The aim of this study was to detect frequency of microdeletions of Y chromosome in idiopathic cases of male infertility in Serbian population. Patients were subjected to detailed clinical, endocrinological and cytogenetic examinations. Ninety patients with normal cytogenetic findings with azoospermia and severe oligozoospermia were included in the study. In these patients microdeletion analysis was performed by multiplex polymerase chain reaction (PCR) method on DNA extracted from peripheral blood. In each case 6 markers in azoospermia factor (AZF) regions were tested: sY84, sY86 (AZFa); sY127, sY134 (AZFb); sY254, sY255 (AZFc). Deletions on the Y chromosome were detected in 14 of 90 cases (15.6%), nine with azoospermia and five with severe oligozoospermia. Of total number of 17 deletions, 11 (64.7%) were detected in AZFc region, three (17.6%) in AZFa region and three (17.6%) in AZFb region. Microdeletions in AZF region of the Y chromosome, especially AZFc microdeletions, represent common genetic cause of idiopathic azoospermia and severe oligozoospremia in Serbian infertile men. Therefore, testing for Y chromosome microdeletions should be considered as an important element in diagnosis and genetic counseling of infertile men in Serbia and decisions regarding the assisted reproduction should be made based on the presence and type of AZF microdeletions.
Russian Journal of Genetics – Springer Journals
Published: Jun 28, 2007
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