Biomaterial Database

Potent bronchoconstrictor effects of aerosolized prostaglandin D2 in dogs. 1980

M A Wasserman, and R L Griffin, and F B Marsalisi

Previously, we demonstrated that prostaglandin D2 (PGD2), a natural product of the endoperoxide PGH2, evoked bronchoconstriction when given I.V. to dogs (PROSTAGLANDINS 13:255-269, 1977). The present investigation in anesthetized dogs demonstrated that aerosols of PGD2 (0.001-0.1%) produced concentration-dependent increases in pulmonary resistance (RL) and decreases in dynamic lung compliance(CDYN) which were short-lived and equipotent to PGF2 alpha. These alterations in pulmonary mechanics were partially, yet significantly, inhibited by atropine, thereby suggesting that at least a portion of the bronchoconstriction may be cholinergically mediated. Concomitant cardiovascular depressant effects of both PGD2 and PFG2 alpha aerosols were much less and more variable than their bronchopulmonary effects. These results demonstrate a potent bronchoconstrictor effect of aerosolized PGD2 in dogs. PGD2 warrants further attention as a possible mediator of the bronchospasm seen in acute, reversible airways obstruction.

UI	MeSH Term	Description	Entries
D007700	Kinetics	The rate dynamics in chemical or physical systems.
D008168	Lung	Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.	Lungs
D008170	Lung Compliance	The capability of the LUNGS to distend under pressure as measured by pulmonary volume change per unit pressure change. While not a complete description of the pressure-volume properties of the lung, it is nevertheless useful in practice as a measure of the comparative stiffness of the lung. (From Best & Taylor's Physiological Basis of Medical Practice, 12th ed, p562)	Compliance, Lung,Compliances, Lung,Lung Compliances
D008297	Male		Males
D011453	Prostaglandins	A group of compounds derived from unsaturated 20-carbon fatty acids, primarily arachidonic acid, via the cyclooxygenase pathway. They are extremely potent mediators of a diverse group of physiological processes.	Prostaglandin,Prostanoid,Prostanoids
D011457	Prostaglandins D	Physiologically active prostaglandins found in many tissues and organs. They show pressor activity, are mediators of inflammation, and have potential antithrombotic effects.	PGD
D011460	Prostaglandins F	(9 alpha,11 alpha,13E,15S)-9,11,15-Trihydroxyprost-13-en-1-oic acid (PGF(1 alpha)); (5Z,9 alpha,11,alpha,13E,15S)-9,11,15-trihydroxyprosta-5,13-dien-1-oic acid (PGF(2 alpha)); (5Z,9 alpha,11 alpha,13E,15S,17Z)-9,11,15-trihydroxyprosta-5,13,17-trien-1-oic acid (PGF(3 alpha)). A family of prostaglandins that includes three of the six naturally occurring prostaglandins. All naturally occurring PGF have an alpha configuration at the 9-carbon position. They stimulate uterine and bronchial smooth muscle and are often used as oxytocics.	PGF
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
D003251	Constriction, Pathologic	The condition of an anatomical structure's being constricted beyond normal dimensions.	Stenosis,Stricture,Constriction, Pathological,Pathologic Constriction,Constrictions, Pathologic,Pathologic Constrictions,Pathological Constriction,Stenoses,Strictures
D004285	Dogs	The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)	Canis familiaris,Dog