The Claim
Urolithin A improves diastolic function and reduces cardiac remodeling in a multi-hit mouse model of heart failure with preserved ejection fraction by activating PKGIα through oxidation at cysteine 42, as evidenced by echocardiographic improvements and abolition of effect in C42S knock-in mice.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Urolithin A enhances heart relaxation and prevents harmful structural changes in mice with heart failure and preserved ejection fraction by triggering a specific chemical modification in the PKGIα protein at cysteine 42, and this effect is lost when that modification site is genetically altered.
See the scientific wording
Urolithin A improves diastolic function and reduces cardiac remodeling in a multi-hit mouse model of heart failure with preserved ejection fraction (HFpEF) by activating PKGIα through oxidation at cysteine 42, as demonstrated by echocardiographic improvements and loss of effect in C42S knock-in mice.
Urolithin A directly modifies a specific spot on a heart protein called PKGIα, turning it on. This activated protein then signals another protein to release its grip on a calcium pump, allowing the heart muscle to pull calcium back in faster after each beat. This speeds up relaxation, making the heart fill more efficiently and reducing stiffness.
What the research says
1 studyStudy: Targeting Cysteine 42 in PKGIa limits diastolic dysfunction in HFpEF
In mice with a stiff heart, urolithin A helped the heart relax better and reduced damage — but only if a specific part of a heart protein (C42) was intact. When scientists changed that part, the medicine stopped working, proving it works by targeting that exact spot.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.