Understanding how aging and diabetes affect blood vessel growth and healing in legs
Official title: Immune-mediated mechanisms of VEGF-A165 alternative splicing in angiogenesis in the context of Advanced Aging
Funded at Ocean State Research Institute, INC. · NIH-11368569 · Data updated 2026-11-12
A study explores how immune signals influence VEGF variants to improve blood vessel growth in older adults with diabetes who have PAD.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Ocean State Research Institute, INC. NIH-funded |
| Lab location | 1 site (Providence, United States) |
| Project start | September 20, 2026 |
| Project end | May 31, 2031 |
| Funding year | 2026 |
| Award (this year) | $514,340 |
| NIH project number | 1R01HL181104-01A1 |
| Project ID | NIH-11368569 on NIH RePORTER |
Who could benefit from this research
✓Could help
Adults over 65 with diabetes and PAD who are at risk of critical limb ischemia.
✕Less likely to help
Individuals without PAD or without aging/diabetes-related risk for vascular complications may not benefit directly.
What this research studies
If you are over 65 and living with diabetes and PAD, this research looks at how the immune system changes VEGF-A, a key molecule for new blood vessel growth, and how aging might alter this process. The team uses a mouse model that mimics PAD in aged versus young subjects to understand why older individuals have poorer blood flow recovery after arterial injury. By uncovering the immune triggers that shift VEGF-A165 toward pro- or anti-angiogenic forms, the project aims to identify new ways to reprogram macrophages and promote healing in ischemic legs. This work could lay the groundwork for future therapies that enhance blood vessel formation where it is most needed.
Why it matters
Potential benefit: If successful, the findings could guide new treatments to improve blood flow and limb healing for older adults with diabetes who have PAD.
How similar studies have gone: Previous research has shown VEGF-A variants influence blood vessel growth, but the role of immune-mediated splicing in aging-related PAD remains to be clarified.
Where this research is happening
-
Ocean State Research Institute, INC.
Providence, United States Active
Researchers
- Principal investigator: Mantsounga, Chris S — Ocean State Research Institute, INC.
- Study coordinator: Mantsounga, Chris S
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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.