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Wada, Nikolas Itaru; Jacobson, Lisa P; Margolick, Joseph B; Breen, Elizabeth Crabb; Macatangay, Bernard; Penugonda, Sudhir; Martínez-Maza, Otoniel; Bream, Jay H
AIDS (London), 2015-February-20, 2015-Feb-20, 2015-02-20, 20150220, Letnik: 29, Številka: 4Journal Article
OBJECTIVES:To investigate the impact of HAART-induced HIV suppression on levels of 24 serological biomarkers of inflammation and immune activation. DESIGN:A prospective cohort study. METHODS:Biomarkers were measured with multiplex assays in centralized laboratories using stored serum samples contributed by 1697 men during 8903 person-visits in the Multicenter AIDS Cohort Study (MACS) from 1984 to 2009. Using generalized gamma models, we compared biomarker values across three groups, adjusting for possible confoundersHIV-uninfected (NEG); HIV-positive, HAART-naive (NAI); and HAART-exposed with HIV RNA suppressed to less than 50 copies/ml plasma (SUP). We also estimated changes in biomarker levels associated with duration of HIV suppression, using splined generalized gamma regression with a knot at 1 year. RESULTS:Most biomarkers were relatively normalized in the SUP group relative to the NAI group; however, 12 biomarkers in the SUP group were distinct (P < 0.002) from NEG valuesCXCL10, C-reactive protein (CRP), sCD14, sTNFR2, tumour necrosis factor-alpha (TNF-α), sCD27, sGP130, interleukin (IL)-8, CCL13, BAFF, GM-CSF and IL-12p70. Thirteen biomarkers exhibited significant changes in the first year after viral suppression, but none changed significantly after that time. CONCLUSION:Biomarkers of inflammation and immune activation moved towards HIV-negative levels within the first year after HAART-induced HIV suppression. Although several markers of T-cell activation returned to levels present in HIV-negative men, residual immune activation, particularly monocyte/macrophage activation, was present. This residual immune activation may represent a therapeutic target to improve the prognosis of HIV-infected individuals receiving HAART.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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