R-163. Failed-fertilized human oocytes: cytogenetic analysis

the chromosomal abnormality of failed fertilized human oocytes in an in vitro fertilization program

background: the high fertilization failure after ivf treatment cycles could be related to chromosomal abnormalities. this study was carried out to assess the frequency of chromosomal abnormality on human oocytes lacking signs of fertilization 18-20 h after insemination . materials and methods: on day one, 18-20 h after insemination (ivf), fertilization was confirmed when two pronuclei (normal i...

chromosomal abnormalities in failed fertilized oocytes following in vitro fertilization

introduction: the types and incidence of the chromosomal abnormalities in failed fertilized oocytes that were taken after routine in vitro fertilization (ivf) and intracytoplasmic sperm injection (icsi) programs were investingated in patients referred the royan institute. materials and method: in this study, 364 air-dried preparation of failed fertilized oocytes after either ivf (91 samples) or...

Reproductive efficiency of human oocytes fertilized in vitro

Embryonic development in human oocytes fertilized by split insemination

OBJECTIVE To compare the laboratory outcomes of intracytoplasmic sperm injection (ICSI) and conventional insemination using sibling oocytes in poor prognosis IVF cycles where ICSI is not indicated. METHODS Couples undergoing IVF with following conditions were enrolled: history of more than 3 years of unexplained infertility, history of ≥3 failed intrauterine insemination, leukocytospermia or ...

Fatty acid composition of fertilization-failed human oocytes.

The aim of the study was to assess the fatty acid composition of human fertilization-failed oocytes. A total of 150 unfertilized oocytes from 43 women undergoing in-vitro fertilization (IVF) were analysed using capillary gas chromatography. The majority of fatty acids were saturated (79.22%), of which stearic (38.65%) and palmitic (32.66%) acids were the most abundant. Of the monounsaturated fa...