How endothelin-1 affects tiny blood vessels in the retina during early diabetes
Endothelin-1 System Activation and Retinal Microvascular Dysregulation during Early Diabetes
This work aims to learn how a natural vessel‑tightening chemical called endothelin‑1 may reduce retinal blood flow early in diabetes and harm vision.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Texas A&m University Health Science Ctr NIH-funded |
| Lab location | 1 site (College Station, United States) |
| Project ID | NIH-11142473 on NIH RePORTER |
What this research studies
Researchers will use a pig model of type 1 diabetes, whose eyes are similar to humans', to study early changes in retinal blood flow. They will measure how small retinal arteries and veins widen or narrow, record blood flow speed, and test levels of endothelin‑1 and the enzymes and signals that produce its effects. The team will compare diabetic animals to healthy controls and manipulate key enzymes and signaling pathways to see whether blocking them restores normal vessel behavior. Findings will be used to identify molecular steps that could be targeted before visible eye damage or vision loss occurs.
Who could benefit from this research
Good fit: Adults with early diabetes or early signs of diabetic eye changes would be the most likely people to benefit from future treatments based on these results.
Not a fit: People with advanced diabetic retinopathy or established severe vision loss are less likely to gain direct benefit from this early‑stage work.
Why it matters
Potential benefit: If successful, this work could point to new ways to prevent early blood‑flow problems in the retina and reduce the risk of later vision loss from diabetes.
How similar studies have performed: Previous animal studies have shown reduced retinal blood flow and higher endothelin‑1 in early diabetes, but examining arteriole and venule function together and the specific enzyme/signaling steps is a novel approach.
Where this research is happening
College Station, United States
- Texas A&m University Health Science Ctr — College Station, United States (Active)
Researchers
- Principal investigator: Hein, Travis W — Texas A&m University Health Science Ctr
- Study coordinator: Hein, Travis W
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 below.