Tiny particles from gut bacteria and their role in high blood pressure
Official title: Bacterial extracellular vesicles in microbiota-brain communication and hypertension
Funded at Baylor College of Medicine · NIH-11251927 · Data updated 2026-11-12
The team is testing whether tiny packages released by gut bacteria cause inflammation that leads to high blood pressure, which could help people with hypertension.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Baylor College of Medicine NIH-funded |
| Lab location | 1 site (Houston, United States) |
| Project start | January 1, 2025 |
| Project end | November 30, 2028 |
| Funding year | 2026 |
| Award (this year) | $494,821 |
| NIH project number | 5R01HL176554-02 |
| Project ID | NIH-11251927 on NIH RePORTER |
Who could benefit from this research
✓Could help
Adults with high blood pressure, especially those with hard-to-control or long-standing hypertension, would be most relevant for future related trials.
✕Less likely to help
People without high blood pressure or whose hypertension is due to a known secondary cause (for example certain endocrine disorders) are less likely to benefit directly from this line of research.
What this research studies
Researchers are studying bacterial extracellular vesicles (tiny particles released by gut microbes) using well-established rat models of normal and high blood pressure to see how vesicle contents differ. They will compare vesicles from normotensive and stroke-prone hypertensive rats, measure inflammatory signals in the gut and brain cardiovascular centers, and track blood pressure changes. Experiments include molecular analysis of vesicle cargo (like flagellin and LPS) and assessing how those cargos affect gut and brain inflammation. The goal is to map a clear pathway from gut-derived vesicles to neuroinflammation and hypertension.
Why it matters
Potential benefit: If confirmed, this work could point to new treatments that target bacterial vesicles or gut inflammation to help lower high blood pressure.
How similar studies have gone: Prior studies connect gut microbes and inflammation to hypertension, but focusing on bacterial extracellular vesicles is a newer approach with limited clinical testing so far.
Where this research is happening
-
Baylor College of Medicine
Houston, United States Active
Researchers
- Principal investigator: Durgan, David J — Baylor College of Medicine
- Study coordinator: Durgan, David J
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About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page.