Pathology
DRPLA is characterized by marked, generalized brain atrophy and the accumulation of atrophin-1 with expanded glutamine stretches. Mutant atrophin-1 proteins have been found in neuronal intranuclear inclusions (NII) and diffusely accumulated in the neuronal nuclei. While the role of NIIs (pathologic or protective) is unclear, the diffuse accumulation of mutant protein is regarded as toxic.
Read more about this topic: Dentatorubral-pallidoluysian Atrophy
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