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Oxygen Isotopes
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D010103 |
[Stable oxygen atoms that have the same atomic number as the element oxygen, but differ in atomic weight. O-17 and 18 are stable oxygen isotopes.
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Oxygen Radical Absorbance Capacity
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D000072257 |
[A measure of the ability of a substance, such as a food, to quench oxygen free radicals in vitro.
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Oxygen Radioisotopes
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D010104 |
[Unstable isotopes of oxygen that decay or disintegrate emitting radiation. O atoms with atomic weights 13, 14, 15, 19, and 20 are radioactive oxygen isotopes.
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Oxygenases
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D010105 |
[Oxidases that specifically introduce DIOXYGEN-derived oxygen atoms into a variety of organic molecules.
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Oxygenators
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D010106 |
[Devices which mechanically oxygenate venous blood extracorporeally. They are used in combination with one or more pumps for maintaining circulation during open heart surgery and for assisting the circulation in patients seriously ill with some cardiac and pulmonary disorders. (UMDNS, 1999)
] |
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Oxygenators, Membrane
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D010107 |
[Devices in which blood and oxygen are separated by a semipermeable membrane, generally of Teflon or polypropylene, across which gas exchange occurs. The membrane may be arranged as a series of parallel plates or as a number of hollow fibers; in the latter arrangement, the blood may flow inside the fibers, which are surrounded by gas, or the blood may flow outside the fibers and the gas inside the fibers. (Dorland, 28th ed)
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Oxyhemoglobins
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D010108 |
[A compound formed by the combination of hemoglobin and oxygen. It is a complex in which the oxygen is bound directly to the iron without causing a change from the ferrous to the ferric state.
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Oxylipins
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D054883 |
[Eighteen-carbon cyclopentyl polyunsaturated fatty acids derived from ALPHA-LINOLENIC ACID via an oxidative pathway analogous to the EICOSANOIDS in animals. Biosynthesis is inhibited by SALICYLATES. A key member, jasmonic acid of PLANTS, plays a similar role to ARACHIDONIC ACID in animals.
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Oxymetazoline
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D010109 |
[A direct acting sympathomimetic used as a vasoconstrictor to relieve nasal congestion. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1251)
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Oxymetholone
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D010110 |
[A synthetic hormone with anabolic and androgenic properties. It is used mainly in the treatment of anemias. According to the Fourth Annual Report on Carcinogens (NTP 85-002), this compound may reasonably be anticipated to be a carcinogen. (From Merck Index, 11th ed)
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Oxymonadida
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D056899 |
[An order of EUKARYOTES found in the gut of termites and other insects that live on LIGNIN. MITOCHONDRIA and GOLGI APPARATUS are absent from oxymonads.
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Oxymorphone
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D010111 |
[An opioid analgesic with actions and uses similar to those of MORPHINE, apart from an absence of cough suppressant activity. It is used in the treatment of moderate to severe pain, including pain in obstetrics. It may also be used as an adjunct to anesthesia. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1092)
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Oxyntomodulin
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D053772 |
[A 37-amino acid peptide derived from the C-terminal of GLICENTIN. It is mainly produced by the INTESTINAL L CELLS. Oxyntomodulin can reduce digestive secretions, delay gastric emptying, and reduced food intake.
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Oxyphenbutazone
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D010113 |
[A non-steroidal anti-inflammatory drug. Oxyphenbutazone eyedrops have been used abroad in the management of postoperative ocular inflammation, superficial eye injuries, and episcleritis. (From AMA, Drug Evaluations Annual, 1994, p2000) It had been used by mouth in rheumatic disorders such as ankylosing spondylitis, osteoarthritis, and rheumatoid arthritis but such use is no longer considered justified owing to the risk of severe hematological adverse effects. (From Martindale, The Extra Pharmacopoeia, 30th ed, p27)
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Oxyphenisatin Acetate
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D010114 |
[A laxative that undergoes enterohepatic circulation. It may cause jaundice.
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Oxyphenonium
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D010115 |
[A quaternary ammonium anticholinergic agent with peripheral side effects similar to those of ATROPINE. It is used as an adjunct in the treatment of gastric and duodenal ulcer, and to relieve visceral spasms. The drug has also been used in the form of eye drops for mydriatic effect.
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Oxyphil Cells
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D024862 |
[Large cells with small irregular nuclei and dense acidophilic granules due to the presence of abundant MITOCHONDRIA. Oxyphil cells, also known as oncocytes, are found in oncocytomas of the kidney, salivary glands, and endocrine glands. In the thyroid gland, oxyphil cells are known as Hurthle cells and Askenazy cells.
, Oxyphil cells in the thyroid gland are known as Hurthle cells and Askenazy cells.
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Oxypurinol
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D010117 |
[A xanthine oxidase inhibitor.
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Oxyquinoline
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D015125 |
[An antiseptic with mild fungistatic, bacteriostatic, anthelmintic, and amebicidal action. It is also used as a reagent and metal chelator, as a carrier for radio-indium for diagnostic purposes, and its halogenated derivatives are used in addition as topical anti-infective agents and oral antiamebics.
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Oxysterols
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D000072376 |
[Oxygenated derivatives of cholesterol or its sterol precursors. They are generated from sterol metabolism and the interaction of cholesterol with REACTIVE OXYGEN SPECIES.
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