Study of the Sperm Chromosomal Aneuploidies of Isolated Teratozoospermic Men

ObjectiveTo determine whether patients with isolated teratozoospermia have increased or decreased incidence of chromosomal aneuploidies.MethodsSperm obtained from isolated teratozoospermic men (teratozoospermic group, n=18) and normal fertile men (the control, n=5) were analyzed using FISH (for chromosomes 18, X and Y).ResultsA total of 58 178 spermatozoa were counted from the teratozoospermia group and 16 369 spermatozoa were counted from the control, with the hybridization rates of 97.5% and 98.3%, respectively. The major types of chromosomal aneuploidies were disomy (YY18, XX18, XY18, Y1818 and X1818) and diploidy (1818XX, 1818YY, 1818XY). In the teratozoospermic group and the control, the disomy rates of 18 chromosome were 0.29 ± 0.16% and 0.03 ± 0.02%, the disomy rates of sex chromosome were 0.65 ± 0.24% and 0.05 ± 0.02%, the diploidy rates were 0.14 ± 0.12% and 0.04 ± 0.03%, respectively. All the differences between these two groups were significant (P<0.05).ConclusionsSperm of isolated teratozoospermic men have higher rates of 18, X and Y chromosomal aneuploidies than that of the fertile controls.