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OBJECTIVE: The aim of the study was to investigate the impact of treatment-related clearance of hepatitis C virus (HCV) on cognitive function. METHODS: A prospective study was conducted in 19 HCV-monoinfected and 15 HIV/HCV-coinfected individuals undergoing pegylated interferon alpha-2a and ribavirin therapy between April 2003 and August 2005. Neuropsychological, mood, and health-related quality of life (HRQOL) effects were assessed using computer-based battery, Trail Making Tests, Depression Anxiety Stress Scales and the Short Form-36 health survey. RESULTS: Pretreatment cognitive function, mood status, and HRQOL were similar between the HCV patient groups. Sustained virological response (SVR) rates were similar between HCV-monoinfected (68%) and HIV/HCV-coinfected (73%) groups. SVR was associated with significant improvements in some measures of cognitive function, independent of HRQOL improvement. CONCLUSIONS: Our findings provide evidence to support cognitive effects of HCV independent of mood status and HRQOL profiles.
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Thein et al. (2007) studied this question.
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