• IVIRMA studies presented at ESHRE find proteins, free radicals produced by embryos help predict pregnancy

    • 2:09PM
    embryo research
    · Two new studies on embryo selection are based on the proteins and oxide present in the culture media embryos grow in
    · Artificial intelligence presented as tool to aid in embryo selection in the future

    VIENNA, 24 JUNE 2019

    One of the lines of research in which most resources are currently being invested in the field of Assisted Reproduction is perfecting embryo selection. Recently, the use of Artificial Intelligence to achieve a degree of automation when choosing embryos or in performing genetic analysis has represented a step forward in terms of perfecting selection and, consequently, improving results.

    At the 35th Annual Meeting of the European Society of Human Reproduction and Embryology (ESHRE), held in Vienna, IVI presented two new studies relating to analysis of embryo culture medium that sought to determine embryo quality, and, as a result, improve treatment outcomes.

    In the first study, “Protein profile of euploid single embryo transfer reveals differential patterns among them”, which was carried out at IVI Valencia between September 2017 and March 2018 and looked at 81 cycles that would undergo Single Embryo Transfer (SET), doctors analyzed the proteins secreted by the embryo into the culture medium.

    “The importance of this study lies in the fact that these are embryos that have already been genetically tested and found to be euploid. It has a higher value given that, in spite of being genetically selected embryos, not all of them manage to implant. As a result, the idea is to improve the selection process by protein analysis. In this study we used, in part, Artificial Intelligence, along with the images that we obtained from the Embryoscope and the Geri (two models of cinematic incubators), developing a method that combines images with the protein selection method,” said Dr Marcos Meseguer, the lead researcher on the study and Head of Research at IVI Valencia.

    “We confirmed a significantly high secretion of IL-6 and IL-8 in growing embryos, focusing on the potential of these molecules during development of these embryos. The majority of the protein concentrations presented a pattern of higher values in hatched blastocysts,” he added.

    The second of the two studies presented, “High culture media oxidative profile as a biomarker of good quality embryos: a non-invasive tool to select the embryo to transfer,” is based on studying the culture medium with multiple embryo development, in situations in which between 10 and 12 embryos are contained within a single drop. The objective was to analyse whether the oxidative profile could be a good biomarker for determining embryo quality.

    According to Dr Meseguer, “we assessed when all of the resulting embryos are cultured together, and detected that there is a different oxidative profile when the embryos are good quality and when there are parameters that cause them not to be viable. We have developed a method for assessing the environment where many embryos are growing. By not developing an individual study, we analysed the oxidation that is generated as a measurable value in the medium in which the embryos are cultured. The more active and the better quality the embryos are, the more oxidation they cause within the culture medium. This indicates that they will be better prepared for being transferred and ensuring a higher success rate in the cycle for the patient. On the contrary, in the classification criteria, the level of oxidative stress decreased in line with a reduction in embryo quality.”

    The study, which was also carried out at IVI Valencia, analysed a sample of 683 embryos from a total of 174 In Vitro Fertilization (IVF) cycles that were performed between May 2017 and December 2018.

    49 communications accepted: 14 oral presentations, 31 posters and 4 papers

    ESHRE is the top European conference on Assisted Reproduction. It is the place where the best professionals from all over the world come together, and where, every year, they reach important conclusions that map the future in the domain of reproduction.

    This year, IVI had 49 contributions accepted in the general program: 14 oral presentations, 31 posters and 4 papers.

    About IVI – RMANJ

    IVI was set up in 1990 as the first medical institution in Spain to specialize exclusively in human reproduction. Since then it has helped create more than 160,000 babies, thanks to its use of the latest Assisted Reproduction technologies. In 2017, IVI merged with RMANJ to become the largest Assisted Reproduction group in the world. It currently has more than 65 clinics in 11 countries and is a leader in Reproductive Medicine.