Duke Researchers Discover Central Role Of Nitric Oxide In Hemoglobin Action
...O is released by endothelialcells on the inside of vessel walls where it migrates to nearby muscle cellsand relaxes them, opening the vessel and lowering blood pressure. At the same time, researchers observed that this free nitric oxide was...Hawaiian Whales Show 'No Overt Response' To Sounds Of ATOC Simulation
...n others," Frankel said. "Some react to a given vessel and some do not. Likewise, we may expect differences in how the whales respond to the ATOC project." Monitoring of marine mammals' behavior must continue when the full-scale ATOC source is operating in Hawaii, Frankel said. One concern is for ...Nitric Oxide May Hold Key To First Treatment For Deadly Form Of Malaria, Duke Scientists Report
... recentyears linking NO with everything from blood vessel dilation to neurotransmissionin the brain to intestinal contraction to penile erection. "Virtuallyeverywhere scientists look in the body, they find NO has a role," Stamlersaid. "This study shows why. NO influences myriad body functions becauseNO is a...Nitric Oxide Found To Control Cells By Turning On Genes; Suggests New Role In Health And Disease
... recentyears linking NO with everything from blood vessel dilation to neurotransmissionin the brain to intestinal contraction to penile erection. "Virtuallyeverywhere scientists look in the body, they find NO has a role," Stamlersaid. "This study shows why. NO influences myriad body functions becauseNO is a...Discovery Channel Returns From Underwater Scientific Expedition Off The Coast Of Cuba
...with a team of Cuban scientists aboard theresearch vessel SEWARD JOHNSON. The scientists made numerous dives in a sophisticated, deep-sea submersible knownas the JOHNSON-SEA-LINK, which is capable of diving up to 3,000 feet below the water's surface. The crew used the latest in digital cameras to record t......ow of atherogenicparticles in and out of the blood vessel wall, what is the rate of proliferationof breast epithelial cells? The new availability of a reliable and safetechnique for measuring T cell production and destruction rates opens up a wholeuniverse of clinical and research questions to direct measur...Salve From Serpents? UD Studies May Explain Why Viper-Venom Protein Stops Tumor Spread In Mice
... Echistatin also interacts with receptors on blood vessel walls--atrick that eristostatin has not mastered. "We want to learn what structuraldifferences allow echistatin to be promiscuous, binding to so many receptors,while eristostatin is so selective," McLane explains. How does she compare the two protei......e in a number of diseases associatedwith new blood vessel growth such as cancer, diabetic retinopathy, macul... topromote the selective obliteration of new blood vessel cells that couldultimately lead to regression of the neovascularization associated with thesediseas...Low B Vitamin Levels Common In Many People Linked To Increased Heart Disease, Stroke Risk
...ed disease, he says. The mechanism for the blood vessel damage is unclear, although other research has suggested that vitamin B-6 deficiency, in addition to raising homocysteine levels, may make the blood more prone to forming the blood clots that can obstruct blood vessels or alter levels of cholesterol.......vasive method to supply the diseased heart with vessel growth promoting factors making use of the prop... acute vascodilatation and may also promote tumor vessel growth. Attempts of vessel growth promoting therapies in the heart have therefore mainly been ...Study Links Viruses And Vascular Diseases
....al., "Murine g-herpesvirus68 causes Severe Large- vessel Arteritis in Mice Lacking Interferon-gResponsiveness: A New Model for Virus-induced Vascular Disease," NatureMedicine, Vol. 3 (12) pp. 1346-1353, December 1997.0...MRI Scans Following Heart Attack Could Determine Future Health
...t of thosewith large heart attacks. Blood vessel blockage also increased the risk of patients' developingheart wall damage. Of the 17 patients who returned for a second MRI scan, fiveof eight patients who had blocked vessels had a thinner heart wall and scartissue. In comparison, none of the nine...Heart and Soul: The Blood Vessels And Brain Use Common Guide
...arch. One isangiogenesis, the process of new blood vessel growth that occurs mostly duringdevelopment, but a...targetof efforts in academia and industry to block vessel growth. In unrelatedclinical trials, VEGF is used to coax blood vessels into sprouting collateralsth...Echocardiography Is Effective In Measuring Microvascular Damage From Heart Attacks
...magnetic resonance imaging atdetecting small blood vessel blockage after a heart attack, according toresearc...ive technique formeasuring post-heart attack small vessel obstruction," says Katherine C. Wu,M.D., lead author of the paper and a cardiology fellow. "CE may ...Biochemist Solves Riddle Of Collagen Stability
...g at collagen as a raw material for heart valve or vessel repair, in reconstructing damaged cartilage or ligaments, and for corneal grafts. Its sheer abundance in the body makes it an exciting and important area for medicine, Raines said. Some scientists have posited that if the body were stripped of every......actor for stroke,which is what happens whena blood vessel serving the brain is blocked by a blood clot or hemorrhages,impairing the flow of oxygen to that part of the brain. About 500,000 Americanssuffer stroke every year. Stroke is the third leading cause of death and theleading cause of disability in the ...HIV Discriminates Amongst Cells
...nals. This allows the cell to migrate across blood vessel walls and squeeze throughsmall spaces," said David H. Schwartz, MD, PhD, associate professor, MolecularMicrobiology and Immunology, Johns Hopkins School of Public Health, whoco-authored the paper with Sujatha Iyengar, PhD, research associate, and Jam......esterol, which carries cholesterol away from blood vessel walls. Does this study indicate that lowering cholesterol with a low fat dietalso will prevent atherosclerosis? "Certainly, we would hope that cholesterollowering, by whatever means, would have a beneficial effect on theatherosclerosis. But ......lstraveled through the catheter into a major blood vessel leading into the liver. Approximately 7 billion cells, comprising about five percent of theliver's total mass, were infused in the course of a 15-hour period. The patientwas discharged from the hospital 20 hours after the cell infusion was co...Researchers Demonstrate That COX-2 Inhibits Angiogenisis In Tumor Cells
...orm tube-like structures, the first steps of blood vessel development.Control cells had little effect. The researchers then studied whether these effects would be inhibited byantibodies to specific angiogenic factors, a selective COX-2 inhibitor calledNS-396 or aspirin. They found antibodies which n...