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Ren Fail. 2010;32(10):1172-6. doi: 10.3109/0886022X.2010.516857.

Effect of IL-6 C-572G polymorphism on idiopathic membranous nephropathy risk in a Han Chinese population.

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Department of Medical Research, Genetic Center, China Medical University Hospital, Taichung, Taiwan, Republic of China.


Membranous glomerulonephritis (MGN) is viewed as an immune-mediated glomerular disease, with immunologic expression occurring in genetically susceptible persons. The cytokine interleukin-6 (IL-6) gene polymorphism is known to impair intracellular signaling pathways following adaptive immune response. Our study gauged the effects of IL-6 C-572G (rs1800796) single nucleotide polymorphism (SNP) on MGN among Taiwan's Han Chinese population, as analyzed in 265 controls and 106 MGN patients. Genotyping for IL-6 C-572G SNP was performed by restriction fragment length polymorphism assay. Data showed stark differences in genotype and allele frequency distributions at IL-6 C-572G SNP between MGN patients and controls (p = 1.6E-04 and 1.7E-04, respectively). People with C allele or with CC genotype at IL-6 C-572G SNP showed higher risk of MGN (odds ratio = 2.42 and 2.71, respectively; 95% confidence interval = 1.51-3.87 and 1.60-4.60, respectively). These point to IL-6 C-572G polymorphism as the underlying cause of MGN; polymorphism merits further investigation.

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