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Published:
May 14, 2020Keywords:
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Main Article Content
Effect of <i>Evodia rutaecarpa</i> (Juss) Benth extract on Alzheimer disease in mice
Abstract
Purpose: To investigate the protective effect of Evodia rutaecarpa (Juss.) Benth. extract (ERBE) against Alzheimer's disease in 3xTg-AD mice.
Methods: The cognitive function of 3xTg-AD mice was assessed using Morris water maze test. The levels of amyloid beta deposits and NeuN in the mouse hippocampus were evaluated by immunohistochemistry. Brain neurotrophic derived factor (BDNF) and tyrosine kinase B (TrkB) expressions were determined by western blot analysis.
Results: ERBE treatment significantly ameliorated learning and memory deficits in AD mice, as shown by increased time spent in the target zone during probe tests. The escape latency in the animals treated with 400 mg/kg ERBE (20.5 ± 1.3 s) was significantly higher than untreated 3xTg-AD mice (12.4 ± 1.3 s, p < 0.01). In addition, ERBE significantly decreased Aβ deposits, increased NeuN-positive cells, and upregulated the expressions of BDNF (1.4 ± 0.2, p < 0.05) and TrkB (1.1 ± 0.2, p < 0.05) in 3xTg AD mice.
Conclusion: The results suggest that ERBE administration may be a useful strategy for treating memory impairment induced by several neurodegenerative diseases.
Keywords: Evodia rutaecarpa, Alzheimer, Memory impairment, NeuN-positive cells
