Fertilization in vitro: Chromosomal abnormalities in human embryos
نویسندگان
چکیده
منابع مشابه
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...
متن کاملchromosomal aberrations in 2-8 cells embryos resulted from the in vitro fertilization procedures
introduction: the incidence of chromosomal abnormalities was investigated in untransfered embryos reuslted from in vitro fertilization (ivf) or intracytoplasmic sperm injection (icsi) procedures. materials and methods: a total of 238 embryos of varying morphology between the pronucleated stage and 8-cells were analysed. the cytogenetic method of dyban was used for chromosome preparation. embryo...
متن کاملthe 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...
متن کاملChromosome abnormalities in human embryos.
The presence of numerical chromosome abnormalities in human embryos was studied using fluorescence in-situ hybridization with four or more chromosome-specific probes. When most cells of an embryo are analysed, this technique allows differentiation to be made between aneuploidy, mosaicism, haploidy and polyploidy. Abnormal types of fertilization, such as unipronucleated, tripronucleated zygotes ...
متن کاملHuman in vitro fertilization.
Human in vitro fertilization has become a widely accepted method of treatment for infertile couples. The list of indications for this technique is rapidly growing and includes oligospermia, endometriosis, and unexplained infertility. The techniques of follicular recruitment, ovum maturation, and follicular aspiration, as well as laboratory culture techniques, are described. The various factors ...
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ژورنال
عنوان ژورنال: Nature
سال: 1983
ISSN: 0028-0836,1476-4687
DOI: 10.1038/303283a0