| 单词 | nitric oxide |
| 例句 | Stacey Zimmerman, 25, an advertising account executive and avid runner in New York, consumes protein bars, electrolyte replacement gels but avoids products with creatine and nitric oxide. 2010-01-14T00:15:00Z The scientists discovered that the body uses nitric oxide to make blood vessels widen. Viagra: the little blue pill that revolutionised our sex lives | Observer profile 2017-12-02T05:00:00Z Dr. McCambridge distinguishes between whey protein, which she considers to be a dietary supplement, and performance-enhancing substances like creatine and nitric oxide. 2010-01-14T00:15:00Z One of citrulline's functions within our bodies is to contribute to nitric oxide synthesis. The health benefits of watermelon juice 2022-08-06T04:00:00Z "Several studies have determined that heart disease can be linked to oxidative stress, inflammation, and endothelial damage. Resveratrol has been shown to reduce oxidative stress, stimulate endothelial production of nitric oxide, and inhibit vascular inflammation." These are the best foods for your heart, experts say 2022-02-01T05:00:00Z Take for example the amino acid arginine: This is essential for generating nitric oxide within immune cells, which is an important defense molecule against organisms. Colds, flu and COVID: How diet and lifestyle can boost your immune system 2023-01-16T05:00:00Z Lewis, a professor at Tufts University, has also added to our understanding, discovering that the beetle uses one gas, nitric oxide, to control another, oxygen, to switch the beacons on and off. Humans love fireflies, but we haven’t made life easy for them 2016-07-05T04:00:00Z Reynolds said that helped the team identify the best ratios and methods to release the nitric oxide. Antibacterial material developed for use with internal medical devices such as hip replacements or pacemakers 2023-11-16T05:00:00Z To follow up, the scientists plan to further explore the intricacies of the bond-breaking process and how to optimize the production of nitroxide or nitric oxide. Scientists shed light on potential breakthrough biomedical molecule 2023-10-24T04:00:00Z For the first time, researchers found they had reduced blood and oxygen flow to the brain due to less nitric oxide, which helps blood vessels regulate blood around the body. Concussion: Wales rugby great JPR Williams' fear after study 2023-07-26T04:00:00Z Because the process happens at very high temperatures, it may also lead to higher nitric oxide emissions and lower efficiency. Truckers eye combustion engine future by burning hydrogen 2023-07-24T04:00:00Z They can inhibit production of nitric oxide, a chemical messenger that relaxes artery walls and helps keep the vessels open. Straight from the heart: Mysterious lipids may predict cardiac problems better than cholesterol 2023-03-15T04:00:00Z Working together, the teams combined their two frameworks into a single thin- film membrane to slowly release nitric oxide. Antibacterial material developed for use with internal medical devices such as hip replacements or pacemakers 2023-11-16T05:00:00Z Enovid is a nitric oxide nasal spray that is available in certain countries, including Israel, Indonesia and Bahrain. Opinion | The Checkup With Dr. Wen: What does it mean to hold China ‘accountable’ for covid? 2023-03-02T05:00:00Z Pollutants like nitric oxide and sulfur dioxide build up black crusts on the marble, “like tartar that preludes cavities in teeth,” Mr. Canali said. A High-Maintenance Relationship for 637 Years, but Milan’s Duomo Is Still Adored 2023-02-19T05:00:00Z When you breathe through your nose, your sinuses naturally produce a gas called nitric oxide. Can a Piece of Tape Help You Sleep? 2022-11-28T05:00:00Z One such reaction is the combination of nitric oxide, NO, with ozone, O3: Chemistry 2019-02-14T00:00:00Z A well-known antimicrobial agent that occurs naturally in the body, nitric oxide not only kills bacteria and fungus on contact but continues to do so over an extended period of time. Antibacterial material developed for use with internal medical devices such as hip replacements or pacemakers 2023-11-16T05:00:00Z Melatonin is an effective antioxidant, protecting the CNS from free radicals such as nitric oxide and hydrogen peroxide. Biology for AP Courses 2022-06-09T00:00:00Z Macrophage oxidative metabolism is hostile to intracellular bacteria, often relying on the production of nitric oxide to kill the bacteria inside the macrophage. Anatomy and Physiology 2013-06-19T00:00:00Z These drugs also interfere with the production of nitric oxide, a natural chemical that helps blood vessels relax and dilate. Do strong heartburn drugs promote dementia? 