Results 201 to 210 of about 35,623 (231)
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Mechanisms of hyperpnea induced by isoproterenol
Respiration Physiology, 1980We injected boluses of isoproterenol (2 to 3 micrograms) into the inferior vena cava to determine the effects on phrenic activity, end-tidal PCO2, arterial pressure and aortic flow in anesthetized cerebrate and unanesthetized decerebrate cats. We studied both spontaneously breathing animals and those paralyzed and servo-ventilated to keep end-tidal ...
Pritam Gill-Kumar, Frederic L. Eldridge
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Differentiation of receptors responsive to isoproterenol
Life Sciences, 1967Abstract Structural modification of 1-(3,4-dihydroxyphenyl)-2-amino-ethanol, by adding a methyl or ethyl group at the carbon alpha to the nitrogen or by adding various alkyl groups in the nitrogen center, changes sympathomimetic activity. A rank order evaluation of these changes indicates that the β-receptor population can be divided into two ...
H.J. Buzzo, A.M. Lands, F.P. Luduena
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Isoproterenol for the Treatment of Circulatory Shock
Annals of Internal Medicine, 1969Excerpt Limitation in cardiac competence as a determinant of survival after the onset of circulatory shock has been the subject of important experimental and clinical studies in recent years (1-3)....
MAX HARRY WEIL, HERBERT SHUBIN
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Journal of Pharmaceutical Sciences, 1970
Two simple, precise, and specific methods for the determination of isoproterenol in decomposed formulations are described. DEHP shakeout procedure, which depends upon ionpai formation with the unchanged drug at a suitable pH, enables the quantitative determination of isoproterenol from the DEHP-ether phase and of its sulfonic acid from the aqueous ...
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Two simple, precise, and specific methods for the determination of isoproterenol in decomposed formulations are described. DEHP shakeout procedure, which depends upon ionpai formation with the unchanged drug at a suitable pH, enables the quantitative determination of isoproterenol from the DEHP-ether phase and of its sulfonic acid from the aqueous ...
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Effect of isoproterenol on the abnormal T wave
The American Journal of Cardiology, 1972Abstract The effect of isoproterenol (1 to 9 μg) administered intravenously within 30 to 90 seconds was studied in 106 patients with abnormal negative T waves. T waves remained abnormal in patients with QRS >- 0.10 second and in patients with myocardial infarction or pericarditis.
Leonard S. Gettes +2 more
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Mechanism of the isoproterenol hyperpnea in the cat
Respiration Physiology, 1979To clarify the role of peripheral chemoreceptors in the abrupt hyperpnea induced by isoproterenol injection, we measured, in anesthetized cats, the time course of VE, PETCO2, H.R. and B.P. following i.v. bolus injection of 0.5--2 microgram isoproterenol before and after bilateral section of the carotid sinus (csx), aortic (ax) and vagus (vx) nerves. We
Karlman Wasserman +9 more
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Intraosseous Infusion of Dobutamine and Isoproterenol
Archives of Pediatrics & Adolescent Medicine, 1991Intraosseous infusion has been advocated as an emergency route in sick infants and children when intravenous access is not readily obtainable. Dobutamine hydrochloride and isoproterenol hydrochloride are useful emergency drugs that have not been studied when administered into the bone marrow.
John F. Bilello +3 more
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Effect of isoproterenol in digitalis cardiotoxicity∗
The American Journal of Cardiology, 1962Abstract 1. 1. Healthy dogs were given infusions of varying amounts of digoxin, and isoproterenol was then administered. 2. 2. In animals that had not previously shown electrocardiographic evidence of digitalis cardiotoxicity, isoproterenol administration frequently precipitated ectopic rhythms. 3. 3.
Louis D. Bennett +5 more
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THE PREVENTION OF ISOPROTERENOL DESENSITIZATION AND ISOPROTERENOL REVERSAL
The Journal of Pharmacology and Experimental Therapeutics, 1972J H, Fleisch, E, Titus
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“Unresponsiveness” to Isoproterenol
Chest, 1976John W. Jenne, Thomas W. Chick
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