Lens water channels and enzymes that protect against cataracts
Roles of Lens Aquaporins and GPX1 in Hydrogen Peroxide Balance, Homeostasis, and Aging
This work looks at how lens water channels (aquaporins) and the enzyme GPX1 control hydrogen peroxide in the eye to help prevent age-related cataracts in older adults.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | State University New York Stony Brook NIH-funded |
| Lab location | 1 site (Stony Brook, United States) |
| Project ID | NIH-11178396 on NIH RePORTER |
What this research studies
This project examines proteins in the eye lens — aquaporins and the antioxidant enzyme GPX1 — that help move or remove hydrogen peroxide, a chemical that builds up with age and UV exposure and can cloud the lens. Researchers will use lab experiments with intact lenses, cells, and model systems to see how changes in these proteins affect lens clarity, microcirculation, and oxidative balance. They will test whether aquaporins let hydrogen peroxide pass and how reduced GPX1 activity with age contributes to accumulation. The goal is to find biological steps that could be targeted to keep lenses clear longer.
Who could benefit from this research
Good fit: People aged 40 or older with early age-related lens changes or those able to donate eye tissue for research would be most relevant to this work.
Not a fit: People with congenital or trauma-related cataracts, or those seeking immediate surgical treatment, are unlikely to receive direct benefit from this lab-focused research.
Why it matters
Potential benefit: If successful, this work could point to new ways to prevent or delay age-related cataracts by protecting the lens from oxidative damage.
How similar studies have performed: Prior studies show antioxidant enzymes and some aquaporins can affect hydrogen peroxide handling, but applying these ideas specifically to lens aquaporins and GPX1 is a novel direction.
Where this research is happening
Stony Brook, United States
- State University New York Stony Brook — Stony Brook, United States (Active)
Researchers
- Principal investigator: Varadaraj, Kulandaiappan — State University New York Stony Brook
- Study coordinator: Varadaraj, Kulandaiappan
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.