1.Association of baseline alanine aminotransferase levels with therapeutic effects of entecavir and interferon- in patients with chronic hepatitis B.
Zhiqi XIAO ; Fuyuan ZHOU ; Bin ZHOU ; Jie YANG
Journal of Southern Medical University 2019;39(2):150-155
OBJECTIVE:
To evaluate the therapeutic effects of entecavir (ETV) and interferon- (IFN-) treatments for 48 weeks for chronic hepatitis B (CHB) in patients with different baseline alanine aminotransferase (ALT) levels.
METHODS:
We retrospectively analyzed the data of 369 CHB patients receiving ETV and IFN- treatments for 48 weeks. We compared the virological response rates, HBsAg clearance, and HBsAg reduction between the patients receiving ETV and IFN- treatments with different baseline ALT levels[≤ 5×upper limits of normal (ULN) level (subgroup 1), 5-10×ULN (subgroup 2), and > 10× ULN (subgroup 3)].
RESULTS:
In patients receiving ETV treatment, the virological response rate was 83.3% in subgroup 1, 91.4% in subgroup 2, and 95.5% in subgroup 3, as compared with 19.7%, 40%, and 42.9% in the 3 subgroups with IFN- treatment, respectively, showing significantly differences both among different subgroups with the same treatment and between the same subgroup with different treatments ( < 0.05). HBeAg clearance rates in the 3 subgroups were 8.3%, 16.7% and 35.5% in patients with ETV treatment and were 1.8%, 41.9%, and 38.1% in patients with IFN- treatment, respectively, showing significant differences among the 3 subgroups with the same treatment ( < 0.05); in the same subgroups with different treatments, the rates differed significantly only between subgroups 2 ( < 0.05). In ETV group, the rate of HBsAg reduction to below 200 IU/ml was 2.5% in subgroup 1 and 13.8% in subgroup 2, showing no significant difference between the two subgroups; in IFN- group, the rates were also similar between subgroups 1 and 2 (30.6% 33.3%, > 0.05); but the rates differed significantly between the same subgroups with different treatments ( < 0.05).
CONCLUSIONS
In all the subgroups with different baseline ALT levels, ETV treatment for 48 weeks results in significantly higher virological response rates than IFN- treatment in patients with CHB. In patients with a baseline ALT of 5-10 ×ULN, IFN- can result in a higher HBeAg clearance rate than ETV. In patients with comparable baseline ALT level, IFN- more effectively reduces HBsAg level than ETV. The patients with a relatively high baseline ALT level (> 5 × ULN) show better responses to both ETV and IFN- treatment than those with ALT level below 5×ULN. We thus recommend IFN- for patients with a baseline ALT of 5-10×ULN and ETV for patients with a baseline ALT either below 5 × ULN or beyond 10×ULN.
Alanine Transaminase
;
blood
;
Antiviral Agents
;
therapeutic use
;
DNA, Viral
;
Guanine
;
analogs & derivatives
;
therapeutic use
;
Hepatitis B Surface Antigens
;
blood
;
Hepatitis B e Antigens
;
blood
;
Hepatitis B virus
;
immunology
;
Hepatitis B, Chronic
;
drug therapy
;
enzymology
;
immunology
;
virology
;
Humans
;
Interferon-alpha
;
therapeutic use
;
Retrospective Studies
;
Time Factors
;
Treatment Outcome
;
Viral Load
;
drug effects
2.Obesity and hepatocellular carcinoma in patients receiving entecavir for chronic hepatitis B.
