Statins, also known as HMG-CoA reductase inhibitors, are a class of lipid-lowering medications that reduce illness and mortality in those who are at high risk of cardiovascular disease. When statins reduce hep… Consumption of grapefruit or grapefruit juice inhibits the metabolism of certain statins. Statins, by inhibiting the HMG CoA reductase pathway, inhibit downstream synthesis of isoprenoids, such as farnesyl pyrophosphate and geranylgeranyl pyrophosphate.  This lipid hypothesis prompted attempts to reduce cardiovascular disease burden by lowering cholesterol. High cholesterol levels have been associated with cardiovascular disease.  A 2011 review reached similar conclusions, and a 2012 review found benefits in both women and men. This is significant because most circulating cholesterol comes from internal manufacture rather than the diet. [medical citation needed] Mevastatin was never marketed, because of its adverse effects of tumors, muscle deterioration, and sometimes death in laboratory dogs. For the amino acid, see, Class of drugs used to lower cholesterol levels, Decreasing of specific protein prenylation. The sterol response elements then facilitate increased transcription of various other proteins, most notably, LDL receptor. A 2013 Cochrane review found a decrease in risk of death and other poor outcomes without any evidence of harm. They are indicated for the treatment By competitively inhibiting the rate-limiting enzyme, statins reduce LDL levels in the blood. Drug interactions are possible, but studies have not shown that these statins increase exposure to ciclosporin. Statins are HMG-CoA reductase inhibitors.  One way this is thought to occur is by interfering with cholesterol synthesis which is necessary for the production of certain proteins responsible for glucose uptake into cells such as GLUT1.  The study has been criticized due to perceived flaws in the study design, although Paul M. Ridker, lead investigator of the JUPITER trial, has responded to these criticisms in length. By 1978, Merck had isolated lovastatin (mevinolin, MK803) from the fungus Aspergillus terreus, first marketed in 1987 as Mevacor. An overview on the mechanism of action of statins: HMG CoA reductase inhibitors,or statins are widely prescribed drugs. These natural statins probably function to inhibit HMG-CoA reductase enzymes in bacteria and fungi that compete with the producer. , Older adults who receive statin therapy at time of discharge from the hospital after an inpatient stay have been studied. Statins are thought to have diabetogenic effects due to their action on several mechanisms converging on glucose regulation and pancreatic beta cells. , Several meta-analyses have found no increased risk of cancer, and some meta-analyses have found a reduced risk. Statins act by competitively inhibiting HMG-CoA reductase, the rate-limiting enzyme of the mevalonate pathway.  They recommended selective use of low-to-moderate doses statins in the same adults who have a calculated 10-year cardiovascular disease event risk of 7.5–10% or greater. A variety of natural statins are produced by Penicillium and Aspergillusf… Cardiovasc Res. Combining any statin with a fibrate or niacin (other categories of lipid-lowering drugs) increases the risks for rhabdomyolysis to almost 6.0 per 10,000 person-years.  Endo and his team reasoned that certain microorganisms may produce inhibitors of the enzyme to defend themselves against other organisms, as mevalonate is a precursor of many substances required by organisms for the maintenance of their cell walls or cytoskeleton (isoprenoids). In addition, they can exert antiatherosclerotic effects independently of their hypolipidemic action. 2000 Sep;47(4):648-57. doi: 10.1016/s0008-6363(00)00146-2. The Association of 3-Hydroxy-3-Methylglutaryl-CoA Reductase, Apolipoprotein E, and Solute Carrier Organic Anion Genetic Variants with Atorvastatin Response among Jordanian Patients with Type 2 Diabetes.  The British group mentions antifungal properties, with no mention of HMG-CoA reductase inhibition.  In people over the age of 70, statins decrease the risk of cardiovascular disease but only in those with a history of heavy cholesterol blockage in their arteries. |  Rhabdomyolysis can in turn result in life-threatening kidney injury.  However, critics such as Steven E. Nissen say that the AHA/ACC guidelines were not properly validated, overestimate the risk by at least 50%, and recommend statins for patients who will not benefit, based on populations whose observed risk is lower than predicted by the guidelines. doi: 10.3390/nu12103058. , This article is about cholesterol-lowering drugs.  Due to patent expirations, several statins[specify] became available in 2016 as less expensive generics.