TITLE

Azoospermia factor deletions in varicocele cases with severe oligozoospermia

AUTHOR(S)
Dada, Rima; Kumar, R.; Shamsi, M. B.; Sidhu, T.; Mitra, A.; Singh, S.; Sharma, R. S.; Gupta, S. K.; Gupta, N. P.
PUB. DATE
September 2007
SOURCE
Indian Journal of Medical Sciences;Sep2007, Vol. 61 Issue 9, p505
SOURCE TYPE
Academic Journal
DOC. TYPE
journal article
ABSTRACT
Background: Varicocele is the most common cause of male infertility. The etiology and pathophysiology of varicocele are multifactorial. When low sperm counts are associated with varicocele, varicocelectomy can partially restore spermatogenesis and fertility. Few recent studies have reported that in some varicocele cases, there may be an associated genetic etiology. Presence of a genetic factor like azoospermia factor microdeletions may lead to irreversible spermatogenic arrest in these cases, but very few reports support these findings. However, it is still not understood why some cases improve after varicocelectomy and why some cases show no improvement in semen parameters postoperatively.Aim: It is important to distinguish varicocele cases from Yq microdeletions as these cases have irreversible testicular damage and thus carry a poor prognosis after varicocelectomy.Settings: Research and Referral tertiary care hospital.Design: Prospective study.Materials and Methods: Seventy-two infertile men with varicocele were referred for Yq microdeletion analysis from the infertility clinic of AIIMS and Army Research and Referral Hospital. Genomic DNA was isolated from blood and polymerase chain reaction microdeletion screening was done in these cases to determine the presence or deletion of AZF loci.Results: In this study 7 (9.7%) varicocele cases harbored Yq microdeletion. The sperm count in cases which harbored Yq microdeletion was significantly lower than in cases without Yq microdeletion.Conclusion: Varicocele cases with Yq microdeletion do not show improvement in semen parameters post-varicocelectomy. Detection of Yq microdeletion determines prognosis and future management in such cases.
ACCESSION #
26452340

 

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