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    Pharmacognosy Communications
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    Pharmacognosy Communications
    retyeyutreu
    Original Article

    Antispasmodic Activity of Dried Ginger 70% Methanolic Crude Extract in Isolated Smooth Muscle Preparations

    Web AdminBy Web AdminMay 5, 2023Updated:May 5, 2023No Comments2 Mins Read
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    Muhammad Nabeel Ghayur1, 2,*, Anwarul Hassan Gilani1, 3

    1Department of Biological and Biomedical Sciences, Aga Khan University, Karachi, Sind, PAKISTAN.

    2Kentucky College of Osteopathic Medicine, University of Pikeville, Pikeville, Kentucky, USA.

    3Department of Public Health and Nutrition, The University of Haripur, Haripur, Khyber Pakhtunkhwa, PAKISTAN.

    DOI: 10.5530/pc.2023.2.12

    ABSTRACT

    Objectives: Ginger (Zingiber officinale Roscoe) is a popular edible herb consumed and known globally for its culinary and medicinal properties. Particularly in South Asia, the ginger rhizome is used in several Gastrointestinal (GI) related ailments. In this study, we report preliminary findings on the GI relaxant activity of the dried variety of ginger rhizome. Materials and Methods: Ginger rhizome was soaked in 70% aqueous-methanol and dried to give the extract (Gd.Ex). Segments of different isolated smooth muscle preparations were suspended in tissue baths. Results: Phytochemistry profiling showed that the extract has terpenoids, phenols, and alkaloids. On baseline of isolated tissues like rat stomach pylorus, rabbit jejunum, guinea-pig ileum and colon, and rat uterus, Gd.Ex was devoid of any stimulant effect up to 10 mg/mL. The extract was able to completely inhibit spasmogenicity induced with K+ 80 mM in stomach pyloric strips, indicating a Ca2+ Channel Blocking (CCB) mechanism. Gd.Ex in bolus (1-10 mg/mL) and cumulative dosing (0.3-3 mg/mL), showed a relaxant effect on spontaneously contracting baseline of rabbit jejunum. The extract was then tested against different standard GI stimulants like acetylcholine (ACh, 0.3 μM), histamine (0.3 μM), and K+ (50 mM) in guinea-pig ileum. Gd.Ex (3 mg/mL) pretreatment abolished the stimulant responses. A similar inhibitory effect of the extract (0.3-1 mg/mL) was observed in guinea-pig colon and rat uterus against ACh. Conclusion: The study shows the spasmolytic potential of dried ginger extract in different smooth muscle preparations. Together with the earlier published results of dried ginger in rat stomach fundus, this explains the benefit of ginger in potentiating gastric emptying and alleviating nausea.

    Keywords: Zingiber officinale, Rhizome, Antidiarrheal, Rat, Rabbit, Guinea-pig.

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    About Journal

    Pharmacognosy Communications [Phcog Commn.] is a quarterly journal published by Phcog.Net. It is a peer reviewed journal aiming to publish high quality original research articles, methods, techniques and evaluation reports, critical reviews, short communications, commentaries and editorials of all aspects of medicinal plant research. The journal is aimed at a broad readership, publishing articles on all aspects of pharmacognosy, and related fields. The journal aims to increase understanding of pharmacognosy as well as to direct and foster further research through the dissemination of scientific information by the publication of manuscripts. The submission of original contributions in all areas of pharmacognosy are welcome.
    Indexed and Abstracted in : Chemical Abstracts, Excerpta Medica / EMBASE, Google Scholar, CABI Full Text, Ulrich’s International Periodical Directory, ProQuest, Journalseek & Genamics, PhcogBase, EBSCOHost, Academic Search Complete, Open J-Gate, SciACCESS.
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