Immune restoration disease after the treatment of imrrmnodeficient THIV-infected patients with highly active antiretroviral therapy

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Abstract

Background To determine if infectious disease events in HIV-infected patients treated with highly active antiretroviral therapy (HAART) are a consequence of the restoration of pathogen-specific immune responses, a single-centre retrospective study of all HIV-infected patients commencing HAART prior to 1 July 1997 was undertaken to determine the incidence, characteristics and time of onset of disease episodes in HAART responders (decrease in plasma HIV RNA of > 1 log10 copies/ml). Methods Baseline and post-therapy changes in CD4 T-cell counts and HIV RNA were compared in patients with and without disease and delayed-type hypersensitivity responses to mycobacterial antigens were measured in selected patients. Results Thirty-three of 132 HAART responders (25%) exhibited one or more disease episodes after HAART, related to a pre-existent or subclinical infection by an opportunistic pathogen. Disease episodes were most often related to infections by mycobacteria or herpesviruses but hepatitis C virus (HCV), molluscum contagiosum virus and human papilloma virus were also implicated. They were most common in patients with a baseline CD4 T-cell count of < 50/uL and occurred most often during the first 2 months of therapy and when CD4 T-cell counts were increasing. Mycobacteria- and HCV-related diseases were associated with restoration of pathogen-specific immune responses. Conclusions We conclude that improved immune function in immunodeficient patients treated with HAART may restore pathogen-specific immune responses and cause inflammation in tissues infected by those pathogens. © 2000 British HIV Association.

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French, M. A., Lenzo, N., John, M., Mallal, S. A., McKinnon, E. J., James, I. R., … Tay-Kearney, M. L. (2000). Immune restoration disease after the treatment of imrrmnodeficient THIV-infected patients with highly active antiretroviral therapy. HIV Medicine, 1(2), 107–115. https://doi.org/10.1046/j.1468-1293.2000.00012.x

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