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
Marine Drugs | Free Full-Text | Effect of Astaxanthin on Human Sperm Capacitation | HTML
Aitken, R.J.; Buckingham, D.W.; West, K.M. Reactive oxygen species and human spermatozoa analysis of the cellular mechanisms ... De Lamirande, E.; Leclerc, P.; Gagnon, C. Capacitation as a regulatory event that primes spermatozoa for the acrosome reaction ... apoptosis and DNA denaturation in spermatozoa from patients examined for infertility. Hum. Reprod. 2004, 19, 129-138. [Google ... A novel signal transduction cascade in capacitating human spermatozoa characterised by a redox-regulated, cAMP-mediated ...http://www.mdpi.com/1660-3397/11/6/1909/htm
Novel function of β-arrestin2 in the nucleus of mature spermatozoa | Journal of Cell Science
2B). Translocation was also detected by western blotting of fractionated human spermatozoa. In untreated spermatozoa, β- ... colocalize in the midpiece of mature human spermatozoa. Stimulation of hOR17-4 in spermatozoa induced PKA-dependent ... Novel function of β-arrestin2 in the nucleus of mature spermatozoa Message Subject (Your Name) has sent you a message from ... Novel function of β-arrestin2 in the nucleus of mature spermatozoa. Eva M. Neuhaus, Anastasia Mashukova, Jon Barbour, Dirk ...http://jcs.biologists.org/content/119/15/3047
Antifertility Effect of Passive Administration of Antibodies to 80kDa Human Sperm Antigen and its Synthetic Peptides in Male...
The presence of agglutinated spermatozoa was observed in the post-coital vaginal smears of these animals. The immunized females ... 2 and 4 resulted in agglutination of epididymal spermatozoa with loss of motility but had no effect on sperm count or weights ...http://onlinelibrary.wiley.com/doi/10.1111/j.1600-0897.2005.00309.x/full
SPAG4 - Sperm-associated antigen 4 protein - Homo sapiens (Human) - SPAG4 gene & protein
Expressed in ejaculated spermatozoa (at protein level).1 Publication. ,p>Manually curated information for which there is ... at sperm neck in elongated spermatids and at midpiece regions in ejaculated spermatozoa (PubMed:25775403).By similarity. ,p> ...http://www.uniprot.org/uniprot/Q9NPE6
How does sexual selection shape sperm form and function? - NERC DTP - Matthew Gage - UEA
Despite this uniform function, spermatozoa are the most diverse and complex eukaryotic cells known. Even simple size can vary ...https://www.uea.ac.uk/biological-sciences/phd-research-degrees/nerc-dtp-opportunities/how-does-sexual-selection-shape-sperm-form-and-function-gage_ubio16ee-
A Preliminary Study on Effect of Omega-3 on Human Sperm - Full Text View - ClinicalTrials.gov
Experimental methodology: 1) Characterize fatty acid composition of the spermatozoa of normal and abnormal spermatozoa by gas ... The phospholipids of mammalian spermatozoa possess a distinctive fatty acid composition with high proportion of long chain ...https://clinicaltrials.gov/ct2/show/NCT00479960?recr=Open&cond=%22Oligospermia%22&rank=2
Effect of ejaculation frequency on spermatozoa survival in diluted semen from Pleven Blackhead rams
The spermatozoa in a 2nd ejaculate showed higher survival rates and could be recommended for additional processing. ... The effect of ejaculation frequency on spermatozoa survival in diluted Pleven Blackhead ram semen was investigated. Thirty-two ... Home » Effect of ejaculation frequency on spermatozoa survival in diluted semen from Pleven Blackhead rams ... Effect of ejaculation frequency on spermatozoa survival in diluted semen from Pleven Blackhead rams. ...http://connection.ebscohost.com/c/articles/65053957/effect-ejaculation-frequency-spermatozoa-survival-diluted-semen-from-pleven-blackhead-rams
In Vitro Function of Frozen-Thawed Bottlenose Dolphin (Tursiops truncatus) Spermatozoa Undergoing Sorting and Recyopreservation
After recryopreservation, viability of sorted spermatozoa was higher (P , 0.05) than that of non-sorted spermatozoa across all ... Although one bottlenose dolphin calf has been born using spermatozoa from frozen-thawed, sorted and recryopreserved spermatozoa ... Quality of sperm DNA of nonsorted spermatozoa, as assessed by the SCSA, remained unchanged throughout the process. However, a ... Montano Pedroso, Gisele 1981- (2010). In Vitro Function of Frozen-Thawed Bottlenose Dolphin (Tursiops truncatus) Spermatozoa ...http://oaktrust.library.tamu.edu/handle/1969.1/148447
Why so many mammalian spermatozoa - a clue from marsupials? | Proceedings of the Royal Society of London B: Biological Sciences
The spermatozoa of dasyurids are not paired, but the species examined possess distinctive sperm storage crypts in the oviducal ... Why so many mammalian spermatozoa - a clue from marsupials? Message Subject (Your Name) has sent you a message from Proceedings ... Why so many mammalian spermatozoa - a clue from marsupials?. J. M. Bedford, J. C. Rodger, W. G. Breed ... Secondly, spermatozoa are housed in special crypts in the isthmus of the oviduct. Australian marsupials, which usually lack ...http://rspb.royalsocietypublishing.org/content/221/1223/221
The Vanguard Sperm Cohort of the Boar Ejaculate is Overrepresented in the Tubal Sperm Reservoir In Vivo
Spermatozoa from P1- and of P2- (last portion of the SRF and the Post-SRF) were collected from 3 fertile boars. PI-spermatozoa ... P1-spermatozoa, Pless than0.05) or P1 and P2 sperm Suspensions were mixed (control, 36.9 +/- 2.70% P1-spermatozoa, Pless ... Sows were euthanized approx 3 h post-AI, and the SRs were flushed to recover the spermatozoa, which were accounted for as ... The total number of spermatozoa flushed did not differ between groups or boars (NS, ranging 0.9 to 2.0 x 10(9)). Sequential, in ...http://liu.diva-portal.org/smash/record.jsf?pid=diva2:666646
KAKEN - Research Projects | Bulk collection of epididymal tail spermatozoa by means of electric stimulation (KAKENHI-PROJECT...
