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  • Title: [Relationship between B virus hepatitis genotypes and therapeutic efficacy in early treatment for chronic hepatitis B by using lamivudine].
    Author: Song SJ, Zhuang H, Yan J, Wei HS, He ZP, Song C, Dong QM, Xiao YP.
    Journal: Zhonghua Yu Fang Yi Xue Za Zhi; 2005 May; 39(3):203-5. PubMed ID: 15938857.
    Abstract:
    OBJECTIVE: To investigate the relationship between hepatitis B virus (HBV) genotype and therapeutic efficacy during the early phase of lamivudine treatment. METHODS: Totally 595 patients with chronic hepatitis B were treated with lamivudine 100 mg/day for 12 months. HBV genotypes, contents of HBV DNA, HBeAg/anti-HBe and YMDD mutation after lamivudine treatment for 12 months were determined. The data were analyzed with SPSS software. RESULTS: In 595 patients, 8 (1.4%) were genotype A; 53 (8.9%) genotype B; 360 (60.5%) genotype C; 112 (18.8%) were coinfection of genotype B and C; 14 (2.4%) of A and C; 15 (2.5%) A and B; 6 (1.0%) of A, B, and C, and remaining 27 (4.5%) were unspecified. Patients were treated with lamivudine 100 mg/day for 12 months. Genotype B with HBV DNA levels turned to be negative (HBV DNA < 0.1 ng/L) was 87.2%, genotype C was 89.51%, coinfection of genotype B and C was 93.04% (P > 0.05). HBeAg seroconversion of genotype B was 11.65%, of genotype C was 20.64%, and of coinfection of genotype B and C was 18.57% (P > 0.05). All 69 strains of YMDD mutation were detected after lamivudine treatment for 12 months, in which genotype B was in 16.98%, genotype C in 15.38%, and coinfection of genotype B and C was in 13.86% (P > 0.05). CONCLUSION: There was no difference in HBV genotypes and the rate of development of YMDD mutations, HBeAg seroconversion, descending of HBV DNA level in Chinese patients with chronic hepatitis B.
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