PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11762694-8 2001 The results of the present study show that in hyperoxia-exposed rats, metformin treatment reverses the abolished vascular relaxation to AChe. Metformin 70-79 acetylcholinesterase Rattus norvegicus 136-140