administration of the photolyzed pbb mixture of firemaster bp-6 to immature male wistar rats caused both dose-related decreases in thymus weight and increase in hepatic microsomal benzo [ a ] pyrene hydroxylase ( ahh ) , 4-dimethylaminoantipyrine n-demethylase and nadph-cytochrome c reductase activities and cytochrome p-450 content .
C0005080
benzo [ a ] pyrene hydroxylase
C0003927
ahh