Little evidence that cannabis harms cognition in people with HIV
A systematic scoping review found little evidence to support a harmful impact of cannabis on cognition in people with HIV, with effects appearing function-dependent and potentially beneficial through anti-inflammatory mechanisms.
Quick Facts
What This Study Found
The review found little evidence supporting harmful effects of cannabis on cognition in people with HIV. Where effects were observed, they were function-dependent (varying by cognitive domain) and confounded by age, frequency of use, and other factors. Anti-inflammatory mechanisms were proposed as a potential beneficial pathway.
Key Numbers
Limited eligible preclinical data existed. Effects varied by cognitive function domain studied.
How They Did This
Systematic scoping review of clinical and preclinical studies evaluating effects of cannabinoid exposure on cognition in HIV. Included discussion of potential mechanisms and screening considerations.
Why This Research Matters
People with HIV have high rates of both cannabis use and neurocognitive impairment. If cannabis is not worsening cognition (and may have anti-inflammatory benefits), this changes the risk-benefit calculation for HIV patients who use cannabis.
The Bigger Picture
HIV-associated neuroinflammation is a major driver of cognitive impairment in people living with HIV. Cannabis's anti-inflammatory properties could theoretically reduce this neuroinflammation, creating a scenario where the net cognitive effect differs from the general population.
What This Study Doesn't Tell Us
Few preclinical studies available. Clinical studies confounded by multiple factors. "Function-dependent" effects make broad conclusions difficult. Cannot determine whether cannabis is truly neutral or whether positive and negative effects cancel out.
Questions This Raises
- ?Could specific cannabinoid formulations improve cognition in people with HIV?
- ?Should cognitive screening protocols differ for HIV patients who use cannabis?
Trust & Context
- Key Stat:
- Little evidence of cognitive harm in HIV
- Evidence Grade:
- Systematic scoping review with limited available evidence, providing a useful overview but not definitive conclusions.
- Study Age:
- 2024 systematic scoping review of clinical and preclinical evidence
- Original Title:
- The Impact of Cannabis Use on Cognition in People with HIV: Evidence of Function-Dependent Effects and Mechanisms from Clinical and Preclinical Studies.
- Published In:
- Current HIV/AIDS reports, 21(3), 87-115 (2024)
- Authors:
- Ayoub, Samantha M(4), Holloway, Breanna M(3), Miranda, Alannah H, Roberts, Benjamin Z, Young, Jared W, Minassian, Arpi, Ellis, Ronald J
- Database ID:
- RTHC-05101
Evidence Hierarchy
Frequently Asked Questions
Is cannabis safe for cognition in people with HIV?
This review found little evidence of harm and some evidence of function-dependent effects. The anti-inflammatory properties of cannabis may be particularly relevant for HIV-related neuroinflammation, but more research is needed.
Why might cannabis affect cognition differently in people with HIV?
HIV causes chronic neuroinflammation that damages cognition. Cannabis has anti-inflammatory properties that might counteract this, potentially creating different net effects than in people without HIV.
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Cite This Study
https://rethinkthc.com/research/RTHC-05101APA
Ayoub, Samantha M; Holloway, Breanna M; Miranda, Alannah H; Roberts, Benjamin Z; Young, Jared W; Minassian, Arpi; Ellis, Ronald J. (2024). The Impact of Cannabis Use on Cognition in People with HIV: Evidence of Function-Dependent Effects and Mechanisms from Clinical and Preclinical Studies.. Current HIV/AIDS reports, 21(3), 87-115. https://doi.org/10.1007/s11904-024-00698-w
MLA
Ayoub, Samantha M, et al. "The Impact of Cannabis Use on Cognition in People with HIV: Evidence of Function-Dependent Effects and Mechanisms from Clinical and Preclinical Studies.." Current HIV/AIDS reports, 2024. https://doi.org/10.1007/s11904-024-00698-w
RethinkTHC
RethinkTHC Research Database. "The Impact of Cannabis Use on Cognition in People with HIV: ..." RTHC-05101. Retrieved from https://rethinkthc.com/research/ayoub-2024-the-impact-of-cannabis
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.