The lipid profile of normal adult male rats administered both ethanolic and aqueous leaf extracts of Landolphia owariensis (P. Beauv) were determined. The animals were distributed into two sets of four groups with five animals in each group. Each set had one group, which served as control while the other three groups in the two sets were administered different concentrations of the ethanolic and aqueous leaf extracts. The control groups were administered normal saline and the other groups’ 100, 200 and 300 mgkg-1 of the ethanolic and aqueous extracts respectively, twice daily for two weeks. The Total cholesterol (TC), Triacylglyceride (TAG), High Density Lipoprotein-Cholesterol (HDL-C), Low Density Lipoprotein- Cholesterol (LDL-C), and Very Low Density Lipoprotein (VLDL) levels were determined in both sets by colorimetric methods. The ethanolic extract showed a marked reduction of 87.45% in LDL-C level with the 100 mgkg-1 dose, though effect of all the three concentrations were significant but depreciated with increase in concentration. Animals administered both the extracts at all three concentrations increased in their HDL-C levels, but effect was pronounced in 100 and 200 mgkg-1with 15 and 150% increases respectively, in the aqueous extract group. There were dose-dependent reductions of TC levels, with the 100, 200 and 300 mgkg-1with reduction of 40.78, 37.59 and 34.56% respectively, in ethanolic extracts. There were 50.55 and 55.33% reduction in 100 and 200 mgkg-1 of the aqueous extracts on TAG level. The results are indicative of the hypocholesterolaemic potentials ofL. owariensis leaf extracts.
Key words: Aqueous extract, ethanolic extract, Hypocholesterolaemia, Landolphia owariensis.
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