News tagged with embryo development
How chromosomes meet in the dark -- Switch that turns on X chromosome matchmaking
Biology /
Dec 27, 2008 |
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A research group lead by scientists at the University of Warwick has discovered the trigger that pulls together X chromosomes in female cells at a crucial stage of embryo development. Their discovery could also provide new ...
Female human embryos adjust the balance of X chromosomes before implantation
Jun 29, 2009 |
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Dutch researchers have found the first evidence that a process of inactivating the X chromosome during embryo development and implantation, which was known to occur in mice but unknown in humans, does, in fact, take place ...
Preimplantation genetic diagnosis may pose neurological risks
Jul 21, 2009 |
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Preimplantation genetic diagnosis (PGD) has helped many couples conceive healthy children and is generally considered a safe practice. However, a new long-term analysis of PGD in mice suggests that this procedure may increase ...
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Embryo implantation offers insight into infertility
Sep 30, 2008 |
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(PhysOrg.com) -- A process that governs embryo implantation in the womb in humans has been identified for the first time. The Oxford University research, published in the journal PNAS, could shed light on what goes wrong ...
Scientists discover how an injured embryo can regenerate itself
Jun 26, 2008 |
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[B]Keep its organs in relative proportion[/B] 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. After div ...
Secrets in a seed: Clues into the evolution of the first flowers
Sep 14, 2009 |
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Approximately 120-130 million years ago, one of the most significant events in the history of the Earth occurred: the first flowering plants, or angiosperms, arose. In the late 1800s, Darwin referred to their development ...
The difference between fish and humans: Scientists answer century-old developmental question
Biology /
Oct 10, 2007 |
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Embryologists at UCL (University College London) have helped solve an evolutionary riddle that has been puzzling scientists for over a century. They have identified a key mechanism in the initial stages of an embryo’s development ...
Digital zebrafish embryo provides the first complete developmental blueprint of a vertebrate
Biology /
Oct 09, 2008 |
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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 ...
A 'lab on a chip' to improve success of in vitro fertilization
Sep 01, 2008 |
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In a finding that could boost the success rate of in vitro fertilization (IVF), researchers report development of a tiny "lab on a chip" to evaluate the fitness of embryos harvested for transfer. A report ...
Jumping genes discovery 'challenges current assumptions'
Jun 12, 2009 |
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Jumping genes do most of their jumping, not during the development of sperm and egg cells, but during the development of the embryo itself. The research, published this month in Genes and Development, "challenges standard assump ...
How do you know whether you are male or female?
Biology /
Dec 27, 2007 |
2.9 / 5 (35) |
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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.
Researchers revise long-held theory of fruit-fly development
Dec 17, 2009 |
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For decades, science texts have told a simple and straightforward story about a particular protein—a transcription factor—that helps the embryo of the fruit fly, Drosophila melanogaster, pattern tissues in a m ...
Gap junction protein vital to successful pregnancy, researchers find
Sep 10, 2008 |
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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, ...
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