1
|
Tsimikas S, Yeang C, Kronenberg F. In Search of an Accurate Measurement of LDL-C: Correction for Lp(a)-Cholesterol to Predict Clinical Outcomes. J Am Coll Cardiol 2024; 84:178-181. [PMID: 38960511 DOI: 10.1016/j.jacc.2024.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 05/03/2024] [Indexed: 07/05/2024]
Affiliation(s)
| | - Calvin Yeang
- University of California-San Diego, La Jolla, California, USA. https://twitter.com/CalvinYeang
| | - Florian Kronenberg
- Institute of Genetic Epidemiology, Medical University of Innsbruck, Innsbruck, Austria. https://twitter.com/KronenbergLab
| |
Collapse
|
2
|
Arnold N, Blaum C, Goßling A, Brunner FJ, Bay B, Zeller T, Ferrario MM, Brambilla P, Cesana G, Leoni V, Palmieri L, Donfrancesco C, Ojeda F, Linneberg A, Söderberg S, Iacoviello L, Gianfagna F, Costanzo S, Sans S, Veronesi G, Thorand B, Peters A, Tunstall-Pedoe H, Kee F, Salomaa V, Schnabel RB, Kuulasmaa K, Blankenberg S, Waldeyer C, Koenig W. Impact of Lipoprotein(a) Level on Low-Density Lipoprotein Cholesterol- or Apolipoprotein B-Related Risk of Coronary Heart Disease. J Am Coll Cardiol 2024; 84:165-177. [PMID: 38960510 DOI: 10.1016/j.jacc.2024.04.050] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/22/2024] [Accepted: 04/12/2024] [Indexed: 07/05/2024]
Abstract
BACKGROUND Conventional low-density lipoprotein cholesterol (LDL-C) quantification includes cholesterol attributable to lipoprotein(a) (Lp(a)-C) due to their overlapping densities. OBJECTIVES The purposes of this study were to compare the association between LDL-C and LDL-C corrected for Lp(a)-C (LDLLp(a)corr) with incident coronary heart disease (CHD) in the general population and to investigate whether concomitant Lp(a) values influence the association of LDL-C or apolipoprotein B (apoB) with coronary events. METHODS Among 68,748 CHD-free subjects at baseline LDLLp(a)corr was calculated as "LDL-C-Lp(a)-C," where Lp(a)-C was 30% or 17.3% of total Lp(a) mass. Fine and Gray competing risk-adjusted models were applied for the association between the outcome incident CHD and: 1) LDL-C and LDLLp(a)corr in the total sample; and 2) LDL-C and apoB after stratification by Lp(a) mass (≥/<90th percentile). RESULTS Similar risk estimates for incident CHD were found for LDL-C and LDL-CLp(a)corr30 or LDL-CLp(a)corr17.3 (subdistribution HR with 95% CI) were 2.73 (95% CI: 2.34-3.20) vs 2.51 (95% CI: 2.15-2.93) vs 2.64 (95% CI: 2.26-3.10), respectively (top vs bottom fifth; fully adjusted models). Categorization by Lp(a) mass resulted in higher subdistribution HRs for uncorrected LDL-C and incident CHD at Lp(a) ≥90th percentile (4.38 [95% CI: 2.08-9.22]) vs 2.60 [95% CI: 2.21-3.07]) at Lp(a) <90th percentile (top vs bottom fifth; Pinteraction0.39). In contrast, apoB risk estimates were lower in subjects with higher Lp(a) mass (2.43 [95% CI: 1.34-4.40]) than in Lp(a) <90th percentile (3.34 [95% CI: 2.78-4.01]) (Pinteraction0.49). CONCLUSIONS Correction of LDL-C for its Lp(a)-C content provided no meaningful information on CHD-risk estimation at the population level. Simple categorization of Lp(a) mass (≥/<90th percentile) influenced the association between LDL-C or apoB with future CHD mostly at higher Lp(a) levels.
Collapse
Affiliation(s)
- Natalie Arnold
- Department of Cardiology, University Heart & Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; German Center for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Luebeck, Hamburg, Germany; Center for Population Health Innovation (POINT), University Heart and Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christopher Blaum
- Department of Cardiology, University Heart & Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Center for Population Health Innovation (POINT), University Heart and Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Alina Goßling
- Department of Cardiology, University Heart & Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Center for Population Health Innovation (POINT), University Heart and Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Fabian J Brunner
- Department of Cardiology, University Heart & Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; German Center for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Luebeck, Hamburg, Germany; Center for Population Health Innovation (POINT), University Heart and Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Benjamin Bay
- Department of Cardiology, University Heart & Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; German Center for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Luebeck, Hamburg, Germany; Center for Population Health Innovation (POINT), University Heart and Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tanja Zeller
- Department of Cardiology, University Heart & Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; German Center for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Luebeck, Hamburg, Germany; Center for Population Health Innovation (POINT), University Heart and Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; University Center of Cardiovascular Science at University Heart and Vascular Center Hamburg, Hamburg, Germany
| | - Marco M Ferrario
- Research Center in Epidemiology and Preventive Medicine - EPIMED, Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Paolo Brambilla
- Department of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy
| | - Giancarlo Cesana
- Department of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy
| | - Valerio Leoni
- Laboratory of Clinical Pathology, Hospital Pio XI of Desio, ASST Brianza, School of Medicine and Surgery, University of Milano Bicocca, Milan, Italy
| | - Luigi Palmieri
- Department of Cardiovascular, Endocrine-Metabolic Diseases and Aging, Istituto Superiore di Sanità-ISS, Rome, Italy
| | - Chiara Donfrancesco
- Department of Cardiovascular, Endocrine-Metabolic Diseases and Aging, Istituto Superiore di Sanità-ISS, Rome, Italy
| | - Francisco Ojeda
- Department of Cardiology, University Heart & Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Center for Population Health Innovation (POINT), University Heart and Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Allan Linneberg
- Center for Clinical Research and Prevention, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark; Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Stefan Söderberg
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Licia Iacoviello
- Department of Medicine and Surgery, LUM University, Casamassima, Italy; Department of Epidemiology and Prevention, IRCCS Neuromed, Pozzilli, Italy
| | - Francesco Gianfagna
- Research Center in Epidemiology and Preventive Medicine - EPIMED, Department of Medicine and Surgery, University of Insubria, Varese, Italy; Mediterranea Cardiocentro, Napoli, Italy
| | - Simona Costanzo
- Department of Epidemiology and Prevention, IRCCS Neuromed, Pozzilli, Italy
| | - Susana Sans
- Catalan Department of Health, Barcelona, Spain
| | - Giovanni Veronesi
- Research Center in Epidemiology and Preventive Medicine - EPIMED, Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Barbara Thorand
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany; Institute for Medical Information Processing, Biometry, and Epidemiology-IBE, Ludwig-Maximilians University of Munich, Munich, Germany
| | - Annette Peters
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany; Institute for Medical Information Processing, Biometry, and Epidemiology-IBE, Ludwig-Maximilians University of Munich, Munich, Germany; German Center for Cardiovascular Disease Research (DZHK), partner site Munich Heart Alliance, Munich, Germany
| | - Hugh Tunstall-Pedoe
- Cardiovascular Epidemiology Unit, Institute of Cardiovascular Research, University of Dundee, Dundee, Scotland
| | - Frank Kee
- Centre for Public Health, Queens University of Belfast, Belfast, Northern Ireland, United Kingdom
| | - Veikko Salomaa
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare (THL), Helsinki, Finland
| | - Renate B Schnabel
- Department of Cardiology, University Heart & Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; German Center for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Luebeck, Hamburg, Germany; Center for Population Health Innovation (POINT), University Heart and Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kari Kuulasmaa
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare (THL), Helsinki, Finland
| | - Stefan Blankenberg
- Department of Cardiology, University Heart & Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; German Center for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Luebeck, Hamburg, Germany; Center for Population Health Innovation (POINT), University Heart and Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christoph Waldeyer
- Department of Cardiology, University Heart & Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; German Center for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Luebeck, Hamburg, Germany; Center for Population Health Innovation (POINT), University Heart and Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Wolfgang Koenig
- German Heart Center, Munich, Technical University of Munich, Munich, Germany; Institute of Epidemiology and Medical Biometry, University of Ulm, Ulm, Germany; German Center for Cardiovascular Disease Research (DZHK), partner site Munich Heart Alliance, Munich, Germany.
| |
Collapse
|
3
|
Law HG, Stanhope KL, Zhang W, Myagmarsuren M, Jamshed ZM, Khan MA, Bang H, Havel PJ, Berglund L, Enkhmaa B. Lipoprotein(a) and Diet: Consuming Sugar-Sweetened Beverages Lowers Lipoprotein(a) Levels in Obese and Overweight Adults. J Lipid Res 2024:100588. [PMID: 38969065 DOI: 10.1016/j.jlr.2024.100588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 06/12/2024] [Accepted: 06/28/2024] [Indexed: 07/07/2024] Open
Abstract
Lipoprotein(a) [Lp(a)] is a risk factor for cardiovascular disease. A size polymorphism in the apolipoprotein(a) [apo(a)] gene, determined by the number of Kringle (K) repeats, inversely regulates Lp(a) levels. Non-genetic factors including dietary saturated fat influence Lp(a) levels. However, less is known about the effects of carbohydrates including dietary sugars. In this double-blind, parallel-arm study among 32 overweight/obese adults, we investigated the effect of consuming glucose- or fructose-sweetened beverages providing 25% of energy requirements for 10 weeks on Lp(a) level and assessed the role of the apo(a) size polymorphism. The mean (± SD) age of participants was 54 ± 8 years, 50% were women, and 75% were of European descent. At the end of the 10-week intervention, Lp(a) level was reduced by an average (± SEM) of -13.2% ± 4.3% in all participants (p=0.005); by -15.3% ± 7.8% in the 15 participants who consumed glucose (p=0.07); and by -11.3% ± 4.5% in the 17 participants who consumed fructose (p=0.02), without any significant difference in the effect between the two sugar groups. The relative changes in Lp(a) levels were similar across subgroups of lower vs higher baseline Lp(a) level or carrier vs non-carrier of an atherogenic small (≤22K) apo(a) size. In contrast, LDL-C increased. In conclusion, in older, overweight/obese adults, consuming sugar-sweetened beverages reduced Lp(a) levels by ∼13% independently of apo(a) size variability and the type of sugar consumed. The Lp(a) response was opposite to that of LDL-C and triglyceride concentrations. These findings suggest that metabolic pathways might impact Lp(a) levels.
Collapse
Affiliation(s)
- Hayley G Law
- Department of Internal Medicine, University of California Davis, Davis, CA, USA
| | - Kimber L Stanhope
- Department of Molecular Biosciences, School of Veterinary Medicine and Department of Nutrition, University of California Davis, Davis, CA, USA
| | - Wei Zhang
- Department of Internal Medicine, University of California Davis, Davis, CA, USA
| | | | - Zahraa M Jamshed
- Department of Internal Medicine, University of California Davis, Davis, CA, USA
| | - Muhammad A Khan
- Department of Internal Medicine, University of California Davis, Davis, CA, USA
| | - Heejung Bang
- Department of Public Health Sciences, School of Medicine, University of California Davis, Davis, CA, USA
| | - Peter J Havel
- Department of Molecular Biosciences, School of Veterinary Medicine and Department of Nutrition, University of California Davis, Davis, CA, USA
| | - Lars Berglund
- Department of Internal Medicine, University of California Davis, Davis, CA, USA
| | - Byambaa Enkhmaa
- Department of Internal Medicine, University of California Davis, Davis, CA, USA.
