How gut bacteria change body chemicals in health and disease

Human microbiome metabolites in health and disease

NIH-funded research Harvard Medical School · NIH-11376340

This project is finding out how gut bacteria alter the body's natural chemicals and how those changes might affect people with conditions like adult-onset diabetes or mood disorders.

Quick facts

Grant typeNIH-funded research
Study typeNIH-funded research
Funding institutionHarvard Medical School NIH-funded
Lab location1 site (Boston, United States)
Project IDNIH-11376340 on NIH RePORTER

What this research studies

Researchers are tracing the small molecules that form when gut bacteria transform host-produced compounds such as bile acids, steroids, and vitamins. They will use chemical analysis, bacterial genetics, and lab models to map the pathways that make these metabolites. The team will test how those bacterial products influence host cells and physiology, and will work with human-derived samples when available. The goal is to link specific bacterial chemical changes to effects on health and disease.

Who could benefit from this research

Good fit: People with adult-onset diabetes, mood or affective disorders, or healthy volunteers willing to provide stool or blood samples would be the most relevant participants.

Not a fit: Patients with conditions unrelated to gut microbiome chemistry or those unable to give biological samples are unlikely to benefit directly from this work.

Why it matters

Potential benefit: If successful, this work could identify new markers or targets for treatments that modify bacterial metabolism to help conditions like diabetes or affective disorders.

How similar studies have performed: Prior work has identified microbiome-modified bile acids and other metabolites that affect host biology in lab models, so this builds on promising but still early findings.

Where this research is happening

Boston, 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 Adult-Onset Diabetes MellitusAffective Disorders
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.