The primary cause for Huntington, Parkinson, Alzheimer, diabetes type 2 and Creuzfeld-Jajobs diseases, is the accumulation in, and outside cells of various misfolded conformers of specific proteins, such as huntingtin, Ataxin, alfa-synuclein, tau, insulin and PRPsc, respectively [17]. This evidence concerns the gene MAPT and type 2 diabetes mellitus.