Essential tremor (ET) is a neurological disorder that is considered to be one of the most common adult-onset movement disorders. ET is typically characterized by rhythmic, involuntary shaking of one or more parts of the body, and occurs exclusively during voluntary movements (action tremor) or in positions against gravity (postural tremor). The phenotypic severity of ET is variable, as evidenced by the existence of both highly disabling and milder forms of the disease. There are three subtypes of ET, namely hereditary, sporadic, and senile, and most studies indicate that ET is a hereditary disorder in more than half of affected individuals (and presumably has autosomal-dominant inheritance). The diagnostic approach includes obtaining a history, physical examination, and laboratory tests. At present, there are no validated serologic, radiologic, or pathological markers.
Category
Nervous system disease
Brite
Human diseases in ICD-11 classification [BR:br08403]
08 Diseases of the nervous system
Movement disorders
8A04 Disorders associated with tremor
H01577 Essential tremor
Pathway-based classification of diseases [BR:br08402]
Cellular process
nt06544 Neuroactive ligand signaling
H01577 Essential tremor
Merner ND, Girard SL, Catoire H, Bourassa CV, Belzil VV, Riviere JB, Hince P, Levert A, Dionne-Laporte A, Spiegelman D, Noreau A, Diab S, Szuto A, Fournier H, Raelson J, Belouchi M, Panisset M, Cossette P, Dupre N, Bernard G, Chouinard S, Dion PA, Rouleau GA
Title
Exome sequencing identifies FUS mutations as a cause of essential tremor.
Hor H, Francescatto L, Bartesaghi L, Ortega-Cubero S, Kousi M, Lorenzo-Betancor O, Jimenez-Jimenez FJ, Gironell A, Clarimon J, Drechsel O, Agundez JA, Kenzelmann Broz D, Chiquet-Ehrismann R, Lleo A, Coria F, Garcia-Martin E, Alonso-Navarro H, Marti MJ, Kulisevsky J, Hor CN, Ossowski S, Chrast R, Katsanis N, Pastor P, Estivill X
Title
Missense mutations in TENM4, a regulator of axon guidance and central myelination, cause essential tremor.
