title: Inhibitory effect of chronic administration of morphine on RNA polymerase activites of mouse liver and brain nuclei.
mesh_terms: D000818:Animals; D001921:Brain / Q000166:cytology / Q000187:drug effects; D002247:Carbon Isotopes; D002467:Cell Nucleus / Q000201:enzymology*; D012321:DNA-Directed RNA Polymerases / Q000037:antagonists & inhibitors*; D004305:Dose-Response Relationship, Drug; D008099:Liver / Q000166:cytology / Q000187:drug effects; D008297:Male; D051379:Mice; D008810:Mice, Inbred C57BL; D009020:Morphine / Q000008:administration & dosage / Q000494:pharmacology*; D013997:Time Factors
chemical_list: D002247:Carbon Isotopes; D009020:Morphine; D012321:DNA-Directed RNA Polymerases