*  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
*  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
*  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
*  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/
*  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
*  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
*  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
*  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
*  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
*  Laboratory Primate Newsletter, Volume 41, Number 3
Sperm competition: Motility and the midpiece in primates. Anderson, M. J., & Dixson, A. F. (San Diego Zoo, P.O. Box 120551, San ... Live sperm. Stir -- Tryp. % Abnormal. sperm. Stir -- Tryp. AD. Mean. 32.1 -- 39.8. 6.3 -- 11.3. 10.1 -- 44.1. 2.5 -- 3.6. 83.8 ... Here it is shown that the volume of the midpiece in individual sperm is significantly greater in primate species in which the ... It most surely serves to prevent backflow of sperm and to obstruct sperm transport of another male (Dixson, 1998). Nonetheless ...
  http://www.brown.edu/Research/Primate/lpn41-3.html
*  Pathology Associates Of Lexington, P.A.
Analysis of the sperm midpiece and tail is not included in the program. The system detects the boundary of the sperm head and ... No abnormalities of the neck, midpiece or tail and no cytoplasmic droplets of more than half of the sperm head are accepted. ... severely amorphous, referred to those sperms with a bended neck or midpiece of more than 30%, or a severely amorphous head ... Neck, midpiece or tail defects are considered abnormal. The midpiece lenght is 1,5 times the head lenght, the width is less ...
  http://palpath.com/MedicalTestPages/spermmorph.htm
*  Publications | Hoekstra Lab
We find that the promiscuous species produces sperm with longer midpiece than the monogamous species, and midpiece size ... R1a localizes to midpiece in Peromyscus and is differentially expressed in mature sperm of the two species yet is similarly ... The genetic basis and fitness consequences of sperm midpiece size in deer mice. Nature Communications 2016;7:13652.Abstract. ... Sperm cooperation has evolved in a variety of taxa and is often considered a response to sperm competition, yet the benefit of ...
  https://hoekstra.oeb.harvard.edu/publications
*  Pask - PAS domain-containing serine/threonine-protein kinase - Mus musculus (Mouse) - Pask gene & protein
Note: Localizes in the nucleus of testis germ cells and in the midpiece of sperm tails.By similarity ... Fertility and sperm production and motility are not affected in males. Under high-fat diet, mice seem to be protected from ...
  http://www.uniprot.org/uniprot/Q8CEE6
*  Determination of Testicular Blood Flow in Camelids Using Vascular Casting and Color Pulsed-Wave Doppler Ultrasonography
These abnormalities include variable sperm head sizes and sperm head and midpiece vacuolar defects [7]. In cattle, swine, and ... However in many cases, samples collected using these methods contain no sperm (aspermic) because the male could not penetrate ... Several investigations in humans have demonstrated an association between testicular blood flow and sperm quality [31-34] and ... and nonobstructive sperm extraction from patients with obstructive and nonobstructive azoospermia," Fertility and Sterility, ...
  https://www.hindawi.com/journals/vmi/2011/638602/
*  The Road to Truth - Sexual Selection - Mitch Medical Healthcare
Human sperm have small midpieces, and this indicates that sperm competition is unlikely to have played a significant role in ... Sperm competition has favoured the evolution of larger sperm midpiece volumes in mammals (Anderson and Dixson 2002; Anderson et ... in order to enhance the energy production required for sperm motility. Relative testes sizes and sperm midpiece volumes are ... The sperm midpiece is not only much larger in chimpanzees than in human males, but it also contains a larger volume of ...
  https://www.mitchmedical.us/sexual-selection/the-road-to-truth.html
*  Histology: Reproduction Flashcards - Cram.com
microtubule arrangement in sperm flagellum midpiece 9+2 microtubules, 9 outer dense fibers, mitochondria ...
  http://www.cram.com/flashcards/histology-reproduction-485653
*  Sperm on nosmut(dot)com, the siev
This takes place in the mitochondria located in the sperm's midpiece (at the base of the sperm head). These cells cannot swim ... Market for human sperm. Some sperm banks hold up to of sperm. In addition to ejaculation, it is possible to extract sperm ... Sperm size Related to sperm quality is sperm size, at least in some animals. For instance, the sperm of some species of fruit ... Semen and sperm quality Sperm cells are carried out of the male body in a fluid known as semen. Human sperm cells can survive ...
  http://www.nosmut.com/Sperm.html
*  Sexual selection in scaled reptiles - Wikipedia
Oviparous species show relatively larger testes and sperm midpiece length than viviparous species because oviparous species ... Females store sperm after sexual intercourse from multiple males before ovulation, but how sperm is stored is still unknown. ... The most competitive sperm will fertilize the female's eggs while the remaining sperm will be discarded. Females also gain ... Females produce sons with sperm from larger sires, and daughters from sperm with smaller sires. A reason would be to ensure ...
  https://en.wikipedia.org/wiki/Sexual_selection_in_scaled_reptiles
*  Efecto de la adición de plasma seminal, vitamina E y tiempo de incubación en la viabilidad post-congelamiento del esperma en...
... fresh semen the evaluation of mitochondrial activity is an objective way to quantify the amount of damage on the sperm midpiece ... Effect of the addition of seminal plasma, vitamin E and incubation time on post-thawed sperm viability in boar semen ... which decreases sperm viability. Similarly there is a reduction in motility and sperm fertility associated with an excessive ... The sperm morphology was determined by placing a drop of semen in a solution of 1% formaldehyde, using the technique of Pursel ...
  http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1870-04622011000300019&lng=es&nrm=iso
*  List of MeSH codes (A11) - Wikipedia
... sperm head MeSH A11.497.760.400.100 - acrosome MeSH A11.497.760.450 - sperm midpiece MeSH A11.497.760.500 - sperm tail MeSH ... sperm tail MeSH A11.284.180.565 - microvilli MeSH A11.284.180.610 - neurites MeSH A11.284.180.610.345 - growth cones MeSH ...
  https://en.wikipedia.org/wiki/List_of_MeSH_codes_(A11)
*  Bipedalism - Wikipedia
... and low sperm competition (moderate sized testes, low sperm mid-piece volume) that argues against recent adaptation to a ...
  https://en.wikipedia.org/wiki/Bipedalism