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Evidence for a human mitotic mutant with pleiotropic effect

Evidence for a human mitotic mutant with pleiotropic effect SUMMARY Male and female sibs born to third‐cousin parents presented with mental retardation, microcephaly, short stature, juvenile onset limb‐girdle muscular dystrophy and multiple chromosome mosaicism in lymphocytes and fibroblasts. Different aneuploidies (mostly trisomies) were found in 15–20% of the cells and trisomies for the chromosome 8 and chromosome 7 predominated in lymphocytes and fibroblasts respectively, while monosomies were rare. Increased cellular death due to aneuploidy could explain symptoms such as mental and growth retardation and microcephaly. This could be an instance of an autosomal recessive mitotic mutant, possibly affecting a protein simultaneously involved in spindle apparatus and muscle function. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annals of Human Genetics Wiley

Evidence for a human mitotic mutant with pleiotropic effect

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References (14)

Publisher
Wiley
Copyright
Copyright © 1989 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0003-4800
eISSN
1469-1809
DOI
10.1111/j.1469-1809.1989.tb01791.x
Publisher site
See Article on Publisher Site

Abstract

SUMMARY Male and female sibs born to third‐cousin parents presented with mental retardation, microcephaly, short stature, juvenile onset limb‐girdle muscular dystrophy and multiple chromosome mosaicism in lymphocytes and fibroblasts. Different aneuploidies (mostly trisomies) were found in 15–20% of the cells and trisomies for the chromosome 8 and chromosome 7 predominated in lymphocytes and fibroblasts respectively, while monosomies were rare. Increased cellular death due to aneuploidy could explain symptoms such as mental and growth retardation and microcephaly. This could be an instance of an autosomal recessive mitotic mutant, possibly affecting a protein simultaneously involved in spindle apparatus and muscle function.

Journal

Annals of Human GeneticsWiley

Published: Jul 1, 1989

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