Biomaterial Database

Inhibitory effect of sodium cromoglycate on pulmonary responses to histamine administered after indomethacin in anaesthetized guinea-pigs. 1988

H W Mitchell

Department of Physiology, University of Western Australia, Nedlands.

1. Histamine (2-4 micrograms kg-1 i.v.) increased airways resistance (Raw) and decreased dynamic lung compliance (Cdyn) in urethane-anaesthetized guinea-pigs. The effects on Raw were almost abolished by atropine (0.1 mg kg-1 i.v.) and reduced by vagal cooling (11-16 degrees C). 2. Histamine-induced changes in Raw and Cdyn were significantly (P less than 0.05) enhanced by indomethacin (1 mg kg-1 i.v.). 3. In animals not treated with indomethacin, exposure to an aerosol containing sodium cromoglycate (0.01-2% for 30 s) failed to affect subsequent (3 min) histamine-induced bronchoconstriction. 4. Administration of an aerosol containing low (0.01-0.2%) concentrations of sodium cromoglycate had no effect on the enhanced responses (i.e. hyperreactivity) seen after indomethacin. However, more concentrated sodium cromoglycate aerosols (greater than 0.2%) reduced or abolished the hyperreactivity to histamine seen after indomethacin. 5. It was concluded that sodium cromoglycate can prevent the development of hyperreactivity to histamine, possibly by interacting with some mechanism utilized by both histamine and indomethacin in this model.

UI	MeSH Term	Description	Entries
D007213	Indomethacin	A non-steroidal anti-inflammatory agent (NSAID) that inhibits CYCLOOXYGENASE, which is necessary for the formation of PROSTAGLANDINS and other AUTACOIDS. It also inhibits the motility of POLYMORPHONUCLEAR LEUKOCYTES.	Amuno,Indocid,Indocin,Indomet 140,Indometacin,Indomethacin Hydrochloride,Metindol,Osmosin
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
D001993	Bronchodilator Agents	Agents that cause an increase in the expansion of a bronchus or bronchial tubes.	Bronchial-Dilating Agents,Bronchodilator,Bronchodilator Agent,Broncholytic Agent,Bronchodilator Effect,Bronchodilator Effects,Bronchodilators,Broncholytic Agents,Broncholytic Effect,Broncholytic Effects,Agent, Bronchodilator,Agent, Broncholytic,Agents, Bronchial-Dilating,Agents, Bronchodilator,Agents, Broncholytic,Bronchial Dilating Agents,Effect, Bronchodilator,Effect, Broncholytic,Effects, Bronchodilator,Effects, Broncholytic
D004205	Cromolyn Sodium	A chromone complex that acts by inhibiting the release of chemical mediators from sensitized MAST CELLS. It is used in the prophylactic treatment of both allergic and exercise-induced asthma, but does not affect an established asthmatic attack.	Disodium Cromoglycate,Sodium Cromoglycate,Aarane,Bicromat Spray,Cromoglicic Acid,Cromoglycate,Cromoglycic Acid,Cromolyn,FPL-670,Intal,Lomudal,Nalcrom,Nasalcrom,Opticrom,Vicrom,Acid, Cromoglicic,Acid, Cromoglycic,Cromoglycate, Disodium,Cromoglycate, Sodium,FPL 670,FPL670
D006168	Guinea Pigs	A common name used for the genus Cavia. The most common species is Cavia porcellus which is the domesticated guinea pig used for pets and biomedical research.	Cavia,Cavia porcellus,Guinea Pig,Pig, Guinea,Pigs, Guinea
D006632	Histamine	An amine derived by enzymatic decarboxylation of HISTIDINE. It is a powerful stimulant of gastric secretion, a constrictor of bronchial smooth muscle, a vasodilator, and also a centrally acting neurotransmitter.	Ceplene,Histamine Dihydrochloride,Histamine Hydrochloride,Peremin
D006633	Histamine Antagonists	Drugs that bind to but do not activate histamine receptors, thereby blocking the actions of histamine or histamine agonists. Classical antihistaminics block the histamine H1 receptors only.	Antihistamine,Antihistamines,Histamine Antagonist,Antagonist, Histamine,Antagonists, Histamine
D000336	Aerosols	Colloids with a gaseous dispersing phase and either liquid (fog) or solid (smoke) dispersed phase; used in fumigation or in inhalation therapy; may contain propellant agents.	Aerosol
D000403	Airway Resistance	Physiologically, the opposition to flow of air caused by the forces of friction. As a part of pulmonary function testing, it is the ratio of driving pressure to the rate of air flow.	Airway Resistances,Resistance, Airway,Resistances, Airway