Application of fomes officinalis polysaccharides to preparation of medicine for preventing or/and treating Alzheimer's disease

The invention relates to the technical field of biological medicines and discloses application of fomes officinalis polysaccharides to preparation of a medicine for preventing or/and treating Alzheimer's disease. The application disclosed by the invention has the beneficial effects that the spatial learning and memory capabilities of mice are determined by adopting a Morris water maze, the contents of acetylcholin esterase (AchE), glutathion peroxidase (GSH-Px), malondialdehyde (MDA) and superoxide dismutase (SOD) in the brain tissues of the mice are measured by a colorimetric method, the morphology of cerebral neurons and the pathologic changes of the brain tissues of the mice are observed by HE (Hematoxylin Eosin) staining, and the protective action of the cerebral cortexes of the mice and the fomes officinalis polysaccharides of the sea house in all groups for nerve cells are detected by an immunohistochemical method, and from the above test results, the fomes officinalis polysaccharides has the effect of