In adults with diabetes who do not have advanced artery disease, a drug called evolocumab lowers LDL cholesterol levels from 111 mg/dL to 52 mg/dL after 48 weeks of treatment, even when patients are...
Mechanism
Synthesis from 1 study
A drug blocks a protein that normally destroys cholesterol-removing receptors in the liver. With those receptors preserved, the liver pulls more bad cholesterol out of the blood, lowering its levels significantly. This is the only known way the drug works, and it fully explains the observed drop in...
Most probable mechanism
A special protein called PCSK9 normally tells liver cells to destroy their LDL receptors, which are needed to remove bad cholesterol from the blood. When a drug blocks PCSK9, the liver keeps more of these receptors on its surface, allowing it to pull more bad cholesterol out of the bloodstream and break it down, which lowers the amount of cholesterol circulating in the body.
A monoclonal antibody binds to circulating PCSK9 protein with high affinity, preventing it from interacting with LDL receptors on hepatocytes
LDL receptors are not targeted for degradation in lysosomes and are instead recycled back to the hepatocyte cell membrane
Increased density of functional LDL receptors on hepatocyte surfaces enhances the uptake and clearance of LDL particles from plasma
Plasma LDL cholesterol concentration decreases as a direct result of enhanced hepatic clearance
Evidence from Studies
Supporting (1)
Community contributions welcome
Evolocumab to Reduce First Major Cardiovascular Events in Patients Without Known Significant Atherosclerosis and With Diabetes
Contradicting (0)
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Gold Standard Evidence Needed
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