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Essential tremor
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DOI：10.1038/s41572-021-00314-w.png)
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摘要
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This Primer summarizes the epidemiology, diagnosis, treatment and pathophysiology of essential tremor, a movement disorder that is typically characterized by upper limb action tremor in the absence of other neurological signs. Essential tremor (ET) is one of the most common movement disorders, with a reported >60 million affected individuals worldwide. The definition and underlying pathophysiology of ET are contentious. Patients present primarily with motor features such as postural and action tremors, but may also have other non-motor features, including cognitive impairment and neuropsychiatric symptoms. Genetics account for most of the ET risk but environmental factors may also be involved. However, the variable penetrance and challenges in validating data make gene-environment analysis difficult. Structural changes in cerebellar Purkinje cells and neighbouring neuronal populations have been observed in post-mortem studies, and other studies have found GABAergic dysfunction and dysregulation of the cerebellar-thalamic-cortical circuitry. Commonly prescribed medications include propranolol and primidone. Deep brain stimulation and ultrasound thalamotomy are surgical options in patients with medically intractable ET. Further research in post-mortem studies, and animal and cell-based models may help identify new pathophysiological clues and therapeutic targets and, together with advances in omics and machine learning, may facilitate the development of precision medicine for patients with ET.
Keyword:
DEEP BRAIN-STIMULATION
QUALITY-OF-LIFE
FAMILIAL ESSENTIAL TREMOR
FOCUSED ULTRASOUND THALAMOTOMY
ONSET ESSENTIAL TREMOR
3 ELDERLY POPULATIONS
TO-DOOR SURVEY
MOVEMENT-DISORDER
PARKINSONS-DISEASE
STANDARDS SUBCOMMITTEE
期刊
N
IF:
60.6
论文数:
661
被引数:
3.9W
机构
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