Overview of Huntington’s Disease (HD)
Introduction Huntington’s Disease (HD) is a devastating, autosomal dominant neurodegenerative disorder caused by a pathogenic CAG trinucleotide repeat expansion in the HTT gene on chromosome 4p16.3. This mutation results in an expanded polyglutamine tract in the huntingtin protein, leading to progressive neuronal dysfunction and cell death, primarily affecting the striatum and cortex. HD is characterized…