2022-04-13T04:00:00Z The reaction of nitric oxide with oxygen appears to involve termolecular steps: Chemistry 2019-02-14T00:00:00Z Over time, however, scientists have uncovered other functions for the cells, such as managing blood levels of nitric oxide, the molecule that spurs blood vessels to dilate. Red blood cells may be immune sentinels 2021-10-19T04:00:00Z The gas nitric oxide has been identified as a signaling molecule. Biology for AP Courses 2022-06-09T00:00:00Z With sepsis, Mansell said the body commonly creates too much nitric oxide or substance P, which causes more problems for the patient. Wyoming doctor’s patents focus on ways to reduce pain 2021-03-06T05:00:00Z Killing healthy bacteria means less nitrite and nitric oxide in your blood. When the time comes, here’s how to ensure your COVID vaccine has been properly handled 2020-12-16T05:00:00Z Likewise, the reaction of nitric oxide with chlorine appears to involve termolecular steps: Chemistry 2019-02-14T00:00:00Z His specialties at NIH included the chemistry and pharmacology of nitric oxide. Community deaths 2020-10-14T04:00:00Z Laughter releases nitric oxide, a chemical that relaxes blood vessels, reduces blood pressure and decreases clotting, Dr. Miller said. Laughter May Be Effective Medicine for These Trying Times 2020-10-01T04:00:00Z Authorities warned that the smoke could contain chlorine, nitric oxide and other toxins used in industrial and commercial disinfectants and for swimming pool maintenance. Laura devastated a narrow path north of the Gulf Coast, sparing some population centers 2020-08-27T04:00:00Z Other approaches included inhaled nitric oxide and blood plasma. Study Offers Details of U.S. Children Severely Sickened by Coronavirus 2020-05-11T04:00:00Z Notable exceptions are carbon monoxide, CO, nitrous oxide, N2O, and nitric oxide, NO. Chemistry 2019-02-14T00:00:00Z Now, in addition to getting his clinical trial started, Alvarez is caring for a second patient treated with the nitric oxide. Is hydroxychloroquine making COVID-19 clinical trials harder? 2020-04-11T04:00:00Z Some doctors are experimenting with adding nitric oxide to the mix, to help improve blood flow and oxygen to the least damaged parts of the lungs. Some doctors moving away from ventilators for virus patients 2020-04-08T04:00:00Z And that’s it, said Dr. Warren Zapol, a pioneer in the medical uses of nitric oxide and director of Mass General’s Anesthesia Center for Clinical Research. How a discovery that brought us Viagra could help those battling the coronavirus 2020-04-05T04:00:00Z At Massachusetts General Hospital, a team of Harvard doctors is testing the effectiveness of inhaled nitric oxide on coronavirus patients. Covid-19 Changed How the World Does Science, Together 2020-04-01T04:00:00Z Low yields of nitric oxide, NO, form when heating nitrogen and oxygen together. Chemistry 2019-02-14T00:00:00Z MPO also reduces the effectiveness of HDL, the “good” cholesterol, and removes nitric oxide, which is important for the regulation of healthy blood flow. Chronic inflammation is long lasting, insidious, dangerous. And you may not even know you have it. 2020-01-17T05:00:00Z To keep the kids’ dinner fresh, beewolf eggs produce nitric oxide, seen here as bright yellow spots covering the dead bee. Daily briefing: Deep-learning algorithm teaches itself to solve a Rubik’s cube 2019-07-18T04:00:00Z This winter, as he watched the new coronavirus known as SARS-CoV-2 spread across the globe, Berra dusted off those studies, talked to the companies that supplied nitric oxide in tanks, and readied his plan. How a discovery that brought us Viagra could help those battling the coronavirus 2020-04-05T04:00:00Z The researchers found that beewolf eggs produce nitric oxide, seen here as bright yellow spots covering the dead bee. Suns, sloths and spy satellites — June’s best science images 2019-07-03T04:00:00Z When copper reacts with dilute nitric acid, nitric oxide is the principal reduction product: Chemistry 2019-02-14T00:00:00Z Iron creates a visual record of its tasty mischief by teaming up with smoke-conveyed gases like nitric oxide to leave a thin ring of pink graffiti beneath the outer walls of the meat’s surface. The Science of Barbecue 2019-06-03T04:00:00Z Excess free hemoglobin will therefore rob the blood of nitric oxide, constrict blood vessels and potentially cause hypertension and reduced blood flow to the organs. Icefish Study Adds Another Color to the Story of Blood 2019-05-06T04:00:00Z In 1992, the journal Science named nitric oxide “molecule of the year.” How a discovery that brought us Viagra could help those battling the coronavirus 2020-04-05T04:00:00Z And then, over the next several hours, some of the nitrite is further reduced to nitric oxide in the gut. Beet juice gains traction as an evidence-based aid for athletes 2019-03-22T04:00:00Z Gaseous nitric oxide is the most thermally stable of the nitrogen oxides and is the simplest known thermally stable molecule with an unpaired electron. Chemistry 2019-02-14T00:00:00Z Those who did resistance training would have produced less of a substance, nitric oxide, that is thought to affect the activity of telomerase and contribute to lengthening telomeres. Is Aerobic Exercise the Key to Successful Aging? 