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Bellomo TR, Liu Y, Gilliland TC, Miksenas H, Haidermota S, Wong M, Hu X, Cristino JR, Browne A, Plutzky J, Tsimikas S, Januzzi JL, Natarajan P. Associations between lipoprotein(a), oxidized phospholipids, and extracoronary vascular disease. J Lipid Res 2024; 65:100585. [PMID: 38942114 PMCID: PMC11298641 DOI: 10.1016/j.jlr.2024.100585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 06/20/2024] [Accepted: 06/21/2024] [Indexed: 06/30/2024] Open
Abstract
The roles of lipoprotein(a) [Lp(a)] and related oxidized phospholipids (OxPLs) in the development and progression of coronary disease is known, but their influence on extracoronary vascular disease is not well-established. We sought to evaluate associations between Lp(a), OxPL apolipoprotein B (OxPL-apoB), and apolipoprotein(a) (OxPL-apo(a)) with angiographic extracoronary vascular disease and incident major adverse limb events (MALEs). Four hundred forty-six participants who underwent coronary and/or peripheral angiography were followed up for a median of 3.7 years. Lp(a) and OxPLs were measured before angiography. Elevated Lp(a) was defined as ≥150 nmol/L. Elevated OxPL-apoB and OxPL-apo(a) were defined as greater than or equal to the 75th percentile (OxPL-apoB ≥8.2 nmol/L and OxPL-apo(a) ≥35.8 nmol/L, respectively). Elevated Lp(a) had a stronger association with the presence of extracoronary vascular disease compared to OxPLs and was minimally improved with the addition of OxPLs in multivariable models. Compared to participants with normal Lp(a) and OxPL concentrations, participants with elevated Lp(a) levels were twice as likely to experience a MALE (odds ratio: 2.14, 95% confidence interval: 1.03, 4.44), and the strength of the association as well as the C statistic of 0.82 was largely unchanged with the addition of OxPL-apoB and OxPL-apo(a). Elevated Lp(a) and OxPLs are risk factors for progression and complications of extracoronary vascular disease. However, the addition of OxPLs to Lp(a) does not provide additional information about risk of extracoronary vascular disease. Therefore, Lp(a) alone captures the risk profile of Lp(a), OxPL-apoB, and OxPL-apo(a) in the development and progression of atherosclerotic plaque in peripheral arteries.
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Affiliation(s)
- Tiffany R Bellomo
- Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Yuxi Liu
- Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Thomas C Gilliland
- Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Program in Medical and Population Genetics and the Cardiovascular Disease Initiative, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Hannah Miksenas
- Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Sara Haidermota
- Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Megan Wong
- Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Xingdi Hu
- Novartis Pharmaceuticals Corporation, Novartis, East Hanover, NJ, USA
| | | | - Auris Browne
- Novartis Pharmaceuticals Corporation, Novartis, East Hanover, NJ, USA
| | - Jorge Plutzky
- Division of Cardiology, Brigham and Women's Hospital, Boston, Harvard Medical School, Boston, MA, USA
| | - Sotirios Tsimikas
- Sulpizio Cardiovascular Center, University of California San Diego, La Jolla, CA, USA
| | - James L Januzzi
- Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Cardiology Division, Baim Institute for Clinical Research, Boston, MA, USA
| | - Pradeep Natarajan
- Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Program in Medical and Population Genetics and the Cardiovascular Disease Initiative, Broad Institute of Harvard and MIT, Cambridge, MA, USA.
