Abstract
The peroxisome proliferator-activated receptor-γ2 (PPAR-γ2) gene has been reported in the pathogeny of obesity. However, the results have been inconsistent. The purpose of this meta-analysis was to acquire a more accurate assessment of the association between PPAR-γ2 Pro12Ala polymorphism and obesity. PubMed, Wan Fang (Chinese) databases, Chinese Biomedical Medical databases, and Chinese National Knowledge Infrastructure were searched to identify eligible studies. Finally, 25 studies (6491 cases and 8242 controls) were enrolled in this meta-analysis. The effect summary odds ratio (OR) with 95 % confidence interval (CI) was applied. Random-effects or fixed-effects model was performed based on the heterogeneity. STATA 12.0 was applied for this meta-analysis. The combined results showed that PPAR-γ Pro12Ala polymorphism was associated with the obesity risk (Ala vs. Pro: OR = 1.55, 95 % CI 1.34–1.80; Pro/Ala vs. Pro/Pro: OR = 1.54, 95 % CI 1.31–1.82; Ala/Ala + Pro/Ala vs. Pro/Pro: OR = 1.61, 95 % CI 1.36–1.90). Subgroup analysis by ethnicity showed that there were significant associations between PPAR-γ Pro12Ala polymorphism and obesity risk in Caucasians, Asians, and Mixed population. Subgroup analysis by obesity’s cutoff points showed that the associations were found among the patients with the cutoff point of BMI ≥24 and BMI ≥30 but not among the patients with the cutoff point of BMI ≥95th percentile. These results suggested that PPAR-γ Pro12Ala polymorphism might be a risk factor for obesity susceptibility.
Similar content being viewed by others
References
Ogden CL, Carroll MD, Kit BK, Flegal KM (2012) Prevalence of obesity in the United States, 2009–2010. NCHS Data Brief 82:1–8
Sardinha LB, Santos DA, Silva AM et al (2012) Prevalence of overweight, obesity, and abdominal obesity in a representative sample of Portuguese adults. PLoS ONE 10:e47883
Li XY, Jiang Y, Hu N, Li YC, Zhang M, Huang ZJ, Zhao WH (2012) Prevalence and characteristic of overweight and obesity among adults in China, 2010. Zhonghua Yu Fang Yi Xue Za Zhi 46:683–686 (In Chinese)
Wang YC, McPherson K, Marsh T, Gortmaker SL, Brown M (2011) Health and economic burden of the projected obesity trends in the USA and the UK. Lancet 378:815–825
Faith MS, Butryn M, Wadden TA, Fabricatore A, Nguyen AM, Heymsfield SB (2011) Evidence for prospective associations among depression and obesity in population-based studies. Obes Rev 12:e438–e453
Haslam DW, James WP (2005) Obesity. Lancet 366:1197–1209
Wang R, Zhou D, Xi B et al (2011) ENPP1/PC-1 gene K121Q polymorphism is associated with obesity in European adult populations: evidence from a meta-analysis involving 24,324 subjects. Biomed Environ Sci 24:200–206
Rankinen T, Zuberi A, Chagnon YC et al (2006) The human obesity gene map: the 2005 update. Obesity (Silver Spring) 14:529–644
Kliewer SA, Lenhard JM, Willson TM, Patel I, Morris DC, Lehmann JM (1995) A prostaglandin J2 metabolite binds peroxisome proliferator-activated receptor gamma and promotes adipocyte differentiation. Cell 83:813–819
Auwerx J (1999) PPARgamma, the ultimate thrifty gene. Diabetologia 42:1033–1049
Yen CJ, Beamer BA, Negri C et al (1997) Molecular scanning of the human peroxisome proliferator activated receptor gamma (hPPAR gamma) gene in diabetic Caucasians: identification of a Pro12Ala PPAR gamma 2 missense mutation. Biochem Biophys Res Commun 241:270–274
Prakash J, Srivastava N, Awasthi S et al (2012) Association of PPAR-γ gene polymorphisms with obesity and obesity-associated phenotypes in North Indian population. Am J Hum Biol 24:454–459
