ArticleJournal of cannabis research2026
THC induced similar physiological effects on HIV transgenic rats and their controls without affecting HIV-induced deficits in effortful motivation.
Article in Journal of cannabis research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Low-Dose Cannabidiol Treatment does not Alter Cognitive Performance in the HIV-1 Transgenic Rat Model of NeuroHIV.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2026Article
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4 authors.
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Abstract
backgroundCannabinoids have proven to useful for attenuating adverse effects of HIV. People living with HIV use cannabis at higher rates, with evidence suggesting it alleviates physiological symptoms such as nausea, loss of appetite, etc.. Cannabis can alter physiology as well as essential behavioral functions such as motivation. This study investigated the effect of delta-9-tetrahydrocannabinol (THC), the main psychoactive component of cannabis, on physiological responses and motivation in HIV-1 transgenic (tg) rats and their controls.
methodsIn Experiment 1, adult female and male HIV-1tg (n = 46) rats and their controls (wildtype littermates [WT] and Fischer344 [F344] rats; n = 87) were tested for acute THC-induced (0, 0.3, 3 mg/kg) physiological effects using the cannabinoid tetrad assay: 1) nociception, 2) body temperature, and 3) locomotor and exploratory behavior. In Experiment 2, adult female and male HIV-1tg (n = 58) rats and controls (n = 84) were tested in the Progressive Ratio Breakpoint Task (PRBT) to assess effortful motivation at baseline, after acute THC, then chronic (16 days) THC treatment (0, 0.3, 3 mg/kg). Data collected was analyzed using separate univariate ANOVA test with group (HIV-1tg, WT, F344), drug (0, 0.3, 3 mg/kg THC) and sex (female and male) as fixed factors. Bonferroni adjustments were used to correct for multiple comparisons.
resultsTHC (3 mg/kg) reduced nociception, temperature, and locomotor and exploratory activity across genotypes with some sex-dependent effects. Further, HIV-1tg and WT rats showed reduced motivation compared to F344 controls across PRBT testing timepoints. Acute 3 mg/kg THC reduced breakpoints but with no effects after chronic treatment.
conclusionHence, THC produces consistent physiological and motivational across HIV-1tg rats and their controls. Additionally, the HIV-1tg rat exhibited motivational deficits only when compared to the F344 but not WT controls, suggesting careful selections of control groups in future studies.
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