Using probiotics to improve gut health and reduce cognitive decline in Alzheimer's disease

Microbial therapy improves gut permeability to reduce cognitive decline and Alzheimer’s disease

NIH-funded research University of South Florida · NIH-10892340

This study is looking at how a special heat-killed probiotic called Lactobacillus paracasei D3-5 might improve gut health and help protect against memory problems as we age, especially for those concerned about Alzheimer's disease.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of South Florida NIH-funded
Lab location1 site (Tampa, United States)
Project IDNIH-10892340 on NIH RePORTER

What this research studies

This research investigates how a specific heat-killed probiotic, Lactobacillus paracasei D3-5, can enhance gut health by restoring mucin production, which may help reduce gut permeability. The study aims to understand the connection between gut health and cognitive decline associated with aging and Alzheimer's disease. By examining the effects of this probiotic on inflammation and cognitive function in older adults, the research seeks to provide insights into potential therapeutic approaches for Alzheimer's disease. Patients may be monitored for changes in cognitive abilities and gut health throughout the study.

Who could benefit from this research

Good fit: Ideal candidates for this research are older adults experiencing cognitive decline or those diagnosed with Alzheimer's disease.

Not a fit: Patients with non-age-related cognitive impairments or those not experiencing any cognitive decline may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to new probiotic treatments that improve gut health and slow cognitive decline in Alzheimer's patients.

How similar studies have performed: Previous research has shown promising results using probiotics to improve gut health and cognitive function, suggesting potential success for this approach.

Where this research is happening

Tampa, 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 disease 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.