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  • Title: Evaluation of CNS Depressant and Anti-anxiety Activities of Leaves of Convolvulus pluricaulis.
    Author: Khan S, Kala C, Goyal M, Yadav SK, Taleuzzaman M.
    Journal: Cent Nerv Syst Agents Med Chem; 2023; 23(1):48-56. PubMed ID: 36825716.
    Abstract:
    BACKGROUND: Convolvulus pluricaulis is a native plant that is commonly mentioned in Ayurveda as a Rasayana and is primarily recommended for use in mental stimulation and rejuvenation therapy. Convolvulus pluricaulis is used as a brain tonic. The plant is reported to be a prominent memory-improving drug. It is used as a psychostimulant and tranquilizer. It is reported to reduce mental tension. OBJECTIVE: The present study aimed to explore the protective effect of hydroalcoholic extract from the leaves of Convolvulus pluricaulis along with CNS depressant and anti-anxiety activities, in models of mice. METHODS: The extract from leaves of Convolvulus pluricaulis were sequentially isolated with a mixture of water and alcohol solution in the soxhlet apparatus. An acute toxicity study was conducted as per OECD guidelines no. 423, in which 18 Albino male mice were treated with different doses (1, 10, 100, 500, 1000, and 2000 mg/kg) of hydroalcoholic extract of Convolvulus pluricaulis and assessed for toxicity parameters for 14 days. Various psychomotor activities of hydroalcoholic extract from leaves of Convolvulus pluricaulis for 100, 200, and 300 mg/kg doses were performed in mice by using various tests like actophotometer, open field, rota-rod, grip strength tests, elevated plus maze, hole board test, inclined plane, chimney test. RESULTS: The hydroalcoholic extract from leaves of Convolvulus pluricaulis was found to fall under category 4 in the acute toxicity study. Therefore, 100, 200, and 300 mg/kg doses of hydroalcoholic extract of leaves of Convolvulus pluricaulis were selected for the further pharmacological study. The results of psychomotor tests (actophotometer, open field, rota-rod, grip strength, hole board test, inclined plane, chimney test, elevated plus maze, light-dark model) for test doses 100, 200, and 300 in mice showed CNS depressant and anti-anxiety effects. CONCLUSION: Hydroalcoholic extract from leaves of Convolvulus pluricaulis at the 100, 200, and 300 mg/kg doses has shown CNS depressant and anti-anxiety effects in mice models.
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