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. 2014 Dec 9;14(12):e25105.
doi: 10.5812/hepatmon.25105. eCollection 2014 Dec.

Distribution of hepatitis B virus genotypes in azerbaijani patients with chronic hepatitis B infection

Farah Bokharaei-Salim  1 , Hossein Keyvani  1 , Seyed Hamidreza Monavari  1 , Maryam Esghaei  1 , Shahin Fakhim  2 , Angila Ataei Pirkooh  1 , Bita Behnava  3
Affiliations

Distribution of hepatitis B virus genotypes in azerbaijani patients with chronic hepatitis B infection

Farah Bokharaei-Salim et al. Hepat Mon. .

Abstract

Background: Hepatitis B virus (HBV) has been classified into ten genotypes (A-J) based on genome sequence divergence, which is very important for etiological and clinical investigations. HBV genotypes have distinct geographical distributions worldwide.

Objectives: The aim of this study was to investigate the distribution of HBV genotypes among Azerbaijani patients with chronic hepatitis B, came from the Republic of Azerbaijan country to Iran to receive medical care.

Patients and methods: One hundred and three patients with chronic HBV infection, referred to hospitals related to Iran University of Medical Sciences and Tehran Hepatitis Center from August 2011 to July 2014, were enrolled in this cross sectional study. About 3-milliliter of peripheral blood was taken from each patient. After viral DNA extraction, HBV genotypes were tested using the INNO-LiPA™ HBV kit (Innogenetics, Ghent, Belgium). HBV genotyping was confirmed using sequencing of hepatitis B surface antigen (HBsAg) and polymerase (pol) regions of HBV.

Results: The mean age of patients was 35.9 ± 11.7 years (19-66). Of 103 patients, 72 (69.9%) were male. In the present study, the predominant HBV genotype was D (93.2%) followed by genotype A (5.8%) and concurrent infection with A and D genotypes (0.97%).

Conclusions: The main and frequent HBV genotype among Azerbaijani patients with chronic hepatitis B virus infection was genotype D followed by genotype A.

Keywords: Genotype; Hepatitis B virus; Patients.

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