PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 24328340-9 2014 The decrease in progesterone production could be attributed to three different mechanisms, (1) an increase in production of reactive oxygen species (ROS), (2) an increase in HIF-1alpha activity, and (3) ultimately a decrease in the level of cytochrome P450 side chain cleavage (CYT P450scc). Progesterone 16-28 cytochrome P450, family 11, subfamily a, polypeptide 1 Mus musculus 282-289