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rdf:type skos:Concept ;
"Gynécologie et obstétrique"@fr , "Gynecology and obstetrics"@en ;
skos:altLabel "perforation de la zone pellucide"@fr , "PZD"@en , "dissection partielle de la zona"@fr , "ZD"@en , "zona cutting"@en , "dissection partielle mécanique de la zone pellucide"@fr , "zona drilling"@en ;
skos:definition "Technique consistant à pratiquer des perforations ou une brèche dans la zone pellucide d'ovocytes non fécondés afin de favoriser le contact des gamètes. (Source : INRA)"@fr ;
skos:inScheme ;
skos:note "Partial zona dissection, in which a fine cutting pipette is pushed through the zona pellucida and the oocyte is released from the holding pipette and rubbed against the cutting pipette until a slit is produced, was proposed as a method for increasing fertilization. On average, fertilization rates are lower after partial zona dissection (PZD) compared with zona drilling and polyspermy rates are also generally reduced. This is possibly due to the smaller breech of the zona pellucida after PZD (80 µm2) compared with that produced after zona drilling (230 µm2). These techniques demonstrated that fertilization and pregnancies could be achieved with semen of very poor quality, but successes were sporadic. (Source : INRA)"@en , "Cette méthode de fécondation assistée a été proposée dans les cas d'échecs de FIV traditionnelle et de déficience spermatique. Elle a l'inconvénient de donner des résultats très variables, et d'entraîner un taux de polyspermie élevé. Elle n'est maintenant plus jamais utilisée. (Source : INRA)"@fr ;
skos:prefLabel "ouverture de la zone pellucide"@fr , "partial zona dissection"@en ;
skos:related ;
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skosxl:prefLabel , .
skos:related .
rdfs:label "RDF description of " ;
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skos:member .