Bhatt SP, Misra A, Sharma M et al (2012) Ala/Ala genotype of Pro12Ala polymorphism in the peroxisome proliferator-activated receptor-γ2 gene is associated with obesity and insulin resistance in Asian Indians. Diabetes Technol Ther 14:828–834
Canizales-Quinteros S, Aguilar-Salinas CA, Ortiz-López MG et al (2007) Association of PPARG2 Pro12Ala variant with larger body mass index in Mestizo and Amerindian populations of Mexico. Hum Biol 79:111–119
Ai ZH, Fang DC, Zhang ZH (2008) Association of Pro12Ala mutation in peroxisome proliferator-activated receptor-γ2 with obesity in Chinese population. Acta Acad Med Mil Tertiae 30:691–693 (In Chinese)
Wang LP, Zhao LR, Cui HW, Yan MR, Yang L, Su XL (2012) Association between PPARγ2 Pro12Ala polymorphism and myocardial infarction and obesity in Han Chinese in Hohhot, China. Genet Mol Res 11:2929–2938
Ghoussaini M, Meyre D, Lobbens S et al (2005) Implication of the Pro12Ala polymorphism of the PPAR-gamma 2 gene in type 2 diabetes and obesity in the French population. BMC Med Genet 6:11
Srámková D, Kunesová M, Hainer V, Hill M, Vcelák J, Bendlová B (2002) Is a Pro12Ala polymorphism of the PPARgamma2 gene related to obesity and type 2 diabetes mellitus in the Czech population? Ann N Y Acad Sci 967:265–273
Lau J, Ioannidis JP, Schmid CH (1997) Quantitative synthesis in systematic reviews. Ann Intern Med 127:820–826
Higgins JP, Thompson SG (2002) Quantifying heterogeneity in a meta-analysis. Stat Med 21:1539–1558
Mantel N, Haenszel W (1959) Statistical aspects of the analysis of data from retrospective studies of disease. J Natl Cancer Inst 22:719–748
DerSimonian R, Laird N (1986) Meta-analysis in clinical trials. Control Clin Trials 7:177–188
Begg CB, Mazumdar M (1994) Operating characteristics of a rank correlation test for publication bias. Biometrics 50:1088–1101
Egger M, Davey Smith G, Schneider M, Minder C (1997) Bias in meta-analysis detected by a simple, graphical test. BMJ 315:629–634
Ek J, Urhammer SA, Sørensen TI, Andersen T, Auwerx J, Pedersen O (1999) Homozygosity of the Pro12Ala variant of the peroxisome proliferation-activated receptor-gamma2 (PPAR-gamma2): divergent modulating effects on body mass index in obese and lean Caucasian men. Diabetologia 42:892–895
Clement K, Hercberg S, Passinge B et al (2000) The Pro115Gln and Pro12Ala PPAR gamma gene mutations in obesity and type 2 diabetes. Int J Obes Relat Metab Disord 24:391–393
Vaccaro O, Mancini FP, Ruffa G, Sabatino L, Colantuoni V, Riccardi G (2000) Pro12Ala mutation in the peroxisome proliferator-activated receptor gamma2 (PPARgamma2) and severe obesity: a case-control study. Int J Obes Relat Metab Disord 24:1195–1199
Ochoa MC, Marti A, Azcona C et al (2004) Gene-gene interaction between PPAR gamma 2 and ADR beta 3 increases obesity risk in children and adolescents. Int J Obes Relat Metab Disord 28:S37–S41
Larsen TM, Larsen LH, Torekov SK et al (2005) Novel variants in the putative peroxisome proliferator-activated receptor gamma promoter and relationships with obesity in men. Obes Res 13:953–958
Zhang DF, Zhu JZ, Gao J, Guo WC, Yu XP, Wang FN (2005) The relationship among peroxisome proliferator-activated receptor γ2(PPARγ2) gene mutation and leptin secretion and adiposity in Shijiazhuang area. Chin J Birth Health Hered 13:25–26 (In Chinese)
Li XL, Lin Zhang, Yang WL, Wang N (2007) Correlation between Pro12Ala Polymorphism in PPARγ2 and Obesity. J Fujian Med Univ 41:423–425 (In Chinese)
Guo XJ, Wang HJ, MA J, Yin ZD, P YP (2008) Study on the relationship between peroxisome proliferator activated receptor-γ (PPARγ) gene polymorphism and obesity or abnormal glucose metabolism in adolescents. Chin J School Health 29:890–892 (In Chinese)
