HEPATITIS C VIRUS GENOTYPES AND ASSOCIATION WITH VIRAL LOAD IN YAZD, CENTRAL PROVINCE OF IRAN

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HADINEDOUSHAN HOSSEIN; SALMANROGHANI HASAN; AMIRBAIGY MOHAMMAD KAZEM; AKHONDI MEYBODI MOHSEN

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Journal Paper

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Journal: Hepatitis Monthly Year:2014 | Volume:14 | Issue:3 Page(s): 1-5

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Title

HEPATITIS C VIRUS GENOTYPES AND ASSOCIATION WITH VIRAL LOAD IN YAZD, CENTRAL PROVINCE OF IRAN

Author(s)

HADINEDOUSHAN HOSSEIN | SALMANROGHANI HASAN | AMIRBAIGY MOHAMMAD KAZEM | AKHONDI MEYBODI MOHSEN | Issue Writer Certificate

Keywords

HEPATITIS C VIRUS

GENOTYPING TECHNIQUES

REAL-TIME POLYMERASE CHAIN REACTION

Abstract

Background: HEPATITIS C VIRUS (HCV) is a major cause of liver disease. Infection with HCV is a global public health problem. The virus is classified into 6 genotypes and more than 80 subtypes named as a, b, c, etc. HCV genotyping has been an important parameter for the treatment of HCV infection.Objectives: The main aim of this study was to estimate the prevalence of HCV genotypes in Yazd, central province of Iran. In addition, the study investigated whether there was any association between HCV load and genotypes.Patients and Methods: This descriptive cross-sectional study was performed on samples suspicious of HCV infection from March 2010 to June 2013. Peripheral blood sample was obtained and screened for anti-HCV antibodies using Enzyme-Linked Immunosorbent Assay (ELISA). Then sera of anti-HCV positive samples were analyzed using quantitative polymerase chain reaction method. Plasma samples were used to determine the HCV genotypes of 1a, 1b, 2, 3, and 4 in 191 infected patients.Results: One hundred fifty-two out of 191 (79.6%) samples were from male patients. The mean of the patients’ age was 40.7±11.9 years (range 21-75 years old). Sixty- three (33%) patients were included in 31-40 years group. The mean number of HCV in infected patients was 2.92×106±1.85×106 copies/mL (Min: 508, Max: 2.75×108 copies/mL). HCV genotype 3 was the predominant genotype (50.3%) followed by subtypes 1a (38.7%) and 1b (6.8%). The distribution of other HCV genotypes showed genotype 2 in 1.6% and mixed genotypes in 2.6% of positive samples. Genotype 3 was predominant in all age groups except 21-30 years of age group. We were unable to find any significant difference between mean viral load of the patients infected with genotype 3 and those infected with genotype 1 (1a and 1b).Conclusions: Findings of the present study showed that HCV genotype 3 was the predominant genotype followed by the subtypes 1a and 1b in Yazd, central province of Iran. In addition, there was no difference between HCV load and genotypes 1 and 3. HCV genotyping is recommended in other provinces of Iran.

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