New way to protect brain from stroke damage
.... A type of cardiovascular disease, stroke affects arteries of the brain. In ischemic stroke, the most common form, a blood vessel that carries oxygen and nutrients to the brain becomes blocked by a clot. As a result, part of the brain fails to get the oxygen it needs, a condition that damages nerve cells. Th...Maine-based biophysics institute gets funding for first US-based 4Pi nanoscale microscope
... growth factor can prevent reocclusion of coronary arteries after angioplasty. We are confident that this fruitful collaboration with the physicists in the IMB will reveal many as yet unsuspected discoveries of value to the medical community." The National Science Foundation grant for the acquisition of the 4...Recent evolution at a single gene may have brought down heart disease risk in some human groups
...ore prone to atherosclerosis, the narrowing of the arteries associated with the accumulation of plaque in the arterial walls. The new research shows that the high-expression variant increased rapidly in frequency in the ancient European population, though not elsewhere. The rapid increase, which is estimated ...Bright idea could doom cancer and viruses, say Purdue scientists
... possible to thread a fiberoptic cable through the arteries and flood a tumor with light. Some lasers are also capable of shining through tissue without damaging it, and they might also be candidates for light delivery." The compound - known as DPPZPHEN, an abbreviation of its long chemical name - also has po...'Smart gene therapy' protects against damage from heart attack
...tion and tissue injury. Ischemia also can occur in arteries of the kidneys, lungs, liver or the brain, where i... blood flow to the animals' organs by clamping key arteries for a period of an hour and then examining the organs for evidence of injury. Inducing ischemia and ...Most Americans not sure about the sources of high cholesterol
...n the blood can build up on the inner walls of the arteries that supply blood to the heart. These deposits form plaque, which can cause the arteries to narrow, making them less efficient at transporting blood. This condition, called atherosclerosis...New pulmonary hypertension guideline challenges use of common medication
... a life-threatening condition that occurs when the arteries that supply blood to the lungs become constricted,...used in patients with PAH whose narrowed pulmonary arteries are not caused by dynamic vessel constriction, the side effects can be fatal," said Panel Chair Lewi...'Trap' crop saves Texas cross timbers melon production
...enly and simultaneously developed severely clogged arteries and a digestive blockage. Worse, the disease would often not become evident until the melons were nearly mature. A week or so before harvest, the grower would look out upon his fields and see a healthy, profitable crop. Practically overnight, vines ...UCLA researchers recreate patterns formed by mammalian cells
...rns. Researchers grew stem cells from adult bovine arteries and found that they produce intricate, lace-like patterns in culture dishes. Such patterns are known to be created in nature by a process called reaction-diffusion discovered by Alan Turing, the mathematician famous for his role in breaking the Naz...Researchers report major advance in gene therapy technique
...ation of diabetes. The disorder results in damaged arteries and, frequently, the subsequent amputation of toes...oncentrate on veins. "Injecting any substance into arteries carries a degree of risk since, unlike veins, only one artery feeds a whole limb," notes Wolff. In ...When blood can't get to brain, special CT scan helps
... opposite side of the brain. Clogs in the carotid arteries are caused by the same cholesterol-laden plaque th... suffer a stroke after having one of their carotid arteries permanently closed. Perfusion CT may also help when a patient has a stroke that's caused by blockage...Two dinosaurs from Africa give clues to continents' split
...ng of scales or surface armor and was riddled with arteries and veins, leaving a crisscross of grooves on the skull. "It's not the kind of head designed for fighting or bone-crushing," Sereno said. Instead, he believes Rugops was a scavenger, using its head to pick at carrion rather than fighting other animal...Atherosclerosis treatment needs to go with the flow
Branch points in the arteries are a common area of atherosclerotic disease, resulting in the occlusion of both branches. These branch points can generally be defined as a main branch and a side branch, and, in treating the disease, the question of what is the optimal course of a...JCI table of contents, 1 June 2004
...nt Needs to Go with the Flow Branch points in the arteries are a common area of atherosclerotic disease, resulting in the occlusion of both branches. These branch points can generally be defined as a main branch and a side branch, and, in treating the disease, the question of what is the optimal course of a......ge of diseases, including the calcification of the arteries that afflicts us all as we age. Others say they ar...f nanobacterial-like structures in human calcified arteries and cardiac valves", the paper by John Lieske and his team describes how they isolated minuscule cel...Could vitamins raise levels of bad cholesterol? Animal study suggests they might
...e been shown in some animal studies to protect the arteries from atherosclerosis and the pancreas and other organs from damage caused by diabetes. "In other words, oxidant stress is damaging in some contexts, but probably beneficial in others," he says. "In terms of the risk of cardiovascular disease," he ad...Activity of calcium-handling gene appears to prevent cardiac arrhythmias
...o six days later, each rat had one of its coronary arteries tied off for 30 minutes and then reopened, producing the kind of heart-muscle injury that can occur with a heart attack. EKG measurements of the rats' heart rhythm were taken throughout the experiment and for 24 hours afterwards. Two days after the c...Gene links hereditary intestinal disorder with stroke danger
...fects characteristic of HHT. In HHT patients, some arteries shunt blood directly to veins, rather than diffusing the flow through capillary networks. The high-pressure blood flow in such junctures makes the vessels susceptible to breaks and bleeding. The investigators collected blood samples from seven famili...Breaking the rules on artifical blood
...rent blood substitutes release their oxygen in the arteries instead of in the capillaries like normal blood. This early release can itself trigger vasoconstriction. Winslow's company has put these ideas to the test with a blood substitute called MP4. It contains haemoglobin molecules coated with polyethylene......of spinal cord injury level on carotid and femoral arteries (pg 89) The effect of SCI level on the carotid (neck) and femoral (thigh) arteries is explored in this manuscript. From a lying position, volunteers with and without SCI were asked to...