Volume 19, Issue 6 (Jan-Feb 2012)                   JSSU 2012, 19(6): 784-790 | Back to browse issues page

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Molaabedin M, Pedarzadeh M. Study of Various HCV Genotypes in Patients Managing by Referral Clinic in Yazd Province. JSSU. 2012; 19 (6) :784-790
URL: http://jssu.ssu.ac.ir/article-1-1831-en.html
Abstract:   (15722 Views)
Introduction: Determining virus genotype is a major factor for initiation of treatment because various kinds of genotypes need different antiviral drugs. Distribution of hepatitis C genotype in the word is variable in each country or even in each province. So we need to determine distribution pattern of hepatitis C genotype in our region. This study was performed in referral clinic of Yazd province. Methods: This was a descriptive study conducted between 2007 and 2010 on patients who were observed by Yazd referral clinic (the clinic for evaluating and management of patients with high risk behaviors). Ninety two patients who had positive RIBA test for hepatitis C infection were randomly selected and entered the study. Genotyping was performed using RT-PCR method. The primer was "universal primer HCV". Prevalence of various genotypes was analyzed according to gender, addiction and co- existence of HCV-HIV infection. Personal information and laboratory results were analyzed using SPSS. Results: The most common genotype in our study was genotype 3a (65% of cases), followed by 1a (35%). Globally 83% of patients were IV drug addict. Genotype distribution in these patients was similar to others. Fifteen patients had co-infection of HCV-HIV, and 47% of them were contaminated by genotype 1a and 53% with 3a. We could not find any patient contaminated with genotypes 2 or 4. No other genotypes except 1 & 3 or mixed genotype infection could be determined in our patients. Twenty three percent of patients had negative PCR despite positive RIBA test. This indicates that self improvement from acute hepatitis C infection in IV drug addict patients is similar to other people. Conclusion: According to the results of our study, about 2/3 of patients were infected by genotype 3a. This kind of chronic hepatitis C shows a better response to treatment comparing genotype 1a (or 1b) with shorter duration and lower cost drugs. But despite higher incidence of genotype 3a, we can not start chronic hepatitis C therapy without knowing virus genotype. Determination of genotype is mandatory for the initiation of specific antiviral treatment.
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Type of Study: Original article | Subject: General
Received: 2012/02/21 | Published: 2012/03/15

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