Friedreich’s ataxia - A Comprehensive Look

Weekly Neurology Deep Dive - A review of recent impactful publications in the field of Neurology · Oct 5, 2025 · 30m

Friedreich’s ataxia is a rare, progressive, autosomal recessive neurodegenerative, multisystem disorder caused by a homozygous GAA repeat expansion in the frataxin gene, resulting in a deficiency of the mitochondrial protein frataxin. This core pathology impairs iron–sulfur cluster biosynthesis and mitochondrial adenosine triphosphate production, leading to mitochondrial dysfunction and increased oxidative stress. While characterized by ataxia, Friedreich’s ataxia is multisystemic, including cardiomyopathy, which represents the major determinant of reduced survival. Omaveloxolone, approved by…