The congenital myopathies are a group of genetic muscle disorders characterised clinically by hypotonia and weakness, usually from birth, and a static or slowly progressive clinical course. Congenital myopathies are mainly defined by the predominant histopathological features which include nemaline rods, central cores, multiple minicores, central nuclei, and selective hypotrophy of type 1 fibres. Based on these features, individual congenital myopathies such as nemaline myopathy, central core disease, multi-minicore disease, centronuclear myopathy, and congenital fiber type disproportion were reported. Over the past decade there have been major advances in defining the genetic basis of the majority of congenital myopathy subtypes. However the relationship between each congenital myopathy, defined on histological grounds, and the genetic cause is complex. Many of the congenital myopathies are due to mutations in more than one gene, and mutations in the same gene can cause different muscle pathologies.
Ferreiro A, Monnier N, Romero NB, Leroy JP, Bonnemann C, Haenggeli CA, Straub V, Voss WD, Nivoche Y, Jungbluth H, Lemainque A, Voit T, Lunardi J, Fardeau M, Guicheney P
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A recessive form of central core disease, transiently presenting as multi-minicore disease, is associated with a homozygous mutation in the ryanodine receptor type 1 gene.
Moghadaszadeh B, Petit N, Jaillard C, Brockington M, Quijano Roy S, Merlini L, Romero N, Estournet B, Desguerre I, Chaigne D, Muntoni F, Topaloglu H, Guicheney P
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Mutations in SEPN1 cause congenital muscular dystrophy with spinal rigidity and restrictive respiratory syndrome.
Carmignac V, Salih MA, Quijano-Roy S, Marchand S, Al Rayess MM, Mukhtar MM, Urtizberea JA, Labeit S, Guicheney P, Leturcq F, Gautel M, Fardeau M, Campbell KP, Richard I, Estournet B, Ferreiro A
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C-terminal titin deletions cause a novel early-onset myopathy with fatal cardiomyopathy.
Logan CV, Lucke B, Pottinger C, Abdelhamed ZA, Parry DA, Szymanska K, Diggle CP, van Riesen A, Morgan JE, Markham G, Ellis I, Manzur AY, Markham AF, Shires M, Helliwell T, Scoto M, Hubner C, Bonthron DT, Taylor GR, Sheridan E, Muntoni F, Carr IM, Schuelke M, Johnson CA
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Mutations in MEGF10, a regulator of satellite cell myogenesis, cause early onset myopathy, areflexia, respiratory distress and dysphagia (EMARDD).
Ravenscroft G, Zaharieva IT, Bortolotti CA, Lambrughi M, Pignataro M, Borsari M, Sewry CA, Phadke R, Haliloglu G, Ong R, Goullee H, Whyte T, Consortium UK, Manzur A, Talim B, Kaya U, Osborn DPS, Forrest ARR, Laing NG, Muntoni F
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Bi-allelic mutations in MYL1 cause a severe congenital myopathy.
van de Locht M, Donkervoort S, de Winter JM, Conijn S, Begthel L, Kusters B, Mohassel P, Hu Y, Medne L, Quinn C, Moore SA, Foley AR, Seo G, Hwee DT, Malik FI, Irving T, Ma W, Granzier HL, Kamsteeg EJ, Immadisetty K, Kekenes-Huskey P, Pinto JR, Voermans N, Bonnemann CG, Ottenheijm CA
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Pathogenic variants in TNNC2 cause congenital myopathy due to an impaired force response to calcium.
Shashi V, Geist J, Lee Y, Yoo Y, Shin U, Schoch K, Sullivan J, Stong N, Smith E, Jasien J, Kranz P, Lee Y, Shin YB, Wright NT, Choi M, Kontrogianni-Konstantopoulos A
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Heterozygous variants in MYBPC1 are associated with an expanded neuromuscular phenotype beyond arthrogryposis.
Zaharieva IT, Thor MG, Oates EC, van Karnebeek C, Hendson G, Blom E, Witting N, Rasmussen M, Gabbett MT, Ravenscroft G, Sframeli M, Suetterlin K, Sarkozy A, D'Argenzio L, Hartley L, Matthews E, Pitt M, Vissing J, Ballegaard M, Krarup C, Slordahl A, Halvorsen H, Ye XC, Zhang LH, Lokken N, Werlauff U, Abdelsayed M, Davis MR, Feng L, Phadke R, Sewry CA, Morgan JE, Laing NG, Vallance H, Ruben P, Hanna MG, Lewis S, Kamsteeg EJ, Mannikko R, Muntoni F
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Loss-of-function mutations in SCN4A cause severe foetal hypokinesia or 'classical' congenital myopathy.
Miyatake S, Mitsuhashi S, Hayashi YK, Purevjav E, Nishikawa A, Koshimizu E, Suzuki M, Yatabe K, Tanaka Y, Ogata K, Kuru S, Shiina M, Tsurusaki Y, Nakashima M, Mizuguchi T, Miyake N, Saitsu H, Ogata K, Kawai M, Towbin J, Nonaka I, Nishino I, Matsumoto N
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Biallelic Mutations in MYPN, Encoding Myopalladin, Are Associated with Childhood-Onset, Slowly Progressive Nemaline Myopathy.
