title: The effect of phenobarbital, 3-methylcholanthrene, 3,4-benzpyrene, and pregnenolone-16 alpha-carbonitrile on microsomal heme oxygenase and splenic cytochrome P-450.
mesh_terms: D000818:Animals; D001580:Benzopyrenes / Q000494:pharmacology*; D003577:Cytochrome P-450 Enzyme System / Q000378:metabolism*; D006418:Heme; D008297:Male; D008748:Methylcholanthrene / Q000494:pharmacology*; D008861:Microsomes / Q000201:enzymology*; D008862:Microsomes, Liver / Q000201:enzymology; D010105:Oxygenases / Q000378:metabolism*; D010634:Phenobarbital / Q000494:pharmacology*; D011285:Pregnenolone Carbonitrile / Q000494:pharmacology*; D051381:Rats; D013053:Spectrophotometry; D013056:Spectrophotometry, Ultraviolet; D013154:Spleen / Q000166:cytology / Q000201:enzymology*; D013997:Time Factors
chemical_list: D001580:Benzopyrenes; D011285:Pregnenolone Carbonitrile; D006418:Heme; D008748:Methylcholanthrene; D003577:Cytochrome P-450 Enzyme System; D010105:Oxygenases; D010634:Phenobarbital