| |
Collapse
|
4
|
Nissen SE, Wolski K, Watts GF, Koren MJ, Fok H, Nicholls SJ, Rider DA, Cho L, Romano S, Melgaard C, Rambaran C. Single Ascending and Multiple-Dose Trial of Zerlasiran, a Short Interfering RNA Targeting Lipoprotein(a): A Randomized Clinical Trial. JAMA 2024; 331:1534-1543. [PMID: 38587822 PMCID: PMC11002768 DOI: 10.1001/jama.2024.4504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 03/06/2024] [Indexed: 04/09/2024]
Abstract
Importance Lipoprotein(a) is a causal risk factor for atherosclerotic cardiovascular disease (ASCVD) and calcific aortic stenosis, with no pharmacological treatments approved by regulatory authorities. Objectives To assess the safety and tolerability of zerlasiran, a short interfering RNA targeting hepatic synthesis of apolipoprotein(a), and effects on serum concentrations of lipoprotein(a). Design, Setting, and Participants Single- and multiple-dose study in healthy participants and patients with stable ASCVD, respectively, with lipoprotein(a) serum concentrations greater than 150 nmol/L, conducted at 7 research sites in the US, the Netherlands, UK, and Australia between November 18, 2020, and February 8, 2023, with last follow-up on August 23, 2023. Interventions Participants were randomized to receive (1) a single subcutaneous dose of placebo (n = 8), zerlasiran 300 mg (n = 6) or 600 mg (n = 6); or (2) 2 doses of placebo (n = 9), zerlasiran 200 mg (n = 9) at a 4-week interval or 300 mg (n = 9) or 450 mg (n = 9) at an 8-week interval. Main Outcomes Measures The primary outcome was safety and tolerability. Secondary outcomes included serum levels of zerlasiran and effects on lipoprotein(a) serum concentrations. Results Among 37 patients in the multiple-dose group (mean age, 56 [SD, 10.4] years; 15 [42%] women), 36 completed the trial. Among 14 participants with extended follow-up after single doses, 13 completed the trial. There were no serious adverse events. Median baseline lipoprotein(a) concentrations in the multiple-dose group were 288 (IQR, 199-352) nmol/L. Median changes in lipoprotein(a) concentration at 365 days after single doses were 14% (IQR, 13% to 15%) for the placebo group, -30% (IQR, -51% to -18%) for the 300 mg of zerlasiran group, and -29% (IQR, -39% to -7%) for the 600-mg dose group. After 2 doses, maximal median changes in lipoprotein(a) concentration were 19 (IQR, -17 to 28) nmol/L for the placebo group, -258 (IQR, -289 to -188) nmol/L for the 200 mg of zerlasiran group, -310 (IQR, -368 to -274) nmol/L for the 300-mg dose group, and -242 (IQR, -343 to -182) nmol/L for the 450-mg dose group, with maximal median percent change of 7% (IQR, -4% to 21%), -97% (IQR, -98% to -95%), -98% (IQR, -99% to -97%), and -99% (IQR, -99% to -98%), respectively, attenuating to 0.3% (IQR, -2% to 21%), -60% (IQR, -71% to -40%), -90% (IQR, -91% to -74%), and -89% (IQR, -91% to -76%) 201 days after administration. Conclusions Zerlasiran was well tolerated and reduced lipoprotein(a) concentrations with infrequent administration. Trial Registration ClinicalTrials.gov Identifier: NCT04606602.
Collapse
Affiliation(s)
| | - Kathy Wolski
- Cleveland Clinic Center for Clinical Research, Cleveland, Ohio
| | - Gerald F. Watts
- Department of Cardiology, Royal Perth Hospital and School of Medicine, University of Western Australia, Perth, Australia
| | - Michael J. Koren
- Jacksonville Center for Clinical Research, Jacksonville, Florida
| | - Henry Fok
- Silence Therapeutics, London, United Kingdom
| | | | | | - Leslie Cho
- Cleveland Clinic Center for Clinical Research, Cleveland, Ohio
| | | | - Carrie Melgaard
- Cleveland Clinic Center for Clinical Research, Cleveland, Ohio
| | | |
Collapse
|
5
|
Pavlyha M, Li Y, Crook S, Anderson BR, Reyes-Soffer G. Race/ethnicity and socioeconomic status affect the assessment of lipoprotein(a) levels in clinical practice. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.05.14.24307362. [PMID: 38798532 PMCID: PMC11118621 DOI: 10.1101/2024.05.14.24307362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Background and Objective High Lp(a) levels are a risk factor for ASCVD, however Lp(a) ordering in clinical practice is low. This study examines how race/ethnicity and socioeconomic status influence Lp(a) ordering. Methods This is a single center, retrospective study (2/1/2020-6/30/2023) using electronic medical records of adults with at least one ICD-10 diagnosis of ASCVD or resistant hyperlipidemia (LDL-C >160 mg/dL on statin therapy). We evaluated Lp(a) level differences among racial/ethnic groups and sexes. We also assessed associations between diagnosis type, diagnosis number, age at diagnosis, race, socioeconomic score (based on zip codes), public health coverage and presence of Lp(a) orders. Results 4% of our cohort (N=56,833) had an Lp(a) order (17.3% Hispanic, 8.7% non-Hispanic Black, 47.5% non-Hispanic White and, 27% Asian/others). Non-Hispanic Black and Hispanic patients had lower rates of Lp(a) orders (0.17%, 0.28%, respectively) when compared to non-Hispanic White patients (2.35%), p<0.001, however, their median Lp(a) levels were higher. Individuals belonging to deprived socioeconomic groups or on Medicaid, were less likely to have an Lp(a) order (RR=0.39, p<0.001 and RR=0.40, p<0.001 respectively). Certain diagnoses (carotid stenosis, family history of ASCVD and FH) and multiple diagnoses (>2) resulted in more Lp(a) orders compared to those with only one diagnosis (p<0.001). Conclusions Lp(a) ordering is low in patients with ASCVD. Non-Hispanic Black and Hispanic patients at risk are less likely to have an Lp(a) order. Individuals residing in socioeconomically deprived neighborhoods and on Medicaid are also less like have Lp(a) order. Lp(a) orders depend on the type and number of patients' diagnoses.
Collapse
|
6
|
Leistner DM, Laguna-Fernandez A, Haghikia A, Abdelwahed YS, Schatz AS, Erbay A, Roehle R, Fonseca AF, Ferber P, Landmesser U. Impact of elevated lipoprotein(a) on coronary artery disease phenotype and severity. Eur J Prev Cardiol 2024; 31:856-865. [PMID: 38348689 DOI: 10.1093/eurjpc/zwae007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 03/19/2024]
Abstract
AIMS A thorough characterization of the relationship between elevated lipoprotein(a) [Lp(a)] and coronary artery disease (CAD) is lacking. This study aimed to quantitatively assess the association of increasing Lp(a) levels and CAD severity in a real-world population. METHODS AND RESULTS This non-interventional, cross-sectional, LipidCardio study included patients aged ≥21 years undergoing angiography (October 2016-March 2018) at a tertiary cardiology centre, who have at least one Lp(a) measurement. The association between Lp(a) and CAD severity was determined by synergy between PCI with taxus and cardiac surgery (SYNTAX)-I and Gensini scores and angiographic characteristics. Overall, 975 patients (mean age: 69.5 years) were included; 70.1% were male, 97.5% had Caucasian ancestry, and 33.2% had a family history of premature atherosclerotic cardiovascular disease. Median baseline Lp(a) level was 19.3 nmol/L. Patients were stratified by baseline Lp(a): 72.9% had < 65 nmol/L, 21.0% had ≥100 nmol/L, 17.2% had ≥125 nmol/L, and 12.9% had ≥150 nmol/L. Compared with the normal (Lp(a) < 65 nmol/L) group, elevated Lp(a) groups (e.g. ≥ 150 nmol/L) had a higher proportion of patients with prior CAD (48.4% vs. 62.7%; P < 0.01), prior coronary revascularization (39.1% vs. 51.6%; P = 0.01), prior coronary artery bypass graft (6.0% vs. 15.1%; P < 0.01), vessel(s) with lesions (68.5% vs. 81.3%; P = 0.03), diffusely narrowed vessels (10.9% vs. 16.5%; P = 0.01) or chronic total occlusion lesions (14.3% vs. 25.2%; P < 0.01), and higher median SYNTAX-I (3.0 vs. 5.5; P = 0.01) and Gensini (10.0 vs. 16.0; P < 0.01) scores. CONCLUSION Elevated Lp(a) was associated with a more severe presentation of CAD. Awareness of Lp(a) levels in patients with CAD may have implications in their clinical management.
Collapse
Affiliation(s)
- David M Leistner
- Department of Cardiology, Campus Benjamin Franklin (CBF), Charité-Universitätsmedizin Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
- Deutsches Zentrum für Herzkreislaufforschung (DZHK), partner site Berlin, DZHK-Geschäftsstelle, Potsdamer Str. 58, 10785 Berlin, Germany
- Friede Springer Cardiovascular Prevention Center, Charité, Hindenburgdamm 30, 12203 Berlin, Germany
- Berlin Institute of Health (BIH), Anna-Louisa-Karsch-Straße 2, 10178 Berlin, Germany
- University Hospital Frankfurt and Wolfgang Goethe University, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany
| | | | - Arash Haghikia
- Department of Cardiology, Campus Benjamin Franklin (CBF), Charité-Universitätsmedizin Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
- Deutsches Zentrum für Herzkreislaufforschung (DZHK), partner site Berlin, DZHK-Geschäftsstelle, Potsdamer Str. 58, 10785 Berlin, Germany
- Friede Springer Cardiovascular Prevention Center, Charité, Hindenburgdamm 30, 12203 Berlin, Germany
- Berlin Institute of Health (BIH), Anna-Louisa-Karsch-Straße 2, 10178 Berlin, Germany
| | - Youssef S Abdelwahed
- Department of Cardiology, Campus Benjamin Franklin (CBF), Charité-Universitätsmedizin Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
- Deutsches Zentrum für Herzkreislaufforschung (DZHK), partner site Berlin, DZHK-Geschäftsstelle, Potsdamer Str. 58, 10785 Berlin, Germany
- Friede Springer Cardiovascular Prevention Center, Charité, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Anne-Sophie Schatz
- Department of Cardiology, Campus Benjamin Franklin (CBF), Charité-Universitätsmedizin Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
- Deutsches Zentrum für Herzkreislaufforschung (DZHK), partner site Berlin, DZHK-Geschäftsstelle, Potsdamer Str. 58, 10785 Berlin, Germany
- Friede Springer Cardiovascular Prevention Center, Charité, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Aslihan Erbay
- Department of Cardiology, Campus Benjamin Franklin (CBF), Charité-Universitätsmedizin Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
- Deutsches Zentrum für Herzkreislaufforschung (DZHK), partner site Berlin, DZHK-Geschäftsstelle, Potsdamer Str. 58, 10785 Berlin, Germany
- Friede Springer Cardiovascular Prevention Center, Charité, Hindenburgdamm 30, 12203 Berlin, Germany
- University Hospital Frankfurt and Wolfgang Goethe University, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany
| | - Robert Roehle
- Berlin Institute of Health (BIH), Anna-Louisa-Karsch-Straße 2, 10178 Berlin, Germany
- Institute of Biometry and Clinical Epidemiology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Ana F Fonseca
- Novartis Pharma AG, Fabrikstrasse 2, CH-4056 Basel, Switzerland
| | - Philippe Ferber
- Novartis Pharma AG, Fabrikstrasse 2, CH-4056 Basel, Switzerland
| | - Ulf Landmesser
- Department of Cardiology, Campus Benjamin Franklin (CBF), Charité-Universitätsmedizin Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
- Deutsches Zentrum für Herzkreislaufforschung (DZHK), partner site Berlin, DZHK-Geschäftsstelle, Potsdamer Str. 58, 10785 Berlin, Germany
- Friede Springer Cardiovascular Prevention Center, Charité, Hindenburgdamm 30, 12203 Berlin, Germany
- Berlin Institute of Health (BIH), Anna-Louisa-Karsch-Straße 2, 10178 Berlin, Germany
| |
Collapse
|
7
|
Koschinsky ML, Bajaj A, Boffa MB, Dixon DL, Ferdinand KC, Gidding SS, Gill EA, Jacobson TA, Michos ED, Safarova MS, Soffer DE, Taub PR, Wilkinson MJ, Wilson DP, Ballantyne CM. A focused update to the 2019 NLA scientific statement on use of lipoprotein(a) in clinical practice. J Clin Lipidol 2024; 18:e308-e319. [PMID: 38565461 DOI: 10.1016/j.jacl.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 03/06/2024] [Indexed: 04/04/2024]
Abstract
Since the 2019 National Lipid Association (NLA) Scientific Statement on Use of Lipoprotein(a) in Clinical Practice was issued, accumulating epidemiological data have clarified the relationship between lipoprotein(a) [Lp(a)] level and cardiovascular disease risk and risk reduction. Therefore, the NLA developed this focused update to guide clinicians in applying this emerging evidence in clinical practice. We now have sufficient evidence to support the recommendation to measure Lp(a) levels at least once in every adult for risk stratification. Individuals with Lp(a) levels <75 nmol/L (30 mg/dL) are considered low risk, individuals with Lp(a) levels ≥125 nmol/L (50 mg/dL) are considered high risk, and individuals with Lp(a) levels between 75 and 125 nmol/L (30-50 mg/dL) are at intermediate risk. Cascade screening of first-degree relatives of patients with elevated Lp(a) can identify additional individuals at risk who require intervention. Patients with elevated Lp(a) should receive early, more-intensive risk factor management, including lifestyle modification and lipid-lowering drug therapy in high-risk individuals, primarily to reduce low-density lipoprotein cholesterol (LDL-C) levels. The U.S. Food and Drug Administration approved an indication for lipoprotein apheresis (which reduces both Lp(a) and LDL-C) in high-risk patients with familial hypercholesterolemia and documented coronary or peripheral artery disease whose Lp(a) level remains ≥60 mg/dL [∼150 nmol/L)] and LDL-C ≥ 100 mg/dL on maximally tolerated lipid-lowering therapy. Although Lp(a) is an established independent causal risk factor for cardiovascular disease, and despite the high prevalence of Lp(a) elevation (∼1 of 5 individuals), measurement rates are low, warranting improved screening strategies for cardiovascular disease prevention.
Collapse
Affiliation(s)
- Marlys L Koschinsky
- Department of Physiology & Pharmacology and Robarts Research Institute, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada (Drs Koschinsky, Boffa)
| | - Archna Bajaj
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA (Drs Bajaj, Soffer)
| | - Michael B Boffa
- Department of Physiology & Pharmacology and Robarts Research Institute, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada (Drs Koschinsky, Boffa)
| | - Dave L Dixon
- Department of Pharmacotherapy & Outcomes Science, Virginia Commonwealth University School of Pharmacy, Richmond, VA, USA (Dr Dixon)
| | - Keith C Ferdinand
- Department of Medicine, Tulane University School of Medicine, New Orleans, LA, USA (Dr. Ferdinand)
| | - Samuel S Gidding
- Department of Genomic Health, Geisinger. Danville, PA, USA (Dr Gidding)
| | - Edward A Gill
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA (Dr Gill)
| | - Terry A Jacobson
- Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA (Dr Jacobson)
| | - Erin D Michos
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA (Dr Michos)
| | - Maya S Safarova
- Division of Cardiovascular Medicine, Department of Internal Medicine, Froedtert & the Medical College of Wisconsin, Milwaukee, WI, USA (Dr Safarova)
| | - Daniel E Soffer
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA (Drs Bajaj, Soffer)
| | - Pam R Taub
- Department of Medicine, University of California San Diego, La Jolla, CA, USA (Drs Taub, Wilkinson)
| | - Michael J Wilkinson
- Department of Medicine, University of California San Diego, La Jolla, CA, USA (Drs Taub, Wilkinson)
| | - Don P Wilson
- Department of Pediatric Endocrinology and Diabetes, Cook Children's Medical Center, Fort Worth, TX, USA (Dr Wilson)
| | - Christie M Ballantyne
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA (Dr Ballantyne).
| |
Collapse
|
8
|
Reijman MD, Kusters DM, Groothoff JW, Arbeiter K, Dann EJ, de Boer LM, de Ferranti SD, Gallo A, Greber-Platzer S, Hartz J, Hudgins LC, Ibarretxe D, Kayikcioglu M, Klingel R, Kolovou GD, Oh J, Planken RN, Stefanutti C, Taylan C, Wiegman A, Schmitt CP. Clinical practice recommendations on lipoprotein apheresis for children with homozygous familial hypercholesterolaemia: An expert consensus statement from ERKNet and ESPN. Atherosclerosis 2024; 392:117525. [PMID: 38598969 DOI: 10.1016/j.atherosclerosis.2024.117525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/08/2024] [Accepted: 03/19/2024] [Indexed: 04/12/2024]
Abstract
Homozygous familial hypercholesterolaemia is a life-threatening genetic condition, which causes extremely elevated LDL-C levels and atherosclerotic cardiovascular disease very early in life. It is vital to start effective lipid-lowering treatment from diagnosis onwards. Even with dietary and current multimodal pharmaceutical lipid-lowering therapies, LDL-C treatment goals cannot be achieved in many children. Lipoprotein apheresis is an extracorporeal lipid-lowering treatment, which is used for decades, lowering serum LDL-C levels by more than 70% directly after the treatment. Data on the use of lipoprotein apheresis in children with homozygous familial hypercholesterolaemia mainly consists of case-reports and case-series, precluding strong evidence-based guidelines. We present a consensus statement on lipoprotein apheresis in children based on the current available evidence and opinions from experts in lipoprotein apheresis from over the world. It comprises practical statements regarding the indication, methods, treatment goals and follow-up of lipoprotein apheresis in children with homozygous familial hypercholesterolaemia and on the role of lipoprotein(a) and liver transplantation.
Collapse
Affiliation(s)
- M Doortje Reijman
- Amsterdam UMC, University of Amsterdam, Department of Paediatrics, Amsterdam Cardiovascular Sciences, Amsterdam Gastroenterology Endocrinology Metabolism, Meibergdreef 9, Amsterdam, the Netherlands
| | - D Meeike Kusters
- Amsterdam UMC, University of Amsterdam, Department of Paediatrics, Amsterdam Cardiovascular Sciences, Amsterdam Gastroenterology Endocrinology Metabolism, Meibergdreef 9, Amsterdam, the Netherlands
| | - Jaap W Groothoff
- Amsterdam UMC, University of Amsterdam, Department of Paediatrics, Amsterdam Cardiovascular Sciences, Amsterdam Gastroenterology Endocrinology Metabolism, Meibergdreef 9, Amsterdam, the Netherlands
| | - Klaus Arbeiter
- Division of Paediatric Nephrology and Gastroenterology, Department of Paediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria
| | - Eldad J Dann
- Blood Bank and Apheresis Unit Rambam Health Care Campus, Haifa, Israel
| | - Lotte M de Boer
- Amsterdam UMC, University of Amsterdam, Department of Paediatrics, Amsterdam Cardiovascular Sciences, Amsterdam Gastroenterology Endocrinology Metabolism, Meibergdreef 9, Amsterdam, the Netherlands
| | - Sarah D de Ferranti
- Department of Cardiology, Boston Children's Hospital, Boston, MA, USA; Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Antonio Gallo
- Sorbonne Université, INSERM, UMR 1166, Lipidology and Cardiovascular Prevention Unit, Department of Nutrition, APHP, Hôpital Pitié-Salpêtrière, F-75013, Paris, France
| | - Susanne Greber-Platzer
- Clinical Division of Paediatric Pulmonology, Allergology and Endocrinology, Department of Paediatrics and Adolescent Medicine, Medical University Vienna, Vienna, Austria
| | - Jacob Hartz
- Department of Cardiology, Boston Children's Hospital, Boston, MA, USA; Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Lisa C Hudgins
- The Rogosin Institute, Weill Cornell Medical College, New York, NY, USA
| | - Daiana Ibarretxe
- Vascular Medicine and Metabolism Unit (UVASMET), Hospital Universitari Sant Joan, Spain; Universitat Rovira i Virgili, Spain; Institut Investigació Sanitària Pere Virgili (IISPV)-CERCA, Spain; Centro de Investigación Biomédica en Red en Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Spain
| | - Meral Kayikcioglu
- Department of Cardiology, Medical Faculty, Ege University, 35100, Izmir, Turkey
| | - Reinhard Klingel
- Apheresis Research Institute, Stadtwaldguertel 77, 50935, Cologne, Germany(†)
| | - Genovefa D Kolovou
- Metropolitan Hospital, Department of Preventive Cardiology, 9, Ethn. Makariou & 1, El. Venizelou, N. Faliro, 185 47, Athens, Greece
| | - Jun Oh
- University Medical Center Hamburg/Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - R Nils Planken
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands; Amsterdam Cardiovascular Sciences, Atherosclerosis & Ischemic Syndromes, Amsterdam, the Netherlands
| | - Claudia Stefanutti
- Department of Molecular Medicine, Lipid Clinic and Atherosclerosis Prevention Centre, 'Umberto I' Hospital 'Sapienza' University of Rome, I-00161, Rome, Italy
| | - Christina Taylan
- Paediatric Nephrology, Children's and Adolescents' Hospital, University Hospital of Cologne, Faculty of Medicine, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
| | - Albert Wiegman
- Amsterdam UMC, University of Amsterdam, Department of Paediatrics, Amsterdam Cardiovascular Sciences, Amsterdam Gastroenterology Endocrinology Metabolism, Meibergdreef 9, Amsterdam, the Netherlands.
| | - Claus Peter Schmitt
- Pediatric Nephrology, Center for Pediatric and Adolescent Medicine, University of Heidelberg, Germany
| |
Collapse
|
9
|
Paydaş Hataysal E, Körez MK, Yeşildal F, İşman FK. A comparative evaluation of low-density lipoprotein cholesterol estimation: Machine learning algorithms versus various equations. Clin Chim Acta 2024; 557:117853. [PMID: 38461864 DOI: 10.1016/j.cca.2024.117853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/10/2024] [Accepted: 03/01/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND Given the critical importance of Low-density lipoprotein cholesterol (LDL-C) levels in determining cardiovascular risk, it is essential to measure LDL-C accurately. Since the Friedewald formula generates incorrect predictions in many circumstances, new equations have been developed to overcome the Friedewald equations' shortcomings. This study aimed to compare estimated LDL-C with directly measured LDL-C (dLDL-C), as well as their performance in predicting LDL-C, utilizing Friedewald, extended Martin-Hopkins, Sampson, de Cordova, and Vujovic formulas and five machine learning (ML) algorithms. METHODS A total of 29,504 samples from the ISLAB-2 Core Laboratory were included in the study. All statistical analysis was performed using R version 4.1.2. Statistical Language. RESULTS Bayesian-Regularized Neural Network (BRNN) (r = 0.957) and Random Forest (RF) (r = 0.957) algorithms showed a higher correlation with dLDL-C than the other equations in all-testing dataset. All ML algorithms demonstrated less bias than pre-existing LDL-C equations with dLDL-C and outperformed the LDL-C estimation equations in terms of concordance in all-testing dataset. CONCLUSIONS The results of our research indicate that when compared to conventional equations, ML algorithms are much more effective in predicting LDL-C. ML algorithms, aided by a vast dataset, could have the capability to predict LDL-C levels even in cases where triglyceride levels are high, unlike the limited usage of Friedewald formula.
Collapse
Affiliation(s)
- Esra Paydaş Hataysal
- Department of Biochemistry, Göztepe Prof. Dr. Süleyman Yalçın City Hospital, Istanbul, Turkey.
| | - Muslu Kazım Körez
- Department of Biostatistics, Selcuk University Faculty of Medicine, Konya, Turkey
| | - Fatih Yeşildal
- Department of Biochemistry, Haydarpaşa Numune Training and Research Hospital, Istanbul, Turkey
| | - Ferruh Kemal İşman
- Department of Biochemistry, Göztepe Prof. Dr. Süleyman Yalçın City Hospital, Istanbul, Turkey
| |
Collapse
|
10
|
Groenen AG, Matveyenko A, Matienzo N, Halmos B, Zhang H, Westerterp M, Reyes-Soffer G. Apolipoprotein(a) production and clearance are associated with plasma IL-6 and IL-18 levels, dependent on ethnicity. Atherosclerosis 2024; 391:117474. [PMID: 38428286 DOI: 10.1016/j.atherosclerosis.2024.117474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 03/03/2024]
Abstract
BACKGROUND AND AIMS High plasma lipoprotein (a) [Lp(a)] levels are associated with increased atherosclerotic cardiovascular disease (ASCVD), in part attributed to elevated inflammation. High plasma Lp(a) levels inversely correlate with apolipoprotein (a) [(APO(a)] isoform size. APO(a) isoform size is negatively associated with APO(a) production rate (PR) and positively associated with APO(a) fractional catabolic rate (FCR). We asked whether APO(a) PR and FCR (kinetics) are associated with plasma levels of interleukin (IL)-6 and IL-18, pro-inflammatory interleukins that promote ASCVD. METHODS We used samples from existing data of APO(a) kinetic studies from an ethnically diverse cohort (n = 25: 10 Black, 9 Hispanic, and 6 White subjects) and assessed IL-6 and IL-18 plasma levels. We performed multivariate linear regression analyses to examine the relationships between predictors APO(a) PR or APO(a) FCR, and outcome variables IL-6 or IL-18. In these analyses, we adjusted for parameters known to affect Lp(a) levels and APO(a) PR and FCR, including race/ethnicity and APO(a) isoform size. RESULTS APO(a) PR and FCR were positively associated with plasma IL-6, independent of isoform size, and dependent on race/ethnicity. APO(a) PR was positively associated with plasma IL-18, independent of isoform size and race/ethnicity. APO(a) FCR was not associated with plasma IL-18. CONCLUSIONS Our studies demonstrate a relationship between APO(a) PR and FCR and plasma IL-6 or IL-18, interleukins that promote ASCVD. These studies provide new insights into Lp(a) pro-inflammatory properties and are especially relevant in view of therapies targeting APO(a) to decrease cardiovascular risk.
