title: Diurnal variation in the activity of cholesterol  7 -hydroxylase in the livers of fed and fasted rats.
mesh_terms: D000818:Animals; D001835:Body Weight; D002247:Carbon Isotopes; D002784:Cholesterol / Q000032:analysis; D002940:Circadian Rhythm; D003513:Cycloheximide / Q000494:pharmacology; D003609:Dactinomycin / Q000494:pharmacology; D005215:Fasting; D008099:Liver / Q000187:drug effects / Q000201:enzymology*; D008297:Male; D008862:Microsomes, Liver / Q000032:analysis / Q000201:enzymology; D051381:Rats; D013250:Steroid Hydroxylases / Q000378:metabolism*; D013997:Time Factors; D014444:Tyrosine Transaminase / Q000378:metabolism
chemical_list: D002247:Carbon Isotopes; D003609:Dactinomycin; D002784:Cholesterol; D003513:Cycloheximide; D013250:Steroid Hydroxylases; D014444:Tyrosine Transaminase