Understanding the Gut-Brain Connection in Lewy Body Conditions

Microbiome-gut-brain dysfunction in prodromal and symptomatic Lewy body diseases

NIH-funded research Lovelace Biomedical Research Institute · NIH-11159594

This project explores how changes in gut bacteria might be connected to brain changes in people with early or active Lewy body conditions like Parkinson's Disease Dementia and Dementia with Lewy Bodies.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionLovelace Biomedical Research Institute NIH-funded
Lab location1 site (Albuquerque, United States)
Project IDNIH-11159594 on NIH RePORTER

What this research studies

Lewy body conditions, including Parkinson's Disease Dementia and Dementia with Lewy Bodies, cause significant memory and thinking problems that are hard to treat. We believe that an imbalance in gut bacteria, specifically an increase in certain types, along with a leaky gut, might play a key role in these conditions. This project aims to see if these gut changes are present early on and if they are linked to brain degeneration and symptoms. We are particularly interested in people with REM Sleep Behavior Disorder, as this often signals the start of a Lewy body condition. By understanding these connections, we hope to uncover new ways to help people affected by these conditions.

Who could benefit from this research

Good fit: Ideal candidates for related future studies might include individuals with idiopathic REM Sleep Behavior Disorder or those in the early stages of Parkinson's Disease Dementia or Dementia with Lewy Bodies.

Not a fit: Patients whose conditions are not related to Lewy body diseases or gut microbiome imbalances may not directly benefit from this specific line of research.

Why it matters

Potential benefit: If successful, this work could reveal new targets for treatments that address the gut-brain connection in Lewy body conditions, potentially slowing progression or improving symptoms.

How similar studies have performed: While the specific link between gut bacteria and early Lewy body conditions is a novel area of focus for this project, increasing evidence suggests a perturbed gut microbiome may drive disease pathogenesis in these conditions.

Where this research is happening

Albuquerque, 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 Alzheimer's disease and related dementiaAlzheimer's disease and related disordersAlzheimer's disease or a related dementiaAlzheimer's disease or a related disorderAlzheimer's disease or related dementia
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.