Journal
CLINICAL IMMUNOLOGY
Volume 136, Issue 1, Pages 42-50Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.clim.2010.02.010
Keywords
Immune reconstitution inflammatory syndrome; Immune restoration disease; Antiretroviral therapy; Unmasking IRIS; Paradoxical IRIS; Biomarker; D-dimer; C-reactive protein
Categories
Funding
- National Institute of Allergy and Infectious Diseases
- Clinical Center of the National Institutes of Health in Bethesda, Maryland
- National Cancer Institute, National Institutes of Health [HHSN261200800001E]
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Biomarkers could be useful in evaluating immune reconstitution inflammatory syndrome (IRIS). A cohort of 45 HIV-1-infected, antiretroviral treatment (ART)-naive patients with baseline CD4 T cell counts <= 100 cells/mu L who were started on ART, suppressed HIV-RNA to <50 copies/mL, and seen every 1-3 months for 1 year were retrospectively evaluated for suspected or confirmed IRIS. D-Dimer, C-reactive protein (CRP), and selected autoantibodies were analyzed at baseline, 1 and 3 months post-ART in cryopreserved plasma. Median differences between cases and controls were compared with Mann Whitney and Fishers exact tests. Sixteen patients (35.6%) developed IRIS (median of 35 days post-ART initiation): unmasking = 8, paradoxical = 7, autoimmune=1. Pre-ART D-dimer and CRP were higher in IRIS cases versus controls (D-dimer: 0.89 mg/L versus 0.66 mg/L, p=0.037; CRP: 0.74 mg/L versus 0.39 mg/L, p=0.022), while D-dimer was higher in unmasking cases at IRIS onset (2.04 mg/L versus 0.36 mg/L, p=0.05). These biomarkers may be useful in identifying patients at risk for IRIS. Published by Elsevier Inc.
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