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| 1 | Management of chronic hepatitis B infection: Current treatment guidelines, challenges, and new developments显示文摘Chronic hepatitis B(CHB)virus infection is a global public health problem,affecting more than 400 million people worldwide.The clinical spectrum is wide,ranging from a subclinical inactive carrier state,to progressive chronic hepatitis,cirrhosis,decompensation,and hepatocellular carcinoma.However,complications of hepatitis B virus(HBV)-related chronic liver disease may be reduced by viral suppression.Current international guidelines recommend first-line treatment of CHB infection with pegylated interferon,entecavir,or tenofovir,but the optimal treatment for an individualpatient is controversial.The indications for treatment are contentious,and increasing evidence suggests that HBV genotyping,as well as serial on-treatment measurements of hepatitis B surface antigen and HBV DNA kinetics should be used to predict antiviral treatment response.The likelihood of achieving a sustained virological response is also increased by extending treatment duration,and using combination therapy.Hence the paradigm for treatment of CHB is constantly evolving.This article summarizes the different indications for treatment,and systematically reviews the evidence for the efficacy of various antiviral agents.It further discusses the shortcomings of current guidelines,use of rescue therapy in drug-resistant strains of HBV,and highlights the promising clinical trials for emerging therapies in the pipeline.This concise overview presents an updated practical approach to guide the clinical management of CHB. | Ceen-Ming Tang Tung On Yau Jun Yu | 2014 | World Journal of Gastroenterology2014，20，20： | 41 |
| 2 | Resistant mutants induced by adefovir dipivoxil in hepatitis B virus isolates显示文摘AIM:To investigate the loci of adefovir dipivoxil(ADV)-induced resistance in hepatitis B virus(HBV)isolates and optimize the management of ADV-treated patients.METHODS:Between June 2008 and August 2010,a cross-sectional control study was conducted comprising 79 patients with chronic HBV infection-related liver disease who had been administered ADV monotherapy.Patients underwent liver imaging.Serum DNA extracts were analyzed for HBV DNA levels,genotypes,and serology markers,and deep sequencing of the HBV P gene was performed.RESULTS:ADV-resistant patients were found either with a single mutated locus,or with coexisting mutated loci.The most prevalent mutations were rt A181T,rt V214A,and rt N236T.Twenty-six patients had more than two mutated loci.The mutants were distributed among the patients without any significant affinity for gender,age,end-stage of liver disease,complications of non-alcoholic fatty liver disease,or HBV DNA levels.Patients with the rt A181T mutant were primarily infected with genotype C and e-antigen negative HBV,while patients with the rt N236T mutant were primarily infected by genotype B HBV(χ2=6.004,7.159;P=0.023,0.007).The duration of treatment with ADV was shorter in the single mutant group compared with the multi-mutant group(t=2.426,P=0.018).CONCLUSION:Drug-resistant HBV mutants are complex and diverse.Patients should receive the standard and first-line antiviral treatment,strictly comply with medication dosage,and avoid short-term withdrawal. | Su-Wen Jiang Li-Peng Yao Ai-Rong Hu Yao-Ren Hu Shi-Xiang Chen Tao Xiong Guo-Sheng Gao Xiao-Yue Liang Shi-Xiong Ding Peng-Jian Weng | 2014 | World Journal of Gastroenterology2014，20，45： | 12 |
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