Preliminary Investigation of the Possible Anti-inflammatory and Antioxidant Activities of Extract of Callichilia subsessilis Stapf. (Apocynaceae)
Journal Title: Tropical Journal of Natural Product Research - Year 2018, Vol 2, Issue 1
Abstract
Received 06 December 2017 Revised 26 December 2017 Accepted 01 January 2018 Published online 07 January 2018 Callichilia subsessilis (Apocynaceae) is commonly found along the coast of West Africa. In South Eastern Nigeria, it is believed to be useful for medicinal purposes and mostly used by traditional bone setters especially in Ozuitem of Abia state. The antioxidant, anti-inflammatory and antinociceptive potential of extract of Callichilia subsessilis leaf were investigated. Cold maceration method was used in the extract preparation. The scavenging of 2, 2-diphenyl-1picrylhydrazyl (DPPH) radical was used in the evaluation of antioxidant activity. Formalin- and egg albumin-induced paw oedema was used in the anti-inflammatory test while acetic acidinduced writhing and tail flick test were used in the antinociceptive test. The extract was dissolved in 5 % dimethyl sulfoxide (DMSO) and was tested at doses of 50, 100 and 200 mg kg-1. The negative control group received 5 mL kg-1, 5 % DMSO (vehicle) while acetyl-salicylic acid (aspirin) (200 mg kg-1) and pentazocine, 5 mg kg-1 (tail flick test) were used as the reference drugs. The extract produced concentration-dependent antioxidant activity that competes with ascorbic acid. The extract significantly (P < 0.05) inhibited formalin- and egg albumin-induced paw oedema in a dose- and time-dependent manner when compared with the vehicle-treated group. The extract significantly (P < 0.05) reduced pain sensation in both antinociceptive models used. The activities of the extract (100 mg kg-1) were comparable with the reference drugs used in all the models. In conclusion, this study provided the pharmacological basis for the use of Callichilia subsessilis in the traditional management of inflammatory conditions.
Authors and Affiliations
Samuel O. Onoja, Elizabeth O. Ikwuagwu
Keywords
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