MAPT and early-onset autosomal dominant Alzheimer disease: Toxic proteins such as \documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$\beta $$\end{document}β amyloid and Tau play in fact a crucial role in the development of Alzheimer’s disease and, separately, have been targets of medical treatments.