PMID- 23010200 OWN - NLM STAT- MEDLINE DCOM- 20130116 LR - 20221207 IS - 1879-0038 (Electronic) IS - 0378-1119 (Linking) VI - 512 IP - 1 DP - 2013 Jan 1 TI - Association of TCF7L2 gene polymorphisms with type 2 diabetes mellitus in Han Chinese population: a meta-analysis. PG - 76-81 LID - S0378-1119(12)01115-8 [pii] LID - 10.1016/j.gene.2012.09.034 [doi] AB - Variants of transcription factor 7-like 2 (TCF7L2) gene have been reported to be associated with type 2 diabetes mellitus (T2DM), but the available data on this relationship are inconsistent in Han Chinese populations. A meta-analysis was performed to quantitatively analyze the association of TCF7L2 gene polymorphisms with T2DM using previous case-control studies in Chinese Han populations. Several electronic databases were searched for relevant articles up to May 2012. After data collection and gene loci selection, a meta-analysis was performed to assess heterogeneity, combine results and evaluate variations. Publication bias was examined by the Egger's linear regression test. Hardy-Weinberg equilibrium (HWE) test and by omitting one study at a time were employed for the sensitivity analysis. Eighteen studies from sixteen eligible papers were included in the meta-analysis. Ten eligible studies were analyzed for rs7903146, and eight were analyzed for rs290487. We found that the rs7903146 T allele was associated with an increased risk for T2DM under a dominant model, a co-dominant model and an allele contrast model, with an OR of 1.54 (1.32, 1.79), an OR of 1.53 (1.31, 1.79) and an OR of 1.52 (1.31, 1.76), respectively. The rs290487 C allele showed no significant overall association with T2DM, yielding ORs of 1.08 (0.88, 1.32) under a dominant model, with strong evidence of heterogeneity. Similar results were also obtained in other genetic models. Sensitivity analysis confirmed the reliability and stability of this meta-analysis. The accumulated evidence suggested that the rs7903146 T allele was associated with an increased risk for T2DM, but the rs290487 C allele is not associated with T2DM in the Chinese Han population. More well-designed large studies are required for the validation of this association. CI - Copyright (c) 2012 Elsevier B.V. All rights reserved. FAU - Zhang, Bu-Chun AU - Zhang BC AD - Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China. FAU - Li, Wei-Ming AU - Li WM FAU - Zhu, Meng-Yun AU - Zhu MY FAU - Xu, Ya-Wei AU - Xu YW LA - eng PT - Journal Article PT - Meta-Analysis PT - Research Support, Non-U.S. Gov't DEP - 20120923 PL - Netherlands TA - Gene JT - Gene JID - 7706761 RN - 0 (Transcription Factor 7-Like 2 Protein) SB - IM MH - Alleles MH - Asian People/*genetics MH - Case-Control Studies MH - China MH - Diabetes Mellitus, Type 2/*genetics MH - *Genetic Predisposition to Disease MH - Genotype MH - Humans MH - *Polymorphism, Single Nucleotide MH - Publication Bias MH - Transcription Factor 7-Like 2 Protein/*genetics EDAT- 2012/09/27 06:00 MHDA- 2013/01/17 06:00 CRDT- 2012/09/27 06:00 PHST- 2012/06/29 00:00 [received] PHST- 2012/08/17 00:00 [revised] PHST- 2012/09/06 00:00 [accepted] PHST- 2012/09/27 06:00 [entrez] PHST- 2012/09/27 06:00 [pubmed] PHST- 2013/01/17 06:00 [medline] AID - S0378-1119(12)01115-8 [pii] AID - 10.1016/j.gene.2012.09.034 [doi] PST - ppublish SO - Gene. 2013 Jan 1;512(1):76-81. doi: 10.1016/j.gene.2012.09.034. Epub 2012 Sep 23.