Results 161 to 170 of about 133,635 (289)

Uptake Assay of Ram Seminal Plasma Extracellular Vesicles to Sperm. [PDF]

Bio Protoc
Armani T, Nicolli AR, Zalazar L, Lobo JI, Arellano MB, Hozbor FA, Rio S, Martinez SP, Cesari A.   +8 more
europepmc   +1 more source

Limited Utility of a Test‐Yolk Buffer Semen Extender for Preserving Human Semen Parameters for Use in a Diagnostic Setting

Andrology, EarlyView.
ABSTRACT Background Identification of a preservation medium that accurately retains semen parameters would be advantageous for men requiring semen analysis by allowing them to produce sperm samples at home rather than on site or even facilitate ‘mail order’ semen analysis.
Alessia Schadwell, Andrew Dawkins, Tina Holton, Olivia Whiting, Peter J. I. Ellis, Sheryl T. Homa   +5 more
wiley   +1 more source

Large cyclic AMP-dependent increases in tyrosine-phosphorylated proteins are not absolutely necessary for the induction of full-type hyperactivation and penetration into eggs in ejaculated boar spermatozoa in vitro. [PDF]

J Reprod Dev
Ueshiba A, Nakao R, Morikawa-Tomita R, Kyogoku H, Harayama H.   +4 more
europepmc   +1 more source

Computer‐Assisted Sperm Analysis (CASA) Versus Manual Evaluation and the Clinical Significance of Sperm Hyperactivated Motility

Andrology, EarlyView.
Abstract Background Semen analysis remains the first‐line diagnostic test for male infertility, although it is affected by operator subjectivity. Computer‐assisted sperm analysis (CASA) is proposed to improve objectivity; however, its accuracy and clinical relevance remain uncertain.
Maria Emanuela Ragosta, Giulia Traini, Francesca Benini, Margherita Montereggi, Federica Bini, Lara Tamburrino, Linda Vignozzi, Elisabetta Baldi, Sara Marchiani   +8 more
wiley   +1 more source

Doublet microtubule-associated tektins and enzymes differentially regulate sperm flagellar integrity and motility. [PDF]

Nat Commun
Liu Q, Zhou L, Liang X, Chen P, Li B, Yang S, Liu Y, Zhao H, Hu J, Feng S, Xie S, Wu J, Gui M.   +12 more
europepmc   +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

Progressive Spermatozoa to Total Spermatozoa Ratio Measurement [PDF]

, 2020
openaire   +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

Preliminary insights into intratesticular and intraepididymal administration of eugenol: histological alterations and impact on sperm motility in Wistar rats. [PDF]

Anim Reprod
Carvalho RPR, Ribeiro IM, Ramirez-Lopez C, da Silva TB, de Sousa AFR, de Azevedo Viana AG, de Medeiros V, Trindade ACM, Ferreira TRM, Ervilha LOG, Machado-Neves M.   +10 more
europepmc   +1 more source

Multiparasitism Resolves the Apparent Paradox of High Male Pheromone Investment Despite Frequent Within‐Host Mating in a Parasitoid

Entomologia Experimentalis et Applicata, EarlyView.
It is unknown why males of the parasitoid wasp Nasonia giraulti produce large amounts of a costly sex pheromone although they were long thought to mate with their females already before emergence within the host. Mated females do no longer respond to the pheromone.
Martina Wendler, Verena Engl, Joachim Ruther   +2 more
wiley   +1 more source