Results 141 to 150 of about 1,506,940 (201)
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Quantitative structure - activity relationships of cardiotonic agents
Progress in Drug Research Fortschritte Der Arzneimittelforschung Progres Des Recherches Pharmaceutiques, 2000Quantitative structure-activity relationships (QSARs) of different cardiotonic agents are presented. A critical analysis of all QSARs provides a very vivid picture of the mechanisms of varying cardiotonic agents. The cardiotonics can be broadly put into 2 categories: cardiac glycosides and nonglycoside cardiotonics, which include phosphodiesterase of ...
Satya P Gupta
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New cardiotonic agents: A search for digitalis substitute
Life Sciences, 1978Adawia A Alousi
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Synthesis of Amrinone, A Cardiotonic Agent
Journal of the Chinese Chemical Society, 1988AbstractA new synthesis of amrinone, 1, from 5‐(4‐pyridinyl) −2(1H)‐pyridone, 5, is reported. Nitration at C‐3 of the pyridone ring of 5 followed by reduction afforded amrinone. Another synthetic route was also carried out by bromination at C‐3 of the pyridone ring of 5 followed by substitution with sodium azide to give the corresponding azide ...
Min‐Jen Shiao +2 more
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Cardiotonic agents and the sodium transient
Trends in Pharmacological Sciences, 1981Abstract The authors discuss the possible link between membrane excitation and the calcium transient in cardiac muscle.
Tai Akera, Theodore M. Brody
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Synthesis of Milrinone, a Cardiotonic Agent
HETEROCYCLES, 1990A new synthesis of milrinone from 6-methyl-5-(4-pyridinyl)-2(1H)-pyridone is reported. A convenient synthesis of 3,4'-bipyridines is achieved. They can be converted into pyridone by hydrogenolysis and hydrolysis, respectively.
Min-Jen Shiao +2 more
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Cardiovascular Pharmacology of the Vasodilator-Cardiotonic Agent, 349U85
Journal of Cardiovascular Pharmacology, 1992349U85 is a chemically novel, nonglycoside, noncatecholamine cardiotonic-vasodilator agent with a unique cardiovascular profile in vitro and in vivo. 349U85 and milrinone, 10(-6) to 3 x 10(-5) M each, produce concentration-dependent increases in tension development of 33-60% and 37-60%, respectively, with corresponding 5-18% and 17-55% increases in ...
R P, Steffen, W B, Wastila
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1984
Publisher Summary This chapter mainly discusses the major developments of new inotropic agents over the last three years. Compounds that are not reviewed are glucagon, anthopleurin,g ionophores, the cardiotonic principles of ginger, a newly synthesized analog of PGI2, and SKF 86466, a selective α2-adrenoceptor agonist.
Bernd Wetzel, Norbert Hauel
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Publisher Summary This chapter mainly discusses the major developments of new inotropic agents over the last three years. Compounds that are not reviewed are glucagon, anthopleurin,g ionophores, the cardiotonic principles of ginger, a newly synthesized analog of PGI2, and SKF 86466, a selective α2-adrenoceptor agonist.
Bernd Wetzel, Norbert Hauel
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Mechanisms of Action of Novel Cardiotonic Agents
Journal of Cardiovascular Pharmacology, 2002Regulation of myocardial contractility by cardiotonic agents is achieved by an increase in intracellular Ca2+ mobilization (upstream mechanism), an increase in Ca2+ binding affinity to troponin C (central mechanism), or facilitation of the process subsequent to Ca2+ binding to troponin C (downstream mechanism).
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Cardiotonic agents in the management of chronic cardiac failure
American Heart Journal, 1982Heart failure is a syndrome with distinct clinical signs and symptoms. The severity of cardiac failure and a deterioration in functional capacity can be determined by a progressive exercise test and by the noninvasive determination of maximum oxygen uptake.
K T, Weber, V, Andrews, J S, Janicki
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European Journal of Pharmacology, 1987
The effect on the contractile protein system of MCI-154, a novel and potent cardiotonic agent, was examined by using thin bundles of chemically skinned fibers from the guinea-pig papillary muscles. MCI-154 increased the Ca2+ sensitivity of the contractile protein system of the cardiac skinned fibers.
Y, Kitada +3 more
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The effect on the contractile protein system of MCI-154, a novel and potent cardiotonic agent, was examined by using thin bundles of chemically skinned fibers from the guinea-pig papillary muscles. MCI-154 increased the Ca2+ sensitivity of the contractile protein system of the cardiac skinned fibers.
Y, Kitada +3 more
openaire +2 more sources