral glucose tolerance test at 24-32 weeks gestation. We tested for association between 458 SNPs mapping to 31 genes in the inflammatory pathway and metabolic phenotypes in 3836 European ancestry and 1713 Thai pregnant women. The strongest evidence for association was observed with TNF alpha and HbA1c (rs1052248; 0.04% increase per allele C; p-value = 4.4×10−5), RETN and fasting plasma glucose (rs1423096; 0.7 mg/dl decrease per allele A; p-value = 1.1×10−4), IL8 and 1 hr plasma glucose (rs2886920; 2.6 mg/dl decrease per allele T; p-value = 1.3×10−4), ADIPOR2 and fasting C-peptide (rs2041139; 0.55 ug/L decrease per allele A; p-value = 1.4×10−4), LEPR and 1-hour C-peptide (rs1171278; 0.62 ug/L decrease per allele T; p-value = 2.4×10−4), and IL6 and 1-hour plasma glucose (rs6954897; −2.29 mg/dl decrease per allele G, p-value = 4.3×10−4). Conclusions Based on the genes surveyed in this study the inflammatory pathway is unlikely to have a strong impact on maternal metabolic phenotypes in pregnancy although variation in individual members of the pathway (e.g. RETN, IL8, ADIPOR2, LEPR, IL6, and TNF alpha,) may contribute to metabolic phenotypes in pregnant women.
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Affiliation(s)
- Margrit Urbanek
- Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America.
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Contribution of transcription factor binding site motif variants to condition-specific gene expression patterns in budding yeast. PLoS One 2012; 7:e32274. [PMID: 22384202 PMCID: PMC3285675 DOI: 10.1371/journal.pone.0032274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Accepted: 01/24/2012] [Indexed: 11/19/2022] Open
Abstract
It is now experimentally well known that variant sequences of a cis transcription factor binding site motif can contribute to differential regulation of genes. We characterize the relationship between motif variants and gene expression by analyzing expression microarray data and binding site predictions. To accomplish this, we statistically detect motif variants with effects that differ among environments. Such environmental specificity may be due to either affinity differences between variants or, more likely, differential interactions of TFs bound to these variants with cofactors, and with differential presence of cofactors across environments. We examine conservation of functional variants across four Saccharomyces species, and find that about a third of transcription factors have target genes that are differentially expressed in a condition-specific manner that is correlated with the nucleotide at variant motif positions. We find good correspondence between our results and some cases in the experimental literature (Reb1, Sum1, Mcm1, and Rap1). These results and growing consensus in the literature indicates that motif variants may often be functionally distinct, that this may be observed in genomic data, and that variants play an important role in condition-specific gene regulation.
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Association of adiponectin gene functional polymorphisms (-11377C/G and +45T/G) with nonalcoholic fatty liver disease. Gene 2011; 496:63-7. [PMID: 22269154 DOI: 10.1016/j.gene.2011.12.023] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Revised: 11/26/2011] [Accepted: 12/06/2011] [Indexed: 12/25/2022]
Abstract
Adiponectin levels are reduced in NAFLD patients and genetic variants of adiponectin have been frequently associated with type 2 diabetes and insulin resistance. To determine the genotypic frequencies of adiponectin functional polymorphisms (-11377C/G and +45T/G) and their subsequent effect on disease progression and plasma adiponectin levels in the patients with NAFLD. A total of 137 NAFLD patients and 250 matched controls were enrolled in the study. DNA sequencing and genotyping were performed to identify the genetic variants. The plasma adiponectin levels were assessed by ELISA. Homozygous mutant genotype of adiponectin SNPs, -11377C/G and +45T/G, were significantly more prevalent in NAFLD patients than controls (Bonferroni corrected p=0.014 and 0.018, respectively). Plasma adiponectin levels were significantly lower in the NAFLD patients as compared to controls. Moreover, presence of 'G' allele at position -11377C/G and +45T/G was found to be associated with necroinflammatory grade and reduced adiponectin levels, (p values 0.02 and 0.01) respectively. -11377G and +45G alleles are associated with severity of liver disease and hypoadiponectemia, in the patients with NAFLD, respectively.
