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PLoS By Category | Recent
PLoS Articles
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Urology
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Association of Spermatogenic Failure with the b2/b3 Partial AZFc Deletion
Published:
Friday, April 13, 2012
Author:
Abdelmajid Eloualid et al.
by Abdelmajid Eloualid, Houria Rhaissi, Ahmed Reguig, Safaa Bounaceur, Brahim El houate, Omar Abidi, Majida Charif, Noureddine Louanjli, Elbakkay Chadli, Abdelhamid Barakat, Anu Bashamboo, Ken McElreavey, Hassan Rouba
Infertility affects around 1 in 10 men and in most cases the cause is unknown. The Y chromosome plays an important role in spermatogenesis and specific deletions of this chromosome, the AZF deletions, are associated with spermatogenic failure. Recently partial AZF deletions have been described but their association with spermatogenic failure is unclear. Here we screened a total of 339 men with idiopathic spermatogenic failure, and 256 normozoospermic ancestry-matched men for chromosome microdeletions including AZFa, AZFb, AZFc, and the AZFc partial deletions (gr/gr, b1/b3 and b2/b3).
AZFa and AZFc deletions were identified in men with severe spermatogenic failure at similar frequencies to those reported elsewhere. Gr/gr deletions were identified in case and control populations at 5.83% and 6.25% respectively suggesting that these deletions are not associated with spermatogenic failure. However, b2/b3 deletions were detected only in men with spermatogenic failure and not in the normospermic individuals. Combined with our previous data this shows an association of the b2/b3 deletion (p?=?0.0318) with spermatogenic failure in some populations. We recommend screening for this deletion in men with unexplained spermatogenic failure.
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