Jaemin LEE ; Sun Hong YOO ; Won SOHN ; Hyung Woo KIM ; Yong Sun CHOI ; Jung Ho WON ; Jin Young HEO ; Sang Jong PARK ; Young Min PARK
Clinical and Molecular Hepatology 2016;22(3):339-349
BACKGROUND/AIMS: This study aimed to clarify the effect of obesity on the development of hepatocellular carcinoma (HCC) in chronic hepatitis B (CHB) patients receiving antiviral treatment. METHODS: This study applied a retrospective analysis to a historical cohort in Bundang Jesaeng Hospital. In total, 102 CHB patients were treated with entecavir as an initial treatment for CHB and checked for obesity using a body composition analyzer. Hepatic steatosis was measured semiquantitatively using Hamaguchi’s scoring system in ultrasonography. Risk factors for the development of HCC were analyzed, including obesity-related factors (body mass index [BMI], waist circumference [WC], waist-to-hip ratio [WHR], visceral fat area [VFA], and hepatic steatosis). RESULTS: The median follow-up duration of the patients was 45.2 months (interquartile range: 36.0-58.3 months). The cumulative incidence rates of HCC at 1 year, 3 years, and 5 years were 0%, 5.3%, and 9.0%, respectively. Univariable analysis revealed that the risk factors for HCC development were a platelet count of <120,000 /mm² (hazard ratio [HR]=5.21, P=0.031), HBeAg negativity (HR=5.61, P=0.039), and liver cirrhosis (HR=10.26, P=0.031). Multivariable analysis showed that the significant risk factor for HCC development was liver cirrhosis (HR=9.07, P=0.042). However, none of the obesity-related risk factors were significantly associated with HCC: BMI ≥25 kg/m² (HR=0.90, P=0.894), WC ≥90 cm (HR=1.10, P=0.912), WHR ≥0.9 (HR=1.94, P=0.386), VFA ≥100 cm² (HR=1.69, P=0.495), and hepatic steatosis (HR=0.57, P=0.602). CONCLUSION: HCC development is associated with liver cirrhosis but not obesity-related factors in CHB patients receiving entecavir.
Adult
;
Antiviral Agents/*therapeutic use
;
Body Mass Index
;
Carcinoma, Hepatocellular/epidemiology/*etiology
;
Cohort Studies
;
DNA, Viral/blood
;
Female
;
Guanine/*analogs & derivatives/therapeutic use
;
Hepatitis B virus/genetics/isolation & purification
;
Hepatitis B, Chronic/complications/*drug therapy/virology
;
Humans
;
Incidence
;
Liver Cirrhosis/complications
;
Liver Neoplasms/epidemiology/*etiology
;
Male
;
Middle Aged
;
Obesity/*complications
;
Proportional Hazards Models
;
Retrospective Studies
;
Risk Factors
;
Viral Load
3.Regression of esophageal varices during entecavir treatment in patients with hepatitis-B-virus-related liver cirrhosis.
Hye Young JWA ; Yoo Kyung CHO ; Eun Kwang CHOI ; Heung Up KIM ; Hyun Joo SONG ; Soo Young NA ; Sun Jin BOO ; Seung Uk JEONG ; Bong Soo KIM ; Byoung Wook LEE ; Byung Cheol SONG
Clinical and Molecular Hepatology 2016;22(1):183-187
Recent studies suggest that liver cirrhosis is reversible after administering oral nucleos(t)ide analogue therapy to patients with hepatitis B virus (HBV) infection. However, few studies have addressed whether esophageal varices can regress after such therapy. We report a case of complete regression of esophageal varices during entecavir therapy in patients with HBV-related liver cirrhosis, suggesting that complications of liver cirrhosis such as esophageal varices can regress after the long-term suppression of HBV replication.
Abdomen/diagnostic imaging
;
Antiviral Agents/*therapeutic use
;
DNA, Viral/blood
;
Esophageal and Gastric Varices/complications/prevention & control
;
Guanine/*analogs & derivatives/therapeutic use
;
Hepatitis B virus/genetics
;
Hepatitis B, Chronic/complications/*drug therapy/virology
;
Humans
;
Liver Cirrhosis/*diagnosis/etiology
;
Male
;
Middle Aged
;
Polymerase Chain Reaction
;
Ultrasonography
4.The efficacy of tenofovir-based therapy in patients showing suboptimal response to entecavir-adefovir combination therapy.
Jeong Han KIM ; Sung Hyun AHN ; Soon Young KO ; Won Hyeok CHOE ; Kyun Hwan KIM ; So Young KWON
Clinical and Molecular Hepatology 2016;22(2):241-249
BACKGROUND/AIMS: Before tenofovir (TDF) become available in South Korea, combination therapy with entecavir (ETV) and adefovir (ADV) was the most potent regimen for chronic hepatitis B (CHB) patients who fail to respond to rescue therapy for drug resistance. We analyzed the efficacy of ETV-ADV combination therapy and investigated the clinical and clonal results of TDF-based rescue therapy in CHB patients refractory to this combination. METHODS: We retrospectively reviewed the medical records of CHB patients treated for up to 3 years with ETV-ADV combination therapy as a rescue therapy for drug resistance. In cases refractory to this combination, clinical and clonal analyses were performed for TDF-based rescue therapy. RESULTS: The analysis was performed on 48 patients. Twelve patients achieved a virological response (VR) within 3 years. A VR was subsequently achieved in nine of the ten patients without a VR who switched to TDF monotherapy. A VR was also achieved in six of the seven patients who switched to lamivudine-TDF combination therapy, and in two of the two patients who switched to ETV-TDF combination therapy. In an in vitro susceptibility test, viral replication was detected with TDF monotherapy but not with ETV-TDF combination therapy. CONCLUSIONS: The efficacy of ETV-ADV combination therapy was insufficient in CHB patients who were refractory to rescue therapy. A more potent regimen such as ETV-TDF combination therapy may be considered in such refractory cases.
