title: [Circadian course of delta 5,3 beta-hydroxysteroids and glucocorticosteroids in the plasma and brain of rats].
abstract: Corticosterone (B), pregnenolone (P) and dehydroepiandrosterone (D) undergo circadian variations in the rat plasma and brain. When the data are interpreted by the Cosinor method, the acrophases of P in brain and of D in plasma significantly precede the acrophase of B. The asynchrony of delta 5-3 beta-hydroxysteroid and glucocorticosteroid rhythms brings an additional argument in favor of separate regulatory mechanisms.
mesh_terms: D000818:Animals; D001921:Brain / Q000378:metabolism*; D002940:Circadian Rhythm; D005938:Glucocorticoids / Q000097:blood / Q000378:metabolism*; D006914:Hydroxysteroids / Q000097:blood / Q000378:metabolism*; D008297:Male; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D005938:Glucocorticoids; D006914:Hydroxysteroids
vernacular_title: Evolution circadienne de delta 5-3 beta-hydroxystéroïdes et de glucocorticostéroïdes dans le plasma et le cerveau de rat.