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:12/24/2014)...  Since its launch in December 2014, the 1U™ ... of trying to remember their usernames and passwords through replacing ... smartphones. To assist people who have struggled to remember usernames ... 1U and focuses on redefining identity, announced today that it ...
(Date:12/22/2014)... Dec. 22, 2014 Research and Markets ... the "The Global Watermarking and Fingerprinting Markets" ... http://photos.prnewswire.com/prnh/20130307/600769 This insight ... watermarking and fingerprinting markets. Watermarking aims to control ...
(Date:12/19/2014)... and Markets ( http://www.researchandmarkets.com/research/8kmfcn/iphone_5s ) has announced ... - Apple/AuthenTec TMDR92 & Sapphire - Technology Report" ... http://photos.prnewswire.com/prnh/20130307/600769 Following the acquisition of AuthenTec ... with the iPhone 5S. It is currently the only ...
Breaking Biology News(10 mins):1U Offers Best Solution to the Username / Password Dilemma: For FREE! 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 3The Global Watermarking and Fingerprinting Markets 2iPhone 5S Fingerprint Sensor - Apple/AuthenTec TMDR92 & Sapphire - Technology Report 2
(Date:1/22/2015)... 22, 2015 Shimadzu Scientific Instruments ... multipurpose UV-visible spectrophotometer. Offering wavelength scanning from 190 ... ideal for applications in a variety of industries, ... The user-friendly UV-1280 enables intuitive operation, while the ...
(Date:1/22/2015)... The laboratory information management systems market is ... of technological advancements due to factors such as rising ... integrate healthcare systems, and increasing government support for adoption ... Key players in the market focus on technological advancements ...
(Date:1/22/2015)... Dr. Greg Leyer of UAS Labs recently was invited to ... on probiotics in San Diego, CA. , The Scripps ... health care professionals. This year’s pre-conference seminar was held on ... Dr. Leyer spoke about the emerging topics and science in ...
(Date:1/22/2015)... , Jan. 22, 2015   Cypher Genomics, ... Sequenom, Inc. (NASDAQ: SQNM ), the ... agreement for next generation noninvasive prenatal tests (NIPT). ... interpretation technology, called Mantis™, to advance analysis of ...
Breaking Biology Technology:Shimadzu’s New Monitored Single-Beam UV-Vis Spectrophotometer Offers Comprehensive Measurement Options in a Compact Body 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 3Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 4Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4
Cached News: