Chromosome Abnormalities in Turkish Men with Primary Infertility

Tayfun Güngör
Mine Kanat Pektaş
Müfit Günel
Leyla Mollamahmutoğlu
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OBJECTIVE: The present study aims to identify the prevalence and types of chromosome anomalies among Turkish men with primary infertility.
STUDY DESIGN: A case-control study was undertaken in 474 Turkish men with primary infertility and 450 phenotypically normal fertile men selected for the control group.
RESULTS: Azoospermia is defined to be the most frequent spermiogram abnormality within infertile men, followed by oligoasthenoteratozoospermia. Chromosomal abnormalities were demonstrated to occur significantly more in azoospermic subjects (28.3%) compared to other infertile subjects (11.5%) and fertile men (0.8%). Klinefelter syndrome was detected to be the most frequent chromosomal abnormality with an overall rate of 10.5%. Azoospermia Factor (AZF) microdeletions occur statistically similar among azoospermic men (4.2%) and other infertile men (2.3%), with a total frequency of 3.2%.
CONCLUSION: The high rate of chromosomal anomalies among infertile Turkish men strongly suggests the need for routine cytogenetic analysis prior to the application of assisted reproduction techniques.


Azoospermia, Chromosomal abnormality, Klinefelter syndrome, Male infertility, Spermiogram

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