초록

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Abstract ▼ AI-Helper

The present study was undertaken to determine the inhibitory effects of orally administered ginseng saponins(SP), protopanaxadiol saponins (PD), and protopanaxatriol saponins(PT) on the development of morphine-induced tolerance and physical dependence in mice. The study also sought to determine the ...

The present study was undertaken to determine the inhibitory effects of orally administered ginseng saponins(SP), protopanaxadiol saponins (PD), and protopanaxatriol saponins(PT) on the development of morphine-induced tolerance and physical dependence in mice. The study also sought to determine the hepatic glutathione contents. which are closely related to the degree of detoxification of mine the effects of GS on morphine 6-dehydrogenase, which catalyzes the production of morphinone from morphine, and the roles of spinal descendign inhibitory systems in the production of antagonism. The results of the present study showed that GS, PD and PT administered orally inhibited the development of morphine induced tolerance and dependence. GS. PD and PT inhibited the reduction of hepatic glutathione concentration in mice treated chronically with morphine and the activity of morphine 6-dehydrogenase, and the activation of spinal descending inhibitory systems was inhibited by GS. So we hypothesized that the results were partially due to the dual action of the test drugs, the inhibition of morphinone production and the activated formation of morphinone-glutathinone conjugation, and the inhibition of the activatin of apinal descending inhibitory systems and the others.