from Section II - A Metabolism-Based Approach to Movement Disorders and Inherited Metabolic Disorders
Published online by Cambridge University Press: 24 September 2020
The syndromes of neurodegeneration with brain iron accumulation (NBIA) are a group of disorders defined by progressive hypo- and/or hyperkinetic movement disorders and excessive iron deposition in the brain [1]. Iron predominantly accumulates in (and around) the basal ganglia, mainly the globus pallidus, and can be detected as hypointensity on T2-weighted images due to shortening effects on relaxation time. Brain pathology demonstrates degeneration of neurons and astrocytes. Eosinophilic, roundish swellings containing degenerate organelles (i.e. spheroid bodies) are also common in many subtypes of NBIA. Several genes associated with NBIA disorders have been identified (including PANK2, PLA2G6, WDR45, C19orf12, FA2H, ATP13A2, COASY, FTL1, CP, and DCAF17).
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