Collapse
Affiliation(s)
- Anouk G Groenen
- Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Anastasiya Matveyenko
- Columbia University Irving Medical Center, College of Physicians and Surgeons, Department of Medicine, Division of Preventive Medicine and Nutrition, New York, NY, USA
| | - Nelsa Matienzo
- Columbia University Irving Medical Center, College of Physicians and Surgeons, Department of Medicine, Division of Preventive Medicine and Nutrition, New York, NY, USA
| | - Benedek Halmos
- Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Hanrui Zhang
- Columbia University Irving Medical Center, Division of Cardiology, New York, NY, USA
| | - Marit Westerterp
- Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
| | - Gissette Reyes-Soffer
- Columbia University Irving Medical Center, College of Physicians and Surgeons, Department of Medicine, Division of Preventive Medicine and Nutrition, New York, NY, USA.
| |
Collapse
|
11
|
Hilleman DE, Vacek JL, Backes JM. Elevated Lp(a): Guidance for Identifying and Managing Patients. South Med J 2024; 117:208-213. [PMID: 38569611 DOI: 10.14423/smj.0000000000001675] [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: 04/05/2024]
Abstract
Lipoprotein(a) (Lp(a)) is a unique low-density lipoprotein-like lipoprotein that is considered an independent and causal risk factor for atherosclerotic cardiovascular disease (ASCVD) and calcific aortic valve stenosis. The Lp(a) molecule also contains apolipoprotein A and apolipoprotein B, which collectively promote atherosclerosis, thrombosis, and inflammation. Lp(a) is highly genetic and minimally responsive to nonpharmacological measures. Lp(a) serum levels ≥125 nmol/L are associated with increased ASCVD risk, but this threshold has not been accepted universally. Elevated Lp(a) is the most common genetic dyslipidemia affecting approximately 20% of the general population. Certain currently available lipid-lowering drugs, including the proprotein convertase subtilisin/kexin type 9 therapies, produce moderate reductions in Lp(a); however, none are indicated for the treatment of elevated Lp(a). There are currently four investigational RNA-based therapeutic agents that reduce Lp(a) by 70% to 100%. Two of these agents are being evaluated for ASCVD risk reduction in adequately powered outcomes trials, with results expected in 2 to 3 years. Until such therapies become available and demonstrate favorable clinical outcomes, strategies for elevated Lp(a) primarily involve early and intensive ASCVD risk factor management.
Collapse
Affiliation(s)
- Daniel E Hilleman
- From the Creighton University School of Pharmacy and Health Professions, Omaha, Nebraska
| | - James L Vacek
- Department of Cardiovascular Medicine, University of Kansas Health System, Kansas City
| | - James M Backes
- the Atherosclerosis and LDL-Apheresis Center, University of Kansas Medical Center, KU School of Pharmacy, Lawrence
| |
Collapse
|
12
|
Zhang Z, Rodriguez M, Zheng Z. Clot or Not? Reviewing the Reciprocal Regulation Between Lipids and Blood Clotting. Arterioscler Thromb Vasc Biol 2024; 44:533-544. [PMID: 38235555 PMCID: PMC10922732 DOI: 10.1161/atvbaha.123.318286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Both hyperlipidemia and thrombosis contribute to the risks of atherosclerotic cardiovascular diseases, which are the leading cause of death and reduced quality of life in survivors worldwide. The accumulation of lipid-rich plaques on arterial walls eventually leads to the rupture or erosion of vulnerable lesions, triggering excessive blood clotting and leading to adverse thrombotic events. Lipoproteins are highly dynamic particles that circulate in blood, carry insoluble lipids, and are associated with proteins, many of which are involved in blood clotting. A growing body of evidence suggests a reciprocal regulatory relationship between blood clotting and lipid metabolism. In this review article, we summarize the observations that lipoproteins and lipids impact the hemostatic system, and the clotting-related proteins influence lipid metabolism. We also highlight the gaps that need to be filled in this area of research.
Collapse
Affiliation(s)
- Ziyu Zhang
- Blood Research Institute, Versiti Blood Center of Wisconsin, Milwaukee, Wisconsin 53226, USA
| | - Maya Rodriguez
- Blood Research Institute, Versiti Blood Center of Wisconsin, Milwaukee, Wisconsin 53226, USA
- College of Arts and Sciences, Marquette University, Milwaukee, Wisconsin 53233, USA
| | - Ze Zheng
- Blood Research Institute, Versiti Blood Center of Wisconsin, Milwaukee, Wisconsin 53226, USA
- Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA
- Department of Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA
| |
Collapse
|
13
|
Stürzebecher PE, Uttinger KL, Vogel M, Schlingmann M, Ceglarek U, Isermann B, Kiess W, Körner A, Laufs U. Lipoprotein(a) serum concentrations in children in relation to body mass index, age and sex. Pediatr Res 2024:10.1038/s41390-024-03108-4. [PMID: 38418593 DOI: 10.1038/s41390-024-03108-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 02/08/2024] [Accepted: 02/10/2024] [Indexed: 03/01/2024]
Abstract
BACKGROUND Lipoprotein(a) (Lp(a)) is an inherited risk factor for atherosclerotic cardiovascular disease (ASCVD). Limited data exist on Lp(a) values in children. We aimed to evaluate whether Lp(a) concentrations in youth are influenced by BMI. METHODS 756 blood samples of 248 children with obesity and 264 matched healthy children aged 5 and 18 years, enrolled in the population-based LIFE Child (German civilization diseases cohort) study, were analyzed. Repeat measurements were available in 154 children (1-4 follow ups, ~1 year apart). RESULTS The median Lp(a) concentration in the total cohort (n = 512) at first visit was 9.7 mg/dL (IQR 4.0-28.3). Lp(a) concentrations between 30-50 mg/dL were observed in 11.5%, while 12.5% exhibited Lp(a) ≧50 mg/dL. There was no association of Lp(a) with body mass index (BMI) (ß = 0.004, P = 0.49). Lp(a) levels did not correlate with age or sex, while Lp(a) was associated positively with low-density lipoprotein cholesterol (ß = 0.05, P < 0.0001). The Lp(a) risk category remained stable in 94% of all children in repeated measurements. CONCLUSIONS The data showed no association of Lp(a) levels in children with BMI, age or sex. Measurement of Lp(a) in youth may be useful to identify children at increased lifetime risk for ASCVD. IMPACT In youth, Lp(a) levels are not affected by age, sex and BMI. Lp(a) risk categories remain stable over time in repeated measurements in children. Measurement of Lp(a) in children may be useful as an additional factor to identify children at increased lifetime risk for ASCVD and for reverse family screening.
Collapse
Affiliation(s)
- Paulina E Stürzebecher
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Leipzig, 04103, Germany.
| | - Konstantin L Uttinger
- Department of Visceral, Transplant, Thoracic and Vascular Surgery at Leipzig University Hospital, Leipzig, Germany
| | - Mandy Vogel
- LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, 04103, Leipzig, Germany
- Hospital for Children and Adolescents and Center for Pediatric Research (CPL), University of Leipzig, Liebigstrasse 20a, 04103, Leipzig, Germany
| | - Maike Schlingmann
- LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, 04103, Leipzig, Germany
| | - Uta Ceglarek
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostic, University Hospital Leipzig, 04103, Leipzig, Germany
| | - Berend Isermann
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostic, University Hospital Leipzig, 04103, Leipzig, Germany
| | - Wieland Kiess
- LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, 04103, Leipzig, Germany
- Hospital for Children and Adolescents and Center for Pediatric Research (CPL), University of Leipzig, Liebigstrasse 20a, 04103, Leipzig, Germany
| | - Antje Körner
- LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, 04103, Leipzig, Germany
- Hospital for Children and Adolescents and Center for Pediatric Research (CPL), University of Leipzig, Liebigstrasse 20a, 04103, Leipzig, Germany
| | - Ulrich Laufs
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Leipzig, 04103, Germany
| |
Collapse
|
14
|
Rosenson RS, López JAG, Monsalvo ML, Wu Y, Wang H, Marcovina SM. Quantification of LDL-Cholesterol Corrected for Molar Concentration of Lipoprotein(a). Cardiovasc Drugs Ther 2024; 38:191-197. [PMID: 36435949 PMCID: PMC10876802 DOI: 10.1007/s10557-022-07407-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/10/2022] [Indexed: 11/27/2022]
Abstract
PURPOSE Cholesterol in lipoprotein(a) [Lp(a)-C] is commonly estimated as 30% of the measured Lp(a) mass. However, difficulties in the accurate measurement of Lp(a) mass, along with the inaccuracy of the 30% assumption, produce erroneous values when LDL-C is corrected for Lp(a) [LDL-CLp(a)corr]. Our aim was to develop a new formula for LDL-CLp(a)corr to reduce this error. METHODS We developed a new formula to calculate Lp(a)-C from the molar measurement of Lp(a), which is Lp(a) nmol/L × 0.077 = Lp(a)-C mg/dL. The calculated Lp(a)-C is subtracted from LDL-C to obtain LDL-CLp(a)corr. The results obtained with our novel formula versus the conventional formula were compared in 440 samples from 239 participants enrolled in the BANTING study. RESULTS With the conventional formula, approximately 7% of samples with low LDL-C resulted in negative LDL-CLp(a)corr values. With the new formula, no negative LDL-CLp(a)corr values occurred. Among groups with the highest Lp(a)/apoB ratio (p < 0.001) and smaller apolipoprotein(a) isoform size (p < 0.006), LDL-CLp(a)corr was significantly underestimated by the conventional formula, which may result in the undertreatment of some patients. CONCLUSION The new formula provides more reliable estimates of LDL-CLp(a)corr than the conventional formula. TRIAL REGISTRATION ClinicalTrials.gov NCT02739984.
Collapse
Affiliation(s)
- Robert S Rosenson
- Metabolism and Lipids Unit, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Hospital Box, 1030, NY, 10029, New York, USA.
| | | | | | - You Wu
- Global Development, Amgen Inc., Thousand Oaks, CA, USA
| | - Huei Wang
- Global Development, Amgen Inc., Thousand Oaks, CA, USA
| | | |
Collapse
|
15
|
Watts GF, Gidding SS, Hegele RA, Raal FJ, Sturm AC, Jones LK, Sarkies MN, Al-Rasadi K, Blom DJ, Daccord M, de Ferranti SD, Folco E, Libby P, Mata P, Nawawi HM, Ramaswami U, Ray KK, Stefanutti C, Yamashita S, Pang J, Thompson GR, Santos RD. International Atherosclerosis Society guidance for implementing best practice in the care of familial hypercholesterolaemia. Nat Rev Cardiol 2023; 20:845-869. [PMID: 37322181 DOI: 10.1038/s41569-023-00892-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/12/2023] [Indexed: 06/17/2023]
Abstract
This contemporary, international, evidence-informed guidance aims to achieve the greatest good for the greatest number of people with familial hypercholesterolaemia (FH) across different countries. FH, a family of monogenic defects in the hepatic LDL clearance pathway, is a preventable cause of premature coronary artery disease and death. Worldwide, 35 million people have FH, but most remain undiagnosed or undertreated. Current FH care is guided by a useful and diverse group of evidence-based guidelines, with some primarily directed at cholesterol management and some that are country-specific. However, none of these guidelines provides a comprehensive overview of FH care that includes both the lifelong components of clinical practice and strategies for implementation. Therefore, a group of international experts systematically developed this guidance to compile clinical strategies from existing evidence-based guidelines for the detection (screening, diagnosis, genetic testing and counselling) and management (risk stratification, treatment of adults or children with heterozygous or homozygous FH, therapy during pregnancy and use of apheresis) of patients with FH, update evidence-informed clinical recommendations, and develop and integrate consensus-based implementation strategies at the patient, provider and health-care system levels, with the aim of maximizing the potential benefit for at-risk patients and their families worldwide.
