NEW DELHI, July 5, 2018 /PRNewswire/ --
A study titled "Improved concordance rates for aneuploidy detection in
spent culture media compared to trophectoderm biopsies: a step forward towards non-invasive pre-implantation genetic testing" was presented by Igenomix at the 34th Congress of the European Society of Human Reproduction and Embryology (ESHRE) in
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As a result of this new technique, the costs and potential risks associated with embryo biopsy can be reduced, enabling more couples undergoing IVF treatment to have access to this analysis.
Historically, chromosomal analysis of the embryo has been carried out using embryo biopsy. PGS has resulted in improved implantation rates in the first cycle and reduced miscarriage rates. It has also shortened the time to pregnancy for infertile couples.
For several years, researchers have worked towards non-invasive diagnosis of the embryo, in order to avoid embryo biopsy with the additional risks and costs involved.
A previous paper by Igenomix, entitled Origin and composition of cell-free DNA in spent medium from human embryo culture during pre-implantation development, in the journal Human Reproduction, found that DNA released by the embryo into the culture media contains a chromosomal representation of that embryo. Subsequently, the group refined the techniques to improve the results from the pilot study, with the goal being clinical application of a non-invasive chromosomal diagnosis of the embryo.
"In our current study, performed on more than 100 samples of culture media from patients with advanced maternal age, recurrent miscarriages or repeated implantation failure, we observed approximately 85% concordance compared to conventional PGS techniques. Therefore, we are very close to achieving a significant milestone in the history of assisted reproduction, which would mean the end of embryo biopsy as a means of obtaining genetic information from the embryo," explained Dr. Carmen Rubio, first author of this paper.
One more step towards personalized medicine
"We need to continue this line of research to fully test the effectiveness of non-invasive PGS, as this represents a significant development in personalized assisted reproduction," the researcher added. "A diagnosis based on the culture media of the embryo, during the time when it develops in the IVF laboratory, could lead to simplification of its genetic analysis so that a greater number of patients could benefit from this type of study," added Rubio.
According to experts, non-invasive diagnosis of the embryo could lead to a 10% improvement in IVF treatment success rates. Aneuploidies are responsible for a large proportion of negative pregnancy tests and up to 50% of miscarriages. "Use of this technique would improve the chances of achieving pregnancy and, ultimately, of having a healthy baby, which is the fundamental goal of assisted reproduction," she concluded.
Igenomix is a pioneering biotechnology company in the field of reproductive genetics. Its combined experience and advanced research abilities make it one of the world leaders in this field of reproductive genetics and guarantee the provision of effective solutions personalized to different infertility problems. It is present in Valencia (Spain), Miami, Los Angeles, New York, Mexico City, UK, Japan, Sao Paulo, Dubai, Delhi, Turkey and Argentina with a workforce of over 250 professionals. It has a robust global presence with 14 laboratories worldwide.
Further information on the company is available on http://www.igenomix.co.in
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