HOME >> BIOLOGY >> NEWS
First baby is born after oocytes were matured in the lab and frozen

Lyon, France: The first baby to be created from an egg that had been matured in the laboratory, frozen, thawed and then fertilised, has been born in Canada. Three other women are pregnant by the same process. The research was presented to the 23rd annual meeting of the European Society of Human Reproduction and Embryology today (Monday 2 July).

The baby girl was born to one of 20 patients with polycystic ovarian syndrome (PCOS) or with ovaries that had been detected to be polycystic by ultrasound (U/S), who took part in the trial at McGill Reproductive Center, Montreal, Canada. The baby is progressing well.

Dr Hananel Holzer, who led the team, is an assistant professor at the Center and coordinates the fertility preservation programme there [1]. He said: Freezing a womans eggs (or oocytes) has become an important and integral part of fertility treatment, and the introduction of new freezing techniques such as oocyte vitrification has increased significantly both oocyte survival and resulting pregnancy rates. However, to date, the pregnancies reported have been the result of fertilisation of frozen or vitrified and then thawed oocytes that had been collected after ovarian stimulation. Unfortunately, some patients seeking fertility preservation may not have enough time to undergo ovarian simulation, or may suffer from a medical condition deemed by some oncologists as a relative contraindication to hormonal stimulation, such as oestrogen-receptor-positive breast cancer.

In these circumstances, oocytes can be collected from the ovaries without hormonal stimulation, and the immature oocytes can be matured in the laboratory before being frozen or vitrified. But, until now, it was not known whether oocytes collected from unstimulated ovaries, matured in vitro and then vitrified, could survive thawing, be fertilised successfully and result in a viable pregnancy after embryo transfer.

We have demonstrated for the first time that it
'"/>

Contact: Emma Mason
wordmason@mac.com
European Society for Human Reproduction and Embryology
2-Jul-2007


Page: 1 2 3

Related biology news :

1. First case of successful ovarian tissue transplantation between two, nonidentical sisters
2. First new multiple sclerosis gene found in 30 years
3. First genome-wide study of infectious disease opens new avenues for HIV treatment, vaccines
4. First all-African produced genetically engineered maize is resistant to maize streak virus
5. First confirmed common genetic risk factors for breast cancer
6. First demonstration of new hair follicle generation in an animal model
7. First research to show that diabetes damages DNA in mens sperm and may affect fertility
8. First demonstration of muscle restoration in an animal model of Duchenne muscular dystrophy
9. First systematic study of Chinas one-child policy reveals complexity, effectiveness
10. First international conference on self-healing materials
11. First impressions: Computer model behaves like humans on visual categorization task

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/13/2017)... 2017 UBM,s Advanced Design and Manufacturing event ... emerging and evolving technology through its 3D Printing and ... alongside the expo portion of the event and feature ... focused on trending topics within 3D printing and smart ... event will take place June 13-15, 2017 at the Jacob ...
(Date:4/11/2017)... 11, 2017 Crossmatch®, a globally-recognized leader ... today announced that it has been awarded a ... Activity (IARPA) to develop next-generation Presentation Attack Detection ... "Innovation has been a driving force within Crossmatch ... allow us to innovate and develop new technologies ...
(Date:4/11/2017)... 11, 2017 No two people are ... the New York University Tandon School of Engineering ... found that partial similarities between prints are common ... mobile phones and other electronic devices can be ... vulnerability lies in the fact that fingerprint-based authentication ...
Breaking Biology News(10 mins):
(Date:4/20/2017)... ... April 20, 2017 , ... USDM Life Sciences , the leading ... healthcare industries, is pleased to announce Holger Braemer as Vice President of ... GmbH” based in Germany. , Braemer is an integral part of USDM’s expansion ...
(Date:4/20/2017)... ... , ... Parallel6™ , the leader in mClinical™ technologies for improving patient ... one of the 2017 Top 10 eClinical Trial Management Solution Providers by Pharma ... “We take pride in honoring Parallel6 as one of the top 10 companies that ...
(Date:4/19/2017)... ... April 18, 2017 , ... The Vibrating Orifice Aerosol Generator ... generating monodisperse droplets of known diameters for research applications such as for calibrating ... by drying monodisperse droplets. , The VOAG requires forcing liquid out of ...
(Date:4/19/2017)... , ... April 19, 2017 , ... ... Series A-1 financing round. This event adds to several other early achievements at ... Executive and Scientific Teams. , ThermaGenix will use proceeds from the ...
Breaking Biology Technology:
Cached News: