Posts Tagged ‘blood vessel’
‘Stunningly clear’ view of blood vessels
STANFORD (US) — A new technique that uses carbon nanotubes and lasers allows researchers to view pulsing blood vessels of living animals with unprecedented clarity. Continue…
Friday, November 30, 2012 12:27 - 1 Comment
Health & Medicine - Feb 1, 2011 22:47 - 0 Comments
Stretchy arteries grown in the lab
U. PITTSBURGH (US) — By using muscles cells from baboons, researchers have grown arteries that exhibit unprecedented levels of elasticity for vessels grown outside the body. (more…)
Health & Medicine - Jul 12, 2010 10:59 - 8 Comments
How water helps us lose weight
VANDERBILT (US)—Ordinary water—without any additives—does more than just quench thirst. It increases the activity of the sympathetic—fight or flight—nervous system, which raises alertness, blood pressure, and energy expenditure. (more…)
Health & Medicine - Jun 8, 2010 10:09 - 0 Comments
Clotted capillaries spit to survive
NORTHWESTERN (US)—Capillaries have a unique method of expelling debris, such as blood clots, cholesterol or calcium plaque, that blocks the flow of essential nutrients to brain cells. (more…)
Science & Technology - May 19, 2010 17:29 - 1 Comment
Workouts strengthen endothelial cells’ grasp
U. PENN (US)—Bioengineers have demonstrated that the cells that line blood vessels respond to mechanical forces—the microscopic tugging and pulling on cellular structures—by reinforcing and growing their connections, thus creating stronger adhesive interactions between neighboring cells. (more…)
Health & Medicine - Dec 29, 2009 11:18 - 0 Comments
Protein key to blood pressure sensors
U. IOWA (US)—A protein channel helps nerve sensors in blood vessels keep blood pressure in check, new research shows. Without the protein channel, known as ASIC2, the sensors are unable to send the brain the signals it needs to properly control blood pressure. (more…)
Health & Medicine - Oct 20, 2009 15:21 - 2 Comments
Depression may raise heart disease risk
EMORY (US)—Depression tends to reduce coronary flow reserve, resulting in a greater risk of heart disease for people who suffer from it, according to a new study. The findings also suggest genetic susceptibility influences which individuals have an increased risk. (more…)
Health & Medicine - Oct 7, 2009 13:24 - 2 Comments
Drug may help suffocate cancer cells
EMORY—A fast growing tumor eventually outpaces its blood and oxygen supply, which drives cancer cells to send out signals that attract new blood vessels. Now, researchers have identified a chemical that stops cells for responding to low oxygen. (more…)
Health & Medicine - Sep 28, 2009 11:50 - 1 Comment
Therapy breaks barrier to repair brain damage
U. IOWA (US)—Researchers have discovered a nonsurgical way to treat a specific type of brain damage by turning the very blood vessels surrounding brain cells into a production and delivery system. (more…)
Health & Medicine - Sep 16, 2009 19:07 - 4 Comments
Blood vessel growth’s an inside job
UNC CHAPEL HILL (US)—Researchers have found that blood vessels contribute to their own growth by sprouting new vascular networks, similar to the way a tree grows new branches. (more…)
Health & Medicine - Mar 9, 2009 18:31 - 0 Comments
Plaque buildup may be linked to stiffening arteries
CORNELL (US)—Joints are not the only parts of our body that stiffen as we age. Our blood vessels do, too. In more than half of the U.S. population over 65, this stiffening of the blood vessels is accompanied by a buildup of plaque inside arterial walls, known as atherosclerosis, which can increase the risk of a heart attack.
