Results 91 to 100 of about 316,363 (294)

Medical management of non-obstructive azoospermia

Clinics, 2013
Non-obstructive azoospermia is diagnosed in approximately 10% of infertile men. It represents a failure of spermatogenesis within the testis and, from a management standpoint, is due to either a lack of appropriate stimulation by gonadotropins or an intrinsic testicular impairment.
openaire   +5 more sources

Obstructive azoospermia as an unusual complication associated with herniorrhaphy of an omphalocele: a case report

Journal of Medical Case Reports, 2011
Introduction Iatrogenic damage to the seminal tract is one of the causes of obstructive azoospermia, which can be an indication for reconstruction surgery.
Kanematsu Akihiro, Yoshimura Koji, Soda Takeshi, Ichioka Kentaro, Okubo Kazutoshi, Tsuchihashi Kazunari, Ogawa Osamu, Nishiyama Hiroyuki   +7 more
doaj   +1 more source

Non-Invasive Diagnostics of Male Spermatogenesis from Seminal Plasma: Seminal Proteins

Diagnostics, 2023
The compounds of seminal plasma have great potential as biomarkers of male fertility and can be used as a diagnostic tool for types of azoospermia. Azoospermia occurs in approximately 1% of the male population, and for an effective therapy of this form ...
Michal Ješeta, Anna Pospíšilová, Lenka Mekiňová, Kateřina Franzová, Pavel Ventruba, Eva Lousová, Bartosz Kempisty, Tomáš Oždian, Jana Žáková, Igor Crha   +9 more
doaj   +1 more source

Update on male reproductive endocrinology. [PDF]

, 2018
Practitioners of male reproductive and sexual medicine must have an intimate understanding of the physiology of male reproductive endocrinology, as such a knowledge is the cornerstone on which hormonal treatments are based.
Clavijo, Raul, Hsiao, Wayland
core   +1 more source

Varicocele treatment in non-obstructive azoospermia: a systematic review

Arab Journal of Urology, 2021
Objective: To review the available literature and identify factors associated with successful outcomes after varicocele repair (VR) in the setting of non-obstructive azoospermia (NOA).
Stephanie Jensen, Edmund Y Ko
semanticscholar   +1 more source

Initial motility and vitality predict the semen quality after long‐term cryostorage, even in patients with restricted ejaculate parameters

Andrology, EarlyView.
Abstract Background Cryopreservation of human semen is the cornerstone for preserving male fertility before gonadotoxic therapy or in cases of high variability in semen parameters. This is particular crucial in cases of severe oligoasthenoteratozoospermia (OAT), where diminished sperm counts may compromise planned intracytoplasmic sperm injection (ICSI)
Simone Bier, Daniela Hanke, Michael Zitzmann, Sabine Kliesch, Verena Nordhoff   +4 more
wiley   +1 more source

Chromosomal and molecular abnormalities in a group of Brazilian infertile men with severe oligozoospermia or non-obstructive azoospermia attending an infertility service

International Brazilian Journal of Urology, 2011
PURPOSE: To determine the frequency of genetic alterations in a population of Brazilian infertile men with severe oligozoospermia or non-obstructive azoospermia.
Fernanda A. Mafra, Denise M. Christofolini, Bianca Bianco, Marcello M. Gava, Sidney Glina, Sintia I. N. Belangero, Caio P. Barbosa   +6 more
doaj   +1 more source

Characterization of DDX4 Gene Expression in Human Cases with Non-Obstructive Azoospermia and in Sterile and Fertile Mice

Journal of reproduction & infertility, 2021
Background: In mammals, spermatogenesis is the main process for male fertility that is initiated by spermatogonial stem cells (SSCs) proliferation. SSCs are unipotent progenitor cells accountable for transferring the genetic information to the following ...
Hossein Azizi, Amirreza NiaziTabar, Atiyeh Mohammadi, T. Skutella   +3 more
semanticscholar   +1 more source

Impact of age at first visit on glycolipid metabolism, bone metabolism, and fertility potential in patients with Klinefelter syndrome

Andrology, EarlyView.
Abstract Background Classic Klinefelter syndrome (KS) is characterized by one extra X chromosome (47, XXY), leading to hypergonadotropic hypogonadism and higher risk of alterations in glycolipid homeostasis, cardiovascular diseases, and low bone mineral density. Most frequently, KS is diagnosed in adulthood because of infertility.
Giordana Ferraioli, Andrea Graziani, Noemi Sagone, Andrea Di Nisio, Massimo Iafrate, Fabrizio Dal Moro, Alberto Ferlin, Andrea Garolla   +7 more
wiley   +1 more source

Azoospermia: a Genomic Review [PDF]

, 2017
Azoospermia or the absence of sperm in semen is one of the sperm disorders that results in male infertility. There are two types of azoospermia, the first one isazoospermia caused by obstruction of the vas deferens (obstructive azoospermia) and the ...
Larasati, M. D. (Manggiasih), lestari, S. W. (Silvia)   +1 more
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