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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1997-10-16
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pubmed:abstractText |
A study was made to determine if ethylene glycol (EG) can be used in a simple solution to vitrify mouse 8-cell embryos and to determine the critical factors that affect its success. Mouse 8-cell embryos were vitrified after exposure to 2M and 7M EG prepared in Dulbecco's phosphate buffered saline (PBS) with 10% heat-inactivated calf serum (CS). Mouse 8-cell embryos exposed to 2M EG for 2, 5 and 10 min, and to 7M EG for 2 and 5 min had survival rates similar to the untreated controls (93.3-100%). No significant difference in their survival rates in vitro was observed. Higher room temperatures (> 24 degrees C) at exposure before cooling resulted in poor development rates to the blastocyst stage. The survival rates of embryos vitrified after 2 min in 7M EG at 18-22 degrees C room temperature did not differ significantly from the control, but embryos vitrified after 5 min had significantly lower survival rates (p < 0.0001). In conclusion, effective vitrification of mouse 8-cell embryos can be achieved by initial exposure to 2M EG for 2-10 min followed by equilibration in 7M EG for 2 min at 18-22 degrees C room temperature. This study has shown that 7M EG in PBS with 10% CS is sufficient to provide cryoprotection of vitrified mouse 8-cell embryos and that exposure of the embryos to the vitrification solution at temperatures over 24 degrees C is critical to their subsequent development in vitro.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0047-1917
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
45
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
67-73
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:9308291-Animals,
pubmed-meshheading:9308291-Cell Survival,
pubmed-meshheading:9308291-Chorionic Gonadotropin,
pubmed-meshheading:9308291-Cleavage Stage, Ovum,
pubmed-meshheading:9308291-Cryopreservation,
pubmed-meshheading:9308291-Ethylene Glycols,
pubmed-meshheading:9308291-Female,
pubmed-meshheading:9308291-Mice,
pubmed-meshheading:9308291-Mice, Inbred ICR,
pubmed-meshheading:9308291-Solutions
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pubmed:year |
1997
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pubmed:articleTitle |
In vitro viability of mouse 8-cell embryos vitrified in a simple solution of ethylene glycol.
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pubmed:affiliation |
Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan. jobau@vetmed.hokudai.ac.jp
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pubmed:publicationType |
Journal Article
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