June 12, 2013
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A team of researchers is the first to show, in mice, an unexpected two-step process that happens during the growth and regeneration of inner ear tip links. Tip links are extracellular tethers that link stereocilia, the tiny sensory projections on inner… Continue reading
Share on FacebookJune 11, 2013
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Researchers have discovered high concentrations of boron in a Martian meteorite. When present in its oxidized form (borate), boron may have played a key role in the formation of RNA, one of the building blocks for life. Continue reading
Share on FacebookJune 10, 2013
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Changes in an epigenetic mechanism that turns expression of genes on and off may be as important as genetic alterations in causing pediatric acute lymphoblastic leukemia, according to a new study. Continue reading
Share on FacebookJune 5, 2013
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The bacteria that live in the human gut may play an important role in immune response to vaccines and infection by wild-type enteric organisms, according to two recent studies. Continue reading
Share on FacebookMay 22, 2013
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Utilitarian judgment may arise not simply from enhanced cognitive control but also from diminished emotional processing and reduced empathy, according to new research. Continue reading
Share on FacebookMay 16, 2013
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The gene Dkk1 encodes a protein that plays a key role in increasing the population of connective-tissue cells during wound repair, but prolonged Dkk1 signaling in cells lining blood vessels can lead to fibrosis and a stiffening of artery walls. Continue reading
Share on FacebookMay 15, 2013
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Academic researchers have found that breathing motor vehicle emissions triggers a change in high-density lipoprotein (HDL) cholesterol, altering its cardiovascular protective qualities so that it actually contributes to clogged arteries. The finding, s… Continue reading
Share on FacebookMay 14, 2013
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Water gives life. Researchers now show how the cells in our bodies are driven mainly by water power — a discovery that in the long run opens the way for a new strategy in cancer therapy. Continue reading
Share on FacebookMay 12, 2013
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Although genetic factors contribute to congenital heart disease, many children born with heart defects have healthy parents and siblings, suggesting that new mutations that arise spontaneously —- known as de novo mutations —- might contribute to the disease. New research shows that about 10 percent of these defects are caused by genetic mutations that are absent in the parents of affected children. Continue reading
April 19, 2013
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A new global-scale modeling study that takes into account nitrogen — a key nutrient for plants — estimates that carbon emissions from human activities on land were 40 percent higher in the 1990s than in studies that did not account for nitrogen. Plan… Continue reading
Share on FacebookApril 10, 2013
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Researchers have developed and successfully demonstrated a photonic Floquet topological insulator, a new device used to protect the transport of light through a unique, lattice of ‘waveguides.’ This could play a key role in the photonics industry. Continue reading
April 8, 2013
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Controlling the shapes of nanometer-sized catalytic and electrocatalytic particles made from noble metals such as platinum and palladium may be more complicated than previously thought. Continue reading
Share on FacebookApril 8, 2013
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Scientists have discovered new clues about past rapid climate change. The research concludes that oceanographic reorganizations and biological processes are linked to the supply of airborne dust in the Southern Ocean and this connection played a key ro… Continue reading
Share on FacebookApril 2, 2013
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Tiny sea creatures no bigger than a thumbtack are being credited for playing a key role in helping provide healthy habitats for many kinds of seafood, according to a new study. The little crustacean “grazers,” some resembling tiny shrimp, are critical … Continue reading
Share on FacebookMarch 27, 2013
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With DNA from just four cells, researchers reveal how some of the world’s most abundant organisms play a key role in carbon cycling in the seabed. Continue reading
Share on FacebookMarch 25, 2013
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Biologists have found that neural-crest stem cells–multipotent, migratory cells unique to vertebrates that give rise to facial bones, smooth muscle, and other structures — also play a key role in building the nose’s olfactory sensory neurons, the onl… Continue reading
Share on FacebookMarch 25, 2013
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A new psychology study shows people are more supportive of gun control policy when elected officials base their arguments on broader statistics, rather than isolated incidents. Continue reading
Share on FacebookMarch 17, 2013
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Researchers have found that macrophages – white blood cells that play a key role in the immune response – also help to both produce and eliminate the body’s red blood cells (RBCs). The findings could lead to novel therapies for diseases or conditions in which the red blood cell production is thrown out of balance. Continue reading
March 15, 2013
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A new study reveals that motile Escherichia coli isolates demonstrated significant activation of NF-ºB signaling suggesting that flagellin plays a key role in up-regulating the host innate defenses against urinary tract infections. Continue reading
March 8, 2013
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Scientists report that they have eradicated lung tumors in a pre-clinical mouse model. The study demonstrated the elimination of mouse lung tumours by inhibiting Myc, a protein that plays a key role in the development of many different tumours. The res… Continue reading
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