2018-12-12T05:00:00Z Heme has even greater affinity for nitric oxide than oxygen, and the body uses nitric oxide as a signaling molecule to control blood pressure. Icefish Study Adds Another Color to the Story of Blood 2019-05-06T04:00:00Z In humans, nitric oxide is naturally generated by 60 trillion cells that line our blood vessels, and by some brain cells as well. How a discovery that brought us Viagra could help those battling the coronavirus 2020-04-05T04:00:00Z Nitrite also enters the blood and bodily tissues, where it is enzymatically reduced to nitric oxide. Beet juice gains traction as an evidence-based aid for athletes 2019-03-22T04:00:00Z This process involves the oxidation of ammonia to nitric oxide, NO; oxidation of nitric oxide to nitrogen dioxide, NO2; and further oxidation and hydration of nitrogen dioxide to form nitric acid: Chemistry 2019-02-14T00:00:00Z Researchers concluded there was a link between exposure to nitric oxide from car exhaust during pregnancy and greater incidence of childhood ASD. Researchers say air pollution may increase risk of autism 2018-12-09T05:00:00Z Zhou and colleagues now show that nitric oxide protects kidneys from ischaemic damage. Metabolism reprogrammed by the nitric oxide signalling molecule 2018-11-27T05:00:00Z Inhaled nitric oxide relaxes those vessels, increasing the transfer of oxygen to the blood and easing the heart’s workload. How a discovery that brought us Viagra could help those battling the coronavirus 2020-04-05T04:00:00Z So they hypothesize that this pathway is particularly important during exercise as a backup system to ensure that enough nitric oxide gets made in muscles and other tissues. Beet juice gains traction as an evidence-based aid for athletes 2019-03-22T04:00:00Z For example, although NO is often called nitric oxide, its proper name is nitrogen monoxide. Chemistry 2019-02-14T00:00:00Z For example, those cells normally emit nitric oxide, which relaxes blood vessels and reduces blood pressure—and immune cells inhibit nitric oxide production. Can targeting immune cells offer new way to combat hypertension? 2018-02-28T05:00:00Z In a clever set of biochemical studies, they showed that nitric oxide modifies specific cysteine residues of pyruvate kinase M2. Metabolism reprogrammed by the nitric oxide signalling molecule 2018-11-27T05:00:00Z Like nitric oxide, Viagra, known generically as sildenafil, dilates blood vessels. How a discovery that brought us Viagra could help those battling the coronavirus 2020-04-05T04:00:00Z And a 1997 study in The Lancet showed that on the skin, nitrite in saliva is converted to nitric oxide, which is antimicrobial. How Dog and Cat 'Kisses' Can Turn Deadly 2017-10-24T04:00:00Z Burning ammonia is the commercial method of preparing nitric oxide. Chemistry 2019-02-14T00:00:00Z They found that if you do acupuncture correctly, your body releases more nitric oxide at the points where the needles are inserted. What’s happening in your body during acupuncture? 2017-07-01T04:00:00Z This is one of the key findings of the study: pyruvate kinase M2 is a target of nitric oxide. Metabolism reprogrammed by the nitric oxide signalling molecule 2018-11-27T05:00:00Z "No other harmful gases like nitric oxides, soot or sulphuric oxides are emitted." Ant power: Take a ride on a bus that runs on formic acid - BBC News 2017-06-26T04:00:00Z Among the innovations was a system that sprays ammonia into a vehicle’s exhaust system to remove nitric oxide, one of the most harmful pollutants in diesel exhaust. G.M. Accused in Lawsuit of Deceit on Diesel Truck Emissions 2017-05-25T04:00:00Z In the laboratory, the reduction of nitric acid is the best method for preparing nitric oxide. Chemistry 2019-02-14T00:00:00Z Belly laughing releases endorphins, triggering receptors in blood vessels to produce nitric oxide, which in turn, dilates blood vessels, increases blood flow, reduces the risk of blood clots, and more. To take care of your heart, even little changes can help 2017-02-17T05:00:00Z The authors found that ischaemia causes less damage in these mice than in wild-type mice, consistent with the idea that pyruvate kinase mediates the protective effects of nitric oxide. Metabolism reprogrammed by the nitric oxide signalling molecule 2018-11-27T05:00:00Z These increase the availability of nitric oxide which controls blood pressure. Does prosecco have health benefits? - BBC News 2016-12-02T05:00:00Z Also, the researchers found that the more alcohol heavy drinkers consumed, the lower the level of nitric oxide. Heavy Drinking Might Harm the Lungs 2016-08-05T04:00:00Z At room temperature, nitric oxide is a colorless gas consisting of diatomic molecules. Chemistry 2019-02-14T00:00:00Z As a result, the concentration of nitric oxide is elevated in gases from the colons of people with inflammatory bowel