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  • Title: Dimensional assessment of X-bearing and Y-bearing haploid and disomic human sperm with the use of fluorescence in situ hybridization and objective morphometry.
    Author: Zavaczki Z, Celik-Ozenci C, Ovari L, Jakab A, Sati GL, Ward DC, Huszar G.
    Journal: Fertil Steril; 2006 Jan; 85(1):121-7. PubMed ID: 16412741.
    Abstract:
    OBJECTIVE: To explore the dimensional attributes of haploid and disomic X-bearing and Y-bearing spermatozoa. DESIGN: Morphometric evaluation of more than 2,000 X-bearing and Y-bearing spermatozoa after identification of the genotype with fluorescence in situ hybridization. SETTING: Academic clinical and research andrology laboratory. MAIN OUTCOME MEASURE(S): Sperm head area, perimeter, long axis, short axis, shape factor, elliptical form factor (long axis/short axis), and tail length. RESULT(S): We found no differences in dimensions or dimensional distributions between X-bearing and Y-bearing spermatozoa, whether in the native or the decondensed state, or in oligozoospermic or normozoospermic men. There were inconsistent differences and a 70% overlap in the dimensions of haploid and disomic spermatozoa. The other 30% of sperm with disomic nuclei were either smaller or larger compared to haploid spermatozoa. CONCLUSION(S): There are no differences, or distinguishing characteristics, in dimensions or dimensional distributions between X-bearing and Y-bearing spermatozoa. Dimensional attributes do not discriminate between dysomic and haploid spermatozoa.
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