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HIV gp120 sequence variability associated with HAND in Hispanic Women. | LitMetric

AI Article Synopsis

Article Abstract

Objective: HIV-1 variants with different tropisms are associated with various neuropathologies. This study intends to determine if this correlation is determined by unique viral sequences. We hypothesize that HIV-1 envelope gene sequence changes are associated with cognition status.

Methods: Viral RNA was extracted from peripheral blood mononuclear cells (PBMCs) co-cultures derived from HIV-1 infected Hispanic women that had been characterized for HIV associated neurocognitive disorders (HAND).

Results: Analyses of the C2V4 region of HIV gp120 demonstrated that increased sequence diversity correlates with cognition status as sequences derived from subjects with normal cognition exhibited less diversity than sequences derived from subjects with cognitive impairment. In addition, differences in V3 and V4 loop charges were also noted as well as differences in the N-glycosylation of the V4 region.

Conclusions: Our data suggest that the genetic signature within the C2V4 region may contribute to the pathogenesis of HAND. HIV sequence characteristics for the isolates grouped in milder forms of HAND can provide insightful information of prognostic value to assess neurocognitive status in HIV subjects, particularly during the era of highly prevalent milder forms of HAND.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4922650PMC
http://dx.doi.org/10.4172/2324-8955.1000143DOI Listing

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