An estimate of the mean length of collagen fibrils in rat tail-tendon as a function of age - PubMed (original) (raw)
Comparative Study
An estimate of the mean length of collagen fibrils in rat tail-tendon as a function of age
A S Craig et al. Connect Tissue Res. 1989.
Abstract
A theoretical expression has been derived for the mean collagen fibril length in tendon based on the assumption that collagen fibrils originate in cell surface invaginations and terminate either at some remote cell surface or another collagen fibril bundle. The expression thus determined requires knowledge of the effective lengths of the fibrocytes (or fibrocyte assemblies) and the cellular content of the tendon. Both of these parameters have been measured experimentally as a function of age for rat-tail tendon using a combined light microscope and electron microscope approach. The results obtained for immature tendon suggest that the mean collagen fibril length is at least equal to the critical length required to maintain the appropriate tensile properties. In the most mature tissue studied, however, the mean-collagen fibril length is in excess of 100 times the critical length.
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