BMC Genomics

, 15:P25 | Cite as

Azoospermia factor microdeletions: common tag STSs in infertile men with azoospermia and sever oligospermia from Egypt

  • Nasser A. Elhawary
  • Neveen S. Seif-Eldin
  • Marwa Zaki
  • Heba Diab
Open Access
Poster presentation


Infertility Azoospermia Secondary Infertility Molecular Genetic Test Maturation Arrest 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Screening of Yq has become one of the most frequently performed postnatal molecular genetic tests in Egypt. A survey sponsored by WHO estimated the prevalence of infertility among Egyptian couples to be 12% (4.3% for primary infertility and 7.7% for secondary infertility) [1]. The 10-Mb AZF region on the q-arm of the Y chromosome is frequently deleted in men with unexplained spermatogenic failure. Microdeletions are linked to AZF loci in 20-30% of patients with non-obstructive azoospermia and in 3-7% of patients with severe idiopathic oligospermia [2]. AZF microdeletions are associated with varied testicular histology, ranging from Sertoli-Cell-Only (SCO) syndrome to hypospermatogenesis to maturation arrest. We aim to determine the tag sequence-tagged sites (STSs) in the AZF-region of Yq associated with azoospermia and severe oligospermia in infertile Egyptian men.

Materials and methods

We analyzed buccal cells from 98 infertile Egyptian men with average ages 22-45 years (56 with azoospermia plus 42 with severe oligospermia) using multiplex PCR for six common AZFa, AZFb, and AZFc STS markers.


Forty-eight (37%) microdeletions with five separate deletions were identified. We found 66.7% of the deletions in the AZFb locus, 20.8% in the AZFa locus, and 12.5% in the AZFc locus. Some common haplotypes (7 of 10) were identified in our sample population. Haplotypes H3 (sY127) and H4 (sY134) were the most common. Separate microdeletions were interestingly localized in infertile Y-chromosome patients.


We conclude that a minimum of three tags; STSs-sY86, sY127 and sY134 can be used to screen infertile Egyptian men for Yq microdeletions before assisted reproduction is initiated as a treatment.


  1. 1.
    Egyptian Fertility Care Society: Community-based study of the prevalence of infertility and its etiological factors in Egypt: (1) The population-based study. Cairo Egyptian Ferti Care Soc. 2009Google Scholar
  2. 2.
    McElreavey K, Chantot-Bastaraud S, Ravel C, Mandelbaum J, Siffroi JP: Y chromosome and male infertility: what is a normal Y chromosome?. J Soc Biol. 2008, 202: 135-41.CrossRefPubMedGoogle Scholar

Copyright information

© Elhawary et al; licensee BioMed Central Ltd. 2014

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Authors and Affiliations

  • Nasser A. Elhawary
    • 1
    • 2
  • Neveen S. Seif-Eldin
    • 3
  • Marwa Zaki
    • 3
  • Heba Diab
    • 3
  1. 1.Department of Medical Genetics, Faculty of MedicineUmm Al-Qura UniversityMeccaKingdom of Saudi Arabia
  2. 2.Department of Molecular Genetics, Faculty of Medicine, Medical Genetics CenterAin Shams UniversityCairoEgypt
  3. 3.Department of Dermatology, Venereology and Andrology, Faculty of MedicineAin Shams UniversityCairoEgypt

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