1) Anti-inflammatory agent 
(from the article `endocrine system, human`) The first step in steroid hormone synthesis is the conversion of cholesterol into pregnenolone, which occurs in mitochondria (organelles that produce ...
<chemical> Chemical name: Pregn-5-en-20-one, 3-hydroxy-, (3beta)- ... (12 Dec 1998) ... 
Type: Term Pronunciation: preg-nēn′ō-lōn Definitions: 1. A steroid that serves as an intermediate in the biosynthesis of numerous hormones, including progesterone. Serum levels are elevated in a rare form of congenital adrenal hyperplasia.