2014
DOI: 10.1016/j.ncl.2014.04.011
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Myotonic Dystrophy

Abstract: Myotonic dystrophy (dystrophia myotonica, DM) is one of the most common lethal monogenic disorders in populations of European descent. Myotonic dystrophy type 1 (DM1) was first described over a century ago. DM1 is caused by expansion of a CTG triplet repeat in the 3' non-coding region of DMPK, the gene encoding the DM protein kinase. More recently a second form of the disease, myotonic dystrophy type 2 (DM2) was recognized, which results from repeat expansion in a different gene. The DM2 expansion involves a C… Show more

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Cited by 316 publications
(352 citation statements)
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References 107 publications
(108 reference statements)
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“…DM1 is an autosomal dominant inherited disorder caused by an unstable trinucleotide (CTG) repeat in the 3' untranslated region of a myotonin kinase gene at chromosome 19q13.3 [2]. The clinical course is clearly progressive from distal weakness to proximal weakness and involves multisystem features [3,4]. Besides the classical view as a neuromuscular disease (the majority of DM1 research focused on neuromuscular aspects), nowadays DM1 has to be also considered as a brain disorder regarding the central nervous system (CNS) and cognitive dysfunctions.…”
Section: Introductionmentioning
confidence: 99%
“…DM1 is an autosomal dominant inherited disorder caused by an unstable trinucleotide (CTG) repeat in the 3' untranslated region of a myotonin kinase gene at chromosome 19q13.3 [2]. The clinical course is clearly progressive from distal weakness to proximal weakness and involves multisystem features [3,4]. Besides the classical view as a neuromuscular disease (the majority of DM1 research focused on neuromuscular aspects), nowadays DM1 has to be also considered as a brain disorder regarding the central nervous system (CNS) and cognitive dysfunctions.…”
Section: Introductionmentioning
confidence: 99%
“…La DM1 es una patología autosómica dominante más frecuente en población caucásica y es producida por una expansión del trinucléotido CTG en la región del gen de la DMPK (Dystrophia Myotonica Protein Kinase) en el cromosoma 19q 13.3. Existe una correlación entre el número de repeticiones del trinucléotido y la severidad de la enfermedad, al igual que su debut a edades más tempranas, conocido como fenómeno de anticipación 4 . La fisiopatología no es comprendida completamente, pero la teoría más aceptada es que la expansión del trinucleótido del ARN (CUG) media un efecto dominante sobre otros genes no localizados en los loci de DM1, alterando la actividad de la proteína de unión al ARN.…”
Section: Discussionunclassified
“…La fisiopatología no es comprendida completamente, pero la teoría más aceptada es que la expansión del trinucleótido del ARN (CUG) media un efecto dominante sobre otros genes no localizados en los loci de DM1, alterando la actividad de la proteína de unión al ARN. Esto resulta en un empalme alterado y función anormal de varios genes, incluyendo el BIN1, el canal de cloro muscular, receptor de insulina y la troponina T. Se produce, además, afectación del acople excitación-contracción 4 . Como manifestaciones sistémicas, los individuos afectados por DM1 pueden presentar cataratas, deterioro cognitivo, hipoacusia neurosensorial, alopecia, alteraciones endocrinas como hipogonadismo, hipotiroidismo, hipogonadismo primario, atrofia testicular, infertilidad e insulino resistencia y anormalidades en la conducción cardíaca con arritmias y bloqueos de conducción.…”
Section: Discussionunclassified
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“…The clinical features of CMD were first described by Hans Steinert et al at the beginning of the 1900s [4]. There are two different forms of the disease, both characterized by muscle weaknesses, myotonia, and cataracts.…”
Section: Discussionmentioning
confidence: 99%