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Nieman K, García-García HM, Hideo-Kajita A, Collet C, Dey D, Pugliese F, Weissman G, Tijssen JGP, Leipsic J, Opolski MP, Ferencik M, Lu MT, Williams MC, Bruining N, Blanco PJ, Maurovich-Horvat P, Achenbach S. Standards for quantitative assessments by coronary computed tomography angiography (CCTA): An expert consensus document of the society of cardiovascular computed tomography (SCCT). J Cardiovasc Comput Tomogr 2024:S1934-5925(24)00341-1. [PMID: 38849237 DOI: 10.1016/j.jcct.2024.05.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/18/2024] [Accepted: 05/23/2024] [Indexed: 06/09/2024]
Abstract
In current clinical practice, qualitative or semi-quantitative measures are primarily used to report coronary artery disease on cardiac CT. With advancements in cardiac CT technology and automated post-processing tools, quantitative measures of coronary disease severity have become more broadly available. Quantitative coronary CT angiography has great potential value for clinical management of patients, but also for research. This document aims to provide definitions and standards for the performance and reporting of quantitative measures of coronary artery disease by cardiac CT.
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Affiliation(s)
- Koen Nieman
- Stanford University School of Medicine and Cardiovascular Institute, Stanford, CA, United States.
| | - Hector M García-García
- Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC, United States.
| | | | - Carlos Collet
- Onze Lieve Vrouwziekenhuis, Cardiovascular Center Aalst, Aalst, Belgium
| | - Damini Dey
- Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Francesca Pugliese
- NIHR Cardiovascular Biomedical Research Unit at Barts, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London & Department of Cardiology, Barts Health NHS Trust, London, UK
| | - Gaby Weissman
- Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC, United States
| | - Jan G P Tijssen
- Department of Cardiology, Academic Medical Center, Room G4-230, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands
| | - Jonathon Leipsic
- Department of Radiology and Medicine (Cardiology), University of British Columbia, Vancouver, BC, Canada
| | - Maksymilian P Opolski
- Department of Interventional Cardiology and Angiology, National Institute of Cardiology, Warsaw, Poland
| | - Maros Ferencik
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, OR, United States
| | - Michael T Lu
- Cardiovascular Imaging Research Center, Massachusetts General Hospital & Harvard Medical School, Boston, MA, United States
| | - Michelle C Williams
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Nico Bruining
- Department of Cardiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | | | - Pal Maurovich-Horvat
- MTA-SE Cardiovascular Imaging Research Group, Medical Imaging Centre, Semmelweis University, Budapest, Hungary
| | - Stephan Achenbach
- Department of Cardiology, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
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Ding KR, Lakshmanan S, Holda M, Kinninger A, Manubolu VS, Joshi T, Golub I, Mao SS, Budoff MJ, Roy SK. Methods and Reproducibility of Liver Fat Measurement Using 3-Dimensional Liver Segmentation From Noncontrast Computed Tomography in EVAPORATE Cohort. J Comput Assist Tomogr 2024; 48:49-54. [PMID: 37531634 DOI: 10.1097/rct.0000000000001521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
OBJECTIVE Nonalcoholic fatty liver disease not only shares multiple risk factors with cardiovascular disease but also independently predicts its increased risk and related outcomes. Here, we evaluate reproducibility of 3-dimensional (3D) liver volume segmentation method to identify fatty liver on noncontrast cardiac computed tomography (CT) and compare measures with previously validated 2-dimensional (2D) segmentation CT criteria for the measurement of liver fat. METHODS The study included 68 participants enrolled in the EVAPORATE trial and underwent serial noncontrast cardiac CT. Liver attenuation < 40 Hounsfield units (HU) was used for diagnosing fatty liver, as done in the MESA study. Two-dimensional and 3D segmentation of the liver were performed by Philips software. Bland-Altman plot analysis was used to assess reproducibility. RESULTS Interreader reproducibility of 3D liver mean HU measurements was 96% in a sample of 111 scans. Reproducibility of 2D and 3D liver mean HU measurements was 93% in a sample of 111 scans. Reproducibility of change in 2D and 3D liver mean HU was 94% in 68 scans. Kappa, a measure of agreement in which the 2D and 3D measures both identified fatty liver, was excellent at 96.4% in 111 scans. CONCLUSIONS Fatty liver can be reliably diagnosed and measured serially in a stable and reproducible way by 3D liver segmentation of noncontrast cardiac CT scans. Future studies need to explore the sensitivity and stability of measures for low liver fat content by 3D segmentation, over the current 2D methodology. This measure can serve as an imaging biomarker to understand mechanistic correlations between atherosclerosis, fatty liver, and cardiovascular disease risk.
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Affiliation(s)
- Kimberly R Ding
- From the Department of Medicine, Harbor-UCLA Medical Center, Torrance, CA
| | - Suvasini Lakshmanan
- Department of Cardiology, Harbor-UCLA Medical Center Lundquist Institute, Torrance, CA
| | - Mateusz Holda
- Department of Cardiology, Harbor-UCLA Medical Center Lundquist Institute, Torrance, CA
| | - April Kinninger
- Department of Cardiology, Harbor-UCLA Medical Center Lundquist Institute, Torrance, CA
| | - Venkat S Manubolu
- Department of Cardiology, Harbor-UCLA Medical Center Lundquist Institute, Torrance, CA
| | - Tej Joshi
- Department of Cardiology, Harbor-UCLA Medical Center Lundquist Institute, Torrance, CA
| | - Ilana Golub
- Department of Cardiology, Harbor-UCLA Medical Center Lundquist Institute, Torrance, CA
| | - Song S Mao
- Department of Cardiology, Harbor-UCLA Medical Center Lundquist Institute, Torrance, CA
| | - Matthew J Budoff
- Department of Cardiology, Harbor-UCLA Medical Center Lundquist Institute, Torrance, CA
| | - Sion K Roy
- Department of Cardiology, Harbor-UCLA Medical Center Lundquist Institute, Torrance, CA
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3
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Buckler AJ, Doros G, Kinninger A, Lakshmanan S, Le VT, Libby P, May HT, Muhlestein JB, Nelson JR, Nicolaou A, Roy SK, Shaikh K, Shekar C, Tayek JA, Zheng L, Bhatt DL, Budoff MJ. Quantitative imaging biomarkers of coronary plaque morphology: insights from EVAPORATE. Front Cardiovasc Med 2023; 10:1204071. [PMID: 37600044 PMCID: PMC10435977 DOI: 10.3389/fcvm.2023.1204071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/12/2023] [Indexed: 08/22/2023] Open
Abstract
Aims Residual cardiovascular risk persists despite statin therapy. In REDUCE-IT, icosapent ethyl (IPE) reduced total events, but the mechanisms of benefit are not fully understood. EVAPORATE evaluated the effects of IPE on plaque characteristics by coronary computed tomography angiography (CCTA). Given the conclusion that the IPE-treated patients demonstrate that plaque burden decreases has already been published in the primary study analysis, we aimed to demonstrate whether the use of an analytic technique defined and validated in histological terms could extend the primary study in terms of whether such changes could be reliably seen in less time on drug, at the individual (rather than only at the cohort) level, or both, as neither of these were established by the primary study result. Methods and Results EVAPORATE randomized the patients to IPE 4 g/day or placebo. Plaque morphology, including lipid-rich necrotic core (LRNC), fibrous cap thickness, and intraplaque hemorrhage (IPH), was assessed using the ElucidVivo® (Elucid Bioimaging Inc.) on CCTA. The changes in plaque morphology between the treatment groups were analyzed. A neural network to predict treatment assignment was used to infer patient representation that encodes significant morphological changes. Fifty-five patients completed the 18-month visit in EVAPORATE with interpretable images at each of the three time points. The decrease of LRNC between the patients on IPE vs. placebo at 9 months (reduction of 2 mm3 vs. an increase of 41 mm3, p = 0.008), widening at 18 months (6 mm3 vs. 58 mm3 increase, p = 0.015) were observed. While not statistically significant on a univariable basis, reductions in wall thickness and increases in cap thickness motivated multivariable modeling on an individual patient basis. The per-patient response assessment was possible using a multivariable model of lipid-rich phenotype at the 9-month follow-up, p < 0.01 (sustained at 18 months), generalizing well to a validation cohort. Conclusion Plaques in the IPE-treated patients acquired more characteristics of stability. Reliable assessment using histologically validated analysis of individual response is possible at 9 months, with sustained stabilization at 18 months, providing a quantitative basis to elucidate drug mechanism and assess individual patient response.
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Affiliation(s)
- Andrew J. Buckler
- Department of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Elucid Bioimaging Inc., Boston, MA, United States
| | | | - April Kinninger
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Suvasini Lakshmanan
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Viet T. Le
- Intermountain Heart Institute, Intermountain Medical Center, Salt Lake City, UT, United States
- Rocky Mountain University of Health Profession, Provo, UT, United States
| | - Peter Libby
- Brigham and Women’s Hospital Heart & Vascular Center and Harvard Medical School, Boston, MA, United States
| | - Heidi T. May
- Intermountain Heart Institute, Intermountain Medical Center, Salt Lake City, UT, United States
| | - Joseph B. Muhlestein
- Intermountain Heart Institute, Intermountain Medical Center, Salt Lake City, UT, United States
| | - John R. Nelson
- California Cardiovascular Institute, Fresno, CA, United States
| | | | - Sion K. Roy
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Kashif Shaikh
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Chandana Shekar
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - John A. Tayek
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Luke Zheng
- BAIM Institute, Boston, MA, United States
| | - Deepak L. Bhatt
- Brigham and Women’s Hospital Heart & Vascular Center and Harvard Medical School, Boston, MA, United States
| | - Matthew J. Budoff
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA, United States
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Rabbat MG, Lakshmanan S, Benjamin MM, Doros G, Kinninger A, Budoff MJ, Bhatt DL. Benefit of icosapent ethyl on coronary physiology assessed by computed tomography angiography fractional flow reserve: EVAPORATE-FFRCT. Eur Heart J Cardiovasc Imaging 2023:7135508. [PMID: 37082990 PMCID: PMC10284047 DOI: 10.1093/ehjci/jead063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 01/08/2022] [Accepted: 03/10/2023] [Indexed: 04/22/2023] Open
Abstract
AIMS Icosapent ethyl (IPE) significantly reduced ischaemic events in statin-treated patients with atherosclerosis or diabetes and elevated triglycerides in REDUCE-IT, including large reductions in myocardial infarction and elective, urgent, and emergent coronary revascularization. However, the mechanisms driving this clinical benefit are not fully known. The EVAPORATE trial demonstrated that IPE significantly reduced plaque burden. No study to date has assessed the impact of IPE on coronary physiology. Fractional flow reserve (FFR) derived from coronary computed tomography angiography (CTA) data sets (FFRCT) applies computational fluid dynamics to calculate FFR values in epicardial coronary arteries. Our objective was to assess the impact of IPE on coronary physiology assessed by FFRCT using imaging data from EVAPORATE. METHODS AND RESULTS A total of 47 patients and of 507 coronary lesions at baseline, 9 months, and 18 months with coronary CTA and FFRCT were studied in a blinded core lab. The pre-specified primary endpoint was the FFRCT value in the distal coronary segment from baseline to follow-up in the most diseased vessel per patient using IPE compared with placebo. The pre-specified secondary endpoint was the change in translesional FFRCT (ΔFFRCT) across the most severe (minimum 30% diameter stenosis) coronary lesion per vessel. Baseline FFRCT was similar for IPE compared with placebo (0.83 ± 0.08 vs. 0.84 ± 0.08, P = 0.55). There was significant improvement in the primary endpoint, as IPE improved mean distal segment FFRCT at 9- and 18-month follow-up compared with placebo (0.01 ± 0.05 vs. -0.05 ± 0.09, P = 0.02, and -0.01 ± 0.09 vs. -0.09 ± 0.12, P = 0.03, respectively). ΔFFRCT in 140 coronary lesions was improved, although not statistically significant, with IPE compared with placebo (-0.06 ± 0.08 vs. -0.09 ± 0.1, P = 0.054). CONCLUSION Icosapent ethyl demonstrated significant benefits in coronary physiology compared with placebo. This early and sustained improvement in FFRCT at 9- and 18-month follow-up provides mechanistic insight into the clinical benefit observed in the REDUCE-IT trial. Furthermore, this is the first assessment of FFRCT to determine drug effect.
