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ovum – transport

Transport of the OVUM or fertilized ovum (ZYGOTE) from the mammalian oviduct (FALLOPIAN TUBES) to the site of EMBRYO IMPLANTATION in the UTERUS.
MSH

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vlastnictví

The legal relation between an entity (individual, group, corporation, or-profit, secular, government) and an object. The object may be corporeal, such as equipment, or completely a creature of law, such as a patent; it may be movable, such as an animal, or immovable, such as a building.
MSH

The legal relation in which a person or group entity has a financial interest in, dominion of, or control over an object or property.
NCI

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oxacilin

An antibiotic similar to FLUCLOXACILLIN used in resistant staphylococci infections.
MSH

A semisynthetic penicillinase-resistant and acid-stable penicillin with an antimicrobial activity. Oxacillin binds to penicillin-binding proteins in the bacterial cell wall, thereby blocking the synthesis of peptidoglycan, a critical component of the bacterial cell wall. This leads to inhibition of cell growth and causes cell lysis.
NCI

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oxaláty

Salts and esters of OXALIC ACID.
MSH

strong dicarboxylic acid or its salts or esters occurring in many plants; produced in the body by metabolism of glyoxylic acid or ascorbic acid; not metabolized but excreted in the urine.
CSP

A salt or ester of oxalic acid.
NCI

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oxalacetáty

Salts and esters of oxaloacetic acid.
MSH

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kyselina oxamová

Amino-substituted glyoxylic acid derivative.
MSH

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oxamnichin

An anthelmintic with schistosomicidal activity against Schistosoma mansoni, but not against other Schistosoma spp. Oxamniquine causes worms to shift from the mesenteric veins to the liver where the male worms are retained; the female worms return to the mesentery, but can no longer release eggs. (From Martidale, The Extra Pharmacopoeia, 31st ed, p121)
MSH

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oxandrolon

A synthetic hormone with anabolic and androgenic properties.
MSH

synthetic hormone with androgenic and anabolic properties.
CSP

A drug used to help patients gain weight after injury, chronic infection, or severe illness. It belongs to the family of drugs called anabolic steroids.
NCI

A synthetic, anabolic steroid hormone analog of testosterone. Similar to testosterone, oxandrolone binds to and activates specific nuclear receptors. This agent may be used for testosterone replacement therapy in hypogonadal men, in HIV-wasting syndrome, and in other conditions in order to increase nitrogen retention and fat-free muscle mass. Check for “http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?id=331866&idtype=1″ active clinical trials or “http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?id=331866&idtype=1&closed=1″ closed clinical trials using this agent. (“http://nciterms.nci.nih.gov:80/NCIBrowser/ConceptReport.jsp?dictionary=NCI_Thesaurus&code=C29306″ NCI Thesaurus)
PDQ

A synthetic, anabolic steroid hormone analog of testosterone. Similar to testosterone, oxandrolone binds to and activates specific nuclear receptors. This agent may be used for testosterone replacement therapy in hypogonadal men, in HIV-wasting syndrome, and in other conditions in order to increase nitrogen retention and fat-free muscle mass. (NCI04)
NCI

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oxazepam

A benzodiazepine used in the treatment of anxiety, alcohol withdrawal, and insomnia.
MSH

benzodiazepine used in the treatment of anxiety, alcohol withdrawal, and insomnia.
CSP

A synthetic benzodiazepine derivative with anxiolytic and sedative hypnotic properties. Although the mechanism of action has not been fully elucidated, oxazepam appears to enhance gamma-aminobutyric acid (GABA) receptor affinity for GABA, thereby prolonging synaptic actions of GABA.
NCI

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oxaziny

Six-membered heterocycles containing an oxygen and a nitrogen.
MSH

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oxazociny

One ring heterocyclic compounds defined by C6H7NO. Permitted are any degree of hydrogenation, any substituents and any ortho-fused or ortho-peri-fused ring systems.
MSH

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oxazoly

Five-membered heterocyclic ring structures containing an oxygen in the 1-position and a nitrogen in the 3-position, in distinction from ISOXAZOLES where they are at the 1,2 positions.
MSH

five-membered heterocyclic ring structures containing an oxygen in the 1-position and a nitrogen in the 3-position.
CSP

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oxazolon

Immunologic adjuvant and sensitizing agent.
MSH

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oxepiny

Compounds based on a 7-membered heterocyclic ring including an oxygen. They can be considered a medium ring ether. A natural source is the MONTANOA plant genus. Some dibenzo-dioxepins, called depsidones, are found in GARCINIA plants.
MSH

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oxidancia fotochemická

Compounds that accept electrons in an oxidation-reduction reaction. The reaction is induced by or accelerated by exposure to electromagnetic radiation in the spectrum of visible or ultraviolet light.
MSH

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Oxidation

loss of electrons from a compound.
CSP

A chemical reaction that takes place when a substance comes into contact with oxygen or another oxidizing substance. Examples of oxidation are rust and the brown color on a cut apple.
NCI

