There has long been a popular conceptual linkage between human immunodeficiency virus (HIV) acquisition and substance abuse involving "needles". Indeed, in vitro studies demonstrate that these substances promote the replication of HIV. Included in these in vitro studies is a linkage or association of tissue damage and viral load with the actions HIV envelope protein gp120 with substances of abuse. However, detailed epidemiological studies have not supported this association of substance abuse and HIV acquisition, viral load and exacerbated tissue damage. It is with this understanding that we undertake a reevaluation of the in vitro studies within the context of the microvascular immune environment. In this regard, a counter-intuitive hypothesis emerges, namely, that specific substances of abuse may afford a degree of protection from HIV infection. This new hypothesis involves the neural, immune, and vascular signaling molecule nitric oxide.
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Sci Rep
January 2025
Department of Psychology (Scarborough), University of Toronto, Toronto, ON, Canada.
Recent research has identified sex-dependent links between risk taking behaviors, approach-avoidance bias and alcohol intake. However, preclinical studies have typically assessed alcohol drinking using a singular dimension of intake (i.e.
View Article and Find Full Text PDFNat Commun
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Department of Pharmaceutical Sciences, Thomas J. Long School of Pharmacy, University of the Pacific, Stockton, CA, US.
The opioid crisis, driven by synthetic opioids like fentanyl, demands innovative solutions. The opioid antidote naloxone has a short action ( ~ 1 hour), requiring repeated doses. To address this, we present a new and simple naloxone prodrug delivery system repurposing a hydrophilic derivative of acoramidis, a potent transthyretin ligand.
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Center for Behavioral Health Statistics and Quality, Substance Abuse and Mental Health Services Administration, Rockville, MD.
Drug Alcohol Depend
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Department of Internal Medicine, College of Medicine, Charles R. Drew University of Medicine and Science, 1731 E. 120th St, Los Angeles, CA 90059, USA. Electronic address:
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Department of Social, Behavioral, and Population Sciences, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA.
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