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Title: Reduction of Amyloid-β deposition and attenuation of memory deficits by Tolfenamic acid.
Authors: Subaiea, Gehad M.
Ahmed, Aseef H.
Adwan, Lina
Zawia, Nasser H.
Keywords: Alzheimer's disease - Physiopathology;Alzheimer's disease - Dug therapy;Amyloid beta-protein precursor;Immunohistochemistry;Learning;Memory;Morris water maze;Anthranilic acids - Metabolism
Issue Date: 2014
Abstract: We have previously reported that tolfenamic acid treatment decreases the amyloidogenic proteins in C57BL/6 and in old hemizygous R1.40 transgenic mice via the degradation of the transcription factor specificity 1 protein (Sp1). The lowering of amyloid- protein precursor (A PP) and amyloid- (A ) in hemizygous R1.40 transgenic mice was accompanied by reversal of the identified spatial reference and working memory deficits observed in the mouse model. In this study, we examined the ability of tolfenamic acid to reduce the amyloid plaque burden, as well as to ameliorate spatial learning and memory deficits in homozygous R1.40 mice. Results from immunohistochemical analysis indicated that tolfenamic acid treatment resulted in a profound decrease in cerebral A plaque burden that was accompanied by improvements in spatial working memory assessed by spontaneous alternation ratio in the Y-maze. These results provide further evidence that tolfenamic acid could be utilized as a repurposed drug to modify Alzheimer’s disease pathogenesis
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