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Title: Association of HIV diversity and virologic outcomes in early antiretroviral treatment: HPTN 052
Authors: Philip J. Palumbo
Ethan A. Wilson
Estelle Piwowar-Manning
Marybeth McCauley
Theresa Gamble
Newton Kumwenda
Joseph Makhema
Nagalingeswaran Kumarasamy
Suwat Chariyalertsak
James G. Hakim
Mina C. Hosseinipour
Marineide G. Melo
Sheela V. Godbole
Jose H. Pilotto
Beatriz Grinsztejn
Ravindre Panchia
Ying Q. Chen
Myron S. Cohen
Susan H. Eshleman
Jessica M. Fogel
Keywords: Agricultural and Biological Sciences
Biochemistry, Genetics and Molecular Biology
Issue Date: 1-May-2017
Abstract: © 2017 Palumbo et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Higher HIV diversity has been associated with virologic outcomes in children on antiretroviral treatment (ART). We examined the association of HIV diversity with virologic outcomes in adults from the HPTN 052 trial who initiated ART at CD4 cell counts of 350-550 cells/mm3. A high resolution melting (HRM) assay was used to analyze baseline (pre-treatment) HIV diversity in six regions in the HIV genome (two in gag, one in pol, and three in env) from 95 participants who failed ART. We analyzed the association of HIV diversity in each genomic region with baseline (pre-treatment) factors and three clinical outcomes: Time to virologic suppression after ART initiation, time to ART failure, and emergence of HIV drug resistance at ART failure. After correcting for multiple comparisons, we did not find any association of baseline HIV diversity with demographic, laboratory, or clinical characteristics. For the 18 analyses performed for clinical outcomes evaluated, there was only one significant association: Higher baseline HIV diversity in one of the three HIV env regions was associated with longer time to ART failure (p = 0.008). The HRM diversity assay may be useful in future studies exploring the relationship between HIV diversity and clinical outcomes in individuals with HIV infection.
ISSN: 19326203
Appears in Collections:CMUL: Journal Articles

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