title: [Stimulation of RNA synthesis in rat liver and isolated hepatocytes by silybin, an antihepatotoxic agent from Silybum marianum L. Gaertn (author's transl)].
abstract: The incorporation of [3H] orotic acid into RNA from rat livers is stimulated by the flavonolignane derivative Silybin. The time course of the RNA synthesis and its dose dependence were demonstrated with isolated hepatocytes and [3H]uridine. The specific radioactivity of the newly synthesized RNA in rats treated with silybin is markedly higher than that of the controls. From preliminary experiments there is no indication that the synthesis of a distinct species of RNA is stimulated preferentially.
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000187:drug effects / Q000378:metabolism; D002478:Cells, Cultured; D003593:Cytoplasm / Q000187:drug effects / Q000378:metabolism; D004305:Dose-Response Relationship, Drug; D005419:Flavonoids / Q000494:pharmacology*; D008099:Liver / Q000187:drug effects* / Q000378:metabolism; D008297:Male; D009963:Orotic Acid / Q000378:metabolism; D012313:RNA / Q000096:biosynthesis*; D051381:Rats; D012838:Silymarin / Q000494:pharmacology*; D013997:Time Factors; D014529:Uridine / Q000378:metabolism
chemical_list: D005419:Flavonoids; D012838:Silymarin; D009963:Orotic Acid; D012313:RNA; D014529:Uridine
vernacular_title: Stimulierung der RNA-Synthese in Rattenleber und in isolierten Hepatozyten durch Silybin, einen antihepatotoxischen Wirkstoff aus Silybum marianum L. Gaertn