title: Repression of RNA transciption during the development of analgesic tolerance to morphine.
mesh_terms: D000698:Analgesia; D000818:Animals; D001923:Brain Chemistry; D002843:Chromatin / Q000187:drug effects* / Q000302:isolation & purification; D004361:Drug Tolerance; D008297:Male; D009020:Morphine / Q000494:pharmacology*; D012313:RNA / Q000096:biosynthesis*; D051381:Rats; D013698:Templates, Genetic; D014158:Transcription, Genetic / Q000187:drug effects*
chemical_list: D002843:Chromatin; D012313:RNA; D009020:Morphine