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  • Title: Fibroblast cultures in Duchenne muscular dystrophy. Alterations in synthesis and secretion of collagen and noncollagen proteins.
    Author: Ionasescu V, Lara-Braud C, Zellweger H, Ionasescu R, Burmeister L.
    Journal: Acta Neurol Scand; 1977 May; 55(5):407-17. PubMed ID: 857578.
    Abstract:
    Primary skin fibroblast cultures were grown from forearm pinch skin biopsies obtained from 24 patients with Duchenne muscular dystrophy (DMD) and ten normal controls matched for sex and age. The first subcultures were grown for 7 days and incubated with L-(3H)-proline for 24 hours. Intracellular collagen incorporation was significantly decreased (2.2 X) and extracellular collagen incorporation significantly increased (1.8 X) in fibroblast cultures from patients with DMD by both collagenase assay and polyacrylamide gel electrophoresis. The synthesis of noncollagen proteins showed low values from the DMD fibroblast cultures. The alterations in synthesis and secretion of collagen and noncollagen proteins were characteristic only for the log phase of DMD fibroblasts.
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