title: [Changes in the content of matrix RNA coding tyrosine aminotransferase in the rat liver during hydrocortisone induction].
abstract: The effects of the glucocorticoid hydrocortisone on the synthesis of specific template RNA coding tyrosine aminotransferase (TAT) in rat liver during hormonal induction were studied. Using hybridization of complementary DNA (cDNA-TAT) with polysomal liver poly-A-mRNA, the content of specific mRNA-TAT in liver polysomes during and after hormonal induction, i. e. 4 and 16 hrs after hydrocortisone injection, respectively, was estimated. It was shown that 4 hrs after the hormone injection that mRNA-TAT content in liver polysomes is increased 3-4-fold, showing a return to the initial level after 16 hrs. Thus, transcription is the main link in the realization of glucocorticoid induction.
mesh_terms: D000818:Animals; D004247:DNA / Q000378:metabolism; D004790:Enzyme Induction / Q000187:drug effects; D005815:Genetic Code; D006854:Hydrocortisone / Q000494:pharmacology*; D008099:Liver / Q000201:enzymology*; D009693:Nucleic Acid Hybridization / Q000187:drug effects; D011061:Poly A / Q000378:metabolism*; D011132:Polyribosomes / Q000201:enzymology; D012333:RNA, Messenger / Q000378:metabolism*; D051381:Rats; D013698:Templates, Genetic; D014158:Transcription, Genetic; D014444:Tyrosine Transaminase / Q000096:biosynthesis*
chemical_list: D012333:RNA, Messenger; D011061:Poly A; D004247:DNA; D014444:Tyrosine Transaminase; D006854:Hydrocortisone
vernacular_title: Izmenenie soderzhaniia kodiruiushcheĭ tirozinaminotransferazu matrichnoĭ RNK v pecheni krys pri induktsii gidrokortizonom.