Collapse
Affiliation(s)
- Gerald F Watts
- School of Medicine, University of Western Australia, Perth, WA, Australia.
- Departments of Cardiology and Internal Medicine, Royal Perth Hospital, Perth, WA, Australia.
| | | | - Robert A Hegele
- Department of Medicine and Robarts Research Institute, Schulich School of Medicine, Western University, London, ON, Canada
| | - Frederick J Raal
- Department of Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Amy C Sturm
- Department of Genomic Health, Geisinger, Danville, PA, USA
- 23andMe, Sunnyvale, CA, USA
| | - Laney K Jones
- Department of Genomic Health, Geisinger, Danville, PA, USA
| | - Mitchell N Sarkies
- School of Health Sciences, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Khalid Al-Rasadi
- Medical Research Centre, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Dirk J Blom
- Division of Lipidology and Cape Heart Institute, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | | | | | | | - Peter Libby
- Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Pedro Mata
- Fundación Hipercolesterolemia Familiar, Madrid, Spain
| | - Hapizah M Nawawi
- Institute of Pathology, Laboratory and Forensic Medicine (I-PPerForM) and Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh, Selangor, Malaysia
- Specialist Lipid and Coronary Risk Prevention Clinics, Hospital Al-Sultan Abdullah (HASA) and Clinical Training Centre, Puncak Alam and Sungai Buloh Campuses, Universiti Teknologi MARA, Sungai Buloh, Selangor, Malaysia
| | - Uma Ramaswami
- Royal Free London NHS Foundation Trust, University College London, London, UK
| | - Kausik K Ray
- Imperial Centre for Cardiovascular Disease Prevention, Imperial College London, London, UK
| | - Claudia Stefanutti
- Department of Molecular Medicine, Extracorporeal Therapeutic Techniques Unit, Lipid Clinic and Atherosclerosis Prevention Centre, Regional Centre for Rare Diseases, Immunohematology and Transfusion Medicine, Umberto I Hospital, 'Sapienza' University of Rome, Rome, Italy
| | - Shizuya Yamashita
- Department of Cardiology, Rinku General Medical Center, Osaka, Japan
| | - Jing Pang
- School of Medicine, University of Western Australia, Perth, WA, Australia
| | | | - Raul D Santos
- Lipid Clinic, Heart Institute (InCor), University of São Paulo, São Paulo, Brazil
- Hospital Israelita Albert Einstein, São Paulo, Brazil
| |
Collapse
|
16
|
Reijman MD, Kusters DM, Groothoff JW, Arbeiter K, Dann EJ, de Boer LM, de Ferranti SD, Gallo A, Greber-Platzer S, Hartz J, Hudgins LC, Ibarretxe D, Kayikcioglu M, Klingel R, Kolovou GD, Oh J, Planken RN, Stefanutti C, Taylan C, Wiegman A, Schmitt CP. Clinical practice recommendations on lipoprotein apheresis for children with homozygous familial hypercholesterolemia: an expert consensus statement from ERKNet and ESPN. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.11.14.23298547. [PMID: 38014132 PMCID: PMC10680892 DOI: 10.1101/2023.11.14.23298547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Homozygous familial hypercholesterolaemia is a life-threatening genetic condition, which causes extremely elevated LDL-C levels and atherosclerotic cardiovascular disease very early in life. It is vital to start effective lipid-lowering treatment from diagnosis onwards. Even with dietary and current multimodal pharmaceutical lipid-lowering therapies, LDL-C treatment goals cannot be achieved in many children. Lipoprotein apheresis is an extracorporeal lipid-lowering treatment, which is well established since three decades, lowering serum LDL-C levels by more than 70% per session. Data on the use of lipoprotein apheresis in children with homozygous familial hypercholesterolaemia mainly consists of case-reports and case-series, precluding strong evidence-based guidelines. We present a consensus statement on lipoprotein apheresis in children based on the current available evidence and opinions from experts in lipoprotein apheresis from over the world. It comprises practical statements regarding the indication, methods, treatment targets and follow-up of lipoprotein apheresis in children with homozygous familial hypercholesterolaemia and on the role of lipoprotein(a) and liver transplantation.
Collapse
Affiliation(s)
- M. Doortje Reijman
- Amsterdam UMC, University of Amsterdam, Department of Paediatrics, Amsterdam Cardiovascular Sciences, Amsterdam Gastroenterology Endocrinology Metabolism, Meibergdreef 9, Amsterdam, Netherlands
| | - D. Meeike Kusters
- Amsterdam UMC, University of Amsterdam, Department of Paediatrics, Amsterdam Cardiovascular Sciences, Amsterdam Gastroenterology Endocrinology Metabolism, Meibergdreef 9, Amsterdam, Netherlands
| | - Jaap W. Groothoff
- Amsterdam UMC, University of Amsterdam, Department of Paediatrics, Amsterdam Cardiovascular Sciences, Amsterdam Gastroenterology Endocrinology Metabolism, Meibergdreef 9, Amsterdam, Netherlands
| | - Klaus Arbeiter
- Division of Paediatric Nephrology and Gastroenterology, Department of Paediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria
| | - Eldad J. Dann
- Blood Bank and apheresis unit Rambam Health care campus, Haifa, Israel
| | - Lotte M. de Boer
- Amsterdam UMC, University of Amsterdam, Department of Paediatrics, Amsterdam Cardiovascular Sciences, Amsterdam Gastroenterology Endocrinology Metabolism, Meibergdreef 9, Amsterdam, Netherlands
| | - Sarah D. de Ferranti
- Department of Cardiology, Boston Children’s Hospital, Boston, MA, USA, Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Antonio Gallo
- Sorbonne Université, INSERM, UMR 1166, Lipidology and cardiovascular prevention Unit, Department of Nutrition, APHP, Hôpital Pitié-Salpêtrière F-75013 Paris, France
| | - Susanne Greber-Platzer
- Clinical Division of Paediatric Pulmonology, Allergology and Endocrinology, Department of Paediatrics and Adolescent Medicine, Medical University Vienna, Vienna, Austria
| | - Jacob Hartz
- Department of Cardiology, Boston Children’s Hospital, Boston, MA, USA, Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Lisa C. Hudgins
- The Rogosin Institute, Weill Cornell Medical College, New York, New York, USA
| | - Daiana Ibarretxe
- Vascular Medicine and Metabolism Unit (UVASMET), Hospital Universitari Sant Joan; Universitat Rovira i Virgili; Institut Investigació Sanitària Pere Virgili (IISPV)-CERCA, Spain; Centro de Investigación Biomédica en Red en Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Spain
| | - Meral Kayikcioglu
- Department of Cardiology, Medical Faculty, Ege University, 35100 Izmir, Turkey
| | - Reinhard Klingel
- Apheresis Research Institute, Stadtwaldguertel 77, 50935 Cologne, Germany (www.apheresis-research.org)
| | - Genovefa D. Kolovou
- Metropolitan Hospital, Department of Preventive Cardiology. 9, Ethn. Makariou & 1, El. Venizelou, N. Faliro, 185 47, Athens, Greece
| | - Jun Oh
- University Medical Center Hamburg/Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - R. Nils Planken
- Department of Radiology and nuclear medicine, Amsterdam UMC, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, Netherlands
- Amsterdam Cardiovascular Sciences, Atherosclerosis & Ischemic Syndromes, Amsterdam, The Netherlands
| | - Claudia Stefanutti
- Department of Molecular Medicine, Lipid Clinic and Atherosclerosis Prevention Centre, ‘Umberto I’ Hospital ‘Sapienza’ University of Rome, I-00161 Rome, Italy
| | - Christina Taylan
- Paediatric Nephrology, Children’s and Adolescents’ Hospital, University Hospital of Cologne, Faculty of Medicine, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
| | - Albert Wiegman
- Amsterdam UMC, University of Amsterdam, Department of Paediatrics, Amsterdam Cardiovascular Sciences, Amsterdam Gastroenterology Endocrinology Metabolism, Meibergdreef 9, Amsterdam, Netherlands
| | - Claus Peter Schmitt
- Pediatric Nephrology, Center for Pediatric and Adolescent Medicine, University of Heidelberg, Germany
| |
Collapse
|
17
|
Diederiks NM, van der Burgt YEM, Ruhaak LR, Cobbaert CM. Developing an SI-traceable Lp(a) reference measurement system: a pilgrimage to selective and accurate apo(a) quantification. Crit Rev Clin Lab Sci 2023; 60:483-501. [PMID: 37128734 DOI: 10.1080/10408363.2023.2199353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 03/14/2023] [Accepted: 04/01/2023] [Indexed: 05/03/2023]
Abstract
In the past decade a remarkable rebirth of serum/plasma lipoprotein(a) (Lp(a)) as an independent risk factor of cardiovascular disease (CVD) occurred. Updated evidence for a causal continuous association in different ethnic groups between Lp(a) concentrations and cardiovascular outcomes has been published in the latest European Atherosclerosis Society (EAS) Lp(a) consensus statement. Interest in measuring Lp(a) at least once in a person's lifetime moreover originates from the development of promising new Lp(a) lowering drugs. Accurate and clinically effective Lp(a) tests are of key importance for the timely detection of high-risk individuals and for future evaluation of the therapeutic effects of Lp(a) lowering medication. To this end, it is necessary to improve the performance and standardization of existing Lp(a) tests, as is also noted in the Lp(a) consensus statement. Consequently, a state-of-the-art internationally endorsed reference measurement system (RMS) must be in place that allows for performance evaluation of Lp(a) field tests in order to certify their validity and accuracy. An ELISA-based RMS from Northwest Lipid Research Laboratory (University of Washington, Seattle, USA) has been available since the 1990s. A next-generation apo(a)/Lp(a) RMS is now being developed by a working group from the International Federation of Clinical Chemistry and Laboratory Medicine (IFCC). The envisioned apo(a) RMS is based on the direct measurement of selected proteotypic fragments generated after proteolytic digestion using quantitative protein mass spectrometry (MS). The choice for an MS-based RMS enables selective measurement of the proteotypic peptides and is by design apo(a) isoform insensitive. Clearly, the equimolar conversion of apo(a) into the surrogate peptide measurands is required to obtain accurate Lp(a) results. The completeness of proteolysis under reaction conditions from the candidate reference measurement procedure (RMP) has been demonstrated for the quantifying apo(a) peptides. Currently, the candidate apo(a) RMP is endorsed by the IFCC and recommendations for suitable secondary reference materials have been made in a recent commutability study paper. Ongoing efforts toward a complete apo(a) RMS that is listed by the Joint Committee on Traceability in Laboratory Medicine (JCTLM) are focused on the peptide-based calibration and the establishment of a network of calibration laboratories running the apo(a) RMS in a harmonized way. Once completed, it will be the holy grail for evaluation and certification of Lp(a) field methods.
Collapse
Affiliation(s)
- Nina M Diederiks
- Department of Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center, Leiden, ZA, The Netherlands
| | - Yuri E M van der Burgt
- Department of Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center, Leiden, ZA, The Netherlands
| | - L Renee Ruhaak
- Department of Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center, Leiden, ZA, The Netherlands
| | - Christa M Cobbaert
- Department of Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center, Leiden, ZA, The Netherlands
| |
Collapse
|
18
|
März W, Scharnagl H, Kleber M, Silbernagel G, Nauck M, Müller-Wieland D, von Eckardstein A. [Laboratory diagnostics of lipid metabolism disorders]. Dtsch Med Wochenschr 2023; 148:e120-e146. [PMID: 37949074 PMCID: PMC10637831 DOI: 10.1055/a-1516-2511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Clinically, disorders of lipid metabolism often remain without symptoms. Typical skin lesions, however, can be indicative. Secondary hyperlipoproteinemias (HLP) are more common than primary hyperlipoproteinemias; they can (partially) be improved by treating the underlying disease. Basic diagnostics consist of the determination of cholesterol, triglycerides, LDL cholesterol and HDL cholesterol. To exclude secondary HLP, glucose, HbA1C, TSH, transaminases, creatinine, urea, protein and protein in the urine are useful. Since virtually all routine methods for LDL-C are biased by high triglycerides, lipoprotein electrophoresis is indicated for triglycerides above 400 mg/dl (4.7 mmol/l). Primary HLPs have known or yet unknown genetic causes. Primary hyperlipidemias should be taken into consideration especially in young patients with an LDL cholesterol concentration are above 190 mg/dl (4.9 mmol/l) and/or triglycerides above 400 mg/dl (10 mmol/l) and secondary HLP (obesity, alcohol, diabetes mellitus, kidney disease) is excluded. The basic diagnostics is meaningfully extended by the measurement of lipoprotein (a) (Lp(a)). It is indicated in moderate and high risk of vascular disease, progression of atherosclerosis in "well-controlled" LDL cholesterol, familial clustering of atherosclerosis or high Lp(a), evidence for elevated Lp(a) coming from lipoprotein electrophoresis, aortic stenosis and in patients in whom statins have a poor effect. Genetic diagnostics needs to be considered if primary HLP is suspected. It is most frequently conducted for suspected familial hypercholesterolemia and has already been recommended in guidelines.