Ramírez-Salazar M, Pérez-Luque E, Fajardo-Araujo M, Garza SM, Malacara JM (2008) Effect of the Pro12Ala polymorphism of the PPAR gamma 2 gene on response to pioglitazone treatment in menopausal women. Menopause 15:1151–1156
Cauchi S, Nead KT, Choquet H et al (2008) The genetic susceptibility to type 2 diabetes may be modulated by obesity status: implications for association studies. BMC Med Genet 9:45
Mirzaei H, Akrami SM, Golmohammadi T et al (2009) Polymorphism of Pro12Ala in the peroxisome proliferator-activated receptor gamma2 gene in Iranian diabetic and obese subjects. Metab Syndr Relat Disord 7:453–458
Wang W, Zhang WW, Xie ZM, Li YR, Pei XF (2009) A pioneer study on relationship of peroxisome proliferator-activated receptor-γ2 and uncoupling protein 2 gene polymorphism with simple obesity in Chengdu. Mod Prev Med 36:938–941
Ben Ali S, Ben Yahia F, Sediri Y et al (2009) Gender-specific effect of Pro12Ala polymorphism in peroxisome proliferator-activated receptor gamma-2 gene on obesity risk and leptin levels in a Tunisian population. Clin Biochem 42:1642–1647
Costa V, Casamassimi A, Esposito K et al (2009) Characterization of a novel polymorphism in PPARG regulatory region associated with type 2 diabetes and diabetic retinopathy in Italy. J Biomed Biotechnol 2009:126917
Wang YX, Zhang D, Wu ZX, Ji HM, Song YP (2010) Association of PPARγ2 gene Pro12Ala polymorphism with overweight and obesity. Mod Prev Med 37:3945–3947 (In Chinese)
Wang YX, Suo LN, Wu ZX, Ji HM, Song YP (2010) Association of PPARγ2 gene Pro12Ala polymorphism with over weight and obesity of older persons. Chin J Gerontol 30:3244–3246 (In Chinese)
Bidzińska-Speichert B, Lenarcik A, Tworowska-Bardzińska U et al (2011) Pro12Ala PPAR gamma2 gene polymorphism in women with polycystic ovary syndrome. Ginekol Pol 82:426–429
Zuo HJ, Xie ZM, Zhang WW, Li YR, Wang W, Ding XB, Pei XF (2011) Gut bacteria alteration in obese people and its relationship with gene polymorphism. World J Gastroenterol 17:1076–1081
Tian ZG (2011) The relationship between polymorphism in PPAR-γ2 gene and type 2 diabetes Mellitus in Hui and Han People in Ningxia. Dissertation, Ningxia Medical University
Bell CG, Walley AJ, Froguel P (2005) The genetics of human obesity. Nat Rev Genet 6:221–234
Masud S, Ye S; SAS Group (2003) Effect of the peroxisome proliferator activated receptor-gamma gene Pro12Ala variant on body mass index: a meta-analysis. J Med Genet 40:773–780
Paracchini V, Pedotti P, Taioli E (2005) Genetics of leptin and obesity: a HuGE review. Am J Epidemiol 162:101–114
Beamer BA, Yen CJ, Andersen RE et al (1998) Association of the Pro12Ala variant in the peroxisome proliferator-activated receptor-gamma2 gene with obesity in two Caucasian populations. Diabetes 47:1806–1808
Stevens J, McClain JE, Truesdale KP (2008) Selection of measures in epidemiologic studies of the consequences of obesity. Int J Obes (Lond) Suppl 3:S60–66
Acknowledgments
This research was supported by National Natural Science Foundation of China (No. 81072367); Natural Science Foundation of Anhui province, China (No. 1308085MH135 and No. 090413126); the Key Projects Universities of young talents Fund of Anhui provincial (2013SQRL056ZD), Provincial Natural Science Research Project of Anhui Colleges (No. KJ2008A098 and KJ2014A265).
Conflict of interest
None.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Yao, Ys., Li, J., Jin, Yl. et al. Association between PPAR-γ2 Pro12Ala polymorphism and obesity: a meta-analysis. Mol Biol Rep 42, 1029–1038 (2015). https://doi.org/10.1007/s11033-014-3838-6
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11033-014-3838-6