Adenine/*analogs & derivatives/therapeutic use
;
Adult
;
Aged
;
Antiviral Agents/*therapeutic use
;
DNA, Viral/analysis/metabolism
;
Drug Resistance, Viral
;
Drug Therapy, Combination
;
Female
;
Guanine/*analogs & derivatives/therapeutic use
;
Hepatitis B virus/genetics/isolation & purification
;
Hepatitis B, Chronic/*drug therapy/virology
;
Humans
;
Male
;
Middle Aged
;
Organophosphonates/*therapeutic use
;
Polymerase Chain Reaction
;
Republic of Korea
;
Retrospective Studies
;
Tenofovir/*therapeutic use
;
Treatment Outcome
5.The efficacy of tenofovir-based therapy in patients showing suboptimal response to entecavir-adefovir combination therapy.
Jeong Han KIM ; Sung Hyun AHN ; Soon Young KO ; Won Hyeok CHOE ; Kyun Hwan KIM ; So Young KWON
Clinical and Molecular Hepatology 2016;22(2):241-249
BACKGROUND/AIMS: Before tenofovir (TDF) become available in South Korea, combination therapy with entecavir (ETV) and adefovir (ADV) was the most potent regimen for chronic hepatitis B (CHB) patients who fail to respond to rescue therapy for drug resistance. We analyzed the efficacy of ETV-ADV combination therapy and investigated the clinical and clonal results of TDF-based rescue therapy in CHB patients refractory to this combination. METHODS: We retrospectively reviewed the medical records of CHB patients treated for up to 3 years with ETV-ADV combination therapy as a rescue therapy for drug resistance. In cases refractory to this combination, clinical and clonal analyses were performed for TDF-based rescue therapy. RESULTS: The analysis was performed on 48 patients. Twelve patients achieved a virological response (VR) within 3 years. A VR was subsequently achieved in nine of the ten patients without a VR who switched to TDF monotherapy. A VR was also achieved in six of the seven patients who switched to lamivudine-TDF combination therapy, and in two of the two patients who switched to ETV-TDF combination therapy. In an in vitro susceptibility test, viral replication was detected with TDF monotherapy but not with ETV-TDF combination therapy. CONCLUSIONS: The efficacy of ETV-ADV combination therapy was insufficient in CHB patients who were refractory to rescue therapy. A more potent regimen such as ETV-TDF combination therapy may be considered in such refractory cases.
Adenine/*analogs & derivatives/therapeutic use
;
Adult
;
Aged
;
Antiviral Agents/*therapeutic use
;
DNA, Viral/analysis/metabolism
;
Drug Resistance, Viral
;
Drug Therapy, Combination
;
Female
;
Guanine/*analogs & derivatives/therapeutic use
;
Hepatitis B virus/genetics/isolation & purification
;
Hepatitis B, Chronic/*drug therapy/virology
;
Humans
;
Male
;
Middle Aged
;
Organophosphonates/*therapeutic use
;
Polymerase Chain Reaction
;
Republic of Korea
;
Retrospective Studies
;
Tenofovir/*therapeutic use
;
Treatment Outcome
6.Dynamic Characteristics of Serum Hepatitis B Surface Antigen in Chinese Chronic Hepatitis B Patients Receiving 7 Years of Entecavir Therapy.
Xia-Xia ZHANG ; Min-Ran LI ; Hong-Li XI ; Ying CAO ; Ren-Wen ZHANG ; Yu ZHANG ; Xiao-Yuan XU
Chinese Medical Journal 2016;129(8):929-935
<b>BACKGROUNDb>The ultimate goal of hepatitis B treatment is hepatitis B surface antigen (HBsAg) seroclearance. Several factors have been suggested to be associated with the rate of HBsAg reduction in antiviral-naive or lamivudine therapy cohorts. However, there are few studies evaluating the factors during long-term entecavir (ETV) therapy. In the present study, we aimed to evaluate the factors to predict the outcome of ETV therapy for 7 years.