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Affiliation(s)
- Mark G Rabbat
- Department of Medicine, Division of Cardiology, Loyola University Medical Center, 2160 S. 1st Avenue, Maywood, IL 60153, USA
- Department of Medicine, Division of Cardiology, Edward Hines Jr. VA Hospital, 5000 South 5th Avenue, Hines, IL, USA
| | - Suvasini Lakshmanan
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, Torrance, CA 90502, USA
| | - Mina M Benjamin
- Department of Medicine, Division of Cardiology, Loyola University Medical Center, 2160 S. 1st Avenue, Maywood, IL 60153, USA
| | - Gheorghe Doros
- Department of Biostatistics, Baim Institute for clinical research, Boston University, 930 Commonwealth Ave #3, Boston, MA 02215, USA
| | - April Kinninger
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, Torrance, CA 90502, USA
| | - Matthew J Budoff
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, Torrance, CA 90502, USA
| | - Deepak L Bhatt
- Mount Sinai Heart, Icahn School of Medicine at Mount Sinai, 1 Gustave Levy Place, Box 1030, New York, NY 10029, USA
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Piña P, Lorenzatti D, Paula R, Daich J, Schenone AL, Gongora C, Garcia MJ, Blaha MJ, Budoff MJ, Berman DS, Virani SS, Slipczuk L. Imaging subclinical coronary atherosclerosis to guide lipid management, are we there yet? Am J Prev Cardiol 2022; 13:100451. [PMID: 36619296 PMCID: PMC9813535 DOI: 10.1016/j.ajpc.2022.100451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 12/07/2022] [Accepted: 12/17/2022] [Indexed: 12/23/2022] Open
Abstract
Atherosclerotic cardiovascular disease risk (ASCVD) is an ongoing epidemic, and lipid abnormalities are its primordial cause. Most individuals suffering a first ASCVD event are previously asymptomatic and often do not receive preventative therapies. The cornerstone of primary prevention has been the identification of individuals at risk through risk calculators based on clinical and laboratory traditional risk factors plus risk enhancers. However, it is well accepted that a clinical risk calculator misclassifies a significant proportion of individuals leading to the prescription of a lipid-lowering medication with very little yield or a missed opportunity for lipid-lowering agents with a potentially preventable event. The development of coronary artery calcium scoring (CAC) and CT coronary angiography (CCTA) provide complementary tools to directly visualize coronary plaque and other risk-modifying imaging components that can potentially provide individualized lipid management. Understanding patient selection for CAC or potentially CCTA and the risk implications of the different parameters provided, such as CAC score, coronary stenosis, plaque characteristics and burden, epicardial adipose tissue, and pericoronary adipose tissue, have grown more complex as technologies evolve. These parameters directly affect the shared decision with patients to start or withhold lipid-lowering therapies, to adjust statin intensity or LDL cholesterol goals. Emerging lipid lowering studies with non-invasive imaging as a guide to patient selection and treatment efficacy, plus the evolution of lipid lowering therapies from statins to a diverse armament of newer high-cost agents have pushed these two fields forward with a complex interaction. This review will discuss existing risk estimators, and non-invasive imaging techniques for subclinical coronary atherosclerosis, traditionally studied using CAC and more recently CCTA with qualitative and quantitative measurements. We will also explore the current data, gaps of knowledge and future directions on the use of these techniques in the risk-stratification and guidance of lipid management.
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Affiliation(s)
- Pamela Piña
- Cardiology Division, Montefiore Medical Center/Albert Einstein College of Medicine. Bronx, NY, USA
| | - Daniel Lorenzatti
- Cardiology Division, Montefiore Medical Center/Albert Einstein College of Medicine. Bronx, NY, USA
| | - Rita Paula
- Cardiology Division, Montefiore Medical Center/Albert Einstein College of Medicine. Bronx, NY, USA
| | - Jonathan Daich
- Cardiology Division, Montefiore Medical Center/Albert Einstein College of Medicine. Bronx, NY, USA
| | - Aldo L Schenone
- Cardiology Division, Montefiore Medical Center/Albert Einstein College of Medicine. Bronx, NY, USA
| | - Carlos Gongora
- Cardiology Division, Montefiore Medical Center/Albert Einstein College of Medicine. Bronx, NY, USA
| | - Mario J Garcia
- Cardiology Division, Montefiore Medical Center/Albert Einstein College of Medicine. Bronx, NY, USA
| | - Michael J Blaha
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease. Baltimore, MD, USA
| | - Matthew J Budoff
- Department of Medicine, Lundquist Institute at Harbor UCLA Medical Center, Torrance, CA, USA
| | - Daniel S Berman
- Department of Imaging, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Salim S Virani
- Section of Cardiology, Department of Medicine. Baylor College of Medicine, and Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX, USA
- The Aga Khan University, Karachi, Pakistan
| | - Leandro Slipczuk
- Cardiology Division, Montefiore Medical Center/Albert Einstein College of Medicine. Bronx, NY, USA
- Corresponding author.
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Muacevic A, Adler JR, Chukwu M, Ehsan P, Aburumman RN, Muthanna SI, Menon SR, Vithani V, Penumetcha SS. Emphasis on Icosapent Ethyl for Cardiovascular Risk Reduction: A Systematic Review. Cureus 2022; 14:e32346. [PMID: 36632258 PMCID: PMC9827995 DOI: 10.7759/cureus.32346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 12/09/2022] [Indexed: 12/13/2022] Open
Abstract
Despite the widespread use of lipid-lowering agents such as statins, cardiovascular disease (CVD) remains the leading cause of mortality worldwide. Icosapent ethyl (IPE) (Vascepa), an ethyl ester of the omega-3 polyunsaturated fatty acid eicosapentaenoic acid (EPA), has gained widespread popularity as an adjunctive agent that targets multiple and additional mechanisms linked to the incidence of cardiovascular (CV) events and the causative pathway of atherosclerosis. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 standards were used to conduct this systematic review. In this review, we assessed various studies from PubMed, PubMed Central (PMC), and Google Scholar to evaluate the mechanisms of action and beneficial effects of IPE in the reduction of CVD outcomes. The Reduction of Cardiovascular Events with Icosapent Ethyl-Intervention Trial (REDUCE-IT) has demonstrated a significant reduction in CV mortality with 4 g/day IPE as compared to placebo. All other trials and observational studies have supported the role of Vascepa in hypertriglyceridemia and CV risk reduction. In conclusion, the use of IPE has been shown to significantly reduce triglyceride levels and reduce CV risks in patients receiving optimal statin therapy.
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7
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Morey BN, Ryu S, Shi Y, Park HW, Lee S. Acculturation and Cardiometabolic Abnormalities Among Chinese and Korean Americans. J Racial Ethn Health Disparities 2022:10.1007/s40615-022-01347-x. [PMID: 35705844 PMCID: PMC9200372 DOI: 10.1007/s40615-022-01347-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 05/16/2022] [Accepted: 05/31/2022] [Indexed: 11/26/2022]
Abstract
Background Studies generally show that higher acculturation is associated with greater cardiovascular disease (CVD) risk among immigrants in the United States (US). However, few studies have compared how proxies of acculturation are differentially associated with metabolic abnormalities measured using objective biomarkers, self-reported diagnosis, and medication use, particularly among East Asian Americans. Methods Survey data and biomarker measurements collected from random (non-fasting) blood samples of Chinese and Korean immigrants in the US (n = 328) were used to examine the associations between two proxies for acculturation (years living in the US and English speaking proficiency) with three cardiometabolic abnormalities (high triglyceride levels, diabetes, and hypercholesterolemia). Poisson regression models estimated prevalence ratios adjusted for demographic characteristics, socioeconomic factors, and body mass index. Gender, Asian subgroup, and household income were tested as potential effect modifiers. Results Living longer in the US was associated with greater likelihood of having high triglycerides. In addition, living longer in the US was associated with greater likelihood of diabetes for people with lower household income and greater likelihood of hypercholesterolemia for people with higher household income. Higher level of English proficiency was less consistently associated with higher cardiometabolic risk, although there was a significant association with greater likelihood of hypercholesterolemia. Conclusions Longer time lived in the US is associated with higher risk of cardiometabolic abnormalities among Chinese and Korean Americans. Future studies of acculturation and cardiometabolic risk should carefully consider potential mechanisms and what proxy measures of acculturation capture. Trial Registration Number NCT03481296, date of registration: 3/29/2018.
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Affiliation(s)
- Brittany N Morey
- Program in Public Health, Department of Health, Society, & Behavior, University of California, Irvine, 653 E. Peltason Dr., Anteater Instruction and Research Building (AIRB) 2022, Irvine, CA, 92697-3957, USA.
| | - Soomin Ryu
- School of Public Policy, University of Maryland, College Park, MD, USA
| | - Yuxi Shi
- Department of Medicine, School of Medicine, University of California, Irvine, Irvine, CA, USA
| | - Hye Won Park
- Department of Medicine, School of Medicine, University of California, Irvine, Irvine, CA, USA
| | - Sunmin Lee
- Department of Medicine, School of Medicine, University of California, Irvine, Irvine, CA, USA
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High Frequency of Microvascular Dysfunction in US Outpatient Clinics: A Sign of High Residual Risk? Data from 7,105 Patients. Int J Vasc Med 2022; 2022:4224975. [PMID: 35036009 PMCID: PMC8758294 DOI: 10.1155/2022/4224975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 10/24/2021] [Accepted: 10/26/2021] [Indexed: 11/18/2022] Open
Abstract
Previous studies have linked peripheral microvascular dysfunction measured by arterial tonometry to high residual risk in on-statin patients. Digital thermal monitoring (DTM) of microvascular function is a new and simplified technique based on fingertip temperature measurements that has been correlated with the burden of atherosclerosis and its risk factors. Here, we report analyses of DTM data from two large US registries: Registry-I (6,084 cases) and Registry-II (1,021 cases) across 49 US outpatient clinics. DTM tests were performed using a VENDYS device during a 5-minute arm-cuff reactive hyperemia. Fingertip temperature falls during cuff inflation and rebounds after deflation. Adjusted maximum temperature rebound was reported as vascular reactivity index (VRI). VRI distributions were similar in both registries, with mean ± SD of 1.58 ± 0.53 in Registry-I and 1.52 ± 0.43 in Registry-II. In the combined dataset, only 18% had optimal VRI (≥2.0) and 82% were either poor (<1.0) or intermediate (1.0-2.0). Women had slightly higher VRI than men (1.62 ± 0.56 vs. 1.54 ± 0.47, p < 0.001). VRI was inversely but mildly correlated with age (r = −0.19, p < 0.001). Suboptimal VRI was found in 72% of patients <50 years, 82% of 50-70 years, and 86% of ≥70 years. Blood pressure was not correlated with VRI. In this largest registry of peripheral microvascular function measurements, suboptimal scores were highly frequent among on-treatment patients, possibly suggesting a significant residual risk. Prospective studies are warranted to validate microvascular dysfunction as an indicator of residual risk.
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9
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Wang C, Enssle J, Pietzner A, Schmöcker C, Weiland L, Ritter O, Jaensch M, Elbelt U, Pagonas N, Weylandt KH. Essential Polyunsaturated Fatty Acids in Blood from Patients with and without Catheter-Proven Coronary Artery Disease. Int J Mol Sci 2022; 23:ijms23020766. [PMID: 35054948 PMCID: PMC8775772 DOI: 10.3390/ijms23020766] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 12/30/2021] [Accepted: 01/07/2022] [Indexed: 01/21/2023] Open
Abstract
Coronary artery disease (CAD) is the leading cause of death worldwide. Statins reduce morbidity and mortality of CAD. Intake of n-3 polyunsaturated fatty acid (n-3 PUFAs), particularly eicosapentaenoic acid (EPA), is associated with reduced morbidity and mortality in patients with CAD. Previous data indicate that a higher conversion of precursor fatty acids (FAs) to arachidonic acid (AA) is associated with increased CAD prevalence. Our study explored the FA composition in blood to assess n-3 PUFA levels from patients with and without CAD. We analyzed blood samples from 273 patients undergoing cardiac catheterization. Patients were stratified according to clinically relevant CAD (n = 192) and those without (n = 81). FA analysis in full blood was performed by gas chromatography. Indicating increased formation of AA from precursors, the ratio of dihomo-gamma-linolenic acid (DGLA) to AA, the delta-5 desaturase index (D5D index) was higher in CAD patients. CAD patients had significantly lower levels of omega-6 polyunsaturated FAs (n-6 PUFA) and n-3 PUFA, particularly EPA, in the blood. Thus, our study supports a role of increased EPA levels for cardioprotection.
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Affiliation(s)
- Chaoxuan Wang
- Division of Medicine, Department of Gastroenterology, Metabolism and Oncology, University Hospital Ruppin-Brandenburg, Brandenburg Medical School, 16816 Neuruppin, Germany; (C.W.); (J.E.); (A.P.); (C.S.); (U.E.)
- Medical Department, Division of Psychosomatic Medicine, Campus Benjamin Franklin, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 12203 Berlin, Germany
| | - Jörg Enssle
- Division of Medicine, Department of Gastroenterology, Metabolism and Oncology, University Hospital Ruppin-Brandenburg, Brandenburg Medical School, 16816 Neuruppin, Germany; (C.W.); (J.E.); (A.P.); (C.S.); (U.E.)
