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Smooth Muscle Actin in Dupuytren’s Contracture

The palmar fascia in Duputren’s contracture does not contract like a muscle: it’s more like the effect of an army of tiny rachets. Adjacent parallel strands of collagen are grabbed by myofibroblasts, which then shorten (“crimp”) lengthwise, pulling the strands to overlap more and more, and then gluing these strands together with crosslinks. Crimp, lock, […]