azoospermia


Also found in: Dictionary, Medical, Wikipedia.

azoospermia

[¦ā‚zō·ō′spər·mē·ə]
(physiology)
Absence of motile sperm in the semen.
Failure of formation and development of sperm.
References in periodicals archive ?
Evaluation of 172 candidate polymorphisms for association with oligozoospermia or azoospermia in a large cohort of men of European descent.
Earlier, there were many studies related to polymorphism screening by applying computational approach to predict the functional missense mutations associated with gene like ubiquitin-specific protease 9, Y chromosome, USP9Y (41); Deleted in Azoospermia Like, DAZL (42); Superoxide Dismutase 2, SOD2 (43); Phosphatase and tensin homolog, PTEN (44).
Infertility because of azoospermia in the presented case can be explained that Y chromosome anomalies can affect X/Y pairing during meiosis resulting in breakdown in spermatogenesis.
In theory, this improved sperm count could have been due to the CC alone (since we don't have semen parameters prior to the initiation of the finasteride, the azoospermia could have been a pre-existing condition) or could have been a result of the CC therapy increasing the intratesticular androgen levels to compensate for the reduced "androgenicity" related to the finasteride use.
Extended sperm preparation: an alternative to testicular sperm extraction in nonobstructive azoospermia.
Sperm is produced by the highly complicated process of spermatogenesis, and partial or complete interruption of spermatogenesis ultimately leads to oligospermia or azoospermia.
reported on the successful sperm extraction from men with non-obstructive azoospermia and the application of intracytoplasmatic sperm injection (ICSI) method [29].
Human Y chromosome azoospermia factors (AZF) mapped to different subregions in Yq11.
They cover understanding the new World Health Organization semen parameters, investigating the subfertile male: which tests are practically relevant, managing ejaculation failure, the medical treatment of oligoasthenoteratozoospermia, whether varicocele surgery helps, evaluating and managing azoospermia, and the surgical management of azoospermia.
A similar technique is given to a male partner who is diagnosed with obstructive azoospermia, or blockage in sperm production.
Azoospermia: Differential diagnosis of azoospermia is based on physical examination of the male, testicular biopsy, endocrine evaluation and genetic screening.