- Faculty of Health Sciences, Joint Faculty of the Brandenburg University of Technology, Brandenburg Medical School and University of Potsdam, 14469 Potsdam, Germany
| | - Anne Pietzner
- Division of Medicine, Department of Gastroenterology, Metabolism and Oncology, University Hospital Ruppin-Brandenburg, Brandenburg Medical School, 16816 Neuruppin, Germany; (C.W.); (J.E.); (A.P.); (C.S.); (U.E.)
| | - Christoph Schmöcker
- Division of Medicine, Department of Gastroenterology, Metabolism and Oncology, University Hospital Ruppin-Brandenburg, Brandenburg Medical School, 16816 Neuruppin, Germany; (C.W.); (J.E.); (A.P.); (C.S.); (U.E.)
| | - Linda Weiland
- Division of Medicine, Department of Cardiology, University Hospital Brandenburg an der Havel, Brandenburg Medical School, 14770 Brandenburg an der Havel, Germany; (L.W.); (O.R.); (M.J.); (N.P.)
| | - Oliver Ritter
- Division of Medicine, Department of Cardiology, University Hospital Brandenburg an der Havel, Brandenburg Medical School, 14770 Brandenburg an der Havel, Germany; (L.W.); (O.R.); (M.J.); (N.P.)
| | - Monique Jaensch
- Division of Medicine, Department of Cardiology, University Hospital Brandenburg an der Havel, Brandenburg Medical School, 14770 Brandenburg an der Havel, Germany; (L.W.); (O.R.); (M.J.); (N.P.)
| | - Ulf Elbelt
- Division of Medicine, Department of Gastroenterology, Metabolism and Oncology, University Hospital Ruppin-Brandenburg, Brandenburg Medical School, 16816 Neuruppin, Germany; (C.W.); (J.E.); (A.P.); (C.S.); (U.E.)
- Medical Department, Division of Psychosomatic Medicine, Campus Benjamin Franklin, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 12203 Berlin, Germany
| | - Nikolaos Pagonas
- Division of Medicine, Department of Cardiology, University Hospital Brandenburg an der Havel, Brandenburg Medical School, 14770 Brandenburg an der Havel, Germany; (L.W.); (O.R.); (M.J.); (N.P.)
| | - Karsten H. Weylandt
- Division of Medicine, Department of Gastroenterology, Metabolism and Oncology, University Hospital Ruppin-Brandenburg, Brandenburg Medical School, 16816 Neuruppin, Germany; (C.W.); (J.E.); (A.P.); (C.S.); (U.E.)
- Faculty of Health Sciences, Joint Faculty of the Brandenburg University of Technology, Brandenburg Medical School and University of Potsdam, 14469 Potsdam, Germany
- Correspondence: ; Tel.: +49-(0)3391-39-3210
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10
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Pareek M, Mason RP, Bhatt DL. Icosapent ethyl: safely reducing cardiovascular risk in adults with elevated triglycerides. Expert Opin Drug Saf 2021; 21:31-42. [PMID: 34253137 DOI: 10.1080/14740338.2021.1954158] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION In patients at high cardiovascular risk, the rate of events remains elevated despite traditional, evidence-based lipid-lowering therapy. Residual hypertriglyceridemia is an important contributor to this risk. However, prior medications with triglyceride-lowering effects have not reduced adverse clinical outcomes in the statin era. AREAS COVERED The present review summarizes evidence and recommendations related to triglyceride-lowering therapy in the primary and secondary preventive settings. We provide an overview of findings from recent meta-analyses, important observational studies, and a detailed description of landmark trials, including the Reduction of Cardiovascular Events with Icosapent Ethyl-Intervention Trial (REDUCE-IT). We further review recommendations from current guidelines. EXPERT OPINION Icosapent ethyl is a stable, highly purified ethyl ester of eicosapentaenoic acid that safely and effectively reduces cardiovascular events in the contemporary setting. It is prescribed at a dose of 2 grams twice daily and is indicated in patients at high cardiovascular risk who have fasting or non-fasting triglyceride levels ≥150 mg/dl despite maximally tolerated statin treatment, or in individuals with triglyceride levels ≥500 mg/dl. Conversely, omega-3 fatty acid preparations containing a combination of eicosapentaenoic acid and docosahexaenoic acid are not indicated for reduction of cardiovascular risk and should be actively deprescribed.
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Affiliation(s)
- Manan Pareek
- Heart & Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,Department of Internal Medicine, Yale New Haven Hospital, Yale University School of Medicine, New Haven, CT, USA.,Department of Cardiology, North Zealand Hospital, Hillerød, Denmark
| | - R Preston Mason
- Heart & Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,Elucida Research LLC, Beverly, MA, USA
| | - Deepak L Bhatt
- Heart & Vascular Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
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11
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Affiliation(s)
- M Wesley Milks
- Division of Cardiovascular Medicine, The Ohio State University College of Medicine, USA
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12
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Effects of mineral oil administration on the pharmacokinetics, metabolism and pharmacodynamics of atorvastatin and pravastatin in mice and dogs. Eur J Pharm Sci 2021; 161:105776. [PMID: 33667667 DOI: 10.1016/j.ejps.2021.105776] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 12/16/2022]
Abstract
We investigated the effects of mineral oil on statin pharmacokinetics and inflammatory markers in animal models. A new synthesis strategy produced regioisomers that facilitated the characterization of the main metabolite (M1) of atorvastatin, a lipophilic statin, in C57BL/6NCrl mice. The chemical structure of M1 in mice was confirmed as ortho-hydroxy β-oxidized atorvastatin. Atorvastatin and M1 pharmacokinetics and inflammatory markers were assessed in C57BL6/J mice given atorvastatin 5 mg/kg/day or 10 mg/kg/day, as a single dose or for 21 days, with or without 10 µL or 30 µL mineral oil. No consistent differences in plasma exposure of atorvastatin or M1 were observed in mice after single or repeat dosing of atorvastatin with or without mineral oil. However, mice administered atorvastatin 10 mg/kg with 30 µL mineral oil for 21 days had significantly increased plasma levels of serum amyloid A (mean 9.6 µg/mL vs 7.9 µg/mL without mineral oil; p < 0.01) and significantly increased proportions of C62Lhigh B cells (mean 18% vs 12% without mineral oil; p = 0.04). There were no statistically significant differences for other inflammatory markers assessed. In dogs, pharmacokinetics of atorvastatin, its two hydroxy metabolites and pravastatin (a hydrophilic statin) were evaluated after single administration of atorvastatin 10 mg plus pravastatin 40 mg with or without 2 g mineral oil. Pharmacokinetics of atorvastatin, hydroxylated atorvastatin metabolites or pravastatin were not significantly different after single dosing with or without mineral oil in dogs. Collectively, the results in mice and dogs indicate that mineral oil does not affect atorvastatin or pravastatin pharmacokinetics, but could cause low-grade inflammation with chronic oral administration, which warrants further investigation.
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13
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Budoff MJ, Bhatt DL, Kinninger A, Lakshmanan S, Muhlestein JB, Le VT, May HT, Shaikh K, Shekar C, Roy SK, Tayek J, Nelson JR. Effect of icosapent ethyl on progression of coronary atherosclerosis in patients with elevated triglycerides on statin therapy: final results of the EVAPORATE trial. Eur Heart J 2021; 41:3925-3932. [PMID: 32860032 PMCID: PMC7654934 DOI: 10.1093/eurheartj/ehaa652] [Citation(s) in RCA: 244] [Impact Index Per Article: 81.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/10/2020] [Accepted: 07/29/2020] [Indexed: 01/09/2023] Open
Abstract
Aims Despite the effects of statins in reducing cardiovascular events and slowing progression of coronary atherosclerosis, significant cardiovascular (CV) risk remains. Icosapent ethyl (IPE), a highly purified eicosapentaenoic acid ethyl ester, added to a statin was shown to reduce initial CV events by 25% and total CV events by 32% in the REDUCE-IT trial, with the mechanisms of benefit not yet fully explained. The EVAPORATE trial sought to determine whether IPE 4 g/day, as an adjunct to diet and statin therapy, would result in a greater change from baseline in plaque volume, measured by serial multidetector computed tomography (MDCT), than placebo in statin-treated patients. Methods and results A total of 80 patients were enrolled in this randomized, double-blind, placebo-controlled trial. Patients had to have coronary atherosclerosis as documented by MDCT (one or more angiographic stenoses with ≥20% narrowing), be on statin therapy, and have persistently elevated triglyceride (TG) levels. Patients underwent an interim scan at 9 months and a final scan at 18 months with coronary computed tomographic angiography. The pre-specified primary endpoint was change in low-attenuation plaque (LAP) volume at 18 months between IPE and placebo groups. Baseline demographics, vitals, and laboratory results were not significantly different between the IPE and placebo groups; the median TG level was 259.1 ± 78.1 mg/dL. There was a significant reduction in the primary endpoint as IPE reduced LAP plaque volume by 17%, while in the placebo group LAP plaque volume more than doubled (+109%) (P = 0.0061). There were significant differences in rates of progression between IPE and placebo at study end involving other plaque volumes including fibrous, and fibrofatty (FF) plaque volumes which regressed in the IPE group and progressed in the placebo group (P < 0.01 for all). When further adjusted for age, sex, diabetes status, hypertension, and baseline TG, plaque volume changes between groups remained significantly different, P < 0.01. Only dense calcium did not show a significant difference between groups in multivariable modelling (P = 0.053). Conclusions Icosapent ethyl demonstrated significant regression of LAP volume on MDCT compared with placebo over 18 months. EVAPORATE provides important mechanistic data on plaque characteristics that may have relevance to the REDUCE-IT results and clinical use of IPE.
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Affiliation(s)
- Matthew J Budoff
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, Torrance, CA 90502, USA
| | - Deepak L Bhatt
- Department of Medicine, Brigham and Women's Hospital Heart & Vascular Center and Harvard Medical School, Boston, MA, USA
| | - April Kinninger
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, Torrance, CA 90502, USA
| | - Suvasini Lakshmanan
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, Torrance, CA 90502, USA
| | - Joseph B Muhlestein
- Intermountain Heart Institute, Intermountain Medical Center, Salt Lake City, UT, USA
| | - Viet T Le
- Intermountain Heart Institute, Intermountain Medical Center, Salt Lake City, UT, USA.,Department of Medicine, Rocky Mountain University of Health Profession, Provo, UT, USA
| | - Heidi T May
- Intermountain Heart Institute, Intermountain Medical Center, Salt Lake City, UT, USA
| | - Kashif Shaikh
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, Torrance, CA 90502, USA
| | - Chandana Shekar
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, Torrance, CA 90502, USA
| | - Sion K Roy
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, Torrance, CA 90502, USA
| | - John Tayek
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, Torrance, CA 90502, USA
| | - John R Nelson
- California Cardiovascular Institute, Fresno, CA, USA
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Wolska A, Reimund M, Sviridov DO, Amar MJ, Remaley AT. Apolipoprotein Mimetic Peptides: Potential New Therapies for Cardiovascular Diseases. Cells 2021; 10:597. [PMID: 33800446 PMCID: PMC8000854 DOI: 10.3390/cells10030597] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 12/13/2022] Open
Abstract
Since the seminal breakthrough of treating diabetic patients with insulin in the 1920s, there has been great interest in developing other proteins and their peptide mimetics as therapies for a wide variety of other medical disorders. Currently, there are at least 60 different peptides that have been approved for human use and over 150 peptides that are in various stages of clinical development. Peptides mimetic of the major proteins on lipoproteins, namely apolipoproteins, have also been developed first as tools for understanding apolipoprotein structure and more recently as potential therapeutics. In this review, we discuss the biochemistry, peptide mimetics design and clinical trials for peptides based on apoA-I, apoE and apoC-II. We primarily focus on applications of peptide mimetics related to cardiovascular diseases. We conclude with a discussion on the limitations of peptides as therapeutic agents and the challenges that need to be overcome before apolipoprotein mimetic peptides can be developed into new drugs.
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Affiliation(s)
- Anna Wolska
- Lipoprotein Metabolism Laboratory, Translational Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA; (M.R.); (D.O.S.); (M.J.A.); (A.T.R.)
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15
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Hritani R, Hussain A, Saeed A, Agarwala A. A lipid lover's guide to novel therapeutics for lipid and cardiovascular risk reduction. Future Cardiol 2021; 17:507-520. [PMID: 33599534 DOI: 10.2217/fca-2020-0216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Lipids and lipoproteins are the target of many novel therapeutics and are an area with great potential for the prevention and treatment of cardiovascular disease (CVD). Reduction of low-density lipoprotein cholesterol has been the mainstay of reducing the burden of CVD, however, several other atherogenic particles have more recently come into the spotlight as potential avenues for primary and/or secondary prevention of CVD. These include triglycerides, high sensitivity C-reactive protein, apolipoprotein A, apolipoprotein C3 and lipoprotein(a). In this review, we showcase novel therapeutics to target lipid and cardiovascular risk reduction that are either in development or that have recently been approved for use. We discuss the mechanisms of action, data from clinical trials and expected effects of each therapy based on the current body of literature.