In the condition of low ionic strength, 50% of motile spermatozoa lose motility in the high electric gradient about 160V/2mm. ... In the high ionic strength, spermatozoa lose motility even in low electric gradient but this takes places only near electrode. ... In men with obstructive diseases of the vas deferens, the epididymal spermatozoa could be collected by means of electric ... Publications] Kawakami et al: 'Bulk collection of epididymal tail spermatozoa by means of electric stimulation in rats' Jpn J ...https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04670973/
Detection of heterozygous mutation in hook microtubule-tethering protein 1 in three patients with decapitated and decaudated...
Although few dysfunctional proteins could result in abnormal junction between the head and tail of spermatozoon, little is ... Objective Based on patients with severe decapitated and decaudated spermatozoa (DDS) syndrome, the study aimed to validate ... of heterozygous mutation in hook microtubule-tethering protein 1 in three patients with decapitated and decaudated spermatozoa ... of heterozygous mutation in hook microtubule-tethering protein 1 in three patients with decapitated and decaudated spermatozoa ...http://jmg.bmj.com/content/early/2018/01/12/jmedgenet-2016-104404
Presence of HIV-1 DNA in Spermatozoa from HIV-Positive Patients: Changes in the Semen Parameters | BenthamScience
Yet, the presence of HIV in spermatozoa has been a matter of debate. The aim of this study was to evaluate the presence of HIV ... Yet, the presence of HIV in spermatozoa has been a matter of debate. The aim of this study was to evaluate the presence of HIV ... Presence of HIV-1 DNA in Spermatozoa from HIV-Positive Patients: Changes in the Semen Parameters. Author(s): Walter Cardona- ... Title: Presence of HIV-1 DNA in Spermatozoa from HIV-Positive Patients: Changes in the Semen Parameters ...http://www.eurekaselect.com/93361/article
Lipid peroxidation, assessed with BODIPY-C-11, increases after cryopreservation of stallion spermatozoa, is stallion-dependent...
The level of LPO in fresh spermatozoa was not correlated with that of the thawed spermatozoa. Negative correlations existed ... Innate levels of LPO were very low in fresh spermatozoa but increased after thawing, a change that was largely stallion- ... Lipid peroxidation (LPO) of stallion spermatozoa was assessed in fresh semen and in samples of the same ejaculates after ... Lipid peroxidation, assessed with BODIPY-C-11, increases after cryopreservation of stallion spermatozoa, is stallion-dependent ...http://liu.diva-portal.org/smash/record.jsf?pid=diva2:666657
Spermatozoa - Human Anatomy
How is spermatozoa formed?. There are several gonadal hormones involved in spermatogenesis or the formation of spermatozoa. The ... The mature spermatozoa are then delivered to the urethra by the vas deferens. On its way to the urethral opening, fluids from ... This true male gonadal hormone then stimulates spermatogenesis or the formation of spermatozoa or sperm cells in the testes. ... Without proper formation of the spermatozoa, the reproductive organ will not be able to perform its functions. ...http://medicalterms.info/anatomy/Spermatozoa/
Category:Spermatozoa - Embryology
spermatozoon - singular form of of spermatozoa.. * sperm protein 56 - A component of the spermatozoa acrosomal matrix released ... spermatozoa tail - Following spermiogenesis, the third region of the spermatozoa that has a head, neck and tail). The tail is ... The human spermatozoa is about 60 µm long, actively motile and divided into 3 main regions (head, neck and spermatozoa tail). ... spermatozoa head - Following spermiogenesis, the first region of the spermatozoa containing the haploid nucleus and acrosome. ...https://embryology.med.unsw.edu.au/embryology/index.php/Category:Spermatozoa
Gene expression and protein levels of GnRH isoforms and their cognate receptors in the stallion testis and spermatozoa
... K-REx ... Gene expression and protein levels of GnRH isoforms and their cognate receptors in the stallion testis and spermatozoa. Douthit ... By utilizing immunocytochemistry, GnRHR-II was localized to the connecting piece of mature stallion spermatozoa. This is the ... first report identifying GnRH-I and -II and their receptors in the equine testis and GnRHR-II on mature stallion spermatozoa. ...http://krex.k-state.edu/dspace/handle/2097/27630
KAKEN - Research Projects | Analysis of flagellar movement of golden hamster spermatozoa by measuring sliding between outer...
