Genotypes of hepatitis C virus in the Indian sub-continent: A decade-long experience from a tertiary care hospital in South India.
Indian J Med Microbiol
;
2013 Oct-Dec; 31(4): 349-353
Article
in English
| IMSEAR
| ID: sea-156814
ABSTRACT
Background:
Hepatitis C virus (HCV) is a leading cause of chronic liver disease (CLD) that can progress to cirrhosis and hepatocellular carcinoma. Genotypes of HCV can vary in pathogenicity and can impact on treatment outcome.Objectives:
To study the different genotypes among patients with HCV related CLD attending a tertiary care hospital in south India during 2002-2012. StudyDesign:
Study subjects were those referred to clinical virology from the liver clinic. Genotyping was performed using the genotype specifi c core primers in nested polymerase chain reaction (PCR), 5′ non-coding regions based PCR- restriction fragment length polymorphism and NS5B sequencing methods. With the latter method, obtained sequences were compared with published GenBank sequences to determine the genotype.Results:
Of the 451 samples tested, HCV genotype 3 was found to be the most predominant (63.85%). Other genotypes detected were genotype 1 (25.72%), genotype 2 (0.002%), genotype 4 (7.5%) and genotype 6 (2.7%). Genotype 3 was the common genotype in patients from Eastern India while genotype 1 and 4 were mainly seen in South Indian patients. Genotype 6 was seen exclusively in patients from North-Eastern India. Two other patients were infected with recombinants of genotype 1 and 2.Conclusions:
In this study spanning a decade, HCV genotype 3 and genotype 1 were found to be the predominant genotypes in the Indian sub-continent. Genotype 4 and genotype 6 appeared to show some geographic restriction. A continued monitoring of HCV genotypes is essential for the optimum management of these chronically infected patients. In addition, knowledge of circulating genotypes could impact on future vaccine formulations.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Language:
English
Journal:
Indian J Med Microbiol
Journal subject:
Microbiology
Year:
2013
Type:
Article
Similar
MEDLINE
...
LILACS
LIS