Assessment of Acute Toxicity and Analgesic Effect of Cedrus atlantica (Endl.) G. Manetti ex Carrière Stem Extracts.

Autor: Ameggouz, Mouna, Drioua, Soufiane, El-Guourrami, Otman, Azalmad, Hanane, Metni, Khairo El Baria, Koursaoui, Loubna, Zahidi, Ahmed, Doukkali, Anass, Satrani, Badr, Benzeid, Hanane
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Zdroj: Tropical Journal of Natural Product Research; Jul2024, Vol. 8 Issue 7, p7677-7681, 5p
Abstrakt: Cedrus atlantica is a Mediterranean medicinal plant used traditionally for the treatment of urinary tract infections and cancer. This study aims to evaluate the toxicity and analgesic properties of the stem extracts of Cedrus atlantica. Powdered stem of Cedrus atlantica was extracted successively with cyclohexane, ethyl acetate, and ethanol, in a Soxhlet apparatus, to yield extracts F1, F2, and F3, respectively. An aqueous extract (F4) was obtained by maceration of the residue at room temperature. Acute oral toxicity of the extracts was assessed in mice according to OECD guidelines. Analgesic activity of the extracts (500 mg/kg) was evaluated using the writhing and tail immersion tests, with aspirin (125 mg/kg), and morphine (0.1 mg/kg) as positive controls, respectively. Acute toxicity studies showed that Cedrus atlantica stem extracts have no significant toxic effects at a dose of 2000 mg/kg. In the writhing test, the aqueous extract (F4) demonstrated the highest analgesic activity with 18.33±1.55 writhes (50.66% inhibition), followed by the ethyl acetate extract (F2) with 19.33±1.77 writhes (47.97% inhibition). F2 and F4 were more effective than aspirin which caused 21.66±1.88 writhes (41.70% inhibition). In the tail immersion test, F2 and F4 showed significant central analgesic activity, both extracts significantly increased the reaction times, with F2 peaking at 5.02±0.45 seconds and F4 at 4.92±0.30 seconds, compared to morphine with reaction time of 7.70±0.18 seconds. These findings therefore suggest that Cedrus atlantica stem extracts are relatively safe on acute oral administration, and have potential for use as analgesic agent. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index