alexa Abstract | Evaluation of CNS depressant activity of different plant parts of Nyctanthes arbortristis linn.

Indian Journal of Pharmaceutical Sciences
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The present study was carried out with the water-soluble portion of the ethanol extracts of flowers, barks, seeds and leaves of Nyctanthes arbortristis Linn. to confirm their CNS depressant activity. The ethanol extracts of the plant parts were obtained by soxhlet extraction. After performing the gross behavioral study, the CNS depressant activity was evaluated by observing the prolongation of sleeping time induced by pentobarbital sodium in mice. Attempts have been made to explore the possible mechanism behind this activity by determining their effect on brain monoamine neurotransmitters like dopamine and serotonin. The gross behavioral study showed that ethanol extracts of the leaves, flowers and seeds possess significant CNS depressant activity. The leaves, flowers, seeds and barks (600 mg/kg) showed significant and dose-dependent prolongation of onset and duration of sleep and so found to cause decrease dopamine and increase serotonin level. From which it can be concluded that the CNS depressant activity of the ethanol extracts of seeds, leaves and flowers may be due to the decrease in dopamine and increase in serotonin level.

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Author(s): Sanjita Das D Sasmal SP Basu


Nyctanthes arbortristis L., behavioral study, CNS depressant activity, histamine, serotonin

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