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*  Marine Drugs | Free Full-Text | Effect of Astaxanthin on Human Sperm Capacitation | HTML
It has been shown that the production of endogenous sperm reactive oxygen species (ROS) plays a key role in causing cells to ... Sperm cells were incubated in the presence or absence of increasing concentrations of Asta or diamide (Diam) and analyzed for ... Results show that Asta ameliorated both sperm head Tyr-P and ARC values without affecting the ROS generation curve, whereas ... human sperm must undergo a series of morphological and structural alterations, known as capacitation. ...
  http://www.mdpi.com/1660-3397/11/6/1909/htm
*  Comparative GO Graph (mouse, human, rat)
sperm midpiece. Slc26a3. IDA. Mouse. MGI:MGI:5429843,PMID:21976599. Biological Process. GO:0071320. cellular response to cAMP. ... sperm capacitation. Slc26a3. IMP. Mouse. MGI:MGI:5429843,PMID:21976599. Gene Ontology Evidence Code Abbreviations:. EXP ...
  http://www.informatics.jax.org/homology/GOGraph/55435
*  Gabarap - Gamma-aminobutyric acid receptor-associated protein precursor - Mus musculus (Mouse) - Gabarap gene & protein
sperm midpiece Source: MGIInferred from direct assayi*22033522. View the complete GO annotation on QuickGO ... ...
  https://www.uniprot.org/uniprot/Q9DCD6
*  TACR3 - Neuromedin-K receptor - Homo sapiens (Human) - TACR3 gene & protein
sperm midpiece Source: UniProtKB ,p>Inferred from Direct Assay,/p> ,p>Used to indicate a direct assay for the function, process ... positive regulation of flagellated sperm motility Source: UniProtKB ,p>Inferred from Mutant Phenotype,/p> ,p>Describes ...
  http://www.uniprot.org/uniprot/P29371
*  Tacr1 - Substance-P receptor - Rattus norvegicus (Rat) - Tacr1 gene & protein
sperm midpiece Source: GO_CentralInferred from biological aspect of ancestori*21873635 ... positive regulation of flagellated sperm motility Source: GO_CentralInferred from biological aspect of ancestori*21873635 ...
  https://www.uniprot.org/uniprot/P14600
*  Defects in Nuclear and Cytoskeletal Morphology and Mitochondrial Localization in Spermatozoa of Mice Lacking Nectin-2, a...
1990) Mitochondria-cytoskeleton interactions in the sperm midpiece. J. Struct. Biol. 103:13-22. ... The sperm remaining as a monodispersed suspension were counted by hemacytometry. The total number of sperm in the original ... For analysis of sperm DNA content, sperm were removed from the epididymides and vasa deferentia and counted with a ... Sperm fromnectin-2 −/− mice contain the same amount of DNA as wild-type sperm (Fig. 2C), indicating that they have completed ...
  https://mcb.asm.org/content/20/8/2865
*  Sperm matters
How exactly does a sperm cell meet its energy requirements? The mitochondria in the sperm midpiece churn out ATP by oxidative ... and lipidic beta oxidation may contribute to sperm motility.". Even if the sperm make it to the oocyte, the state of the sperm ... Sperm Check Fertility and Sperm Check Vasectomy, using biomarkers that are unique to the final stage of sperm development in ... Next to the head is the midpiece, which houses mitochondria. And then there's the tail, which propels the sperm to the egg. The ...
  http://www.asbmb.org/asbmbtoday/asbmbtoday_article.aspx?id=47453
*  Sperm size and energetics in passerines | Proceedings of the Royal Society of London B: Biological Sciences
Relationships between (a) midpiece size and sperm intracellular ATP concentration (nmol 10−6 sperm), and (b) sperm ... of the regression of path length on each trait value for both sperm size (i.e. midpiece length, total sperm length) and sperm ... 2010 Sperm midpiece length predicts sperm swimming velocity in house mice. Biol. Lett. 6, 513-516. doi:10.1098/rsbl.2009.1027 ( ... 2007 Sperm competition and sperm midpiece size: no consistent pattern in passerine birds. Proc. R. Soc. B 274, 561-568. doi: ...
  http://rspb.royalsocietypublishing.org/content/280/1753/20122616
*  Produktübersicht anti-Adenylate Kinase 2 Antikörper
Ak2 protein was localized to the mitochondrial sheath in the sperm midpiece. ... AK2 in the flagellar accessory structures provides a mechanism to buffer the adenylate energy charge for sperm motility. ... and mitochondrial sheath of the mouse sperm tail, we show that another AK, AK8 (zeige AK8 Antikörper), is present in a third ...
