Biomaterial Database

Antagonism of the 5-HT-induced bronchoconstriction in the cat. 1983

R Reiche, and H H Frey

In cats in which bronchoconstriction was induced and maintained by infusion of 5-HT, the bronchodilator effects of ketanserin, a related compound, cyproheptadine, clenbuterol and aminophylline were compared. The novel 5-HT2 antagonists ketanserin and R50970 were active in doses of about 10 nmol/kg, cyproheptadine was about 5 times less potent, but had a longer duration of action. Clenbuterol and aminophylline were only partially effective against 5-HT-induced bronchoconstriction. There was no reliable effect of the 5-HT antagonists against carbachol-induced bronchoconstriction.

UI	MeSH Term	Description	Entries
D007650	Ketanserin	A selective serotonin receptor antagonist with weak adrenergic receptor blocking properties. The drug is effective in lowering blood pressure in essential hypertension. It also inhibits platelet aggregation. It is well tolerated and is particularly effective in older patients.	3-(2-(4-(4-Fluorobenzoyl)piperidinol)ethyl)-2,4(1H,3H)-quinazolinedione,R-41,468,R-41468,R 41,468,R 41468,R41,468,R41468
D008297	Male		Males
D010880	Piperidines	A family of hexahydropyridines.
D011247	Pregnancy	The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.	Gestation,Pregnancies
D001980	Bronchi	The larger air passages of the lungs arising from the terminal bifurcation of the TRACHEA. They include the largest two primary bronchi which branch out into secondary bronchi, and tertiary bronchi which extend into BRONCHIOLES and PULMONARY ALVEOLI.	Primary Bronchi,Primary Bronchus,Secondary Bronchi,Secondary Bronchus,Tertiary Bronchi,Tertiary Bronchus,Bronchi, Primary,Bronchi, Secondary,Bronchi, Tertiary,Bronchus,Bronchus, Primary,Bronchus, Secondary,Bronchus, Tertiary
D002217	Carbachol	A slowly hydrolyzed CHOLINERGIC AGONIST that acts at both MUSCARINIC RECEPTORS and NICOTINIC RECEPTORS.	Carbamylcholine,Carbacholine,Carbamann,Carbamoylcholine,Carbastat,Carbocholine,Carboptic,Doryl,Isopto Carbachol,Jestryl,Miostat,Carbachol, Isopto
D002415	Cats	The domestic cat, Felis catus, of the carnivore family FELIDAE, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of Africa and extreme southwestern Asia. Though probably present in towns in Palestine as long ago as 7000 years, actual domestication occurred in Egypt about 4000 years ago. (From Walker's Mammals of the World, 6th ed, p801)	Felis catus,Felis domesticus,Domestic Cats,Felis domestica,Felis sylvestris catus,Cat,Cat, Domestic,Cats, Domestic,Domestic Cat
D002976	Clenbuterol	A substituted phenylaminoethanol that has beta-2 adrenomimetic properties at very low doses. It is used as a bronchodilator in asthma.	NAB-365,Planipart,NAB 365,NAB365
D003533	Cyproheptadine	A serotonin antagonist and a histamine H1 blocker used as antipruritic, appetite stimulant, antiallergic, and for the post-gastrectomy dumping syndrome, etc.	Antergan,Dihexazin,Periactin,Peritol,Viternum
D005260	Female		Females