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Hou X, Zhang X. Enhancing the evaluation of acute ischemic stroke risk in individuals with non-valvular atrial fibrillation by including laboratory indicators. Sci Rep 2024; 14:6844. [PMID: 38514850 PMCID: PMC10958006 DOI: 10.1038/s41598-024-57497-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 03/19/2024] [Indexed: 03/23/2024] Open
Abstract
To investigate the clinical significance of the CHA2DS2-VASc-60 score, lipoprotein (a) [Lp(a)], red blood cell distribution width (RDW), and their combined effect in patients with non-valvular atrial fibrillation (NVAF) who experience acute ischemic stroke (AIS). This retrospective analysis was conducted on the clinical data of hospitalized patients with NVAF at the Third Affiliated Hospital of Anhui Medical University between April 1, 2020, and April 1, 2023. Based on the diagnosis of acute ischemic stroke (AIS), the patients were divided into two groups: the AIS group (150 cases of NVAF patients with comorbid AIS) and the non-AIS group (163 cases of NVAF patients without AIS). We performed CHA2DS2-VASc-60 scoring for all patients and collected their laboratory indicators and echocardiographic indicators during hospitalization. The study comprised 313 individuals with NVAF in total. There is a statistically significant difference (P < 0.05) in the comparison of CHA2DS2-VASc-60 score (5.68 ± 1.12 vs. 3.67 ± 1.47), Lp(a) [23.98 (13.28, 42.22) vs. 14.32 (7.96, 21.91)] and RDW (13.67 ± 1.25 vs. 12.94 ± 0.76) between NVAF patients with and without concomitant AIS. The results of the Spearman correlation analysis demonstrate a positive association between Lp(a) and RDW levels and both the CHA2DS2-VASc score and the CHA2DS2-VASc-60 score in patients with NVAF. Multivariate logistic regression analysis revealed that CHA2DS2-VASc-60 score [OR = 6.549, 95% CI: 4.110-10.433, P < 0.05], Lp(a) [OR = 1.023, 95% CI: 1.005-1.041, P < 0.05], and RDW [OR = 1.644, 95% CI: 1.071-2.525, P < 0.05] were independent risk factors for AIS in patients with non-valvular atrial fibrillation (NVAF). The receiver operator characteristic (ROC) curves showed that the area under the curve of CHA2DS2-VASc-60 score, Lp(a), RDW, and CHA2DS2-VASc-60 score combined with Lp(a) and RDW predicted that NVAF patients with AIS were 0.881 [95% CI: 0.804-0.906], 0.685 [95% CI: 0.626-0.744], 0.695 [95% CI: 0.637-0.754], and 0.906 [95% CI: 0.845-0.921], respectively. The CHA2DS2-VASc-60 score, Lp(a), and RDW were significantly increased in NVAF patients with AIS, which were independent risk factors for NVAF patients with AIS. The combination of the three has a high predictive capacity for NVAF patients with AIS.
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Affiliation(s)
- Xin Hou
- Department of Cardiology, The Third Affiliated Hospital of Anhui Medical University (The First People's Hospital of Hefei), Hefei, 230001, Anhui, China
| | - Xiaohong Zhang
- Department of Cardiology, The Third Affiliated Hospital of Anhui Medical University (The First People's Hospital of Hefei), Hefei, 230001, Anhui, China.
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Abstract
Prolonged or excessive exposure to oxidized phospholipids (OxPLs) generates chronic inflammation. OxPLs are present in atherosclerotic lesions and can be detected in plasma on apolipoprotein B (apoB)-containing lipoproteins. When initially conceptualized, OxPL-apoB measurement in plasma was expected to reflect the concentration of minimally oxidized LDL, but, surprisingly, it correlated more strongly with plasma lipoprotein(a) (Lp(a)) levels. Indeed, experimental and clinical studies show that Lp(a) particles carry the largest fraction of OxPLs among apoB-containing lipoproteins. Plasma OxPL-apoB levels provide diagnostic information on the presence and extent of atherosclerosis and improve the prognostication of peripheral artery disease and first and recurrent myocardial infarction and stroke. The addition of OxPL-apoB measurements to traditional cardiovascular risk factors improves risk reclassification, particularly in patients in intermediate risk categories, for whom improving decision-making is most impactful. Moreover, plasma OxPL-apoB levels predict cardiovascular events with similar or greater accuracy than plasma Lp(a) levels, probably because this measurement reflects both the genetics of elevated Lp(a) levels and the generalized or localized oxidation that modifies apoB-containing lipoproteins and leads to inflammation. Plasma OxPL-apoB levels are reduced by Lp(a)-lowering therapy with antisense oligonucleotides and by lipoprotein apheresis, niacin therapy and bariatric surgery. In this Review, we discuss the role of role OxPLs in the pathophysiology of atherosclerosis and Lp(a) atherogenicity, and the use of OxPL-apoB measurement for improving prognosis, risk reclassification and therapeutic interventions.
