Anticholecystokinin activities of loxiglumide.
The anticholecystokinin activities of loxiglumide, (D,L-4-(3,4-dichloro-benzoylamino)-5-(N-3-methoxypropyl-pentylamino++ +)-5-oxo- pentanoic acid, CR 1505) are described. Loxiglumide antagonizes in vivo the contractions of the gall bladder of guinea pig induced or mediated by cholecystokinin-8 (CCK-8) (i.v. ED50 = 0.24 mumol/kg), the emptying of the gall bladder of the mouse induced by CCK-8 (i.v. ED50 = 29 mumol/kg, oral ED50 = 42 mumol/kg), the retardation of gastric emptying of the rat induced by CCK-8 (i.p. ED50 = 13 mumol/kg), the retardation of the pyloric transit in the mouse induced by CCK-8 (i.v. ED50 = 3.7 mumol/kg, oral ED50 = 11 mumol/kg), the hypermotility of the ileum of the rabbit induced by CCK-8 (i.v. ED50 = 1.2 mumol/kg) and the contractions of the gall bladder of the non-anesthetized dog induced by caerulein (i.v. ED50 ca. 11 mumol/kg). Loxiglumide also antagonizes the satiety behaviour of the rat elicited by CCK-8 (i.p. ED50 = 0.65 mumol/kg) and the exocrine pancreatic hypersecretion in the anaesthetized dog induced by CCK-8 (i.v. ED50 ca. 0.35 mumol/kg). Loxiglumide has a simple, non-polypeptidic chemical structure and is active after parenteral and after oral administration.
Rotta Research Laboratorium, Monza, Italy.
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D000758:Anesthesia; D000818:Animals; D002108:Ceruletide / Q000494:pharmacology; D002766:Cholecystokinin / Q000037:antagonists & inhibitors*; D004285:Dogs; D005260:Female; D005704:Gallbladder / Q000187:drug effects; D005769:Gastrointestinal Motility / Q000187:drug effects; D005973:Glutamine / Q000031:analogs & derivatives*; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008297:Male; D051379:Mice; D010179:Pancreas / Q000187:drug effects / Q000378:metabolism; D011377:Proglumide / Q000031:analogs & derivatives* / Q000494:pharmacology; D011817:Rabbits; D051381:Rats; D011919:Rats, Inbred Strains; D013045:Species Specificity
D005973:Glutamine; C053737:loxiglumide; D002108:Ceruletide; D002766:Cholecystokinin; D011377:Proglumide