Oral Bacteria, Cannabis Use, and Thinking Skills in People with HIV

Investigating the effect of oral microbiome on cognition in HIV-infected chronic cannabis users

NIH-funded research Univ of North Carolina Chapel Hill · NIH-11144391

This research explores how bacteria in the mouth, combined with cannabis use, might affect thinking and memory in people living with HIV.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniv of North Carolina Chapel Hill NIH-funded
Lab location1 site (Chapel Hill, United States)
Project IDNIH-11144391 on NIH RePORTER

What this research studies

Many people with HIV use cannabis, and its impact on their thinking abilities and immune system is not fully understood, with reports varying widely. This project looks at specific bacteria in the mouth, like *Actinomyces species*, which are more common in chronic cannabis users and people with HIV. Researchers want to understand if these oral bacteria play a significant role in how HIV affects the brain and its thinking processes. They will study people with HIV who use cannabis and also use laboratory models to learn more about this connection.

Who could benefit from this research

Good fit: Ideal candidates would be individuals living with HIV who are chronic cannabis users.

Not a fit: Patients who do not have HIV or do not use cannabis would likely not directly benefit from this specific research.

Why it matters

Potential benefit: Understanding this connection could lead to new ways to protect or improve thinking skills for people with HIV who use cannabis.

How similar studies have performed: While the specific link between oral bacteria, cannabis, and cognition in HIV is a novel area, previous work has identified specific oral bacteria enriched in cannabis users and HIV-infected individuals.

Where this research is happening

Chapel Hill, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Conditions Acquired Immune Deficiency Syndrome VirusAcquired Immunodeficiency Syndrome Virus
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.