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Affiliation(s)
- Rama Hritani
- Department of Internal Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Aliza Hussain
- Department of Medicine, Section of Cardiology, Baylor College of Medicine, Houston, TX, USA
| | - Anum Saeed
- Heart & Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Anandita Agarwala
- Cardiovascular Division, Baylor Scott & White Health Heart Hospital Baylor Plano, Plano, TX 75093, USA
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16
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Trivedi K, Le V, Nelson JR. The case for adding eicosapentaenoic acid (icosapent ethyl) to the ABCs of cardiovascular disease prevention. Postgrad Med 2021; 133:28-41. [PMID: 32762268 DOI: 10.1080/00325481.2020.1783937] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 06/15/2020] [Indexed: 01/10/2023]
Abstract
The high-purity eicosapentaenoic acid (EPA) prescription fish oil-derived omega-3 fatty acid (omega-3), icosapent ethyl (IPE), was recently approved by the United States Food and Drug Administration (FDA) for cardiovascular disease (CVD) prevention in high-risk patients. This approval is based on the 25% CVD event risk reduction observed with IPE in the pre-specified primary composite endpoint (cardiovascular [CV] death, nonfatal myocardial infarction, nonfatal stroke, coronary revascularization, or hospitalization for unstable angina) in the landmark Reduction of Cardiovascular Events with Icosapent Ethyl-Intervention Trial (REDUCE-IT). Notably, this reduction in CVD event risk with IPE was an incremental benefit to well-controlled low-density lipoprotein cholesterol; patients in REDUCE-IT had elevated triglyceride (TG) levels (135-499 mg/dL) and either had a history of atherosclerotic CVD or diabetes with additional CV risk factors. Given the CVD event risk reduction in REDUCE-IT, within a year following trial results, several global medical societies added IPE to their clinical guidelines. IPE is a stable, highly purified, FDA-approved prescription EPA ethyl ester. In contrast, mixed omega-3 products (docosahexaenoic acid + EPA combinations) have limited or no evidence for CVD event risk reduction, and nonprescription fish oil dietary supplements are not regulated as medicine by the FDA. We offer our perspective and rationale for why this evidence-based EPA-only formulation, IPE, should be added to the 'E' in the ABCDEF methodology for CV prevention. We provide multiple lines of evidence regarding an unmet need for CVD prevention beyond statin therapy, IPE clinical trials, IPE cost-effectiveness analyses, and proposed pleiotropic (non-lipid) mechanisms of action of EPA, as well as other relevant clinical considerations. See Figure 1 for the graphical abstract.[Figure: see text].
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Affiliation(s)
| | - Viet Le
- Intermountain Medical Center , Murray, UT, USA
- Principle PA Faculty, Rocky Mountain University of Health Professions , Provo, UT, USA
| | - John R Nelson
- California Cardiovascular Institute , Fresno, CA, USA
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17
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Lakshmanan S, Budoff MJ. The Evolving Role of Omega 3 Fatty Acids in Cardiovascular Disease: Is Icosapent Ethyl the Answer? Heart Int 2021; 15:7-13. [DOI: 10.17925/hi.2021.15.1.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 02/18/2021] [Indexed: 11/24/2022] Open
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18
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Watanabe Y, Tatsuno I. Omega-3 polyunsaturated fatty acids focusing on eicosapentaenoic acid and docosahexaenoic acid in the prevention of cardiovascular diseases: a review of the state-of-the-art. Expert Rev Clin Pharmacol 2020; 14:79-93. [PMID: 33306922 DOI: 10.1080/17512433.2021.1863784] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION : An epidemiological study of Greenlandic Inuit suggested the importance of omega-3 polyunsaturated fatty acids (PUFAs) in preventing ischemic heart disease. After this landmark study, large-scale epidemiological studies have examined the benefits of omega-3 PUFAs in the prevention of cardiovascular diseases. AREAS COVERED : This article reviews studies on omega-3 PUFAs, and identifies issues relevant to cardiovascular risk. EXPERT OPINION : Recent studies have focused on the anti-inflammatory effects of omega-3 PUFAs and specialized pro-resolving mediators. High-purity eicosapentaenoic acid (EPA) ethyl ester and EPA/docosahexaenoic acid (DHA) preparations have been developed primarily for the treatment of hypertriglyceridemia. Various trials on the cardiovascular protective effects of omega-3 PUFAs have been reported, but the results have not been consistent. Some issues of the trials have been suggested, such as using low-dose omega-3 PUFAs and not including hypertriglyceridemia in subject selection criteria. REDUCE-IT study that used a high dose of high-purity EPA preparation showed a relative reduction in cardiovascular events, but, the STRENGTH study that used a high dose of EPA/DHA preparation did not support this benefit. This article reviews the roles of omega-3 PUFAs in cardiovascular diseases, including progress in understanding the molecular mechanisms and recent large-scale clinical trials.
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Affiliation(s)
- Yasuhiro Watanabe
- Center for Diabetes, Metabolism and Endocrinology, Toho University Sakura Medical Center , Chiba, Japan
| | - Ichiro Tatsuno
- Center for Diabetes, Metabolism and Endocrinology, Toho University Sakura Medical Center , Chiba, Japan
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Fatty Acids and Cardiovascular Risk. Evidence, Lack of Evidence, and Diligence. Nutrients 2020; 12:nu12123782. [PMID: 33317164 PMCID: PMC7764656 DOI: 10.3390/nu12123782] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/05/2020] [Accepted: 12/08/2020] [Indexed: 12/11/2022] Open
Abstract
One of the most controversial areas of nutrition research relates to fats, particularly essential fatty acids, in the context of cardiovascular disease risk. A critical feature of dietary fatty acids is that they incorporate into the plasma membrane, modifying fluidity and key physiological functions. Importantly, they can reshape the bioavailability of eicosanoids and other lipid mediators, which direct cellular responses to external stimuli, such as inflammation and chronic stress conditions. This paper provides an overview of the most recent evidence, as well as historical controversies, linking fat consumption with human health and disease. We underscore current pitfalls in the area of fatty acid research and critically frame fatty acid intake in the larger context of diet and behavior. We conclude that fundamental research on fatty acids and lipids is appropriate in certain areas, but the rigor and reproducibility are lacking in others. The pros and cons are highlighted throughout the review, seeking to guide future research on the important area of nutrition, fat intake, and cardiovascular disease risk.
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20
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Claessen BE, Guedeney P, Gibson CM, Angiolillo DJ, Cao D, Lepor N, Mehran R. Lipid Management in Patients Presenting With Acute Coronary Syndromes: A Review. J Am Heart Assoc 2020; 9:e018897. [PMID: 33289416 PMCID: PMC7955383 DOI: 10.1161/jaha.120.018897] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Despite many improvements in its prevention and management, acute coronary syndrome (ACS) remains a major cause of morbidity and mortality in the developed world. Lipid management is an important part of secondary prevention after ACS, but many patients currently remain undertreated and do not attain guideline‐recommended levels of low‐density lipoprotein cholesterol reduction. This review details the current state of evidence on lipid management in patients presenting with ACS, provides directions for identification of patients who may benefit from early escalation of lipid‐lowering therapy, and discusses novel lipid‐lowering medication that is currently under investigation in clinical trials. Moreover, a treatment algorithm aimed at attaining guideline‐recommended low‐density lipoprotein cholesterol levels is proposed. Despite important advances in the initial treatment and secondary prevention of ACS, ≈20% of ACS survivors experience a subsequent ischemic cardiovascular event within 24 months, and 5‐year mortality ranges from 19% to 22%. Knowledge of the current state of evidence‐based lipid management after ACS is of paramount importance to improve outcomes after ACS.
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Affiliation(s)
- Bimmer E Claessen
- The Zena and Michael A. Wiener Cardiovascular Institute Icahn School of Medicine at Mount Sinai New York NY.,Noordwest Ziekenhuisgroep Alkmaar the Netherlands
| | - Paul Guedeney
- The Zena and Michael A. Wiener Cardiovascular Institute Icahn School of Medicine at Mount Sinai New York NY.,ACTION Study Group Institut National de la Santé et de la Recherche Médicale Unité Mixte de Recherche Scientifique_1166 Cardiology Institute Pitié Salpêtrière Hospital ParisSorbonne University Paris France
| | | | | | - Davide Cao
- The Zena and Michael A. Wiener Cardiovascular Institute Icahn School of Medicine at Mount Sinai New York NY
| | - Norman Lepor
- Cedars-Sinai Heart InstituteGeffen School of Medicine-University of Califonia - Los Angeles Los Angeles CA
| | - Roxana Mehran
- The Zena and Michael A. Wiener Cardiovascular Institute Icahn School of Medicine at Mount Sinai New York NY
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21
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Chatterjee S, Hajra A, Bandyopadhyay D, Ghosh RK, Deedwania PC. Defining the Role of Icosapent Ethyl in Clinical Practice. Am J Cardiovasc Drugs 2020; 20:517-524. [PMID: 32157567 DOI: 10.1007/s40256-020-00402-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The health benefit of fish oil, i.e. omega-3 fatty acids (ω-3 FA) has a long history of debate. While there are a number of medications to reduce serum triglyceride levels, none have shown unanimous cardiovascular (CV) benefits. The most recent Reduction of Cardiovascular Events with Icosapent Ethyl-Intervention Trial (REDUCE-IT) assessing the CV outcome of one highly purified prescription ω-3 FA has certainly rejuvenated the debate. While this trial has been regarded as one of the most important landmark trials in preventive cardiology, the tolerability issue in a very high dose (4 g/day, as administered in the trial) is still a matter of concern. This article summarizes the current status and future perspective of icosapent ethyl in clinical practice in light of REDUCE-IT.
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22
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Differential Effect of Four-Week Feeding of Different Dietary Fats on the Accumulation of Fat and the Cholesterol and Triglyceride Contents in the Different Fat Depots. Nutrients 2020; 12:nu12113241. [PMID: 33113945 PMCID: PMC7690704 DOI: 10.3390/nu12113241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/12/2020] [Accepted: 10/20/2020] [Indexed: 12/14/2022] Open
Abstract
The aim of the present study was to determine the effects of feeding of a high-fat diet containing different types of lipids for four weeks on the cholesterol and triglyceride contents of different fat depots and on body temperature in rats. Four groups of adult rats were fed 10% fat, containing either beef tallow, safflower oil, or fish oil, respectively, as well as a normal rodent diet with 4% fat, for four weeks. The rats on normal rodent diet consumed significantly more food and water than the rats in the other three groups. Rectal temperature increased only after four-week feeding with safflower oil fat. Increased fat deposition and adipocyte size were observed in rats fed safflower oil and beef tallow. In all fat pads of safflower oil-fed rats, cholesterol content was significantly higher than the other three groups. Feeding of beef tallow increased triglyceride depot without increasing cholesterol content. The rats fed fish oil had significantly less triglyceride and cholesterol deposition in adipose tissues than the rats fed safflower oil or beef tallow. These results clearly demonstrated the differences in fat deposition, adipocyte size and number, triglyceride and cholesterol accumulation in fat cells are dependent on the dietary lipid composition.
