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Mutilating neuropathic ulcerations in a chromosome 3q13-q22 linked Charcot-Marie-Tooth disease type 2B family.
J Neurol Neurosurg Psychiatry. 1997 Jun; 62(6):570-3.JN

Abstract

BACKGROUND

Charcot-Marie-Tooth disease type 2 (CMT2) or hereditary motor and sensory neuropathy type II (HMSN II) is an inherited axonal neuropathy of the peripheral nervous system. Three autosomal dominant CMT2 loci have been located on chromosomes 1p35-p36 (CMT2A), 3q13-q22 (CMT2B), and 7p14 (CMT2D) indicating that CMT2 is a genetically heterogeneous disorder.

METHODS

A CMT2 family was examined for linkage to the CMT2A, CMT2B, and CMT2D loci using short tandem repeat polymorphisms.

RESULTS

Suggestive evidence for linkage to 3q13-q22 was found. Recombinations occurred with markers D3S1769 and D3S1267 indicating that the CMT2B locus is located distal to D3S1267 and resides in an interval of 25 cM. Some patients in this family have pronounced sensory disturbances leading to poorly healing ulcerations.

CONCLUSIONS

These unusual sensory signs for CMT were also noted in the only other CMT2B family reported so far, suggesting a distinct clinical phenotype for CMT2B. Exclusion of the locus for hereditary sensory neuropathy type I (HSN I) on chromosome 9q22 indicates that HSN I with mild motor symptoms and CMT2 with prominent sensory abnormalities are not allelic.

Authors+Show Affiliations

Flanders Interuniversity Institute for Biotechnology (VIB), Born Bunge Foundation (BBS), University of Antwerp (UIA), Antwerpen, Belgium.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Case Reports
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

9219740

Citation

De Jonghe, P, et al. "Mutilating Neuropathic Ulcerations in a Chromosome 3q13-q22 Linked Charcot-Marie-Tooth Disease Type 2B Family." Journal of Neurology, Neurosurgery, and Psychiatry, vol. 62, no. 6, 1997, pp. 570-3.
De Jonghe P, Timmerman V, FitzPatrick D, et al. Mutilating neuropathic ulcerations in a chromosome 3q13-q22 linked Charcot-Marie-Tooth disease type 2B family. J Neurol Neurosurg Psychiatry. 1997;62(6):570-3.
De Jonghe, P., Timmerman, V., FitzPatrick, D., Spoelders, P., Martin, J. J., & Van Broeckhoven, C. (1997). Mutilating neuropathic ulcerations in a chromosome 3q13-q22 linked Charcot-Marie-Tooth disease type 2B family. Journal of Neurology, Neurosurgery, and Psychiatry, 62(6), 570-3.
De Jonghe P, et al. Mutilating Neuropathic Ulcerations in a Chromosome 3q13-q22 Linked Charcot-Marie-Tooth Disease Type 2B Family. J Neurol Neurosurg Psychiatry. 1997;62(6):570-3. PubMed PMID: 9219740.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Mutilating neuropathic ulcerations in a chromosome 3q13-q22 linked Charcot-Marie-Tooth disease type 2B family. AU - De Jonghe,P, AU - Timmerman,V, AU - FitzPatrick,D, AU - Spoelders,P, AU - Martin,J J, AU - Van Broeckhoven,C, PY - 1997/6/1/pubmed PY - 1997/6/1/medline PY - 1997/6/1/entrez SP - 570 EP - 3 JF - Journal of neurology, neurosurgery, and psychiatry JO - J Neurol Neurosurg Psychiatry VL - 62 IS - 6 N2 - BACKGROUND: Charcot-Marie-Tooth disease type 2 (CMT2) or hereditary motor and sensory neuropathy type II (HMSN II) is an inherited axonal neuropathy of the peripheral nervous system. Three autosomal dominant CMT2 loci have been located on chromosomes 1p35-p36 (CMT2A), 3q13-q22 (CMT2B), and 7p14 (CMT2D) indicating that CMT2 is a genetically heterogeneous disorder. METHODS: A CMT2 family was examined for linkage to the CMT2A, CMT2B, and CMT2D loci using short tandem repeat polymorphisms. RESULTS: Suggestive evidence for linkage to 3q13-q22 was found. Recombinations occurred with markers D3S1769 and D3S1267 indicating that the CMT2B locus is located distal to D3S1267 and resides in an interval of 25 cM. Some patients in this family have pronounced sensory disturbances leading to poorly healing ulcerations. CONCLUSIONS: These unusual sensory signs for CMT were also noted in the only other CMT2B family reported so far, suggesting a distinct clinical phenotype for CMT2B. Exclusion of the locus for hereditary sensory neuropathy type I (HSN I) on chromosome 9q22 indicates that HSN I with mild motor symptoms and CMT2 with prominent sensory abnormalities are not allelic. SN - 0022-3050 UR - https://www.unboundmedicine.com/medline/citation/9219740/Mutilating_neuropathic_ulcerations_in_a_chromosome_3q13_q22_linked_Charcot_Marie_Tooth_disease_type_2B_family_ L2 - https://jnnp.bmj.com/lookup/pmidlookup?view=long&pmid=9219740 DB - PRIME DP - Unbound Medicine ER -