PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11430877-5 2001 In contrast, rat, monkey and human brain MAO-B activities were inhibited by thioperamide, with respective K(i) values of 174.6, 8.2 and 10.8 microM, more potently than MAO-A activity. thioperamide 76-88 monoamine oxidase B Homo sapiens 41-46 11430877-6 2001 These results indicate that thioperamide, which elicits a strong activation of histamine release and turnover to N-tele-methylhistamine from histamine, competitively inhibits the conversion of N-tele-methylhistamine to N-tele-methylimidazoleacetic acid in human and monkey brains where MAO-B predominates. thioperamide 28-40 monoamine oxidase B Homo sapiens 286-291