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Homozygous Expression of a Dominant Gene Causing Peroneal Muscular Atrophy (Charcot-Marie-Tooth Disease)

Published online by Cambridge University Press:  01 August 2014

H. Warner Kloepfer*
Affiliation:
Department of Anatomy, Tulane University School of Medicine, New Orleans, Louisiana, USA
James M. Killian
Affiliation:
Department of Anatomy, Tulane University School of Medicine, New Orleans, Louisiana, USA
*
Department of Anatomy, Tulane University School of Medicine, 1430 Tulane Avenue, New Orleans, Louisiana 70125, USA

Abstract

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This study involves the presentation of a kindred from Southwestern Louisiana showing 66 individuals who were heterozygous for a rare dominant gene for a type of Charcot-Marie-Tooth disease with hypertrophy of peripheral nerves. Two marriages between heterozygotes resulted in the occurrence of five homozygous offsprings. Clinical features of these previously undescribed homozygotes are compared to the clinical features of the classic type of heterozygote. The value of using nerve-conduction time to detect the asymptomatic heterozygote for Charcot-Marie-Tooth disease is discussed.

Type
6. Free Contributions: Second Group
Copyright
Copyright © The International Society for Twin Studies 1974

References

REFERENCES

Charcot, J.M., Marie, P. 1886. Sur une forme particulière d'atrophie musculaire progressive souvent familiale débutant par les pieds et jambes et atteignant plus tard les mains. Rev. Med. (Paris), 6: 97138.Google Scholar
Dyck, P.J., Lambert, E.H., Mulder, D.W. 1963. Charcot-Marie-Tooth disease. Nerve conduction and clinical studies in a large kinship. Neurology, 13: 111.Google Scholar
Edwards, J.A., Gale, R.P. 1970. A kindred with an unusual hand and foot anomaly. A new autosomal dominant trait with two probable homozygotes. Am. J. Hum. Genet., 22: 18A.Google Scholar
Hall, J.G., Dorst, J.P., Taybi, H., Scott, C.I., Langer, L.O., McKusick, V.A. 1969. Two probable cases of homozygosity for the achondroplasia gene. Birth Defects, 5: 2434.Google Scholar
Mohr, O.L., Wriedt, C. 1919. A new type of hereditary brachyphalangy I, Man. [Publ. 295, pp. 564]. Washington Carnegie Institute.Google Scholar
Snyder, L.H., Doan, C.A. 1944. Clinical and experimental studies in human inheritance. Is the homozygous form of multiple telangiectasia lethal? J. Lab. Clin. Med., 29: 12111216.Google Scholar
Tooth, H.H. 1886. The Peroneal Type of Progressive Muscular Atrophy. London: H.K. Lewis.Google Scholar
Welander, L. 1957. Homozygous appearance of distal myopathy. Acta Genet. Statist. Med., 7:321325.Google Scholar