<b>METHODSb>A total of 47 chronic hepatitis B (CHB) patients treated with ETV monotherapy were included in this study. Liver biochemistry, hepatitis B virus (HBV) serological markers, serum HBV DNA, and HBsAg titers were tested at baseline, 3 months, 6 months, and yearly from 1 to 7. The associations between factors and HBsAg reduction were assessed using multivariate tests with repeated measure analysis of variance.
<b>RESULTSb>At baseline, serum HBsAg levels showed a positive correlation with baseline HBV DNA levels (r = 0.625, P < 0.001). The mean HBsAg titers after ETV treatment were significantly lower than the baseline titers (P ranges from 0.025 to 0.000,000,6). The HBsAg reduction rate during the 1st year was greater compared to after 1 year of treatment (P < 0.05). Multivariate test showed that hepatitis B e antigen (HBeAg) seroclearance and/or HBsAg reduction ≥0.5 log10 IU/ml at 6 months had a high negative predictive value (96.77%) for HBsAg seroclearance (P = 0.002, P = 0.012, respectively).
<b>CONCLUSIONSb>The HBsAg reduction rate during the 1st year was greater than that after 1 year of treatment. Further, HBeAg status and HBsAg levels at month 6 are the optimal factors for the early prediction of HBsAg seroclearance after long-term ETV therapy in CHB patients.
Adult ; Antiviral Agents ; therapeutic use ; DNA, Viral ; blood ; Female ; Guanine ; analogs & derivatives ; therapeutic use ; Hepatitis B Surface Antigens ; blood ; Hepatitis B e Antigens ; blood ; Hepatitis B, Chronic ; drug therapy ; virology ; Humans ; Male ; Middle Aged
7.Efficacy Observation of Yiguanjian Decoction Combined Adefovir Dipivoxil Tablet in Treating HBeAg Negative Chronic Viral Hepatitis B Active Compensated Liver Cirrhosis Patients.
Shu-hong DUAN ; Zhong-ying BAO ; Xiao-dong YUAN ; Lei WANG ; Mei-sheng LIU
Chinese Journal of Integrated Traditional and Western Medicine 2016;36(5):535-538
<b>OBJECTIVEb>To explore clinical efficacy of Yiguanjian Decoction (YD) combined Adefovir Dipivoxil Tablet (ADT) in treating HBeAg negative chronic viral hepatitis B (CVHB) active compensated liver cirrhosis (LC) patients.
<b>METHODSb>Totally 68 HBeAg negative CVHB active compensated LC patients initially treated were assigned to the treatment group and the control group using random digit table, 34 in each group. Patients in the control group took ADT alone, 10 mg each time, once per day. Those in the treatment group additionally took YD, one dose per day. The therapeutic course for all was 48 weeks. Levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TBil) were detected once in every two weeks. Hepatitis B virus (HBV)-DNA and four items of serum liver fibrosis [procollagen type I (PCN), hyaluronidase (HA), procollagen III peptide (PCIII), laminin (LN)] were detected once per every 4 weeks. Abdominal ultrasound B was performed before and after treatment. The inner diameter of the portal vein and the size of spleen were recorded. The fibrosis degree of liver was evaluated using Fibroscan. Efficacy of Chinese medicine (CM) was evaluated between the two groups before and after treatment using CM syndrome integrals. Efficacy of Western medicine (WM) was also evaluated between the two groups using Child-Pugh grading. Results Compared with before treatment in the same group, ALT and AST levels restored to normal levels, HBV-DNA turned negative (HBV-DNA < or = 1 x 10(2)) in the two groups after 48-week treatment. Besides, levels of TBil, ALB, PCIV, HA, PCIII, and LN obviously decreased (P < 0.05, P < 0.01). Results of ultrasound B showed the inner diameter of the portal vein and the size of spleen decreased. Fibroscan results showed that the elasticity value of the liver obviously decreased (P < 0.05). Besides, post-treatment levels of PCIV, HA, PCEJ, and LN, and the elasticity value of the liver decreased more obviously in the treatment group than in the control group (P < 0.01). There was no statistical difference in post-treatment levels of ALT, AST, TBil, ALB, inner diameter of the portal vein, or the size of spleen between the two groups (P > 0.05). Compared with before treatment in the same group, scores of Chinese medical syndrome and Child-Pugh scores decreased in the two groups after treatment (P < 0.05, P < 0.01). Besides, scores of Chinese medical syndrome decreased more obviously in the treatment group than in the control group (P < 0.05). The effective rate was 8824% (30/34) in the treatment group, higher than that of the control group [67.65% (23/34)] with statistical difference (P <0.05). Conclusion Combined treatment of YD and ADT could significantly improve symptoms of CM and fibrosis degree of liver of HBeAg negative CVHB active compensated LC patients.
