News tagged with nitric oxide
Light-induced delivery of nitric oxide eradicates drug-resistant bacteria
Researchers at the University of California, Santa Cruz, have developed a novel approach for eradicating drug-resistant bacteria from wounds and skin infections, using light to trigger the controlled release of nitric oxide. ...
May 30, 2012 |
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Scientists solve a mystery of bacterial growth and resistance
Scientists at The Scripps Research Institute have unraveled a complex chemical pathway that enables bacteria to form clusters called biofilms. Such improved understanding might eventually aid the development ...
Apr 26, 2012 |
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New study sheds light on evolutionary origin of oxygen-based cellular respiration
Researchers at the RIKEN SPring-8 Center in Harima, Japan, have clarified the crystal structure of quinol dependent nitric oxide reductase (qNOR), a bacterial enzyme that offers clues on the origins of our ...
Jan 22, 2012 |
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Bacteria forge nitrogen from nitric oxide: Scientists unravel key pathway in the nitrogen cycle
The anaerobic oxidation of ammonia (anammox) is an important pathway in the nitrogen cycle that was only discovered in the 1980s. Currently, scientists estimate that about 50 percent of the nitrogen in the atmosphere is forged ...
Oct 05, 2011 |
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Environmentally friendly rockets
(PhysOrg.com) -- Many rockets, satellites, and spacecraft are driven by hydrazine, sometimes with an oxidizing agent like nitric acid or dinitrogen tetroxide. When filling tanks with these highly toxic substances, ...
May 27, 2011 |
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Watching Venus glow in the dark
(PhysOrg.com) -- ESA’s Venus Express spacecraft has observed an eerie glow in the night-time atmosphere of Venus. This infrared light comes from nitric oxide and is showing scientists that the atmosphere of ...
Space & Earth / Space Exploration
Feb 24, 2009 |
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Drug boosts snakebite survival time by half: study
Rubbing snakebites with an ointment that slows the functioning of lymph glands could boost survival times by 50 percent, according to a study released Sunday.
Medicine & Health / Medications
Jun 26, 2011 |
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Embryo's heartbeat drives blood stem cell formation
(PhysOrg.com) -- Biologists have long wondered why the embryonic heart begins beating so early, before the tissues actually need to be infused with blood. Two groups of researchers from Children's Hospital ...
Medicine & Health / Medical research
May 13, 2009 |
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Topical erectile dysfunction therapy shows promise (w/ Video)
An innovative drug-delivery system - nanoparticles encapsulating nitric oxide or prescription drugs - shows promise for topical treatment of erectile dysfunction (ED), according to a new study by scientists ...
Nanotechnology / Bio & Medicine
Sep 19, 2009 |
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Research reveals key to world's toughest organism
(PhysOrg.com) -- A new study by Cornell researchers uncovers the details of how the world's toughest bacterium survives lethal radiation exposure.
Oct 19, 2009 |
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Portable and precise gas sensor could monitor pollution and detect disease
(PhysOrg.com) -- In the air, it is a serious pollutant. In the body, it plays a role in heart rate, blood flow, nerve signals and immune function.
Chemistry / Analytical Chemistry
Sep 25, 2009 |
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Portable and precise gas sensor could monitor pollution and detect disease
In the air, it is a serious pollutant. In the body, it plays a role in heart rate, blood flow, nerve signals and immune function. Nitric oxide, a gas well known to scientists for its myriad functions, has ...
Sep 18, 2009 |
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Scientists help explain effects of ancient Chinese herbal formulas on heart health
New research at The University of Texas Health Science Center at Houston suggests that ancient Chinese herbal formulas used primarily for cardiovascular indications including heart disease may produce large ...
Medicine & Health / Medical research
Aug 18, 2009 |
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Study pinpoints new role of molecule in the health of body's back-up blood circulation
When the arteries delivering oxygen to our vital organs are obstructed by atherosclerosis or clots, the result is almost always a stroke, heart attack or damage to a peripheral tissue such as the legs (peripheral ...
Medicine & Health / Medical research
May 26, 2010 |
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Algae species explored for both biofuel source and pollution control
(PhysOrg.com) -- The tiny, plant-like Heterosigma akashiwo is too small to see with the naked eye, but the microscopic algae may pack a big environmental punch. University of Delaware researchers are studying ...
Mar 14, 2012 |
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Nitric oxide
Nitric oxide or nitrogen monoxide is a chemical compound with chemical formula NO. This gas is an important signaling molecule in the body of mammals, including humans, and is an extremely important intermediate in the chemical industry. It is also an air pollutant produced by cigarette smoke, automobile engines and power plants.
NO is an important messenger molecule involved in many physiological and pathological processes within the mammalian body both beneficial and detrimental. Appropriate levels of NO production are important in protecting an organ such as the liver from ischemic damage. However sustained levels of NO production result in direct tissue toxicity and contribute to the vascular collapse associated with septic shock, whereas chronic expression of NO is associated with various carcinomas and inflammatory conditions including juvenile diabetes, multiple sclerosis, arthritis and ulcerative colitis.
Nitric oxide should not be confused with nitrous oxide (N2O), a general anaesthetic and greenhouse gas, or with nitrogen dioxide (NO2) which is another air pollutant. The nitric oxide molecule is a free radical, which is relevant to understanding its high reactivity.
Despite being a simple molecule, NO is a fundamental player in the fields of neuroscience, physiology, and immunology, and was proclaimed “Molecule of the Year” in 1992.
For more information about Nitric oxide, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
