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Evaluation Studies
Journal Article
Multiplex sequence-tagged site PCR for efficient screening of microdeletions in Y chromosome in infertile males with azoospermia or severe oligozoospermia.
Archives of Andrology 2002 September
The multiplex STS-PCR method was used to detect microdeletions in the long arm of the Y chromosome (Yq) of cytogenetically normal men. One hundred infertile men with azoospermia or oligozoospermia were screened with the multiplex PCR method using 58 STSs, which are specific to Yq for detecting microdeletions on this chromosome. Correlations between the microdeletions on Yq and phenotypes of spermatogenetic disturbance were also examined. Ten patients (10%) had microdeletions on Yq. Seven of the 60 azoospermic patients (11.7%), and 3 of the 40 oligozoospermic patients (7.5%) had microdeletions on Yq. None of the patients showed microdeletions in the AZFa region, but 2 had deletions in the AZFb region, another 2 in the AZFc region, including DAZ, and 1 had deletions in both the AZFb and in the AZFc, including RBM and DAZ. Single microdeletions were found in 4 patients, all of them in the AZFc around DAZ, and 1 patient had 2 microdeletions in the AZFb. The improved multiplex STS-PCR method efficiently detected microdeletions in 10% of azoospermic or severe oligozoospermic men who were cytogenetically normal. All of these microdeletions were presented in the AZFb and/or AZFc regions. This suggests that these regions contain candidate genes for spermatogenesis.
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