RESUMEN
Elimination of HBV cccDNA from hepatocytes infected with chronic HBV virus is considered to be the key to eradicating HBV. Monitoring HBV cccDNA before, during, and after viral treatment is essential for routine treatment of patients with chronic hepatitis B. With the introduction of new anti-HBV treatment technologies and new drugs targeting HBV cccDNA, Accurate and sensitive HBV cccDNA assays are urgently needed to evaluate efficacy. In recent years, HBV cccDNA detection methods have achieved gratifying results in both traditional PCR methods and digital PCR methods popular in recent years. In this paper, the advances in HBV cccDNA quantitative detection by qPCR, Magnetic bead capture hybridization, rolling circle amplification combined with in situ PCR, digital PCR and digital PCR assay in single cells were reviewed.
RESUMEN
Objective To analyze the relationship between hepatitis B virus gene mutation at site 1896 in precore region and genotypes as well as liver function parameters. Methods The fluorescent quantitative PCR and sequencing method were applied to measuring the relevant indicators in 50 patients with chronic hepatitis B. Results There was significant difference in ALT level between hepatitis B patients with site 1896 mutation and ones with wild-type; and HBV mutation at site 1896 in precore region was unrelated to the genotypes. Conclusion HBV mutation at site 1896 in precore region may be associated with continous viral invasion invasion into hepatocytes.