disease86, 87, 88. Interactions between the microbiota and pathogenic bacteria in the gut : Nature : Nature Publishing Group 2016-07-05T04:00:00Z The authors therefore conclude that nitric oxide inhibits pyruvate kinase and glycolysis, causing glucose levels to increase. Metabolism reprogrammed by the nitric oxide signalling molecule 2018-11-27T05:00:00Z BlueTEC is a filter system which uses urea to help rid exhaust fumes of health threatening nitric oxides. Mercedes diesel owners file new lawsuit in United States 2016-04-08T04:00:00Z He added that further research is needed to learn more about the interaction between alcohol and nitric oxide in the airways. Heavy Drinking Might Harm the Lungs 2016-08-05T04:00:00Z Commercially, it is possible to prepare nitrogen dioxide by oxidizing nitric oxide with air. Chemistry 2019-02-14T00:00:00Z The drugs contain nitric oxide, which opens blood vessels and relaxes muscles. Men, Avoid Impotence Drugs Before Surgery 2016-03-21T04:00:00Z This reprogramming of metabolism represents a major new aspect of nitric oxide biology. Metabolism reprogrammed by the nitric oxide signalling molecule 2018-11-27T05:00:00Z It increases the nitric oxide made by arteries, which allows them to expand and carry more blood when circumstances demand. We all know exercise makes you live longer. But this will actually get you off the couch. 2016-02-22T05:00:00Z The study is the first to find a link between excessive drinking and nitric oxide, according to the researchers. Heavy Drinking Might Harm the Lungs 2016-08-05T04:00:00Z "And an important factor that regulates blood flow to the eye is a substance called nitric oxide." Green, Leafy Vegetables Each Day May Help Keep Glaucoma at Bay 2016-01-14T05:00:00Z The nitric oxide sensor worked for 400 days in mice, which to Strano's knowledge is the longest any implanted chemical sensor has been in place, and did so without provoking any immune response. The inside story on wearable electronics 2015-11-30T05:00:00Z The first component is S-nitroso-coenzyme A, a molecule that donates nitric oxide groups to target proteins. Metabolism reprogrammed by the nitric oxide signalling molecule 2018-11-27T05:00:00Z The juice contains nitrate, which the body converts to nitric oxide, the compound that keeps arteries limber. Beet Juice Could Help Body Beat Altitude 2015-10-21T04:00:00Z The direct effect of exercise, according to Gray, appears to be increased levels of nitric oxide, a molecule that triggers blood vessels to open up. Whistle … and Walk … While You Work 2015-10-08T04:00:00Z Green leafy vegetables contain nitrates, which are precursors to nitric oxide, the researchers said. Green, Leafy Vegetables Each Day May Help Keep Glaucoma at Bay 2016-01-14T05:00:00Z Nitrogen oxides, which include nitric oxide and nitrogen dioxide, are not the only tailpipe emissions to cause concerns. Automakers Ask Europe for Leniency in Emissions Testing 2015-10-02T04:00:00Z These exciting results show that S-nitroso-coenzyme A reductase acts in vivo in mammals to control nitric oxide signalling, which is the third major discovery of the study. Metabolism reprogrammed by the nitric oxide signalling molecule 2018-11-27T05:00:00Z Sinuses also help control the amount of nitric oxide in the body and in the lungs. 7 Surprising Facts About Your Nose 2015-09-23T04:00:00Z Nitrates are processed into nitric oxide by the body, which helps relax blood vessels and improve metabolism. Beet Juice Boosts Muscle Power in Heart Patients 2015-09-21T04:00:00Z Cialis works by blocking PDE5, an enzyme that breaks down a substance called nitric oxide that promotes dilation of blood vessels. Impotence Drug Aids Treatment of Rare Lung Disease: Study 2015-08-26T04:00:00Z Chemists are developing tiny devices made from carbon nanotubes wrapped with polymers to detect biologically important compounds such as insulin, nitric oxide and the blood-clotting protein fibrinogen. Nanotube implants show diagnostic potential 2015-08-20T04:00:00Z The treatment is nitric oxide, a substance produced and used throughout the human body. Experimental Treatment Uses Nitric Oxide for Acne 2015-07-31T04:00:00Z In a monthlong pilot project last year in Denver, Street View cars equipped with Aclima sensors measured levels of smog ingredients, including nitrogen dioxide, nitric oxide, ozone, carbon monoxide and volatile organic compounds. Google Street View Soon to Picture Local Pollution Too 2015-07-30T04:00:00Z These photons are not efficiently absorbed in the epidermis and penetrate more deeply, initiating the production of nitric oxide. Go ahead, soak up some sun 2015-07-24T04:00:00Z With more nitric oxide available, the arteries feeding the lungs are better able to dilate, increasing blood flow. Impotence Drug Aids Treatment of Rare Lung Disease: Study 2015-08-26T04:00:00Z The nitric oxide sensors also performed well when injected into the bloodstreams of