Perspectives on the status of human embryos and whether they should be discarded differ globally. Some countries protect embryos in law while in other countries embryos 'die' or 'succumb' in assisted reproductive technology clinics on a daily basis. This study analyses interview data drawn from a larger qualitative study conducted in South Australia from 2004-2007. 21 women and 12 of 21 partners were interviewed about the decision they made to discard their embryos. The analysis reported here sought to examine the ways in which women constructed and experienced the decision to discard embryos. The article highlights the ways in which embryo discard is a contested discursive space. Embryo death is sequestered through their confinement in the laboratory and their invisibility to the naked eye. The clinic treated embryo discard as disposal of biological waste and failed to acknowledge the meaning of the event. By contrast women experienced emotional bereavement described as similar to early pregnancy loss, and described experiences of attachment and grief. For sensitive and compassionate care these differences in perceptions of embryo discard need to be addressed.
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http://dx.doi.org/10.1111/1467-9566.12497 | DOI Listing |
Biomedicines
December 2024
CCRM Genetics, 10290 Ridgegate Circle, Lone Tree, CO 80124, USA.
Abnormally fertilized embryos are often discarded during in vitro fertilization due to the fact that known chromosomal ploidy abnormalities lead to implantation failure or pregnancy loss. The objective of this study was to determine if pronuclear numeration (PN) observed at fertilization check is representative of the true ploidy status of the subsequent developing blastocyst in order to maximize the number of viable embryos available for infertility patients and increase their chances of conception. Upon successful fertilization, pronuclear numeration was noted, and zygotes were cultured to the blastocyst stage.
View Article and Find Full Text PDFJ Clin Med
January 2025
Gynecological Research Laboratory, Department of Obstetrics and Gynecology, Hillel Yaffe Medical Center, Hadera 3820302, Israel.
In this research, we retrospectively studied the influence of the IVF vs. the ICSI technique on embryo morphokinetics by means of a time-lapse incubator in fresh cycles. A total of 2645 treatment cycles resulting in ovum pick-up of 11,471 fertilized oocytes were included in the research from 2018 to 2022.
View Article and Find Full Text PDFVet Med Sci
January 2025
Department of Agricultural Biotechnology, Faculty of Agriculture, University of Kırşehir Ahi Evran, Kırşehir, Türkiye.
Background And Objective: This study aimed to determine the effects of in ovo formula product injection on hatching parameters, chick quality, small intestinal development and ileum histology of breeder hen eggs.
Methods: A total of 400 fertilised eggs were obtained from the Atak-S parent flock at 42 weeks of age for the experiment. The experiment was designed in two groups: a control group (C), in which no injection was performed, and the other group in which a solution containing formula products at concentrations of 1.
Study Question: Does one-step warming (OW), a simplified embryo warming protocol, adversely affect survival and developmental potential in vitrified cleavage or blastocyst stage embryos compared to standard multi-step warming (SW)?
Summary Answer: OW showed no detrimental effects on survival and developmental potential compared to SW in cleavage and blastocyst stage embryos.
What Is Known Already: While standard embryo warming protocols involve a multi-step procedure using a stepwise osmotic solution to avoid a rapid influx of water into the embryo, recent studies suggest that eliminating the stepwise warming process does not reduce embryo survival and embryo transfer outcomes. However, previous reports have focused primarily on pregnancy rates, and a more detailed analysis of the effects of rapid osmotic pressure changes on embryos is necessary to standardize the protocol.
Poult Sci
January 2025
Queensland Alliance for Agriculture and Food Innovation (QAAFI), The University of Queensland, Australia. Electronic address:
The early post-hatching phase remains to be one of the most vulnerable phases in broiler production. Some essential oils have been reported to improve gut health and growth in broiler chickens when applied to post-hatching diets. However, in-feed applications are unable to prevent the health challenges observed immediately after hatching.
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