Journal
ANNALS OF MEDICINE
Volume 52, Issue 5, Pages 162-177Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/07853890.2020.1775287
Keywords
Lipoprotein(a); atherosclerosis; pathophysiology; treatment
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Lipoprotein(a) (Lp(a)) was discovered more than 50 years ago, and a decade later, it was recognized as a risk factor for coronary artery disease. However, it has gained importance only in the past 10 years, with emergence of drugs that can effectively decrease its levels. Lp(a) is a low-density lipoprotein (LDL) with an added apolipoprotein(a) attached to the apolipoprotein B componentviaa disulphide bond. Circulating levels of Lp(a) are mainly genetically determined. Lp(a) has many functions, which include proatherosclerotic, prothrombotic and pro-inflammatory roles. Here, we review recent data on the role of Lp(a) in the atherosclerotic process, and treatment options for patients with cardiovascular diseases. Currently 'Proprotein convertase subtilisin/kexin type 9' (PCSK9) inhibitors that act through non-specific reduction of Lp(a) are the only drugs that have shown effectiveness in clinical trials, to provide reductions in cardiovascular morbidity and mortality. The effects of PCSK9 inhibitors are not purely through Lp(a) reduction, but also through LDL cholesterol reduction. Finally, we discuss new drugs on the horizon, and gene-based therapies that affect transcription and translation of apolipoprotein(a) mRNA. Clinical trials in patients with high Lp(a) and low LDL cholesterol might tell us whether Lp(a) loweringper sedecreases cardiovascular morbidity and mortality.KEY MESSAGES Lipoprotein(a) is an important risk factor in patients with cardiovascular diseases. Lipoprotein(a) has many functions, which include proatherosclerotic, prothrombotic and pro-inflammatory roles. Treatment options to lower lipoprotein(a) levels are currently scarce, but new drugs are on the horizon.
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