Association between the PPARγ Pro12Ala polymorphism and risk of gestational diabetes mellitus: a meta-analysis.
The relationship between the Pro12Ala polymorphism of PPARγ and the risk of gestational diabetes mellitus remains unresolved. Here, we attempted to resolve this inconsistency. Case-control studies pertaining to the effect of the Pro12Ala polymorphism in the PPARγ protein and risk of gestational diabetes mellitus were extracted from the HuGE, PubMed, Web of Science, CNKI, and SinoMed databases after an extensive literature search. The studies were statistically analyzed using STATA (v.12.0) software. Twelve case-control studies composed of 2968 GDM cases and 5576 controls that fulfilled the inclusion criteria were included in this meta-analysis. We identified no significant relation between the Pro12Ala polymorphism of PPAR-γ and risk of GDM, when analyzed by the allele [G vs C: odds ratio (OR) = 0.85; 95% confidence interval (CI): 0.71-1.01] and dominant (CG+GG vs CC: OR = 0.86; 95% CI: 0.72-1.03) models. Subgroup analysis by ethnicity revealed that East Asian and Middle Eastern females expressing the A allele showed reduced susceptibility to GDM. Additionally, we observed significant differences between the East Asian, Middle Eastern, and Caucasian females (P = 0.008) with respect to GDM susceptibility. The results of this meta-analysis indicated the influence of ethnicity in determining GDM susceptibility, in the presence of a Pro12Ala polymorphism in PPARγ.
Department of Gynecology & Obstetrics, The First Affiliated Hospital of Jinan University, Guangzhou, China.
H L
HL
Shuai
Department of Gynecology & Obstetrics, The First Affiliated Hospital of Jinan University, Guangzhou, China.
X Z
XZ
Lin
Department of Gynecology & Obstetrics, The First Affiliated Hospital of Jinan University, Guangzhou, China.
D L
DL
Chen
Department of Nursing Science, School of Medicine, Jinan University, Guangzhou, China pingli201509@sina.com.
P
P
Li
Department of Gynecology & Obstetrics, The First Affiliated Hospital of Jinan University, Guangzhou, China.
X
X
Luo
D016640:Diabetes, Gestational / Q000235:genetics*; D005260:Female; D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D006801:Humans; D047495:PPAR gamma / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D011247:Pregnancy; D017594:Publication Bias; D012307:Risk Factors
D047495:PPAR gamma