The Effects of X-irradiation on Collagen Metabolism in Rat Skin

Author: De Loecker W.   Van Der Schueren E.   Stas M.L.   Doms D.  

Publisher: Informa Healthcare

ISSN: 1362-3095

Source: International Journal of Radiation Biology, Vol.29, Iss.4, 1976-04, pp. : 351-358

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Abstract

Collagen metabolism in rat skin and the response to X-radiation are studied during three consecutive hair-cycles. Collagen biosynthesis and turnover, assessed by the hydroxylation of [U-14C]-proline, proceeds as a function of the periodic hair-growth phenomenon.A single X-radiation treatment to the skin does not affect the amino-acid composition of collagen, but reduces the proline hydroxylation capacity of the fibroblasts. The initial damage to the tissue, resulting in a reduced collagen concentration of the skin, particularly noticeable after several hair-cycles, is at least partially responsible for the delayed skin lesions after irradiation.

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