[Sperm-fluorescence in situ hybridization analysis in patients with pericentric inversions of Y chromosome].
OBJECTIVE
To analyze the sex chromosome meiotic segregation in inv(Y) patients by fluorescence in situ hybridization (FISH).


METHODS
Conventional cytogenetic procedures (GTG and CBG banding) and FISH were performed on metaphase chromosome. Three-color FISH was performed on sperm samples using a probe mixture containing CEPX, Tel Xp/Yp and Tel Xq/Yq to investigate the sex chromosome segregation of five inv(Y) (p11.1q11.2) carriers. A healthy man with normal semen parameters was used as control.


RESULTS
There was no statistical difference in the abnormal sex chromosome number and recombination frequencies in each spermatozoon from the patient in comparison with that in the control.


CONCLUSIONS
There was no apparent sex chromosome abnormality in the sperm of the inv(Y) (p11.1q11.2) carriers. Sperm-FISH allows further understanding of the sex chromosome segregation pattern and an accurate genetic counseling.
Luo
Yu-qin
YQ
Department of Clinical Laboratory, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310006 PR China.
Qian
Yu-li
YL
Lu
Huan-ming
HM
Xu
Chen-ming
CM
Jin
Fan
F
D016022:Case-Control Studies; D007446:Chromosome Inversion; D041322:Chromosomes, Human, Y / Q000235:genetics*; D005260:Female; D006801:Humans; D017404:In Situ Hybridization, Fluorescence / Q000379:methods*; D008297:Male; D008540:Meiosis / Q000235:genetics; D011995:Recombination, Genetic; D012729:Sex Chromosome Aberrations; D013094:Spermatozoa / Q000378:metabolism* / Q000473:pathology