NIH-funded research R01 grant

How drinking changes gut bacteria and heart health in people with HIV

Official title: Alcohol assoCiated gut Dysbiosis and CVD in HIV (the AC/DC HIV study)

Funded at Brown University · NIH-11196102 · Data updated 2026-11-12

This project looks at whether alcohol-related changes in gut bacteria in people with HIV lead to more inflammation and higher heart disease risk.

More Dysbiosis research and trials

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionBrown University
NIH-funded
Lab location1 site (Providence, United States)
Project startSeptember 25, 2024
Project endMay 31, 2029
Funding year2025
Award (this year)$601,249
NIH project number5R01AA031640-02
Project IDNIH-11196102 on NIH RePORTER

Who could benefit from this research

Could help

People living with HIV—especially those who drink alcohol at hazardous or heavy levels—are the group this work focuses on.

Less likely to help

People without HIV or those who do not drink alcohol are unlikely to receive direct benefit from this project.

What this research studies

From your perspective, researchers will use stored stool and blood samples plus health records from people with HIV who have different drinking patterns. They will measure gut bacteria that make butyrate, levels of beneficial and harmful metabolites (like butyrate and TMAO), and blood markers of gut leak and inflammation. The team will link those measures to heart-related tests and later health outcomes, including signs of early heart disease and death. The work uses harmonized data from three existing HIV cohorts so no new long-term follow-up is required for participants in those groups.

Why it matters

Potential benefit: If successful, the findings could point to gut bacteria or metabolites to target for lowering heart disease risk in people with HIV who drink.

How similar studies have gone: Previous studies have linked gut bacteria changes to inflammation and heart disease, but applying this specifically to alcohol-related changes in people with HIV is relatively new.

Where this research is happening

  • Brown University
    Providence, United States
    Active

Researchers

  • Principal investigator: Monnig, Mollie a — Brown University
  • Study coordinator: Monnig, Mollie a

Related research

Other NIH-funded projects on the same topics.

  • Microbial Dysbiosis and Its Role in Pancreatic Cancer

    A doctor-researcher team at Northwestern University is studying how gut bacteria influence pancreatic cancer and its response to immunotherapy to find new ways to help patients.

    NIH research Northwestern University · Chicago, United States · NIH-11624054

  • From Symbiosis to Dysbiosis: How Resolving Inflammation Could Restore Your Mouth’s Balance

    This grant explores how turning off the harmful inflammation in periodontitis and promoting natural healing could help restore the mouth’s healthy balance.

    NIH research Ada Forsyth Institute, INC. · Somerville, UNITED STATES · NIH-11621747

  • Antibiotics, gut health, and skin reactions in kids

    A small study in children will look at whether antibiotic use and gut bacteria play a role in hives and related symptoms that children sometimes get after antibiotics.

    NIH research Cincinnati Childrens Hosp Med Ctr · Cincinnati, United States · NIH-11603169

  • Novel therapeutic to protect the gut after radiation

    A new GI-directed treatment given after radiation exposure may reduce gut damage and improve survival in people exposed to high-dose radiation.

    NIH research Columbia University Health Sciences · New York, United States · NIH-11572662

  • A new GI-focused treatment to reduce radiation damage after exposure

    A potential GI-targeted therapy given after radiation exposure may help protect the gut and improve survival in people affected by radiation injuries.

    NIH research Columbia University Health Sciences · New York, United States · NIH-11572658

  • How a mouth bacterium might fuel gum disease and heart risk

    A small study will look at how a bacterium in the mouth that makes a reactive chemical (methylglyoxal) could drive gum inflammation and changes in the mouth’s bacteria, possibly linking to heart disease.

    NIH research State University of New York at Buffalo · Amherst, United States · NIH-11564245

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.
Last reviewed 2026-11-14 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.