Results 21 to 30 of about 138,467 (157)
Collective dynamics of sperm cells
Philosophical Transactions of the Royal Society B: Biological Sciences, 2020 While only a single sperm may fertilize the egg, getting to the egg can be facilitated, and possibly enhanced, by sperm group dynamics. Examples range from the trains formed by wood mouse sperm to the bundles exhibited by echidna sperm. In addition, observations of wave-like patterns exhibited by ram semen are used to score prospective sample fertility
Simon F. Schoeller +2 more
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Hydrodynamics of Sperm Cells near Surfaces [PDF]
Biophysical Journal, 2010 Sperm are propelled by an actively beating tail, and display a wide variety of swimming patterns. When confined between two parallel walls, sperm swim either in circles or on curvilinear trajectories close to the walls. We employ mesoscale hydrodynamics simulations in combination with a mechanical sperm model to study the swimming behavior near walls ...
Elgeti, J., Kaupp, U., Gompper, G.
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Use of FTA® classic cards for epigenetic analysis of sperm DNA
BioTechniques, 2018 FTA® technologies provide the most reliable method for DNA extraction. Although FTA technologies have been widely used for genetic analysis, there is no literature on their use for epigenetic analysis yet.
Olga Serra +4 more
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Isolating Sperm from Cell Mixtures Using Magnetic Beads Coupled with an Anti-PH-20 Antibody for Forensic DNA Analysis. [PDF]
PLoS ONE, 2016 Vaginal swabs taken in rape cases usually contain epithelial cells from the victim and sperm from the assailant and forensic DNA analysis requires separation of sperm from these cell mixtures.
Xing-Chun Zhao +5 more
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Comparative Transcriptomics of Arabidopsis Sperm Cells [PDF]
Plant Physiology, 2008 AbstractIn flowering plants, the two sperm cells are embedded within the cytoplasm of the growing pollen tube and as such are passively transported to the embryo sac, wherein double fertilization occurs upon their release. Understanding the mechanisms and conditions by which male gametes mature and take part in fertilization are crucial goals in the ...
de Sousa Borges, Filipe +6 more
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Animals, 2022 The roughscale sole, Clidoderma asperrimum is categorized as an endangered species. Sperm freezing is essential for preserving gametes. This study examined the CPA concentration, diluent, dilution ratio, and thawing temperature to design a sperm ...
Irfan Zidni +7 more
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TRPV4 is the temperature-sensitive ion channel of human sperm
eLife, 2018 Ion channels control the ability of human sperm to fertilize the egg by triggering hyperactivated motility, which is regulated by membrane potential, intracellular pH, and cytosolic calcium.
Nadine Mundt +2 more
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Sperm dynamics in spiders (Araneae): ultrastructural analysis of the sperm activation process in the garden spider Argiope bruennichi (Scopoli, 1772). [PDF]
PLoS ONE, 2013 Storage of sperm inside the female genital tract is an integral phase of reproduction in many animal species. The sperm storage site constitutes the arena for sperm activation, sperm competition and female sperm choice. Consequently, to understand animal
Oliver Vöcking +2 more
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Journal of Human Reproductive Sciences, 2021 Background: One of the causes of male fertility disorders is the exposure of oxidative stress on the human sperm. Understanding the mechanism of disturbance is important to develop a better treatment for infertile or subfertile patients. Aims: The aim of
Dwi Ari Pujianto +3 more
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Fertility & Reproduction, 2022 Background: Intracytoplasmic sperm injection (ICSI) usage ([Formula: see text]64% of autologous cycles) has increased in Australia as an attempt to avoid low fertilisation and total fertilisation failure after standard in vitro fertilization (IVF).
Nicole O. MCPHERSON +4 more
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