Duke Researchers Discover Central Role Of Nitric Oxide In Hemoglobin Action
...y diseases are treated. "We now know that nitric oxide is involved in the blood's major functions,"...y organ. The same picture is gradually emergingfor nitric oxide (NO). Understanding delivery of both in concert could haveprofound therapeutic implications. ...Nitric Oxide May Hold Key To First Treatment For Deadly Form Of Malaria, Duke Scientists Report
...ty Medical Centerreports finding that the chemical nitric oxide is a universal signalingmolecule that can co...w cellular signaling mechanism -- the attachmentof nitric oxide (NO) to a key portion of a protein called a thiol -- thatcan directly activate genes. The wor...Nitric Oxide Found To Control Cells By Turning On Genes; Suggests New Role In Health And Disease
...ty Medical Centerreports finding that the chemical nitric oxide is a universal signalingmolecule that can co...w cellular signaling mechanism -- the attachmentof nitric oxide (NO) to a key portion of a protein called a thiol -- thatcan directly activate genes. The wor...Medicinal Leech May Offer Clues To Neural Regeneration
...and research assistant Orie Shafer have found that nitric oxide synthase, or NOS, is activated when parts of...tion in vertebrates." When activated, NOS produces nitric oxide, a gas that in recent years has been recognized to act as a signaling molecule in vertebrates,...New Mechanism To Explain Carbon Monoxide Poisoning Identified
...dioxide binds tothe same sites on heme proteins as nitric oxide," notes Thom. Nitric oxide (NO)is a much-stu...ain cells and othertissues. "The amount of nitric oxide in the cell interior rises because carbonmonoxide usurps the spot of nitric oxide on the heme ...Engineering Our Arteries: Replacements And Assisted Healing
...ated on the arteries and that release nitric oxide, a key chemical that reduces clotting and assists in the healing process. She aims to apply the polymer through the catheter that is used to do the balloon angioplasty. The technique could prevent the need...Study Shows: Just Say NO To Bone Loss
...g, she probably didn't have the versatile molecule nitric oxide in mind.The molecule is found throughout the...at. For instance, human cells produce one form of nitric oxideas a weapon against invading bacteria, but very high concentrations of themolecule can make NO ......n, internal organs, and bloodvessels. Like the gas nitric oxide, which helps regulate neural function, bloodpressure, and many other processes, H2S is produced in the brain and ininvoluntary smooth muscle. An understanding of the role of H2S in these tissuesmay have many therapeutic applications, for exampl...High-Altitude Cerebral Edema Likely Caused By Leaks In Blood-Brain Barrier
..., cyclic guanosine monophosphate (cGMP), acts with nitric oxide, a vasodilator, to promote and sustain permeability of the blood-brain barrier. The combined influence of actions could allow fluid to accumulate in the intracellular spaces, he said. Yet another mechanism that may be at work involves ele...Fetal Lead Exposure May Reduce Immunity
...ted immune function, as well as elevated levels of nitric oxide tumor necrosis factor and IgE antibodies. These are all indications, in the complex checks-and-balances realm of immunity, of a developing body that is ill-equipped to fend off infectious diseases and cancers while controlling the body's incli...Vitamin C May Reduce Angina, Heart Attack Risks
...ility of a naturally-produced compound inthe body, nitric oxide, that helps relax blood vessels, inhibits th...ving aheart attack or stroke. Studies suggest that nitric oxide can be "inactivated" by superoxideradicals, which are the reactive oxygen compounds often pres...Scientists Discover How Bacteria Protect Themselves Against Immune System
... a protein in bacteria, protects the bacteria from nitric oxide(NO), a toxic chemical secreted by the immune.... The protein, which the researchers havere-named nitric oxide dioxygenase (NOD), detoxifies NO, providing protectionagainst infection. "It's a breakthrough...Research Answers Burning Questions About Pollution
...es and determine the amount of pollutants, such as nitric oxide, that are produced during combustion. ... "In our latest work, we measured the amount of nitric oxide produced in spray flames, a process where liquid fuel sprays through a small hole to form dr...Clean Air Act Reduces Acid Rain In Eastern U.S.
...phere combine with water to form sulfuric acid and nitric acid,respectively. These acids, mixed with rainwater, fall to Earth as acid rain,snow or fog and can acidify lakes and streams in the Northeast. This can affecta wide variety of other terrestrial and aquatic ecosystems as well as culturaland material...Virginia Tech Scientist Seek Genetic Solution To Malaria
...e response of mosquitoes involvesthe production of nitric oxide; humans also produce nitric oxide in response tomalaria infection." The toxic nitric oxide kills some of the parasites ......eloping world. 10. Nobel Prize for discovery of nitric oxide: present and future implications for treatin...rdiovascular disease and stroke "The discovery of nitric oxide and its function is one of the most important in the history of cardiovascular medicine," says...Mechanical forces found to exert larger role in blood vessel health and disease
...ducesnitric oxide in response to shear stress, and nitric oxide is believed to be akey intermediate in the cell signaling cascade for both shear stress and VEGF,according to their recent paper. Tarbell, who directs Penn State's Biomolecular Transport Dynamics Option forgraduate study in the Life Sciences C...Nearby supernova may have caused mini-extinction, scientists say
...mic-ray flux would produce additionalstratospheric nitric oxide that could depletethe ozone and expose the biosphere to the harmful effects of ultravioletradiation. "There is fossil evidence for a couple of mini-extinctions during the CenozoicEra," Fields said. "One occurred about 13million years ago; the o...Researchers discover hemoglobin's enzymatic nature
... guard against atmospheric gases such as oxygenand nitric oxide, but they may also provide new ideas for way... worm. "In humans, hemoglobin delivers oxygen and nitric oxide to tissues," saidStamler. According to the new data, however, the nematode hemoglobin uses nit...Scientists look for signs of pollution in the superhighway in the sky
...og. The key chemical in creating ozone is nitric oxide, a byproduct ofaircraft and rocket exhaust, said Dr. Anne Thompson, a Goddard Space FlightCenter (Greenbelt, Md.) atmospheric scientist who led the study as part ofNASA's Atmospheric Affects of Aviation Experiment. Increasing the amount ofnitro...