To investigate the potential role of dystonin in human neuropathies, we have cloned the neural-specific 5' exons of the human DT gene that together with the previously cloned BPAG1 sequences comprise human dystonin.
Duplication of the gene for the peripheral myelin protein 22 (PMP22) is the most common cause for Charcot-Marie-Tooth neuropathy type 1a (CMT1A) neuropathy.
Hereditary neuropathy with liability to pressure palsies (HNPP) is an autosomal dominant neuropathy, most often associated with a deletion of the 17p11.2 region, which is duplicated in 70% of patients with Charcot-Marie-Tooth type 1 (CMT1A).
In addition, a reduction in the gene dosage of PMP22 causes hereditary neuropathy with liability to pressure palsies (HNPP), while particular point mutations in PMP22 and P0 cause the severe Dejerine-Sottas (DS) neuropathy.
Therefore, neither the sporadic nor the familial cases of spinal CMT are associated with a SMN gene deletion, nor are the familial cases linked to the 5q13 region, indicating that this neuropathy is genetically different from SMA.
Therefore, neither the sporadic nor the familial cases of spinal CMT are associated with a SMN gene deletion, nor are the familial cases linked to the 5q13 region, indicating that this neuropathy is genetically different from SMA.
Therefore, neither the sporadic nor the familial cases of spinal CMT are associated with a SMN gene deletion, nor are the familial cases linked to the 5q13 region, indicating that this neuropathy is genetically different from SMA.
Therefore, neither the sporadic nor the familial cases of spinal CMT are associated with a SMN gene deletion, nor are the familial cases linked to the 5q13 region, indicating that this neuropathy is genetically different from SMA.
Therefore, neither the sporadic nor the familial cases of spinal CMT are associated with a SMN gene deletion, nor are the familial cases linked to the 5q13 region, indicating that this neuropathy is genetically different from SMA.
IDDM patients bearing the ATP1 A1 variant detected by Bgl II RFLP are much more frequently affected by neuropathy (relative risk 6.5, with 95% CI 3.3-13).
Motor and sensory neuropathies with the clinical features of HMSN III (Dejerine-Sottas syndrome, DSS) are etiologically related to heterozygous mutations in either peripheral myelin protein-22 (PMP22) or myelin protein zero (MPZ).
In Trembler mouse a Gly150Asp amino acid exchange in the peripheral myelin protein 22kDa (PMP22) gene was identified as causative reason for this hypertrophic neuropathy.
The fate of Schwann cells in Charcot-Marie-Tooth (CMT) neuropathies was addressed in this study of nerve biopsies from patients with proven PMP22 duplications and deletions.