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Human Reproduction, Vol. 14, No. 1, 247-251, January 1999
© 1999 European Society of Human Reproduction and Embryology

Absence of chromosomal instability in spermatozoa of men affected by testicular cancer

R. Alvarez1,3, L. Tusell1, A. Genescà1, R. Miró1, X. Garcia-del-Muro2 and J. Egozcue1

1 Departament de Biologia Cel.lular i Fisiologia, Universitat Autònoma de Barcelona and 2 Servei d'Oncologia Mèdica, Hospital Duran i Reinals, Spain

Testicular germ cell cancer affects mainly young men. It is the most frequent type of cancer in 20–35 year old men. Since cancer treatment using antineoplasic drugs and ionizing radiation has a negative effect on the function of the gonads, testicular cancer patients are offered the opportunity to cryopreserve their semen samples before the beginning of therapy. For this reason it would be of interest to know whether there is chromosome instability in their spermatozoa prior to any treatment. Using the interspecific human–hamster fertilization system, we have analysed a total of 340 chromosome complements from spermatozoa of control donors and 320 chromosome complements from testicular cancer patients. There were no significant differences in the frequencies of chromosomal aberrations between controls and cancer patients (9.7 and 10.3% respectively; P = 0.4921). Our results indicate that spermatozoa from untreated testicular cancer patients do not show an increased chromosomal instability as compared to control donors.

Key words: chromosome instability/human–hamster system/sperm chromosomes/testicular cancer

3 To whom correspondence should be addressed at: Unitat de Biologia, Departament de Biologia Cel.lular i Fisiologia, Facultat de Medicina, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain


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