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Olfaction as a Marker for Dystonia: Background, Current State and Directions
Thorsten Herr1, Julie Gamain1, Robert Fleischmann1
1Department of Neurology, University Medicine Greifswald, Fleischmannstraße 8, 17475 Greifswald, Germany.
Brain Sciences
|October 17, 2020
Summary
Dystonia, a movement disorder, may involve diminished olfaction. Understanding this non-motor symptom could reveal insights into dystonia pathophysiology and lead to new treatments.
Area of Science:
- Neurology
- Neuroscience
- Movement Disorders
Background:
- Dystonia is a complex hyperkinetic movement disorder with motor and non-motor symptoms.
- Its pathophysiology remains incompletely understood, hindering effective treatment development.
- Diminished olfaction is a recently identified potential non-motor manifestation.
Purpose of the Study:
- To provide background on dystonia and its pathophysiology.
- To review key brain structures involved in dystonia and chemical senses.
- To explore the link between olfactory deficits and dystonia.
Main Methods:
- Literature review of dystonia pathophysiology.
- Analysis of basal ganglia, cerebellum, and sensorimotor cortex involvement.
- Review of chemical senses and their relation to dystonia.
Main Results:
- Dystonia involves motor and potential non-motor symptoms like altered olfaction.
- Key brain structures implicated in dystonia also play roles in olfaction.
- Altered chemical senses, particularly olfaction, are observed in dystonia.
Conclusions:
- Understanding olfactory dysfunction in dystonia may illuminate pathophysiology.
- Olfactory deficits could serve as a potential biomarker for dystonia.
- Further research into olfactory dysfunction may yield novel therapeutic strategies for dystonia.
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