Results 81 to 90 of about 10,513,345 (205)

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

The frequency of follicle stimulating hormone receptor gene polymorphisms in Iranian infertile men with azoospermia

Iranian Journal of Reproductive Medicine, 2015
Background: Azoospermia is the medical condition of a man not having any measurable level of sperm in his semen. Follicle stimulating hormone (FSH) is a member of the glycoprotein hormone family that plays an important role in human reproduction because ...
Behrouz Gharesi-Fard, Zahra Ghasemi, Saeed Shakeri, Shabnam Behdin, Fatemeh Aghaei, Zahra Malek-Hosseini   +5 more
doaj  

Deficient Expression of DGCR8 in Human Testis is Related to Spermatogenesis Dysfunction, Especially in Meiosis I

International Journal of General Medicine, 2020
Emad Babakhanzadeh,1,2,* Ali Khodadadian,1,* Majid Nazari,1 Masoud Dehghan Tezerjani,1 Seyed Mohsen Aghaei,1 Sina Ghasemifar,1 Mehdi Hosseinnia,3 Mahta Mazaheri1,4 1Department of Medical Genetics, Shahid Sadoughi University of Medical Sciences, Yazd ...
Babakhanzadeh E, Khodadadian A, Nazari M, Dehghan Tezerjani M, Aghaei SM, Ghasemifar S, Hosseinnia M, Mazaheri M   +7 more
doaj  

Predictive Factors for Outcomes in Intracytoplasmic Sperm Injection with Testicular Sperm Extraction Among Non-Obstructive Azoospermia Patients [PDF]

Ain Shams Medical Journal
Background: Techniques for testicular sperm extraction (TESE) linked to intracytoplasmic sperm injection (ICSI) have transformed male infertility therapy, providing many azoospermic men the opportunity to become biological fathers.Aim: To assess the ...
Ahmed ElShibany, Samar Eltoregy, Gehad Diaa Eldin, Ali Mahran, Ahmed Hosny, Abdelrahman Ghazaly   +5 more
doaj   +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

HLA-DPB1*04:01 allele is associated with non-obstructive azoospermia in Japanese patients [PDF]

, 2013
Azoospermia is defined by absence of sperm in the semen and can either be caused by obstruction of the seminal tract (obstructive azoospermia) or by defects in spermatogenesis (non-obstructive azoospermia, NOA).
Kazuyoshi, Hosomichi, Hiroyuki, Okada, Ituro, Inoue, Timothy Adrian, Jinam, Hirofumi, Nakaoka, Atsushi, Tanaka, Shigeki, Mitsunaga, Kenichi, Tanaka   +7 more
core   +1 more source

ICSI outcome of patients with severe oligospermia vs non-obstructive azoospermia

, 2012
Objective: To compare the results of intracytoplasmic sperm injection (ICSI) and embryo transfer (ET) cycles in men with severe oligoospermia and non-obstructive azoospermia. Materials and Methods: This study included 91 ICSI cycles performed due to male
GÜNALP, GALİP SERDAR, KARAKOÇ SÖKMENSÜER, LALE, Demir, B., Bozdag, G., ESİNLER, İBRAHİM, Arikan, I.I.   +5 more
core   +1 more source

In Vitro Modeling of Human Germ Cell Development Using Pluripotent Stem Cells

Stem Cell Reports, 2018
Summary: Due to differences across species, the mechanisms of cell fate decisions determined in mice cannot be readily extrapolated to humans. In this study, we developed a feeder- and xeno-free culture protocol that efficiently induced human pluripotent
Yuncheng Zhao, Shicheng Ye, Dongli Liang, Pengxiang Wang, Jing Fu, Qing Ma, Ruijiao Kong, Linghong Shi, Xueping Gong, Wei Chen, Wubin Ding, Wenjing Yang, Zijue Zhu, Huixing Chen, Xiaoxi Sun, Jun Zhu, Zheng Li, Yuan Wang   +17 more
doaj   +1 more source

Challenges in differential diagnosis between obstructive and non‐obstructive azoospermia

UroPrecision
Background Some cases of non‐obstructive azoospermia (NOA) are characterized by normal clinical parameters, including testicular volume and levels of reproductive hormones, mimicking obstructive azoospermia (OA).
Safar Gamidov, Taras Shatylko, Alikhan Tambiev, Natig Gasanov, Alina Popova, Abdalrahman Alrawashdeh, Gennadiy Sukhikh   +6 more
doaj   +1 more source

Isolated follicle stimulated hormone deficiency in male: case report

BMC Research Notes, 2018
Background Recent rapid advances in assisted reproductive health technologies enables couples with subfertility to conceive through various intervention. Majority of treatment modalities target the female partner.
Gowri M. Ratnayake, P. N. Weerathunga, L. P. Ruwanpura, Amila Wickramasinghe, Prasad Katulanda   +4 more
doaj   +1 more source