Investigating the causes of heart rhythm disorders and sodium channel issues
Official title: A Versatile Chemical-Genetic Approach to Determine Bases for Arrhythmogenesis and Sodium Channelopathies
Funded at University of Iowa · NIH-10984460 · Data updated 2026-11-12
This study is looking at how changes in a specific gene can cause heart rhythm problems, and it’s for people who want to understand more about conditions like long QT syndrome and Brugada syndrome; researchers will use a special method to temporarily turn off a heart channel to see how it affects heart function, which could help find new treatments.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Iowa NIH-funded |
| Lab location | 1 site (Iowa City, United States) |
| Project start | December 22, 2022 |
| Project end | November 30, 2026 |
| Funding year | 2025 |
| Award (this year) | $583,373 |
| NIH project number | 5R01HL163979-03 |
| Project ID | NIH-10984460 on NIH RePORTER |
Who could benefit from this research
✓Could help
Ideal candidates for this research include individuals diagnosed with inherited arrhythmia syndromes or those with mutations in the SCN5A gene.
✕Less likely to help
Patients without genetic mutations related to sodium channelopathies or those with unrelated cardiac conditions may not benefit from this research.
What this research studies
This research focuses on understanding how mutations in the SCN5A gene, which affects the sodium channel NaV1.5, lead to various heart rhythm disorders such as long QT syndrome and Brugada syndrome. By using a novel chemical-genetic approach, the researchers aim to temporarily silence the NaV1.5 channel in a controlled environment to observe its effects on heart function. This method allows for a detailed examination of how different mutations impact cardiac excitability and arrhythmogenesis, potentially leading to new therapeutic strategies. The study utilizes advanced rodent models to replicate human heart conditions and assess the physiological significance of sodium channels in the heart.
Why it matters
Potential benefit: If successful, this research could lead to improved treatments for patients with inherited arrhythmias and related cardiac conditions.
How similar studies have gone: Previous research has shown promise in understanding sodium channelopathies, but this specific chemical-genetic approach is relatively novel.
Where this research is happening
-
University of Iowa
Iowa City, United States Active
Researchers
- Principal investigator: Ahern, Christopher a — University of Iowa
- Study coordinator: Ahern, Christopher a
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.