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Total 959151 Results
| Label | Description | ILX | Version | Created CID | Modified Time | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Quiet | A sound amplitude which is low. | ILX:0109583 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Quinacrine | An acridine derivative formerly widely used as an antimalarial but superseded by chloroquine in recent years. It has also been used as an anthelmintic and in the treatment of giardiasis and malignant effusions. It is used in cell biological experiments as an inhibitor of phospholipase A2. (PubChem) Pharmacology: Quinacrine has been used as an antimalarial drug and as an antibiotic. It is used to treat giardiasis, a protozoal infection of the intestinal tract, and certain types of lupus erythematosus, an inflammatory disease that affects the joints, tendons, and other connective tissues and organs. Quinacrine may be injected into the space surrounding the lungs to prevent reoccurrence of pneumothorax. The exact way in which quinacrine works is unknown. It appears to interfere with the parasite's metabolism. Mechanism of action: The exact mechanism of antiparasitic action is unknown; however, quinacrine binds to deoxyribonucleic acid (DNA) in vitro by intercalation between adjacent base pairs, inhibiting transcription and translation to ribonucleic acid (RNA). Quinacrine does not appear to localize to the nucleus of Giaridia trophozoites, suggesting that DNA binding may not be the primary mechanism of its antimicrobial action. Fluorescence studies using Giardia suggest that the outer membranes may be involved. Quinacrine inhibits succinate oxidation and interferes with electron transport. In addition, by binding to nucleoproteins, quinacrine suppress the lupus erythematous cell factor and acts as a strong inhibitor of cholinesterase. Drug type: Approved. Small Molecule. Drug category: Anticestodal Agents. Antihelmintics. Antimalarials. Antinematodal Agents. Antineoplastic Agents. Antiprotozoals. Enzyme Inhibitors | ILX:0109584 | 4 | FDI Lab - SciCrunch.org | 08/24/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | troy sincomb |
| Quinapril | Quinapril is used in the treatment of hypertension and congestive heart failure. Quinapril is actually a prodrug. It is converted to its active metabolite, quinaprilat, in the liver. Quinapril inhibits angiotensin converting enzyme, an enzyme which catalyses the formation of angiotensin II from its precursor, angiotensin I. Angiotensin II is a powerful vasoconstrictor and increases blood pressure through a variety of mechanisms. Pharmacology: Quinapril, an angiotensin-converting enzyme (ACE) inhibitor, is used to treat hypertension and heart failure. Like ramipril, quinapril is a prodrug that, upon deesterification, is converted to the active metabolite quinaprilat. The effect of quinapril in hypertension and in congestive heart failure (CHF) appears to result primarily from the inhibition of circulating and tissue ACE activity, thereby reducing angiotensin II formation. Mechanism of action: Quinaprilat competes with angiotensin I for binding at the angiotensin-converting enzyme, blocking the conversion of angiotensin I to angiotensin II. As angiotensin II is a vasoconstrictor and a negative-feedback mediator for renin activity, lower concentrations result in a decrease in blood pressure and stimulation of baroreceptor reflex mechanisms. Quinaprilat may also act on kininase II, an enzyme identical to ACE that degrades the vasodilator bradykinin. Drug type: Approved. Investigational. Small Molecule. Drug category: Angiotensin-converting Enzyme Inhibitors. Antihypertensive Agents | ILX:0109585 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Quinidine | An optical isomer of quinine, extracted from the bark of the Cinchona tree and similar plant species. This alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. It prolongs cellular action potential, and decreases automaticity. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission. (PubChem) Pharmacology: Quinidine, a hydantoin anticonvulsant, is used alone or with phenobarbital or other anticonvulsants to manage tonic-clonic seizures, psychomotor seizures, neuropathic pain syndromes including diabetic neuropathy, digitalis-induced cardiac arrhythmias, and cardiac arrhythmias associated with QT-interval prolongation. Mechanism of action: Quinidine acts on sodium channels on the neuronal cell membrane, limiting the spread of seizure activity and reducing seizure propagation. The antiarrhythmic actions are mediated through effects on sodium channels in Purkinje fibers. Drug type: Approved. Small Molecule. Drug category: Adrenergic alpha-Antagonists. Anti-Arrhythmia Agents. Antiarrhythmic Agents. Antimalarials. Enzyme Inhibitors. Muscarinic Antagonists | ILX:0109586 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Quinine | An alkaloid derived from the bark of the cinchona tree. It is used as an antimalarial drug, and is the active ingredient in extracts of the cinchona that have been used for that purpose since before 1633. Quinine is also a mild antipyretic and analgesic and has been used in common cold preparations for that purpose. It was used commonly and as a bitter and flavoring agent, and is still useful for the treatment of babesiosis. Quinine is also useful in some muscular disorders, especially nocturnal leg cramps and myotonia congenita, because of its direct effects on muscle membrane and sodium channels. The mechanisms of its antimalarial effects are not well understood. (PubChem) Pharmacology: Quinine is used parenterally to treat life-threatening infections caused by chloroquine-resistant Plasmodium falciparum malaria. Quinine acts as a blood schizonticide although it also has gametocytocidal activity against P. vivax and P. malariae. Because it is a weak base, it is concentrated in the food vacuoles of P. falciparum. It is thought to act by inhibiting heme polymerase, thereby allowing accumulation of its cytotoxic substrate, heme. As a schizonticidal drug, it is less effective and more toxic than chloroquine. However, it has a special place in the management of severe falciparum malaria in areas with known resistance to chloroquine. Mechanism of action: The theorized mechanism of action for quinine and related anti-malarial drugs is that these drugs are toxic to the malaria parasite. Specifically, the drugs interfere with the parasite's ability to break down and digest hemoglobin. Consequently, the parasite starves and/or builds up toxic levels of partially degraded hemoglobin in itself. Drug type: Approved. Small Molecule. Drug category: Analgesics, Non-Narcotic. Antimalarials. Muscle Relaxants, Central | ILX:0109587 | 4 | FDI Lab - SciCrunch.org | 08/24/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | troy sincomb |
