Sperm length is not influenced by haploid gene expression in the flies Drosophila melanogaster and Scathophaga stercoraria |...
... cooperation and spite at the level of individual spermatozoa (also see Parker & Begon 1993). These authors correctly point out ... It is widely held that spermatozoa are terminally differentiated cells (i.e. transcriptionally inert, Hecht 1998). Nevertheless ...http://rspb.royalsocietypublishing.org/content/early/2009/08/24/rspb.2009.1208
ICSI in vitro fertilisation, illustration - Stock Image C035/9420 - Science Photo Library
Computer illustrations showing a human egg cell (ovum, large, round) being fertilised with a sperm cell (spermatozoon, small ... Computer illustrations showing a human egg cell (ovum, large, round) being fertilised with a sperm cell (spermatozoon, small ... spermatozoon, support, technological, technology, treating Licence fees: A licence fee will be charged for any media (low or ...http://www.sciencephoto.com/media/852336/view
Effects of the Exposure to Mobile Phones on Male Reproduction: A Review of the Literature - Radiation Research
The results show that human spermatozoa exposed to RF-EMR have decreased motility, morphometric abnormalities, and increased ... one has explored the effects of RF-EMR directly on spermatozoa and the other has evaluated the sperm parameters in men using or ...http://www.radiationresearch.org/articles/effects-of-the-exposure-to-mobile-phones-on-male-reproduction-a-review-of-the-literature/
Reduced heterozygosity impairs sperm quality in endangered mammals | Biology Letters
2006), spermatozoa may be particularly susceptible to inbreeding depression because spermatogenesis relies on highly regulated ...http://rsbl.royalsocietypublishing.org/content/early/2009/02/27/rsbl.2008.0734
SirT1 is required in the male germ cell for differentiation and fecundity in mice | Development
KO spermatozoa had significantly more comet tail-positive nuclei than the control WT spermatozoa (Fig. 5D). These data indicate ... motile mature spermatozoa were obtained by allowing spermatozoa to swim out of caudal epididymal tissue for 1 h at 37°C into ... A minimum of 200 spermatozoa were counted. (D) Quantification of a comet assay on mature spermatozoa from SirT1 f/f (WT) and ... decreased spermatozoa number, an increased proportion of abnormal spermatozoa and reduced fertility. At the molecular level, ...http://dev.biologists.org/content/141/18/3495
Effects of phosphatidylserine and cholesterol liposomes on the viability, motility, and acrosomal integrity of stallion...
The percentages of viable cells and viable acrosome-reacted spermatozoa were higher for fresh spermatozoa than for ... Samples frozen in CO medium had higher percentages of motile spermatozoa than samples frozen in SMEY (P , 0.05; 63% in CO + ... Spermatozoa were pretreated with: (1) Hepes-buffered medium (SHB); (2) phosphatidylserine (PS) liposomes; or (3) liposomes ... In Experiment 2, motion parameters were compared for spermatozoa pretreated with PSCH liposomes and cryopreserved in either ...https://www.semanticscholar.org/paper/Effects-of-phosphatidylserine-and-cholesterol-lipo-Wilhelm-Graham/24169b0af8e01a38d59edd0b46fe88fab25e8999
Effects of cryopreservation on semen quality and the expression of sperm membrane hexose transporters in the spermatozoa of...
The results obtained from electron microscopy clearly showed that Iberian boar spermatozoa expressed the hexose transporters, ... Spermatozoa were assessed for plasma membrane integrity and sperm motility at each of the steps, including post-thaw (step C). ... in spermatozoa from Iberian boars. Semen samples were collected twice weekly from eight young, fertile Iberian boars of the ' ... The results showed lower percentages of progressively motile spermatozoa at step C in both breeds, while the percentage of live ...https://www.obs-gyn.ox.ac.uk/publications/512524
ON THE TERATOGENESIS OF ROUND-HEADED SPERMATOZOA - INVESTIGATIONS WITH ANTIBODIES AGAINST ACROSIN, AN INTRAACROSOMALLY LOCATED...
