Understanding how blood flow and pressure affect lungs in PAH
Official title: Hemodynamic Contributions to Vascular Dysfunction in Pulmonary Arterial Hypertension
Funded at University of Washington · NIH-11531183 · Data updated 2026-11-12
This grant studies how abnormal blood flow and pressure contribute to pulmonary arterial hypertension and how patient factors shape these effects, with the aim of guiding better therapies.
Quick facts
| Grant type | Career grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Washington NIH-funded |
| Lab location | 1 site (Seattle, United States) |
| Project start | April 15, 2023 |
| Project end | August 31, 2027 |
| Funding year | 2026 |
| Award (this year) | $45,306 |
| NIH project number | 3K08HL166696-04S1 |
| Project ID | NIH-11531183 on NIH RePORTER |
Who could benefit from this research
✓Could help
Adults diagnosed with pulmonary arterial hypertension or at risk due to vascular dysfunction.
✕Less likely to help
If you do not have PAH or related vascular conditions, this specific study may not benefit you directly.
What this research studies
This project uses bioengineering tools to study how shear stress and pressure in the lung arteries influence PAH in people who have the condition. It builds on data showing PAH patients’ arterial cells respond differently to high shear forces, and it plans to connect those responses to individual patient factors. The work combines vascular biology with innovative microfluidic models to mimic lung blood flow and examine cellular signaling related to calcium and cell communication. The goal is to identify pathways that could be targeted to prevent or slow PAH progression. Participation would involve analyzing patient-derived cells and potentially future therapeutic studies.
Why it matters
Potential benefit: If successful, the research could reveal new targets to treat PAH and improve survival and quality of life for patients.
How similar studies have gone: Preliminary data suggest distinct cellular responses to high shear stress in PAH, supporting potential for meaningful discoveries.
Where this research is happening
-
University of Washington
Seattle, United States Active
Researchers
- Principal investigator: Rayner, Samuel Gibson — University of Washington
- Study coordinator: Rayner, Samuel Gibson
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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.