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. 1984 Aug;81(16):5130–5134. doi: 10.1073/pnas.81.16.5130

Abnormal collagen metabolism in cultured skin fibroblasts from patients with Duchenne muscular dystrophy.

H P Rodemann, K Bayreuther
PMCID: PMC391651  PMID: 6591184

Abstract

Total collagen synthesis is decreased by about 29% (P less than 0.01) in skin fibroblasts established in vitro from male patients with Duchenne muscular dystrophy (DMD) as compared with that in normal male skin fibroblasts in vitro. The reduction in collagen synthesis is associated with an approximately 2-fold increase in collagen degradation in DMD fibroblasts. Correlated to these alterations in the metabolism of collagen, DMD fibroblasts express a significantly higher hydroxyproline/proline ratio (DMD: 1.36-1.45; P less than 0.01) than do normal fibroblasts (controls: 0.86-0.89). The increased hydroxylation of proline residues of collagen (composed of type I and type III) could be the cause for the enhanced degradation of collagen in DMD fibroblasts.

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Selected References

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