S. FLORKEGERLOFF, et al., "ON THE TERATOGENESIS OF ROUND-HEADED SPERMATOZOA - INVESTIGATIONS WITH ANTIBODIES AGAINST ACROSIN, ... ON THE TERATOGENESIS OF ROUND-HEADED SPERMATOZOA - INVESTIGATIONS WITH ANTIBODIES AGAINST ACROSIN, AN INTRAACROSOMALLY LOCATED ... ON THE TERATOGENESIS OF ROUND-HEADED SPERMATOZOA - INVESTIGATIONS WITH ANTIBODIES AGAINST ACROSIN, AN INTRAACROSOMALLY LOCATED ... ON THE TERATOGENESIS OF ROUND-HEADED SPERMATOZOA - INVESTIGATIONS WITH ANTIBODIES AGAINST ACROSIN, AN INTRAACROSOMALLY LOCATED ...https://pub.uni-bielefeld.de/publication/1657948
"Studies of effects of t-alleles in the house mouse on spermatozoa. I. " by D Bennett and L C. Dunn
Bennett, D and Dunn, L C., "Studies of effects of t-alleles in the house mouse on spermatozoa. I. Male sterility effects." ( ... Studies of effects of t-alleles in the house mouse on spermatozoa. I. Male sterility effects. ...https://mouseion.jax.org/ssbb1967/576/
Intracytoplasmic sperm injection with microsurgically retrieved spermatozoa in azoospermic men infected with human...
Detection of HIV-1 RNA or HCV RNA in gradient supernatants, testis tissues and final processed spermatozoa and of HIV-1 DNA in ... Gradient supernatants, testis tissues and processed spermatozoa tested HIV-1 RNA negative. HIV-1 DNA was detectable in one ... Gradient supernatants and testis tissues tested HCV RNA positive in all cases while processed spermatozoa always tested ... Density gradient and washing suppressed virus detection in final suspensions of testicular and epididymal spermatozoa. ICSI ...http://fertstertforum.com/leruez-villem-icsi-azoospermia-hiv-hcv/
Methylation status of imprinted genes 1 DLK1 GTL2 MEST PEG1 ZAC PLAGL1 and LINE 1 elements in spermatozoa of normozoospermic...
Spermatozoa of normozoospermic men in idiopathic recurrrent spontaneous miscarriage do not reveal aberrations in DNA ... Methylation status of imprinted genes 1 DLK1 GTL2 MEST PEG1 ZAC PLAGL1 and LINE 1 elements in spermatozoa of normozoospermic ... To study methylation aberrations 1 in spermatozoa at developmentally important imprinted regions to ascertain their role in ... MassARRAY and global methylation levels as measured by LINE-1 methylation and anti 5-methyl cytosine antibody in spermatozoa of ...http://fertstertforum.com/ankolkarmm-imprinting-plagl1-recurrent-spontaneous-miscarriage/
Spermiogenesis and spermatozoon of the liver fluke Mediogonimus jourdanei (Microphalloidea: Prosthogonimidae), a parasite of...
Spermatozoa. Helminthiasis. Liver diseases. Muridae. Trematoda. Ultrastructure (Biology). Rights: (c) The Academy of Sciences ... Finally, the constriction of the ring of arched membranes gives rise to the young spermatozoon. The mature sperm of M. ... Spermiogenesis and spermatozoon of the liver fluke Mediogonimus jourdanei (Microphalloidea: Prosthogonimidae), a parasite of ... Spermiogenesis and spermatozoon of the liver fluke Mediogonimus jourdanei (Microphalloidea: Prosthogonimidae), a parasite of ...http://www.recercat.cat/handle/2072/233335
Behandeling van extreme oligoasthenoteratozoospermie d.m.v. intracytoplasmatische injectie van één spermatozoön in de eicel -...
Behandeling van extreme oligoasthenoteratozoospermie d.m.v. intracytoplasmatische injectie van één spermatozoön in de eicel ...https://repository.uantwerpen.be/link/irua/9698
Spermiogenesis and ultrastructure of the spermatozoon of Wardula capitellata (Digenea, Mesometridae), an intestinal parasite of...
