PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1361312-3 1992 DMED, a 4(5)substituted imidazole, has been shown to inhibit adrenal steroidogenesis and human liver microsomal alfentanil metabolism, reactions mediated by cytochrome P-450. Alfentanil 112-122 cytochrome P450 family 4 subfamily F member 3 Homo sapiens 157-173 1519785-3 1992 It has been shown previously that alfentanil clearance is independent of the polymorphic debrisoquine hydroxylase (P-450 2D6), and it is therefore of interest to identify the human cytochrome P-450 enzymes involved in noralfentanil formation, the primary reaction involved in the oxidative N-dealkylation at the piperidine nitrogen. Alfentanil 34-44 cytochrome P450 family 4 subfamily F member 3 Homo sapiens 181-197 3140691-3 1988 The role of a specific cytochrome P-450 form, debrisoquine 4-hydroxylase, in the metabolism of alfentanil was investigated by competitive inhibition experiments over the concentration range 4-100 microM. Alfentanil 95-105 cytochrome P450 family 4 subfamily F member 3 Homo sapiens 23-39