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23
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Lakshmanan S, Shekar C, Kinninger A, Dahal S, Onuegbu A, Cai AN, Hamal S, Birudaraju D, Roy SK, Nelson JR, Budoff MJ, Bhatt DL. Comparison of mineral oil and non-mineral oil placebo on coronary plaque progression by coronary computed tomography angiography. Cardiovasc Res 2020; 116:479-482. [PMID: 31825484 PMCID: PMC7031703 DOI: 10.1093/cvr/cvz329] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 12/09/2019] [Indexed: 02/07/2023] Open
Affiliation(s)
- Suvasini Lakshmanan
- Department of Cardiology, Lundquist Institute for Biomedical Innovation and Research at Harbor UCLA Medical Center, 1124 West Carson Street Torrance, CA 90502, USA
| | - Chandana Shekar
- Department of Cardiology, University of Arizona College of Medicine, Phoenix, AZ, USA
| | - April Kinninger
- Department of Cardiology, Lundquist Institute for Biomedical Innovation and Research at Harbor UCLA Medical Center, 1124 West Carson Street Torrance, CA 90502, USA
| | - Suraj Dahal
- Department of Cardiology, Lundquist Institute for Biomedical Innovation and Research at Harbor UCLA Medical Center, 1124 West Carson Street Torrance, CA 90502, USA
| | - Afiachukwu Onuegbu
- Department of Cardiology, Lundquist Institute for Biomedical Innovation and Research at Harbor UCLA Medical Center, 1124 West Carson Street Torrance, CA 90502, USA
| | - Andrew N Cai
- Department of Cardiology, Lundquist Institute for Biomedical Innovation and Research at Harbor UCLA Medical Center, 1124 West Carson Street Torrance, CA 90502, USA
| | - Sajad Hamal
- Department of Cardiology, Lundquist Institute for Biomedical Innovation and Research at Harbor UCLA Medical Center, 1124 West Carson Street Torrance, CA 90502, USA
| | - Divya Birudaraju
- Department of Cardiology, Lundquist Institute for Biomedical Innovation and Research at Harbor UCLA Medical Center, 1124 West Carson Street Torrance, CA 90502, USA
| | - Sion K Roy
- Department of Cardiology, Lundquist Institute for Biomedical Innovation and Research at Harbor UCLA Medical Center, 1124 West Carson Street Torrance, CA 90502, USA
| | - John R Nelson
- Department of Cardiology, California Cardiovascular Institute, Fresno, CA, USA
| | - Matthew J Budoff
- Department of Cardiology, Lundquist Institute for Biomedical Innovation and Research at Harbor UCLA Medical Center, 1124 West Carson Street Torrance, CA 90502, USA
| | - Deepak L Bhatt
- Department of Medicine, Brigham and Women's Hospital Heart & Vascular Center, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
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High levels of eicosapentaenoic acid are associated with lower pericoronary adipose tissue attenuation as measured by coronary CTA. Atherosclerosis 2020; 316:73-78. [PMID: 33129586 DOI: 10.1016/j.atherosclerosis.2020.10.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 09/28/2020] [Accepted: 10/06/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND AND AIMS Higher pericoronary adipose tissue (PCAT) attenuation, a novel marker of inflammation in coronary CT angiography (CTA), has been shown to indicate increased cardiac mortality. Supplementation of eicosapentaenoic acid (EPA) has been shown to decrease cardiovascular death. Whether blood levels of n-3 fatty acids are associated with differences in PCAT attenuation is unknown. METHODS This is a cross-sectional analysis including 64 symptomatic patients who underwent coronary CTA. PCAT attenuation was measured in Hounsfield Units (HU) around the proximal 40 mm of the right coronary artery using semi-automated software. Erythrocyte membrane fatty acid composition was analyzed using gas chromatography. Individual fatty acids were expressed as a percentage of total identified fatty acids. RESULTS The patient cohort was divided into two groups using the median PCAT attenuation of -78.1 HU (each n = 32). No differences were seen in age, sex, BMI or traditional cardiovascular risk factors (CVRF) between groups (all p > 0.05). In univariable analysis, significantly higher values of EPA (1.00% [0.78; 1.26] vs. 0.78% [0.63; 0.99]; p = 0.02) were seen in patients with lower PCAT attenuation. All other fatty acids showed no differences (all p > 0.05). Moreover, a significant negative correlation was seen between PCAT attenuation and EPA (CC: 0.38; p = 0.002). In multivariable analysis, an inverse association of EPA with PCAT attenuation existed (ß = -0.31, p = 0.017), independent of age, gender, BMI and number of CVRF (all p > 0.1). CONCLUSIONS High levels of EPA are associated with lower PCAT attenuation on coronary CTA. This may indicate a different composition of pericoronary adipose tissue, potentially caused by a lower degree of coronary inflammation.
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Zambon A, Pirillo A, Zambon S, Norata GD, Catapano AL. Omega n-3 Supplementation: Exploring the Cardiovascular Benefits Beyond Lipoprotein Reduction. Curr Atheroscler Rep 2020; 22:74. [PMID: 33009961 DOI: 10.1007/s11883-020-00893-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2020] [Indexed: 12/18/2022]
Abstract
PURPOSE OF REVIEW Hypertriglyceridaemia is a highly prevalent disorder worldwide. Genetic and Mendelian randomization studies have suggested that triglyceride (TG)-rich lipoproteins are causal risk factors for coronary heart disease and contribute to the residual cardiovascular risk observed in patients optimally treated with statins. However, clinical trials failed to show cardiovascular benefits of TG-lowering; in this context, trials with omega-3 fatty acids provided contrasting results. Few trials have tested the supplementation of EPA alone rather than the combination of EPA + DHA. The JELIS study showed that EPA 1.8 g/day significantly reduced CV events in hypercholesterolaemic patients given statins, an effect that was independent on lipid reduction. RECENT FINDINGS The REDUCE-IT trial showed that high-dose (4 g/day) EPA significantly reduces the incidence of major cardiovascular events compared with placebo in patients with elevated TG levels. The clinical benefit was higher than expected by the reduction of TG-rich lipoprotein levels. Recent data support the efficacy of high-dose EPA supplementation on a background of optimal LDL-C-lowering therapy as a key approach to achieve a further and significant reduction of CV events in very-high CV risk patients with persistent hypertriglyceridaemia. The effect on lipids does not appear to fully explain the CV benefit, and additional mechanisms of action of EPA likely contribute to the cardiovascular protection, including the reduction of inflammation and platelet aggregation. Current guidelines recommend using high-dose EPA in combination with a statin in high/very-high CV risk patients with mild-to-moderate elevation of plasma TG to reduce the residual CV risk.
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Affiliation(s)
- Alberto Zambon
- Department of Medicine - DIMED, University of Padua, Via Giustiniani, 2, 35128, Padua, Italy.
- IRCCS MultiMedica, Sesto S. Giovanni, Milan, Italy.
| | - Angela Pirillo
- IRCCS MultiMedica, Sesto S. Giovanni, Milan, Italy
- Center for the Study of Atherosclerosis, E. Bassini Hospital, Cinisello Balsamo, Milan, Italy
| | - Sabina Zambon
- Department of Medicine - DIMED, University of Padua, Via Giustiniani, 2, 35128, Padua, Italy
| | - Giuseppe D Norata
- Center for the Study of Atherosclerosis, E. Bassini Hospital, Cinisello Balsamo, Milan, Italy
- Department of Pharmacological and Biomolecular Sciences, University of Milan and IRCCS Multimedica, Via Balzaretti, 9, 20133, Milan, Italy
| | - Alberico L Catapano
- IRCCS MultiMedica, Sesto S. Giovanni, Milan, Italy.
- Department of Pharmacological and Biomolecular Sciences, University of Milan and IRCCS Multimedica, Via Balzaretti, 9, 20133, Milan, Italy.
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Olshansky B, Chung MK, Budoff MJ, Philip S, Jiao L, Doyle, Jr. RT, Copland C, Giaquinto A, Juliano RA, Bhatt DL. Mineral oil: safety and use as placebo in REDUCE-IT and other clinical studies. Eur Heart J Suppl 2020; 22:J34-J48. [PMID: 33061866 PMCID: PMC7537802 DOI: 10.1093/eurheartj/suaa117] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mineral oil is often used as a clinical trial placebo. Pharmaceutical-grade mineral oil consists of a mixture of saturated hydrocarbons, with a purity and chemical structure that differs substantially from food-grade or technical-/industrial-grade mineral oils. Interest in mineral oil was piqued by suggestions that a portion of the substantially positive results of the Reduction of Cardiovascular Events with Icosapent Ethyl-Intervention Trial (REDUCE-IT) might be attributable to the theoretical negative effects of mineral oil rather than being due to the clinical benefits of icosapent ethyl. The objective of this review was to explore possible mineral oil safety and efficacy effects and contextualize these findings in light of the REDUCE-IT conclusions. A literature search identified studies employing mineral oil placebos. Eighty studies were identified and relevant data extracted. Adverse events associated with mineral oil were generally gastrointestinal and consistent with use as a lubricant laxative. Changes in triglycerides, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, high-sensitivity C-reactive protein, and other biomarkers were inconsistent and generally not statistically significant, or clinically meaningful with mineral oil, as were changes in blood pressure. There was no consistent evidence that mineral oil in the amounts used in the REDUCE-IT or Effect of Vascepa on Progression of Coronary Atherosclerosis in Patients With Elevated Triglycerides on Statin Therapy (EVAPORATE) trials affects absorption of essential nutrients or drugs, including statins. These results were then considered alongside publicly available data from REDUCE-IT. Based on available evidence, mineral oil does not appear to impact medication absorption or efficacy, or related clinical outcomes, and, therefore, does not meaningfully affect study conclusions when used as a placebo at the quantities used in clinical trials.
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Affiliation(s)
- Brian Olshansky
- Department of Internal Medicine, University of Iowa, 200 Hawkins Drive, Iowa City, IA 52242, USA
| | - Mina K Chung
- Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, OH, USA
| | | | | | - Lixia Jiao
- Amarin Pharma, Inc, Bridgewater, NJ, USA
| | | | | | | | | | - Deepak L Bhatt
- Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
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Toth PP, Shah PK, Lepor NE. Targeting hypertriglyceridemia to mitigate cardiovascular risk: A review. Am J Prev Cardiol 2020; 3:100086. [PMID: 32929418 PMCID: PMC7481317 DOI: 10.1016/j.ajpc.2020.100086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/21/2020] [Accepted: 08/25/2020] [Indexed: 12/12/2022] Open
Abstract
A causal relationship between elevated triglycerides and cardiovascular disease is controversial, as trials of triglyceride-lowering treatments have not shown significant impact on cardiovascular outcomes. However, hypertriglyceridemia is associated with atherogenesis and risk for acute cardiovascular events that persist despite optimal statin treatment. Although most trials of triglyceride-lowering treatments have been negative, in trials of niacin and fibrates, subgroup analyses in patients with higher baseline triglycerides and lower HDL-C levels suggest reduced incidence of cardiovascular endpoints. The REDUCE-IT trial demonstrated that addition of purified prescription eicosapentaenoic acid (icosapent ethyl) 4 g/day in high-risk patients with triglyceride levels 135–499 mg/dL and optimized statin treatment significantly reduced cardiovascular events versus placebo (hazard ratio 0.75; 95% confidence interval 0.68–0.83; P < 0.001). Benefit was seen regardless of baseline and on-treatment triglyceride levels, suggesting that other effects of eicosapentaenoic acid besides triglyceride reduction may have played a role. Hypertriglyceridemia is associated with atherogenesis & cardiovascular event risk. Most triglyceride treatment cardiovascular outcomes trials have been negative. However, icosapent ethyl significantly reduced cardiovascular events in REDUCE-IT. Effects of icosapent ethyl beyond triglyceride reduction may play a role.
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Affiliation(s)
- Peter P Toth
- CGH Medical Center, Sterling, IL, USA.,Cicarrone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Prediman K Shah
- Smidt Heart Institute at Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Norman E Lepor
- Smidt Heart Institute at Cedars-Sinai Medical Center, Los Angeles, CA, USA
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Effect of vessel wall segmentation on volumetric and radiomic parameters of coronary plaques with adverse characteristics. J Cardiovasc Comput Tomogr 2020; 15:137-145. [PMID: 32868246 DOI: 10.1016/j.jcct.2020.08.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/07/2020] [Accepted: 08/03/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Quantitative coronary plaque parameters are increasingly being utilized as surrogate endpoints of pharmaceutical trials. However, little is known whether differences in segmentation significantly alter parameter values. METHODS Overall, 100 coronary plaques with adverse imaging characteristics were segmented automatically, by two experts (R1-R2) and three nonexperts (R3-R5). Low attenuation noncalcified (LANCP), noncalcified and calcified plaque volume were calculated and 4310 radiomic features were extracted. Intraclass correlation coefficient (ICC) values were calculated between the segmentations. RESULTS ICC values between expert readers were 0.84 [CI: 0.77-0.89] for total; 0.83 [CI: 0.76-0.88] for noncalcified; 0.96 [CI: 0.94-0.98] for calcified and 0.65 [CI: 0.51-0.75] for LANCP volumes. Comparing nonexperts' and experts' results, ICC ranged between 0.64 and 0.90 for total; 0.63-0.91 for noncalcified; 0.86-0.96 for calcified and 0.34-0.84 for LANCP volume. All readers (R1-R5) showed poor agreement with automatic segmentation (range: 0.00-0.27), except for calcified plaque volumes (range: 0.73-0.88). Regarding radiomic features, expert readers (R1-R2) achieved good reproducibility (ICC>0.80) in 88.6% (39/44) of first-order, 62.0% (424/684) of gray level co-occurrence matrix (GLCM), 75.8% (50/66) of gray level run length matrix (GLRLM) and 19.8% (696/3516) of geometrical parameters. Between experts and nonexperts, ICC ranged between: 70.5%-86.4% for first-order, 31.0%-58.3% for GLCM, 24.2%-78.8% for GLRLM and 6.2%-21.1% for geometrical features, while between all readers and automatic segmentation ICC ranged between: 25.0%-38.6%; 0.0%-0.0%; 0.0%-3.0% and 1.1%-1.4%, respectively. CONCLUSIONS Even among experts there is a considerable amount of disagreement in LANCP volumes. Nevertheless, expert readers have the best agreement which currently cannot be replaced with nonexperts' or automatic segmentation.
