Results 71 to 80 of about 193,010 (206)

Distribution and number of Cajal-like cells in testis tissue with azoospermia

Kaohsiung Journal of Medical Sciences, 2017
We investigated the number and distribution of Cajal-like cells in patients with azoospermia. A total of 99 patients with non-obstructive azoospermia were divided into subgroups [19 patientsin hypospermatogenesis group (S1), 40 patients in maturation ...
Eray Hasirci, Tahsin Turunc, Nebil Bal, Mehmet Resit Goren, Huseyin Celik, Enis Kervancioglu, Ayhan Dirim, Mustafa Agah Tekindal, Hakan Ozkardes   +8 more
doaj   +1 more source

Testicular Biopsies in Adolescent and Adult Andrological Patients: The EAA Clinical Guidelines

Andrology, Volume 14, Issue 7, Page 1906-1928, October 2026.
ABSTRACT Background Histological evaluation of testicular tissue is central to the assessment of infertile men, particularly those at an increased risk of testicular germ cell tumors (TGCT). Traditionally, testicular biopsies have been used primarily for diagnostic purposes, such as the detection of germ cell neoplasia in situ (GCNIS). With advances in
Lise Aksglaede, George Kanakis, Ewa Rajpert‐De Meyts, Davor Jezek, Ferran Algaba, Gert Dohle, Jolanta Slowikowska‐Hilczer, Sabine Kliesch, Hermann M. Behre, Csilla Krausz, Dimitrios G. Goulis, Niels Jørgensen   +11 more
wiley   +1 more source

Predictive factors for sperm retrieval and sperm injection outcomes in obstructive azoospermia: do etiology, retrieval techniques and gamete source play a role?

Clinics
Obstructive azoospermia is a relatively common male infertility condition. The main etiologies of obstructive azoospermia include congenital, surgical-derived, traumatic and post-infectious cases. Although seminal tract reconstruction is a cost-effective
Ricardo Miyaoka, Sandro C. Esteves
doaj   +1 more source

Hormonal Therapy Before Micro‐TESE in Men With Nonobstructive Azoospermia: A Negative Answer to an Overly Broad Question

Andrology, EarlyView.
Sandro C. Esteves, Arnold P. P. Achermann, Ricardo Miyaoka, Cassio L. Z. Riccetto, Adriano Fregonesi   +4 more
wiley   +1 more source

eEF1G Orchestrates Translation to Ensure Meiotic Progression in Transcriptionally Quiescent Spermatocytes

Advanced Science, Volume 13, Issue 52, 18 September 2026.
eEF1G supports translation elongation of meiotic mRNAs in transcriptionally quiescent leptotene and zygotene spermatocytes. Its depletion in germ cells causes meiotic arrest at the zygotene stage, with defective homologous synapsis and unstable recombination intermediates.
Jianze Xu, Yuwei Hu, Xukun Lu, Yuling Cai, Tongtong Li, Ming Gao, Jinlong Ma, Yuan Gao, Shangming Liu, Zi‐Jiang Chen, Jing Meng, Hongbin Liu, Xiaohua Jiang   +12 more
wiley   +1 more source

Author's Response: Can Hormonal Therapy Improve the Outcomes of mTESE in Patients with Nonobstructive Azoospermia?

Andrology, EarlyView.
M. Anfosso, M. Schubert, JF. Cremers, S. Kliesch, M. Zitzmann, S. Bier   +5 more
wiley   +1 more source

Diagnosis and treatment of obstructive azoospermia

, 2004
There are two types of azoospermia, namely, obstructive and nonobstructive azoospermia. Urologists play a more important role in the former, because many patients of the former can expect spontaneous pregnancy after surgical reconstruction of the seminal
六車, 光英, 松田, 公志, 日浦, 義仁   +2 more
core  

Scrotal US for evaluation of infertile men with azoospermia

, 2006
PURPOSE: To evaluate prospectively the accuracy of scrotal ultrasonography (US) in distinguishing obstructive azoospermia from nonobstructive azoospermia in infertile men by using histologic findings as the reference standard.
Cho, Jeong Yeon, Chun, Yi Kyeong, Kim, Seung Hyup, Moon, Min Hoan, Seo, Ju Tae   +4 more
core   +1 more source

The management of obstructive azoospermia: a committee opinion [PDF]

Fertility and Sterility, 2019
Infertility due to obstructive azoospermia may be treated effectively by surgical reconstruction or by retrieval of sperm from the epididymis or testis, followed by in vitro fertilization with intracytoplasmic sperm injection. This replaces the ASRM documents titled "Sperm retrieval for obstructive azoospermia" and "The management of infertility due to
openaire   +2 more sources

Intratesticular Doppler flow, seminal plasma nitrites/nitrates, and nonobstructive sperm extraction from patients with obstructive and nonobstructive azoospermia. [PDF]

, 2001
To prospectively evaluate the role of intratesticular vascular flow in modulating sperm function in men with obstructive and nonobstructive azoospermia.
Annibale Volpe, Giorgia Regnani, FACCHINETTI, Fabio, VOLPE, Annibale, Simone Giulini, C. Battaglia, S. Giulini, G. Regnani, Cesare Battaglia, Fabio Facchinetti, I. Madgar, Igael Madgar   +11 more
core   +1 more source