Structural analysis has revealed for the first time how a key messenger in the body's chemical communication system hooks up with one of the proteins that delivers it to sites of action in the body.

THE suggestion that thyroxine might be formed in Nature from tyrosine through the stage of diiodotyrosine was made at an early stage of the elucidation of the chemistry of thyroxine, and was made more ...

SOME of the manifestations of acute intermittent porphyria are suggestive of thyrotoxicosis. These include emotional lability, tachycardia and muscular weakness, and such findings have on occasion led ...