Histochemical, Metabolic and Ultrastructural Studies of the Maturation Zone of the Rachitic Rat Epiphyseal Plate.

EHRLICH, MICHAEL G.; WEISS, CHARLES; MANKIN, HENRY J.; TREADWELL, BENJAMIN V.; SANZONE, CHARLES
Journal of Bone & Joint Surgery - American Volume:
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Abstract

Histochemical, autoradiographic, and electron microscopic studies of the maturation zone in the epiphyseal plate of rachitic rats showed a failure of synthesis of polysaccharide and hence of matrix production, a delay in transport of the synthesized macromolecules without alteration in lysosomal enzyme content, and ultrastructural changes consistent with the observed metabolic abnormalities. It is suggested that the principal defect in the maturation zone of the epiphyseal plate of rachitic rats may be a local deficiency in the high energy phosphate required for metabolic activity.

Copyright 1973 by The Journal of Bone and Joint Surgery, Incorporated