MOLECULAR-BIOLOGICAL MARKERS OF HEPATITIS В IN PATIENTS WITH LIVER FIBROSIS/CIRRHOSIS IN UZBEKISTAN

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Abstract

Aim. Evaluate prevalence of genetic variants of hepatitis В viruses in population of various regions of Uzbekistan with hepatitis of various genesis and different severity levels of liver fibrosis and cirrhosis. Materials and methods. Blood plasma and liver biopsy from 39 patients with different severity levels of liver fibrosis and cirrhosis served as study material. Genotyping based on direct sequencing of Pre-Sl/Pre-S2/S HBV DNA region was applied. Results. Hepatitis В virus was detected in 32 samples ofthe 39 provided, frequency of occurrence - 82%, respectively. Phylogenetic analysis has shown, that only genotype D was detected among the examined patients, hepatitis В virus subtype D1 predominated (84.38%) compared with D2 (3.12%) and D3 (12.5%) subtypes. Conclusion. Large-scale sequencing of HBV in Central Asia will allow to evaluate routes of transmission and time of evolutionary separation of virus isolates. Understanding the epidemiology of the infectious process is important for development of programs for prophylaxis and therapy of the infection.

About the authors

Yu. V. Ostankova

Pasteur Research Institute of Epidemiology and Microbiology

Author for correspondence.
Russian Federation

A. V. Semenov

Pasteur Research Institute of Epidemiology and Microbiology; Pavlov State Medical University; Mechnikov North-Western State Medical University

Russian Federation

Kh. N. Faizullaev

Research Institute of Virology

Russian Federation

E. I. Kazakova

Research Institute of Virology

Russian Federation

A. V. Kozlov

Mechnikov North-Western State Medical University

Russian Federation

E. I. Musabaev

Research Institute of Virology

Russian Federation

A. A. Totolyan

Pasteur Research Institute of Epidemiology and Microbiology; Pavlov State Medical University

Russian Federation

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Copyright (c) 2016 Ostankova Y.V., Semenov A.V., Faizullaev K.N., Kazakova E.I., Kozlov A.V., Musabaev E.I., Totolyan A.A.

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