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Croteau-Chonka DC, Wu Y, Li Y, Fogarty MP, Lange LA, Kuzawa CW, McDade TW, Borja JB, Luo J, AbdelBaky O, Combs TP, Adair LS, Lange EM, Mohlke KL. Population-specific coding variant underlies genome-wide association with adiponectin level. Hum Mol Genet 2011; 21:463-71. [PMID: 22010046 DOI: 10.1093/hmg/ddr480] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Adiponectin is a protein hormone that can affect major metabolic processes including glucose regulation and fat metabolism. Our previous genome-wide association (GWA) study of circulating plasma adiponectin levels in Filipino women from the Cebu Longitudinal Health and Nutrition Survey (CLHNS) detected a 100 kb two-SNP haplotype at KNG1-ADIPOQ associated with reduced adiponectin (frequency = 0.050, P = 1.8 × 10(-25)). Subsequent genotyping of CLHNS young adult offspring detected an uncommon variant [minor allele frequency (MAF) = 0.025] located ~800 kb from ADIPOQ that showed strong association with lower adiponectin levels (P = 2.7 × 10(-15), n = 1695) and tagged a subset of KNG1-ADIPOQ haplotype carriers with even lower adiponectin levels. Sequencing of the ADIPOQ-coding region detected variant R221S (MAF = 0.015, P = 2.9 × 10(-69)), which explained 17.1% of the variance in adiponectin levels and largely accounted for the initial GWA signal in Filipinos. R221S was not present in 12 514 Europeans with previously sequenced exons. To explore the mechanism of this substitution, we re-measured adiponectin level in 20 R221S offspring carriers and 20 non-carriers using two alternative antibodies and determined that the presence of R221S resulted in artificially low quantification of adiponectin level using the original immunoassay. These data provide an example of an uncommon variant responsible for a GWA signal and demonstrate that genetic associations with phenotypes measured by antibody-based quantification methods can be affected by uncommon coding SNPs residing in the antibody target region.
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Cieslak J, Bartz M, Stachowiak M, Skowronska B, Majewska KA, Harasymczuk J, Stankiewicz W, Fichna P, Switonski M. Effect of three common SNPs in 5'-flanking region of LEP and ADIPOQ genes on their expression in Polish obese children and adolescents. Mol Biol Rep 2011; 39:3951-5. [PMID: 21755292 PMCID: PMC3294210 DOI: 10.1007/s11033-011-1174-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Accepted: 07/02/2011] [Indexed: 12/15/2022]
Abstract
Genes encoding adipokines are considered as candidates for human obesity. In this study we analyzed the expression of leptin (LEP) and adiponectin (ADIPOQ) genes in relation to common 5′-flanking or 5′UTR variants: -2548G>A (LEP), 19A>G (LEP) and -11377C>G (ADIPOQ) in Polish obese children and adolescents. Relative transcription levels in the subcutaneous adipose tissue (real time RT–PCR) and serum protein concentrations (RIA) were measured in 48 obese subjects with known genotypes at three polymorphic sites and in five non-obese controls. None of the studied polymorphisms altered significantly the expression. Significantly elevated relative transcription levels of the LEP gene (P < 0.05) and serum leptin concentrations (P < 0.01) were recorded in obese patients, when compared with the non-obese controls, but such differences were not found for the ADIPOQ gene. Interestingly, the leptin to adiponectin protein concentration ratio (L/A) was approximately sevenfold higher in obese children and adolescents when compared with the non-obese controls (P < 0.001). Taking into consideration the observed relationship between the genotypes and the gene expression level we suggest that these SNPs are not conclusive markers for predisposition to obesity in Polish children and adolescents. On the other hand, we confirmed that the leptin to adiponectin gene expression ratio (L/A) is an informative index characterizing obesity.
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Affiliation(s)
- J Cieslak
- Department of Genetics and Animal Breeding, Poznan University of Life Sciences, Wolynska 33, 60-637, Poznan, Poland
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Menzaghi C, De Cosmo S, Copetti M, Salvemini L, De Bonis C, Mangiacotti D, Fini G, Pellegrini F, Trischitta V. Relationship between ADIPOQ gene, circulating high molecular weight adiponectin and albuminuria in individuals with normal kidney function: evidence from a family-based study. Diabetologia 2011; 54:812-8. [PMID: 21229348 DOI: 10.1007/s00125-010-2037-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2010] [Accepted: 12/14/2010] [Indexed: 12/26/2022]
Abstract
AIMS/HYPOTHESIS Insulin resistance is associated with reduced serum adiponectin and increased albuminuria levels. Thus, one would anticipate an inverse relationship between circulating adiponectin and albuminuria. However, several studies have described a 'paradoxical' elevation of serum adiponectin in patients with elevated albuminuria. These findings may have been confounded by the presence of diseases and related treatments known to affect circulating adiponectin and albuminuria. We therefore studied the relationship between circulating adiponectin and albuminuria in the absence of such confounders. METHODS To this purpose, the relationship between adiponectin isoforms and albumin:creatinine ratio (ACR) was investigated in a family-based sample of 634 non-diabetic untreated white individuals with normal kidney function. We also investigated whether the two variables share a common genetic background and addressed the specific role of the gene encoding adiponectin on that background by genotyping several ADIPOQ single nucleotide polymorphisms (SNPs). RESULTS ACR was directly associated with high molecular weight (HMW) adiponectin isoform (p = 0.024). The two variables shared some genetic correlation (ρ(g) = 0.38, p = 0.04). ADIPOQ promoter SNP rs17300539 was associated with HMW adiponectin (p = 4.8 × 10(-5)) and ACR (p =0.0027). The genetic correlation between HMW adiponectin and ACR was no longer significant when SNP rs17300539 was added to the model, thus reinforcing the role of this SNP in determining both traits. CONCLUSIONS/INTERPRETATION Our study shows a positive, independent correlation between HWM adiponectin and ACR. ADIPOQ variability is associated with HMW adiponectin and ACR, and explains some of the common genetic background shared by these traits, thus suggesting that ADIPOQ and HMW adiponectin modulate albuminuria levels.
