(Phys.org)—Stanford scientists have developed a fluorescence imaging technique that allows them to view the pulsing blood vessels of living animals with unprecedented clarity. Compared with conventional ...
Dec 02, 2012
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(Phys.org)—A University of British Columbia researcher has helped create a gel – based on the mussel's knack for clinging to rocks, piers and boat hulls – that can be painted onto the walls of blood vessels and stay ...
Dec 11, 2012
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(Phys.org)—The most common form of strokes are caused by a sudden reduction in blood flow to the brain (ischemia) that leads to an inadequate supply of oxygen and nutrients. These so-called ischemic strokes ...
Sep 14, 2012
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Atherosclerosis, resulting in a narrowing of the arteries and the development of cardiovascular disease, is the leading cause of death worldwide. Until now, no treatment could target diseased areas exclusively, in order to ...
Jun 10, 2012
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(PhysOrg.com) -- A British team of researchers led by Professor Hassan Ugail of Bradford University have demonstrated a new type of lie-detector at the annual British Science Festival in Bradford. Instead of hooking people ...
Sep 14, 2011
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A new bacterium that uses caffeine for food has been discovered by a doctoral student at the University of Iowa. The bacterium uses newly discovered digestive enzymes to break down the caffeine, which allows it to live and ...
May 24, 2011
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(PhysOrg.com) -- A small turbine located inside a millimeters-wide human artery could harvest enough energy from blood flow to power implanted medical devices, such as pacemakers and drug-delivery pumps. The ...
May 20, 2011
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(PhysOrg.com) -- By combining sophisticated mathematical techniques more commonly used by spies instead of scientists with the power and versatility of functional magnetic resonance imaging (fMRI), a Penn ...
Mar 28, 2011
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Implantable electronic devices potentially offer a rapid and accurate way for doctors to monitor patients with particular medical conditions. Yet powering such devices remains a fundamental challenge: batteries ...
Mar 27, 2013
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A short walk around the barn might improve the future fertility of Yorkshire gilts. According to research presented by Samantha Kaminski, a graduate student at North Dakota State University, swine fetuses showed significant ...
Mar 12, 2013
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As a human fetus develops, its heart has to keep pace with the new body's ever-growing demands. Much of this is controlled by following genetic blueprints, but the embryonic heart also matures in response ...
Oct 31, 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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Neurosurgeons at the Krembil Neuroscience Centre, Toronto Western Hospital, have for the first time, initiated the restoration of lost brain tissue through brain bypass surgery in patients where blood flow to the brain is ...
Apr 18, 2011
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UT Southwestern Medical Center researchers have identified one reason people with hypertension experience an even greater increase in their blood pressure when they exercise, and they've learned how to prevent the rise.
Apr 04, 2011
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Erectile dysfunction is a common topic today - at least for TV advertisers. The three main drugs - Viagra, Cialis, Levitra - each has a "signature" image.
Mar 28, 2011
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