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At least 685 records · Page 38Linked to original sources
PubMed2001

Mapping of Charcot-Marie-Tooth disease type 1C to chromosome 16p identifies a novel locus for demyelinating neuropathies.

Charcot-Marie-Tooth (CMT) neuropathy represents a genetically heterogeneous group of diseases affecting the peripheral nervous system. We report genetic mapping of the disease to chromosome 16p13.1-p12.3, in two families with autosomal dominant CMT type 1C (CMT1C). Affected individuals in these families manifest characteristic CMT symptoms, including high-arched feet, distal muscle weakness and atrophy, depressed deep-tendon reflexes, sensory impairment, slow nerve conduction velocities, and nerve demyelination. A maximal combined LOD score of 14.25 was obtained with marker D16S500. The combined haplotype analysis in these two families localizes the CMT1C gene within a 9-cM interval flanked by markers D16S519 and D16S764. The disease-linked haplotypes in these two pedigrees are not conserved, suggesting that the gene mutation underlying the disease in each family arose independently. The epithelial membrane protein 2 gene (EMP2), which maps to chromosome 16p13.2, was evaluated as a candidate gene for CMT1C.

Charcot-Marie-Tooth Disease↗
PubMed1992

Charcot-Marie-Tooth disease: evidence of a duplication at D17S122 locus.

The presence of 17p11.2 duplication in CMT 1 Italian families was studied. Fourteen families were tested with pVAW409R3a probe which detects the duplication at D17S122 locus. The duplication was found in all affected individuals, but not in the unaffected relatives and in the unrelated spouses. Also two sporadic cases were investigated: the duplication was present in both patients confirming this mutation as cause of the disease.

Charcot-Marie-Tooth Disease↗