HOME >> BIOLOGY >> NEWS
New method of testing eggs for abnormalities could solve problems of embryo freezing

Prague, Czech Republic: Italian researchers have shown for the first time that it is possible to test a woman's egg, before fertilisation, for chromosomal abnormalities that might make an embryo less likely to implant successfully or more likely to miscarry at a later stage.

The technique involves analysing the first polar body, a small membrane-bound cellular structure that is expelled from the mature egg (oocyte) before fertilisation, and which mirrors the chromosomal status of the egg.

Dr Anna Pia Ferraretti told the 22nd annual conference of the European Society of Human Reproduction that, since the change in the Italian law in 2004, doctors were banned from discarding or freezing surplus embryos and only three embryos could be created at one time, all of which had to be transferred.

"As a consequence, a maximum of three oocytes have to be selected for insemination in order to avoid the development of more than three embryos. However, the three chosen might not be the best oocytes and, especially in women over the age of 35, there is a very high chance of choosing aneuploid oocytes oocytes where one or two chromosomes have been lost or gained and which, consequently, will develop into embryos that either fail to implant or are more likely to miscarry at a later stage," said Dr Ferraretti, who is scientific director of the Societ Italiana Studi di Medicina della Riproduzione (SISMER), in Bologna, Italy.

Dr Ferraretti and her team decided to see whether analysis of the first polar body could be a safe and effective tool for choosing viable eggs for fertilisation. Previously, no other researcher had attempted to use this technique in "real time" before insemination. "It involves a great team effort and sophisticated technology," said Dr Ferraretti.

They performed 510 egg retrievals between March 2004 and July 2005, and in 266 cases they tested the first polar body for five chromosomes among the eight that were known to be m
'"/>

Contact: Emma Mason
wordmason@mac.com
44-771-129-6986
European Society for Human Reproduction and Embryology
19-Jun-2006


Page: 1 2 3

Related biology news :

1. Cost-effective method for gene silencing is featured in Cold Spring Harbor Protocols
2. A new method of adult stem cell growth efficacious in treatment of disorders of the cornea
3. Purdue-IU researchers explore new method for early disease diagnosis
4. Sequencing method yields fuller picture
5. New imaging method clarifies nutrient cycle
6. Researchers discover method for identifying how cancer evades the immune system
7. Bioinformatics-related methods are featured in Cold Spring Harbor Protocols
8. New method for reading DNA sheds light on basis of cell identity
9. Nanoparticles hitchhike on red blood cells: a potential new method for drug delivery
10. Rutgers, Penn researchers capture research dollars to improve prostate cancer diagnostic methods
11. Developer of new method for treating bone defects wins WPI Entrepreneurship Award

Post Your Comments:
(Date:3/12/2015)... March 12, 2015 Beta ... identity and access management (IAM) solution for a ... With Beta System,s new IAM package, customers benefit ... gleaned from multiple IAM implementations across different industries. ... as well as any necessary services and consulting. ...
(Date:3/11/2015)... Research and Markets ( http://www.researchandmarkets.com/research/3p32qm/access_control ) ... Market by Product, Application & By Geography - Global ... offering. , This report predicts that the ... by 2020, with an estimated CAGR of 10.6%. ... types such as contact cards & readers, contactless cards ...
(Date:3/10/2015)... March 10, 2015  Continuing its 167-year history of ... Schlemmer introduces The Eye Scanning Password Authenticator , ... access to secure websites or sensitive data. ... at international borders, the device has a small camera ... of the iris, converting them into an encrypted ID ...
Breaking Biology News(10 mins):Beta Systems Fast Forward IAM Available Now: a Standardized IAM Package at a Fixed Price 2Global Access Control (Cards & Readers, Biometrics, Controllers, Management Software) Market 2015-2020 - Analysis of the $10 Billion Market 2Hammacher Schlemmer Introduces The Eye Scanning Password Authenticator 2
(Date:3/26/2015)... March 26, 2015 WriteResult, a premier ... researchers from Yale University’s School of Public Health and ... participants during a 4 month-long project. The goal of ... low income families with free access to fresh produce ... diet-related health concerns like high blood pressure, diabetes and ...
(Date:3/25/2015)... /PRNewswire/ - SQI Diagnostics Inc. ("SQI" or the "Company") (TSX-V: ... recent discussions with certain shareholders representing approximately 45% of ... dealing with certain matters including the appointment of auditors ... March 26, 2015 (the "Meeting") it intends to adjourn ... take place when the Meeting reconvenes. The Meeting will ...
(Date:3/25/2015)...  S&P Capital IQ (MHFI) announced today that ... on Abattis Bioceuticals Corp . ... specialty biotechnology company with capabilities through its wholly ... ingredients, bio-similar compounds, patented equipment and consulting services ... . The company seeks to capitalize on ...
(Date:3/25/2015)... and REYKJAVIK, Iceland , March ... for using the genome to create better medicine, today congratulated ... largest studies of whole-genome data yet undertaken. ... Genetics – are built around the most comprehensive ... team of deCODE scientists led by Kari Stefansson , ...
Breaking Biology Technology:Yale and New Haven Farms Improving Patient Health with WriteResult's myPROpad™ 2Yale and New Haven Farms Improving Patient Health with WriteResult's myPROpad™ 3SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 2SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 3SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 4SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 5S&P Capital IQ Initiates Coverage on Abattis Bioceuticals Corp. in S&P Capital IQ Factual Stock Reports 2S&P Capital IQ Initiates Coverage on Abattis Bioceuticals Corp. in S&P Capital IQ Factual Stock Reports 3S&P Capital IQ Initiates Coverage on Abattis Bioceuticals Corp. in S&P Capital IQ Factual Stock Reports 4S&P Capital IQ Initiates Coverage on Abattis Bioceuticals Corp. in S&P Capital IQ Factual Stock Reports 5Landmark deCODE Studies Demonstrate the Power of Truly Big Genomics for Improving Medicine Worldwide 2
Cached News: