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Evaluation of the immunomodulatory effect of oral administration of the methanol extract of gongronema latifolium (utazi) in wistar albino rats
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The aim of the present study was to evaluate the immunomodulatory effect of methanol extract of Gongronema latifolium (utazi) on Wistar Albino Rats. A total of sixteen (16) Wistar albino rats were used for the study and divided into four (4) groups of four (4) rats each. The normal control was administered normal saline while the negative control was administered pyrogallol in order to suppress the immune system. The treated rats were administered 200 mg/kg body weight and 400 mg/kg body weight of the plant extract and 2% pyrogallol to represent the low and high doses respectively. These administrations lasted 21 days after which blood was drawn through ocular puncture and serum collected for the assay. The immunomodulatory activity was evaluated on haematological indices (packed cell volume, haemoglobin and total white blood cell count), haemaglutination titre (primary and secondary humoral antibody) and the delayed type hypersensitivity (DTH). No significant (p0.05) differences were observed in the haematological indices. Significant (P0.05) increase. These comparison were made against the negative control. This study suggests that Gongronema latifolium possesses immunomodulatory effect..