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Abstract
The relatively frequent occurrence of chromosomal abnormalities in spontaneous abortuses
offers an opportunity to gain additional insight into the mechanisms and consequences
of alterations in the karyotype. Studies on 41 successfully cultured specimens showed
abnormalities belonging to each of the three major classes previously reported (autosomal
trisomy, X-monosomy, and triploidy) as well as one case of mosaicism and one with
a structural abnormality. Analyses of pooled data showed a higher mean maternal age
and shorter mean period of gestation for trisomic abortuses than for abortuses associated
with X-monosomy, triploidy, and normal chromosomes. No influence of maternal age could
be demonstrated for X-monosomic or triploid abortions when these were compared with
abortions having normal chromosomes. An association of triploidy with missed abortion
was noted and may be significant.
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Article info
Footnotes
☆Aided by Grant MA 1568 from the Medical Research Council of Canada.
Identification
Copyright
© 1969 Published by Elsevier Inc.