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EUROPEAN JOURNAL OF CLINICAL MICROBIOLOGY & INFECTIOUS DISEASES
Volume 27, Issue 1, Pages 65-73Publisher
SPRINGER
DOI: 10.1007/s10096-007-0384-3
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The effect of coinfection with hepatitis C virus (HCV) on immune restoration in 39 human immunodeficiency virus (HIV)-infected patients during treatment with combined antiretroviral therapy (cART) was prospectively evaluated. After 48 weeks of treatment, HCV-coinfected patients had lower increases in CD4% (P = .05), total CD4+ (P = .01), and naive CD4+ (P = .06) T cells than did single-infected subjects. Higher baseline naive CD4+ T-cell levels were associated with better CD4+ (P = .05) and naive CD4+ (P < .001) T-cell recovery. After a 4-year follow up, the differences disappeared (median CD4+ increase: 291 and 306 cells for HCV-positive and HCV-negative patients, respectively, P = .9). No significant differences were seen in memory CD4+ T cells (P = .30), and CD8+ cells expressing CD38 (P = .10) and CD28 (P = .73). These results suggest that, independently of other factors, infection with HCV blunts early CD4+ T-cell recovery in HIV-infected patients treated with combined antiretroviral therapy (cART). However, as good control of viral replication is maintained, satisfactory long-term immune restoration can nonetheless be achieved.
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