Distal myopathies (MPD) are a group of heterogeneous inherited primary muscle disorders classified into one broad category due to the presentation of weakness involving the distal skeletal muscles. Clinical presentation is characterized by progressive muscular weakness and atrophy beginning in the hands, forearm, lower legs or feet. Currently almost 20 different entities of distal muscular dystrophies have been genetically determined. Half of the genes have been associated with distal phenotypes only, whereas the other genes can manifest also with other than distal phenotypes. Most of the genes code for structural and functional components of the sarcomere. The genes responsible for the pathologically defined category of myofibrillar myopathy are frequently display a distal phenotype.
Liu J, Aoki M, Illa I, Wu C, Fardeau M, Angelini C, Serrano C, Urtizberea JA, Hentati F, Hamida MB, Bohlega S, Culper EJ, Amato AA, Bossie K, Oeltjen J, Bejaoui K, McKenna-Yasek D, Hosler BA, Schurr E, Arahata K, de Jong PJ, Brown RH Jr
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Dysferlin, a novel skeletal muscle gene, is mutated in Miyoshi myopathy and limb girdle muscular dystrophy.
Jaiswal JK, Marlow G, Summerill G, Mahjneh I, Mueller S, Hill M, Miyake K, Haase H, Anderson LV, Richard I, Kiuru-Enari S, McNeil PL, Simon SM, Bashir R
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Patients with a non-dysferlin Miyoshi myopathy have a novel membrane repair defect.
Eisenberg I, Avidan N, Potikha T, Hochner H, Chen M, Olender T, Barash M, Shemesh M, Sadeh M, Grabov-Nardini G, Shmilevich I, Friedmann A, Karpati G, Bradley WG, Baumbach L, Lancet D, Asher EB, Beckmann JS, Argov Z, Mitrani-Rosenbaum S
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The UDP-N-acetylglucosamine 2-epimerase/N-acetylmannosamine kinase gene is mutated in recessive hereditary inclusion body myopathy.
Duff RM, Tay V, Hackman P, Ravenscroft G, McLean C, Kennedy P, Steinbach A, Schoffler W, van der Ven PFM, Furst DO, Song J, Djinovic-Carugo K, Penttila S, Raheem O, Reardon K, Malandrini A, Gambelli S, Villanova M, Nowak KJ, Williams DR, Landers JE, Brown RH Jr, Udd B, Laing NG
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Mutations in the N-terminal actin-binding domain of filamin C cause a distal myopathy.
Park HJ, Hong YB, Choi YC, Lee J, Kim EJ, Lee JS, Mo WM, Ki SM, Kim HI, Kim HJ, Hyun YS, Hong HD, Nam K, Jung SC, Kim SB, Kim SH, Kim DH, Oh KW, Kim SH, Yoo JH, Lee JE, Chung KW, Choi BO
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ADSSL1 mutation relevant to autosomal recessive adolescent onset distal myopathy.
Johari M, Sarparanta J, Vihola A, Jonson PH, Savarese M, Jokela M, Torella A, Piluso G, Said E, Vella N, Cauchi M, Magot A, Magri F, Mauri E, Kornblum C, Reimann J, Stojkovic T, Romero NB, Luque H, Huovinen S, Lahermo P, Donner K, Comi GP, Nigro V, Hackman P, Udd B
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Missense mutations in small muscle protein X-linked (SMPX) cause distal myopathy with protein inclusions.
