PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9257124-1 1997 This study uses microsomal membranes from rat testis tissue, including the cytochrome P450c17 (steroid 17 alpha-monooxygenase/17 alpha-hydroxyprogesterone aldolase, catalyzing the conversion of progesterone to androstenedione), to decipher the possible relation of NADPH-induced (no exogenous iron added) lipid peroxidation and cytochrome P450 inactivation and the protective effect of certain steroids. Progesterone 142-154 cytochrome P450, family 17, subfamily a, polypeptide 1 Rattus norvegicus 75-93