2010
DOI: 10.1292/jvms.09-0563
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Influence of Parthenogenetic Activation on Nuclear Maturation of Canine Oocytes

Abstract: This study was designed to evaluate the nuclear maturation and maturation promoting factor (MPF) level at different maturation times, and the effect of parthenogenetic activation on nuclear maturation in canine oocytes. Cumulus-oocyte complexes (COCs) were matured in TCM-199 supplemented with 10% fetal bovine serum, hormones, 0.57 mM cysteine, and 10 ng/ml epidermal growth factor for 72 hr at 38.5 degrees C. In Experiment 1, COCs at 0, 24, 48 and 72 hr of culture were assessed for nuclear maturation and MPF le… Show more

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Cited by 4 publications
(8 citation statements)
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“…Denuding canine oocytes due to their highly inter-digitated cumulus, ZP attachment (Blackmore et al 2004, De los Reyes et al 2009) after culture, is challenging (Hewitt et al 1998). In addition, the lipid droplets inside the oocyte make it very difficult to visualize the chromatin content by simple aceto-orcein staining unless oocytes are fixed for 5-7 days (Song et al 2010). After trying several denuding buffers with different timetables of incubation and vortexing (Reynaud et al 2004), incubation in sodium tri-citrate 1% (Hewitt & England 1999) and denuding using an oocyte holding needle with gauge of 135 m (Yellow EZ-Strip Research Instruments Limited, Cornwall, UK) resulted in complete removal of the cumulus cells.…”
Section: Staining and Stagingmentioning
confidence: 99%
“…Denuding canine oocytes due to their highly inter-digitated cumulus, ZP attachment (Blackmore et al 2004, De los Reyes et al 2009) after culture, is challenging (Hewitt et al 1998). In addition, the lipid droplets inside the oocyte make it very difficult to visualize the chromatin content by simple aceto-orcein staining unless oocytes are fixed for 5-7 days (Song et al 2010). After trying several denuding buffers with different timetables of incubation and vortexing (Reynaud et al 2004), incubation in sodium tri-citrate 1% (Hewitt & England 1999) and denuding using an oocyte holding needle with gauge of 135 m (Yellow EZ-Strip Research Instruments Limited, Cornwall, UK) resulted in complete removal of the cumulus cells.…”
Section: Staining and Stagingmentioning
confidence: 99%
“…Takiben 30 mg/ ml BSA (bovine serum albumin) içeren TL-HEPES içinde 5 dakika bekletildi. 5 Ionomisinle muamele edilen oositler 10 µg/ml siklohekzimide (CHX) içinde 3 saat bekletildi. Hemen ardından, 3.3 mg/mL BSA (FAF-fatty acid free), 11.1 µL/mL sodyum piruvat ve 0.5 µL/mL gentamisinle zenginleştirilen TCM-199 içine alınarak, 39°C ve 5% CO2'lik etüvde 72 saatlik inkübasyona bırakıldı.…”
Section: Partenogenetik Aktivasyonunclassified
“…Ionomisinin tek kullanımının, kombinasyondan daha başarılı sonuç verdiği ve GVBD, MI, MII aşamalarındaki oositlerin istatistiksel olarak anlamlı olduğu belirtilmiştir. 5 (Song ve ark., 2010). Ionomisin uygulanan toplam 121 oositten 27'si GVBD, 41'i MI ve 24 tanesi MII aşamasında belirlenmiştir.…”
Section: çAlışmada Toplanan Oositlerin Tamamı In Vitrounclassified
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