Department Of Pharmacology

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    Exploring the ameliorative potential of Bacopa monnieri in acetic acid induced ulcerative colitis in mice
    (Taylor and Francis Ltd., 2023-07-10T00:00:00) Devi, Karam; Bali, Anjana; Bhatia, Pankaj; Singh, Nirmal; Jaggi, Amteshwar Singh
    The aim of the present study was to evaluate the role of Bacopa monnieri in acetic-acid-induced ulcerative colitis in mice. Acetic acid (3%v/v, in 0.9% saline) was infused intrarectally to induce ulceration in mice. Administration of acetic acid resulted in severe inflammation of the colon along with an increase in the myeloperoxidase (MPO) activity assessed on 7th day. Treatment with Bacopa monnieri extract (20 mg/kg and 40 mg/kg, p.o) and saponin-rich fraction (5 mg/kg and 10 mg/kg; p.o) for 7 days i.e. 2 days before and 5 days after acetic acid infusion, significantly attenuated the colonic inflammation in a dose-dependent manner. Furthermore, it also reduced the MPO levels and the disease activity score as compared to the control group. It may be concluded that Bacopa monnieri has the potential for ameliorating acetic-acid-induced colitis and its saponin-rich fraction may be responsible for this effect. � 2023 Informa UK Limited, trading as Taylor & Francis Group.
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    Antinociceptive activity of standardized extract of Bacopa monnieri in different pain models of zebrafish
    (Elsevier Ireland Ltd, 2021-08-19T00:00:00) Sharma, Mahima; Gupta, Pankaj Kumar; Gupta, Pankaj; Garabadu, Debapriya
    Ethnopharmacological relevance: Bacopa monnieri L. (Scrophulariaceae) is commonly known as Brahmi and traditionally used as a neuroprotective herbal medicine. Recently, Bacopa monnieri exhibited significant therapeutic activity against animal model of neuropathic pain. However, the therapeutic potential of methanolic extract of Bacopa monnieri in experimental animal model is yet to establish. Aim of the study: The present study was designed to evaluate the anti-nociceptive potential of standardized methanolic extract of Bacopa monnieri in experimental adult zebrafish (Danio rerio) model of pain. Materials and methods: The methanolic extract of Bacopa monnieri (BME) was standardized to bacoside-A using chromatographic method. Subsequently, BME (0.75, 1.25 and 5.0 mg/ml) was evaluated for anti-nociceptive activity using adult zebrafish model. Results: Standardized BME showed antioxidant effect through radical quenching activity in in vitro study. BME at 1.25 mg/ml significantly decreased the nociceptive effect induced by different noxious agents like acetic acid where as BME at 2.5 mg/ml exhibited significant antinociceptive activity against glutamate, formalin, capsaicin, cinnamaldehyde when compared to control and sham group animals. Conclusion: BME exerted antinociceptive activity in adult zebrafish. It could be presumed that BME may involve glutamatergic receptor, ASIC and TRP channel activity in its anti-nociceptive effect. BME could be considered as a potential therapeutic option in the management of pain. � 2021 Elsevier B.V.