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Review
. 2013 Sep 6:57 Suppl 1:S47-52.

[Congenital muscular dystrophies in children]

[Article in Spanish]
Cristina Scavone-Mauro  1 , Graciela Barros
Affiliations
  • PMID: 23897156
Review

[Congenital muscular dystrophies in children]

[Article in Spanish]
Cristina Scavone-Mauro et al. Rev Neurol. .

Abstract
in English, Spanish

From the clinical and genetic point of view, congenital muscular dystrophies (CMD) are a heterogenic group of diseases within neuromuscular pathologies. The best known forms are: merosin deficiency CMD, collagen VI deficiency CMD, LMNA-related CMD, selenoprotein-related CMD (SEPN1) and alpha-dystroglycan-related CMD. They present with a broad spectrum of clinical phenotypes. Most of them are transmitted by recessive autosomal inheritance. The initial manifestations very often begin in infancy or in the neonatal period. There are clinical suspicions of the existence of hypotonia and paresis, and they are characterised by a dystrophic pattern in the muscular biopsy (muscle replaced by fibroadipose tissue, with necrosis and cell regeneration). Advances in the understanding of the molecular pathogenesis of CMD have made it possible to make further progress in the classification of the different subtypes. The aim of this review is to comment on the advances made in recent years as regards the classification of CMD in terms of genetics, the proteins involved and their clinical presentation.

Title: Distrofias musculares congenitas en el niño.

Las distrofias musculares congenitas (DMC) representan desde el punto de vista clinico y genetico un grupo heterogeneo de enfermedades dentro de la patologia neuromuscular. Las formas mas conocidas son: DMC por deficit de merosina, DMC por deficit de colageno VI, DMC relacionada con LMNA, DMC relacionada con selenoproteina (SEPN1) y las DMC vinculadas a los alfa-distroglicanos. Se presentan con un amplio espectro de fenotipos clinicos. En su mayoria son de herencia autosomica recesiva. Con mucha frecuencia las manifestaciones iniciales comienzan en la infancia o en el periodo neonatal. Se sospechan clinicamente por la existencia de hipotonia y paresia y se caracterizan por la existencia de un patron distrofico en la biopsia muscular (sustitucion de musculo por tejido fibroadiposo, con necrosis y regeneracion celular). Avances en la comprension de la patogenesis molecular de las DMC han permitido profundizar en la clasificacion de los diferentes subtipos. El objetivo de esta revision es comentar los avances de los ultimos años en cuanto a la clasificacion de las DMC en relacion a la genetica, las proteinas involucradas y su presentacion clinica.

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