Investigating gut microbiome effects on brain function in Lewy body diseases

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

NIH-funded research Lovelace Biomedical Research Institute · NIH-10895428

This study is looking at how changes in gut bacteria might affect memory and thinking in people with Lewy body dementias, like Parkinson’s Disease Dementia, and is especially focused on those with sleep issues, to find early signs of the disease and understand how it progresses.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionLovelace Biomedical Research Institute NIH-funded
Lab location1 site (Albuquerque, United States)
Project IDNIH-10895428 on NIH RePORTER

What this research studies

This research explores the relationship between gut microbiome changes and cognitive decline in Lewy body dementias, such as Parkinson’s Disease Dementia and Dementia with Lewy Bodies. It aims to understand how disruptions in gut bacteria and increased intestinal permeability may contribute to the progression of these diseases. By studying patients with idiopathic REM Sleep Behavior Disorder, the research seeks to identify early indicators of disease and their association with brain degeneration and clinical outcomes. The approach involves a prospective, cross-sectional study to gather data on these mechanisms.

Who could benefit from this research

Good fit: Ideal candidates include individuals diagnosed with idiopathic REM Sleep Behavior Disorder or those at risk for Lewy body dementias.

Not a fit: Patients with other forms of dementia unrelated to Lewy body diseases may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to new treatment strategies targeting gut health to improve cognitive function in patients with Lewy body diseases.

How similar studies have performed: While the specific approach of linking gut microbiome changes to Lewy body diseases is relatively novel, there is growing evidence supporting the role of gut health in neurodegenerative 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.