Results 141 to 150 of about 5,887,583 (287)

Efficacy of percutaneous needle aspiration and open biopsy for sperm retrieval in men with non-obstructive azoospermia.

, 2008
Item does not contain fulltextOBJECTIVE: To assess the efficacy of the two most common sperm retrieval procedures, testicular sperm aspiration (TESA) and testicular sperm extraction (TESE) as part of the diagnostic work-up in men with non-obstructive ...
Kremer, J. A., Lundin, Kersti,, Houwen, J., Kremer, J.A.M., Soderlund, B., Bergh, Christina,, Bergh, C., Ekerhovd, Erling,, Lundin, K., Ekerhovd, E.   +9 more
core   +1 more source

Adenosine—A Regulator of Human Testicular Peritubular Cells

Andrology, EarlyView.
ABSTRACT Background Extracellular purines, in particular ATP and adenosine, are regulators of physiological and pathophysiological processes throughout the human body. Roles in the human testis are emerging and include actions on peritubular cells, which form the wall of seminiferous tubules.
Lina Scholz, Annika Liebich, Youli Stepanov, Jan B. Stöckl, Mirko Peitzsch, Michaela Schneider, Julia Schneider, Nicole Kreitmair, Matthias Trottmann, Frank‐Michael Köhn, Jovica Ninkovic, Thomas Fröhlich, Artur Mayerhofer   +12 more
wiley   +1 more source

Predictive factors shaping fertility potential and reproductive outcomes in men with Klinefelter syndrome

Asian Journal of Andrology
Klinefelter syndrome (KS), marked by testicular heterogeneity, provides a rationale for testicular sperm extraction in azoospermic men, yet large-scale evaluations of predictive and reproductive outcomes remain limited.
Itai Atar, Shimi Barda, Yael Kalma, Sandra E Kleiman, Foad Azem, Ron Hauser, Snir Dekalo, Noga Fuchs Weizman   +7 more
doaj   +1 more source

Association between JMJD1A Expression and Sperm Retrieval in Non-Obstructive Azoospermic Patients

, 2017
Identification of molecular markers which can predict the outcome of sperm retrieval non-invasively in patients with non-obstructive azoospermia (NOA) are valuable in clinical andrology.
Raha Favaedi, Tahereh Modarresi, Marjan Sabbaghian, Zahra Eelaminejad, Maryam Shahhoseini, Mohammad Ali Sadighi Gilani   +5 more
core   +2 more sources

Prevalence of Spermatozoa in the Ejaculate of Adolescents With Klinefelter Syndrome: Implications for Fertility Counseling

Andrology, EarlyView.
ABSTRACT Background Klinefelter syndrome (KS) is the most common genetic cause of male infertility and is associated with nonobstructive azoospermia. Advances in surgical sperm retrieval techniques have enabled biological fatherhood in a subset of men with KS.
Cecilie N. Larsen, Andrés Felipe Ø. Fritzbøger, Sofia B. Winge, Niels Jørgensen, Anders Juul, Lise Aksglaede   +5 more
wiley   +1 more source

Fertilization Capability of Frozen Epididymal Sperm for Intracytoplasmic Sperm Injection

, 2009
Both microsurgical epididymal sperm aspiration (MESA) and intracytoplasmic sperm injection (ICSI) are great advances in assisted reproductive techniques. By using the ICSI technique, frozen sperm from the epididymis can result in successful fertilization.
劉詩彬;勞漢信;謝汝敦, LIU, SHIH-PING;LAW, HAN-SHIN;HSIEH, JU-TON   +1 more
core  

Sperm Selection Using Micro Swim‐Up: Improvement of Chromatin Integrity Compared to Density Gradient Centrifugation

Andrology, EarlyView.
ABSTRACT Background Selecting high‐quality spermatozoa with optimal nuclear integrity is a crucial step in assisted reproductive technologies (ART). While density gradient centrifugation (DGC) is widely used, the associated centrifugation steps may induce cell stress, potentially damaging sperm DNA.
Simone Palini, Serena Benedetti, Silvia De Stefani, Luca Galluzzi, Mariangela Primiterra, Sara Rita D'Errico, Michele Tanturli, Monica Muratori   +7 more
wiley   +1 more source

Microscopic Testicular Sperm Extraction in Patients with Klinefelter Syndrome: Long-Term Outcomes from a Single Center

The New Journal of Urology
Objective: Klinefelter syndrome (KS) represents a sex chromosome anomaly observed in approximately 1 in 500–600 phenotypic males. It is observed in 3% of infertile males and up to 11.9% of azoospermic males. KS manifests in either non-mosaic (47,
Eyyup Sabri Pelit, Bülent Katı
doaj   +1 more source

Children Born Using Ejaculated Sperm From Men With Klinefelter Syndrome. Is Sperm Production Associated With Testicular Volume?

Andrology, EarlyView.
ABSTRACT Background A large number of children have been born using testicular sperm from men with Klinefelter syndrome (KS), whereas reports of children conceived using ejaculated sperm are rare. Objective To review all published cases of children conceived using ejaculated sperm from men with KS, assess their health and karyotype, and evaluate ...
Jens Fedder, Freja Sørensen
wiley   +1 more source

Does the time from spinal cord injury affect the sperm retrieval rate in testicular sperm extraction?

European Urology Open Science, 2022
M. Morelli, G. Sampogna, C. Scorio, L. Spirito, L. Frediani, M.C. Guerrer, M. Spinelli   +6 more
openaire   +1 more source