Immunomodulatory effects of alcoholic and hydroalcoholic extracts of <i style="">Moringa olifera</i> Lam leaves

Abstract

Effects of 50, 100 and 200 mg/kg body weight of the alcoholic and hydro-alcoholic extract of leaves of <i style="">M. olifera</i> were studied on various immune paradigms like delayed type hypersensitivity reaction using SRBC as an antigen, determination of antibody titer, neutrophil adhesion test as an indicator for neutrophil index, total leucocyte count in cyclophosphamide induced immunosuppressed animals and carbon clearance assay as a measure of phagocytic activity. Hydro-alcoholic extract of <i style="">M. olifera</i> substantially enhanced cellular immune response, humoral immune response, neutrophil index and phagoctic activity in doses of 100 and 200 mg/kg body weight. The ethanolic extract (200 mg/kg body wieght) was efficient in improving immune response. The results suggest that <i style="">M. olifera</i> has a significant role to play as an immune stimulator.