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A candidate gene study for the association of host single nucleotide polymorphisms with liver cirrhosis risk in chinese hepatitis B patients.

Abstract：

BACKGROUND AND AIMS:Recently, genetic association studies have linked a number of single nucleotide polymorphisms (SNPs) with liver fibrosis risk of hepatitis C. The present study was designed to validate the association of emerging SNPs with development of liver cirrhosis and chronicity in a Chinese population infected with hepatitis B virus (HBV). METHODS:714 Chinese subjects with persistent HBV infection (429 with evident liver cirrhosis and 285 without cirrhosis clinically or pathologically) and 280 subjects with spontaneous HBV clearance were studied. Six SNPs in five candidate genes were detected with the matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) method. The distribution of each polymorphism was compared between the age-matched cirrhotic and noncirrhotic subjects, and between subjects with persistent infection and spontaneous HBV clearance. RESULTS:The rs2679757 polymorphism of antizyme inhibitor 1 (AZIN1) gene was associated with the risk of cirrhosis (odds ratio [OR] for GG+AG versus AA=1.47, 95% confidence interval [CI]=1.08-2.01, p=0.01). So was rs886277 in the transient receptor potential cation channel subfamily M, member 5 (TRPM5) gene (OR for CC versus CT+TT=1.63, 95% CI=1.20-2.22, p=0.002). The frequencies of these two SNPs were also associated with the severity of decompensated cirrhosis based on the Child-Pugh classification. Genotype frequencies of other SNPs were not different between the cirrhotic and noncirrhotic groups. No SNPs were associated with the outcome of spontaneous HBV clearance. CONCLUSIONS:AZIN1 rs2679757 and TRPM5 rs886277 are associated with the risk of HBV-related liver cirrhosis in Chinese. The emerging SNPs warrant further clinical validation in other cohorts or ethnic groups, and could lead to mechanistic studies to reveal their contributions to fibrosis progression.

journal_name

Genet Test Mol Biomarkers

journal_title

Genetic testing and molecular biomarkers

authors

Peng L,Guo J,Zhang Z,Liu L,Cao Y,Shi H,Wang J,Wang J,Friedman SL,Sninsky JJ

doi

10.1089/gtmb.2013.0058

subject

Has Abstract

pub_date

2013-09-01 00:00:00

pages

681-6

issue

eissn

1945-0265

issn

1945-0257

journal_volume

pub_type

临床试验,杂志文章,多中心研究

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A candidate gene study for the association of host single nucleotide polymorphisms with liver cirrhosis risk in chinese hepatitis B patients.