essential tremor hereditary type 1

essential tremor hereditary type 1

An autosomal dominant condition (OMIM:190300) characterised by postural tremor of the arms and often also of the head, legs, trunk, voice, jaw and facial muscles, typically aggravated by emotion, hunger, fatigue and temperature extremes, which may cause a functional disability or even incapacitation. ETM1 is the most common movement disorder.

Molecular pathology
Polymorphisms of DRD3, which encode dopamine receptor D3, cause essential tremor hereditary type 1.
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