Results 121 to 130 of about 5,887,583 (287)

Sperm retrieval rates and clinical outcomes with testicular sperm extraction in relation to the etiology of azoospermia [PDF]

Fertility and Sterility, 2019
Tomomoto Ishikawa, Shimpei Mizuta, Kohei Yamaguchi, Hidehiko Matsubayashi, Kotaro Kitaya, Takumi Takeuchi   +5 more
openaire   +1 more source

Sperm retrieval rates and ICSI outcomes for men with nonobstructive azoospermia and the health of resulting offspring

Asian Journal of Andrology, 2014
report on the results of a reasonably large (365) retrospective series of patients with nonobstructive azoospermia (NOA) who had sperm collected by microscopically assisted microdissection (microTESE) for intracytoplasmic sperm injection (ICSI).
openaire   +3 more sources

The Australian Hydromyine Rodents—Their Interspecific Diversity and Reproductive Biology: A Review

Integrative Zoology, EarlyView.
There are two major groups, the Rattus species and the Hydromyini, in Australia. Clearly, the hydromyine rodents, unlike the Rattus genus, exhibit a diverse array of reproductive biological traits in both males and females, the full evolutionary significance of which has yet to be ascertained.
William G. Breed, Christopher M. Leigh, Eleanor J. Peirce   +2 more
wiley   +1 more source

From fluke to fragment: A multifaceted method for molecular sex identification and mitochondrial haplotyping from environmental DNA samples

Methods in Ecology and Evolution, EarlyView.
Abstract Environmental DNA (eDNA) analyses have become a powerful tool for non‐invasive biodiversity monitoring, yet the applicability of population‐genetic approaches to environmental samples remains largely unexplored. Even when genetic traces originate from a single individual, low target DNA concentrations and amplification or sequencing artefacts ...
Lauren Kelly Rodriguez, Sandra Schallhart, Philipp Hobmeier, Thomas G. Curran, Sergi Pérez‐Jorge, Rui Prieto, Cláudia Oliveira, Mónica A. Silva, Bettina Thalinger   +8 more
wiley   +1 more source

Varicocelectomy outcomes among patients with azoospermia and severe oligasthenoteratozoospermia

Urology Annals
Background: Varicocele is a reversible cause of male infertility. However, there are conflicting data available concerning the benefit of varicocele repair for patients with nonobstructive azoospermia (NOA) and severe oligoasthenoteratozoospermia (OAT ...
Abdullah Alkhayal, Sahar Aljumaiah, Ali Alyami, Saad Abumelha   +3 more
doaj   +1 more source

Impact of Chemotherapy on Sperm Functional Characteristics in Patients With Testicular Germ Cell Tumours

Andrology, EarlyView.
ABSTRACT Background Testicular germ cell tumours (TGCT) are the most common malignancies among young men and represent a major threat to reproductive health. Both the disease itself and oncological treatments, particularly chemotherapy, can compromise spermatogenesis and semen quality.
Ondrej Sanovec, Ondrej Simonik, Zuzana Kratka, Lukas Ded, Jana Vondrakova, Maryam Qasemi, Barbora Bryndova, Michala Krejci, Daniela Spevakova, Vishma Pratap Sur, Radomir Kren, Tomas Hradec, Pavel Skrobanek, Ludmila Boublikova, Libor Zamecnik, Tomas Buchler, Jiri Neuzil, Pavla Postlerova, Katerina Komrskova   +18 more
wiley   +1 more source

Predictive Value of Varicocele Grade and Histopathology in Simultaneous Varicocelectomy and Sperm Retrieval in Non-Obstructive Azoospermia: A Retrospective Cohort Study

Medicina
Background and Objectives: Varicocele repair in men with non-obstructive azoospermia (NOA) remains a subject of debate due to inconsistent outcomes. This study aimed to evaluate the impact of microsurgical varicocelectomy on sperm recovery rates in men ...
Aris Kaltsas, Fotios Dimitriadis, Michael Chrisofos, Nikolaos Sofikitis, Athanasios Zachariou   +4 more
doaj   +1 more source

Assessing a Model for a Complex Systemic Disorder—The Value of Male Mice With a Supernumerary X Chromosome for Klinefelter Syndrome Research

Andrology, EarlyView.
ABSTRACT Introduction Direct experimental investigation of Klinefelter syndrome (KS) in patients is limited because the syndrome manifests heterogeneously and affects multiple organ systems. Studying KS therefore requires a model that captures this complexity as accurately as possible while still permitting controlled experimental manipulation ...
Fariba Saadati, Joachim Wistuba
wiley   +1 more source

Postmortem Sperm Procurement

, 1997
PURPOSE: We determined the prevalence of requests for postmortem sperm procurement and the degree to which procurement is performed by those working in the field of infertility.
O'Neill, Kathryn, Urowitz, Sara, Smugar, Steve, Kerr, Susan M., Caplan, Arthur, Polin, Glenn   +5 more
core   +1 more source

Hyperactivation and Tyrosine Phosphorylation of Cryopreserved Stallion Spermatozoa in Relation to Conventional In Vitro Fertilization Blastocyst Production

Andrology, EarlyView.
ABSTRACT Background Challenges in establishing clinical conventional in vitro fertilization (IVF) in horses include variation in sperm and oocyte quality, which can be affected by mare age. Extended preincubation of stallion spermatozoa has resulted in successful IVF.
Raul A. Gonzalez‐Castro, Carolina C. Porflidt, Alexandra L. Ash, Jacobo S. Rodriguez, Perla D. Fleury, Edward L. Squires, Elaine M. Carnevale   +6 more
wiley   +1 more source