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    Article

    In vitro Antitoxoplasmal Activity of Some Medicinal Plants

    Ibrahim S. Al Nasr2,3, Waleed S. Koko3★, Tariq A. Khan4, Gamal E. Elghazali3★ Corresponding author

    1. 1College of Science and Arts at Uniaza, Qassim University, Saudi Arabia.
    2. 2College of Science and Arts at Al Rass, Qassim University, Saudi Arabia.
    3. 3College of Health Sciences at Al Rass, Qassim University, Al Qassim, Saudi Arabia.

    CORRESPONDENCE

    Waleed S. Koko

    College of Health Sciences at Al Rass, Qassim University, Al Qassim, Saudi Arabia.

    wasyko2002@yahoo.com

    Received: 21-12-2018; Revised: 22-01-2019.

    Volume 15, Issue 65 · pp. 568–572 · PUBLISHED 19 September 2019 · DOI: 10.4103/pm.pm_646_18

    View on Pharmacogn. Mag. original site ↗

    ABSTRACT

    Aim: In the present study, extracts from the leaves and fruit of Azadirachta indica A. Juss. collected from different areas, along with two other medicinal plants (Argemone mexicana L. and Xanthium brasilicum Vell.) with established antiprotozoal activity, will be evaluated for antitoxoplasmal activity using an in vitro technique. Materials and Methods: All plants were extracted with 100% methanol and examined for activity against the Toxoplasma gondii RH strain via an intracellularly invaded Vero cell line with calculated inhibition percentages. The 3‑(4,5‑dimethylthiazol‑2‑yl)‑2,5‑diphenyltetrazolium bromide colorimetric assay against the Vero cell line was used for cytotoxic evaluation, followed by selectivity index (SI) calculation. Results: X. brasilicum exhibited the best antitoxoplasmal activity with an IC50 of 7.19 µg/ml, followed by the A. indica fruits collected from Qassim, Kingdom of Saudi Arabia, and leaves collected from Central Sudan with an IC50 of 17.26 and 18.43 µg/ml, respectively. The best SI was obtained from the leaves of A. indica (6.28) collected from Sudan. Conclusion: Although X. brasilicum proved to have very potent antitoxoplasmal activity, the cytotoxicity was also very high, so the isolation of active compounds is highly recommended.

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      Nasr, I. S. A., Koko, W. S., Khan, T. A., & Elghazali, G. E. (2019). In vitro Antitoxoplasmal Activity of Some Medicinal Plants. Pharmacognosy Magazine, 15(65), 568–572. https://doi.org/10.4103/pm.pm_646_18