Movement disorders in mitochondrial disease: a clinicopathological correlation

Current Opinion in Neurology
Irene H Flønes, Charalampos Tzoulis

Abstract

The scope of this review is to give an updated account of movement disorders associated with mitochondrial disease, with a particular focus on recently discovered clinicopathological correlations. Movement disorders are common clinical manifestations of mitochondrial diseases, in part because of the high vulnerability of neurons controlling motor circuits to mitochondrial respiratory dysfunction and energy failure. Intriguingly, the clinicopathological correlations of movement disorders in mitochondrial disease do not always conform to established neurophysiological knowledge. In particular, nearly complete substantia nigra degeneration and nigrostriatal denervation can occur without being accompanied by any of the clinical signs traditionally associated with parkinsonism. This apparent paradox, may be because of compensation by concomitant impairment of other motor circuits involving the cerebellum and thalamus. Movement disorders commonly accompany mitochondrial disease and may show paradoxical clinical-anatomical correlations. Further research is warranted in order to elucidate the mechanisms underlying the phenotypic expression of movement disorders in mitochondrial disease. This knowledge will advance our understanding of ...Continue Reading

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Citations

Apr 11, 2020·Parkinsonism & Related Disorders·Sorina GorcencoAndreas Puschmann
Jun 25, 2021·European Journal of Neurology : the Official Journal of the European Federation of Neurological Societies·Ling WangWen Qin

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