mice, successfully passing through small capillaries in the lungs, which are an area of concern for nanotube toxicity. Nanotube implants show diagnostic potential 2015-08-20T04:00:00Z Nitrogen dioxide and nitric oxide are among the chief culprits listed by the CAA. What's it like to live near an airport? - BBC News 2015-07-01T04:00:00Z The research theorizes that proton pump inhibitors may reduce production of nitric oxide from cells that line the inside of the circulatory system, including the heart. Common heartburn medications linked to greater risk of heart attack 2015-06-10T04:00:00Z The nitric oxide causes smooth muscle relaxation, leading to a widening of blood vessels and lower blood pressure. Go ahead, soak up some sun 2015-07-24T04:00:00Z "Now, given the underlying biology and the effect of these drugs in reducing nitric oxide in the blood vessel walls, the observed association is not super surprising," Shah told Reuters Health by email. Certain Heartburn Drugs Linked to Increased Risk of Heart Attack 2015-06-10T04:00:00Z Iverson, who is starting her own lab at the University of Nebraska–Lincoln, plans to further develop the nitric oxide sensors for cancer treatments. Nanotube implants show diagnostic potential 2015-08-20T04:00:00Z The nitric oxide result is reported by Jennifer Stern and colleagues in this week's edition of the journal Proceedings of the National Academy of Sciences. Curiosity Mars rover detects 'useful nitrogen' 2015-03-25T04:00:00Z The researchers monitored their rate of exhaled nitric oxide, a marker of airway inflammation. Beliefs Can Trigger Asthma Attacks 2015-03-18T04:00:00Z Better blood vessel function means more nitric oxide, and more nitric oxide means better erections. Can Dietary Changes Improve Erectile Dysfunction? 2015-02-17T05:00:00Z One popular idea is that hemoglobin binds with and delivers nitric oxide to cells, sending signals to regulate growth. Sugar Beets Make Hemoglobin 2015-02-01T05:00:00Z Immune cells detect the infection and respond by releasing chemicals such as nitric oxide and histamines, which destroy the viral invaders and call other immune cells into action. What does measles actually do? 2015-01-30T05:00:00Z Levels of nitric oxide, known to be involved in relaxing and widening blood vessels, increased significantly in the blueberry eaters. Blueberries May Lower Blood Pressure 2015-01-14T05:00:00Z "Nitrosomonas eutropha taking over my skin now metabolizes ammonia into odorless nitrite and nitric oxide. Success!" The creator of Soylent stopped pooping to use less water 2014-10-27T04:00:00Z Beets are one of nature’s richest source of nitrates, a dietary compound that can be converted into nitric oxide and therefore improve function of blood vessels throughout the body. Can Dietary Changes Improve Erectile Dysfunction? 2015-02-17T05:00:00Z They suggested that the higher nitric oxide levels may be responsible for widening peripheral arteries and improving the patients' ability to walk. Could Dark Chocolate Help Ease Poor Leg Circulation? 2014-07-02T04:00:00Z Researchers say the banner removes harmful nitric oxide from the air, absorbing the pollution from around 20 cars a day. The poster that 'soaks up' pollution 2014-05-19T04:00:00Z The researchers turned plants into sensors by embedding carbon nanotubes that were engineered to fluoresce in response to nitric oxide, a pollutant from combustion. Implants Could Produce Botanical Steve Austins 2014-03-19T03:59:00Z Foliage with nanotubes fluoresce under infrared light, but stop emitting light in the presence of nitric oxide, a compound common both to plants and pollution. Bionic Plants Offer Superpowered Photosynthesis 2014-03-16T18:01:00Z As luck would have it, dietary choices and exercise can improve nitric oxide levels. Can Dietary Changes Improve Erectile Dysfunction? 2015-02-17T05:00:00Z The researchers found that levels of nitric oxide, a gas linked to improved blood flow, were higher after eating dark chocolate. Could Dark Chocolate Help Ease Poor Leg Circulation? 2014-07-02T04:00:00Z Blood tests showed that UVA exposure caused a release of nitric oxide from the skin into the bloodstream. Well: Sunshine May Benefit Blood Pressure 2014-01-23T17:42:43Z Over a century later, J. R. Parington tried to replicate the test and concluded that “…it is almost impossible to get these simple ratios in mixing nitric oxide and air over water.” The Replication Myth: Shedding Light on One of Science s Dirty Little Secrets 2013-12-04T23:15:51.986Z It helps to increase the levels of nitric oxide in the body. How can an athlete enhance performance legally? 