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:7/7/2015)... 2015  Based on its recent analysis of ... Credence ID, LLC with the 2015 Asia-Pacific ... Year Award. Credence ID has developed a low-cost, ... of offering enrollment and identification solutions to the ... was formed by experts from the mobile biometrics ...
(Date:7/2/2015)... 2015 Research and ... the "Natural Language Processing Market by Type ... Pattern & Image Recognition) - Worldwide Forecast to ... The key vendors occupying the market are 3M, ... Corporation, NetBase Solutions, SAS Institute Inc., Verint Systems ...
(Date:7/2/2015)... GOTHENBURG, Sweden , July 2, 2015 ... fingerprint sensors FPC1025, FPC1035, FPC1145 and FPC1155 from the distributor ... is one of FPC,s distributors in Asia ... Q4 2015. The sensors will be used by smartphone manufacturers ... 268 MSEK is included in the communicated revenue guidance of ...
Breaking Biology News(10 mins):Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 2Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 3Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 4Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 5Natural Language Processing Market by Type (Rule-Based, Statistical, and Hybrid), Technologies (Recognition, IVR, OCR, Pattern & Image Recognition) - Worldwide Forecast to 2020 2FPC Receives Order for Touch Fingerprint Sensors of 268 MSEK 2
(Date:7/30/2015)... ... , ... Ralco is honored to announce that it is the primary sponsor ... August 5-9 in Marshall. The Ralco Enrichment Center is an interactive experience where the ... their daily lives. This unique exhibit also features a birthing center for fair goers ...
(Date:7/30/2015)... July 30, 2015 According to ... (Software, Molecular Modeling, PB/PK, PKPD, Trial Design, Toxicity Prediction, ... Preclinical, Clinical Trial), by End Users - Global Forecast ... expected to reach USD 2,107.99 million by 2020 from ... 15.29%. Browse more than ...
(Date:7/30/2015)... COPENHAGEN, Denmark , July 30, 2015 /PRNewswire/ ... a biotechnology company that applies its innovative TransCon ... announced positive top-line results from a six-month Phase ... of once-weekly TransCon Growth Hormone in 53 treatment-naïve, ... "We are extremely pleased with the ...
(Date:7/29/2015)... 30, 2015 Sanofi, a ... the second quarter of 2015. CEO Olivier ... its performance in different businesses. Watch ... http://www.eurobusinessmedia.com/ceo-direct/sanofi/sanofi-h1-2015-results-interview-with-ceo-olivier-brandicourt?utm_source=ceo-direct&utm_medium=wire Topics covered in the ... - Performance drivers - Diabetes ...
Breaking Biology Technology:Ralco Announces Primary Sponsorship of Ralco Enrichment Center at Lyon County Fair 2Biosimulation Market Worth 2,107.99 Million USD by 2020 2Biosimulation Market Worth 2,107.99 Million USD by 2020 3Biosimulation Market Worth 2,107.99 Million USD by 2020 4Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 2Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 3Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 4Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 5Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 6Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 7
Cached News: