Chromosome changes in Alzheimer's presenile dementia

Lymphocyte chromosomes were examined in 36 patients with Alzheimer's presenile dementia, 36 healthy, age and sex matched controls, and 36 sex matched, non-demented, elderly controls, approximately 20 years older than the Alzheimer patients. Increased chromosome aneuploidy was found in females w...

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Bibliographic Details
Published in:Journal of medical genetics 1983-02, Vol.20 (1), p.46-51
Main Authors: Buckton, K E, Whalley, L J, Lee, M, Christie, J E
Format: Article
Language:English
Subjects:
Adult
Aged
Aging
Alzheimer Disease - genetics
Aneuploidy
Dementia
Dementia - genetics
Female
Humans
Lymphocytes - ultrastructure
Male
Middle Aged
Sex Chromosomes
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Summary:Lymphocyte chromosomes were examined in 36 patients with Alzheimer's presenile dementia, 36 healthy, age and sex matched controls, and 36 sex matched, non-demented, elderly controls, approximately 20 years older than the Alzheimer patients. Increased chromosome aneuploidy was found in females with Alzheimer's disease but not in male subjects. Chromosome abnormalities observed in female patients were similar to those observed in elderly controls, though in this latter group there was an increase in the frequency of cells that had lost an X chromosome. In the female Alzheimer patients and the elderly controls, there was an increase in the frequency of autosomal aneuploid cells but no single chromosome was preferentially affected. Because the chromosome abnormalities found in Alzheimer's disease are similar in nature but not as extensive as those observed in senescence in the absence of dementia, it is argued that chromosome aneuploidy is more likely to be related to processes concerned with ageing rather than being specifically linked to the dementia of Alzheimer's disease.
ISSN:0022-2593
1468-6244
1468-6244
DOI:10.1136/jmg.20.1.46