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High prevalence of genetic abnormalities in Middle Eastern patients with idiopathic non-obstructive azoospermia

  • Genetics
  • Published:
Journal of Assisted Reproduction and Genetics Aims and scope Submit manuscript

Abstract

Introduction

Our objective is to detect the frequency and types of major genetic abnormalities of idiopathic non-obstructive azoospermia (NOA) to give appropriate genetic counseling before assisted reproductive techniques (ART) in Middle East and to compare the frequencies with other regions of the world.

Material and methods

A total of 880 Middle Eastern patients with NOA were recruited in this multicenter study for genetic evaluation prior to use of ART. Karyotyping was performed on peripheral blood lymphocytes according to standard G-banding methods, polymerase chain reaction (PCR) was performed to screen the microdeletions in the AZF region of the Y chromosome.

Results

The present study shows that the total prevalence of genetic abnormalities is 28.41 %, including 184 patients (20.91 %) with chromosome disorder and 66 patients (7.5 %) with Y chromosome microdeletions. The most prevalent chromosome abnormality is Klinefelter’s syndrome, which includes 161 patients (18.3 %), 7 patients had XX reversal male sex (0.8 %), 2 patients had 47XYY (0.23 %) and 2 patients had 45XO/46XY (0.23 %). Structural abnormalities occurred in 12 patients (1.36 %).

Conclusions

The high prevalence of genetic abnormalities (28.41 %) in our study strongly suggests the need for routine genetic testing and counseling prior to assisted reproduction in such population with idiopathic infertility, as a result may help determine the prognosis, as well as the choice of ART. Moreover it allows specific pre-implantation genetic testing to minimize the risk of transmitting genetic defects to offspring.

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Acknowledgement

We appreciate the collaboration of the patients and express gratitude to Dr. Sawsan Alsamawi, Dr. Adnan Alkhatib, Dr. Jamal Alsharif, Dr. Ahmad Taha and Professor Ahmad Othman for their kind Collaboration. We also acknowledge the scientific research committee of the faculty of medicine and the research deputy of Orient Hospital for providing grant to carry out this study

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Correspondence to Marwan Alhalabi.

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Capsule

Men with Non-obstructive azoospermia need genetic testing and counseling prior to assisted reproduction.

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Alhalabi, M., Kenj, M., Monem, F. et al. High prevalence of genetic abnormalities in Middle Eastern patients with idiopathic non-obstructive azoospermia. J Assist Reprod Genet 30, 799–805 (2013). https://doi.org/10.1007/s10815-013-9995-z

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  • DOI: https://doi.org/10.1007/s10815-013-9995-z

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