PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16054502-7 2005 Recent observations suggest that PAI-1, the main inhibitor of PAs, shows greater expression in the isthmus compared to the ampulla and the local generation of plasmin is inhibited. Protactinium 62-65 plasminogen Homo sapiens 159-166