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KMID : 0614720070500050457
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Journal of Korean Medical Association
2007 Volume.50 No. 5 p.457 ~ p.463
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CurrentIssuesof theCharcot-Marie-ToothDisease
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Choi Byung-Ok
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Abstract
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Hereditary motor and sensory neuropathy (HMSN), or Charcot-Marie-Tooth (CMT) disease, was described by Charcot and Marie in France and, independently, by Tooth in England in 1886. CMT is the most common form of inherited motor and sensory neuropathy, and is a genetically heterogeneous group of disorders in the peripheral nervous system. Traditionally, CMT has been subclassified into autosomal dominant inherited demyelinating (CMT1) and axonal (CMT2) neuropathies, X-linked neuropathy (CMTX), and autosomal recessive inherited neuropathy (CMT4). There are several related peripheral neuropathies, such as Dejerine-Sottas neuropathy (DSN), congenital hypomyelination neuropathy (CHN), hereditary neuropathy with liability to pressure palsies (HNPP), and giant axonal neuropathy (GAN). A large amount of new information on the genetic causes of CMT has become available, and mutations causing the disease have been associated with more than 20 different genes and 40 chromosomal loci. Advances in our understanding of the molecular basis of CMT have revealed an enormous diversity in genetic mechanisms, despite the clinical entity that is relatively uniform at presentation. Recent studies have shown therapeutic effects of certain chemicals in animal models of CMT1A, which suggests potential therapies for the most common form of CMT, CMT1A. This review focuses on the subgroups of inherited motor and sensory neuropathy on which there has been an explosion of new molecular genetic information over the past decade.
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KEYWORD
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Hereditarymotorandsensoryneuropathy, Charcot-Marie-Tooth disease,
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