Excretion of Urinary Mucoprotein Following Parathyroid Extract in Rats.

Abstract
Control rats excrete, over a 72-hr. period, 0.35-1.92 (mean: 1.08) mg. urinary mucoprotein detd. as mannose-galactose standard. Following the injn. of 1000 units of parathyroid extract (Lilly), the excretion of mucoprotein increased significantly to 0.52-4.52 (mean 2.84) mg. This in-crease is correlated in time with the dissolution of bone matrix, with an increase in serum mucoprotein, and with the appearance of mucoprotein granules in kidney tubule cells and mucoprotein-containing casts in tubules.