Abstract

This study investigates protection against oxidative stress and memory enhancing potential of long-term consumption of Moringa oleifera leaves. Male Wistar rat were fed with mixture of M.oleifera-supplemented diets (MOSD) partitioned in 1, 5, 10, and 20% continuously for 12weeks. Object recognition test (ORT) and Morris water maze (MWM) was used for assessing neurocognition. Changes in body weight, Lipid peroxidation (MDA), Glutathione (GSH), Catalase (CAT) and Acetylcholinesterase (AChE) activity was assayed in the brain tissue. Histomorphometric of the hippocampus was also examined. The diets progressively increase the body weigh after the 12weeks, improved spatial (MWM) and non-spatial (ORT) memory performance, protect against oxidative stress, inhibit AChE activity and suppresses neuronal degeneration in the hippocampus when stained with Cresyl violent stain. Conclusively, long-term consumption of MOSD shows strong protection against oxidative stress and hippocampal degeneration and improves neurocognition with dose dependent effect.

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