Adenine ; analogs & derivatives ; therapeutic use ; Alanine Transaminase ; blood ; Antiviral Agents ; therapeutic use ; Aspartate Aminotransferases ; blood ; Bilirubin ; blood ; DNA, Viral ; blood ; Drugs, Chinese Herbal ; therapeutic use ; Hepatitis B e Antigens ; blood ; Hepatitis B, Chronic ; drug therapy ; Humans ; Liver Cirrhosis ; drug therapy ; virology ; Organophosphonates ; therapeutic use ; Tablets
8.Short-term efficacy of treating hepatitis B virus-related acute-on-chronic liver failure based on cold pattern differentiation with hot herbs: A randomized controlled trial.
Yu-Ming GUO ; Feng-Yi LI ; Man GONG ; Lin ZHANG ; Jia-Bo WANG ; Xiao-He XIAO ; Jun LI ; Yan-Ling ZHAO ; Li-Fu WANG ; Xiao-Feng ZHANG
Chinese journal of integrative medicine 2016;22(8):573-580
<b>OBJECTIVEb>To evaluate the clinical efficacy and safety of Yinchen Zhufu Decoction (, YCZFD) in the treatment of acute-on-chronic liver failure caused by hepatitis B virus (HBV-ACLF) with cold pattern in Chinese medicine (CM).
<b>METHODSb>This is a multi-center randomized controlled trial of integrative treatment of CM and Western medicine (WM) for the management of HBV-ACLF patients. A total of 200 HBV-ACLF patients with cold pattern were equally randomly assigned to receive YCZFD and WM (integrative treatment) or WM conventional therapy alone respectively for 4 weeks. The primary end point was the mortality for HBV-ACLF patients. Secondary outcome measures included Model for End-Stage Liver disease (MELD) score, liver biochemical function, coagulation function and complications. Adverse events during treatment were reported.
<b>RESULTSb>The mortality was decreased 14.28% in the integrative treatment group compared with WM group (χ(2) =6.156, P=0.013). The integrative treatment was found to signifificantly improve the MELD score (t=2.353, P=0.020). There were statistically signifificant differences in aspartate transaminase, total bilirubin, indirect bilirubin, direct bilirubin and prothrombin time between the two groups (P<0.05 or P<0.01). The complications of ascites (χ(2)=9.033, P=0.003) and spontaneous bacteria peritonitis (χ(2)=4.194, P=0.041) were improved signifificantly in the integrative treatment group. No serious adverse event was reported.
<b>CONCLUSIONSb>The integrative treatment of CM and WM was effective and safe for HBV-ACLF patients with cold pattern in CM. The Chinese therapeutic principle "treating cold pattern with hot herbs" remains valuable to the clinical therapy. (Trial registration No. ChiCTR-TRC-10000766).
Acute-On-Chronic Liver Failure ; complications ; drug therapy ; mortality ; virology ; Adult ; Ascites ; complications ; Demography ; Drugs, Chinese Herbal ; adverse effects ; pharmacology ; therapeutic use ; Electrolytes ; Female ; Hepatitis B ; complications ; drug therapy ; mortality ; physiopathology ; Hepatitis B virus ; physiology ; Humans ; Integrative Medicine ; Liver ; drug effects ; pathology ; physiopathology ; virology ; Liver Function Tests ; Male ; Peritonitis ; complications ; Time Factors ; Treatment Outcome
9.Efficacy of Tenofovir-based Rescue Therapy for Patients with Drug-resistant Chronic Hepatitis B.