  https://www.antikoerper-online.de/nucleotide-phosphorylation-pathway-31/adenylate-kinase-2-antibody-5748/
*  Bjørn Steen Skålhegg - Institutt for medisinske basalfag
A novel isoform of human cAMP-dependent protein kinase, CαS, localized to sperm midpiece. Reinton, N., Ørstavik., S., Haugen, T ... localized to sperm midpiece. Biology of Reproduction. ISSN 0006-3363. 63, s 607- 611 ... Mutation of the Calpha Subunit of PKA Leads to Growth Retardation and Sperm Dysfunction. Skålhegg, B.S., Huang, Y., Su, T., ... Structure and function of the human sperm-specific isoform of protein kinase A (PKA) catalytic subunit C alpha 2. Journal of ...
  https://www.med.uio.no/imb/personer/vit/bjoerns/index.html
*  TMT Publications | Thermo Fisher Scientific - CA
2016) The genetic basis and fitness consequences of sperm midpiece size in deer mice. Nat Commun Dec 2 ePub:7:13652. ... 2014) Identification of Proteins Involved in Human Sperm Motility Using High-Throughput Differential Proteomics. J Proteome Res ... 2014) Structurally Distinct Ca2+ Signaling Domains of Sperm Flagella Orchestrate Tyrosine Phosphorylation and Motility. Cell ... 2014) High-throughput sperm differential proteomics suggests that epigenetic alterations contribute to failed assisted ...
  https://www.thermofisher.com/ca/en/home/life-science/protein-biology/protein-mass-spectrometry-analysis/protein-quantitation-mass-spectrometry/tandem-mass-tag-systems/TMT-publications.html
*  Hopi Hoekstra - Harvard University - Department of Molecular & Cellular Biology
The genetic basis and fitness consequences of sperm midpiece size in deer mice. Nature Communications 7:13652. ... 2010 Competition drives cooperation among closely-related sperm of deer mice. Nature 463:801-803. ...
  https://www.mcb.harvard.edu/directory/hopi-hoekstra/?referral=mco-profiles
*  Molecular Markers in Sperm Analysis | IntechOpen
Molecular Markers in Sperm Analysis , IntechOpen, Published on: 2013-01-09. Authors: Rita Payan-Carreira, Paulo Borges, ... Sperm immunoreactions against TNF. In canine spermatozoa, strong immunolabelling for TNF was found in sperm mid-piece, in the ... Figure 6. Sperm immunoreactions against TNF. In canine spermatozoa, strong immunolabelling for TNF was found in sperm mid-piece ... Two sperm populations may be found under a fluorescent microscope: sperm with intact membranes devoid of fluorescence and sperm ...
  https://www.intechopen.com/books/success-in-artificial-insemination-quality-of-semen-and-diagnostics-employed/molecular-markers-in-sperm-analysis/
*  Spef2 - Sperm flagellar protein 2 - Mus musculus (Mouse) - Spef2 gene & protein
Important for normal development of the manchette and sperm head morphology (PubMed:28619825). Essential for male fertility ( ... expression in the sperm tail reduces and becomes concentrated at the distal part of the midpiece (PubMed:19889948). Detected in ... Localizes to the midpiece of the sperm tail in step 15-16 spermatids (PubMed:19889948). During the epididymal transport of ... sp,Q8C9J3,SPEF2_MOUSE Sperm flagellar protein 2 OS=Mus musculus OX=10090 GN=Spef2 PE=1 SV=3 ...
  https://www.uniprot.org/uniprot/Q8C9J3
*  Protocols and Video Articles Authored by Marten Michaelis (Translated to Norwegian)
GPX4 becomes a structural component of sperm midpiece during sperm maturation, and its expression correlates to semen quality. ... but correlated positively to sperm density and fraction of vital sperm. SePP concentrations in seminal plasma of vasectomized ... Selenoprotein P in Seminal Fluid is a Novel Biomarker of Sperm Quality Biochemical and Biophysical Research Communications. Jan ... Semen quality was assessed by sperm density, morphology and motility. SePP was measured by an immunoluminometric assay, and ...
  https://www.jove.com/author/Marten_Michaelis?language=Norwegian
*  JCI - Gpx5 protects the family jewels
... sperm midpiece) but lacking in functional competence. The potential to express movement and fertilize the oocyte is acquired ... sperm-oocyte fusion. Throughout their maturation in the epididymis, the spermatozoa exist as isolated cells that are vulnerable ...
  https://www.jci.org/articles/view/39688/figure/1
*  Aperçu des produits pour ACO2 kit ELISA
immunofluorescence staining localized ACO2 to the human sperm mid-piece. By immunoblotting, we demonstrated that the level of ...
  https://www.anticorps-enligne.fr/abstract/Aconitase+2%2C+Mitochondrial+
*  Sperm speed gene improves reproduction | Nature | The Earth Times
Could humans benefit from a gene that speeds up the sperm as it swims? In a deer mouse, it works wonders for up to 14 litters ... entitled The genetic basis and fitness consequences of sperm midpiece size in deer mice. ... How does the sperm manage to go faster? Once it gets to the egg using chemotaxis (as here in the externally fertilised mussel,) ... The gene PrKar1a codes for a protein used in the sperm mid-section, and is also found in the human genome. With the gene ...
