title: In vitro biosynthesis of steroids from androstenedione by the ovaries and pyloric caeca of the starfish Asterias rubens.
mesh_terms: D015067:17-Hydroxysteroid Dehydrogenases / Q000378:metabolism; D013741:3-Oxo-5-alpha-Steroid 4-Dehydrogenase / Q000378:metabolism; D000735:Androstenedione / Q000096:biosynthesis; D000818:Animals; D004958:Estradiol / Q000096:biosynthesis; D004970:Estrone / Q000096:biosynthesis; D005260:Female; D012739:Gonadal Steroid Hormones / Q000096:biosynthesis*; D066298:In Vitro Techniques; D010053:Ovary / Q000378:metabolism; D011708:Pylorus / Q000378:metabolism; D013215:Starfish / Q000378:metabolism*; D013739:Testosterone / Q000096:biosynthesis
chemical_list: D012739:Gonadal Steroid Hormones; D004970:Estrone; D013739:Testosterone; D000735:Androstenedione; D004958:Estradiol; C003528:5-androstene-3,17-dione; D015067:17-Hydroxysteroid Dehydrogenases; D013741:3-Oxo-5-alpha-Steroid 4-Dehydrogenase