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Year : 2020  |  Volume : 41  |  Issue : 4  |  Page : 250-254

Central nervous system depressant activity of Jatamansi (Nardostachys jatamansi DC.) rhizome

1 Department of Dravyaguna, Institute of Teaching and Research in Ayurveda, Jamnagar, Gujarat, India
2 Pharmacology Laboratory, Institute of Teaching and Research in Ayurveda, Jamnagar, Gujarat, India

Correspondence Address:
Kalpesh Panara
Department of Dravyaguna, Institute of Teaching and Research in Ayurveda, Jamnagar - 361 008, Gujarat
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ayu.AYU_251_20

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Background: Sleep disorders have a comparatively high prevalence worldwide and create a burden on the health system. Pharmacological agents used for insomnia are associated with considerable side effects. Therefore, searching for safe and effective agents from plant-based natural sources is a worthy effort. Jatamansi (Nardostachys jatamansi DC.) rhizome has been recommended for insomnia and mental conditions in the Indian system of medicine. Aim: This study aimed to determine central nervous system (CNS) depressant activity of Jatamansi (N. jatamansi) rhizome on experimental animals. Materials and methods: Gross behavior study and open field test (locomotor activity) were performed by using Charle's foster albino rats whereas rota-rod test and pentobarbital-induced sleep test in Swiss albino mice. Animals were divided into 3 groups (per model) having six animals in each group. The control group was treated with water, the standard group with diazepam and the test drug with powder of N. Jatamansi rhizome. Results were calculated by one-way ANOVA and post hoc test with P < 0.05 as significant. Results: Data suggested that Jatamansi did not produce a significant effect on the behavior of animals. It reduced the horizontal activity significantly (P < 0.001) in the open field apparatus. The test drug did not show a significant decrease in latency of fall-off time in rota-rod performance in mice. Still, it exerted a significant effect by a reduction in latency of onset of sleep (P < 0.01) and also extended the total duration of sleep (P < 0.05) in albino mice in comparison to the control group. Conclusion: This study shows that Jatamansi rhizome powder possesses CNS depressant activity without affecting gross behavior and muscle coordination in rats.

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