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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1990-8-30
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pubmed:abstractText |
The survival and developmental capacity of cumulus cell-enclosed oocytes frozen (1) at the germinal vesicle (GV) stage, after maturation in vitro with (2) and without (3) FSH, and (4) after gonadotrophin-stimulated ovulation were assessed. Survival, defined as the number of morphologically normal oocytes, after freeze-thaw at the GV stage (69%), was lower than for oocytes frozen after ovulation (84%), and after maturation in vitro with FSH (88%) and without FSH (81%). Treatment with DMSO without freezing had no effect on survival when compared with untreated controls except in immature GV-stage oocytes for which there was a slight reduction. After insemination in vitro, 9% of frozen-thawed GV-stage oocytes cleaved to two equal blastomeres, but none developed to blastocysts. Of oocytes matured in vitro before freezing, 17% cleaved to the 2-cell stage and 18% of these developed to blastocysts. When oocytes were matured in vitro in the presence of FSH, however, the percentage cleaving to the 2-cell stage after freeze-thaw was improved to 55%, and 77% of 2-cell stage embryos developed to blastocysts. When ovulated cumulus cell-enclosed oocytes were frozen, 88% cleaved and 67% of the cleaved embryos developed to blastocysts. When 158 two-cell embryos resulting from oocytes matured in vitro with FSH were transferred to the oviducts of pseudopregnant foster mothers, 41 genetically marked live young were produced (26%).(ABSTRACT TRUNCATED AT 250 WORDS)
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pubmed:grant | |
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 |
May
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pubmed:issn |
0022-4251
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
89
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
43-50
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2115584-Animals,
pubmed-meshheading:2115584-Cell Survival,
pubmed-meshheading:2115584-Cryopreservation,
pubmed-meshheading:2115584-Female,
pubmed-meshheading:2115584-Fertilization in Vitro,
pubmed-meshheading:2115584-Follicle Stimulating Hormone,
pubmed-meshheading:2115584-Mice,
pubmed-meshheading:2115584-Mice, Inbred Strains,
pubmed-meshheading:2115584-Oocytes,
pubmed-meshheading:2115584-Ovulation,
pubmed-meshheading:2115584-Ovum
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pubmed:year |
1990
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pubmed:articleTitle |
Developmental capacity of mouse oocytes cryopreserved before and after maturation in vitro.
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pubmed:affiliation |
Jackson Laboratory, Bar Harbor, Maine 04609.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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