Pluripotent stem cells can turn, or differentiate, into any cell type in the body, such as nerve, muscle or bone, but inevitably some of these stem cells fail to differentiate and end up mixed in with their newly differentiated ...
Apr 22, 2013
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Humans survive by constantly recycling iron, a metal that is an essential component of red blood cells, but which is toxic outside of those cells. More than 90 percent of the iron in an adult human's 25 trillion life-sustaining ...
Feb 05, 2013
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Cilia, microscopic whip-like organelles that protrude from the surface of many cell types, are almost ubiquitous. They are present in all eukaryotes—organisms whose cells have a nucleus—and have diversified ...
Jan 02, 2013
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Scientists at Karolinska Institutet in Sweden have identified two molecules that play an important role in the survival and production of nerve cells in the brain, including nerve cells that produce dopamine. The discovery, ...
Dec 23, 2012
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(Phys.org)—Ethologists – those who study animal behavior under natural conditions – have long recognized that groups of various species, or animal collectives, use a variety of decision-making system ...
Dec 18, 2012
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(Phys.org)—Probiotics like those found in yogurt are not only good for people—they are also good for fish. A new study by scientists at the Institute of Marine and Environmental Technology found that ...
Dec 03, 2012
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A tiny, translucent zebrafish that glows green when its liver makes glucose has helped an international team of researchers identify a compound that regulates whole-body metabolism and appears to protect obese mice from signs ...
Dec 02, 2012
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Scientists have developed robot-fish that can interact intelligently with live zebrafish according to a study published in Journal of the Royal Society Interface today.
Nov 15, 2012
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Johns Hopkins researchers have succeeded in teaching computers how to identify commonalities in DNA sequences known to regulate gene activity, and to then use those commonalities to predict other regulatory ...
Nov 05, 2012
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How the intricate network of blood vessels forms within the brain has long fascinated biologists. Though the human brain comprises only 2 percent of body weight it receives up to 15 percent of the cardiac output through this ...
Aug 14, 2012
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In mammals, most lipids (such as fatty acids and cholesterol) are absorbed into the body via the small intestine. The complexity of the cells and fluids that inhabit this organ make it very difficult to study in a laboratory ...
Jun 28, 2012
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A bioinspired robot has provided the first experimental evidence that live zebrafish can be influenced by engineered robots.
Jun 07, 2012
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Microscopes provide valuable insights in the structure and dynamics of cells, in particular when the latter remain in their natural environment. However, this is very difficult especially for higher organisms. ...
May 16, 2012
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