2013-11-23T00:55:16Z This compound, a nitroimidazole, poisons mycobacteria by releasing nitric oxide once it is metabolized. Drug development: A combined effort 2013-10-09T17:20:55.343Z Exposure of glioma cells to perivascular nitric oxide reversibly promotes their ability to form tumours. Tumour heterogeneity and cancer cell plasticity 2013-09-18T17:21:13.347Z Lead also inactivates a molecule known as nitric oxide and impairs the kidney, both of which are essential to regulating blood pressure. Overlooked: Thousands of Americans Exposed to Dangerous Levels of Lead in Their Jobs 2013-09-16T13:17:39.627Z Male that happen to lack the gene for making that enzyme are particularly aggressive compared with those who have the gene and hence have normal amounts of nitric oxide. Touching a Nerve: Exploring the Implications of the Self as Brain, Part 2 [Excerpt] 2013-07-27T13:45:00.477Z By itself?It took lots of countries much coordinated effort to curb sulpher and nitric oxides. Sea levels rising - but how quickly? 2013-05-14T17:01:14Z Production of the pressure-reducing compound, nitric oxide, is separate from the body's manufacture of vitamin D, which rises after exposure to sunshine. Benefits of sun 'may outweigh risks' 2013-05-07T23:24:25Z Production of the pressure reducing compound, called nitric oxide, is separate from the body's manufacture of vitamin D, which rises after exposure to sunshine. Benefits of sun 'may outweigh risks' 2013-05-07T23:24:25Z It has also noted that Sherpas have high levels of nitric oxide in their blood, and is experimenting with raising levels of nitric oxide in the blood of patients. Five daredevils who helped science 2012-10-15T12:51:35Z There is some evidence for an interaction between an important neurotransmitter in the reward system, dopamine, and nitric oxide. Touching a Nerve: Exploring the Implications of the Self as Brain, Part 2 [Excerpt] 2013-07-27T13:45:00.477Z The theory is that cocoa contains flavanols which produce a chemical in the body called nitric oxide. Chocolate 'lowers blood pressure' 2012-08-15T10:04:32Z Jackson said that's not surprising since blood vessels may become less elastic as people age, and would be less likely to react to the nitric oxide. Flavanol-rich cocoa may reduce blood pressure a bit 2012-08-14T23:03:49Z They contain nitrates, which the body converts into nitric oxide, a powerful molecule that dilates the blood vessels, allowing more oxygen and nutrients to reach your hard-working muscles. The New Health Foods: What to Eat Now 2012-07-24T19:18:00Z Some of these recombine into nitric oxide, and this in turn reacts with other atmospheric chemicals, occasionally producing a molecule made up of three oxygen atoms—ozone, or O3. Storm Scents: It's True, You Can Smell Oncoming Summer Rain 2012-07-18T22:15:00.237Z A balance of the two is associated with control over aggression, but exactly how nitric oxide interacts with elements such as testosterone or serotonin is not understood. Touching a Nerve: Exploring the Implications of the Self as Brain, Part 2 [Excerpt] 2013-07-27T13:45:00.477Z Nitric oxide activates the cells that remodel bone, and nitroglycerin is a source of nitric oxide. People's Pharmacy: Statins and memory loss 2012-01-11T22:13:03Z Potassium, on the other hand, activates nitric oxide and thus reduces pressure in the arteries, lowering the risk of hypertension. Personal Health: High Sodium-to-Potassium Ratio in Diet Is a Major Heart Risk 2011-12-26T17:39:15Z Water is produced by this action, which in time dilutes the acid, and orange colored poisonous fumes of nitric oxide rise from the battery. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z The gaseous mixture obtained by burning guncotton in a vacuum vessel contains steam, carbon monoxide, carbon dioxide, nitrogen, nitric oxide, and methane. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6 "Groups, Theory of" to "Gwyniad" 2011-12-16T03:00:12.320Z Encouraged by the results of these experiments, Davy proceeded to prepare and breathe nitric oxide—whereby he was rendered very ill—and then carburetted hydrogen—which nearly killed him. Heroes of Science Chemists 2011-12-09T03:00:21.047Z Nitroglycerin, which treats impaired cardiac function through vasodilation as it is converted to nitric oxide, is used worldwide for patients with various ischemic and congestive cardiac diseases, including angina pectoris. [Research Articles] ALDH2 Activator Inhibits Increased Myocardial Infarction Injury by Nitroglycerin Tolerance 2011-11-02T18:55:19.893Z Murad chose the bench, and he subsequently discovered that nitric oxide acts as a signalling molecule in the cardiovascular system. Bench or Bedside? A Conversation with Ferid Murad 2011-10-05T22:15:00.253Z The benefits probably stem from chocolate’s high content in polyphenols, antioxidant compounds that boost the body’s production of nitric oxide, which in turn helps reduce blood pressure, the researchers wrote. A Little Chocolate Goes a Long Way in Keeping Healthy Heart 2011-08-29T15:45:13Z Under very great pressures carbon monoxide, steam and nitrogen are the main products, but nitric oxide never quite disappears. