Thyrocalcitonin: Hypocalcemic Hypophosphatemic Principle of the Thyroid Gland

Abstract

A factor that lowers serum calcium and inorganic phosphate in rats has been purified 500-fold from 0.1N HCl extracts of hog thyroid glands. It is distinct from thyroxine and triiodothyronine and appears to be a polypeptide.