Controversies in ART: Can the IVF Laboratory Influence Preimplantation Embryo Aneuploidy?

Publication date: Available online 25 June 2019Source: Reproductive BioMedicine OnlineAuthor(s): Jason E. SwainAbstractPublished reports have indicated that rates of preimplantation embryo aneuploidy in a control donor population may vary between IVF centers. This suggests that location specific conditions, either in the clinic, IVF or genetics laboratory, may be influencing the chromosome dynamics or diagnosis. More recent reports suggest that rates of embryo mosaicism, representing mitotic errors, may vary between IVF centers. This would suggest perhaps a laboratory controlled variable is influencing mitotic cell division during preimplantation embryo development. Various IVF laboratory controlled factors may be impacting chromosome separation and segregation. Variables like type of culture media, pH, temperature, osmolality and oxygen concentration, could all be possible factors influencing embryo aneuploidy. Furthermore, laboratory techniques, method of insemination, laser use or handling of biopsied cells may also influence genetic results. These IVF laboratory variables will be reviewed and literature suggesting a possible link to mitotic aneuploidy/mosaicism discussed.
Source: Reproductive BioMedicine Online - Category: Reproduction Medicine Source Type: research