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Saito Y, Nakamura K, Ito H. Effects of Eicosapentaenoic Acid on Arterial Calcification. Int J Mol Sci 2020; 21:ijms21155455. [PMID: 32751754 PMCID: PMC7432365 DOI: 10.3390/ijms21155455] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/27/2020] [Accepted: 07/27/2020] [Indexed: 12/26/2022] Open
Abstract
Arterial calcification is a hallmark of advanced atherosclerosis and predicts cardiovascular events. However, there is no clinically accepted therapy that prevents progression of arterial calcification. HMG-CoA reductase inhibitors, statins, lower low-density lipoprotein-cholesterol and reduce cardiovascular events, but coronary artery calcification is actually promoted by statins. The addition of eicosapentaenoic acid (EPA) to statins further reduced cardiovascular events in clinical trials, JELIS and REDUCE-IT. Additionally, we found that EPA significantly suppressed arterial calcification in vitro and in vivo via suppression of inflammatory responses, oxidative stress and Wnt signaling. However, so far there is a lack of evidence showing the effect of EPA on arterial calcification in a clinical situation. We reviewed the molecular mechanisms of the inhibitory effect of EPA on arterial calcification and the results of some clinical trials.
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Budoff MJ, Muhlestein JB, Bhatt DL, Le Pa VT, May HT, Shaikh K, Shekar C, Kinninger A, Lakshmanan S, Roy SK, Tayek J, Nelson JR. Effect of icosapent ethyl on progression of coronary atherosclerosis in patients with elevated triglycerides on statin therapy: a prospective, placebo-controlled randomized trial (EVAPORATE): interim results. Cardiovasc Res 2020; 117:1070-1077. [PMID: 32609331 DOI: 10.1093/cvr/cvaa184] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/23/2020] [Indexed: 12/30/2022] Open
Abstract
AIMS Though statin therapy is known to slow coronary atherosclerosis progression and reduce cardiovascular (CV) events, significant CV risk still remains. In the REDUCE-IT study, icosapent ethyl (IPE) added to statin therapy reduced initial CV events by 25% and total CV events by 30%, but its effects on coronary atherosclerosis progression have not yet been fully investigated. Therefore, this study is to determine whether IPE 4 g/day will result in a greater change from baseline in plaque volume measured by serial multidetector computed tomography than placebo in statin-treated patients. METHODS AND RESULTS EVAPORATE is a randomized, double-blind, placebo-controlled trial. Patients had to have coronary atherosclerosis by coronary computed tomographic angiography (CCTA) (≥1 angiographic stenoses with ≥20% narrowing), on stable statin therapy with low-density lipoprotein cholesterol levels 40-115 mg/dL, and persistently high triglyceride levels (135-499 mg/dL). Patients underwent an interim scan at 9 months and were followed for an additional 9 months with CCTA at 0, 9, and 18 months. Here, we present the protocol-specified interim efficacy results. A total of 80 patients were enrolled, with 67 completing the 9-month visit and having interpretable CCTA at baseline and at 9 months (age = 57 ± 6 years, male = 36, 63%). At the 9-month interim analysis, there was no significant change in low attenuation plaque (LAP) between active and placebo groups (74% vs. 94%, P = 0.469). However, there was slowing of total non-calcified plaque (sum of LAP, fibrofatty, and fibrous plaque) (35% vs. 43%, P = 0.010), total plaque (non-calcified + calcified plaque) (15% vs. 26%, P = 0.0004), fibrous plaque (17% vs. 40%, P = 0.011), and calcified plaque (-1% vs. 9%, P = 0.001), after adjustment by baseline plaque, age, sex, diabetes, baseline triglyceride levels, and statin use. CONCLUSION EVAPORATE is the first study using CCTA to evaluate the effects of IPE as an adjunct to statin therapy on atherosclerotic plaque characteristics in a high-risk CV population with persistently high triglyceride levels. It provides important mechanistic data in regards to the reduction in CV events in the REDUCE-IT clinical trial. CLINICALTRIALS. GOVIDENTIFIER NCT029226027.
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Affiliation(s)
- Matthew J Budoff
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, CDCRC, Torrance, CA 90502, USA
| | - Joseph B Muhlestein
- Department of Internal Medicine, Intermountain Heart Institute, Intermountain Medical Center, Salt Lake City, UT, USA
| | - Deepak L Bhatt
- Department of Internal Medicine, Brigham and Women's Hospital Heart & Vascular Center and Harvard Medical School, Boston, MA, USA
| | - Viet T Le Pa
- Department of Internal Medicine, Intermountain Heart Institute, Intermountain Medical Center, Salt Lake City, UT, USA.,Department of Internal Medicine, Rocky Mountain University of Health Profession, Provo, UT, USA
| | - Heidi T May
- Department of Internal Medicine, Intermountain Heart Institute, Intermountain Medical Center, Salt Lake City, UT, USA
| | - Kashif Shaikh
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, CDCRC, Torrance, CA 90502, USA
| | - Chandana Shekar
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, CDCRC, Torrance, CA 90502, USA
| | - April Kinninger
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, CDCRC, Torrance, CA 90502, USA
| | - Suvasini Lakshmanan
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, CDCRC, Torrance, CA 90502, USA
| | - Sion K Roy
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, CDCRC, Torrance, CA 90502, USA
| | - John Tayek
- Department of Medicine, Lundquist Institute at Harbor-UCLA Medical Center, 1124 W Carson Street, CDCRC, Torrance, CA 90502, USA
| | - John R Nelson
- Department of Internal Medicine, California Cardiovascular Institute, Fresno, CA, USA
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Aradine E, Hou Y, Cronin CA, Chaturvedi S. Current Status of Dyslipidemia Treatment for Stroke Prevention. Curr Neurol Neurosci Rep 2020; 20:31. [DOI: 10.1007/s11910-020-01052-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lakshmanan S, Shekar C, Kinninger A, Dahal S, Onuegbu A, Cai AN, Hamal S, Birudaraju D, Cherukuri L, Flores F, Dailing C, Roy SK, Bhatt DL, Nelson JR, Budoff MJ. Association of high-density lipoprotein levels with baseline coronary plaque volumes by coronary CTA in the EVAPORATE trial. Atherosclerosis 2020; 305:34-41. [PMID: 32615321 DOI: 10.1016/j.atherosclerosis.2020.05.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 04/24/2020] [Accepted: 05/20/2020] [Indexed: 01/18/2023]
Abstract
BACKGROUND AND AIMS Dyslipidemia with elevated triglycerides (TGL) and low high-density lipoprotein cholesterol (HDL-C) predicts residual cardiovascular risk, despite goal LDL-C levels and optimal statin therapy. Coronary plaque characterization by CCTA can provide mechanistic understanding of coronary artery disease and associated prognosis. The role of HDL-C in the pathogenesis of atherosclerosis is not well understood in statin-treated patients with elevated TGL. We sought to examine the association of HDL-C levels with baseline coronary plaque volumes, namely total plaque (TP) and total non-calcified plaque (TNCP) volumes by CCTA in participants enrolled in the EVAPORATE trial. METHODS We analyzed 80 participants who were enrolled in the trial. Linear regression analysis as a univariate and multivariate model adjusted for significant cardiovascular risk factors was performed to evaluate independent association of HDL-C and baseline coronary plaque volumes. In an exploratory analysis, stratified by sex, we compared the association of serum HDL-C levels with baseline coronary plaque volumes in males and females. RESULTS Mean (SD) age of participants (n = 80) was 57.1 (8.6) years and 43% were male. Median (Inter Quartile Range/IQR) log-TNCP volume was 83.0 (0.1-7.3) mm3 and median (IQR) log-TP volume was 144.8 (0.1-7.1) mm3. After adjustment for relevant clinical covariates including age, gender, BMI, hypertension, diabetes, past smoking and baseline TGL levels, increasing levels of HDL-C remain independently associated with lower baseline log-TNCP volumes (β: 0.043 ± 0.021, p = 0.042) and baseline log-TP volumes (β: 0.046 ± 0.022, p = 0.035) on CCTA. On stratifying by sex in a multivariable regression analysis, HDL-C levels were inversely associated with baseline log-TNCP volumes (β: 0.066 ± 0.026, p = 0.018) and log-TP volumes (β: 0.077 ± 0.025, p = 0.004) in females, but not in males (log-TNCP volumes β: 0.038 ± 0.034, p = 0.282) and log-TP volumes (β: -0.033 ± 0.036, p = 0.364). CONCLUSIONS In a cohort of statin treated patients with known atherosclerosis and residually elevated TGL, there was a significant inverse relationship between HDL-C levels and baseline coronary plaque, TP and TNCP volumes on CCTA. Our findings provide more detailed mechanistic evidence regarding the protective role of HDL-C in coronary atherosclerosis in a high-risk cohort. Further investigation to evaluate the interaction of HDL-C levels and coronary plaque volumes on differential CVD risk in statin-treated patients with elevated TGL levels is warranted.
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Affiliation(s)
- Suvasini Lakshmanan
- Los Angeles Biomedical Research Institute at Harbor UCLA Medical Center, Torrance, CA, USA
| | | | - April Kinninger
- Los Angeles Biomedical Research Institute at Harbor UCLA Medical Center, Torrance, CA, USA
| | - Suraj Dahal
- Los Angeles Biomedical Research Institute at Harbor UCLA Medical Center, Torrance, CA, USA
| | - Afiachukwu Onuegbu
- Los Angeles Biomedical Research Institute at Harbor UCLA Medical Center, Torrance, CA, USA
| | - Andrew N Cai
- Los Angeles Biomedical Research Institute at Harbor UCLA Medical Center, Torrance, CA, USA
| | - Sajad Hamal
- Los Angeles Biomedical Research Institute at Harbor UCLA Medical Center, Torrance, CA, USA
| | - Divya Birudaraju
- Los Angeles Biomedical Research Institute at Harbor UCLA Medical Center, Torrance, CA, USA
| | - Lavanya Cherukuri
- Los Angeles Biomedical Research Institute at Harbor UCLA Medical Center, Torrance, CA, USA
| | - Ferdinand Flores
- Los Angeles Biomedical Research Institute at Harbor UCLA Medical Center, Torrance, CA, USA
| | - Christopher Dailing
- Los Angeles Biomedical Research Institute at Harbor UCLA Medical Center, Torrance, CA, USA
| | - Sion K Roy
- Los Angeles Biomedical Research Institute at Harbor UCLA Medical Center, Torrance, CA, USA
| | - Deepak L Bhatt
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - John R Nelson
- Department of Cardiology, California Cardiovascular Institute, Fresno, CA, USA
| | - Matthew J Budoff
- Los Angeles Biomedical Research Institute at Harbor UCLA Medical Center, Torrance, CA, USA.
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Gupta M, Blumenthal C, Chatterjee S, Bandyopadhyay D, Jain V, Lavie CJ, Virani SS, Ray KK, Aronow WS, Ghosh RK. Novel emerging therapies in atherosclerosis targeting lipid metabolism. Expert Opin Investig Drugs 2020; 29:611-622. [PMID: 32363959 DOI: 10.1080/13543784.2020.1764937] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
INTRODUCTION Recent years have brought significant developments in lipid and atherosclerosis research. Although statins are a cornerstone in hyperlipidemia management, new non-statin therapies have had an impact. The reduction of low-density lipoprotein cholesterol (LDL-C) further translates into the lowering of cardiovascular mortality. Additionally, lipid research has progressed beyond LDL-C reduction and this has brought triglyceride (TG) and other apoprotein-B containing lipids into focus. AREAS COVERED Inclisiran and pemafibrate, with expected approval soon, come under the spotlight. We discuss other therapeutics such as lomitapide, mipomersen, volanesorsen, and evinacumab and newly approved non-statin-based therapies such as ezetimibe, icosapent ethyl (IPE), and bempedoic acid. EXPERT OPINION New options now exist for the prevention of atherosclerosis in patients that are not optimized on statin therapy. Multiple guidelines endorse ezetimibe, PCSK9 inhibitors, bempedoic, and IPE as add-on therapy. Recently approved bempedoic acid/ezetimibe combination might gain popularity among clinicians. Inclisiran and pemafibrate show promise in the reduction of LDL-C and TG, respectively, and results are pending in cardiovascular outcome trials. Combination strategies could improve outcomes, but the challenge will be balancing cost and selecting the correct patient population for each treatment modality to maximize benefit with the fewest medications.
