Abstract
BACKGROUND: Human immunodeficiency virus (HIV)/hepatitis C virus (HCV) coinfection has become a serious public health problem. The influence of HIV/HCV coinfection on plasma HCV RNA loads and clinical criteria which are usually regarded as a predictor of the progress of liver disease have not been reliably evaluated. OBJECTIVES: This study investigated the impact of HIV infection on HCV RNA load and clinical indexes in Yazd and Tehran. MATERIALS AND METHODS: HCV/HIV-coinfected patients and HCV-monoinfected controls were examined and compared for plasma HCV RNA and related risk factors such as HCV genotypes, liver enzymes, and transmission routes. RESULTS: A total of 54 HCV/HIV-coinfected patients and 88 HCV-monoinfected controls were studied. The HCV RNA load mean was significantly higher in HCV/HIV-coinfected patients than in HCV-monoinfected patients (p < 0.001). HCV RNA load mean in patients infected with HCV without anti-HCV therapy was lower than HIV/HCV patients with and without highly active antiretroviral therapy that this difference was significant (p < 0.001). The HCV RNA levels were significantly higher in HIV/HCV genotype 3a coinfected patients than in genotype 3a monoinfected patients (p < 0.001). HIV RNA levels were lower in genotype 1a infected patients than in genotype 3a infected patients, but this difference was not significant statistically. The ALT mean levels were significantly higher in genotype 3a HIV/HCV-coinfected patients than in genotype 3a HCV-monoinfected patients (p < 0.001). CONCLUSIONS: HIV/HCV coinfection leads to a significant increase in plasma HCV RNA. Further evaluations of the effects of ART and HIV infection on the course of HCV infection and the response to treatment against HCV infection in other and different genotypes are also needed. Moreover, HIV-infected patients should be screened regularly for HCV coinfection, particularly if they are in high-risk groups such as IDUs and recipients of blood transfusions.