Results 181 to 190 of about 226,100 (242)

Sperm Selection Using Micro Swim‐Up: Improvement of Chromatin Integrity Compared to Density Gradient Centrifugation

Andrology, EarlyView.
ABSTRACT Background Selecting high‐quality spermatozoa with optimal nuclear integrity is a crucial step in assisted reproductive technologies (ART). While density gradient centrifugation (DGC) is widely used, the associated centrifugation steps may induce cell stress, potentially damaging sperm DNA.
Simone Palini, Serena Benedetti, Silvia De Stefani, Luca Galluzzi, Mariangela Primiterra, Sara Rita D'Errico, Michele Tanturli, Monica Muratori   +7 more
wiley   +1 more source

ZAN, IZUMO1, and TMEM95 Protein Domains Identify the Physiological Status of the Sperm

Andrology, EarlyView.
ABSTRACT Background Infertility is a growing concern, which has led to an increase in the use of assisted reproductive techniques, involving in vitro sperm capacitation. Nonetheless, the optimal capacitation time remains a matter of debate, and it is unknown whether it has an impact on the localization of key membrane proteins.
Miranda Hernández‐Falcó, Paula Sáez‐Espinosa, Alejandro Romero, Andrea López‐Botella, Laura Robles‐Gómez, María José Gómez‐Torres   +5 more
wiley   +1 more source

Children Born Using Ejaculated Sperm From Men With Klinefelter Syndrome. Is Sperm Production Associated With Testicular Volume?

Andrology, EarlyView.
ABSTRACT Background A large number of children have been born using testicular sperm from men with Klinefelter syndrome (KS), whereas reports of children conceived using ejaculated sperm are rare. Objective To review all published cases of children conceived using ejaculated sperm from men with KS, assess their health and karyotype, and evaluate ...
Jens Fedder, Freja Sørensen
wiley   +1 more source

Seminal Biomarkers and Sperm Proteomic Signatures Differentiate Acute and Chronic Male Accessory Gland Inflammation

Andrology, EarlyView.
ABSTRACT Background Male accessory gland inflammation (MAGI) comprises a heterogeneous group of inflammatory conditions that may differentially affect the seminal microenvironment and sperm function. However, whether transrectal ultrasound (TRUS)‐defined MAGI phenotypes correspond to distinct biological profiles remains insufficiently characterized ...
Emanuela Teveroni, Fiorella Di Nicuolo, Giorgia Mazzuccato, Alessandro Oliva, Emanuele Pierpaolo Vodola, Francesca Mancini, Carla Di Nardo, Edoardo Vergani, Michela Cicchinelli, Federica Iavarone, Cassandra Serantoni, Giuseppe Maulucci, Alessia Riente, Alfredo Pontecorvi, Andrea Urbani, Domenico Milardi, Silvia Baroni   +16 more
wiley   +1 more source

Robot‐Assisted Peritoneal Flap Vaginoplasty Versus Penile Inversion Vaginoplasty for Gender Affirming Surgery

Andrology, EarlyView.
ABSTRACT Background Direct comparison of robot‐assisted peritoneal flap (PF) to penile inversion (PI) vaginoplasty for gender affirming surgery is absent. Objectives We sought to compare these two techniques to aid patient decision‐making. Materials and Methods A retrospective case–control study of patients who underwent primary PI (N = 40) or PF (N ...
Chantal J. Allan, Michaela Sljivich, Dan Kahan, Camille Torres, Michael Palese, Miroslav Djordjevic, Rajveer S. Purohit   +6 more
wiley   +1 more source

Associations Between Sperm DNA Fragmentation and Lifestyle Factors

Andrology, EarlyView.
ABSTRACT Background Sperm DNA fragmentation index (DFI) has been proposed as a supplementary biomarker to traditional semen parameters in the evaluation of male infertility. However, its determinants and clinical relevance remain unclear, particularly regarding modifiable lifestyle factors.
Lana Haval Mairof Adams, Lærke Priskorn, Joan‐Carles Arce, Heidi Aasted, Elisabeth Carlsen, Raphael Burkan Al‐Najaar, Anders Juul, Niels Jørgensen   +7 more
wiley   +1 more source

Spatiotemporal Expression of ARRDC5 in Mammalian Spermatogenesis

Andrology, EarlyView.
ABSTRACT Background Spermiogenesis is the final phase of sperm development during which haploid round spermatids transform into specialized spermatozoa and occurs across distinct stages of sperm production in the seminiferous epithelium. Abnormalities in this process lead to malformations and an inability of sperm to fertilize eggs.
LeeLa D. Robinson, Jon M. Oatley
wiley   +1 more source

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Regulation of Mammalian Sperm Motility

Archives of Andrology, 1989
The physiological regulation of sperm motility has become more amendable to investigation since the demonstration that cAMP and calcium play a role in modulating the functioning of the flagellar axoneme. Although the external triggering mechanisms that initiate motility and capacitation are still unknown, evidence supports a modification of the calcium
K S Kanous
exaly   +3 more sources

Sperm Motility

, 2019
This module introduces equations related to oxygen diffusion in the context of understanding the relationship between oxygen needs and metabolism. It is intended for an introductory biology audience.
Gross, Lou, Beals, Monica, Harrell, Susan   +2 more
openaire   +2 more sources

Pathophysiology of sperm motility

Frontiers in Bioscience, 2006
Mammalian spermatozoa acquire the ability to swim during their transit from the testis to the oviduct under the control of several external and intracellular factors. These factors play also a pivotal role in regulating acquisition of hyperactivated motility and during the process of chemotaxis. This review summarizes the involvement of such factors in
LUCONI, MICHAELA, FORTI, GIANNI, BALDI, ELISABETTA   +2 more
openaire   +2 more sources