NIH-funded research R01 grant

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.

More Aging research and trials

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionOcean State Research Institute, INC.
NIH-funded
Lab location1 site (Providence, United States)
Project startSeptember 20, 2026
Project endMay 31, 2031
Funding year2026
Award (this year)$514,340
NIH project number1R01HL181104-01A1
Project IDNIH-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

Related research

Other NIH-funded projects on the same topics.

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.
Last reviewed 2026-11-14 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.