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Epigenetics of nonobstructive azoospermia [PDF]

open access: yesAsian Journal of Andrology
Nonobstructive azoospermia (NOA) is a severe and heterogeneous form of male factor infertility caused by dysfunction of spermatogenesis. Although various factors are well defined in the disruption of spermatogenesis, not all aspects due to the ...
Sezgin Gunes   +2 more
doaj   +5 more sources

Nonobstructive azoospermia: an etiologic review [PDF]

open access: yesAsian Journal of Andrology
Azoospermia is the complete absence of spermatozoa in the ejaculate in two or more semen analyses after centrifugation. Nonobstructive azoospermia (NOA) represents the most severe form of male factor infertility accounting for 10%–15% of cases and stems ...
Logan Hubbard   +2 more
doaj   +5 more sources

Varicocele and nonobstructive azoospermia [PDF]

open access: yesAsian Journal of Andrology
Approximately 15% of men in the general population have varicoceles, and varicoceles are diagnosed in 40% of men presenting for fertility evaluations. One percent of men in the general population are azoospermic, and 15% of men presenting for fertility ...
Parviz K Kavoussi   +2 more
doaj   +5 more sources

Differentiation between nonobstructive azoospermia and obstructive azoospermia: then and now [PDF]

open access: yesAsian Journal of Andrology
Male infertility has seen an increase in prevalence with cases of azoospermia estimated to affect 10%–15% of infertile men. Confirmation of azoospermia subsequently necessitates an early causal differentiation between obstructive azoospermia (OA) and ...
Logan Hubbard   +2 more
doaj   +5 more sources

A review of testicular histopathology in nonobstructive azoospermia [PDF]

open access: yesAsian Journal of Andrology
One major challenge in male factor infertility is nonobstructive azoospermia (NOA), which is characterized by spermatozoa-deficient semen without physical duct blockage.
Taymour Mostafa   +2 more
doaj   +5 more sources

Endocrine aberrations of human nonobstructive azoospermia [PDF]

open access: goldAsian Journal of Andrology, 2022
Nonobstructive azoospermia (NOA) refers to the failure of spermatogenesis, which affects approximately 1% of the male population and contributes to 10% of male infertility.
Yong Tao
doaj   +5 more sources

Incidental seminoma in nonobstructive azoospermia: a case report [PDF]

open access: yesF&S Reports
Objective: To report on the incidental finding of invasive seminoma in a patient with nonobstructive azoospermia during microdissection testicular sperm extraction. Design: Case report.
Jonathan Gal, MD   +3 more
doaj   +5 more sources

Development of a predictive model for increasing sperm retrieval success by microdissection testicular sperm extraction in patients with nonobstructive azoospermia [PDF]

open access: yesAsian Journal of Andrology, 2023
Microdissection testicular sperm extraction (micro-TESE) is widely used to treat nonobstructive azoospermia. However, a good prediction model is required to anticipate a successful sperm retrieval rate before performing micro-TESE.
Chen-Yao Deng   +10 more
doaj   +3 more sources

Deciphering the Molecular Characteristics of Human Idiopathic Nonobstructive Azoospermia from the Perspective of Germ Cells [PDF]

open access: goldAdv Sci (Weinh), 2023
Nonobstructive azoospermia (NOA) is one of the most important causes of male infertility, accounting for 10–15% of infertile men worldwide. Among these, more than 70% of cases are idiopathic NOA (iNOA), whose pathogenesis and molecular basis remain ...
Yidong Chen   +9 more
semanticscholar   +3 more sources

Testicular volume is a noninvasive predictor of sperm retrieval failure in idiopathic nonobstructive azoospermia [PDF]

open access: yesAsian Journal of Andrology
We investigated the prognostic importance of noninvasive factors in predicting sperm retrieval failure in idiopathic nonobstructive azoospermia (iNOA). We studied 193 patients with nonobstructive azoospermia who underwent microsurgical testicular sperm ...
Hong Xiao   +8 more
doaj   +3 more sources

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