Without the strengthening protein dystrophin, which is missing from diseased fibers in muscular dystrophy, extracellular calcium ions leak through the torn wall of the fiber and compromise the muscle fiber's function.

Question

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Dystrophin is important for maintaining the structural integrity of muscle fibers, and its absence in muscular dystrophy leads to increased membrane permeability and calcium leakage, which impairs muscle function.

Without the Strengthening Protein Dystrophin, Which Is Missing from Diseased