Serveur d'exploration Chloroquine

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Comparative toxicity of chloroquine and bis[(chloro-7″-quinolyl-4″)-amino-2′ propyl]-1,4-piperazine (WR 3863)

Identifieur interne : 003C36 ( Main/Exploration ); précédent : 003C35; suivant : 003C37

Comparative toxicity of chloroquine and bis[(chloro-7″-quinolyl-4″)-amino-2′ propyl]-1,4-piperazine (WR 3863)

Auteurs : Domingo M. Aviado [États-Unis] ; Samuel Bellet [États-Unis]

Source :

RBID : ISTEX:AF857F8358324697CCFCF3102543D0CD8C4B89A4

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English descriptors

Abstract

Abstract: A derivative of chloroquine, WR 3863, was investigated in four animal species. In mice infected with Plasmodium berghei, WR 3863 suppressed parasitemia in quantities 50 times larger than chloroquine. In infected rats, the effective suppressive dose of WR 3863 was 10 times that of chloroquine. The cardiac effects of the two compounds were different: (a) WR 3863 did not reduce output in the anesthetized dog; (b) myocardial contractility of the cat heart was not depressed by WR 3863 unless close to the lethal dose was injected intravenously; and (c) excitability of the rat atrial muscle was increased by WR 3863. On the other hand, chloroquine (a) depressed cardiac output; (b) depressed myocardial contractility; and (c) reduced the excitability and prolonged the effective refractory period. Both drugs reduced aortic blood pressure, increased pulmonary arterial pressure, and increased pulmonary resistance in the dog, but a quantitative comparison could not be made because the solvent used for WR 3863 was not completely inert.

Url:
DOI: 10.1016/0041-008X(69)90033-7


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Le document en format XML

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<div type="abstract" xml:lang="en">Abstract: A derivative of chloroquine, WR 3863, was investigated in four animal species. In mice infected with Plasmodium berghei, WR 3863 suppressed parasitemia in quantities 50 times larger than chloroquine. In infected rats, the effective suppressive dose of WR 3863 was 10 times that of chloroquine. The cardiac effects of the two compounds were different: (a) WR 3863 did not reduce output in the anesthetized dog; (b) myocardial contractility of the cat heart was not depressed by WR 3863 unless close to the lethal dose was injected intravenously; and (c) excitability of the rat atrial muscle was increased by WR 3863. On the other hand, chloroquine (a) depressed cardiac output; (b) depressed myocardial contractility; and (c) reduced the excitability and prolonged the effective refractory period. Both drugs reduced aortic blood pressure, increased pulmonary arterial pressure, and increased pulmonary resistance in the dog, but a quantitative comparison could not be made because the solvent used for WR 3863 was not completely inert.</div>
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