PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1691738-2 1990 The stimulatory effect of histamine is mediated via an increase in adenylate cyclase activity, whereas the effect of acetylcholine and gastrin are mediated via an increase in cytosolic levels of calcium. Calcium 195-202 gastrin Homo sapiens 135-142