Collapse
Affiliation(s)
- Winfried März
- Korrespondenzadresse Univ. Prof. Dr. med. Winfried März SYNLAB AkademieP5,7D-68167 Mannheim+49/6 21/43 17 94 32+49/6 21/4 31 94 33
| | | | | | | | | | | | | |
Collapse
|
19
|
Ma GS, Chiou TT, Wilkinson MJ. Is Lipoprotein(a) Clinically Actionable with Today's Evidence? The Answer is Yes. Curr Cardiol Rep 2023; 25:1175-1187. [PMID: 37632608 PMCID: PMC10651710 DOI: 10.1007/s11886-023-01937-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/05/2023] [Indexed: 08/28/2023]
Abstract
PURPOSE OF REVIEW Lipoprotein(a) is an independent risk factor for cardiovascular disease. We review the ongoing shifts in consensus guidelines for the testing and management of Lp(a) and provide insight into whether current evidence suggests that awareness and testing of Lp(a) is clinically actionable. RECENT FINDINGS GWAS and Mendelian randomization studies have established causal links between elevated Lp(a) and forms of CVD, including CAD and calcific aortic valve disease. Testing of Lp(a) identifies patients with similar risk to that of heterozygous FH, enhances risk stratification in patients with borderline/intermediate risk as determined through traditional factors, and facilitates the assessment of inherited CVD risk through cascade screening in patients with known family history of elevated Lp(a). Reductions in Lp(a) through non-targeted therapies including PCSK9 inhibition and lipoprotein apheresis have demonstrated reductions in ASCVD risk that are likely attributable to lowering Lp(a). Targeted therapies to potently lower Lp(a) are in clinical development. Lp(a) is actionable, and can be used to identify high risk patients for primary prevention and their family members through cascade screening, and to guide intensification of therapy in primary and secondary prevention of ASCVD.
Collapse
Affiliation(s)
- Gary S Ma
- Division of Cardiovascular Medicine, Department of Medicine, Cardiovascular Institute, UC San Diego Health, Sulpizio Cardiovascular Center, University of California San Diego, 9434 Medical Center Dr, MC 7241, La Jolla, CA, 92037, San Diego, USA
| | - Tommy T Chiou
- Division of Cardiovascular Medicine, Department of Medicine, Cardiovascular Institute, UC San Diego Health, Sulpizio Cardiovascular Center, University of California San Diego, 9434 Medical Center Dr, MC 7241, La Jolla, CA, 92037, San Diego, USA
| | - Michael J Wilkinson
- Division of Cardiovascular Medicine, Department of Medicine, Cardiovascular Institute, UC San Diego Health, Sulpizio Cardiovascular Center, University of California San Diego, 9434 Medical Center Dr, MC 7241, La Jolla, CA, 92037, San Diego, USA.
| |
Collapse
|
20
|
Steg PG, Szarek M, Valgimigli M, Islam S, Zeiher AM, Bhatt DL, Bittner VA, Chiang CE, Diaz R, Goodman SG, Gotcheva N, Harrington RA, Jukema JW, Kim HS, Kim SH, Morais J, Pordy R, Scemama M, White HD, Schwartz GG. Lipoprotein(a) and the Effect of Alirocumab on Revascularization After Acute Coronary Syndrome. Can J Cardiol 2023; 39:1315-1324. [PMID: 37116789 DOI: 10.1016/j.cjca.2023.04.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 04/14/2023] [Accepted: 04/20/2023] [Indexed: 04/30/2023] Open
Abstract
BACKGROUND Many patients require revascularization after index acute coronary syndrome (ACS). Lipoprotein(a) is thought to play a pathogenic role in atherothrombosis. In ODYSSEY OUTCOMES, alirocumab reduced major adverse cardiovascular events after ACS, with greater reduction among those with higher lipoprotein(a) levels. We explored whether risk of revascularization after ACS was modified by the level of lipoprotein(a) and treatment with alirocumab or placebo. METHODS In ODYSSEY OUTCOMES alirocumab was compared with placebo in 18,924 patients with ACS and elevated atherogenic lipoprotein levels despite optimized statin treatment. In this post hoc analysis, treatment effects are summarized using competing risks proportional hazard models. RESULTS A total of 1559 (8.2%) patients had coronary, 204 (1.1%) had limb, and 40 (0.2%) had carotid revascularization. Alirocumab reduced coronary revascularization (2.8 vs 3.2 events per 100 patient-years; hazard ratio [HR], 0.88 [95% confidence interval (CI), 0.80-0.97]; P = 0.01) and any revascularization (3.2 vs 3.7 events per 100 patient-years; HR, 0.85 [95% CI, 0.78-0.94]; P = 0.001). Baseline lipoprotein(a) quartile was directly associated with risk of coronary or any revascularization in the placebo arm and inversely related to treatment HRs (all P for trend < 0.01). Alirocumab produced the greatest reduction of coronary revascularization in patients with baseline lipoprotein(a) in the top quartile (≥ 59.6 mg/dL; HR, 0.69 [95% CI, 0.57-0.84]), but no apparent reduction in the bottom quartile (HR, 1.00 [95% CI, 0.82-1.22]). Findings were similar for the effect of alirocumab on any revascularization. CONCLUSIONS Alirocumab reduced revascularization rates after ACS. The risk of revascularization and reduction in that risk with alirocumab were greatest in patients with elevated lipoprotein(a) at baseline.
Collapse
Affiliation(s)
- P Gabriel Steg
- Department of Cardiology, Université Paris-Cité, INSERM-UMR1148, Assistance Publique-Hôpitaux de Paris, Hôpital Bichat, French Alliance for Cardiovascular Trials, and Institut Universitaire de France, Paris, France.
| | - Michael Szarek
- CPC Clinical Research and Division of Cardiology, University of Colorado School of Medicine, Aurora, Colorado, USA; State University of New York, Downstate Health Sciences University, Brooklyn, New York, USA
| | - Marco Valgimigli
- Division of Cardiology, Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Lugano, Switzerland; Department of Cardiology,University of Bern, Bern, Switzerland
| | - Shahidul Islam
- Division of Health Services Research, NYU Long Island School of Medicine, Mineola, New York, USA
| | - Andreas M Zeiher
- Department of Medicine III, Goethe University, Frankfurt am Main, Germany
| | - Deepak L Bhatt
- Mount Sinai Heart, Icahn School of Medicine at Mount Sinai Health System, New York, New York, USA
| | - Vera A Bittner
- Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Chern-En Chiang
- General Clinical Research Center, Division of Cardiology, Taipei Veterans General Hospital and National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Rafael Diaz
- Estudios Cardiológicos Latinoamérica, Instituto Cardiovascular de Rosario, Rosario, Argentina
| | - Shaun G Goodman
- Department of Medicine, Canadian VIGOUR Centre, University of Alberta, Edmonton, Alberta, Canada; Division of Cardiology, St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Nina Gotcheva
- Department of Cardiology, MHAT "National Cardiology Hospital" EAD, Sofia, Bulgaria
| | - Robert A Harrington
- Stanford Center for Clinical Research, Department of Medicine, Stanford University, Stanford, California, USA
| | - J Wouter Jukema
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands; Netherlands Heart Institute, Utrecht, The Netherlands
| | - Hyo-Soo Kim
- Departmentof Cardiology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Sang-Hyun Kim
- Division of Cardiology, SMG Seoul National University Boramae Medical Center, Seoul, Republic of Korea
| | - Joao Morais
- Division of Cardiology, Leiria Hospital Center, Leiria, Portugal; ciTechCare, Polytechnic of Leiria, Leiria, Portugal
| | - Robert Pordy
- Regeneron Pharmaceuticals Inc, Tarrytown, New York, USA
| | | | - Harvey D White
- Green Lane Cardiovascular Services, Auckland City Hospital and Auckland University, Auckland, New Zealand
| | - Gregory G Schwartz
- Division of Cardiology, University of Colorado School of Medicine, Aurora, Colorado, USA
| |
Collapse
|
21
|
de Boer LM, Wiegman A, Kroon J, Tsimikas S, Yeang C, Peletier MC, Revers A, Kastelein JJP, Zwinderman AH, Hutten BA. Lipoprotein(a) and carotid intima-media thickness in children with familial hypercholesterolaemia in the Netherlands: a 20-year follow-up study. Lancet Diabetes Endocrinol 2023; 11:667-674. [PMID: 37487514 DOI: 10.1016/s2213-8587(23)00156-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/22/2023] [Accepted: 05/22/2023] [Indexed: 07/26/2023]
Abstract
BACKGROUND Elevated lipoprotein(a) and familial hypercholesterolaemia are both independent risk conditions for cardiovascular disease. Although signs of atherosclerosis can be observed in children with familial hypercholesterolaemia, it is unknown whether elevated lipoprotein(a) is an additional risk factor for atherosclerosis in these young patients. Therefore, we aimed to assess the contribution of lipoprotein(a) concentrations to arterial wall thickening (as measured by carotid intima-media thickness) in children with familial hypercholesterolaemia who were followed up into adulthood. METHODS We conducted a 20-year follow-up study of 214 children (aged 8-18 years) with heterozygous familial hypercholesterolaemia who were randomly assigned in a statin trial in Amsterdam (Netherlands) between Dec 7, 1997, and Oct 4, 1999. At baseline, and at 2, 10, and 20 years thereafter, blood samples were taken and carotid intima-media thickness was measured. Linear mixed-effects models were used to evaluate the association between lipoprotein(a) and carotid intima-media thickness during follow-up. We adjusted for sex, age, corrected LDL-cholesterol, statin use, and BMI. FINDINGS Our study population comprised 200 children who had a carotid intima-media thickness measurement and a measured lipoprotein(a) concentration from at least one visit available. Mean age at baseline was 13·0 years (SD 2·9), 106 (53%) children were male, and 94 (47%) were female. At baseline, median lipoprotein(a) concentration was 18·5 nmol/L (IQR 8·7-35·5) and mean carotid intima-media thickness was 0·4465 mm (SD 0·0496). During follow-up, higher lipoprotein(a) concentrations contributed significantly to progression of carotid intima-media thickness (β adjusted 0·0073 mm per 50 nmol/L increase in lipoprotein(a) [95% CI 0·0013-0·0132]; p=0·017). INTERPRETATION Our findings suggest that lipoprotein(a) concentrations contribute significantly to arterial wall thickening in children with familial hypercholesterolaemia who were followed-up until adulthood, suggesting that lipoprotein(a) is an independent and additional risk factor for early atherosclerosis in those already at increased risk. Lipoprotein(a) measurement in young patients with familial hypercholesterolaemia is crucial to identify those at potentially highest risk for cardiovascular disease. FUNDING Silence Therapeutics.
