Influence of Hypophysectomy and Growth Hormone on Cartilage Sulfate Metabolism.

Abstract
Hypophysectomy of immature growing rats at 26 days of age resulted in a decrease of S35 uptake by costal cartilage to 11% of normal as revealed by specific activity ratios of cartilage to plasma inorganic sulfate. The injn. of 75 [mu]g. of growth hormone restored the ratio to 33% of normal. The specific activity of plasma inorganic sulfate of hypophysectomized rats was several fold higher than that of normal rats, and growth hormone produced a lowering toward normal.