PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18000819-6 2008 A p38 antagonist also overcame the block of LTP by sodium nitroprusside, an agent that releases NO, suggesting that NO release occurs upstream of MAPK activation. Nitroprusside 51-71 mitogen activated protein kinase 14 Rattus norvegicus 2-5