Huntington’s disease (HD), an autosomal dominant monogenic neurodegenerative disease, was first described in 1872 by George Huntington, who reported an inherited choreiform disorder [1] resulting from the expansion of cytosine, adenine, and guanine (CAG) tract in the IT15 gene (Huntingtin gene, HTT), located in the region 4p16.3. This evidence concerns the gene HTT and neurodegenerative disease.