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Lipoprotein(a) and Atrial Fibrillation: Mechanistic Insights and Therapeutic Approaches.

Int J Med Sci

January 2025

Department of Cardiology, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan Province, People's Republic of China.

Elevated lipoprotein(a) [Lp(a)] levels are increasingly recognized as a significant risk factor for cardiovascular diseases and may also contribute to atrial fibrillation (AF). This review investigated the indirect mechanisms through which Lp(a) may influence AF, including proatherogenic, prothrombotic, and proinflammatory pathways. Traditional lipid-lowering therapies, such as lifestyle modifications and statins, have limited effects on Lp(a) levels.

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Oxidative modifications of lipoproteins play a crucial role in the initiation of atherosclerotic cardiovascular diseases (ASCVDs). Nowadays, the one effective strategy for the treatment of patients with hyperlipoproteinemia(a) is lipoprotein apheresis (LA), which has a pleiotropic effect on reducing the risk of ASCVDs. The significance of oxidative susceptibility of the LDL fraction in ASCVDs has been extensively studied.

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The influence of lipoprotein(a) on aortic valve calcification in patients undergoing transcatheter aortic valve replacement.

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December 2024

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Background: Elevated levels of lipoprotein(a) (Lp[a]) have been recognized as substantial risk factors for cardiovascular disease and aortic stenosis (AS). However, the specific role of Lp(a) in promoting aortic valve calcification (AVC) and influencing mortality in elderly, multimorbid patients undergoing transcatheter aortic valve replacement (TAVR) remains unclear and warrants further investigation.

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Article Synopsis
  • Lipoprotein(a) [Lp(a)] is recognized as a key independent risk factor for atherosclerotic cardiovascular disease (ASCVD), prompting research into various lipid-lowering drugs that might reduce its levels.
  • A systematic review of 29 studies showed that traditional lipid-lowering agents like statins and fibrates generally do not significantly affect Lp(a) concentrations, whereas Lp(a) apheresis and PCSK-9 inhibitors were effective.
  • Emerging RNA-targeting therapies, such as anti-sense oligonucleotides, demonstrated promise in lowering Lp(a) levels, but it's still unclear if these reductions will lead to fewer cardiovascular events in patients.
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