Tag: "oxide" at medical news
How medical research is taking care of your heart
...ions. More recently, his group showed that nitric oxide
is derived from the blood vessel wall and is responsible for relaxation of blood vessels and hence controlling blood pressure, explaining the actions of many vascular relaxing drugs including Viagra. In the early 1970s, the endothelium, the thin lay...
'Fickle' enzyme helps protect, but also can promote heart failure, animal study shows
Enzymes that make the gas nitric oxide
(NO) not only protect the heart from damage due to high blood pressure or a heart attack, but also promote heart failure through overgrowth and enlargement of the muscle tissue, say animal researchers at Johns Hopkins. The Hopkins study, to be publ...
American Thoracic Society Journal news tips for May 2005 (second issue)
...nd their key indicator levels were: exhaled nitric oxide
levels below 22 parts per billion (ppb) and an abs...entage of sputum eosinophils and an exhaled nitric oxide
level of 22 ppb or greater were the most significant predictors of failed inhaled corticosteroid red...
Newly discovered 'branding' process helps immune system cells pick their fights
...g out chemically unstable compounds such as nitric oxide
and superoxide. Together, these compounds generate peroynitrate, a highly potent chemical that modifies many proteins. Unanue's group showed that this chemical modifies the peptides presented by antigen-presenting cells in several distinct ways. For...
Benefits of nitric oxide vary in preemies, Stanford/Packard researchers say
...he task of living outside the womb. Inhaled nitric oxide
has shown some success in treating full-term infan... 400 tiny preemies has shown that, although nitric oxide
did not improve the odds of survival or decrease the likelihood of long-term lung disease in the gro...
'Heroes of Chemistry' honored for improving health, environment
...0 years, large reductions in hydrocarbon, nitrogen oxide
and carbon monoxide emissions have been achieved in the United States through cleaner burning fuels and improved vehicle technology. Government mandates are now requiring even lower vehicle emissions and lower sulfur fuels. SCANfining selectively rem...
Breath of the dragon: ERS-2 and Envisat reveal impact of economic growth on China's air quality
...Nitrogen dioxide (NO2) is associated with nitrogen oxide
(NO) in the atmosphere and the sum of the two is called NOX. This is released into the troposphere from power plants, heavy industry and road transport, along with biomass burning, lightning in the atmosphere and microbial activity in the soil. The e...
Detecting Alzheimer's in the eye, lifting fingerprints without touching the surface
...ecules on asurface and creates fragments of nitric oxide
(NO), which is presentat various levels in different explosives. A laser then ionizes theNO molecules, so that they become electrically charged and flytowards a detector where they are counted. By measuring the levelsof NO fragments, the researcher...
Scientists breed special rats to learn more about hypertension
...e. Three different enzymes are involved in nitric oxide
formation and the researchers found that estrogen ...of the others. "We conclude that one of the nitric oxide
enzymes may be an important mechanism that causes blood pressure to increase after estrogen depletio...
Flavanols key to potential chocolate benefits
...its and vegetables, can boost the levels of nitric oxide
in the blood of smokers and reverse some of their ...low, possibly related to impairments in how nitric oxide
sends signals to the inner lining, the endothelium, of blood vessels. This impaired endothelial func...
American Thoracic Society journal news tips for October 2005 (first issue)
... to severe allergic asthma by measuring the nitric oxide
levels in the patient's breath, rather than by obs...inhaled corticosteroid treatment on exhaled nitric oxide
levels, while considering symptoms, in 39 asthmatic children who were, on average, age 12. In 46 ch...
Inhaled nitric oxide may help sickle cell disease
Inhaling a small dose of nitric oxide
gas may one day help sickle cell patients avoid pa... and live healthier lives, researchers say. Nitric oxide
may help normalize a sickle cell patient's hemoglobin by restoring the natural charge and shape to t...
University of Georgia team investigates effects of nanoparticles on environment
...hree-year project will look at the effects of zinc oxide
nanoparticles, particularly how available they are...y toxic effects they might have. Manufactured zinc oxide
nanoparticles are one of the most diverse classes of manufactured nanoparticles. The field of nanote...
Gas-blockers might slow down Alzheimer's disease
...t an enzyme that triggers the production of nitric oxide
(NO) -- a gas that helps immune cells fight off invading pathogens -- accelerates the formation of brain lesions in Alzheimer's-prone mice. The study suggests that inhibitors of this enzyme (called iNOS) -- which have already been produced and teste...
Cervical cancer screening programs for low-resource areas appear effective and safe
...cal treatment that involves application of nitrous oxide
to lesions and a device using very low temperatures) of all eligible women with positive test results. Cryotherapy is a relatively low-technology treatment method. These approaches have advantages for low-resource settings because they are not cytolo...
Johns Hopkins celebrates its first century of neuroscience
...ently identified key roles for two gases -- nitric oxide
and carbon monoxide -- as messengers that help brain cells communicate. Some of those studying Systems, Cognitive and Computational Neuroscience are using engineering and computer science to model certain capabilities of the brain, like the processe...
Phenolic compounds may explain Mediterranean diet benefits
...in oxidative stress and the increase in the nitric oxide
bioavailability are behind the observed improvement in ischemic reactive hyperemia," Dr. Prez Jimnez said. Dr. Prez Jimnez said that olive oil may be superior to seed oils because it is a natural juice, pressed from the olives, so it does not go thro...
Drug compound restores youth to aging arterial cells in elderly hypertensives, Hopkins study shows
...other enzymes or related proteins, possibly nitric oxide
and other chemicals causing vessel inflammation, which are essential to regulating heart and blood vessel function. "These results confirm that this drug does have important effects on the aging process in the arteries, but we still have to prove tha...
US heart patients receive more transfusions than international patients
...in the most severely anemic patients. Also, nitric oxide
is essential for delivery of oxygen from the hemog...ells to tissues. However, according to Rao, nitric oxide
has a short half-life, so by the time stored blood has been transfused, the essential nitric oxide
Magnetic probe successfully tracks implanted cells in cancer patients
...y using MRI to detect magnetic probes of tiny iron oxide
particles, an international research team for the ...ally label cells with the clinically approved iron oxide
particles. This new application of the probes -- already clinically approved for MRI scanning of th...
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