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\section{Alzheimer's Disease}  The very first description of Alzheimer's disease \cite{Alzheimer1907,stelzmann1995}.  A report by Alzheimer explains a women showing symptoms such as ..  A postmortem reports ...  Ever since this first reporting of AD, several studies have been performed in the past century and in particular the last couple of decades.  However, the exact mechanisms of AD and its causes are poorly understood, and there is no cure till date.  The primary characteristics of the AD before the external cognitive symptoms appears are\cite{braak1995staging}:  \begin{itemize}  \item the presence of neuronal atrophy,