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Correlations between mitochondrial DNA haplogroup D5 and chronic hepatitis B virus infection in Yunnan, China.
Scientific Reports ( IF 4.6 ) Pub Date : 2018-01-17 , DOI: 10.1038/s41598-018-19184-6
Xiao Li , Tai-Cheng Zhou , Chang-Hui Wu , Li-Lin Tao , Rui Bi , Li-Jun Chen , De-Yao Deng , Chang Liu , Newton O. Otecko , Yang Tang , Xin Lai , Liang Zhang , Jia Wei

Mitochondrial abnormality is frequently reported in individuals with hepatitis B virus (HBV) infection, but the associated hosts' mitochondrial genetic factors remain obscure. We hypothesized that mitochondria may affect host susceptibility to HBV infection. In this study, we aimed to detect the association between chronic HBV infection and mitochondrial DNA in Chinese from Yunnan, Southwest China. A total of 272 individuals with chronic HBV infection (CHB), 310 who had never been infected by HBV (healthy controls, HC) and 278 with a trace of HBV infection (spontaneously recovered, SR) were analysed for mtDNA sequence variations and classified into respective haplogroups. Haplogroup frequencies were compared between HBV infected patients, HCs and SRs. Haplogroup D5 presented a higher frequency in CHBs than in HCs (P = 0.017, OR = 2.87, 95% confidence interval [CI] = (1.21-6.81)) and SRs (P = 0.049, OR = 2.90, 95% CI = 1.01-8.35). The network of haplogroup D5 revealed a distinct distribution pattern between CHBs and non-CHBs. A trend of higher viral load among CHBs with haplogroup D5 was observed. Our results indicate the risk potential of mtDNA haplogroup D5 in chronic HBV infection in Yunnan, China.
更新日期:2018-01-17
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