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Among the many variables affecting transmission and pathogenesis of the human immunodeficiency virus type 1(HIV-1), the effects of HIV subtypes, or clades, on disease progression remain unclear. Although debated, some studies have found that the variable env and pol sequences of different subtypes of HIV-1 may endow some subtypes with greater degrees of cell tropism, virulence, and drug resistance,...
Neurologic decline associated with penetration of human immunodeficiency virus type 1 (HIV-1) into the central nervous system is thought to be due, in large part, to inflammation and local secretion of neurotoxic substances. To examine the cellular processes that mediate neurotoxicity in vivo, the authors evaluated the ability of neurons to maintain intracellular calcium homeostasis in the presence...
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