Intranuclear characteristics of pig oocytes stained with brilliant cresyl blue and nucleologenesis of resulting embryos
Jazyk angličtina Země Anglie, Velká Británie Médium print-electronic
Typ dokumentu časopisecké články
PubMed
31397243
DOI
10.1017/s0967199419000352
PII: S0967199419000352
Knihovny.cz E-zdroje
- Klíčová slova
- Brilliant cresyl blue, Intranuclear characteristics, Nucleoli, Nucleologenesis of embryos, Pig,
- MeSH
- barvení a značení metody MeSH
- blastocysta chemie cytologie metabolismus MeSH
- buněčné jádro chemie ultrastruktura MeSH
- embryo savčí chemie cytologie ultrastruktura MeSH
- jaderné proteiny metabolismus MeSH
- konfokální mikroskopie MeSH
- oocyty chemie cytologie metabolismus MeSH
- oxaziny chemie MeSH
- prasata MeSH
- reprodukovatelnost výsledků MeSH
- transmisní elektronová mikroskopie MeSH
- velikost buňky MeSH
- zvířata MeSH
- Check Tag
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- Brilliant Cresyl Blue MeSH Prohlížeč
- jaderné proteiny MeSH
- oxaziny MeSH
Brilliant cresyl blue (BCB) vital labelling is a powerful method for analyzing the quality of porcine cumulus-oocyte complexes. Our aim was to investigate the correlation between the selection of porcine oocytes using BCB labelling and selected intranuclear characteristics of porcine oocytes and parthenotes. Moreover, BCB labelling was correlated with the diameter of the oocyte and the developmental potential of the parthenotes. The following methods were used: BCB labelling, measurement of the diameter of the oocyte, parthenogenetic activation, immunocytochemistry, transmission electron microscopy, enucleation and relative protein concentration (RPC) analysis. We determined that the diameter of the oocytes in the BCB-positive (BCB+) group was significantly larger than in the BCB-negative (BCB-) group. Immediately after oocyte selection according to BCB labelling, we found significant difference in chromatin configuration between the analyzed groups. BCB+ oocytes were significantly better at maturation than BCB- oocytes. BCB+ embryos were significantly more competent at cleaving and in their ability to reach the blastocyst stage than BCB- embryos. Ultrastructural analyses showed that the formation of active nucleoli in the BCB+ group started at the 8-cell stage. Conversely, most BCB- embryos at the 8-cell and 16-cell stages were fragmented. No statistically significant difference in RPC in nucleolus precursor bodies (NPBs) between BCB+ and BCB- oocytes was found. We can conclude that BCB labelling could be suitable for assessing the quality of porcine oocytes. Moreover, the evaluation of RPC indicates that the quantitative content of proteins in NPB is already established in growing oocytes.
Institute of Animal Science Pratelstvi 815 10400 Prague Uhrineves Czech Republic
Ss Cyril and Methodius University in Skopje Republic of Macedonia
Citace poskytuje Crossref.org
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