Complete genome sequence of hepatitis B virus (HBV) from a patient with fulminant hepatitis without precore and core promoter mutations: comparison with HBV from a patient with acute hepatitis infected from the same infectious source

被引:26
作者
Chen, Y
Michitaka, K [1 ]
Matsubara, H
Yamamoto, K
Horiike, N
Onji, M
机构
[1] Ehime Univ, Sch Med, Dept Internal Med 3, Shigenobu, Ehime 7910295, Japan
[2] Ehime Univ, Sch Med, Endoscopy Ctr, Shigenobu, Ehime 7910295, Japan
[3] Matsuyama Shimon Hosp, Dept Gastroenterol, Matsuyama, Ehime, Japan
关键词
hepatitis B virus; fulminant hepatitis; precore mutation; core promoter mutation; hepatitis B virus genotype; genotype D; infectious source;
D O I
10.1016/S0168-8278(02)00325-2
中图分类号
R57 [消化系及腹部疾病];
学科分类号
摘要
Background/Aims: There is a paucity of information regarding hepatitis B virus (HBV) from patients with fulminant hepatitis (FH) without precore (pre-C, nt 1896) and core promoter (CP, nt 1762, 1764) mutations. Methods: Pre-C and CP mutations were studied in eight patients with FH and 26 patients with acute hepatitis (AH) due to HBV. One patient with FH (FH1) was infected with HBV without these mutations. Interestingly, the sera of the infectious source (IS1) and of a patient with AH (AH1) infected from IS1 were available. Complete HBV genomes from these three patients were analyzed. Results: These mutations were found in seven of eight FH and five of 26 AH (P < 0.01). HBV from FH1, IS1 and AH1 belonged to genotype D. Nucleotide difference between FH1 and AH1 was six of 3182 bases (nt 493, 998, 1173, 2928, 3067, and 3078). Two and five substitutions of deduced amino acid sequences were found in the pre-S1 and polymerase regions, respectively. The same nucleotide substitutions at nt 493, 1173, 2928 and 3067 were found in several patients with FH in our laboratory or GenBank. Conclusions: These six nucleotide substitutions of HBV DNA could be candidates of mutations relating to FH. (C) 2002 European Association for the Study of the Liver. Published by Elsevier Science B.V. All rights reserved.
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页码:84 / 90
页数:7
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