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6 "Groups, Theory of" to "Gwyniad" 2011-12-16T03:00:12.320Z Dr. Pijnenburg said that the breath analyzers used to detect nitric oxide are expensive, however — and that the results, while useful, are not applicable to all asthma patients. Novelties: Beyond the Breathalyzer: Seeking Telltale Signs of Disease 2011-07-02T16:55:02Z In their experiment, Helden and colleagues rubbed an ointment containing nitric oxide around the spot where mice were injected with lethal doses of snake venom and found that it slowed lymph flow significantly. Cream may buy time for snake bite victims 2011-06-26T17:04:59Z The flames of phosphorus in oxygen and of carbon disulphide in nitric oxide contain only gaseous products, and Frankland showed that the flames of hydrogen and carbon monoxide became highly luminous under pressure. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 4 "Finland" to "Fleury, Andre" 2011-03-20T02:00:30.697Z The two enzymes work in tandem to regulate the production of nitric oxide, a gas that relaxes blood vessels. Mouse Study Reveals Mechanism behind Diabetes Blood Vessel Damage 2011-02-18T15:15:04.180Z It is looking for nitric oxide, which is produced when the lungs are inflamed. House call 2010-12-27T01:30:55Z Specifically, they looked to see if humming led to greater levels of exhaled nitric oxide, a gas produced in the sinuses. Really?: The Claim: Humming Can Ease Sinus Problems 2010-12-20T17:29:51Z "MSC produce nitric oxide that kill bacteria, but the amount is not sufficient to kill the TB bacteria, it just keeps them in check," Das said. Some stem cells protect TB bacteria: study 2010-12-06T19:20:00Z The damage may occur because nitric oxide affects photoreceptor function and metabolism, the doctors said. Vital Signs: Vision: A Quick High for Sex May Damage Vision 2010-10-18T21:20:00Z Workouts increase the production of nitric oxide, a gas that relaxes and dilates blood vessels. How to Keep your arteries young 2010-10-15T18:25:00Z One leading theory is that stored blood gradually loses its ability to get oxygen to tissues, largely through loss of a blood vessel dilator called nitric oxide. Tests aim to settle if fresher blood works better 2010-07-26T22:31:00Z Another study a year later in The European Respiratory Journal found a similar effect: humming resulted in a large increase in nasal nitric oxide, “caused by a rapid gas exchange in the paranasal sinuses.” Really?: The Claim: Humming Can Ease Sinus Problems 2010-12-20T17:29:51Z For each child, the researchers measured the level of nitric oxide in exhaled breath, which is thought to reflect the degree of inflammation in the airways. Toss out the inhaler if you outgrow asthma? Not so fast 2010-07-08T21:19:00Z But nitric oxide is so reactive, and thus short-lived, that delivering it is difficult. Observatory: Seeking Safe Ways to Deliver Nitric Oxide in Medical Care 2010-03-15T20:17:00Z High levels of nitric oxide, she proposed, might set off degenerative diseases like A.L.S., and cells treated with low levels of the gas might build resistance. Debating a Murder Suspect?s Worth to Science 2010-02-22T21:54:00Z Bismuth trichloride forms double compounds with hydrochloric acid, the chlorides of the alkaline metals, ammonia, nitric oxide and nitrosyl chloride. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" Thus sodium will not react with dry chlorine or dry oxygen; carbon, sulphur and phosphorus will not burn in perfectly dry oxygen, neither does nitric oxide give red fumes of the peroxide. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" "Pancake flour" often contains little if any buckwheat; wheat flour is bleached with nitric oxide to improve its appearance. The Holy Earth A mixture of carbon bisulphide vapour and nitric oxide burns with a very intense blue-coloured flame, which is very rich in the violet or actinic rays. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" The first products of this reaction are copper nitrate and nitric oxide, but, as the concentration of the copper nitrate increases, nitrous oxide and, eventually, free nitrogen are liberated. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" Cobalt burns in nitric oxide at 150� C. giving the monoxide. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" Sulphuretted hydrogen and nitric oxide were discovered at about the same time. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" A few substances like phosphorus, which have a very strong affinity for oxygen and which are burning energetically in the air, will continue to burn in an atmosphere of nitric oxide. An Elementary Study of Chemistry Nitrates are best detected and determined by their yielding nitric oxide when treated with sulphuric acid and a suitable reducing agent, such as ferrous sulphate, mercury, or copper. A Text-book of Assaying: For the Use of Those Connected with Mines. It decomposes when heated to 90�; with water it gives nitric oxide and cupric nitrate and nitrite. