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Embryo Current Events | Embryo News

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Differences between parental selection for adoption and embryo donation unfair
The magnitude of the difference between the selection criteria for adoption and embryo donation is unfair and unjustifiable. The procedures should be reassessed, argues an analysis in the Journal of Medical Ethics. The differences hinge on the social and emotional suitability criteria for adoption... view more (2002-05-27)

Scientists discover stage at which an embryonic cell is fated to become a stem cell
Cambridge scientists have discovered the stage at which some of the cells of a fertilised mammalian egg are fated to develop into stem cells and why this occurs.   view more (2007-01-11)

How do you know whether you are male or female?
New research published online this week in the open-access journal PLoS Biology investigates this basic and much-studied question in the fruit fly, and comes to a surprising new conclusion.   view more (2007-12-27)

Toothed Embryo Of Mammoth
For the first time, a well-preserved lower jawbone of a mammoth embryo is found by paleontologist E.N. Mashchenko and his colleagues in the Tomsk area. Judging from the size and structure of the bone, the embryo is from 14 to 16 weeks old, which is the last stage of its development (the pregnancy... view more (2002-06-17)

Digital zebrafish embryo provides the first complete developmental blueprint of a vertebrate
Researchers at the European Molecular Biology Laboratory (EMBL) have generated a digital zebrafish embryo - the first complete developmental blueprint of a vertebrate. With a newly developed microscope scientists could for the first time track all cells for the first 24 hours in the life of a... view more (2008-10-10)

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... view more (2003-06-27)

Weizmann Institute scientists discover how an injured embryo can regenerate itself
More than 80 years have passed since the German scientist Hans Spemann conducted his famous experiment that laid the foundations for the field of embryonic development.   view more (2008-06-26)

The difference between fish and humans: scientists answer century-old developmental question
Embryologists at UCL (University College London) have helped solve an evolutionary riddle that has been puzzling scientists for over a century.   view more (2007-10-11)

Genetic test improves artificial fertilization
Polar body diagnosis can make artificial fertilization more successful, according to Katrin and Hans van der Ven and Markus Montag of Bonn University Clinic.   view more (2008-03-28)

In-vitro fertilization improved with 3-D/4-D-guided embryo transfer and new placement target
Beverly Hills, Calif. and Washington DC (ASRM Annual Meeting) - October 15, 2007 - The pregnancy rate for patients undergoing in-vitro fertilization (IVF) is improved when doctors use advanced 3D/4D imaging to guide the placement of embryos to the point where the endometrium is most receptive to... view more (2007-10-17)

Cracking the egg
Sexual reproduction is not necessarily sexy (especially when scientists start analyzing it), but it is fascinating. As we all know, the basics entail bringing together an egg and a sperm, a whole lot of cell division and growth, and sooner or later a young organism that carries a mix of genes from... view more (2006-10-04)

Taking painkillers during pregnancy increases risk of miscarriage
Women who take non-steroidal anti-inflammatory drugs (NSAIDs) or aspirin during pregnancy increase their risk of miscarriage by 80 per cent, finds a study in this week’s BMJ.   view more (2003-08-12)

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)

Gap junction protein vital to successful pregnancy, researchers find
Researchers studying a critical stage of pregnancy - implantation of the embryo in the uterus - have found a protein that is vital to the growth of new blood vessels that sustain the embryo. Without this protein, which is produced in higher quantities in the presence of estrogen, the embryo is... view more (2008-09-11)

Parthenogenetic stem cells don`t solve embryo ethical problems
The isolation by Advanced Cell Technologies of primate stem cells derived from parthenogenetic embryos represents a significant technical development, but not the ethical breakthrough which the paper hopes for. Indeed it raises some disturbing ethical issues.   view more (2002-02-01)

Therapeutic Cloning No Longer A Dream, Says Scientist Who Produced First Cloned Embryonic Stem Cell
A member of the team who were the first in the world to produce stem cells from a cloned human embryo told the 20th annual conference of the European Society for Human Reproduction and Embryology on Wednesday 30 June that the work could generate potentially unlimited undifferentiated stem cells.... view more (2004-06-30)

First calves from gene diagnosed embryos born at MTT Agrifood Research Finland
Results from quantitative trait gene mapping (QTL) have been utilised for the first time in the selection of bovine embryos. The genotypes of two genes affecting milk yield and composition have been analysed from pre-implantation embryo biopsies. The first four female calves with known milk... view more (2003-08-14)

Generation and regeneration: a scientific media briefing on developmental biology
Might our descendants donate cells at birth which would be stored and grown into bone, skin, blood vessels and cartilage to replace tissues they damaged in accidents? This briefing will discuss how our cells are generated and how much we understand at the moment about regenerating tissues. Embryo... view more (1999-03-23)

World-first study finds that families with babies born after embryo donation are doing well, but only a third of parents plan to tell their children how they were conceived
World-first study finds that families with babies born after embryo donation are doing well, but only a third of parents plan to tell their children how they were conceived Berlin, Germany: The world's first study of families in which babies have been born from donated embryos has revealed that... view more (2004-06-28)

New gene may offer clues to infertility in both cows and women
A newly identified gene that controls embryo development in cows may someday offer clues into the cause of infertility in women.   view more (2007-10-30)

Pregnant women carrying boys need more energy
Pregnant women carrying boys have a 10% higher energy intake than those carrying girls, finds a study in this week’s BMJ.   view more (2003-06-04)

Nutrition a major factor in rise in twin pregnancies
The commonly held view that IVF is the only culprit in the steady increase in the numbers of twins born over the past thirty years was challenged by a scientist speaking at the 22nd annual conference of the European Society of Human Reproduction and Embryology in Prague, Czech Republic.   view more (2006-06-21)

Female Sterility And Local Immunity
Extracorporal fertilisation applied to sterility treatment has become not only a rescue for a lot of women, but also a convenient research method for physicians. The method can help detect previously unknown reasons for female sterility. The number of sterile married couple is growing worldwide: 20... view more (2004-04-16)

IVF Children At Increased Risk Of Neurological Disorders (pp 459, 461)
A Swedish study in this week's issue of THE LANCET suggests that children born after in-vitro fertilisation (IVF) could be at an increased risk of developing neurological problems, especially cerebral palsy. The authors conclude that a reduction in this risk is possible if only one embryo is... view more (2002-02-06)

NYU biologists map out early stages of embryo formation
A team of genomic researchers headed by biologists at New York University's Center for Comparative Functional Genomics, in collaboration with researchers at Harvard University, the Max Planck Institute, and Cenix Biosciences, has mapped out a preliminary molecular diagram of the early stages of... view more (2005-08-11)
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