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Affiliation(s)
- Manasvi Gupta
- Department of Internal Medicine, University of Connecticut , Hartford, CT, USA
| | - Colin Blumenthal
- Department of Internal Medicine, Johns Hopkins University School of Medicine , Baltimore, MD, USA
| | | | - Dhrubajyoti Bandyopadhyay
- Department of Internal Medicine, Mount Sinai St Luke's Roosevelt Hospital, Icahn School of Medicine at Mount Sinai , New York, NY, USA
| | - Vardhmaan Jain
- Department of Internal Medicine, Cleveland Clinic , Cleveland, OH, USA
| | - Carl J Lavie
- Ochsner Clinical School, John Ochsner Heart and Vascular Institute, The University of Queensland School of Medicine , New Orleans, LA, USA
| | - Salim S Virani
- Section of Cardiology, Michael E. DeBakey Veterans Affairs Medical Center and Section of Cardiovascular Research, Department of Medicine, Baylor College of Medicine , Houston, TX, USA
| | - Kausik K Ray
- Imperial Centre for Cardiovascular Disease Prevention, London, UK
| | - Wilbert S Aronow
- Department of Cardiology, Westchester Medical Center and New York Medical College , New York, USA
| | - Raktim K Ghosh
- MedStar Heart and Vascular Institute, Union Memorial Hospital , Baltimore, MD, USA
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Abstract
PURPOSE OF REVIEW To discuss the current evidence regarding the relationship between omega-3 fatty acid intake and atherosclerotic cardiovascular disease (ASCVD) risk. RECENT FINDINGS Combined results from randomized controlled trials using low-dosage (≤1.8 g/day of ethyl esters) eicosapentaenoic acid (EPA) or EPA + docosahexaenoic acid (DHA) suggest a small benefit for reducing coronary heart disease risk. The Reduction of Cardiovascular Events with EPA-Intervention Trial (REDUCE-IT) that administered 4 g/day icosapent ethyl (IPE) to individuals on statin at high or very high ASCVD risk with elevated triglycerides demonstrated a 25% relative risk reduction in the composite primary endpoint (cardiovascular death, nonfatal myocardial infarction, nonfatal stroke, coronary revascularization and unstable angina) for IPE vs. placebo, and a lower hazard for all prespecified individual endpoints other than total mortality. Several national organizations have recommended IPE for ASCVD risk reduction in populations aligning with REDUCE-IT; the Food and Drug Administration has approved IPE for ASCVD risk reduction. However, the Outcomes Study to Assess Statin Residual Risk Reduction with Epanova (EPA + DHA carboxylic acids) in High Cardiovascular Risk Patients with Hypertriglyceridemia was recently stopped for futility. SUMMARY At present, the best available evidence for a role of omega-3 fatty acids in ASCVD risk reduction is for 4 g/day of IPE, as an adjunct to statin therapy, for patients with ASCVD or diabetes mellitus and elevated triglycerides.
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Hamal S, Cherukuri L, Shaikh K, Kinninger A, Doshi J, Birudaraju D, Budoff MJ. Effect of semaglutide on coronary atherosclerosis progression in patients with type II diabetes: rationale and design of the semaglutide treatment on coronary progression trial. Coron Artery Dis 2020; 31:306-314. [PMID: 32271261 DOI: 10.1097/mca.0000000000000830] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND Cardiovascular morbidity and mortality are a major burden in patients with type 2 diabetic mellitus. In a landmark study, semaglutide (an injectable glucagon like peptide-1 receptor agonist) has been shown to significantly reduce cardiovascular events, however, the mechanism of benefit is still unknown. The primary hypothesis of our current study is to assess the effect of semaglutide to reduce progression of noncalcified coronary atherosclerotic plaque volume as measured by serial coronary CTA as compared to placebo in persons with diabetes over 1 year. METHODS One hundred forty patients will be enrolled after signing informed consent and followed up for 12 months and with a phone call 30 days after medical discontinuation. All the participants will undergo coronary artery calcium scoring and coronary computed tomography angiography at our center at baseline and 12 months. Eligible participants will be randomly assigned to semaglutide 2 mg/1.5 ml (1.34 mg/ml) prefilled pen for subcutaneous (SC) injection or placebo 1.5 ml, pen-injector for SC injection in a 1:1 fashion as add-on to their standard of care. RESULTS As of July 2019, the study was approximately 30% enrolled with an estimated enrollment completion by first quarter of 2020 and end of study by first quarter 2021. Thirty patients were enrolled as of 23 July 2019. Preliminary data of demographics and clinical characteristics were summarized. CONCLUSION Our current study will provide important imaging-derived data that may add relevance to the clinically derived outcomes from liraglutide effect and action in diabetes: evaluation of cardiovascular outcome results and semaglutide and cardiovascular outcomes in patients with type 2 diabetic mellitus 6 trials.
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Affiliation(s)
- Sajad Hamal
- Department of Cardiology, Lundquist Institute for Biomedical Innovation at Harbor UCLA Medical Center, Torrance, California, USA
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Abstract
PURPOSE OF REVIEW Residual risk for atherosclerotic cardiovascular disease (ASCVD) persists even among patients with optimal low-density lipoprotein cholesterol (LDL-C) levels. Randomized trials attempting to modulate other lipids beyond LDL-C have failed to demonstrate significant reductions in ischemic events. RECENT FINDINGS Mounting evidence suggests that triglyceride elevation is an independent risk factor for ASCVD. Though trials of triglyceride-lowering therapy in the statin era have failed to provide protection from ASCVD events, subgroup analyses have revealed that those with the highest triglycerides at time of enrollment appeared to receive the greatest clinical benefit. REDUCE-IT was a trial that enrolled patients with high triglycerides despite having goal LDL-C levels on statin therapy. Treatment with icosapent ethyl, a highly purified omega-3 fatty acid (OM3FA), eicosapentaenoic acid ethyl ester, provided a 25% relative risk reduction for the primary composite cardiovascular endpoint (hazard ratio 0.75, 95% CI 0.68--0.83; P = 0.00000001), as well as a 30% relative risk reduction in total ischemic events (P = 0.00000000036). SUMMARY Icosapent ethyl was rigorously shown to decrease residual risk for cardiovascular events, though the benefits seen were likely because of mechanisms beyond mere triglyceride lowering. Clinical application of icosapent ethyl in this cohort of patients with residual risk is urgently needed.
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Mosca L, Navar AM, Wenger NK. Reducing Cardiovascular Disease Risk in Women Beyond Statin Therapy: New Insights 2020. J Womens Health (Larchmt) 2020; 29:1091-1100. [PMID: 32297837 DOI: 10.1089/jwh.2019.8189] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Management of residual and persistent cardiovascular disease (CVD) risk among statin-treated individuals has emerged as an important preventive strategy. The purpose of this article is to review the unique landscape of CVD in women and relevant prior prevention trials, and to discuss how the recent results of the Reduction of Cardiovascular Events with Icosapent Ethyl-Intervention Trial (REDUCE-IT) might apply to the contemporary management of CVD risk among statin-treated women. Women have unique risk factors that may impact CVD and its prevention. Historically, women have been underrepresented in CVD trials, posing a challenge to development of clinical recommendations for women. Low-density lipoprotein cholesterol-targeting treatments have demonstrated CVD risk reduction, with comparable effects in both sexes. In contrast, triglyceride-lowering treatments (niacin, fenofibrate, and omega-3 fatty acids) have reported mixed findings for CVD risk reduction. Recent clinical trials of combination omega-3 fatty acids (docosahexaenoic acid/eicosapentaenoic acid [EPA]) have not found significant CVD risk reduction. The recently published REDUCE-IT study found that icosapent ethyl, an EPA-only omega-3 fatty acid, in combination with statins, significantly reduced CVD events in high-risk patients. The icosapent ethyl group had a significantly lower occurrence of the primary composite CVD endpoint (17.2%) than the placebo group (22.0%; hazard ratio 0.75; 95% confidence interval 0.68-0.83; p < 0.001). CVD risk reduction with icosapent ethyl treatment was comparable between women and men (p for interaction, 0.33). Data from REDUCE-IT suggest women benefit similarly to men with respect to icosapent ethyl, a novel therapy for prevention of CVD.
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Affiliation(s)
- Lori Mosca
- Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Ann Marie Navar
- Department of Medicine, Division of Cardiology, Duke Clinical Research Institute, Durham, North Carolina, USA
| | - Nanette Kass Wenger
- Department of Cardiology, Emory University School of Medicine; Emory Heart and Vascular Center; Emory Women's Heart Center, Atlanta, Georgia, USA
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Mason RP, Libby P, Bhatt DL. Emerging Mechanisms of Cardiovascular Protection for the Omega-3 Fatty Acid Eicosapentaenoic Acid. Arterioscler Thromb Vasc Biol 2020; 40:1135-1147. [PMID: 32212849 PMCID: PMC7176343 DOI: 10.1161/atvbaha.119.313286] [Citation(s) in RCA: 221] [Impact Index Per Article: 55.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Patients with well-controlled LDL (low-density lipoprotein) levels still have residual cardiovascular risk associated with elevated triglycerides. Epidemiological studies have shown that elevated fasting triglyceride levels associate independently with incident cardiovascular events, and abundant recent human genetic data support the causality of TGRLs (triglyceride-rich lipoproteins) in atherothrombosis. Omega-3 fatty acids, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), lower blood triglyceride concentrations but likely exert additional atheroprotective properties at higher doses. Omega-3 fatty acids modulate T-cell differentiation and give rise to various prostaglandins and specialized proresolving lipid mediators that promote resolution of tissue injury and inflammation. The REDUCE-IT (Reduction of Cardiovascular Events with Icosapent Ethyl–Intervention Trial) with an EPA-only formulation lowered a composite of cardiovascular events by 25% in patients with established cardiovascular disease or diabetes mellitus and other cardiovascular risk factors. This clinical benefit likely arises from multiple molecular mechanisms discussed in this review. Indeed, human plaques readily incorporate EPA, which may render them less likely to trigger clinical events. EPA and DHA differ in their effects on membrane structure, rates of lipid oxidation, inflammatory biomarkers, and endothelial function as well as tissue distributions. Trials that have evaluated DHA-containing high-dose omega-3 fatty acids have thus far not shown the benefits of EPA alone demonstrated in REDUCE-IT. This review will consider the mechanistic evidence that helps to understand the potential mechanisms of benefit of EPA.
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Affiliation(s)
- R Preston Mason
- From the Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (R.P.M., P.L., D.L.B.).,Elucida Research LLC, Beverly, MA (R.P.M.)
| | - Peter Libby
- From the Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (R.P.M., P.L., D.L.B.)
| | - Deepak L Bhatt
- From the Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (R.P.M., P.L., D.L.B.)
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40
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Nelson AJ, Nicholls SJ. Translating evidence from clinical trials of omega-3 fatty acids to clinical practice. Future Cardiol 2020; 16:343-350. [PMID: 32180456 DOI: 10.2217/fca-2019-0031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The REDUCE-IT (Reduction of Cardiovascular Events with Icosapent Ethyl-Intervention Trial) study recently demonstrated that administration of high doses of omega-3 fatty acids confers cardiovascular benefit in high-risk patients with the modest hypertriglyceridemia. This provided optimism for a therapeutic area that has challenged the field of cardiovascular prevention for 2 decades. However, it raises a number of questions including understanding the mechanism underscoring this benefit, how best to use these therapies and whether similar results will be observed with alternative omega-3 fatty acid preparations. Contemporary clinical trials of omega-3 fatty acids and their attempt to prevent cardiovascular events will be reviewed.
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Affiliation(s)
| | - Stephen J Nicholls
- Monash Cardiovascular Research Centre, Monash University, Melbourne, Victoria, Australia
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Toth PP, Fazio S, Wong ND, Hull M, Nichols GA. Risk of cardiovascular events in patients with hypertriglyceridaemia: A review of real-world evidence. Diabetes Obes Metab 2020; 22:279-289. [PMID: 31742844 PMCID: PMC7065050 DOI: 10.1111/dom.13921] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 11/13/2019] [Accepted: 11/14/2019] [Indexed: 12/11/2022]
Abstract
AIMS To describe the real-world prevalence and consequences of hypertriglyceridaemia. MATERIALS AND METHODS We searched two large patient databases, the National Health and Nutrition Examination Survey (NHANES) database (2007-2014) and the Optum Research Database, as well as electronic medical records from two Kaiser Permanente regions. RESULTS The NHANES data showed that ~26% of US adults, including nearly one-third of statin users, had at least borderline hypertriglyceridaemia (triglycerides [TGs] ≥1.69 mmol/L), and ~40% of adults with diabetes had levels of ≥150 mg/dL despite statin use. The Optum analyses demonstrated that those with TG levels ≥1.69 mmol/L who were on statins had a significantly increased risk of composite initial major cardiovascular (CV) events (hazard ratio [HR] 1.26, 95% confidence interval [CI] 1.19-1.34; P < 0.001 vs. patients with TGs <150 mg/dL). This was accompanied by increased healthcare utilization and direct healthcare costs (HR 1.12, 95% CI 1.08-1.16; P < 0.001). In the analyses of the Kaiser Permanente records, patients with diabetes and TG levels 2.26-5.64 mmol/L had significantly higher adjusted incidence rates of non-fatal myocardial infarction (rate ratio 1.30, 95% CI 1.08-1.58; P = 0.006), non-fatal stroke (rate ratio 1.23; 95% CI 1.01-1.49; P = 0.037) and coronary revascularization (rate ratio 1.21; 95% CI 1.02-1.43; P = 0.027), but not unstable angina (rate ratio 1.33; 95% CI 0.87-2.03; P = 0.185) compared with patients with TG levels <1.69 mmol/L. CONCLUSIONS Real-world analyses suggest that elevated TGs are prevalent and commonly associated with increased CV risk. CV outcomes trials in patients with established hypertriglyceridaemia will clarify whether strategies to reduce TG levels can ameliorate residual CV risk in patients taking statins.
