QUE SIGNIFIE ACROSOME REACTION EN ANGLAIS
Réaction de l'acrosome
Au cours de la fécondation, un sperme doit d'abord se fondre avec la membrane plasmique et ensuite pénétrer l'œuf femelle pour la fertiliser. Fusing to the egg provoque généralement peu de problème, alors que pénétrer à travers la coquille dure de l'œuf peut présenter plus d'un problème pour le sperme. Par conséquent, les spermatozoïdes passent par un procédé connu sous le nom de réaction d'acrosome qui est la réaction qui se produit dans l'acrosome du sperme à mesure qu'il s'approche de l'œuf. L'acrosome est une structure en forme de chapeau sur la moitié antérieure de la tête du sperme. Au fur et à mesure que le sperme s'approche de la zona pelucheuse de l'œuf, nécessaire pour déclencher la réaction de l'acrosome, la membrane entourant l'acrosome se fond avec la membrane plasmatique de l'ovocyte, exposant le contenu de l'acrosome. Le contenu comprend des antigènes de surface et de nombreuses enzymes qui sont responsables de la rupture du revêtement dur de l'œuf et de la fertilisation.
définition de acrosome reaction dans le dictionnaire anglais
La définition de la réaction de l'acrosome dans le dictionnaire est la libération d'enzymes de l'acrosome lorsqu'un spermatozoïde rencontre l'ovule, permettant la fusion avec l'ovule dans le processus de reproduction sexuel.
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10 LIVRES EN ANGLAIS EN RAPPORT AVEC «ACROSOME REACTION»
Découvrez l'usage de
acrosome reaction dans la sélection bibliographique suivante. Des livres en rapport avec
acrosome reaction et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
Human Sperm
Acrosome Reaction
Induction. of. the. human. acrosome. reaction. by. rhuZP3. Christopher L.R.
Barratt1' and David P. Hornby2 ' University Department of Obstetrics and
Gynaecology, Jessop Hospital for Women, Sheffield S3 IRE, United Kingdom;
2Krebs Institute ...
Patrick Fénichel, Jean Parinaud,
1995
2
Andrology: Male Reproductive Health and Dysfunction
144 10.8.3 Zona Penetration Test ............................. 144 10.9 Acrosome Reaction .
.............................................. 144 10.9.1 Zona-Induced Acrosome Reactions ........
145 10.9.2 Recombinant Zona Proteins .................... 145 10.10 Sperm–Egg
Fusion ...
Eberhard Nieschlag, Hermann M. Behre, Susan Nieschlag,
2010
The zona pellucida and the acrosome reaction Those capacitated spermatozoa
that gain access to the zona pellucida, bind to it via receptors on the
spermatozoal anterior head region. Then a dramatic morphological
transformation in the ...
4
Acrosome Reaction: Introduction, Process, in Vitro ...
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.
5
Proteomics of Spermatogenesis
For example, in the female reproductive tract, the spermatozoa rmdergo
capacitation and the acrosome reaction that enable them to fertilize the egg. Both
of these processes are accompanied by re-localization of many proteins. During
sperm ...
6
CURRENT TOPICS DEVELOPMENTAL BIOLOGY
Although the dramatic assembly of actin in marine invertebrate sperm
undergoing the acrosome reaction is serving as a model for the exploration of the
actin behavior, questions remain about the acrosome reaction in mammalian
sperm.
A. A. Moscona, McLaren, Todd, Alberto Monroy,
1988
Acrosome Reaction (Binary) Acrosome-lntact Acrosome-Reacted FIGURE 8.1
Depiction of the acrosome reaction model for explaining the function of the acro-
some in fertilization. This model emphasizes two states for spermatozoa: ...
The sperm bind to a specific glycoprotein on the zona pellucida and undergo the
acrosome reaction (induced by the zona glycoprotein). Without successful
capacitation, the sperm will neither bind to the zona pellucida nor undergo the ...
Phillip E. Patton, David E. Battaglia,
2007
9
CURR TOPICS IN MEMBRANES & TRANSPORT
It is important to note that the plasma membrane above the equatorial segment
can fuse with the egg plasma membrane only after the spermatozoa have
undergone the acrosome reaction. The acrosome-intact spermatozoon,
regardless of ...
Nejat Du ̈zgu ̈nes ̧, Felix Bronner,
1988
10
CURRENT TOPICS DEVELOPMENTAL BIOLOGY
Regarding the spermatozoon, although the events leading to the acrosome
reaction are fairly well known, the question as to whether or not the acrosome
reaction is triggered by the interaction with the outermost egg envelope(s) or with
the ...
Aron Arthur Moscona, Martin Friedlander, Alberto Monroy,
1980
10 ACTUALITÉS CONTENANT LE TERME «ACROSOME REACTION»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
acrosome reaction est employé dans le contexte des actualités suivantes.
Fluoride may damage female reproductive system
Genes such as Bmp15, Gdf9, H1oo, and ZP2 that are involved in oocyte growth and the induction of the acrosome reaction were also ... «Food Consumer, juil 15»
UVA reproductive research could lead to male contraceptive
... the region of the sperm head that is thought to initiate fusion with the egg during this transformative time after the acrosome reaction suggests ... «Augusta Free Press, juin 15»
Frozen out: Sperm proteins affected by cryopreservation
Such a study could also reveal which proteins are associated with motility and the processes of capacitation and acrosome reaction, which lead ... «spectroscopyNOW.com, mars 14»
Does Eating Leafy Veggies Increase Quality Sperms
... it produces a sharp increase in sperm motility, along with rapid development of the "acrosome reaction" that allows the sperm cell to attach to ... «BoldSky, déc 13»
Vitamins To Improve Fertility In Men
... it produces a sharp increase in sperm motility, along with rapid development of the "acrosome reaction" that allows the sperm cell to attach to ... «BoldSky, déc 13»
Irish researchers discovering more and more about male infertility
Before fertilisation, healthy sperm cells go through an activation process called the acrosome reaction. During that phase, the sperm releases ... «thejournal.ie, oct 13»
Stallion Semen Tests: Which to Use and What Do They Mean?
... A23187, a potent inducer of the acrosome reaction. "If you have a semen sample that looks very good based on traditional tests, but you can't ... «TheHorse.com, sept 13»
Fertilization and Early Pregnancy Loss in Mares
The next step is the acrosome reaction, which allows the sperm to provide the enzymes required to break through the egg. A cortical reaction ... «TheHorse.com, avril 12»
Keep healthy with antioxidants
... capacitation (the physiological changes in spermatozoa to penetrate and fertilize an egg), acrosome reaction (Reaction on cap like structure ... «PakistanToday.com.pk, févr 12»
Sex in the Sun May Increase Your Fertility
... involved in not only increasing sex hormone production, but also in maturation of sperm involving motility and the acrosome reaction when a ... «eMaxHealth, janv 12»