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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
199
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pubmed:dateCreated |
1984-11-9
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pubmed:abstractText |
We have examined by electron microscopy the non fertilized oocytes and the non divided eggs after assay of in vitro fertilization. We have observed three blocking points; 1) absence of fusion of the gametes, either because of oocyte immaturity or over-maturity, either because of spermatozoa phagocytosis by follicle cells transformed in phagocytic cells, in presence of intra or extra-cellular bacteria; 2) fusion of the gametes but absence of spermatic nucleus decondensation; 3) fusion of the gametes and pronuclei formation but absence of amphimixy. Two causes are evident: failure of oocyte maturation in vivo or in vitro, and bacterial contamination problems after female or male infra-clinical infections.
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pubmed:language |
fre
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0376-6160
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
67
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
363-74
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6689607-Cleavage Stage, Ovum,
pubmed-meshheading:6689607-Embryo Transfer,
pubmed-meshheading:6689607-Female,
pubmed-meshheading:6689607-Fertilization in Vitro,
pubmed-meshheading:6689607-Humans,
pubmed-meshheading:6689607-Male,
pubmed-meshheading:6689607-Microscopy, Electron,
pubmed-meshheading:6689607-Oocytes,
pubmed-meshheading:6689607-Ovarian Follicle,
pubmed-meshheading:6689607-Ovum,
pubmed-meshheading:6689607-Phagocytosis,
pubmed-meshheading:6689607-Sperm-Ovum Interactions
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pubmed:year |
1983
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pubmed:articleTitle |
[Failures at in vitro fertilization: electron microscopic studies of unfertilized oocytes and undivided ova].
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pubmed:publicationType |
Journal Article,
English Abstract
|