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Affiliation(s)
- C Menzaghi
- Research Unit of Diabetes and Endocrine Disease, IRCCS Casa Sollievo della Sofferenza, Viale Padre Pio, 71013 San Giovanni Rotondo, Italy
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Krinninger P, Brunner C, Ruiz PA, Schneider E, Marx N, Foryst-Ludwig A, Kintscher U, Haller D, Laumen H, Hauner H. Role of the adipocyte-specific NF-κB activity in the regulation of IP-10 and T cell migration. Am J Physiol Endocrinol Metab 2011; 300:E304-11. [PMID: 21062959 DOI: 10.1152/ajpendo.00143.2010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Infiltration of immune cells into adipose tissue plays a central role in the pathophysiology of obesity-associated low-grade inflammation. The aim of this study was to analyze the role of adipocyte NF-κB signaling in the regulation of the chemokine/adipokine interferon-γ-induced protein 10 kDa (IP-10) and adipocyte-mediated T cell migration. Therefore, the regulation of IP-10 was investigated in adipose tissue of male C57BL/6J mice, primary human and 3T3-L1 preadipocytes/adipocytes. To specifically block the NF-κB pathway, 3T3-L1 cells stably overexpressing a transdominant mutant of IκBα were generated, and the chemical NF-κB inhibitor Bay117082 was used. Adipocyte-mediated T cell migration was assessed by a migration assay. It could be shown that IP-10 expression was higher in mature adipocytes compared with preadipocytes. Induced IP-10 expression and secretion were completely blocked by an NF-κB inhibitor in 3T3-L1 and primary human adipocytes. Stable overexpression of a transdominant mutant of IκBα in 3T3-L1 adipocytes led to an inhibition of basal and stimulated IP-10 expression and secretion. T cell migration was induced by 3T3-L1 adipocyte-conditioned medium, and both basal and induced T cell migration was strongly inhibited by stable overexpression of a transdominant IκBα mutant. In addition, with the use of an anti-IP-10 antibody, a significant decrease of adipocyte-induced T cell migration was shown. In conclusion, in this study, we could demonstrate that the NF-κB pathway is essential for the regulation of IP-10 in 3T3-L1 and primary human adipocytes. Adipocytes rather than preadipocytes contribute to NF-κB-dependent IP-10 expression and secretion. Furthermore, NF-κB-dependent factors and especially IP-10 represent novel signals from adipocytes to induce T cell migration.
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Common variation in the adiponectin gene has an effect on systolic blood pressure. J Hum Hypertens 2011; 25:719-24. [DOI: 10.1038/jhh.2010.122] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Siitonen N, Pulkkinen L, Lindström J, Kolehmainen M, Eriksson JG, Venojärvi M, Ilanne-Parikka P, Keinänen-Kiukaanniemi S, Tuomilehto J, Uusitupa M. Association of ADIPOQ gene variants with body weight, type 2 diabetes and serum adiponectin concentrations: the Finnish Diabetes Prevention Study. BMC MEDICAL GENETICS 2011; 12:5. [PMID: 21219602 PMCID: PMC3032655 DOI: 10.1186/1471-2350-12-5] [Citation(s) in RCA: 108] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2010] [Accepted: 01/10/2011] [Indexed: 12/31/2022]
Abstract
BACKGROUND Adiponectin, secreted mainly by mature adipocytes, is a protein with insulin-sensitising and anti-atherogenic effects. Human adiponectin is encoded by the ADIPOQ gene on the chromosomal locus 3q27. Variations in ADIPOQ are associated with obesity, type 2 diabetes (T2DM) and related phenotypes in several populations. Our aim was to study the association of the ADIPOQ variations with body weight, serum adiponectin concentrations and conversion to T2DM in overweight subjects with impaired glucose tolerance. Moreover, we investigated whether ADIPOQ gene variants modify the effect of lifestyle changes on these traits. METHODS Participants in the Finnish Diabetes Prevention Study were randomly assigned to a lifestyle intervention group or a control group. Those whose DNA was available (n = 507) were genotyped for ten ADIPOQ single nucleotide polymorphisms (SNPs). Associations between SNPs and baseline body weight and serum adiponectin concentrations were analysed using the univariate analysis of variance. The 4-year longitudinal weight data were analysed using linear mixed models analysis and the change in serum adiponectin from baseline to year four was analysed using Kruskal-Wallis test. In addition, the association of SNPs with the risk of developing T2DM during the follow-up of 0-11 (mean 6.34) years was analysed by Cox regression analysis. RESULTS rs266729, rs16861205, rs1501299, rs3821799 and rs6773957 associated significantly (p < 0.05) with body weight at baseline and in the longitudinal analyses. The rs266729 C allele and the rare minor alleles of rs2241766 and rs2082940 were associated with an increased adjusted hazard ratio of developing T2DM. The differences in baseline serum adiponectin concentrations were seen according to rs16861210, rs17366568, rs2241766, rs6773957 and rs2082940 and differences in the change of serum adiponectin levels from baseline to the four year examination were seen according to rs16861205, especially in subjects who were able to lose weight during the first year of intervention. CONCLUSIONS These results from the Finnish Diabetes Prevention Study support the concept that genetic variation in ADIPOQ locus contributes to variation in body size and serum adiponectin concentrations and may also modify the risk of developing T2DM. TRIAL REGISTRATION NUMBER ClinicalTrials.gov NCT00518167.
