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Published on: April 19, 2013
Association of P2X7 polymorphisms on Type 2 diabetes mellitus susceptibility and diabetic complications
Guoni Huang1, Jing Cheng1, Wenfeng Liu1
1Department of Laboratory Medicine, People's Hospital of Shenzhen Baoan District, Shenzhen, P. R. China.
Objectives:
This case-control study aims to clarify the impact of single nucleotide polymorphisms (SNPs) within the P2X7 gene on susceptibility to type 2 diabetes mellitus (T2DM) and to evaluate their association with diabetic complications.
Methods:
This study is comprised with 200 T2DM cases and 200 healthy controls. Seven candidate SNP loci were screened, and TaqMan-MGB real-time PCR technology was used to determine the polymorphic variants of P2X7. Different genotype and allele frequencies were compared by Pearson's χ2 tests and logistic regression analysis.
Results:
Three P2X7 SNPs were found to be associated with T2DM risk. Specifically, rs7958311 GA (OR = 1.323, p = 0.002), rs7958311 AA (OR = 1.508, p = 0.038), rs208294 CC (OR = 1.854, p = 0.042) showed a higher susceptibility to T2DM, whilst rs11065464 CA (OR = 0.614, p = 0.022) was associated with a reduced risk. Logistic regression analysis indicated that rs7958311 was linked to an increased risk for nephropathy (OR = 1.833, p = 0.022), but with a decreased risk for peripheral artery disease (OR = 0.550, p = 0.042). Additionally, rs208294 was identified as a risk factor for peripheral neuropathy (OR = 2.101, p = 0.016).
Conclusions:
We found that P2X7 polymorphisms are significantly associated with the risk of T2DM and its complications, suggesting that targeting P2X7 may offer a novel therapeutic strategy for the prevention and personal treatment of T2DM.
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