In vitro fertilization and development of one of two human oocytes with fused zonae pellucidae: case report.
This report describes a pair of human oocytes of differing maturities but fused at the zona pellucida, believed to have originated from a binovular follicle. After insemination in vitro, one oocyte fertilized and developed into an expanded blastocyst, whereas the other, which contained a germinal vesicle, degenerated. A biopsy was aspirated from the blastocyst, which subsequently re-expanded but did not hatch.
Hartshorne
G M
GM
Bourn Hall Clinic, Bourn, Cambridge, United Kingdom.
Blayney
M
M
Dyson
H
H
Elder
K
K
D000328:Adult; D002450:Cell Communication / Q000502:physiology; D002678:Chimera; D005314:Embryonic and Fetal Development / Q000502:physiology*; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D009030:Mosaicism / Q000502:physiology; D009865:Oocytes / Q000166:cytology / Q000502:physiology*; D015044:Zona Pellucida / Q000502:physiology*