COMPOSITION OF EPIPHYSEAL CARTILAGE: II. DIFFERENCES IN COMPOSITION OF EPIPHYSEAL AND ARTICULAR CARTILAGE OF RACHITIC CHICKS

Abstract

The results of comparative analyses of epiphyseal and articular cartilages from the tibiae of rachitic chicks indicate a relationship between the amounts of mucopolysaccharides and of mineral constituents of these tissues, as evidenced by significantly close epiphyseal/articular ratios of hexosamine, uronic acids, and ash values. While the amount of collagen appears to be higher in articular cartilage, the amounts of mucopolysaccharide constituents, hexosamines and uronic acids, and of ash are greater in the epiphyseal cartilage.