Author(s): Ibulubo MT, Eze GI, Ozolua RI, BaxterGrillo D, Uwaya DO
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Abstract BACKGROUND: Garcinia kola is popularly used in African traditional medicine for the relief of acute bronchoconstrictive episodes. OBJECTIVE: In this study, we examined the anti-asthmatic and morphological effects of the ethanol extract of G. kola in animal model. MATERIALS AND METHODS: Guinea pigs were sensitized with ovalbumin and then given doses of 200 or 400 mg/kg/day for 21 consecutive days. Theophylline (10 mg/kg/day) was used as a standard. At the end of the exposure, the animals were exposed to 0.2\% histamine aerosol in a chamber. Lymphocyte count, bronchial histology and morphometry were done. RESULTS: Compared with non-sensitized controls, 200 mg/kg/day dose of the extract significantly (P < 0.05) increased the time taken for onset of preconvulsive dyspnea while the dose of 400 mg/kg/day significantly (P < 0.01) reduced bronchial wall thickness. Lymphocytes counts were not significantly affected but the bronchi of extract-treated animals were histologically clearer of lesions visible in the sensitized. CONCLUSION: These protective and ameliorative properties lend credence to the use of G. kola in ethnomedicine.
This article was published in Pharmacognosy Res
and referenced in Medicinal & Aromatic Plants