TNFR 2 M196R polymorphism and acne vulgaris in Han Chinese: A case-control study

Abstract

In this case-control study, the relationship between M196R (676 T→G) variant in exon 6 of tumor necrosis factor receptor type 2 ( TNFR2 ) gene and genetic susceptibility of acne vulgaris in Han Chinese was investigated. A total of 93 acne vulgaris patients and 90 healthy subjects from Han Chinese ethnic group were enrolled in this study. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique was adopted to analyze the single nucleotide polymorphisms (SNPs) of TNFR2 M196R gene, and to examine the association between acne vulgaris and the polymorphisms in TNFR2 M196R gene. The relationship between different genotypes and the susceptibility of acne vulgaris was analyzed. The results showed that there was significant difference in the frequency of the genotype M/R+R/R in the TNFR2 M196R genetic polymorphisms between acne vulgaris patients and healthy controls (χ²=4.343; P=0.037; OR=1.899; 95% CI: 1.036–3.445); and there was significant difference in the allele (R) frequency between acne vulgaris patients and healthy controls (χ²=5.588; P=0.018; OR=1.838; 95% CI: 1.105–3.057). It was concluded that the high frequency of 196R allele in the functional M196R polymorphism of TNFR2 is a risk factor for acne vulgaris in Han Chinese.

Keywords

acne vulgaris / cytokine / polymorphism / TNFR2

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