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CDY1 analysis in infertile patients with DAZ deletions.

Abstract：

:The DAZ (deleted in azoospermia) gene family is considered the major AZFc ("azoospermia factor" c) candidate responsible for male infertility. However, other genes have been recently mapped to this region and they could contribute to the AZFc phenotype. In particular, the testis-specific CDY1 (chromadomain protein 1) gene has one copy within the DAZ cluster and another one at its distal end. Therefore, this gene could be associated with the spermatogenic damage observed in DAZ-deleted patients since at least one CDY1 copy is invariably absent in these patients. In this study, we investigated whether selected infertile patients affected by different testiculopathies caused by DAZ deletions retained CDY1 and if a genotype-phenotype relation could be demonstrated. We found 3 out of 17 patients with absence of both CDY1 copies, while 14 patients have only one CDY1 copy absent. Two out of the 3 patients with deletion of both copies of CDY1 were affected by severe hypospermatogenesis while one patient presented Sertoli cell-only syndrome. Therefore, there was no clear relation between genotype and phenotype, and the loss of the distal copy of CDY1 does not seem to worsen the phenotype of infertile patients with deletion of the DAZ gene cluster. However, a possible contribution of CDY1 in determining the spermatogenic alteration could not be excluded.

journal_name

J Endocrinol Invest

journal_title

Journal of endocrinological investigation

authors

Ferlin A,Moro E,Rossi A,Foresta C

doi

10.1007/BF03343814

keywords:

subject

Has Abstract

pub_date

2001-02-01 00:00:00

pages

RC4-6

issue

2

eissn

0391-4097

issn

1720-8386

journal_volume

24

pub_type

杂志文章

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