Kanghyug CHOI ; Han Min LEE ; Baek Gyu JUN ; Sae Hwan LEE ; Hong Soo KIM ; Sang Gyune KIM ; Young Seok KIM ; Boo Sung KIM ; Soung Won JEONG ; Jae Young JANG ; Young Don KIM ; Gab Jin CHEON
The Korean Journal of Gastroenterology 2015;65(1):35-42
BACKGROUND/AIMS: Tenofovir disoproxil fumarate (TDF) plays a pivotal role in the management of drug-resistant chronic hepatitis B. However, it remains unclear whether TDF-nucleoside analogue combination therapy provides better outcomes than TDF monotherapy. This study aimed to compare the efficacy of TDF monotherapy with that of TDF-nucleoside analogue combination therapy in patients with drug-resistant chronic hepatitis B. METHODS: This retrospective cohort study included 76 patients receiving TDF-based rescue therapy for more than 12 months. Suboptimal response was defined as serum HBV-DNA level of >60 IU/mL during prior rescue therapy. Multi-drug resistance was defined as the presence of two or more drug resistance-related mutations confirmed by mutation detection assay. The relationship between baseline characteristics and virologic response (HBV DNA <20 IU/mL) at 12 months were evaluated using logistic regression analysis. RESULTS: Fifty-five patients (72.4%) were suboptimal responders to prior rescue therapy, and 26 (34.2%) had multi-drug resistance. Forty-two patients (55.3%) received combination therapy with nucleoside analogues. Virologic response at 12 months was not significantly different between the TDF monotherapy group and TDF-nucleoside analogue combination therapy group (p=0.098). The serum HBV DNA level was reduced to -4.49+/-1.67 log10 IU/mL in the TDF monotherapy group and to -3.97+/-1.69 log10 IU/mL in the TDF-nucleoside analogue combination therapy group at 12 months (p=0.18). In multivariate analysis, female sex (p=0.032), low baseline HBV-DNA level (p=0.013), and TDF monotherapy (p=0.046) were predictive factors for virologic response at 12 months. CONCLUSIONS: TDF monotherapy showed similar efficacy to that of TDF-nucleoside analogue combination therapy in patients with drug-resistant chronic hepatitis B.
Adult
;
Aged
;
Antiviral Agents/pharmacology/*therapeutic use
;
Cohort Studies
;
DNA, Viral/blood
;
Drug Resistance, Viral
;
Drug Therapy, Combination
;
Female
;
Hepatitis B virus/drug effects/genetics/isolation & purification
;
Hepatitis B, Chronic/*drug therapy/virology
;
Humans
;
Logistic Models
;
Male
;
Middle Aged
;
Multivariate Analysis
;
Nucleosides/chemistry/therapeutic use
;
Retrospective Studies
;
Sex Factors
;
Tenofovir/*therapeutic use
;
Treatment Outcome
;
Young Adult
10.The drug resistance mutation detection and relevant factors analysis of HBV P region in chronic hepatitis B patients in Weifang City, Shandong Province.
Chinese Journal of Virology 2015;31(1):14-17
In order to investigate the mutation of HBV polymerase gene reverse transcription conserved region (P region) in chronic hepatitis B (CHB) patients, 212 CHB patients who took antiretroviral treatment with nucleotide analogues were chosen. The drug resistance mutations of HBV P region and HBV genotype were detected by Pyrosequencing. Sequence analysis showed that the drug resistance sites of HBV P region located at sites 173; 180; 181; 184; 204; 236 and 250. The main site of HBV P region drug resistance was 204 and 180, accounting for 35.8% and 23.5%, respectively. There were significant differences in the mutation rate of site 180 among different age groups. There were also significant differences in the mutation rate of site 204 among younger than 30 age group, 41 to 50 age group and 51 to 60 age group. (P < 0.05, P < 0.01). The mutation rate of site 180 combined with site 204 was 66.6%. The mutation rate of site 181 combined with site 236 was 23.3%. The age of C genotype infected patients was significantly older than B genotype infected patients (P < 0.01). M204V/I mutation mostly existed in the form of joint L180M mutation, the mutation rate was age-related. The detection of HBV genotypes and drug resistance sites of HBV P region have important clinical implications for the treatment and prognosis of patients with CHB.
Adult
;
Aged
;
Antiviral Agents
;
pharmacology
;
China
;
Drug Resistance, Viral
;
Female
;
Gene Products, pol
;
genetics
;
Genotype
;
Hepatitis B virus
;
classification
;
drug effects
;
enzymology
;
genetics
;
Hepatitis B, Chronic
;
drug therapy
;
virology
;
Humans
;
Male
;
Middle Aged
;
Mutation, Missense
;
Young Adult

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