Extraction and Concentration of Mammogenic Fractions from Anterior Pituitary Gland.

It has been shown that appreciable quantities of mammogenic factor are left in initial residue of anterior pituitary gland after extraction of the known hormones by usual technics. This factor was extractable by either a monosodium-disodium phosphate buffer solution or a saline solution. The active factor precipitated from the phosphate buffer system along with phosphate salts after addition of et…