Cytogenetic survey of 1,007 infertile males

Urologia Internationalis
A YoshidaM Shirai

Abstract

The aim of this study was to investigate the influence of a chromosome abnormality on male infertility. The subjects consisted of 1,007 males with the chief complaint of infertility. Karyotyping was conducted mainly by G banding. Major chromosome abnormalities were observed in 62 patients (6.2%) in total and consisted of sex chromosome abnormalities were observed in 62 patients (6.2%) in total and consisted of sex chromosome abnormalities in 38 patients (3.8%) and autosomal chromosome abnormalities in 24 (2.4%). Among the patients with sex chromosome abnormalities, 28 cases were 47, XXY, 3 were 47,XYY, and 7 cases had a Y chromosome abnormality. Autosomal chromosome abnormalities comprised 10 cases of reciprocal translocation, 8 cases of Robertsonian translocation, 5 cases of inversion, and 1 case of ring chromosome. In patients with a sperm density < 5 x 10(6)/ml, a total motile sperm count < 1 x 10(6), a follicle-stimulating hormone value > or = 30.1 mIU/ml, a luteinizing hormone value > or = 8.9 mIU/ml, a testosterone value < or = 2.69 ng/ml, or an average testis volume < or = 8 ml, the incidence of major chromosome abnormalities was significantly higher. These findings suggest that patients who need microinsemination should...Continue Reading

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