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Biological functions of nitric oxide information


Biological functions of nitric oxide are roles that nitric oxide plays within biology.

Nitric oxide (nitrogen monoxide) is a molecule and chemical compound with chemical formula of NO. In mammals including humans, nitric oxide is a signaling molecule involved in several physiological and pathological processes.[1] It is a powerful vasodilator with a half-life of a few seconds in the blood. Standard pharmaceuticals such as nitroglycerine and amyl nitrite are precursors to nitric oxide. Low levels of nitric oxide production are typically due to ischemic damage in the liver.

As a consequence of its importance in neuroscience, physiology, and immunology, nitric oxide was proclaimed "Molecule of the Year" in 1992.[2] Research into its function led to the 1998 Nobel Prize for elucidating the role of nitric oxide as a cardiovascular signalling molecule.

  1. ^ Culotta E, Koshland DE (December 1992). "NO news is good news". Science. 258 (5090): 1862–1865. Bibcode:1992Sci...258.1862C. doi:10.1126/science.1361684. PMID 1361684.

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Biological functions of nitric oxide

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Biological functions of nitric oxide are roles that nitric oxide plays within biology. Nitric oxide (nitrogen monoxide) is a molecule and chemical compound...

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Nitric oxide

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Nitric oxide (nitrogen oxide or nitrogen monoxide) is a colorless gas with the formula NO. It is one of the principal oxides of nitrogen. Nitric oxide...

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Nitric oxide synthase

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Nitric oxide synthases (EC 1.14.13.39) (NOSs) are a family of enzymes catalyzing the production of nitric oxide (NO) from L-arginine. NO is an important...

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Nitrosylation

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The biological functions of nitric oxide include S-nitrosylation, the conjugation of NO to cysteine thiols in proteins, which is an important part of cell...

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sexuality portal Medicine portal Biological functions of nitric oxide Camel toe Nocturnal clitoral tumescence Sexual function Kirshblum, Steven; Lin, Vernon...

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Nitrovasodilator

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(widening of blood vessels) by donation of nitric oxide (NO), and is mostly used for the treatment and prevention of angina pectoris. This group of drugs...

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Gaseous signaling molecules

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for instance, as a powerful vasodilator in humans (see Biological functions of nitric oxide). Mammalian cells have a specialized gasoreceptor soluble...

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Exhaled nitric oxide

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exhaled nitric oxide (eNO) can be measured in a breath test for asthma and other respiratory conditions characterized by airway inflammation. Nitric oxide (NO)...

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Redox

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reduction–oxidation or oxidation–reduction: 150 ) is a type of chemical reaction in which the oxidation states of a reactant change. Oxidation is the loss of electrons...

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Saliva testing

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antibodies, and a variety of other substances, including natural metabolites, including saliva nitrite, a biomarker for nitric oxide status (see below for...

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Nitrogen dioxide

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Nitrogen dioxide typically arises via the oxidation of nitric oxide by oxygen in air (e.g. as result of corona discharge): 2 NO + O2 → 2 NO2 NO2 is...

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Endothelial NOS

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enzyme is one of three isoforms that synthesize nitric oxide (NO), a small gaseous and lipophilic molecule that participates in several biological processes...

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Nitric oxide dioxygenase

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Nitric oxide dioxygenase (EC 1.14.12.17) is an enzyme that catalyzes the conversion of nitric oxide (NO) to nitrate (NO− 3) . The net reaction for the...

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Reactive nitrogen species

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family of antimicrobial molecules derived from nitric oxide (•NO) and superoxide (O2•−) produced via the enzymatic activity of inducible nitric oxide synthase...

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Arginine

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guanidine group in arginine is the precursor for the biosynthesis of nitric oxide. Like all amino acids, it is a white, water-soluble solid. The one-letter...

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NOS1

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a family of synthases that catalyze the production of nitric oxide (NO) from L-arginine. NO is a chemical messenger with diverse functions throughout...

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Oxidative stress

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Oxidative stress reflects an imbalance between the systemic manifestation of reactive oxygen species and a biological system's ability to readily detoxify...

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Tetrahydrobiopterin

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a cofactor for the production of nitric oxide (NO) by the nitric oxide synthases. Chemically, its structure is that of a (dihydropteridine reductase)...

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Neurotoxin

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tetrodotoxin. Some substances such as nitric oxide and glutamate are in fact essential for proper function of the body and only exert neurotoxic effects...

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Alveolar macrophage

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secrete nitric oxide, prostaglandins, interleukin-4 and -10(IL-4, IL-10), and transforming growth factor-β (TGF-β). Nitric oxide (NO) is a major source of immunomodulation...

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Hydroxylamine

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sulfate ([NH3OH]+[HSO4]−), by the hydrogenation of nitric oxide over platinum catalysts in the presence of sulfuric acid. 2 NO + 3 H2 + 2 H2SO4 → 2 [NH3OH]+[HSO4]−...

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Heme

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number of other biologically important hemoproteins such as myoglobin, cytochromes, catalases, heme peroxidase, and endothelial nitric oxide synthase...

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Gasotransmitter

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on a need to meet distinct characterization criteria. Currently, only nitric oxide, carbon monoxide, and hydrogen sulfide are accepted as gasotransmitters...

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Biological functions of hydrogen sulfide

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some cells of the mammalian body and has a number of biological signaling functions. Only two other such gases are currently known: nitric oxide (NO) and...

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Agmatine

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molecular targets, notably: neurotransmitter systems, ion channels, nitric oxide (NO) synthesis and polyamine metabolism and this provides bases for further...

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Nitrogen

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into nitric oxide. Many notable nitrogen-containing drugs, such as the natural caffeine and morphine or the synthetic amphetamines, act on receptors of animal...

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Spermidine

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biological processes, such as Ca2+ influx by glutamatergic N-methyl-D-aspartate receptor (NMDA receptor), which has been associated with nitric oxide...

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