Search results
Results from the WOW.Com Content Network
Thus, the presence of anti-HMG CoA reductase antibodies in someone who uses a statin and has myopathy strongly supports the diagnosis. [3] CK levels increase to 10-100 times above normal (2000–20,000 IU/L) in more than 90% of cases.
Because statins are similar in structure to HMG-CoA on a molecular level, they will fit into the enzyme's active site and compete with the native substrate (HMG-CoA). This competition reduces the rate by which HMG-CoA reductase is able to produce mevalonate, the next molecule in the cascade that eventually produces cholesterol.
Statins, also known as beta-hydroxy-beta-methylglutaryl-Coenzyme A (HMG-CoA) reductase inhibitors, are the first-line drugs for hypercholesterolaemia. [19] Examples of this drug class are atorvastatin, rosuvastatin, fluvastatin, simvastatin, pravastatin and lovastatin.
HMG-CoA reductase (3-hydroxy-3-methyl-glutaryl-coenzyme A reductase, official symbol HMGCR) is the rate-controlling enzyme (NADH-dependent, EC 1.1.1.88; NADPH-dependent, EC 1.1.1.34) of the mevalonate pathway, the metabolic pathway that produces cholesterol and other isoprenoids.
ATC code C10 Lipid modifying agents is a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System, a system of alphanumeric codes developed by the World Health Organization (WHO) for the classification of drugs and other medical products.
As a reversible competitive inhibitor, pravastatin sterically hinders the action of HMG-CoA reductase by occupying the active site of the enzyme. Taking place primarily in the liver, this enzyme is responsible for the conversion of HMG-CoA to mevalonate in the rate-limiting step of the biosynthetic pathway for cholesterol. Pravastatin also ...
Statins (HMG-CoA reductase inhibitors) are particularly well suited for lowering LDL, the cholesterol with the strongest links to vascular diseases. In studies using standard doses, statins have been found to lower LDL-C by 18% to 55%, depending on the specific statin being used.
This part will bind to the HMG-CoA reductase making it unavailable for HMG-CoA. [6] Cerivastatin is a pure synthetic drug, produced to create a more potent inhibitor of HMG-CoA reductase. Cerivastatin was the most potent inhibitor with an inhibitory constant of 0.5 μg/L, which made it already effective at a low dose.