Collapse
Affiliation(s)
- Lotte M de Boer
- Department of Epidemiology and Data Science, Amsterdam UMC-University of Amsterdam, Amsterdam, Netherlands; Department of Pediatrics, Amsterdam UMC-University of Amsterdam, Amsterdam, Netherlands
| | - Albert Wiegman
- Department of Pediatrics, Amsterdam UMC-University of Amsterdam, Amsterdam, Netherlands; Diabetes and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, Netherlands
| | - Jeffrey Kroon
- Department of Experimental Vascular Medicine, Amsterdam UMC-University of Amsterdam, Amsterdam, Netherlands; Atherosclerosis and Ischemic Syndromes, Amsterdam Cardiovascular Sciences, Amsterdam, Netherlands; Laboratory of Angiogenesis and Vascular Metabolism, VIB-KU Leuven Center for Cancer Biology, VIB, Leuven, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven and Leuven Cancer Institute, Leuven, Belgium
| | - Sotirios Tsimikas
- University of California San Diego, Sulpizio Cardiovascular Center, La Jolla, CA, USA
| | - Calvin Yeang
- University of California San Diego, Sulpizio Cardiovascular Center, La Jolla, CA, USA
| | - Merel C Peletier
- Department of Experimental Vascular Medicine, Amsterdam UMC-University of Amsterdam, Amsterdam, Netherlands; Atherosclerosis and Ischemic Syndromes, Amsterdam Cardiovascular Sciences, Amsterdam, Netherlands
| | - Alma Revers
- Department of Experimental Vascular Medicine, Amsterdam UMC-University of Amsterdam, Amsterdam, Netherlands
| | - John J P Kastelein
- Department of Vascular Medicine, Amsterdam UMC-University of Amsterdam, Amsterdam, Netherlands; Atherosclerosis and Ischemic Syndromes, Amsterdam Cardiovascular Sciences, Amsterdam, Netherlands
| | - Aeilko H Zwinderman
- Department of Epidemiology and Data Science, Amsterdam UMC-University of Amsterdam, Amsterdam, Netherlands; Methodology, Amsterdam Public Health, Amsterdam, Netherlands
| | - Barbara A Hutten
- Department of Epidemiology and Data Science, Amsterdam UMC-University of Amsterdam, Amsterdam, Netherlands; Diabetes and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, Netherlands.
| |
Collapse
|
22
|
Nurmohamed NS, Moriarty PM, Stroes ESG. Considerations for routinely testing for high lipoprotein(a). Curr Opin Lipidol 2023; 34:174-179. [PMID: 35942815 PMCID: PMC10328534 DOI: 10.1097/mol.0000000000000838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW Lipoprotein (a) [Lp(a)] is a likely causal risk factor for atherosclerotic cardiovascular disease (ASCVD) and aortic valve disease, confirmed by Mendelian randomization. With reliable assays, it has been established that Lp(a) is linearly associated with ASCVD. Current low-density lipoprotein cholesterol (LDL-C) lowering therapies do not or minimally lower Lp(a). This review focuses on the clinical importance and therapeutic consequences of Lp(a) measurement. RECENT FINDINGS Development of RNA-based Lp(a) lowering therapeutics has positioned Lp(a) as one of the principal residual risk factors to target in the battle against lipid-driven ASCVD risk. Pelacarsen, which is a liver-specific antisense oligonucleotide, has shown Lp(a) reductions up to 90% and its phase 3 trial is currently underway. Olpasiran is a small interfering RNA targeting LPA messenger RNA, which is being investigated in phase 2 and has already shown dose-dependent Lp(a) reductions up to 90%. SUMMARY Lp(a) should be measured in every patient at least once to identify patients with very high Lp(a) levels. These patients could benefit from Lp(a) lowering therapies when approved. In the meantime, therapy in high Lp(a) patients should focus on further reducing LDL-C and other ASCVD risk factors.
Collapse
Affiliation(s)
- Nick S Nurmohamed
- Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, The Netherlands
- Department of Cardiology, Amsterdam UMC, Vrije Universiteit, Amsterdam, The Netherlands
| | - Patrick M Moriarty
- Atherosclerosis and Lipid-apheresis Center, University of Kansas Medical Center, Kansas City, KS, USA
| | - Erik SG Stroes
- Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, The Netherlands
| |
Collapse
|
23
|
Law HG, Meyers FJ, Berglund L, Enkhmaa B. Lipoprotein(a) and diet-a challenge for a role of saturated fat in cardiovascular disease risk reduction? Am J Clin Nutr 2023; 118:23-26. [PMID: 37178716 PMCID: PMC10447465 DOI: 10.1016/j.ajcnut.2023.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 05/01/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023] Open
Abstract
In this perspective, we discuss new evidence relating to current dietary recommendations to reduce SFA intake to modulate an individual's global risk of CVD. Although it is well established that lowering dietary SFA intake has a beneficial effect on LDL cholesterol concentrations, findings increasingly indicate an opposite effect on lipoprotein(a) [Lp(a)] concentrations. In recent years, many studies have firmly established a role for an elevated Lp(a) concentration as a genetically regulated, causal, and prevalent risk factor for CVD. However, there is less awareness of the effect of dietary SFA intake on Lp(a) concentrations. This study discusses this issue and highlights the contrasting effect of reducing dietary SFA intake on LDL cholesterol and Lp(a), 2 highly atherogenic lipoproteins. This calls attention to the need for precision nutrition approaches that move beyond a "one-size-fits-all" approach. To illustrate the contrast, we describe the dynamic contributions of Lp(a) and LDL cholesterol concentrations to CVD risk during interventions with a low-SFA diet, with the hope that this will stimulate further studies and discussions regarding dietary management of CVD risk.
Collapse
Affiliation(s)
- Hayley G Law
- Department of Internal Medicine, School of Medicine, University of California Davis, Sacramento, CA, United States
| | - Frederick J Meyers
- Department of Internal Medicine, School of Medicine, University of California Davis, Sacramento, CA, United States; Center for Precision Medicine and Data Sciences, School of Medicine, University of California Davis, Sacramento, CA, United States
| | - Lars Berglund
- Department of Internal Medicine, School of Medicine, University of California Davis, Sacramento, CA, United States
| | - Byambaa Enkhmaa
- Department of Internal Medicine, School of Medicine, University of California Davis, Sacramento, CA, United States; Center for Precision Medicine and Data Sciences, School of Medicine, University of California Davis, Sacramento, CA, United States.
| |
Collapse
|
24
|
Kronenberg F, Mora S, Stroes ESG, Ference BA, Arsenault BJ, Berglund L, Dweck MR, Koschinsky ML, Lambert G, Mach F, McNeal CJ, Moriarty PM, Natarajan P, Nordestgaard BG, Parhofer KG, Virani SS, von Eckardstein A, Watts GF, Stock JK, Ray KK, Tokgözoğlu LS, Catapano AL. Frequent questions and responses on the 2022 lipoprotein(a) consensus statement of the European Atherosclerosis Society. Atherosclerosis 2023; 374:107-120. [PMID: 37188555 DOI: 10.1016/j.atherosclerosis.2023.04.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/17/2023]
Abstract
In 2022, the European Atherosclerosis Society (EAS) published a new consensus statement on lipoprotein(a) [Lp(a)], summarizing current knowledge about its causal association with atherosclerotic cardiovascular disease (ASCVD) and aortic stenosis. One of the novelties of this statement is a new risk calculator showing how Lp(a) influences lifetime risk for ASCVD and that global risk may be underestimated substantially in individuals with high or very high Lp(a) concentration. The statement also provides practical advice on how knowledge about Lp(a) concentration can be used to modulate risk factor management, given that specific and highly effective mRNA-targeted Lp(a)-lowering therapies are still in clinical development. This advice counters the attitude: "Why should I measure Lp(a) if I can't lower it?". Subsequent to publication, questions have arisen relating to how the recommendations of this statement impact everyday clinical practice and ASCVD management. This review addresses 30 of the most frequently asked questions about Lp(a) epidemiology, its contribution to cardiovascular risk, Lp(a) measurement, risk factor management and existing therapeutic options.
Collapse
Affiliation(s)
- Florian Kronenberg
- Institute of Genetic Epidemiology, Medical University of Innsbruck, Innsbruck, Austria.
| | - Samia Mora
- Center for Lipid Metabolomics, Division of Preventive Medicine, and Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Erik S G Stroes
- Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Brian A Ference
- Centre for Naturally Randomized Trials, University of Cambridge, Cambridge, UK
| | - Benoit J Arsenault
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, and Department of Medicine, Faculty of Medicine, Université Laval, Québec City, QC, Canada
| | - Lars Berglund
- Department of Internal Medicine, School of Medicine, University of California-Davis, Davis, CA, USA
| | - Marc R Dweck
- British Heart Foundation Centre for Cardiovascular Science, Edinburgh Heart Centre, University of Edinburgh, Chancellors Building, Little France Crescent, Edinburgh, EH16 4SB, UK
| | - Marlys L Koschinsky
- Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Gilles Lambert
- Inserm, UMR 1188 Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, 97400, Saint-Pierre, La Réunion, France
| | - François Mach
- Department of Cardiology, Geneva University Hospital, Geneva, Switzerland
| | - Catherine J McNeal
- Division of Cardiology, Department of Internal Medicine Baylor Scott & White Health, 2301 S. 31st St., Temple, TX, 76508, USA
| | - Patrick M Moriarty
- Atherosclerosis and Lipoprotein-apheresis Clinic, University of Kansas Medical Center, Kansas City, KS, USA
| | - Pradeep Natarajan
- Cardiovascular Research Center and Center for Genomic Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; and Program in Medical and Population Genetics and Cardiovascular Disease Initiative, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Børge G Nordestgaard
- Department of Clinical Biochemistry and the Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev and Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Klaus G Parhofer
- Medizinische Klinik und Poliklinik IV, Ludwig-Maximilians University Klinikum, Munich, Germany
| | - Salim S Virani
- The Aga Khan University, Karachi, Pakistan; Texas Heart Institute, Baylor College of Medicine, Houston, TX, USA
| | - Arnold von Eckardstein
- Institute of Clinical Chemistry, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Gerald F Watts
- Medical School, University of Western Australia, and Department of Cardiology, Lipid Disorders Clinic, Royal Perth Hospital, Perth, Australia
| | - Jane K Stock
- European Atherosclerosis Society, Mässans Gata 10, SE-412 51, Gothenburg, Sweden
| | - Kausik K Ray
- Imperial Centre for Cardiovascular Disease Prevention, Department of Primary Care and Public Health, School of Public Health, Imperial College London, London, UK
| | - Lale S Tokgözoğlu
- Department of Cardiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Alberico L Catapano
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, and IRCCS MultiMedica, Milan, Italy
| |
Collapse
|
25
|
Olmastroni E, Gazzotti M, Averna M, Arca M, Tarugi P, Calandra S, Bertolini S, Catapano AL, Casula M. Lipoprotein(a) Genotype Influences the Clinical Diagnosis of Familial Hypercholesterolemia. J Am Heart Assoc 2023; 12:e029223. [PMID: 37183858 DOI: 10.1161/jaha.122.029223] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Background Evidence suggests that LPA risk genotypes are a possible contributor to the clinical diagnosis of familial hypercholesterolemia (FH). This study aimed at determining the prevalence of LPA risk variants in adult individuals with FH enrolled in the Italian LIPIGEN (Lipid Transport Disorders Italian Genetic Network) study, with (FH/M+) or without (FH/M-) a causative genetic variant. Methods and Results An lp(a) [lipoprotein(a)] genetic score was calculated by summing the number risk-increasing alleles inherited at rs3798220 and rs10455872 variants. Overall, in the 4.6% of 1695 patients with clinically diagnosed FH, the phenotype was not explained by a monogenic or polygenic cause but by genotype associated with high lp(a) levels. Among 765 subjects with FH/M- and 930 subjects with FH/M+, 133 (17.4%) and 95 (10.2%) were characterized by 1 copy of either rs10455872 or rs3798220 or 2 copies of either rs10455872 or rs3798220 (lp(a) score ≥1). Subjects with FH/M- also had lower mean levels of pretreatment low-density lipoprotein cholesterol than individuals with FH/M+ (t test for difference in means between FH/M- and FH/M+ groups <0.0001); however, subjects with FH/M- and lp(a) score ≥1 had higher mean (SD) pretreatment low-density lipoprotein cholesterol levels (223.47 [50.40] mg/dL) compared with subjects with FH/M- and lp(a) score=0 (219.38 [54.54] mg/dL for), although not statistically significant. The adjustment of low-density lipoprotein cholesterol levels based on lp(a) concentration reduced from 68% to 42% the proportion of subjects with low-density lipoprotein cholesterol level ≥190 mg/dL (or from 68% to 50%, considering a more conservative formula). Conclusions Our study supports the importance of measuring lp(a) to perform the diagnosis of FH appropriately and to exclude that the observed phenotype is driven by elevated levels of lp(a) before performing the genetic test for FH.