The mature spermatozoon of W. capitellata presents most of the classical characters reported in digenean spermatozoa such as ... Spermatozoa. Ultrastructure (Biology). Fish diseases. Intestinal diseases. Trematoda. Parasitology. Rights: (c) W. Stefanski ... Ultrastructure of the spermatozoon of the digenean Lecithocladium excisum (Rudolphi, 1819) (Hemiuroidea: Hemiuridae), a ... Ultrastructure of the spermatozoon of the digenean Lecithocladium excisum (Rudolphi, 1819) (Hemiuroidea: Hemiuridae), a ...http://www.recercat.cat/handle/2072/264739
中国科学院水生生物研究所机构知识库(IHB OpenIR): Exposure of spermatozoa to duroquinone may impair reproduction of the common carp
... can be impaired through oxidative damage of their spermatozoa. In vitro exposure of fish spermatozoa to 0, 12.5, 25, 50, 100 ... can be impaired through oxidative damage of their spermatozoa. In vitro exposure of fish spermatozoa to 0, 12.5, 25, 50, 100 ... Exposure of spermatozoa to duroquinone may impair reproduction of the common carp (Cyprinus carpio) through oxidative stress. ... Exposure of spermatozoa to duroquinone may impair reproduction of the common carp (Cyprinus carpio) through oxidative stress. ...http://ir.ihb.ac.cn/handle/152342/8994
September 18, 1880 - Scientific American
Latest news and features on science issues that matter including earth, environment, and space. Get your science news from the most trusted source!https://www.scientificamerican.com/magazine/supplements/1880/09-18/
Microorganisms | ClipArt ETC
Spermatozoa. "Types of spermatozoa. A, from the round worm (Ascaris) with a cap, somewhat amaeboid; B, from the Crayfish,… ...http://etc.usf.edu/clipart/galleries/38-microorganisms/3
Table of Contents - November 19, 1976, 194 (4267) | Science
Spermatozoa. By RYUZO YANAGIMACHI. Science. 19 Nov 1976. : 833 Full AccessRestricted Access ...http://science.sciencemag.org/content/194/4267
Marine & Aquatic Science Products - Routledge
Phylogeny, Reproductive System, Viviparity, Spermatozoa. Edited by Barrie G M Jamieson. It is perhaps because fishes live in a ...https://www.routledge.com/products/SCAG55
Nuclear morphologies: their diversity and functional relevance | Springer for Research & Development
Spermatozoa. Perhaps one of the best studied cell types with an asymmetric nuclear shape is spermatozoa. There is a dramatic ... 2005), the spermatozoa are small, highly motile and have an array of shapes. The iconic tadpole-shape is only one of many ... Mammalian spermatozoa commonly conform to the stereotypical 'tadpole' or 'paddle' shape. They possess a head partly covered by ... 2). The greater bulldog bat (Noctilio leporinus) possesses sperm described as 'unique among mammalian spermatozoa', owing to ...https://rd.springer.com/article/10.1007/s00412-016-0614-5
Glossary of Veterinary Terms | petMD
spermatozoon. The term for the male sex cell; plural form of the word is spermatozoa ...https://www.petmd.com/veterinaryterms/s
Sperm live-dead ratio | definition of sperm live-dead ratio by Medical dictionary
spermatozoon. a small, usually motile, male GAMETE. see ACROSOME.. Sperm or spermatozoa. The reproductive cell of the male, ... the normal anatomical structure of the spermatozoon. Abnormality of the structure of individual spermatozoa is used as a guide ... 2. spermatozoon.. sperm. , pl. sperms. (sperm), The male gamete or sex cell that contains the genetic information to be ... See also spermatozoon.. sperm agglutinins. anti-sperm antibodies of the IgG class occur as autoantibodies in dogs infected with ...https://medical-dictionary.thefreedictionary.com/sperm+live-dead+ratio
IP6K1 is essential for chromatoid body formation and temporal regulation of Tnp2 and Prm2 expression in mouse spermatids |...
The resuspended spermatozoa were then counted with a haemocytometer under a light microscope according to standard protocols. ... No fully mature comma-shaped spermatozoa were observed in Ip6k1−/− mice but the abnormally elongated spermatids (arrows in F) ... Epididymal spermatozoa counting. Epididymides were dissected and collected in Dulbecco's modified Eagle's medium, cut into ... Ip6k1+/+ epididymides are fully occupied by mature spermatozoa but Ip6k1−/− epididymides only contain degenerating round cells ...http://jcs.biologists.org/content/130/17/2854?ijkey=c6848ad89dfa3afdf2f93c03075e2b5d0c998e98&keytype2=tf_ipsecsha
Tyrosine phosphorylation activates surface chaperones facilitating sperm-zona recognition | Journal of Cell Science
The number of spermatozoa bound to each zona was counted using phase-contrast microscopy. In some experiments, spermatozoa were ... Preparation of spermatozoa. Spermatozoa were obtained from adult Swiss mice (age ,8 weeks; University of Newcastle Animal ... 1A). In the free-swimming population of spermatozoa just under 15% of spermatozoa displayed partial flagellum fluorescence, and ... Tyrosine phosphorylation of live spermatozoa bound to the zona pellucida (ZP). Cauda epididymal spermatozoa were capacitated ...http://jcs.biologists.org/content/117/16/3645
Human Being (Homo sapiens)
Sperm Cell (Spermatozoon) * Quick View Stem Cell (Stem cell) * Quick View White Blood Cell (Leukocyte) ...https://www.giantmicrobes.com/us/products/humanbeing.html