%0 Journal Article %T Chromosomal evaluation in a group of Tunisian patients with non-obstructive azoospermia and severe oligozoospermia attending a Tunisian cytogenetic department. %T Anomalies chromosomiques et infertilité masculine : étude rétrospective de 476 hommes tunisiens azoospermiques ou oligozoospermiques sévères %+ Laboratoire de Génomique Biomédicale et Oncogénétique - Biomedical Genomics and Oncogenetics Laboratory (LR11IPT05) %+ Institut Pasteur de Tunis %+ Department of Urology %+ Department of Obstetrics and Gynecology %+ Laboratory of Electronic Microscopy %+ Department of Pathology %A Amouri, Ahlem %A Hammami, Wajih %A Kilani, Olfa %A Bouzouita, Abderrezzak %A Ayed, Wiem %A Ben Meftah, Mounir %A Khrouf, Mohamed %A Fadhlaoui, Anis %A Abdelhak, Sonia %A Zhioua, Fethi %A Jaafoura, Mohamed Habib %Z This work was supported by the Tunisian Ministry of Higher Education and Scientific Research (Laboratory of ‘‘Biomedical Genomics and Oncogenetics’’ LR11IPT05) and the Tunisian Ministry of Public Health. %< avec comité de lecture %J Comptes Rendus Biologies %I Elsevier %V 337 %N 4 %P 223-8 %8 2014-04 %D 2014 %R 10.1016/j.crvi.2014.02.006 %M 24702890 %K Male infertility %K Chromosome abnormalities %K Oligozoospermia %K Azoospermia %Z Life Sciences [q-bio]Journal articles %X Male infertility is the cause in half of all childless partnerships. Numerous factors contribute to male infertility, including chromosomal aberrations and gene defects. Few data exist regarding the association of these chromosomal aberrations with male infertility in Arab and North African populations. We therefore aimed to evaluate the frequency of chromosomal aberrations in a sample of 476 infertile men with non-obstructive azoospermia (n=328) or severe oligozoospermia (n=148) referred for routine cytogenetic analysis to the department of cytogenetics of the Pasteur Institute of Tunis. The overall incidence of chromosomal abnormalities was about 10.9%. Out of the 52 patients with abnormal cytogenetic findings, sex chromosome abnormalities were observed in 42 (80.7%) including Klinefelter syndrome in 37 (71%). Structural chromosome abnormalities involving autosomes (19.2%) and sex chromosomes were detected in 11 infertile men. Abnormal findings were more prevalent in the azoospermia group (14.02%) than in the severe oligozoospermia group (4.05%). The high frequency of chromosomal alterations in our series highlights the need for efficient genetic testing in infertile men, as results may help to determine the prognosis, as well as the choice of an assisted reproduction technique. Moreover, a genetic investigation could minimize the risk of transmitting genetic abnormalities to future generations. %G English %L pasteur-01060738 %U https://riip.hal.science/pasteur-01060738 %~ RIIP %~ RIIP_TUNIS