NIH-funded research R21 grant

Restoring bile acid metabolism to improve gut health after antibiotic use

Official title: Alleviating antibiotic-induced gut dysbiosis by restoring small intestinal bile acid metabolism

Funded at Brown University · NIH-11055772 · Data updated 2026-11-12

This study is looking at how antibiotics can throw off the balance of good bacteria in your gut by affecting bile acids, and it hopes to find ways to help restore that balance and improve gut health for people who have had gastrointestinal issues from antibiotics.

More Dysbiosis research and trials

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionBrown University
NIH-funded
Lab location1 site (Providence, United States)
Project startNovember 8, 2024
Project endOctober 31, 2026
Funding year2025
Award (this year)$232,073
NIH project number1R21AI183146-01A1
Project IDNIH-11055772 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research include individuals who have recently taken antibiotics and are experiencing gastrointestinal symptoms.

Less likely to help

Patients who have not taken antibiotics or do not have gastrointestinal issues may not benefit from this research.

What this research studies

This research investigates how antibiotics disrupt bile acid metabolism in the small intestine, leading to imbalances in gut bacteria. By understanding these changes, the study aims to develop methods to restore healthy bile acid levels and improve gut microbiome stability. Patients may benefit from interventions that target these metabolic pathways, potentially alleviating gastrointestinal issues caused by antibiotic treatments. The research employs a combination of microbiological and biochemical techniques to explore these interactions.

Why it matters

Potential benefit: If successful, this research could lead to new therapies that restore gut health and reduce complications associated with antibiotic use.

How similar studies have gone: Other research has shown promising results in restoring gut health through microbiome modulation, suggesting that this approach may be effective.

Where this research is happening

  • Brown University
    Providence, United States
    Active

Researchers

  • Principal investigator: Belenky, Peter — Brown University
  • Study coordinator: Belenky, Peter

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.