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Charcot–Marie–Tooth disease; Other names: Charcot–Marie–Tooth neuropathy, peroneal muscular atrophy, Dejerine-Sottas syndrome: The foot of a person with Charcot–Marie–Tooth disease: The lack of muscle, a high arch, and claw toes are signs of this genetic disease.
Charcot–Marie–Tooth disease was first described in 1886 by Jean-Martin Charcot, Pierre Marie, and independently Howard Henry Tooth. [2] In the 1950s, further classification occurred and separated patients into two distinct groups. Group one was characterized by slow nerve conduction velocities and demyelinating neuropathy.
PMP22 point mutations, such as the frameshift mutation Gly94fsX222 (c.281_282insG), can cause clinical overlap between PNPP and Charcot–Marie–Tooth disease type 1A. Missense, nonsense, and splice site mutations have been described. [11] PMP22 encodes a 22-kD protein that comprises 2 to 5% of peripheral nervous system myelin. [12]
Charcot-Marie-Tooth disease is an inherited, genetic condition. It occurs when there are mutations in the genes that affect the nerves in your feet, legs, hands and arms.
Charcot-Marie-Tooth disease is a genetic neurological condition that causes damage to the peripheral nerves that connect the spine and brain to the arms and legs, according to the Mayo Clinic ...
It is allelic (i.e., caused by mutations on the same gene) with Charcot–Marie–Tooth disease and with Silver’s Syndrome, a disorder also characterized by small muscle atrophy in the hands. [1] [7] Another rare form of dHMN V is associated with a splicing mutation in REEP-1, a gene often associated with hereditary spastic neuroplegia. [8]
Dejerine–Sottas disease, also known as, Dejerine–Sottas syndrome, [3] hereditary motor and sensory polyneuropathy type III, and Charcot–Marie–Tooth disease type 3, is a hereditary neurological disorder characterized by damage to the peripheral nerves, demyelination, and resulting progressive muscle wasting and somatosensory loss.
X-linked Charcot–Marie–Tooth disease type 5: This subtype is characterized by infancy/childhood-onset progressive distal limb muscle weakness and atrophy that affects both upper and lower extremities (although it is important noting that it appears and is more noticeable on the lower extremities), foot drop, gait abnormalities, bilateral ...