Posts Tagged ‘embryo’
Embryo: When (and where) arms, legs grow
NYU (US) — Biologists have identified a protein that plays a critical role in how early embryos develop, ensuring arms and legs grow in the right place at the right time. Continue…
Wednesday, October 26, 2011 10:55 - 1 Comment
Health & Medicine - Oct 11, 2011 12:16 - 1 Comment
How to pick ‘best bet’ eggs for IVF
BROWN (US) — A new procedure that gathers genetic information from eggs without harming them may offer a preview of which eggs are likely to make the most viable embryos for in vitro fertilization. (more…)
Science & Technology - Aug 24, 2011 14:15 - 0 Comments
How embryos escape the chaos monster
PRINCETON (US) — Newly fertilized cells only narrowly avoid degenerating into fatal chaos, a new study shows. (more…)
Health & Medicine - Aug 12, 2011 8:29 - 0 Comments
How gut grows is simple physics
CORNELL (US) — Embryos face a tight squeeze when it’s time to pack in internal organs, but with a little help from simple mechanical forces between neighboring types of tissue, they’re able to take shape and grow. (more…)
Health & Medicine - Jul 7, 2010 8:27 - 0 Comments
Measuring DNA identifies hardiest embryos
U. WARWICK (UK)—Scientists have for the first time directly measured a specific region of DNA in human embryos that could be used as a quality marker for embryonic development. (more…)
Health & Medicine - Jun 3, 2010 15:28 - 0 Comments
Protein crucial for successful pregnancy
YALE (US)—Healthy embryos contain a unique protein that directs attachment and helps the mother adapt to pregnancy by modulating maternal immunity and influencing the remodeling of uterine cells. (more…)
Science & Technology - Mar 12, 2010 13:33 - 1 Comment
Fighting proteins guide embryo development
PRINCETON (US)—Protein competition over an important enzyme provides a mechanism to integrate different signals that direct early embryonic development. (more…)
Health & Medicine - Jan 19, 2010 11:05 - 0 Comments
Rock-a-bye embryo to improve in vitro rates
U. MICHIGAN—Gently rocking embryos while they grow during in vitro fertilization (IVF) improves pregnancy rates in mice by 22 percent, new research shows. (more…)
Science & Technology - Dec 18, 2009 11:07 - 0 Comments
What’s the new story on fruit flies?
A) This cross-section of an early Drosophila embryo shows the levels of the transcription factor Dorsal, which is present in a nuclear gradient. B) The predominant view in the field had been that different levels of Dorsal support the expression of distinct target genes along the dorsal-ventral axis of embryos. C) The Caltech team found that levels of nuclear Dorsal cannot account for the fact that the gene ind ceases to be expressed in dorsal regions of the embryo.
Earth & Environment - Sep 24, 2009 20:06 - 0 Comments
Breed a better cow from the embryo up
IOWA STATE (US)—A team of researchers is working to determine the genetic makeup of calves by testing before they are born, or even earlier—before pregnancy. (more…)
Health & Medicine - Jun 11, 2009 11:56 - 1 Comment
Gene therapy to rein in stem cells gone wild
Human embryonic stem cells
Health & Medicine - Mar 12, 2009 14:01 - 0 Comments
Hope for newborns found in heart’s early beginning
CORNELL (US)—Congenital heart defects are the most common malformations in newborns born in the United States, and in most cases, scientists don’t know why the defects occur. Treatment options, including valve replacement surgery, come with a host of drawbacks for tiny infants. Jonathan Butcher, assistant professor of biomedical engineering at Cornell University, studies embryonic heart valve development from the very beginning of the process with hopes that a greater understanding will lead to new treatments. (more…)
