Frozen Embryos Current Events | Frozen Embryos News
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First study to show that when counting frozen as well as fresh embryos, single embryo transfer does not reduce the chances of having a baby
Doctors in Australia have found that transferring one embryo instead of two during an IVF cycle does not reduce the chances of a woman having a baby, when frozen as well as fresh embryos are taken into account. Dr Jim Catt, Embryology director of Sydney IVF, Australia, and his colleagues have conducted the first study looking at cumulative... view more... (2003-06-27)
Study: Donated embryos could result in more than 2,000 new embryonic stem cell lines
In a survey of more than one thousand infertility patients with frozen embryos, 60 percent of patients report that they are likely to donate their embryos to stem cell research. view more (2007-06-21)
Researchers report technique for freezing and preserving genetically enhanced pig embryos
Researchers led by a University of Missouri-Columbia professor of reproductive biotechnology have reported success in freezing and preserving swine embryos that were created by in vitro techniques and that carried modified genetic material. view more (2006-05-04)
More than half of infertile couples may be willing to donate unused embryos to stem cell research
In a survey of over a thousand patients who have created and frozen embryos as part of fertility treatment, 60 percent said they would be likely to donate unused embryos for stem cell research. view more (2007-06-21)
Largest study of fertility patients shows concerns about embryo disposition
Fertility patients who are done having children feel responsible for the stored, frozen embryos left over from their treatment, yet more than half are against implanting the embryos in anyone else, according to a new study by researchers at Duke University Medical Center. view more (2008-12-04)
ICSI or IVF: Babies born from frozen embryos do just as well
Analysis of the longest running ICSI programme in the United States has found reassuring evidence that babies born from frozen embryos fertilised via ICSI (intracytoplasmic sperm injection) do just as well as those born from frozen embryos fertilised via standard IVF treatment. view more (2009-06-30)
Use eggs, not embryos, to derive stem cells, say researchers
Concerns about the ethics of using embryos created to treat infertile couples for stem cell research is discussed by researchers at St Mary's Hospital, Manchester in this week's BMJ. Although the Human Fertilisation and Embryology Act 1990 allows the creation of embryos for research in the United Kingdom, the House of Lords Select Committee on... view more... (2003-10-08)
Single thawed embryo transfer after PGD does not affect pregnancy rates
Transferring just one embryo at a time to a woman's womb after embryos have undergone preimplantation genetic diagnosis (PGD) and freezing at the blastocyst stage has become a real option after researchers achieved pregnancy rates that were as good as those for blastocysts that had not had a cell removed for PGD before freezing. view more (2009-06-30)
Children born from frozen embryos weigh more and do better than those born after fresh transfer
Children born after a frozen, thawed embryo has been replaced in the womb have higher birth weight than those born where fresh embryos were used. view more (2008-07-08)
Microbiotic technology developed for microinjection of zebrafish embryos
Funded by an NSERC Idea to Innovations grant and an Ontario Early Researcher Award, Prof. Yu Sun's group, the Advanced Micro and Nanosystems Laboratory (http://amnl.mie.utoronto.ca) at the University of Toronto (U of T) recently developed a microrobotic technology for automated microinjection of zebrafish embryos. view more (2007-09-12)
Ethical Guidelines Presented for Swedish Stem Cell Research
In brief, the guidelines mean that researchers may take stem cells from embryos that can no longer be used for further IVF treatment. Moreover, the creation of embryos by somatic cell nuclear transfer (therapeutic cloning) to get access to stem cells is deemed to be ethically defensible. The reason for this is the prospect of major long-term... view more... (2001-12-04)
New method of assessing women's eggs could enhance IVF success, Stanford study shows
Many couples who have trouble conceiving a child have turned to a process known as in vitro fertilization. The resulting embryos are then transferred back into the woman or placed in storage. view more (2009-03-24)
Baby born from sperm frozen for record 21 years
UK researchers writing in Europe's leading reproductive medicine journal Human Reproduction[1], today (Tuesday 25 May) report what they believe to be a world record - a baby born using sperm that had been frozen for 21 years. "We believe this is the longest period of sperm cryopreservation resulting in a live birth so far reported in the... view more... (2004-05-23)
Jackson Laboratory scientists announce mouse sperm cryopreservation breakthrough
A team of Jackson Laboratory scientists have figured out a simple, cost-effective process to freeze mouse sperm and get it to achieve high fertilization rates with mouse eggs. view more (2008-07-30)
What to do with leftover embryos in fertility clinics?
The majority of infertility patients are in favor of using left-over embryos for stem cell research and would also support selling left-over embryos to other couples, according to a recent survey. view more (2008-09-25)
Mayo Clinic researchers recommend embryo transfer delay for at-risk women
Mayo Clinic researchers have determined a method to achieve the best results for the mother's health and birth of a live baby for women who undergo in vitro fertilization who demonstrate risk of ovarian hyperstimulation syndrome. view more (2006-10-25)
Single embryo transfer - a new understanding of factors for success
Berlin, Germany: Transferring a single embryo to a woman can result in a similar number of pregnancies as double embryo transfer, while at the same time reducing the risk of multiple births and the complications due to twin pregnancies, a scientist said today at the 20th annual conference of the European Society of Human Reproduction and... view more... (2004-06-29)
First live rhinoceros birth from frozen-thawed semen
There may be less than 20,000 rhinoceros in the world, with one species perhaps already extinct and another with possibly only four animals remaining in the wild. view more (2008-11-13)
Frozen shellfish to combat pollution
Millions of tiny oysters and mussels are being frozen and stored for the future to help combat marine pollution around Britain’s coast. Until now, testing for pollution using these living indicators could only be done in the summer when the shellfish were reproducing. This new method combines cryogenic technology with a secret recipe of... view more... (2001-11-28)
Changes in chromosomal constitution of preimplantation embryos suggest caution in genetic screening
Embryos that are selected out as abnormal can undergo chromosomal modifications, a scientist will tell the annual conference of the European Society of Human Genetics today. view more (2007-06-19)
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