PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15736921-7 2004 Moreover, the extracts inhibited MPO-catalyzed guaiacol oxidation in a concentration-dependent manner in a cell-free assay but, in contrast, did not affect MPO activity in isolated human neutrophils. Guaiacol 47-55 myeloperoxidase Homo sapiens 33-36