Results 151 to 160 of about 2,389,697 (294)

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

Loss‐of‐Function Variants in CCDC189 Cause Human Oligoasthenoteratozoospermia by Disrupting Sperm Flagellar and Acrosomal Architecture

Andrology, EarlyView.
ABSTRACT Background Oligoasthenoteratozoospermia (OAT), characterized by reduced sperm count, impaired motility, and abnormal morphology, is a major cause of male infertility with substantial genetic heterogeneity. However, the underlying genetic etiology remains unresolved in a large proportion of affected individuals.
Jianteng Zhou, Ghulam Mustafa, Tingting Lin, Jingwei Ye, Huan Zhang, Hanwei Jiang, Kexin Yang, Guoning Huang, Qinghua Shi   +8 more
wiley   +1 more source

Cumulative impact of adding frozen-thawed cycles to single versus double fresh embryo transfers

, 2007
Randomized control trials have shown that single embryo transfer (SET) results in lower live birth rates than double embryo transfer (DET), while observational, retrospective studies find no decrease in overall live birth rate when using a SET policy ...
Lundin, Kersti,, Bergh, Christina,
core  

Testicular Biopsies in Adolescent and Adult Andrological Patients: The EAA Clinical Guidelines

Andrology, EarlyView.
ABSTRACT Background Histological evaluation of testicular tissue is central to the assessment of infertile men, particularly those at an increased risk of testicular germ cell tumors (TGCT). Traditionally, testicular biopsies have been used primarily for diagnostic purposes, such as the detection of germ cell neoplasia in situ (GCNIS). With advances in
Lise Aksglaede, George Kanakis, Ewa Rajpert‐De Meyts, Davor Jezek, Ferran Algaba, Gert Dohle, Jolanta Slowikowska‐Hilczer, Sabine Kliesch, Hermann M. Behre, Csilla Krausz, Dimitrios G. Goulis, Niels Jørgensen   +11 more
wiley   +1 more source

Improving ARTs: Microfluidics as a Tool for Sperm Selection

Andrology, EarlyView.
ABSTRACT Sperm selection is a critical step in assisted reproductive technology (ART), as sperm quality directly influences embryo quality. In vivo, the female reproductive tract imposes several physical and physiological barriers that favors only the most optimal spermatozoa reaching the fertilization site.
A. Pérez‐Gómez, A. Urriés, J. L. de Pablo, L. Serrano‐Ramón, S. Sanchez, R. Herrer, J. M. Morrell, C. Malo   +7 more
wiley   +1 more source

Biallelic Truncating Variant in LRGUK Is Associated With Severe Multiple Morphological Abnormalities of the Sperm Flagella and Sperm Nuclear Defects in Humans

Clinical Genetics, EarlyView.
A homozygous truncating variant in LRGUK results in loss of the LRGUK protein and causes multiple morphological abnormalities of the flagella (MMAF), disrupted axonemal architecture, central pair defects, abnormal chromatin organization, and severe male infertility, establishing LRGUK as a novel human infertility gene.
Wiâme Mokkedem, Zeina Wehbe, Anne‐Laure Barbotin, Angèle Boursier, Célia Tebbakh, Nicolas Thierry‐Mieg, Marie Bidart, Antonella Migliaccio, Rosanna Chianese, Christophe Arnoult, Raoudha Zouari, Zine‐Eddine Kherraf, Pierre F. Ray, Guillaume Martinez, Charles Coutton   +14 more
wiley   +1 more source

Optimal timing for frozen-thawed embryo transfer: evidence from a systematic review and meta-analysis. [PDF]

Front Endocrinol (Lausanne)
Jiao G, Lian H, Liu X, Yin X.
europepmc   +1 more source

Integrating cryobanks into conservation frameworks: The case of boreal caribou in Ontario

Conservation Science and Practice, EarlyView.
Conservation cryobanks are a powerful but underutilized complement to conventional recovery strategies such as habitat protection and population monitoring. Here, we present a transferable, stepwise framework for integrating cryobanking into formal species recovery plans, including guidance on population prioritization, partner engagement, and the ...
Vanessa E. Luzuriaga‐Aveiga, Gregory A. Wilson, Gabriela F. Mastromonaco   +2 more
wiley   +1 more source

The Effect of Intramuscular Human Chorionic Gonadotropin on Endometrial Preparation in Frozen-Thawed Embryo Transfer: A Randomized Clinical Trial. [PDF]

Int J Fertil Steril
Moridi M, Yahyaei A, Vesali S, Mashayekhi M.   +3 more
europepmc   +1 more source

Long‐read sequencing‐based atlas of tissue‐specific expression of DNM1L transcript variants

The FEBS Journal, EarlyView.
Targeted long‐read sequencing resolves full‐length DNM1L (Drp1) isoforms and reveals conserved, tissue‐specific expression patterns across human and mouse tissues. Functional assays show that Drp1 isoforms differ in their ability to drive mitochondrial fission, independent of abundance, with specific exons modulating activity.
Feng Yan, Jafar S. Jabbari, Naomi X. L. Ling, Anne M. Kong, Jia Q. Truong, Marnie L. Maddock, Ayeshah A. Rosdah, Christopher G. Langendorf, Lifang Zhang, Jarmon G. Lees, Sebastian Bass‐Stringer, Danise Ann Onda, Alice Pébay, Mirella Dottori, Kim Loh, Jessica K. Holien, Sean Lal, Nadia M. Davidson, Jonathan S. Oakhill, Shiang Y. Lim   +19 more
wiley   +1 more source