• Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P. R. China;
CHEN Jie, Email: chenjie_wch@163.com
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Objective To explore the single locus mutation that related to hepatitis B virus (HBV) co-infection by means of genome-wide association study (GWAS) in Chinese Han patients with pulmonary tuberculosis (TB).Methods A total of 946 patients with pulmonary TB enrolled between March 2013 and March 2018 were genotyped by Illumina Human Omni Express gene chip. After quality control, 389 972 single nucleotide polymorphisms (SNPs) of 703 patients with single TB infection and 53 patients with TB-HBV co-infection were included in the follow-up association analysis.Results The SNP with the strongest statistical correlation signal was rs118122819 (P=2.923×10−12, odds ratio=7.933) located on chromosome 8p23.1. Other potential susceptibility genes included CDH4 (rs73309833), MARCH1 (rs3797020), and DNER (rs13393112), etc. In addition, a strong linkage imbalance between rs118122819 and rs4840365 (D’=0.88, r2=0.76) was found, while rs4840365 was located in the MFHAS1 gene region.Conclusions This study provides evidence for the presence of susceptibility gene locus for HBV co-infection in pulmonary TB patients, and provides important clues for the mechanism research, disease prevention, and treatment of co-infection. But these associations must be replicated and validated in larger studies.

Citation: YANG Xujie, JIAO Lin, BAI Hao, CHEN Jie, WU Qian, ZHAO Zhenzhen, MENG Zirui. Genome-wide association analysis of genetic susceptibility to hepatitis B virus co-infection in patients with pulmonary tuberculosis. West China Medical Journal, 2019, 34(8): 885-889. doi: 10.7507/1002-0179.201907070 Copy

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