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" Finally, make a London fog by burning turpentine and sulphur, adding a little sulphuric acid, either directly as vapor or indirectly by a trace of nitric oxide, and then blowing in steam. Scientific American Supplement, No. 443, June 28, 1884 Group V.: N, trivalent and pentavalent, but divalent in nitric oxide; P, As, Sb, Bi, trivalent and pentavalent, the last being possibly divalent in BiO and BiCl2. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" This gas, as we have just seen, is formed by allowing nitric oxide to come into contact with oxygen. An Elementary Study of Chemistry This is based upon the measurement of the nitric oxide evolved on shaking up a weighed quantity of the nitrate with sulphuric acid over mercury in a nitrometer. A Text-book of Assaying: For the Use of Those Connected with Mines. This solution is employed for the absorption of the nitric oxide. Scientific American Supplement, No. 561, October 2, 1886 The contents of the tube are filtered and washed, the filtrate is oxidised with permanganate, and the nitrogen determined as nitric oxide by the Schultze-Tieman method. Nitro-Explosives: A Practical Treatise Among its old pupils was included Sir Humphry Davy, born in 1778, the eminent chemist who was the first to employ the electric current in chemical decomposition and to discover nitric oxide or "laughing gas." From John O'Groats to Land's End What weight of copper is necessary to prepare 50 l. of nitric oxide under standard conditions? An Elementary Study of Chemistry Heat gently for a few minutes, and then boil until the nitric oxide is expelled. A Text-book of Assaying: For the Use of Those Connected with Mines. When it becomes apparent, from the light color of the liquid in B, that all of the nitric oxide has been expelled from it, the current of carbon dioxide is increased and the heating discontinued. Scientific American Supplement, No. 561, October 2, 1886 The acid mixture may be taken by volume for determining nitric oxide in nitrometer. Nitro-Explosives: A Practical Treatise The air comes out of the arc, charged with about one per cent. of nitric oxide, and after that—" "Jump the details, idiot! The Air Trust Unlike nitrous oxide, nitric oxide does not part with its oxygen easily, and burning substances introduced into this gas are usually extinguished. An Elementary Study of Chemistry The nitric oxide is driven out by heat, and the solution then shows by its color the presence of ferric compounds. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes One molecule of permanganate equals one molecule of nitric oxide when manganous sulphate is used, since no part of the permanganate employed in this method is reduced below the superoxide condition. Scientific American Supplement, No. 561, October 2, 1886 The acids used must be strong, that is, the nitric acid must be at least of a gravity of 1.53 to 1.52, and should contain as little nitric oxide as possible. Nitro-Explosives: A Practical Treatise It is because of this catalytic role which nitric oxide plays in the destruction of ozone that it is important to consider the effects of high-yield nuclear explosions on the ozone layer. Worldwide Effects of Nuclear War: Some Perspectives In this case the nitric oxide loses all of its oxygen and the nitrogen is set free as gas. An Elementary Study of Chemistry Care must be taken, however, not to admit too strong a current of carbon dioxide, lest some of the nitric oxide should be forced unabsorbed through the permanganate solution. Scientific American Supplement, No. 561, October 2, 1886 When all of the nitric oxide has been forced into the solution of permanganate, the determination is made in the manner already described. Scientific American Supplement, No. 561, October 2, 1886 On treatment with a solution of ferrous chloride, nitric oxide and "soluble" starch are regenerated. Nitro-Explosives: A Practical Treatise What would be the effects of nitric oxides driven into the stratosphere by an all-out nuclear war, involving the detonation of 10,000 megatons of explosive force in the northern hemisphere? Worldwide Effects of Nuclear War: Some Perspectives It has been estimated that as much as 5,000 tons of nitric oxide is produced for each megaton of nuclear explosive power. Worldwide Effects of Nuclear War: Some Perspectives According to the recent National Academy of Sciences study, the nitric oxide produced by the weapons could reduce the ozone levels in the northern hemisphere by as much as 30 to 70 percent. Worldwide Effects of Nuclear War: Some Perspectives In consequence of the large volume of the permanganate solution required for the complete absorption of the nitric oxide, we have found it advantageous to use three solutions instead of two. Scientific American Supplement, No. 561, October 2, 1886 |
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