Alzheimer disease (AD) is a neurodegenerative disorder of the central nervous system. It is recognized as a major public health problem having a severe impact on human beings. A major pathological characters is that senile plaques (SPs) occur in the brains of patients. SPs are neurotoxic and their extensive depositions cause neurodegeneration. The studies shows that Amyloid β -peptides(A β s)aggregate and accumulate,moreover,colocalize with numerous other associated protein and nonprotein components to form...