Using microbes to reduce inflammation and cognitive decline in older adults after surgery

Targeting age-related neuroinflammation and postoperative cognitive decline: a microbial-based approach

['FUNDING_R01'] · UNIVERSITY OF TEXAS AT AUSTIN · NIH-10795907

This study is looking at how a friendly soil bacterium called Mycobacterium vaccae might help older adults feel sharper and think better after surgery by reducing inflammation in the brain, and if you join, you could help us learn more about how this could improve brain health as we age.

Quick facts

Phase['FUNDING_R01']
Study typeNih_funding
SexAll
SponsorUNIVERSITY OF TEXAS AT AUSTIN (nih funded)
Locations1 site (AUSTIN, UNITED STATES)
Trial IDNIH-10795907 on ClinicalTrials.gov

What this research studies

This research investigates how a specific soil bacterium, Mycobacterium vaccae, can help reduce neuroinflammation and prevent cognitive decline in older adults following surgery. The study aims to understand the relationship between age-related immune changes and cognitive health, particularly focusing on postoperative cognitive decline (POCD), which affects many elderly patients. By administering three subcutaneous injections of M. vaccae, the researchers hope to improve the immune response and protect against cognitive issues that can arise after surgical procedures. Patients participating in this research may contribute to a better understanding of how microbial therapies can enhance brain health in aging populations.

Who could benefit from this research

Good fit: Ideal candidates for this research are older adults, particularly those undergoing surgical procedures who are at risk for postoperative cognitive decline.

Not a fit: Patients who are younger than 21 years old or those not undergoing surgery may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to new treatments that significantly reduce the risk of cognitive decline in older adults after surgery.

How similar studies have performed: While the use of microbial therapies is a relatively novel approach, there is emerging evidence suggesting that similar strategies may have beneficial effects on immune regulation and cognitive health.

Where this research is happening

AUSTIN, 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.

View on NIH RePORTER →

Last reviewed 2026-05-15 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.