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The double epidemic of substance abuse and HIV infection is a multifaceted problem To investigate mechanistic clues to the effects of substance abuse on infected individuals we preformed quantitative proteomic profiling of plasma in a methamphetamine treated nonhuman primate model for AIDS. A nontargeted quantitative approach identified extracellular superoxide dismutase to be significantly upregulated by SIV and methamphetamine treatment, and targeted studies revealed an increase in expression in the antioxidant glutathione S-transferase, thus pointing to a compensatory response to increased oxidative stress in methamphetamine-treated animals.

aids research and human retroviruses

Short Communication: Quantitative Proteomic Plasma Profiling Reveals Activation of Host Defense to Oxidative Stress in Chronic SIV and Methamphetamine Comorbidity