Boosting heart pumping by modifying troponin I
Troponin I phosphorylation as a novel novel cardiac inotrope
Testing a new molecular change to troponin I to help hearts pump stronger in people with weak heart function.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Ohio State University NIH-funded |
| Lab location | 1 site (Columbus, UNITED STATES) |
| Project ID | NIH-11309680 on NIH RePORTER |
What this research studies
This project tests whether adding a specific chemical tag (a phosphate) to the heart protein troponin I can increase how strongly the heart contracts without raising calcium levels. Researchers will use mouse models to study the effects and the underlying mechanism on heart muscle performance and rhythm. They will also test the effects and safety of this troponin I change on human heart tissue samples. The goal is to determine whether this approach could become a safer way to improve heart pumping in disease.
Who could benefit from this research
Good fit: People with heart failure or reduced cardiac pumping (low ejection fraction), and patients donating heart tissue during surgery, would be the most relevant candidates for this work.
Not a fit: Patients whose symptoms are driven mainly by valve disease, structural heart defects, or non-contractile causes of symptoms may not benefit from this approach.
Why it matters
Potential benefit: If successful, this could lead to a safer treatment that improves heart pumping without increasing dangerous calcium-driven side effects like arrhythmia.
How similar studies have performed: Traditional inotrope drugs that raise intracellular calcium have failed long-term, while early animal studies of troponin I phosphorylation show promising improvements without raising calcium, but human clinical benefit remains unproven.
Where this research is happening
Columbus, UNITED STATES
- Ohio State University — Columbus, United States (Active)
Researchers
- Principal investigator: Biesiadecki, Brandon J — Ohio State University
- Study coordinator: Biesiadecki, Brandon J
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.