PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2816414-1 1989 The changes of heart rate (HR) and dP/dtmax elicited by challenging the sensitized heart and by a bolus injection of histamine in the presence of cimetidine were observed. Histamine 117-126 dipeptidase 1 Homo sapiens 15-37