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Human Reproduction, Vol 12, 468-473, Copyright © 1997 by Oxford University Press

ARTICLES

Incidence of diploid and disomic sperm nuclei in 45 infertile men

M Guttenbach, MJ Martinez-Exposito, HW Michelmann, W Engel and M Schmid
Department of Human Genetics, University of Wurzburg, Germany.

Sperm cells from 45 infertile patients were investigated for disomy rates of chromosomes 1, 7, 10, 17, X and Y as well as for diploidy by single- and double-target in-situ hybridization. The patients who attended the infertility clinic were aged 23-46 years. Semenograms showed that the patients had oligo-, astheno-, oligoastheno-, oligoterato-, oligoasthenoterato-, or asthenoteratozoospermia. The average disomy rates determined in the patients were similar for all chromosomes, ranging from 0.10% (chromosome Y) to 0.14% (chromosomes 10 and X). Diploidy was detected with a mean incidence of 0.1%. With the exception of two patients who exhibited significantly increased diploidy rates of 0.35 and 1.6%, neither disomy nor diploidy was increased in the group of infertile patients as compared to healthy, fertile males.
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