A STUDY OF HEPATITIS B VIRUS GENOTYPES IN CHRONIC HEPATITIS B PATIENTS

2011 ◽  
pp. 25-29
Author(s):  

Aims: To measure the prevalence of HBV genotypes in chronic hepatitis B patients and their relation to HBeAg and HBV DNA level. Methods: 81 patients were enrolled in this study from January 2009 to December 2010. Clinical, laboratory data were collected during the patient’s hospitalization. Sera were quantitatively tested for HBeAg and HBV DNA. HBV genotyping was made by real-time PCR. Results: Among the 81 patients, 60.5% had genotype B, 26.7% had genotype C and 8.6% had mixed genotype B-C. Prevalence of symptoms (fatigue, anorexia, insomnia...) was higher in genotype C than in genotype B. Genotype C patients had positivity higher HBeAg than genotype B patients (56% vs. 38,8%, p <0.05). The rate of HBV DNA > 107 copies/mL was higher in genotype C group than in genotype B group (36% vs. 28,6%, p > 0.05). Conclusions: Most of the patients had genotypes B or C. Patients with genotype C had positive HBeAg and may be related to higher serological HBV DNA level than in genotype B.

2010 ◽  
Vol 2010 ◽  
pp. 1-6 ◽  
Author(s):  
Gaetano Scotto ◽  
Domenico Martinelli ◽  
Rocco Di Tullio ◽  
Vincenzina Fazio

Background/aims. This study aims to determine the distribution and clinical features of HBV-genotypes in a population of immigrants affected by HBV-infection. Methods. Between 01/2003 and 03/2009, 1623 immigrants were tested for HBV-infection. Biochemical and virological activities were determined in HBsAg-positive patients; HBV-genotypes were determined, by the INNO-LiPA HBV Genotyping, in the subjects with HBV DNA detectable. In every patient we evaluated the stage and classified the infection as inactive carrier, mild or moderate/severe chronic hepatitis, cirrhosis, and/or HCC. Results. Among the tested subjects, 191 (11.7%) resulted HBsAg-positive, and in 144/191 (75.4%) serum HBV-DNA was detectable. The genotype distribution was as follows: 45,13% genotype E, 18,1% genotype D, 15,3% genotype B, 13,2% genotype C, 4,9% genotype A, 3,5% mixed genotypes (A–D). The evaluation of liver disease degree showed that 24.6% patients were inactive carriers of HBV infection, 19.4% presented a immunotolerance phase, 34.5% had mild chronic hepatitis, 13.6% had a moderate/severe chronic hepatitis, 6.3% had cirrhosis, and 1.6% presented HCC. Conclusions. Our study evidences a high prevalence of HBV-infection in immigrants, and the potentiality of migratory flow in the introduction of genotype non-D hepatitis B virus. The Hepatitis B virus genotypes presented significant differences in epidemiological and clinical characteristics.


Author(s):  
Eman Mohammad Al-Shawkany ◽  
Abdul-Al-Raoof Mohammad AlShawkany ◽  
Saleh S Bahaj ◽  
Arwa Mohammed Othman ◽  
Hassan A Al-Shamahy ◽  
...  

Background and aims: Hepatitis B virus infection is a significant public health crisis global. Hepatitis B virus genotyping is an important tool in epidemiological studies to determine the category and extent of treatment and to predict the outcome of chronic infections, for instance hepatocellular carcinoma and cirrhosis. The study designed to determine the prevalence of hepatitis B virus genotypes among Yemeni patients with chronic hepatitis B (CHB) and to evaluate some of the associated risk factors. Methods: Fifty patients (38 males, 12 females) with chronic hepatitis B from Al-Thawra Modern General Hospital, Al-Kuwait University Hospital, and AL-Gomhoria Hospital were included. HBV DNA was first detected by conventional PCR then HBV genotypes were determined using nested and multiplex PCR.  Results: Mixed HBV genotypes (A+B+C+D+E), (A+B+C+D+E+F), and  (A+B+C+D)  were found to be the most prevalent (60 %), it is followed by genotype D (16 %), genotype B (16%) and genotype A (8%), whereas C, E, and F genotype were not found individually among the study population. Blood transfusion was associated with mixed infection (χ2=13.06; p= 0.005). Conclusions: In assumption, this study demonstrates the general prevalence of hepatitis B virus genotypes among HBV-infected Yemeni hepatitis B patients who request medical consideration in a hospital. In mono-genotype HBV infection, genotype B and D were the most prevalent genotypes. In HBV mixed genotype infection, the A/B/C/D/E genotype was the most prevalent in the study area. In the future, based on genotype, clinical trials and treatment regimens must be individually assumed to efficiently manage chronic HBV infection. To this end, a prospective nationwide population study of HBV genotype spreading and clinical outcomes is suggested.                    Peer Review History: Received: 15 May 2021; Revised: 11 June; Accepted: 27 June, Available online: 15 July 2021 Academic Editor:  Ahmad Najib, Universitas Muslim Indonesia, Makassar, Indonesia, [email protected] UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency.  Received file:                Reviewer's Comments: Average Peer review marks at initial stage: 6.5/10 Average Peer review marks at publication stage: 7.5/10 Reviewer(s) detail: Dr. Salfarina Ramli,  Department of Pharmacology and Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Teknologi MARA, 42300 Puncak Alam, Selangor, Malaysia. [email protected]   Dr. Asia Selman Abdullah, University of Basrah, Iraq, [email protected] Similar Articles: EXPLOSION OF HEPATITIS B AND C VIRUSES AMONG HEMODIALYSIS PATIENTS AS A RESULT OF HEMODIALYSIS CRISIS IN YEMEN PREVALENCE AND GENOTYPING OF HEPATITIS C VIRUS IN HEMODIALYSIS PATIENTS AND EVALUATION OF HCV-CORE ANTIGEN TEST IN SCREENING PATIENTS FOR DIALYSIS IN SANA'A CITY, YEMEN PREVALENCE OF HBV AND HCV; AND THEIR ASSOCIATED RISK FACTORS AMONG PUBLIC HEALTH CENTER CLEANERS AT SELECTED PUBLIC HEALTH CENTERS IN SANA'A CITY-YEMEN


