Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
199
pubmed:dateCreated
1984-11-9
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.
pubmed:language
fre
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0376-6160
pubmed:author
pubmed:issnType
Print
pubmed:volume
67
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
363-74
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
[Failures at in vitro fertilization: electron microscopic studies of unfertilized oocytes and undivided ova].
pubmed:publicationType
Journal Article, English Abstract