Human Spermatozoa Motility Movie: Difference between revisions
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| <html5media height="520" width="512">File:Spermatozoa_motility_01.mp4</html5media> | | <html5media height="520" width="512">File:Spermatozoa_motility_01.mp4</html5media> | ||
[[Media:Spermatozoa_motility_01.mp4|'''Click Here''' to play on mobile device]] | |||
| '''Human Spermatozoa Motility''' | |||
This movie shows normal human spermatozoa motility and the response to the photo-release of progesterone. | |||
Spermatozoa showing different types of responses to photorelease of progesterone, monitored at 30 frames/s. The flash for progesterone photorelease was at 5 s. | Spermatozoa showing different types of responses to photorelease of progesterone, monitored at 30 frames/s. The flash for progesterone photorelease was at 5 s. | ||
Both spermatozoa hyperactivation and the acrosome reaction are regulated by progesterone signalling, through activation of kinases present in the spermatozoa. These two processes appear to use different signalling pathways. | |||
:'''Links:''' [[Media:Spermatozoa_motility_01.mp4|MP4 version]] | | :'''Links:''' [[Media:Spermatozoa_motility_01.mp4|MP4 version]] | [[Media:Spermatozoa_motility_01.mov|Quicktime version]] | [[Spermatozoa Development]] | [[Testis Development]] | ||
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| [[File:Spermatozoa motility icon 01.jpg]] | |||
| '''Molecular''' | |||
* '''CatSper''' - cation channel of spermatozoa flagellum, calcium influx in response to progesterone through tyrosine phosphorylation mechanism. PMID 24813608 | |||
* '''Slo3''' - a potassium ion channel sets the membrane potential, in mouse allows potassium ions to leave spermatozoa and shifts the membrane voltage to more negative. | |||
** Mouse Slo3 channel opened in response to a decrease in the concentration of protons within the sperm (increase in pH). | |||
** Human Slo3 channel controlled by changes in the levels of calcium ions. PMID 24670955 | |||
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===Reference=== | ===Reference=== | ||
Revision as of 08:34, 8 July 2014
Embryology - 26 Apr 2024    Expand to Translate
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| <html5media height="520" width="512">File:Spermatozoa_motility_01.mp4</html5media> | Human Spermatozoa Motility
This movie shows normal human spermatozoa motility and the response to the photo-release of progesterone. Spermatozoa showing different types of responses to photorelease of progesterone, monitored at 30 frames/s. The flash for progesterone photorelease was at 5 s.
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Molecular
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Reference
<pubmed>22163296</pubmed>| PMC3233563 | PLoS One.
Copyright
© 2011 Armon, Eisenbach. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
