How the inner ear keeps its fluid pressure balanced
Molecular regulation of fluid pressure homeostasis in the inner ear
Researchers are finding the molecules that set and relieve fluid pressure in the inner ear to help people with hearing and balance problems caused by excess inner ear fluid.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of California Berkeley NIH-funded |
| Lab location | 1 site (Berkeley, United States) |
| Project ID | NIH-11319731 on NIH RePORTER |
What this research studies
The team uses tiny transparent zebrafish embryos so they can watch the developing inner ear and its pressure-relief valve in real time. They combine advanced live imaging, genetics, and genome editing with a single-cell gene expression atlas to pinpoint the cells and signals that control endolymph pressure. Experiments will test how those signals set the valve’s operating point and how the endolymphatic sac forms and responds to pressure changes. The goal is to reveal biological targets that could later lead to ways to prevent or reverse fluid buildup that causes hearing loss and dizziness.
Who could benefit from this research
Good fit: People with hearing loss, vertigo, or balance problems linked to excess inner ear fluid or conditions like Ménière's disease are the patients most likely to benefit from this research in the future.
Not a fit: People whose hearing loss is due to nerve damage, age-related degeneration, infection, or other non-fluid causes are less likely to receive direct benefit from these findings.
Why it matters
Potential benefit: If successful, this work could point to new drug targets or biological strategies to prevent or reduce inner ear fluid buildup that causes dizziness and hearing loss.
How similar studies have performed: Previous animal work, including the team's discovery of an ear 'pressure relief valve' in zebrafish, supports this approach, but moving from these basic findings to human treatments is still early and unproven.
Where this research is happening
Berkeley, United States
- University of California Berkeley — Berkeley, United States (Active)
Researchers
- Principal investigator: Swinburne, Ian Andrew — University of California Berkeley
- Study coordinator: Swinburne, Ian Andrew
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.