PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8387925-5 1993 Fluorescent ratio imaging with fura-2 revealed that addition of vasopressin to the cells results in an increase of [Ca2+]i which peaks within 20 s and does not return to resting levels during the 100 s observation period. Fura-2 31-37 arginine vasopressin Rattus norvegicus 64-75