AN ASSAY OF THE THYROTROPHIC HORMONE (T. S. H.) BASED ON THE I131 UPTAKE OF THE THYROID GLAND OF THE NONHYPOPHYSECTOMIZED RAT

Abstract
A method for assay of pituitary thyrotropic hormone is descr., employing normal rats pretreated with iodinated casein and thereafter measuring the I131 uptake of the thyroid gland in response to test doses of the prepn. being assayed.