X
Total 422235 Results
| Label | Description | ILX | Version | Created CID | Modified Time | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pyridoxine | The 4-methanol form of vitamin B 6 which is converted to pyridoxal phosphate which is a coenzyme for synthesis of amino acids, neurotransmitters (serotonin, norepinephrine), sphingolipids, aminolevulinic acid. Although pyridoxine and Vitamin B 6 are still frequently used as synonyms, especially by medical researchers, this practice is erroneous and sometimes misleading (EE Snell; Ann NY Acad Sci, vol 585 pg 1, 1990). (PubChem) Pharmacology: Vitamin B6 (pyridoxine) is a water-soluble vitamin used in the prophylaxis and treatment of vitamin B6 deficiency and peripheral neuropathy in those receiving isoniazid (isonicotinic acid hydrazide, INH). Vitamin B6 has been found to lower systolic and diastolic blood pressure in a small group of subjects with essential hypertension. Hypertension is another risk factor for atherosclerosis and coronary heart disease. Another study showed pyridoxine hydrochloride to inhibit ADP- or epinephrine-induced platelet aggregation and to lower total cholesterol levels and increase HDL-cholesterol levels, again in a small group of subjects. Vitamin B6, in the form of pyridoxal 5'-phosphate, was found to protect vascular endothelial cells in culture from injury by activated platelets. Endothelial injury and dysfunction are critical initiating events in the pathogenesis of atherosclerosis. Human studies have demonstrated that vitamin B6 deficiency affects cellular and humoral responses of the immune system. Vitamin B6 deficiency results in altered lymphocyte differentiation and maturation, reduced delayed-type hypersensitivity (DTH) responses, impaired antibody production, decreased lymphocyte proliferation and decreased interleukin (IL)-2 production, among other immunologic activities. Mechanism of action: Vitamin B6 is the collective term for a group of three related compounds, pyridoxine (PN), pyridoxal (PL) and pyridoxamine (PM), and their phosphorylated derivatives, pyridoxine 5'-phosphate (PNP), pyridoxal 5'-phosphate (PLP) and pyridoxamine 5'-phosphate (PMP). Although all six of these compounds should technically be referred to as vitamin B6, the term vitamin B6 is commonly used interchangeably with just one of them, pyridoxine. Vitamin B6, principally in the form of the coenzyme pyridoxal 5'-phosphate, is involved in a wide range of biochemical reactions, including the metabolism of amino acids and glycogen, the synthesis of nucleic acids, hemogloblin, sphingomyelin and other sphingolipids, and the synthesis of the neurotransmitters serotonin, dopamine, norepinephrine and gamma-aminobutyric acid (GABA). Drug type: Approved. Nutraceutical. Small Molecule. Drug category: Anti-inflammatory Agents. Essential Vitamin. Vitamin B Complex. Vitamins (Vitamin B Complex) | ILX:0109563 | 4 | FDI Lab - SciCrunch.org | 08/24/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | troy sincomb |
| Pyrimethamine | One of the folic acid antagonists that is used as an antimalarial or with a sulfonamide to treat toxoplasmosis. (PubChem) Pharmacology: Pyrimethamine is an antiparasitic compound commonly used as an adjunct in the treatment of uncomplicated, chloroquine resistant, P. falciparum malaria. Pyrimethamine is a folic acid antagonist and the rationale for its therapeutic action is based on the differential requirement between host and parasite for nucleic acid precursors involved in growth. This activity is highly selective against plasmodia and Toxoplasma gondii. Pyrimethamine possesses blood schizonticidal and some tissue schizonticidal activity against malaria parasites of humans. However, the 4-amino-quinoline compounds are more effective against the erythrocytic schizonts. It does not destroy gametocytes, but arrests sporogony in the mosquito. The action of pyrimethamine against Toxoplasma gondii is greatly enhanced when used in conjunction with sulfonamides. Mechanism of action: Pyrimethamine inhibits the dihydrofolate reductase of plasmodia and thereby blocks the biosynthesis of purines and pyrimidines, which are essential for DNA synthesis and cell multiplication. This leads to failure of nuclear division at the time of schizont formation in erythrocytes and liver. Drug type: Approved. Small Molecule. Drug category: Antimalarials. Antiprotozoal Agents. Antiprotozoals. Folic Acid Antagonists | ILX:0109564 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Pyrimidine Nucleoside | ILX:0109565 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex | |
| Pyrimidine Nucleotide | ILX:0109566 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex | |
| Pyruvic acid | An intermediate compound in the metabolism of carbohydrates, proteins, and fats. In thiamine deficiency, its oxidation is retarded and it accumulates in the tissues, especially in nervous structures. (From Stedman, 26th ed) Pharmacology: Pyruvic acid or pyruvate is a key intermediate in the glycolytic and pyruvate dehydrogenase pathways, which are involved in biological energy production. Pyruvate is widely found in living organisms. It is not an essential nutrient since it can be synthesized in the cells of the body. Certain fruits and vegetables are rich in pyruvate. For example, an average-size red apple contains approximately 450 milligrams. Dark beer and red wine are also rich sources of pyruvate. Recent research suggests that pyruvate in high concentrations may have a role in cardiovascular therapy, as an inotropic agent. Supplements of this dietary substance may also have bariatric and ergogenic applications. Mechanism of action: Pyruvate serves as a biological fuel by being converted to acetyl coenzyme A, which enters the tricarboxylic acid or Krebs cycle where it is metabolized to produce ATP aerobically. Energy can also be obtained anaerobically from pyruvate via its conversion to lactate. Pyruvate injections or perfusions increase contractile