Progressive myoclonic epilepsy (EPM) is a syndrome complex characterized by progressive myoclonus, cognitive impairment, ataxia, and other neurologic deficits. PME is a disease that afflicts previously normal children with ever-worsening and soon-intractable myoclonus and epilepsy, usually associated with neurodegeneration, and eventual dementia and early death. PME include Lafora disease, Unverricht-Lundborg disease, the neuronal ceroid lipofuscinoses, type I sialidosis (cherry-red spot myoclonus), Dentatorubro-pallidoluysian atrophy (DRPLA), and type III Gaucher disease. Almost all the autosomal recessively inherited PMEs are lysosomal diseases, with the exception of Lafora disease in which neither the accumulating material nor the gene products are in lysosomes. PME also occurs in various forms of mitochondrial encephalomyopathies, especially in myoclonic epilepsy with ragged-red fibers (MERRF).
Pennacchio LA, Lehesjoki AE, Stone NE, Willour VL, Virtaneva K, Miao J, D'Amato E, Ramirez L, Faham M, Koskiniemi M, Warrington JA, Norio R, de la Chapelle A, Cox DR, Myers RM
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Mutations in the gene encoding cystatin B in progressive myoclonus epilepsy (EPM1)
Muona M, Berkovic SF, Dibbens LM, Oliver KL, Maljevic S, Bayly MA, Joensuu T, Canafoglia L, Franceschetti S, Michelucci R, Markkinen S, Heron SE, Hildebrand MS, Andermann E, Andermann F, Gambardella A, Tinuper P, Licchetta L, Scheffer IE, Criscuolo C, Filla A, Ferlazzo E, Ahmad J, Ahmad A, Baykan B, Said E, Topcu M, Riguzzi P, King MD, Ozkara C, Andrade DM, Engelsen BA, Crespel A, Lindenau M, Lohmann E, Saletti V, Massano J, Privitera M, Espay AJ, Kauffmann B, Duchowny M, Moller RS, Straussberg R, Afawi Z, Ben-Zeev B, Samocha KE, Daly MJ, Petrou S, Lerche H, Palotie A, Lehesjoki AE
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A recurrent de novo mutation in KCNC1 causes progressive myoclonus epilepsy.
Damiano JA, Afawi Z, Bahlo M, Mauermann M, Misk A, Arsov T, Oliver KL, Dahl HH, Shearer AE, Smith RJ, Hall NE, Mahmood K, Leventer RJ, Scheffer IE, Muona M, Lehesjoki AE, Korczyn AD, Herrmann H, Berkovic SF, Hildebrand MS
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Mutation of the nuclear lamin gene LMNB2 in progressive myoclonus epilepsy with early ataxia.
Turnbull J, Girard JM, Lohi H, Chan EM, Wang P, Tiberia E, Omer S, Ahmed M, Bennett C, Chakrabarty A, Tyagi A, Liu Y, Pencea N, Zhao X, Scherer SW, Ackerley CA, Minassian BA
Hamanaka K, Imagawa E, Koshimizu E, Miyatake S, Tohyama J, Yamagata T, Miyauchi A, Ekhilevitch N, Nakamura F, Kawashima T, Goshima Y, Mohamed AR, Ch'ng GS, Fujita A, Azuma Y, Yasuda K, Imamura S, Nakashima M, Saitsu H, Mitsuhashi S, Mizuguchi T, Takata A, Miyake N, Matsumoto N
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De Novo Truncating Variants in the Last Exon of SEMA6B Cause Progressive Myoclonic Epilepsy.
Mazzola L, Oliver KL, Labalme A, Baykan B, Muona M, Joensuu TH, Courage C, Chatron N, Borsani G, Alix E, Ramond F, Touraine R, Bahlo M, Bebek N, Berkovic SF, Lehesjoki AE, Lesca G
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Progressive Myoclonus Epilepsy Caused by a Homozygous Splicing Variant of SLC7A6OS.
