title: Interaction between angiotensin IV and adenosine A(1) receptor related drugs in passive avoidance conditioning in rats.
abstract: The functional interaction between ANG (3--8) (ANG IV) and adenosine A(1) receptor related drugs in passive avoidance (step-through) task in rats was studied in Wistar rats. ANG IV exerted dose-dependent (inverted-U) improvement of the retention while sarilesin (an angiotensin II analog) impaired this effect. Co-administration of theophylline and ANG IV, both in ineffective doses, enhanced the retention. The selective adenosine A(1) receptor agonist cyclopentyladenosine (CPA) attenuated ANG IV-induced memory enhancement.
authors.affiliation: Laboratory of Experimental Psychopharmacology, Institute of Physiology, Bulgarian Academy of Sciences, Acad.G. Bonchev Str., Bl. 23, 1113 Sofia, Bulgaria. jane_tch@yahoo.com
authors.forename: J
authors.initials: J
authors.lastname: Tchekalarova
authors.forename: T
authors.initials: T
authors.lastname: Kambourova
authors.forename: V
authors.initials: V
authors.lastname: Georgiev
mesh_terms: D015762:2-Chloroadenosine / Q000494:pharmacology; D000241:Adenosine / Q000031:analogs & derivatives / Q000494:pharmacology; D000804:Angiotensin II / Q000031:analogs & derivatives* / Q000494:pharmacology*; D000818:Animals; D001362:Avoidance Learning / Q000187:drug effects*; D004305:Dose-Response Relationship, Drug; D004347:Drug Interactions; D007276:Injections, Intraventricular; D008297:Male; D058915:Purinergic P1 Receptor Antagonists; D051381:Rats; D017208:Rats, Wistar; D018047:Receptors, Purinergic P1 / Q000187:drug effects*; D013806:Theophylline / Q000494:pharmacology
chemical_list: D058915:Purinergic P1 Receptor Antagonists; D018047:Receptors, Purinergic P1; D000804:Angiotensin II; D015762:2-Chloroadenosine; C012877:angiotensin II, des-Asp(1)-des-Arg(2)-Ile(5)-; C048599:N(6)-cyclopentyladenosine; D013806:Theophylline; D000241:Adenosine