Scientists Trace Statin Muscle Pain to 3-Molecule Calcium Leak Mechanism

1 articles · Updated · ScienceDaily · Oct 20

Three statin molecules can bind a pocket on the RyR1 muscle-cell channel and hold it open, giving researchers a molecular explanation for statin-linked pain, weakness and rare severe muscle damage.
Cryo-electron microscopy showed the sequence: one molecule binds when the channel is closed, then two more stabilize the open state, causing a continuous calcium leak that can injure muscle tissue.
Atorvastatin was the main drug studied, but the team said the same interaction may extend across the statin class, helping explain why some patients struggle to tolerate the medicines.
More than 200 million people use statins worldwide, and the UBC-led researchers said the findings could help drugmakers redesign cholesterol drugs to preserve heart benefits while reducing muscle side effects.

Sources

Could the secret to pain-free cholesterol treatment lie in redesigning how statins interact with muscle calcium channels?

If statin muscle pain is structural, how can doctors distinguish genuine calcium leaks from the psychological nocebo effect?

Will this atomic-level discovery finally end the medical debate over whether statin-induced muscle aches are real or imagined?

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