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Affiliation(s)
- Niina Siitonen
- Department of Clinical Nutrition and Food and Health Research Centre, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Leena Pulkkinen
- Department of Clinical Nutrition and Food and Health Research Centre, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Jaana Lindström
- Department of Health Promotion and Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Marjukka Kolehmainen
- Department of Clinical Nutrition and Food and Health Research Centre, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Johan G Eriksson
- Department of Health Promotion and Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland
- Unit of General Practice, Helsinki University Central Hospital, Helsinki, Finland
- Folkhalsan Research Centre, Helsinki, Finland
- Department of General Practice and Primary Health Care, University of Helsinki, Helsinki, Finland
- Vasa Central Hospital, Vasa, Finland
| | - Mika Venojärvi
- Population Studies Unit, Department of Chronic Disease Prevention, National Institute for Health and Welfare, Turku, Finland
| | - Pirjo Ilanne-Parikka
- Diabetes Centre, Finnish Diabetes Association, Tampere, Finland
- Science Centre, Pirkanmaa Hospital District, Tampere University Hospital, Tampere, Finland
| | - Sirkka Keinänen-Kiukaanniemi
- Institute of Health Sciences, University of Oulu, Oulu, Finland
- Unit of General Practice, Oulu University Hospital, Oulu, Finland
| | - Jaakko Tuomilehto
- Department of Health Promotion and Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
- South Ostrobothnia Central Hospital, Seinäjoki, Finland
| | - Matti Uusitupa
- Department of Clinical Nutrition and Food and Health Research Centre, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
- Research Unit, Kuopio University Hospital, Kuopio, Finland
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Enns JE, Taylor CG, Zahradka P. Variations in Adipokine Genes AdipoQ, Lep, and LepR are Associated with Risk for Obesity-Related Metabolic Disease: The Modulatory Role of Gene-Nutrient Interactions. J Obes 2011; 2011:168659. [PMID: 21773001 PMCID: PMC3136149 DOI: 10.1155/2011/168659] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2011] [Accepted: 03/10/2011] [Indexed: 02/08/2023] Open
Abstract
Obesity rates are rapidly increasing worldwide and facilitate the development of many related disease states, such as cardiovascular disease, the metabolic syndrome, type 2 diabetes mellitus, and various types of cancer. Variation in metabolically important genes can have a great impact on a population's susceptibility to becoming obese and/or developing related complications. The adipokines adiponectin and leptin, as well as the leptin receptor, are major players in the regulation of body energy homeostasis and fat storage. This paper summarizes the findings of single nucleotide polymorphisms in these three genes and their effect on obesity and metabolic disease risk. Additionally, studies of gene-nutrient interactions involving adiponectin, leptin, and the leptin receptor are highlighted to emphasize the critical role of diet in susceptible populations.
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Affiliation(s)
- Jennifer Emily Enns
- Department of Physiology, University of Manitoba and Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, 351 Tache Ave, Winnipeg, Manitoba, Canada R2H 2A6
| | - Carla G. Taylor
- Departments of Human Nutritional Sciences and Physiology, University of Manitoba, 351 Tache Ave, Winnipeg, Manitoba, Canada R2H 2A6
| | - Peter Zahradka
- Departments of Physiology and Human Nutritional Sciences, University of Manitoba and Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Research Centre, 351 Tache Ave, Winnipeg, Manitoba, Canada R2H 2A6
- *Peter Zahradka:
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