Association between the AGTR1 A1166C polymorphism and risk of IgA nephropathy: a meta-analysis

Genetics and Molecular Research : GMR
J M XuR Wang

Abstract

Numerous studies have evaluated the association between the A1166C polymorphism in the angiotensin II type 1 receptor (AGTR1) gene and immunoglobulin A nephropathy (IgAN) risk. However, this relationship remains controversial. Our aim was to evaluate the relationship between this polymorphism and IgAN susceptibility by performing a meta-analysis. Articles were identified in the PubMed, Google Scholar, and China National Knowledge Infrastructure databases, and after selection, five eligible studies were included. Statistical analyses were carried out using Stata 12.0, combining data from all the relevant studies. The pooled odds ratios (ORs) regarding the association between the AGTR1 A1166C polymorphism and IgAN risk were not statistically significant [A vs C: OR = 0.64, 95% confidence interval (CI) = 0.24-1.68; AA vs AC+CC: OR = 1.02, 95%CI = 0.74-1.39; CC vs AC+AA: OR = 1.20, 95%CI = 0.48-2.98; AC vs AA+CC: OR = 0.96, 95%CI = 0.70-1.31]. In conclusion, the AGTR1 gene A1166C polymorphism may not be correlated with IgAN susceptibility. However, further studies should be performed to confirm this finding.

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