In addition to Alzheimer’s disease (AD), aggregation of tau proteins is also reported in the brains of patients with frontotemporal lobar degeneration (FTLD), Pick’s disease, progressive supranuclear palsy, corticobasal degeneration, etc. and these neurodegenerative diseases are known as tauopathy [1,2]. This evidence concerns the gene MAPT and frontotemporal dementia.