PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21094146-6 2011 Trilostane (a 3betaHSD1 inhibitor) and ketoconazole (a CYP17A1 inhibitor) blocked the metabolism of both pregnenolone and progesterone. Pregnenolone 105-117 cytochrome P450 family 17 subfamily A member 1 Homo sapiens 55-62