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Oncotarget. 2017 Apr 7;8(31):50673-50679. doi: 10.18632/oncotarget.16929. eCollection 2017 Aug 1.

Association of genetic polymorphisms in IL-1R1 and IL-1R2 genes with IgA nephropathy in the Han Chinese population.

Author information

1
Department of Nephrology, Hainan General Hospital, Haikou Hainan 570311, China.
2
Central Laboratory, Hainan General Hospital, Haikou Hainan 570311, China.
#
Contributed equally

Abstract

AIM:

IgA nephropathy (IgAN) is the major cause of end-stage renal disease(ESRD) in Asia and its pathogenesis is influenced by both genetic and environmental factors. Single nucleotide polymorphisms (SNPs) in IL1R1 and IL-1R2 may be associated with susceptibility to IgAN. In this study, we study the association between genetic variants of IL-1R1 and IL-1R2 and IgA nephropathy risk in the Chinese Han population.

RESULT:

In the allelic model analysis, the rs10490571 and rs3917225 were associated with a 1.40-fold, and 1.31-fold increased risk of IgA nephropathy, respectively. In the genetic model analysis, the rs10490571 in IL1R1 was associated with a 1.46-fold increased risk of IgAN in the dominant model and 1.36-fold increased risk in the Log-additive model, respectively. However, the rs3218977 in IL1R2 was associated with a 0.71-fold decrease risk of IgAN in the dominant model and a 0.71-fold decrease risk in the over-dominant model, respectively. We found four SNPs (rs11674595, rs4851521, rs719250, and rs3218896) constructed four haplotypes in the IL1R2 gene and none of the haplotype was significantly associated with risk of IgAN.

MATERIALS AND METHODS:

A case-control study was conducted including 426 nephropathy patients and 463 healthy controls. Chi-squared tests and genetic model were used to evaluate associations.

>CONCLUSIONS:

These findings suggested that IL-1R1 and IL-1R2 polymorphisms may contribute to the development of IgAN.

KEYWORDS:

Chinese Han population; IL-1R1; IL-1R2; IgA nephropathy; genetics polymorphism

Conflict of interest statement

CONFLICTS OF INTEREST The authors have declared that no competing interest exists.

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