... of golden hamster spermatozoa is perhaps different from that of sea urchin spermatozoa.. 2. When the demembranated spermatozoa ... The direction of rolling motion of a spermatozoon about its long axis and of yawing motion of spermatozoa under the coverslip ... In contrast to the sea urchin spermatozoa, the majority of intact golden hamster spermatozoa rolled counterclockwise when ... which is demembranated spermatozoa showing the flagellar movement similar to that of intact spermatozoa when activated with ...https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02640551/
KAKEN - Research Projects | Analysis of the X and Y Chromosomes in Human Spermatozoa Prepared by Swim-up and Percoll Technique ...
Analysis of the X and Y Chromosomes in Human Spermatozoa Prepared by Swim-up and Percoll Technique. Research Project ... Publications] Ping Li,Hiroshi Hoshiai;: 'Detection of Numerical Chromosome Abnormalities in Human Spermatozoa by Three-Color ... Publications] Ping Li, Hiroshi Hoshiai: 'Detection of Numerical Chromosome Abnormalities in Human Spermatozoa by Three-Color ... Publications] Ping Li,Hiroshi Hoshiai: 'Detection of Numerical Chromosome Abnormalities in Human Spermatozoa by Three-Color ...https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10671578/
Labelling of membrane glycoproteins on rat spermatozoa collect...
Labelling of membrane glycoproteins on rat spermatozoa collected from different regions of the epididymis.: The major ... Labelling of membrane glycoproteins on rat spermatozoa collected from different regions of the epididymis.. Authors * Jones, R ... As spermatozoa pass through the epididymis, labelling of this glycoprotein disappears and is replaced by labelling of a 32 000- ... The evidence suggests that it is inserted into or absorbed on to the plasma membrane, and since its appearance on spermatozoa ...https://www.mysciencework.com/publication/show/labelling-membrane-glycoproteins-rat-spermatozoa-collected-from-different-regions-epididymis-2d996897
Project: Investigation of genetic defects, cytokines in semen, the lipid composition and receptor expression of human...
Also, the functional as well as fertilising capacity of spermatozoa will be assessed, and genetic defects of the Y-chromosome ... the lipid composition and receptor expression of human spermatozoa and their functional quality.. project duration. 01-JAN-96 ...https://biblio.ugent.be/project/3G006596
Lirias: Application of the Fertilase-laser system versus the conventional mechanical method to immobilize spermatozoa for...
Metaphase II oocytes were injected with spermatozoa that were immobilized with the conventional mechanical method (group A, n= ... Application of the Fertilase-laser system versus the conventional mechanical method to immobilize spermatozoa for ... of oocytes injected with spermatozoa that were immobilized with the Fertilase-laser system technology compared to spermatozoa ... after immobilization of the spermatozoa with the Fertilase-laser system technology than after immobilization of the spermatozoa ...https://lirias.kuleuven.be/handle/123456789/20919
Antioxidant therapy mitigates summer-induced DNA damage in boar spermatozoa - ResearchOnline@JCU
84 days during summer did not affect motility of spermatozoa (P , 0.05). Sperm DNA damage was more than 16-fold higher in ... Antioxidant therapy mitigates summer-induced DNA damage in boar spermatozoa. In: [Presented at the 84th Philippine Veterinary ...https://researchonline.jcu.edu.au/48349/
The zona pellucida-induced acrosome reaction of human spermatozoa involves extracellular signal-regulated kinase activation
The human egg may only be fertilized by one spermatozoon to prevent polyploidy. In most mammals, the primary block to ... The present article describes the biological role of ERK during the acrosome reaction of human spermatozoa on stimulation with ... The present article describes the biological role of ERK during the acrosome reaction of human spermatozoa on stimulation with ... The zona pellucida-induced acrosome reaction of human spermatozoa involves extracellular signal-regulated kinase activation. ...http://scholar.sun.ac.za/handle/10019.1/13335