COLLAGEN CONTENT OF BARREN AND PREVIOUSLY PREGNANT UTERINE HORNS IN OLD MICE

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Abstract
Summary. The collagen content of the uterine horns of young (2 months old) virgin mice and 2-year-old mice which had ceased breeding was determined by estimation of hydroxyproline. Both total collagen content and collagen concentration were greater ( x 3 and x 1 ·5 respectively) in the old mice but no difference was found between horns which had contained foetuses, and others which, as a result of ovariectomy on one side before sexual maturity, had not.