Anti-Nociceptive and Anti-Inflammatory Effects of Stem Bark Extract of Ficus Capensis Thunb (Moraceae) by Bioactivity Fractionation

Oluwaseyi   K.   Wakeel; Abraham    I.   Abe; Oluropo    B.   Awosan; Mokaila    K.   Olapade; Temitope    J.   Olatoyan-Layonu; Olugbenga    A.   Olowe; Oluwaseyi    A.    Adeyeba

doi:10.2174/1871523019666200825194616

Abstract

Objective: This study investigated the antinociceptive and anti-inflammatory activities of the aqueous extract of Ficus capensis (AEFC) by bio-guided fractionation.

Methods: The anti-nociceptive and anti-inflammatory effects of AEFC (250, 500, 1000 mg/kg, i.p) were assessed using acetic acid-induced writhing, hot plate, tail-flick, formalin tests, and carrageenan- induced paw edema, respectively. The AEFC was fractionated base on polarity difference into butanol, ethyl acetate, and n-hexane fractions. The fractions (500 mg/kg) obtained were subjected to the same experimental procedures mentioned above. The EAF, which exerted the most productive activities, was further subjected to fractionation procedures that yielded six fractions (labeled CF1-CF6). These fractions (200 mg/kg) were tested for potential antinociceptive and anti-inflammatory activities. Notable antagonists (Naloxone and atropine) of the nociceptive pathway were used to evaluate the mechanism of the antinociceptive action of F. capensis.

Results and Discussion: The AEFC, BF, EAF, and CF4 caused a significant (p<0.05) reduction in the number of abdominal writhes, an increase in reaction time against the hot plate, tail-flick tests, and a significant (p<0.05) inhibition in both phases of formalin test. The AEFC, BF, EAF, CF4, and CF6 caused a significant (p<0.05) inhibition of paw edema development due to carrageenan. Atropine significantly reversed the antinociceptive effect of CF4 in both phases of the formalin test. The results obtained revealed that CF4 produced central and peripheral antinociceptive effects, while CF6 is peripherally mediated.

Conclusion: The results support the traditional uses of F. capensis in the treatment of various diseases associated with pain and inflammation. The column fraction CF4 exhibited muscarinic receptor- mediated antinociceptive activity.

Keywords: Ficus capensis, antinociceptive, anti-inflammatory, fractionation, atropine, activity-guided.

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DOI https://dx.doi.org/10.2174/1871523019666200825194616	Print ISSN 1871-5230
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Anti-Inflammatory & Anti-Allergy Agents in Medicinal Chemistry

Anti-Nociceptive and Anti-Inflammatory Effects of Stem Bark Extract of Ficus Capensis Thunb (Moraceae) by Bioactivity Fractionation

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