Concentration of x y sperm low testosterone

Men with 47,XYY syndrome present with varying physical attributes and degrees of infertility. A retrospective chart review was performed on a male infertility and genetic anomaly database. Three patients with 47,XYY were found. All were tall with elevated body mass indices. Scrotal findings ranged from normal to atrophic testicles.
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10.01.2021
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47,XYY Syndrome and Male Infertility

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47,XYY Syndrome and Male Infertility

The clinical features of patients with Klinefelter's syndrome attending a male infertility clinic have been investigated in order to consider their assisted reproduction treatment options. Over 12 years, a total of patients with sterility due to azoospermia had Klinefelter's syndrome. Half of the patients showed hypergonadotrophic hypogonadism, while others showed normogonadism usually hypergonadotrophic. Spermatozoa were observed in semen from one patient with mosaicism and one without. Three-colour FISH revealed hyperploidy in 2.
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Influence of age on sperm characteristics evaluated by light and electron microscopies

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In recent years, investigators have noted a trend toward a declining proportion of male births in many industrialized nations. While men bear the sex-determining chromosome, the role of the female partner as it pertains to fertilization or miscarriage may also alter the gender ratio. We attempted to determine a man's secondary sex ratio F1 generation by directly examining the sex chromosomes of his sperm. We examined our male infertility clinic database for all men who had undergone a semen fluorescence in situ hybridization FISH. Patient demographic and semen parameters were recorded.
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