Results 91 to 100 of about 216,536 (392)

Identification of Sialyl-Lewis(x)-Interacting Protein on Human Spermatozoa

open access: yesFrontiers in Cell and Developmental Biology, 2021
Capacitated spermatozoa initiate fertilization by binding to the zona pellucida (ZP). Defective spermatozoa-ZP binding causes infertility. The sialyl-Lewis(x) (SLeX) sequence is the most abundant terminal sequence on the glycans of human ZP glycoproteins
Ying Wang   +17 more
doaj   +1 more source

Inhibition of movement of trition-demembranated sea-urchin sperm flagella by Mg2+, ATP4-, ADP and P1 [PDF]

open access: yes, 1979
Three clinical patterns of inhibition of MgATP2--activated flagellar motility have been found by measuring the motility of Triton-demembranated sea-urchin spermatozoa beating with their heads attached to a glass surface.
Brokaw, C. J., Okuno, Makoto
core  

Flagellar propulsion [PDF]

open access: yes, 2006
In this JEB Classics paper, Sir James Gray and G. J. Hancock explained how spermatozoa are propelled by flagellar bending waves (Gray and Hancock, 1955). This paper was a lasting success because it provided an easy-to-understand solution to a complicated
Brokaw, Charles J.
core   +1 more source

Cryopreservation of Murine Spermatozoa [PDF]

open access: yesILAR Journal, 2000
Cryopreservation of mouse sperm provides an economic option for preserving the large number of mouse strains now being generated by transgenic and targeted mutation methodologies. The ability of a spermatozoan cell to survive cryobiological preservation depends on general biophysical constraints that apply to all cells, such as the avoidance or ...
Critser, J K, Mobraaten, L E
openaire   +3 more sources

The ductal network in the human testis and epididymis: What belongs to which?

open access: yesClinical Anatomy, EarlyView.
Abstract The testes and epididymis are traversed by a system of tubules in which sperm cells are generated, matured, nourished, and transported. Among these are the efferent ductules, which connect the rete testis to the duct of the epididymis. In the Terminologia Anatomica (TA), the efferent ductules are assigned to the testicles, while numerous ...
Andreas Gocht   +3 more
wiley   +1 more source

Effects of Embryo Production Method and Culture Medium on Embryonic Development in Red‐Rumped Agouti

open access: yesCell Biology International, EarlyView.
ABSTRACT Advances in Assisted Reproductive Technologies (ARTs) help overcome reproductive barriers. However, a comprehensive understanding of embryonic development is crucial for their success. In vitro fertilization (IVF) and artificial oocyte activation (AOA) are embryo production methods commonly used.
Lhara Ricarliany Medeiros de Oliveira   +5 more
wiley   +1 more source

Removal of spermatozoa with externalized phosphatidylserine from sperm preparation in human assisted medical procreation: effects on viability, motility and mitochondrial membrane potential

open access: yesReproductive Biology and Endocrinology, 2009
Background Externalization of phosphatidylserine (EPS) occurs in apoptotic-like spermatozoa and could be used to remove them from sperm preparations to enhance sperm quality for assisted medical procreation.
de Agostini Ariane   +3 more
doaj   +1 more source

In-vitro application of pentoxifylline preserved ultrastructure of spermatozoa after vitrification in asthenozoospermic patients [PDF]

open access: yes, 2017
PURPOSE: To evaluate the effect of in vitro application of pentoxifylline (PX) on sperm parameters and ultrastructure after vitrification in asthenozoospermic patients. MATERIALS AND METHODS: A total of 30 asthenozoospermic semen samples (aged 25-45
Khalili, Ma   +7 more
core  

Human sperm ion channel (dys)function:implications for fertilization [PDF]

open access: yes, 2019
BACKGROUND: Intensive research on sperm ion channels has identified members of several ion channel families in both mouse and human sperm. Gene knock-out studies have unequivocally demonstrated the importance of the calcium and potassium conductances in ...
Barratt, Christopher L. R.   +3 more
core   +3 more sources

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