PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1635661-4 1992 Related experiments, using acetylcholinesterase (AChE) enzyme activity as a biochemical parameter, indicate that 5HT hastens the decline of enzyme activity. Serotonin 113-116 acetylcholinesterase Rattus norvegicus 27-47 1635661-4 1992 Related experiments, using acetylcholinesterase (AChE) enzyme activity as a biochemical parameter, indicate that 5HT hastens the decline of enzyme activity. Serotonin 113-116 acetylcholinesterase Rattus norvegicus 49-53