2014 ◽  
Vol 3 (4) ◽  
pp. 145-151
Author(s):  
Ping Li ◽  
Xi Xiong ◽  
Xin Zhang ◽  
Zhi-guo Yang ◽  
Lei Gao ◽  
...  

Abstract Objective to investigate the association between HBV genotypes and characteristics of rtA181 mutation. Methods Total of 85 chronic hepatitis B (CHB) patients who appeared rtA181 mutation after nucleos(t)ide analogs (NAs) therapy were enrolled in this study. Levels of serum ALT, AST, HBV DNA and HBsAg titers were monitored during therapy. HBV reverse transcriptase genes were amplified and sequenced to identify genotypes and resistance mutations. Virions and HBsAg in HepG2 cell with rtA181 mutation were also compared between genotypes B and C. Results The majority of sera contained HBV genotypes B (15.7%) and C (84.3%). There were no significant difference of rtA181 mutant patterns between genotypes (P > 0.05). After emergence of rtA181 mutation, serum ALT, AST, HBV DNA levels and HBsAg titers were decreased than that at baseline (P < 0.05), while these characteristics were not different between genotypes B and C (P > 0.05). In cellular experiment, there were no significant differences between genotypes B and C not only in HBV virions but also in HBsAg titres (P > 0.05). Conclusions No differences of clinical characteristics and cellular results were found in rtA181 mutation of HBV genotypes B and C.


2011 ◽  
Vol 5 (12) ◽  
pp. 882-889 ◽  
Author(s):  
Myo Nyein Aung ◽  
Wattana Leowattana ◽  
Noppadon Tangpukdee ◽  
Chatporn Kittitrakul

Introduction: Hepatitis B virus (HBV) genotype C is prevalent in many areas of the world including Thailand and Southeast Asia. It is a strong risk for hepatocellular carcinoma (HCC) by evidence. We aimed to describe the baseline clinical information of treatment naïve genotype C infected chronic hepatitis B (CHB) patients and to describe the treatment response by surrogate outcome markers in genotype C infected CHB patients after one year of nucleos(t)ide analogues (NA) treatment Methodology:  Thirty-four genotype C CHB patients were studied at the Hospital for Tropical Diseases, Bangkok, including 12 patients treated with lamivudine, 11 with telbivudine, 8 with adefovir, and 3 with entecavir. Serum HBV DNA levels, serum alanine amino transferase ( ALT ) levels, HBeAg status, and alpha-feto protein (AFP) levels were recorded at the start and after twelve months of ongoing treatment. HBV genotyping was performed by line-probe assay. Results: About half of the patients (58.8%) were HBeAg positive. Mean HBV viral load was 6.53 + 1.15 log10 copies per ml at baseline and reduced to 3.63 + 1.3 log10 copies per ml after one year of NA treatment. Serum HBV DNA levels became undetectable in 47.1 % of the patients and serum ALT was normalized in 23.5 % of the patients. Conclusion: Most of the genotype C patients were aged above 40 years. More than half of the genotype C infected patients did not achieve virological response and biochemical remission. Among the CHB patients, genotype C infected patients are a high priority group for intervention.


2007 ◽  
Vol 42 (9) ◽  
pp. 761-768 ◽  
Author(s):  
Zhi Yong Gao ◽  
Tong Li ◽  
Jia Wang ◽  
Ji Mei Du ◽  
Ya Juan Li ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document