title: Inhibition of [14C]aminopyrine uptake in rat isolated gastric mucosal cells by two classes of psychotropic agents.
abstract: Certain CNS-active compounds decrease gastric acid secretion in vivo. In this study a number of tricyclic antipsychotic or antidepressant compounds together with haloperidol, a nontricyclic antipsychotic agent, were shown to inhibit dibutyryl-cAMP-stimulated [14C]aminopyrine uptake, an index of acid secretory activity in a rat isolated gastric mucosal cell preparation. The observed order of potency was: thioridazine greater than chlorpromazine greater than haloperidol approximately equal to desipramine approximately equal to imipramine greater than clozapine. Comparison of these potencies with those of the known (H+ + K+)ATPase inhibitors timoprazole and omeprazole revealed that the potency of timoprazole was similar to the one of clozapine while omeprazole was intermediate between thioridazine and chlorpromazine. Pirenzepine was ineffective.
mesh_terms: D053799:2-Pyridinylmethylsulfinylbenzimidazoles; D000632:Aminopyrine / Q000378:metabolism*; D000818:Animals; D001562:Benzimidazoles / Q000494:pharmacology; D003994:Bucladesine / Q000494:pharmacology; D003024:Clozapine / Q000494:pharmacology; D005744:Gastric Acid / Q000378:metabolism; D005753:Gastric Mucosa / Q000378:metabolism*; D008297:Male; D009853:Omeprazole / Q000494:pharmacology; D010295:Parietal Cells, Gastric / Q000187:drug effects / Q000378:metabolism; D010890:Pirenzepine / Q000494:pharmacology; D006180:Proton-Translocating ATPases / Q000037:antagonists & inhibitors; D011619:Psychotropic Drugs / Q000494:pharmacology*; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D053799:2-Pyridinylmethylsulfinylbenzimidazoles; D001562:Benzimidazoles; D011619:Psychotropic Drugs; D000632:Aminopyrine; D010890:Pirenzepine; D003994:Bucladesine; C038402:timoprazole; D006180:Proton-Translocating ATPases; D003024:Clozapine; D009853:Omeprazole