Abstract
The effect of protein malnutrition on collagen crosslinking was studied in different age groups of rats. The percent of reversibility of neutral salt-soluble collagen gel and the susceptibility of insoluble collagen to denaturing agents and pronase decreased with aging. The electrophoretic pattern of neutral salt-soluble collagen on sodium dodecyl sulphate polyacrylamide gels showed a decrease of α 1 and α 2 subunits and an increase of β-components, resulting in a decrease of α/β ratio in aging. There was a significant decrease in the aldehyde content of neutral salt-soluble collagen during age. Protein deficiency was found to impair the crosslinking and the effect was greater in younger animals than in older ones.
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