News tagged with unused embryos


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Scientists identify protein that keeps stem cells poised for action

Biology / Cell & Microbiology

created Dec 24, 2009 | popularity not rated yet | comments 0

Like a child awaiting the arrival of Christmas, embryonic stem cells exist in a state of permanent anticipation. They must balance the ability to quickly become more specialized cell types with the cellular chaos that could ...


Feds mull regulating drugs in water

Space & Earth / Environment

created Dec 22, 2009 | popularity 3 / 5 (2) | comments 1

(AP) -- Federal regulators under President Barack Obama have sharply shifted course on long-standing policy toward pharmaceutical residues in the nation's drinking water, taking a critical first step toward regulating some ...


Researchers revise long-held theory of fruit-fly development

Researchers revise long-held theory of fruit-fly development

Biology / Cell & Microbiology

created Dec 17, 2009 | popularity not rated yet | comments 0

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 ...


Study reveals lack of diversity in embryonic stem cell lines

Biology / Biotechnology

created Dec 16, 2009 | popularity 5 / 5 (1) | comments 0

The most widely used human embryonic stem cell lines lack genetic diversity, a finding that raises social justice questions that must be addressed to ensure that all sectors of society benefit from stem cell advances, according ...


Stem-cell activators switch function, repress mature cells

Medicine & Health / Research

created Dec 16, 2009 | popularity not rated yet | comments 0

In a developing animal, stem cells proliferate and differentiate to form the organs needed for life. A new study shows how a crucial step in this process happens and how a reversal of that step contributes to cancer.


Tendons shape bones during embryonic development

Biology / Cell & Microbiology

created Dec 14, 2009 | popularity not rated yet | comments 0

In all vertebrates, including humans, bones, muscles and tendons work together to give the skeleton its characteristic balance of stability and movement. Now, new research uncovers a previously unrecognized interaction between ...


Mechanism discovered by which body's cells encourage tuberculosis infection

Mechanism discovered by which body's cells encourage tuberculosis infection

Medicine & Health / Research

created Dec 10, 2009 | popularity 4 / 5 (1) | comments 0

Scientists have discovered a signaling pathway that tuberculosis bacteria use to coerce disease-fighting cells to switch allegiance and work on their behalf. Epithelial cells line the airways and other surfaces ...


From fruit fly wings to heart failure -- why Not(ch)?

From fruit fly wings to heart failure -- why Not(ch)?

Medicine & Health / Research

created Dec 10, 2009 | popularity not rated yet | comments 0

Almost a century after it was discovered in fruit flies with notches in their wings, the Notch signalling pathway may come to play an important role in the recovery from heart attacks. In a study published ...


Brooding fishes take up nutrients from their own children

Brooding fishes take up nutrients from their own children

Biology / Plants & Animals

created Dec 08, 2009 | popularity 5 / 5 (2) | comments 0

In the pipefish, the male cares for the offspring. Apart from the ones he sucks the life out of. The discovery of filial cannibalism in the pipefish is now creating a stir in the research world.


Researchers identify new stem cell

Medicine & Health / Research

created Dec 07, 2009 | popularity 5 / 5 (6) | comments 0

(PhysOrg.com) -- Scientists have discovered a new type of stem cell in the skin that acts surprisingly like certain stem cells found in embryos: both can generate fat, bone, cartilage, and even nerve cells. These newly-described ...



List of search results for unused embryos