function of hearts when metabolizing glucose or fatty acids. This inotropic effect is striking in hearts stunned by ischemia/reperfusion. The inotropic effect of pyruvate requires intracoronary infusion. Among possible mechanisms for this effect are increased generation of ATP and an increase in ATP phosphorylation potential. Another is activation of pyruvate dehydrogenase, promoting its own oxidation by inhibiting pyruvate dehydrogenase kinase. Pyruvate dehydrogenase is inactivated in ischemia myocardium. Yet another is reduction of cytosolic inorganic phosphate concentration. Pyruvate, as an antioxidant, is known to scavenge such reactive oxygen species as hydrogen peroxide and lipid peroxides. Indirectly, supraphysiological levels of pyruvate may increase cellular reduced glutathione. Drug type: Approved. Nutraceutical. Small Molecule. Drug category: Dietary supplement. Micronutrient | ILX:0109567 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Q-ball imaging protocol | ILX:0109568 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex | |
| QRFP receptor | ILX:0109569 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex | |
| Quadrangular | A shape quality inhering in a bearer by virtue of having four angles and four sides. | ILX:0109570 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Quadrature Receive Coil | Indicates whether the receive coil is quadrature. | ILX:0109571 | 5 | FDI Lab - SciCrunch.org | 08/28/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | troy sincomb |
| Qualitative | ILX:0109572 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex | |
| Quality | A quality is an attribute or a property. | ILX:0109573 | 3 | FDI Lab - SciCrunch.org | 06/12/2021 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Quality (PATO 0000001) | A dependent entity that inheres in a bearer by virtue of how the bearer is related to other entities. | ILX:0109574 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Quality Control Image | Indicates whether or not this image is a quality control or phantom image. | ILX:0109575 | 4 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Quality of a gas | A physical quality inhering in a bearer by virtue of the bearer's exhibiting the physical characteristics of an entity consisting of particles that have neither a defined volume nor defined shape. | ILX:0109576 | 4 | FDI Lab - SciCrunch.org | 06/12/2021 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Quality of a liquid | A physical quality inhering in an entity exhibiting the physical characteristics of a liquid. | ILX:0109577 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Quality of a solid | A physical quality inhering in an entity exhibiting the physical characteristics of a solid. | ILX:0109578 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Quantitative value | ILX:0109579 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex | |
| Quetiapine | Quetiapine is indicated for the treatment of schizophrenia as well as for the treatment of acute manic episodes associated with bipolar I disorder. The antipsychotic effect of quetiapine is thought by some to be mediated through antagonist activity at dopamine and serotonin receptors. Specifically the D1 and D2 dopamine, the alpha 1 adrenoreceptor and alpha 2 adrenoreceptor, and 5-HT1A and 5-HT2 serotonin receptor subtypes are antagonized. Quetiapine also has an antagonistic effect on the histamine H1 receptor. Pharmacology: Quetiapine is a psychotropic agent belonging to the chemical class of benzisoxazole derivatives and is indicated for the treatment of schizophrenia. Quetiapine is a selective monoaminergic antagonist with high affinity for the serotonin Type 2 (5HT2), and dopamine type 2 (D2) receptors. Quetiapine is an antagonist at serotonin 5-HT1A and 5HT2, dopamine D1 and D2, histamine H1, and adrenergic alpha 1 and alpha 2 receptors. Quetiapine has no significant affinity for cholinergic muscarinic or benzodiazepine receptors. Drowsiness and orthostatic hypotension associated with use of quetiapine may be explained by its antagonism of histamine H1 and adrenergic alpha 1 receptors, respectively. Quetiapine's antagonism of adrenergic a1 receptors may explain the orthostatic hypotension observed with this drug. Mechanism of action: The mechanism of action of quetiapine, as with other drugs used to treat schizophrenia, is unknown. However, it is thought that the drug's therapeutic activity in schizophrenia is mediated through a combination of dopamine type 2 (D2) and serotonin type 2 (5HT2) receptor antagonism. Although quetiapine is known to bind other receptors with similar affinity, only the dopamine D2 and serotonin 5HT2 receptor binding is responsible for quetiapine's therapeutic activity in schizophrenia. Drug type: Approved. Small Molecule. Drug category: Antipsychotic Agents. Antipsychotics | ILX:0109580 | 4 | FDI Lab - SciCrunch.org | 08/24/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | troy sincomb |
| Queue Status | Status of the queue (retired). | ILX:0109581 | 4 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
| Quick mood scale | The Quick Mood Scale is a 12-item category scale which gives information on six factors of importance in the assessment of drug effects on the central nervous system (drowsiness, anxiety, depression, aggression, confusion and lack of coordination). Responders are instructed to give an indication of his or her mood at this moment for each of the 12 items on a 5 point likert scale (not at all, a little, moderately, very, extremely). | ILX:0109582 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/09/2016 | 0 | NeuroLex | NeuroLex |
About
The SciCrunch Infrastructure was developed as a cooperative data platform to be used by diverse communities in making data more FAIR.
Contact Us
FAIR Data Informatics Lab
University of California, San Diego
9500 Gilman Drive, Mail Code 0608
La Jolla, CA 92093-0608
United States
info 
scicrunch.org
scicrunch.org
X