Movement disorders in genetically confirmed mitochondrial disease and the putative role of the cerebellum.

Schreglmann, Sebastian R; Riederer, Franz; Galovic, Marian; Ganos, Christos; Kägi, Georg; Waldvogel, Daniel; Jaunmuktane, Zane; Schaller, André; Hidding, Ute; Krasemann, Ernst; Michels, Lars; Baumann, Christian R; Bhatia, Kailash; Jung, Hans H (2018). Movement disorders in genetically confirmed mitochondrial disease and the putative role of the cerebellum. Movement disorders, 33(1), pp. 146-155. Wiley-Blackwell 10.1002/mds.27174

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BACKGROUND Mitochondrial disease can present as a movement disorder. Data on this entity's epidemiology, genetics, and underlying pathophysiology, however, is scarce. OBJECTIVE The objective of this study was to describe the clinical, genetic, and volumetric imaging data from patients with mitochondrial disease who presented with movement disorders. METHODS In this retrospective analysis of all genetically confirmed mitochondrial disease cases from three centers (n = 50), the prevalence and clinical presentation of video-documented movement disorders was assessed. Voxel-based morphometry from high-resolution MRI was employed to compare cerebral and cerebellar gray matter volume between mitochondrial disease patients with and without movement disorders and healthy controls. RESULTS Of the 50 (30%) patients with genetically confirmed mitochondrial disease, 15 presented with hypokinesia (parkinsonism 3/15), hyperkinesia (dystonia 5/15, myoclonus 3/15, chorea 2/15), and ataxia (3/15). In 3 patients, mitochondrial disease presented as adult-onset isolated dystonia. In comparison to healthy controls and mitochondrial disease patients without movement disorders, patients with hypo- and hyperkinetic movement disorders had significantly more cerebellar atrophy and an atrophy pattern predominantly involving cerebellar lobules VI and VII. CONCLUSION This series provides clinical, genetic, volumetric imaging, and histologic data that indicate major involvement of the cerebellum in mitochondrial disease when it presents with hyper- and hypokinetic movement disorders. As a working hypothesis addressing the particular vulnerability of the cerebellum to energy deficiency, this adds substantially to the pathophysiological understanding of movement disorders in mitochondrial disease. Furthermore, it provides evidence that mitochondrial disease can present as adult-onset isolated dystonia. © 2017 International Parkinson and Movement Disorder Society.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > Unit Childrens Hospital > Forschungsgruppe Humangenetik
04 Faculty of Medicine > Department of Gynaecology, Paediatrics and Endocrinology (DFKE) > Clinic of Paediatric Medicine

UniBE Contributor:

Schaller, André

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0885-3185

Publisher:

Wiley-Blackwell

Language:

English

Submitter:

André Schaller

Date Deposited:

09 Apr 2018 14:50

Last Modified:

23 Oct 2019 00:40

Publisher DOI:

10.1002/mds.27174

PubMed ID:

28901595

Uncontrolled Keywords:

Mitochondrial disorders basal ganglia cerebellum dystonia volumetric MRI

BORIS DOI:

10.7892/boris.109373

URI:

https://boris.unibe.ch/id/eprint/109373

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