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Article

Cytogenetic abnormalities and Y-chromosome microdeletions in infertile Syrian males

  • Authors:
    • Walid Al-Achkar
    • Abdulsamad Wafa
    • Faten Moassass
  • View Affiliations / Copyright

    Affiliations: Division of Human Genetics, Department of Molecular Biology and Biotechnology, Atomic Energy Commission of Syria, Damascus, Syria
  • Pages: 275-279
    |
    Published online on: November 21, 2012
       https://doi.org/10.3892/br.2012.40
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Abstract

Infertility is an important health issue affecting numerous couples. Approximately 30-50% of the cases of male infertility is due to unknown reasons. The main genetic factors involved in male infertility are chromosomal abnormalities and Y chromosome microdeletions within the Yq11 region. The genes controlling spermatogenesis located in the Yq11 region are termed azoospermia factor genes (AZF). Klinefelter syndrome (KS) is the most common of the chromosomal anomalies in the infertile male. AZF microdeletions on the Y chromosome are the most frequent genetic cause of male infertility. Screening for microdeletions in the AZFa, b and c regions of the Y chromosome showed a marked variation among different studies. The present study aimed to investigate the prevalence of such deletions in Syrian men. A total of 162 infertile males (97 azoospermic, 49 oligospermic and 16 severely oligospermic) were screened for chromosomal abnormalities and Y chromosome microdeletions using 28 markers in the AZF region. Twenty (12.34%) patients had chromosomal rearrangements, 17 of them showed sex chromosome abnormalities (11 of 17 patients within the azoospermic group had a KS of 64.7%), 2 patients had apparently balanced autosomal rearrangements, while 1 patient had an inversion. Of the 162 infertile men, 46 patients (28.4%) had Y chromosome microdeletions within the AZF-regions. Most frequently hit were the AZFc (34.8%), followed by the AZFbc, AZFa, AZFac, AZFbc, AZFb, AZFd, AZFab, AZFad, AZFbd, AZFabc and the AZFbcd. Combined AZF deletions involving three regions with chromosomal abnormalities were observed in one case. The higher frequency of AZF deletions in our study was comparable with frequencies in other countries and regions of the world, possibly due to the elevated number of the sequence-tagged site (STS) markers used for this screening.
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Copy and paste a formatted citation
Spandidos Publications style
Al-Achkar W, Wafa A and Moassass F: Cytogenetic abnormalities and Y-chromosome microdeletions in infertile Syrian males. Biomed Rep 1: 275-279, 2013.
APA
Al-Achkar, W., Wafa, A., & Moassass, F. (2013). Cytogenetic abnormalities and Y-chromosome microdeletions in infertile Syrian males. Biomedical Reports, 1, 275-279. https://doi.org/10.3892/br.2012.40
MLA
Al-Achkar, W., Wafa, A., Moassass, F."Cytogenetic abnormalities and Y-chromosome microdeletions in infertile Syrian males". Biomedical Reports 1.2 (2013): 275-279.
Chicago
Al-Achkar, W., Wafa, A., Moassass, F."Cytogenetic abnormalities and Y-chromosome microdeletions in infertile Syrian males". Biomedical Reports 1, no. 2 (2013): 275-279. https://doi.org/10.3892/br.2012.40
Copy and paste a formatted citation
x
Spandidos Publications style
Al-Achkar W, Wafa A and Moassass F: Cytogenetic abnormalities and Y-chromosome microdeletions in infertile Syrian males. Biomed Rep 1: 275-279, 2013.
APA
Al-Achkar, W., Wafa, A., & Moassass, F. (2013). Cytogenetic abnormalities and Y-chromosome microdeletions in infertile Syrian males. Biomedical Reports, 1, 275-279. https://doi.org/10.3892/br.2012.40
MLA
Al-Achkar, W., Wafa, A., Moassass, F."Cytogenetic abnormalities and Y-chromosome microdeletions in infertile Syrian males". Biomedical Reports 1.2 (2013): 275-279.
Chicago
Al-Achkar, W., Wafa, A., Moassass, F."Cytogenetic abnormalities and Y-chromosome microdeletions in infertile Syrian males". Biomedical Reports 1, no. 2 (2013): 275-279. https://doi.org/10.3892/br.2012.40
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