Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Sadnicka, A; Teo, JT; Kojovic, M; Pareés, I; Saifee, TA; Kassavetis, P; Schwingenschuh, P; Katschnig-Winter, P; Stamelou, M; Mencacci, NE; Rothwell, JC; Edwards, MJ; Bhatia, KP.
All in the blink of an eye: new insight into cerebellar and brainstem function in DYT1 and DYT6 dystonia.
Eur J Neurol. 2015; 22(5):762-767
Doi: 10.1111/ene.12521
Web of Science
PubMed
FullText
FullText_MUG
- Co-Autor*innen der Med Uni Graz
- Katschnig-Winter Petra
- Schwingenschuh Petra
- Altmetrics:
- Dimensions Citations:
- Plum Analytics:
- Scite (citation analytics):
- Abstract:
- Traditionally dystonia has been considered a disorder of basal ganglia dysfunction. However, recent research has advocated a more complex neuroanatomical network. In particular, there is increasing interest in the pathophysiological role of the cerebellum. Patients with cervical and focal hand dystonia have impaired cerebellar associative learning using the paradigm eyeblink conditioning. This is perhaps the most direct evidence to date that the cerebellum is implicated in patients. Eleven patients with DYT1 dystonia and five patients with DYT6 dystonia were examined and rates of eyeblink conditioning were compared with age-matched controls. A marker of brainstem excitability, the blink reflex recovery, was also studied in the same groups. Patients with DYT1 and DYT6 dystonia have a normal ability to acquire conditioned responses. Blink reflex recovery was enhanced in DYT1 but this effect was not seen in DYT6. If the cerebellum is an important driver in DYT1 and DYT6 dystonia our data suggest that there is specific cerebellar dysfunction such that the circuits essential for conditioning function normally. Our data are contrary to observations in focal dystonia and suggest that the cerebellum may have a distinct role in different subsets of dystonia. Evidence of enhanced blink reflex recovery in all patients with dystonia was not found and recent studies calling for the blink recovery reflex to be used as a diagnostic test for dystonic tremor may require further corroboration. © 2014 The Author(s) European Journal of Neurology © 2014 EAN.
- Find related publications in this database (using NLM MeSH Indexing)
- Adult -
- Aged -
- Aged, 80 and over -
- Blinking - physiology
- Brain Stem - physiopathology
- Cerebellar Diseases - physiopathology
- Conditioning (Psychology) - physiology
- Dystonia Musculorum Deformans - physiopathology
- Electric Stimulation -
- Electromyography -
- Female -
- Humans -
- Male -
- Middle Aged -
- Young Adult -
- Find related publications in this database (Keywords)
- cerebellum
- dystonia
- DYT1
- DYT6
- neurophysiology