U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

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Showing 9581 - 9590 of 10251 results

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

Norharman or beta-carboline (9H-pyrido[3,4-b]indole) is a neuroactive alkaloid first isolated from Peganum harmala L. It is implicated in a number of human diseases including Parkinson's disease, tremor, addiction and cancer. Norharman formed endogenously but external sources have been identified (among others fried meat and fish, meat extracts, alcoholic drinks, coffee brews, tobacco smoke). It inhibits monoamine oxidase and indoleamine 2,3-dioxygenase. In addition norharman binds with high affinity to imidazoline I2B receptors. Plasma norharman levels are elevated in chronic alcoholics and Parkinson's disease patients.
Status:
Other

Class (Stereo):
CHEMICAL (ABSOLUTE)


6'-Epipravastatin is a secondary isomeric metabolite of pravastatin. Pravastatin, one of the 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitors (statins) widely used in the management of hypercholesterolaemia, has unique pharmacokinetic characteristics among the members of this class. The major metabolites of Pravastatin found in plasma, urine and feces are 3′α-isopravastatin, 3′α,5′β-dihydroxy-pravastatin, desacyl-dehydropravastatin, 3′′-hydroxy-pravastatin and 6′-epipravastatin. The major pravastatin metabolites are generated by non-CYP-dependent processes: 3alpha-isopravastatin and metabolite 6-epipravastatin are either formed by acidic degradation of pravastatin in the stomach or by sulfation at the 6’beta-hydroxy group by sulfotransferases, followed by a nucleophilic attack of hydroxy anions at the 3alpha- or 6’alpha-position.
Status:
Other

Class (Stereo):
CHEMICAL (ABSOLUTE)

Status:
Other

Class (Stereo):
CHEMICAL (ABSOLUTE)

Status:
Other

Class (Stereo):
CHEMICAL (ABSOLUTE)

Showing 9581 - 9590 of 10251 results