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Affiliation(s)
- Sotirios Tsimikas
- Division of Cardiovascular Medicine, University of California San Diego, La Jolla, CA, USA.
| | - Joseph L Witztum
- Division of Endocrinology and Metabolism, University of California San Diego, La Jolla, CA, USA
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Harb T, Ziogos E, Schär M, Brown TT, Lai S, Gerstenblith G, Hays AG, Leucker TM. Rapid Improvement of Coronary Endothelial Function With PCSK9 Inhibition in People With HIV Is Associated With Reduced Lipoprotein (a) and Not LDL-cholesterol. Circ Cardiovasc Imaging 2023; 16:e015693. [PMID: 37772401 PMCID: PMC10591943 DOI: 10.1161/circimaging.123.015693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Affiliation(s)
- Tarek Harb
- Division of Cardiology, Department of Medicine (T.H., E.Z., G.G., A.G.H., T.M.L.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Efthymios Ziogos
- Division of Cardiology, Department of Medicine (T.H., E.Z., G.G., A.G.H., T.M.L.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Michael Schär
- Division of Magnetic Resonance Research, Department of Radiology (M.S.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Todd T Brown
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine (T.T.B.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Shenghan Lai
- Department of Epidemiology and Public Health, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD (S.L.)
| | - Gary Gerstenblith
- Division of Cardiology, Department of Medicine (T.H., E.Z., G.G., A.G.H., T.M.L.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Allison G Hays
- Division of Cardiology, Department of Medicine (T.H., E.Z., G.G., A.G.H., T.M.L.), Johns Hopkins University School of Medicine, Baltimore, MD
| | - Thorsten M Leucker
- Division of Cardiology, Department of Medicine (T.H., E.Z., G.G., A.G.H., T.M.L.), Johns Hopkins University School of Medicine, Baltimore, MD
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Bhatia HS, Wilkinson MJ. Lipoprotein(a): Evidence for Role as a Causal Risk Factor in Cardiovascular Disease and Emerging Therapies. J Clin Med 2022; 11:6040. [PMID: 36294361 PMCID: PMC9604626 DOI: 10.3390/jcm11206040] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/20/2022] [Accepted: 10/07/2022] [Indexed: 08/03/2023] Open
Abstract
Lipoprotein(a) (Lp(a)) is an established risk factor for multiple cardiovascular diseases. Several lines of evidence including mechanistic, epidemiologic, and genetic studies support the role of Lp(a) as a causal risk factor for atherosclerotic cardiovascular disease (ASCVD) and aortic stenosis/calcific aortic valve disease (AS/CAVD). Limited therapies currently exist for the management of risk associated with elevated Lp(a), but several targeted therapies are currently in various stages of clinical development. In this review, we detail evidence supporting Lp(a) as a causal risk factor for ASCVD and AS/CAVD, and discuss approaches to managing Lp(a)-associated risk.
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Kim DS, Khandelwal A. Lipoprotein(a) and Incident Atrial Fibrillation: Leveraging Nature's Randomization to Identify Novel Causal Associations. J Am Coll Cardiol 2022; 79:1591-1593. [PMID: 35450576 DOI: 10.1016/j.jacc.2022.02.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 02/08/2022] [Indexed: 10/18/2022]
Affiliation(s)
- Daniel Seung Kim
- Division of Cardiovascular Medicine, Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA.
| | - Abha Khandelwal
- Division of Cardiovascular Medicine, Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA
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Koutsogianni AD, Liberopoulos E, Tellis K, Tselepis AD. Oxidized phospholipids and lipoprotein(a): An update. Eur J Clin Invest 2022; 52:e13710. [PMID: 34837383 DOI: 10.1111/eci.13710] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 10/21/2021] [Accepted: 10/21/2021] [Indexed: 12/17/2022]
Abstract
Over the past few years, there has been an undiminished interest in lipoprotein(a) [Lp(a)] and oxidized phospholipids (OxPLs), mainly carried on this lipoprotein. Elevated Lp(a) has been established as an independent causal risk factor for cardiovascular disease. OxPLs play an important role in atherosclerosis. The main questions that remain to be answered, however, is to what extent OxPLs contribute to the atherogenicity of Lp(a), what effect hypolipidaemic medications may have on their levels and the potential clinical benefit of their reduction. This narrative review aimed to summarize currently available data on OxPLs and cardiovascular risk, as well as the effect of established and emerging hypolipidaemic medications on Lp(a)-OxPLs.
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Affiliation(s)
| | - Evangelos Liberopoulos
- Department of Internal Medicine, Faculty of Medicine, University of Ioannina, Ioannina, Greece
| | - Konstantinos Tellis
- Department of Chemistry, Atherothrombosis Research Centre/Laboratory of Biochemistry, University of Ioannina, Ioannina, Greece
| | - Alexandros D Tselepis
- Department of Chemistry, Atherothrombosis Research Centre/Laboratory of Biochemistry, University of Ioannina, Ioannina, Greece
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