The process of oxidizing; the addition of oxygen to a compound accompanied by a loss of electrons.
NCI

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oxidace-redukce

A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471).
MSH

A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons. [GOC:dhl, GOC:ecd, GOC:jh2, GOC:jid, GOC:mlg, GOC:rph]
GO

chemical reaction in which electrons are transferred from one reactant to another.
CSP

All electron-transfer reactions are considered oxidation/reduction reactions. The substance gaining electrons (“oxidizing agent” or “oxidant”) is oxidizing the substance that is losing electrons (“reducing agent” or “reductant”). In the process, the “oxidizing agent” is itself reduced by the “reducing agent.” (from Electrochemistry Dictionary; http://electrochem.cwru.edu/ed/dict.htm)
NCI

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oxidační fosforylace

electron transfer through the cytochrome system liberating free energy which is transformed into high-energy phosphate bonds.
CSP

The phosphorylation of ADP to ATP that accompanies the oxidation of a metabolite through the operation of the respiratory chain. Oxidation of compounds establishes a proton gradient across the membrane, providing the energy for ATP synthesis. [ISBN:0198506732 “Oxford Dictionary of Biochemistry and Molecular Biology”, ISBN:0471331309 “Biochemical Pathways”]
GO

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oxidy

Binary compounds of oxygen containing the anion O(2-). The anion combines with metals to form alkaline oxides and non-metals to form acidic oxides.
MSH

any compound of oxygen with an element or radical.
CSP

a chemical compound containing an oxygen atom and other elements
CHV

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oxidoreduktasy

The class of all enzymes catalyzing oxidoreduction reactions. The substrate that is oxidized is regarded as a hydrogen donor. The systematic name is based on donor:acceptor oxidoreductase. The recommended name will be dehydrogenase, wherever this is possible; as an alternative, reductase can be used. Oxidase is only used in cases where O2 is the acceptor. (Enzyme Nomenclature, 1992, p9)
MSH

catalyses oxidation/reduction reactions.
CSP

a kind of enzyme
CHV

The class of all enzymes catalyzing oxidoreduction reactions (EC class 1). The substrate that is oxidized is regarded as a hydrogen donor. The systematic name is based on donor: acceptor oxidoreductase. The recommended name will be dehydrogenase, wherever this is possible; as an alternative, reductase can be used. Oxidase is only used in cases where O2 is the acceptor. (Enzyme Nomenclature, 1992, p9)
NCI

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oxidoreduktasy O-demethylující

Drug metabolizing enzymes which oxidize methyl ethers. Usually found in liver microsomes.
MSH

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oximy

Compounds that contain the radical R2C=N.OH derived from condensation of ALDEHYDES or KETONES with HYDROXYLAMINE. Members of this group are CHOLINESTERASE REACTIVATORS.
MSH

compounds containing the group C=NOH.
CSP

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kyselina oxolinová

Synthetic antimicrobial related to NALIDIXIC ACID and used in URINARY TRACT INFECTIONS.
MSH

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kyselina oxonová

Antagonist of urate oxidase.
MSH

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oxotremorin

A non-hydrolyzed muscarinic agonist used as a research tool.
MSH

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oxprenolol

A beta-adrenergic antagonist used in the treatment of hypertension, angina pectoris, arrhythmias, and anxiety.
MSH

A lipophilic, nonselective beta-adrenergic receptor antagonist with anti-arrhythmic, anti-anginal and antihypertensive activities. Oxprenolol competitively binds to and blocks beta-1 adrenergic receptors in the heart, thereby decreasing cardiac contractility and rate. This leads to a reduction in cardiac output and lowers blood pressure. In addition, oxprenolol prevents the release of renin, a hormone secreted by the kidneys that causes constriction of blood vessels.
NCI

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Oxycefalie

Premature closing of the lambdoid and coronal sutures.
MSH

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oxyklozanid

Anthelmintic used in grazing animals for fasciola and cestode infestations.
MSH

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oxykodon

A semisynthetic derivative of CODEINE.
MSH

A semi-synthetic, morphine-like opioid alkaloid with analgesic activity. Oxycodone exerts its analgesic activity by binding to the mu-receptors in the central nervous system (CNS), thereby mimicking the effects of endogenous opioids. Binding of the opiate receptor stimulates the exchange of GTP for GDP on the G-protein complex and inhibits adenylate cyclase, thereby preventing cAMP production. Subsequently, the release of nociceptive neurotransmitters, such as substance P, gamma-aminobutyric acid (GABA), dopamine, acetylcholine, and noradrenaline, is inhibited. Oxycodone also inhibits the release of vasopressin, somatostatin, insulin, and glucagon. In addition, oxycodone closes N-type voltage-gated calcium channels and opens G-protein-coupled inwardly rectifying potassium channels resulting in hyperpolarization and reduction of neuronal excitability.
NCI

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oxyfedrin

A drug used in the treatment of angina pectoris, heart failure, conduction defects, and myocardial infarction. It is a partial agonist at beta adrenergic receptors and acts as a coronary vasodilator and cardiotonic agent.
MSH

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