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3.
Fed Proc ; 36(12): 2595-8, 1977 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-913617

RESUMO

The tetrahydrocannabinols are among the most potent hypothermic agents known. A comparison of the hypothermic action of delta9-tetrahydrocannabinol (delta9-THC) with chlorpromazine (CPZ) and morphine shows the following order of hypothermic potency: CPZ greater than delta9-THC greater than morphine. A marked depression of oxygen consumption is produced by delta9-THC both in vivo and in the isolated perfused liver preparation. Simultaneous measurement of core temperature and tail temperature after delta9-THC shows that tail temperature is decreased more by delta9-THC than it is in animals that attain comparable core hypothermia without drug treatment. From these results, it is concluded that delta9-THC-induced hypothermia results primarily from decreased heat production and not from increased heat loss. Therefore, the processes involved in the hypothermic response to delta9-THC appear to differ from those that mediate CPZ- or morphine-induced hypothermia. A hypothesis is discussed in which the hypothermic action of delta9-THC is related to inhibition of membrane ATPase.


Assuntos
Clorpromazina , Dronabinol , Hipotermia/induzido quimicamente , Morfina , Animais , Temperatura Corporal/efeitos dos fármacos , Regulação da Temperatura Corporal/efeitos dos fármacos , Clorpromazina/farmacologia , Relação Dose-Resposta a Droga , Dronabinol/farmacologia , Morfina/farmacologia , Especificidade de Órgãos , Consumo de Oxigênio/efeitos dos fármacos
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