PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1623325-5 1992 The possible effects of methylene blue were investigated by subsequent in vitro experiments: Methylene blue together with light led to generation of fibrin(ogen) derivatives which have an increased tendency for aggregation but cannot be normally clotted by thrombin and even seem to interfere with normal fibrin polymerization. Methylene Blue 93-107 coagulation factor II, thrombin Homo sapiens 257-265