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Affiliation(s)
- Peter P. Toth
- Ciccarone Centre for the Prevention of Cardiovascular DiseaseJohns Hopkins University School of MedicineBaltimoreMarylandUnited States
- CGH Medical CenterSterlingIllinoisUnited States
| | - Sergio Fazio
- Oregon Health and Science UniversityPortlandOregonUnited States
| | - Nathan D. Wong
- University of CaliforniaIrvine School of MedicineIrvineCaliforniaUnited States
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Kalhan A. Therapy and clinical trials. Curr Opin Lipidol 2020; 31:33-34. [PMID: 31876658 DOI: 10.1097/mol.0000000000000657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Atul Kalhan
- Royal Glamorgan Hospital, Llantrisant, Wales, UK
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43
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Larsen LE, Stoekenbroek RM, Kastelein JJP, Holleboom AG. Moving Targets: Recent Advances in Lipid-Lowering Therapies. Arterioscler Thromb Vasc Biol 2020; 39:349-359. [PMID: 30676072 DOI: 10.1161/atvbaha.118.312028] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Statin therapy has delivered tremendous value to society by improving the burden of atherosclerotic cardiovascular disease. Nonetheless, atherosclerotic cardiovascular disease remains the leading cause of death globally. Technological advances such as in the field of genomics have revolutionized drug discovery and development and have revealed novel therapeutic targets to lower low-density lipoprotein cholesterol (LDL-C), as well as other detrimental lipids and lipoproteins. Therapeutic LDL-C lowering prevents atherosclerotic cardiovascular disease with an effect size proportional to absolute LDL-C reductions and time of exposure. This understanding supports the notion that reducing cumulative LDL-C exposure should be a key therapeutic target. PCSK9 (proprotein convertase subtilisin/kexin type 9) inhibiting monoclonal antibodies provides the possibility of reducing LDL-C to very low levels. Novel therapeutic platforms such as RNA inhibition present opportunities to combine robust lipid lowering with infrequent dosing regimens, introducing therapies with vaccine-like properties. The position of lipid-lowering therapies with targets other than LDL-C, such as Lp(a) [lipoprotein(a)], TRL (triglyceride-rich lipoproteins), and remnant cholesterol, will likely be determined by the results of ongoing clinical trials. Current evidence suggests that reducing Lp(a) or TRLs could attenuate atherosclerotic cardiovascular disease risk in specific categories of patients. This review provides an overview of the latest therapeutic developments, focusing on their mechanisms, efficacy, and safety.
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Affiliation(s)
- Lars E Larsen
- From the Department of Vascular Medicine, Amsterdam University Medical Center, The Netherlands
| | - Robert M Stoekenbroek
- From the Department of Vascular Medicine, Amsterdam University Medical Center, The Netherlands
| | - John J P Kastelein
- From the Department of Vascular Medicine, Amsterdam University Medical Center, The Netherlands
| | - Adriaan G Holleboom
- From the Department of Vascular Medicine, Amsterdam University Medical Center, The Netherlands
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Bittner DO, Goeller M, Zopf Y, Achenbach S, Marwan M. Early-onset coronary atherosclerosis in patients with low levels of omega-3 fatty acids. Eur J Clin Nutr 2020; 74:651-656. [DOI: 10.1038/s41430-019-0551-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 12/04/2019] [Accepted: 12/18/2019] [Indexed: 01/07/2023]
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Dahal S, Budoff MJ. Implications of serial coronary computed tomography angiography in the evaluation of coronary plaque progression. Curr Opin Lipidol 2019; 30:446-451. [PMID: 31592788 DOI: 10.1097/mol.0000000000000645] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PURPOSE OF REVIEW The purpose is to review the use of coronary computed tomography (CT) angiography to assess coronary plaque burden/progression and to discuss about recent clinical trials that have utilized this imaging modality to study the effect of new pharmacotherapies on plaque burden/progression. RECENT FINDINGS There are numerous clinical trials that have utilized coronary CT angiography to demonstrate the potential benefits of statins, apixaban, rivaroxaban, aged garlic extract, biologic agents, and omega-3 fatty acids to reduce coronary plaque progression. Coronary CT angiography can identify high-risk plaques and can also quantify total plaque burden, both of which are independent risk factors to predict major adverse cardiac events. SUMMARY Coronary heart disease remains one of the leading cause of mortality in the world. Utilizing coronary CT angiography, it is possible to identify rupture-prone plaques and also to quantify the total plaque burden. New pharmacotherapies that have the potential to reduce plaque progression have been used in clinical trials and these trials have utilized coronary CT angiography to track coronary atheroma progression. In future, we will see frequent utilization of coronary CT angiography to track coronary atheroma.
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Affiliation(s)
- Suraj Dahal
- Department of Internal Medicine, Los Angeles Biomedical Research Institute at Harbor-UCLA, CDCRC, Torrance, California, USA
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Florentin M, Kostapanos MS, Anagnostis P, Liamis G. Recent developments in pharmacotherapy for hypertriglyceridemia: what’s the current state of the art? Expert Opin Pharmacother 2019; 21:107-120. [PMID: 31738617 DOI: 10.1080/14656566.2019.1691523] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Matilda Florentin
- Department of Internal Medicine, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Michael S Kostapanos
- Lipid clinic, Department of General Medicine, Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Panagiotis Anagnostis
- Unit of reproductive endocrinology, 1st Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - George Liamis
- Department of Internal Medicine, School of Medicine, University of Ioannina, Ioannina, Greece
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47
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Zwol WV, Rimbert A, Kuivenhoven JA. The Future of Lipid-lowering Therapy. J Clin Med 2019; 8:jcm8071085. [PMID: 31340607 PMCID: PMC6678580 DOI: 10.3390/jcm8071085] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 07/19/2019] [Accepted: 07/22/2019] [Indexed: 12/13/2022] Open
Abstract
The recent introduction of inhibitors of proprotein convertase subtilisin/kexin 9 to lower low-density lipoprotein (LDL) cholesterol on top of statins or as monotherapy is rapidly changing the landscape of treatment of atherosclerotic cardiovascular disease (ASCVD). However, existing lipid-lowering drugs have little impact on lipoprotein(a) (Lp(a)) or plasma triglycerides, two other risk factors for ASCVD. This review summarizes the evidence and the rationale to target Lp(a) and triglycerides and provides an overview of currently tested strategies to lower Lp(a), apolipoprotein C-III and angiopoietin-like protein 3. In addition, it summarizes new findings on the use of omega-3 fatty acids (OM3FA) to fight ASCVD. With the exception of OM3FA supplementation, the promise of the experimental drugs discussed here depends on the long-term safety and efficacy of monoclonal antibodies and/or antisense oligonucleotides Clinical outcome trials will ultimately prove whether these new therapeutic modalities will reduce ASCVD risk.
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Affiliation(s)
- Willemien van Zwol
- Department of Pediatrics, Section Molecular Genetics, University of Groningen, University Medical Centre Groningen, 9713 Groningen, The Netherlands
| | - Antoine Rimbert
- Department of Pediatrics, Section Molecular Genetics, University of Groningen, University Medical Centre Groningen, 9713 Groningen, The Netherlands
| | - Jan Albert Kuivenhoven
- Department of Pediatrics, Section Molecular Genetics, University of Groningen, University Medical Centre Groningen, 9713 Groningen, The Netherlands.
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de Bus I, Witkamp R, Zuilhof H, Albada B, Balvers M. The role of n-3 PUFA-derived fatty acid derivatives and their oxygenated metabolites in the modulation of inflammation. Prostaglandins Other Lipid Mediat 2019; 144:106351. [PMID: 31260750 DOI: 10.1016/j.prostaglandins.2019.106351] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 06/27/2019] [Indexed: 12/14/2022]
Abstract
Notwithstanding the ongoing debate on their full potential in health and disease, there is general consensus that n-3 PUFAs play important physiological roles. Increasing dietary n-3 PUFA intake results in increased DHA and EPA content in cell membranes as well as an increase in n-3 derived oxylipin and -endocannabinoid concentrations, like fatty acid amides and glycerol-esters. These shifts are believed to (partly) explain the pharmacological and anti-inflammatory effects of n-3 PUFAs. Recent studies discovered that n-3 PUFA-derived endocannabinoids can be further metabolized by the oxidative enzymes CYP-450, LOX and COX, similar to the n-6 derived endocannabinoids. Interestingly, these oxidized n-3 PUFA derived endocannabinoids of eicosapentaenoyl ethanolamide (EPEA) and docosahexaenoyl ethanolamide (DHEA) have higher anti-inflammatory and anti-proliferative potential than their precursors. In this review, an overview of recently discovered n-3 PUFA derived endocannabinoids and their metabolites is provided. In addition, the use of chemical probes will be presented as a promising technique to study the n-3 PUFA and n-3 PUFA metabolism within the field of lipid biochemistry.
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Affiliation(s)
- Ian de Bus
- Nutrition and Pharmacology Group, Division of Human Nutrition, Wageningen University & Research, Stippeneng 4, 6708 WE, Wageningen, the Netherlands; Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6708 WE, Wageningen, the Netherlands
| | - Renger Witkamp
- Nutrition and Pharmacology Group, Division of Human Nutrition, Wageningen University & Research, Stippeneng 4, 6708 WE, Wageningen, the Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6708 WE, Wageningen, the Netherlands; School of Pharmaceutical Sciences and Technology, Tianjin University, 92 Weijin Road, Tianjin, PR China; Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Bauke Albada
- Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6708 WE, Wageningen, the Netherlands.
| | - Michiel Balvers
- Nutrition and Pharmacology Group, Division of Human Nutrition, Wageningen University & Research, Stippeneng 4, 6708 WE, Wageningen, the Netherlands.
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Sheikh O, Vande Hei AG, Battisha A, Hammad T, Pham S, Chilton R. Cardiovascular, electrophysiologic, and hematologic effects of omega-3 fatty acids beyond reducing hypertriglyceridemia: as it pertains to the recently published REDUCE-IT trial. Cardiovasc Diabetol 2019; 18:84. [PMID: 31234885 PMCID: PMC6591979 DOI: 10.1186/s12933-019-0887-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 06/15/2019] [Indexed: 12/15/2022] Open
Abstract
Heart disease continues to affect health outcomes globally, accounting for a quarter of all deaths in the United States. Despite the improvement in the development and implementation of guideline-directed medical therapy, the risk of adverse cardiac events remains substantially high. Historically, it has been debated whether omega-3 polyunsaturated fatty acids provide clinical benefit in cardiac disease. The recently published REDUCE-IT trial demonstrated a statistically significant absolute risk reduction of 4.8% in its primary endpoint (cardiovascular death, nonfatal myocardial infarction, nonfatal stroke, coronary revascularization, or unstable angina) with the use of icosapent ethyl, which is a highly purified eicosapentaenoic acid (EPA) ethyl ester. However, the mechanism of action of omega-3 fatty acids is not commonly discussed. Moreover, the use of EPA was not without risk, as the incidence of atrial fibrillation was increased along with a trend towards increased bleeding risk. Thus, our aim is to help explain the function of purified EPA ethyl ester, especially at the molecular level, which will ultimately lead to a better understanding of their clinically observable effects.
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Affiliation(s)
- Omar Sheikh
- Cardiology Division, University Texas Health Science Center at San Antonio, 7403 Wurzbach Road, San Antonio, TX, 78229, USA.
| | | | - Ayman Battisha
- Cardiology Division, University of Massachusetts Medical School-Baystate, Springfield, MA, USA
| | - Tarek Hammad
- Cardiology Division, University Texas Health Science Center at San Antonio, 7403 Wurzbach Road, San Antonio, TX, 78229, USA
| | - Son Pham
- Cardiology Division, University Texas Health Science Center at San Antonio, 7403 Wurzbach Road, San Antonio, TX, 78229, USA
| | - Robert Chilton
- Cardiology Division, University Texas Health Science Center at San Antonio, 7403 Wurzbach Road, San Antonio, TX, 78229, USA
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50
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Coles S, Krasuski RA. Eicosapentaenoic acid: maybe not the 'Alpha,' but is it the Omega? Curr Opin Lipidol 2019; 30:258-259. [PMID: 31045608 DOI: 10.1097/mol.0000000000000592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Sara Coles
- Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
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