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Chromosomes in old age: A six year longitudinal study

✍ Scribed by Lissy F. Jarvik; Fu-Sun Yen; Tsu-Ker Fu; Steven S. Matsuyama

Publisher
Springer
Year
1976
Tongue
English
Weight
413 KB
Volume
33
Category
Article
ISSN
0340-6717

No coin nor oath required. For personal study only.

✦ Synopsis

This first longitudinal study on aged subjects confirms previous cross-sectional observations of increasing aneuploidy with advancing age in women but not in men. In this study of 17 aged twins (mean age 89.7 years), 11 women and 6 men, spanning an interval of approximately 6 years between examinations, only women showed a significant increase in hypodiploidy (also hyperdiploidy and monosomy C). This increase in hypodiploidy was not due to a high frequency of chromosome loss in a few subjects but rather was exhibited by most of the subjects. While men showed a loss in G-group chromosomes during this 6-year interval, that loss was not statistically significant. These findings confirm for the first time by means of longitudinal follow-up that women and not men, even in the ninth decade of life, show a significant increase in hypodiploidy.

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