| R Wave Pointer | Marks the location(s) of the R Wave in the cardiac cycles by referencing frame numbers; frame numbers begin with 1. | ILX:0109588 | 4 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| R Wave Time Vector | The time offset(s) of the reported R Wave peaks, each relative to the time of the start of the acquisition of the first frame in msec. | ILX:0109589 | 6 | FDI Lab - SciCrunch.org | 08/28/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | troy sincomb |
| R-R Interval Vector | An array that contains the R-R interval number for each frame. | ILX:0109590 | 5 | FDI Lab - SciCrunch.org | 08/28/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | troy sincomb |
| R-weighted back projection | A reconstruction algorithm for electron tomography. In R-weighted backprojection, each horizontal line of input data is filtered to weight each spatial frequency proportional to its radius in Fourier space. This is radial weighting, and the filter is referred to as a radial filter. | ILX:0109591 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Rabbit | ILX:0109592 | 5 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex | |
| Rabeprazole | Rabeprazole is an antiulcer drug in the class of proton pump inhibitors. It is a prodrug - in the acid environment of the parietal cells it turns into active sulphenamide form. Rabeprazole inhibits the H+, K+ATPase of the coating gastric cells and dose-dependent oppresses basal and stimulated gastric acid secretion. Pharmacology: Rabeprazole prevents the production of acid in the stomach. It reduces symptoms and prevents injury to the esophagus or stomach in patients with gastroesophageal reflux disease (GERD) or ulcers. Rabeprazole is also useful in conditions that produce too much stomach acid such as Zollinger-Ellison syndrome. Rabeprazole may also be used with antibiotics to get rid of bacteria that are associated with some ulcers. Rabeprazole is a selective and irreversible proton pump inhibitor, suppresses gastric acid secretion by specific inhibition of the H+, K+ -ATPase enzyme system which is found at the secretory surface of parietal cells. It inhibits the final transport of hydrogen ions (via exchange with potassium ions) into the gastric lumen. Mechanism of action: Rabeprazole belongs to a class of antisecretory compounds (substituted benzimidazole proton-pump inhibitors) that do not exhibit anticholinergic or histamine H2-receptor antagonist properties, but suppress gastric acid secretion by inhibiting the gastric H+/K+ATPase (hydrogen-potassium adenosine triphosphatase) at the secretory surface of the gastric parietal cell. Because this enzyme is regarded as the acid (proton) pump within the parietal cell, rabeprazole has been characterized as a gastric proton-pump inhibitor. Rabeprazole blocks the final step of gastric acid secretion. In gastric parietal cells, rabeprazole is protonated, accumulates, and is transformed to an active sulfenamide. When studied in vitro, rabeprazole is chemically activated at pH 1.2 with a half-life of 78 seconds. Drug type: Approved. Investigational. Small Molecule. Drug category: Anti-Ulcer Agents. Enzyme Inhibitors | ILX:0109593 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Rabies virus | ILX:0109594 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex | |
| Rabies-virus-mediated tracing protocol | Transynaptic, retrograde tracing protocol that uses a modified rabies virus to trace neuronal circuitry from its source | ILX:0109595 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Race assessment | An assessment of an individual's race - an arbitrary classification of taxonomic group that is a division of a species; usually arise as a consequence of geographical isolation within a species and characterised by shared heredity, physical attributes and behavior, and in case of humans, by common history, nationality, or geographic distribution. (NCI) | ILX:0109596 | 4 | FDI Lab - SciCrunch.org | 08/24/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | troy sincomb |
| Rackmounts | rackmounts fix instruments in place in a "rack" where they can be plugged in to a conditioned power source and can interact with other pieces of equipment. | ILX:0109597 | 4 | FDI Lab - SciCrunch.org | 08/24/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | troy sincomb |
| Radial Anatomical Orientation | ILX:0109598 | 4 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex | |
| Radial Astrocyte | A type of astrocyte with a radial orientation commonly found in spinal cord and brain of lower vertebrates and sometimes in the optic nerve of mammals. One process abuts the pial surface and the other extends through significant thicknesses of neural tissue. (Reichenbach and Wolberg) | ILX:0109599 | 4 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Radial Glial Cell | A transient cell present only in the developing CNS. Functions as both a precursor cell and as a scaffold to support neuronal migration (Cell Ontology). | ILX:0109600 | 4 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Radial Position | Radial distance of the detector from the center of rotation, in mm. | ILX:0109601 | 6 | FDI Lab - SciCrunch.org | 08/28/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | troy sincomb |
| Radial symmetry | A symmetry quality inhering in a bearer by virtue of having equal proportion around a central point or axis. | ILX:0109602 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
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