Results 81 to 90 of about 30,688 (283)

The importance of semen analysis in the context of azoospermia

Clinics, 2013
Azoospermia is a descriptive term referring to ejaculates that lack spermatozoa without implying a specific underlying cause. The traditional definition of azoospermia is ambiguous, which has ramifications on the diagnostic criteria.
Nabil Aziz
doaj  

Azoospermia

Asian Journal of Andrology, 2022
J Sam Fisher, Edward D Kim
openaire   +3 more sources

Seminal Plasma Exosomal miRNA Profiling Reveals hsa‐miR‐7‐5p as a Key Regulator of Sperm Motility in Asthenozoospermia

Andrology, EarlyView.
ABSTRACT Background Asthenozoospermia is a significant contributing factor to male infertility. Accumulating evidence indicates that impaired sperm motility is closely linked to dysregulated microRNA expression during spermatogenesis. Seminal plasma exosomes are enriched with diverse microRNAs, which play pivotal roles in modulating sperm motility, the
Zhi‐Jian Zhu, Meng‐Li Cui, Wen‐Jing Yuan, Jia‐Ning Zhang, Shuo Zhang, Xi‐Qiao Yao, Ruo‐Qing Li, Jin‐Feng Li, En‐Zhong Li   +8 more
wiley   +1 more source

Differentiating between obstructive and non‐obstructive azoospermia: A machine learning‐based approach

BJUI Compass
Background Infertility is a major global concern, with azoospermia, being the most severe form of male infertility. Distinguishing between obstructive azoospermia (OA) and non‐obstructive azoospermia (NOA) is crucial due to their differing treatment ...
Abdolreza Haghpanah, Nazanin Ayareh, Ashkan Akbarzadeh, Dariush Irani, Fatemeh Hosseini, Farid Sabahi Moghadam, Mohammad Ali Sadighi Gilani, Iman Shamohammadi   +7 more
doaj   +1 more source

Over‐expression of hsa_circ_0000116 in patients with non‐obstructive azoospermia and its predictive value in testicular sperm retrieval

Andrology, 2020
Non‐obstructive azoospermia (NOA), identified in approximately 10% of infertile males, is a multifactorial disease whose molecular mechanisms remain unknown.
M. Lv, Liang Zhou, Pan Ge, Yi-xin Li, Jian Zhang, Dang-xia Zhou   +5 more
semanticscholar   +1 more source

Cryopreservation of Spermatozoa Prior and Post‐Orchiectomy in Patients With Testicular Germ Cell Cancer—Does the Timing Matter?

Andrology, EarlyView.
ABSTRACT Background Testicular germ cell cancer (TGCC) is the most frequent malignancy in young men of reproductive age. According to guidelines, semen cryopreservation should be performed prior to orchiectomy. Lack of time and local facilities as well as mental pressure are challenges in terms of fertility preservation before surgery.
Yuhe Tang, Gerald Pühse, Sabine Kliesch, Jann‐Frederik Cremers, Maria Schubert   +4 more
wiley   +1 more source

Predictive factors for sperm retrieval from males with azoospermia who are eligible for testicular sperm extraction (TESE)

Systems Biology in Reproductive Medicine, 2020
The aim of this study was to evaluate the predictive value of factors in infertile male patients to retrieve sperm from their testicles before they undergo testicular sperm extraction (TESE). In total, 64 males were enrolled in this study.
Doroteja Pavan-Jukić, D. Štubljar, T. Jukić, Andrej Starc   +3 more
semanticscholar   +1 more source

SOX30 Governs Synaptonemal Complex Assembly and Homologous Recombination in Male Meiosis

Cell Proliferation, EarlyView.
The transcription factor SOX30 directly binds promoter regions of SYCE1 and SYCE2 to mediate their transcriptional activation, thereby enabling proper assembly of central elements within the synaptonemal complex. Structural destabilisation of the synaptonemal complex in Sox30 KK spermatocytes triggers synaptic discontinuity, impairs homologous ...
Kangle Liu, Wenfeng Zhang, Xiao Jiang, Jianping Chen, Lei Zhu, Zhonghao Zhang, Jing Gu, Lulu Guo, Lin Ao, Qing Chen, Lei Sun, Yuhan Hu, Xin Wang, Yaxin Liu, Jia Cao, Fei Han, Jinyi Liu   +16 more
wiley   +1 more source

The role of varicocele treatment in the management of non-obstructive azoospermia

Clinics, 2013
The literature on male reproductive medicine is continually expanding, especially regarding the diagnosis and treatment of infertility due to non-obstructive azoospermia.
Kubilay Inci, Levent Mert Gunay
doaj  

Testicular mass frozen section examination: Pathological insights and diagnostic accuracy

Histopathology, EarlyView.
Frozen section examination on testicular excisional biopsy is accurate and can help avoid unnecessary radical orchidectomy. A very high concordance rate between frozen section diagnosis and permanent diagnosis was obtained with no false negatives.
Roselyne Choiniere, Willem P A Boellaard, Marij Dinkelman‐Smit, Geert J L H van Leenders   +3 more
wiley   +1 more source