The effect of phenylpentenyl-khatamines on the release of radioactivity from rat striatal tissue prelabelled with [3H]dopamine

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Abstract
The CNS-stimulating properties of leaves of the khat shrub (Catha edulis, Celastraceae) are presumed to be due mainly to (-)-cathinone, a phenylpropylamine alkaloid that has been shown to have an amphetamine-like releasing effect at physiological catecholamine storage sites. Recently, several phenylpentenylamine alkaloids have been identified in khat leaves, and these have been evaluated, in-vitro, in the present study for their ability to induce release of radioactivity from [3H]dopamine-prelabelled rat striatal tissue. It was found that the phenylpentenylamines have a weak releasing effect, and are therefore considered unlikely to play an important role in the stimulating properties of khat leaves.