Oocyte maturation
Control of oocyte maturation
... Oocyte maturation is a complex process involving nuclear and cytoplasmic ...nuclear maturation is a chromosomal segregation and the cytoplasmic maturation involves the reorganization of the ...
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CPEB and miR-15/16 Co-Regulate Translation of Cyclin E1 mRNA during Xenopus Oocyte Maturation.
... The critical aspect of CPEB activity is the precisely-timed relief of repression and subsequent activation of translation of its target mRNAs during oocyte maturation, prior to its proteolysis. A previous ...
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INDUCTION OF OOCYTE MATURATION IN THE WHITE CROAKER Micropogonias furnieri (PISCES: SCIAENIDAE) BY HUMAN CHORIONIC GONADOTROPIN
... induce oocyte maturation of Micropogonias furnieri and to characterize ovarian dynamics during the periovulatory ...diameter. Oocyte maturation was induced by three doses used: 100, 300, and ...
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The beneficial effects of cumulus cells and oocyte-cumulus cell gap junctions depends on oocyte maturation and fertilization methods in mice
... and oocyte-cumulus cell gap junctions to oocyte maturation was analyzed under different culture conditions, including in vivo or in vitro maturation, with or without cumulus cells or gap ...
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STEROID METABOLISM IN VITRO DURING FINAL OOCYTE MATURATION IN WHITE CROAKER Micropogonias furnieri (PISCES: SCIAENIDAE)
... Gonadotropin initiates FOM by brings on the synthesis of a maturational-inducing steroid (MIS) by the ovarian follicles. Progestagens induce oocyte maturation in Teleost fish (Goetz et al., 1987; Jalabert ...
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Winter hibernation and UCHL1-p34cdc2 association in toad oocyte maturation competence.
... candidate was identified. A much greater quantity of this candidate was absorbed from LTE-oocytes than from HTE- oocytes [4]. A candidate-reactive monoclonal antibody was prepared by cutting out its corresponding band in ...
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The Effects of Progesterone on Oocyte Maturation and Embryo Development
... with oocyte quality and maturity ...vitro oocyte maturation ...improve maturation rates and developmental competence of GV in COCs and cumulus denuded oocytes (CDOs) at any of the tested ...
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A new vision of the origin and the oocyte development in the ostariophysi applied to Gymnotus sylvius (Teleostei, Gymnotiformes)
... The oocyte enters primary growth while still within the cell ...the oocyte and follicle cells, composing the follicle, are encompassed by a basement ...complex. Oocyte development occurs inside the ...
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Angiotensin II, progesterone, and prostaglandins are sequential steps in the pathway to bovine oocyte nuclear maturation
... prevent oocyte meiotic resumption before the LH ...bovine oocyte maturation, cumulus expansion and subsequently em- bryo development in medium containing estradiol and in the absence of follicular ...
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Dynamics of ovarian maturation during the reproductive cycle of Metynnis maculatus, a reservoir invasive fish species (Teleostei: Characiformes)
... confirm that the peak of pituitary and plasma LH can occur prior to spawning, during spawning or right after spawning; the particulars are species-dependent. We did not measure the LH plasma or pituitary levels in this ...
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The Luteal Phase after GnRHa Trigger-Understanding An Enigma
... The luteal phase of all stimulated in vitro fertilization/intra-cytoplasmic sperm injection (IVF/ICSI) cycles is disrupted, which makes luteal phase support (LPS) mandatory. The cause of the disruption is thought to be ...
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In vitro acute exposure to DEHP affects oocyte meiotic maturation, energy and oxidative stress parameters in a large animal model.
... on oocyte maturation, energy and oxidative status in the horse, a large animal ...vitro maturation (IVM), CCs were removed and evaluated for apoptosis (cytological assessment and TUNEL) and ...
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The reproductive biology of Pinguipes brasilianus Cuvier, 1829 (Osteichthyes: Pinguipedidae) in temperate rocky reefs of Argentina
... of oocyte maturation, and the type of fecundity and its extent, shape the population dynamics of a species by affecting the availability of early ...
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In vitro maturation of collared peccary (Pecari tajacu) oocytes after different incubation times
... for oocyte maturation in the collared ...cytoplasmic maturation, which occurs after meiotic maturation and refers to the ability of the oocyte to be fertilized and to block polyspermy, ...
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Vicente José de Figueirêdo Freitas1 , Luciana Magalhães Melo1
... of oocyte maturation and research on different culture conditions have led to substantial progress in in vitro embryo production (IVEP) systems (Thompson, 2000; Cognié et ...
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Effect of conditioned medium of mesenchymal stem cells on the in vitro maturation and subsequent development of mouse oocyte
... Immature germinal vesicle (GV) oocytes were col- lected from ovaries of 4-week-old female mice that were injected with 5 IU pregnant mare serum gonadotrophin (PMSG) 46 h previously. Using a stereomicroscope (Olym- pus, ...
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Papéis Avulsos de Zoologia
... mature oocyte and the speed of oocyte maturation, showing that these characteristics have a distinct correlation with the different behavioral patterns found in this insect ...
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Regulation of fatty acid oxidation in mouse cumulus-oocyte complexes during maturation and modulation by PPAR agonists.
... vitro maturation or on subsequent embryo development following ...during maturation in vitro dose dependently inhibited FAO despite upregulating genes involved in fatty acid activation, carnitine-mediated ...
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Cholesterol depletion disorganizes oocyte membrane rafts altering mouse fertilization.
... porcine oocyte maturation has been demonstrated by using inhibitors of fatty acid b-oxidation leading to developmental failure post-fertilization ...during oocyte maturation ...the ...
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Gonadal development and fecundity of the smooth weakfish Cynoscion leiarchus (Teleostei: Perciformes: Sciaenidae) in a tropical Brazilian bay
... oocyte maturation, and relative fecundity ranged from 232 to 1,225 oocytes, averaging 467 oocytes per gram of ovary-free body weight. Fecundity tended to increase linearly with gonadal weight, total weight, ...
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