Results 71 to 80 of about 316,363 (294)

Sperm retrieval techniques for assisted reproduction

International Brazilian Journal of Urology, 2011
Different surgical methods such as PESA, MESA, TESA, TESE and micro-TESE have been developed to retrieve spermatozoa from either the epididymis or the testis according to the type of azoospermia, i.e., obstructive or non-obstructive.
Sandro C. Esteves, Ricardo Miyaoka, Ashok Agarwal   +2 more
doaj   +1 more source

The Novel Key Genes of Non-obstructive Azoospermia Affect Spermatogenesis: Transcriptomic Analysis Based on RNA-Seq and scRNA-Seq Data

Frontiers in Genetics, 2021
Non-obstructive azoospermia (NOA) is one of the most important causes of male infertility. It is mainly characterized by the absence of sperm in semen repeatedly or the number of sperm is small and not fully developed.
Haihong He, Fan Yu, Wang Shen, Keyan Chen, Lijun Zhang, Shuang Lou, Qiaomin Zhang, Siping Chen, Xinhua Yuan, Xingwang Jia, Yiwen Zhou   +10 more
semanticscholar   +1 more source

A decision analysis of treatments for obstructive azoospermia [PDF]

Human Reproduction, 2008
Treatments for post-vasectomy obstructive azoospermia include vasectomy reversal, microsurgical epididymal sperm aspiration (MESA) or percutaneous testicular sperm extraction (TESE) with IVF/ICSI. We examined the cost-effectiveness of these treatments.A decision analytic model was created to simulate treatment.
Glenn L. Schattman, Peter N. Schlegel, Peter N. Schlegel, Cigdem Tanrikut, Marc Goldstein, Marc Goldstein, Philip S. Li, Richard K. Lee   +7 more
openaire   +2 more sources

Novel variants in helicase for meiosis 1 lead to male infertility due to non-obstructive azoospermia

Reproductive Biology and Endocrinology, 2021
Background Non-obstructive azoospermia (NOA) is the most severe form of male infertility; more than half of the NOA patients are idiopathic. Although many NOA risk genes have been detected, the genetic factors for NOA in majority of the patients are ...
D. Tang, Mingrong Lv, Yang Gao, Huiru Cheng, Kuokuo Li, Chuan Xu, H. Geng, Guanjian Li, Q. Shen, Chao Wang, Xiaojin He, Yunxia Cao   +11 more
semanticscholar   +1 more source

STAG3 is a strong candidate gene for male infertility [PDF]

, 2014
Oligo- and azoospermia are severe forms of male infertility. However, known genetic factors account only for a small fraction of the cases. Recently, whole-exome sequencing in a large consanguineous family with inherited premature ovarian failure (POF ...
Barbero, José Luis, Caburet, Sandrine, García-Tuñón, Ignacio, Gomez-H, Laura, Llano, Elena, Pendás, Alberto M., Schimenti, John, Sánchez-Martín, M., Veitia, Reiner A.   +8 more
core   +3 more sources

Efficacy of hormone pre‐treatment before ART to improve reproductive outcomes in infertile women with endometriosis: Network meta‐analysis of randomized controlled trials

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Background Hormone pre‐treatment is still used before assisted reproductive technique (ART) in endometriotic women, but evidence supporting this recommendation is conflicting. Objectives To evaluate whether hormone pre‐treatment with gonadotropin‐releasing hormone (GnRH) agonists or progestogens could improve fertility in women with ...
Gaetano Riemma, Luigi Cobellis, Antonio Simone Laganà, Andrea Etrusco, Luigi Della Corte, Marco Torella, Maria Giovanna Vastarella, Raffaela Maria Carotenuto, Pasquale De Franciscis   +8 more
wiley   +1 more source

Cellular Therapy via Spermatogonial Stem Cells for Treating Impaired Spermatogenesis, Non-Obstructive Azoospermia

Cells, 2021
Male infertility is a major health problem affecting about 8–12% of couples worldwide. Spermatogenesis starts in the early fetus and completes after puberty, passing through different stages.
Nesma Abdelaal, B. Tanga, Mai Abdelgawad, S. Allam, Mostafa Fathi, I. Saadeldin, S. Bang, Jongki Cho   +7 more
semanticscholar   +1 more source

Pregnancy via Testicular Sperm Extraction for Anejaculation After Neuroblastoma Surgery

IJU Case Reports, EarlyView.
ABSTRACT Background Surgical treatment of a neuroblastoma, a malignant tumor of the sympathetic nervous system, may result in ejaculatory disorder. There are no reports examining ejaculation disorders after neuroblastoma surgery. Case Presentation The patient was a 31‐year‐old Japanese male who had undergone surgery for neuroblastoma of the abdomen at ...
Jurii Karibe, Teppei Takeshima, Daiji Takamoto, Takashi Kawahara, Kimito Osaka, Jun‐ichi Teranishi, Kazuhide Makiyama, Hiroji Uemura, Yasushi Yumura   +8 more
wiley   +1 more source

Prevalence of Y chromosome deletions in a Brazilian population of nonobstructive azoospermic and severely oligozoospermic men [PDF]

, 2003
We determined the prevalence of Y chromosome deletions in a population of 60 Brazilian nonobstructive azoospermic and severely oligozoospermic men. PCR-based screening of microdeletions was performed on lymphocyte DNA for the presence of 14 sequence ...
Avellar, Maria Christina Werneck, Cedenho, Agnaldo Pereira, Fraietta, Renato, Porto, Catarina Segreti, Spaine, Deborah Montagnini, Srougi, Miguel, São Pedro, Simone Lima   +6 more
core   +2 more sources

Addressing Demographic Challenges Through Public–Private Partnerships: In Vitro Fertilization in Latvia

World Medical &Health Policy, EarlyView.
ABSTRACT The study by Morshed‐Behbahani et al. highlights that financial barriers are not the sole obstacle to accessing infertility treatment. To ensure equal access for all, infertility treatment should be regarded as a universal human right, with the public sector assuming responsibility for its provision.
Arturs Kalva, Girts Brigis
wiley   +1 more source