  http://www.earthtimes.org/nature/sperm-speed-gene-reproduction/2977/
*  Why is the sperm cell packed with a large amount of mitochondria? | eNotes
Why is the sperm cell packed with a large amount of mitochondria?' and find homework help for other Science questions at eNotes ... The sperm's midpiece contains many mitochondria so that a supply of energy is available for the sperm to perform its function ... There is a region that contains enzymes to help the sperm cell penetrate the surface of the egg. The midpiece contains multiple ... The sperm cell must be propelled to the egg cell so that fertilization can occur. For organisms that live in water, the sperm ...
  https://www.enotes.com/homework-help/why-sperm-cell-packed-large-amount-mitochondria-489708
*  Use of laser tweezers to analyze sperm motility and mitochondrial membrane potential
... that reports the MP across the inner membrane of the mitochondria located in the sperm's midpiece. Individual sperm are tracked ... Pesc is measured by reducing the laser power after the sperm is trapped using laser tweezers until the sperm is capable of ... of individual sperm. Domestic dog sperm are labeled with a cationic fluorescent probe, DiOC2(3), ... The effect of the fluorescent probe on sperm motility is addressed. The sensitivity of the probe is measured by assessing the ...
  https://www.spiedigitallibrary.org/journals/Journal-of-Biomedical-Optics/volume-13/issue-1/014002/Use-of-laser-tweezers-to-analyze-sperm-motility-and-mitochondrial/10.1117/1.2839051.short
*  Volume 17 Issue 2 | Journal of Biomedical Optics
... to measure membrane potentials of mitochondria in the sperm midpiece. Fluorescence intensity was measured before and during ... In order to study sperm energetics under different viscous conditions sperm were labeled with the fluorescent dye DiOC6(3) ... The Pesc was measured by using a 1064 nm Nd:YVO4 continuous wave laser that optically traps motile sperm at a power of 450 mW ... Effects of viscosity on sperm motility studied with optical tweezers Nicholas Hyun, Charlie Chandsawangbhuwana, Collin Yang- ...
  https://www.spiedigitallibrary.org/journals/journal-of-biomedical-optics/volume-17/issue-02
*  Sperm - Wikipedia
This takes place in the mitochondria located in the sperm's midpiece (at the base of the sperm head). These cells cannot swim ... Mendelian inheritance Ejaculation Female sperm Female sperm storage Polyspermy Sperm competition Sperm donation Sperm granuloma ... Related to sperm quality is sperm size, at least in some animals. For instance, the sperm of some species of fruit fly ( ... Most sperm cells have centrioles in the sperm neck. Sperm of many animals has 2 centrioles known as the proximal centriole and ...
  https://en.wikipedia.org/wiki/Sperm
*  Evolution and spermatogenesis | Philosophical Transactions of the Royal Society B: Biological Sciences
b) Flagellate sperm. The basic plan for flagellate sperm consists of head, midpiece and tail, or flagellum, which provides ... 2002 Sperm competition: motility and the midpiece in primates. Nature 2002, 496. (doi:10.1038/416496a). ... 2006 Sperm activation: time and tide wait for no sperm. Curr. Biol. 16, R160-R162. (doi:10.1016/j.cub.2006.02.039). ... 1993 Sperm competition games: sperm size and number under gametic control. Proc. R. Soc. Lond. B 253, 255-262. (doi:10.1098/ ...
  http://rstb.royalsocietypublishing.org/content/365/1546/1465
*  Testing a post-copulatory pre-zygotic reproductive barrier in a passerine species pair | SpringerLink
Immler S, Birkhead TR (2007) Sperm competition and sperm midpiece size: no consistent pattern in passerine birds. Proc R Soc ... Comparative evidence for the evolution of sperm swimming speed by sperm competition and female sperm storage duration in ... Overall, however, sperm performed equally in conspecific and heterospecific female fluids, and the species had similar sperm ... Lüpold S, Calhim S, Immler S, Birkhead TR (2009) Sperm morphology and sperm velocity in passerine birds. Proc R Soc Lond B 276: ...
  https://link.springer.com/article/10.1007%2Fs00265-014-1724-9
*  Poccia Research Lab
Pinto-Correia, C., Poccia, D.L., Chang,T. and Robl, J.M. (1994). Dephosphorylation of Sperm Midpiece Antigens Initiates Aster ... Collas, P. and Poccia, D.L. (1996). Conserved Binding Recognition Elements of Sperm Chromatin, Sperm Lipophilic Structures and ... During maturation of most animal sperm cells, sperm-specific nuclear proteins replace somatic histones, DNA synthesis, RNA ... D. and Collas, P. (1996). Transforming Sperm Nuclei into Male Pronuclei In Vivo and In Vitro. Curr. Topics Develop. Biol.34: 25 ...
  https://dlpoccia.people.amherst.edu/res.html