Collapse
Affiliation(s)
- Elena Olmastroni
- Department of Pharmacological and Biomolecular Sciences, Epidemiology and Preventive Pharmacology Service (SEFAP) University of Milan Italy
| | | | - Maurizio Averna
- Department ProMISE (Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties) University of Palermo Italy
| | - Marcello Arca
- Department of Translational and Precision Medicine Sapienza University of Rome Italy
| | - Patrizia Tarugi
- Department of Life Sciences University of Modena and Reggio Emilia Italy
| | - Sebastiano Calandra
- Department of Biomedical, Metabolic and Neural Sciences University of Modena and Reggio Emilia Italy
| | | | - Alberico L Catapano
- Department of Pharmacological and Biomolecular Sciences, Epidemiology and Preventive Pharmacology Service (SEFAP) University of Milan Italy
- IRCCS MultiMedica Sesto San Giovanni (MI) Italy
| | - Manuela Casula
- Department of Pharmacological and Biomolecular Sciences, Epidemiology and Preventive Pharmacology Service (SEFAP) University of Milan Italy
- IRCCS MultiMedica Sesto San Giovanni (MI) Italy
| |
Collapse
|
26
|
Nartea R, Mitoiu BI, Ghiorghiu I. The Link between Magnesium Supplements and Statin Medication in Dyslipidemic Patients. Curr Issues Mol Biol 2023; 45:3146-3167. [PMID: 37185729 PMCID: PMC10136538 DOI: 10.3390/cimb45040205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/15/2023] [Accepted: 03/16/2023] [Indexed: 05/17/2023] Open
Abstract
Many investigations have discovered a connection between statins and magnesium supplements. On one hand, increasing research suggests that chronic hypomagnesemia may be an important factor in the etiology of some metabolic illnesses, including obesity and overweight, insulin resistance and type 2 diabetes mellitus, hypertension, alterations in lipid metabolism, and low-grade inflammation. Chronic metabolic problems seem to be prevented by a high Mg intake combined with diet and/or supplements. On the other hand, it is known that statins lower the frequency of cardiac events, stroke, and mortality, not by lowering LDL-C, but by the capacity to reduce mevalonate formation. That will enhance endothelial function, inhibit vascular smooth muscle cell proliferation and migration and encourage macrophages to promote plaque stability and regression while reducing inflammation. Taking these factors into consideration, we did an extensive analysis of the relevant literature, comparing the effects of Mg2 and statin medications on lipoproteins and, implicitly, on the key enzymes involved in cholesterol metabolism.
Collapse
Affiliation(s)
- Roxana Nartea
- Clinical Department 9, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania
- National Institute for Rehabilitation, Physical Medicine and Balneoclimatology, 030079 Bucharest, Romania
| | - Brindusa Ilinca Mitoiu
- Clinical Department 9, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Agrippa Ionescu Clinical Emergency Hospital, 077016 Bucharest, Romania
| | - Ioana Ghiorghiu
- Clinical Department 9, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania
- National Institute for Rehabilitation, Physical Medicine and Balneoclimatology, 030079 Bucharest, Romania
| |
Collapse
|
27
|
Thayabaran D, Tsui APT, Ebmeier S, Cegla J, David A, Jones B. The effect of adjusting LDL-cholesterol for Lp(a)-cholesterol on the diagnosis of familial hypercholesterolaemia. J Clin Lipidol 2023; 17:244-254. [PMID: 36870882 DOI: 10.1016/j.jacl.2023.01.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 01/27/2023]
Abstract
BACKGROUND Familial hypercholesterolaemia (FH) diagnostic tools help prioritise patients for genetic testing and include LDL-C estimates commonly calculated using the Friedewald equation. However, cholesterol contributions from lipoprotein(a) (Lp(a)) can overestimate 'true' LDL-C, leading to potentially inappropriate clinical FH diagnosis. OBJECTIVE To assess how adjusting LDL-C for Lp(a)-cholesterol affects FH diagnoses using Simon Broome (SB) and Dutch Lipid Clinic Network (DLCN) criteria. METHODS Adults referred to a tertiary lipid clinic in London, UK were included if they had undergone FH genetic testing based on SB or DLCN criteria. LDL-C was adjusted for Lp(a)-cholesterol using estimated cholesterol contents of 17.3%, 30% and 45%, and the effects of these adjustments on reclassification to 'unlikely' FH and diagnostic accuracy were determined. RESULTS Depending on the estimated cholesterol content applied, LDL-C adjustment reclassified 8-23% and 6-17% of patients to 'unlikely' FH using SB and DLCN criteria, respectively. The highest reclassification rates were observed following 45% adjustment in mutation-negative patients with higher Lp(a) levels. This led to an improvement in diagnostic accuracy (46% to 57% with SB, and 32% to 44% with DLCN following 45% adjustment) through increased specificity. However all adjustment factors led to erroneous reclassification of mutation-positive patients to 'unlikely' FH. CONCLUSION LDL-C adjustment for Lp(a)-cholesterol improves the accuracy of clinical FH diagnostic tools. Adopting this approach would reduce unnecessary genetic testing but also incorrectly reclassify mutation-positive patients. Health economic analysis is needed to balance the risks of over- and under-diagnosis before LDL-C adjustments for Lp(a) can be recommended.
Collapse
Affiliation(s)
- Darmiga Thayabaran
- Imperial College Healthcare NHS Trust, London, UK (Drs Thayabaran, Cegla, David and Jones)
| | | | - Stefan Ebmeier
- Department of Infectious Diseases, Imperial College London, London, UK (Dr Ebmeier)
| | - Jaimini Cegla
- Imperial College Healthcare NHS Trust, London, UK (Drs Thayabaran, Cegla, David and Jones); Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK (Drs Cegla and Jones)
| | - Alessia David
- Imperial College Healthcare NHS Trust, London, UK (Drs Thayabaran, Cegla, David and Jones); Department of Life Sciences, Imperial College London, London, UK (Dr David)
| | - Ben Jones
- Imperial College Healthcare NHS Trust, London, UK (Drs Thayabaran, Cegla, David and Jones); Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK (Drs Cegla and Jones).
| |
Collapse
|
28
|
Raitakari O, Kartiosuo N, Pahkala K, Hutri-Kähönen N, Bazzano LA, Chen W, Urbina EM, Jacobs DR, Sinaiko A, Steinberger J, Burns T, Daniels SR, Venn A, Woo JG, Dwyer T, Juonala M, Viikari J. Lipoprotein(a) in Youth and Prediction of Major Cardiovascular Outcomes in Adulthood. Circulation 2023; 147:23-31. [PMID: 36440577 PMCID: PMC9797445 DOI: 10.1161/circulationaha.122.060667] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 10/17/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Elevated lipoprotein(a) [Lp(a)] is a common risk factor for cardiovascular disease outcomes with unknown mechanisms. We examined its potential role in identifying youths who are at increased risk of developing adult atherosclerotic cardiovascular disease (ASCVD). METHODS Lp(a) levels measured in youth 9 to 24 years of age were linked to adult ASCVD and carotid intima-media thickness in the YFS (Cardiovascular Risk in Young Finns Study), in which 95 of the original 3596 participants (2.7%) recruited as children have been diagnosed with ASCVD at a median of 47 years of age. Results observed in YFS were replicated with the use of data for White participants from the BHS (Bogalusa Heart Study). In BHS, 587 White individuals had data on youth Lp(a) (measured at 8-17 years of age) and information on adult events, including 15 cases and 572 noncases. Analyses were performed with the use of Cox proportional hazard regression. RESULTS In YFS, those who had been exposed to high Lp(a) level in youth [defined as Lp(a) ≥30 mg/dL] had ≈2 times greater risk of developing adult ASCVD compared with nonexposed individuals (hazard ratio, 2.0 [95% CI, 1.4-2.6]). Youth risk factors, including Lp(a), low-density lipoprotein cholesterol, body mass index, and smoking, were all independently associated with higher risk. In BHS, in an age- and sex-adjusted model, White individuals who had been exposed to high Lp(a) had 2.5 times greater risk (95% CI, 0.9-6.8) of developing adult ASCVD compared with nonexposed individuals. When also adjusted for low-density lipoprotein cholesterol and body mass index, the risk associated with high Lp(a) remained unchanged (hazard ratio, 2.4 [95% CI, 0.8-7.3]). In a multivariable model for pooled data, individuals exposed to high Lp(a) had 2.0 times greater risk (95% CI, 1.0-3.7) of developing adult ASCVD compared with nonexposed individuals. No association was detected between youth Lp(a) and adult carotid artery thickness in either cohort or pooled data. CONCLUSIONS Elevated Lp(a) level identified in youth is a risk factor for adult atherosclerotic cardiovascular outcomes but not for increased carotid intima-media thickness.
Collapse
Affiliation(s)
- Olli Raitakari
- Centre for Population Health Research, University of Turku and Turku University Hospital, Finland (O.R., N.K., K.P.)
- Research Centre of Applied and Preventive Cardiovascular Medicine (O.R., N.K., K.P.), University of Turku, Finland
- Department of Clinical Physiology and Nuclear Medicine (O.R.), Turku University Hospital, Finland
| | - Noora Kartiosuo
- Centre for Population Health Research, University of Turku and Turku University Hospital, Finland (O.R., N.K., K.P.)
- Research Centre of Applied and Preventive Cardiovascular Medicine (O.R., N.K., K.P.), University of Turku, Finland
| | - Katja Pahkala
- Centre for Population Health Research, University of Turku and Turku University Hospital, Finland (O.R., N.K., K.P.)
- Research Centre of Applied and Preventive Cardiovascular Medicine (O.R., N.K., K.P.), University of Turku, Finland
- Paavo Nurmi Centre and Unit for Health and Physical Activity (K.P.), University of Turku, Finland
| | - Nina Hutri-Kähönen
- Tampere Centre for Skills Training and Simulation, Tampere University, Finland (N.H.-K.)
| | - Lydia A Bazzano
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA (L.A.B., W.C.)
| | - Wei Chen
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA (L.A.B., W.C.)
| | - Elaine M Urbina
- Department of Pediatrics, University of Cincinnati College of Medicine, OH (E.M.U., J.G.W.)
- The Heart Institute (E.M.U.), Cincinnati Children's Hospital Medical Center, OH
| | - David R Jacobs
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis (D.R.J.)
| | - Alan Sinaiko
- Department of Pediatrics, University of Minnesota Medical School, Minneapolis (A.S., J.S.)
| | - Julia Steinberger
- Department of Pediatrics, University of Minnesota Medical School, Minneapolis (A.S., J.S.)
| | - Trudy Burns
- Department of Medicine (M.J., J.V.), University of Turku, Finland
| | - Stephen R Daniels
- Department of Pediatrics, University of Colorado School of Medicine, Aurora (S.R.D.)
- Children's Hospital Colorado, Anschutz Medical Campus, Aurora (S.R.D.)
| | - Alison Venn
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia (A.V., T.D.)
| | - Jessica G Woo
- Department of Pediatrics, University of Cincinnati College of Medicine, OH (E.M.U., J.G.W.)
- Division of Biostatistics and Epidemiology (J.G.W.), Cincinnati Children's Hospital Medical Center, OH
| | - Terry Dwyer
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia (A.V., T.D.)
- Heart Research Group, Murdoch Children's Research Institute, Melbourne, Australia (T.D.)
- Nuffield Department of Women's & Reproductive Health, University of Oxford, United Kingdom (T.D.)
| | - Markus Juonala
- Department of Medicine (M.J., J.V.), University of Turku, Finland
- Division of Medicine (M.J., J.V.), Turku University Hospital, Finland
| | - Jorma Viikari
- Department of Medicine (M.J., J.V.), University of Turku, Finland
| |
Collapse
|
29
|
Efficacy and safety of pelacarsen in lowering Lp(a) in healthy Japanese subjects. J Clin Lipidol 2023; 17:181-188. [PMID: 36529659 DOI: 10.1016/j.jacl.2022.12.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 11/25/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND Pelacarsen is a liver-targeted antisense oligonucleotide that potently lowers lipoprotein(a) [Lp(a)] levels. Its safety and efficacy in diverse populations has not been extensively studied. OBJECTIVE To assess the effect of pelacarsen, including monthly dosing of 80 mg, in subjects of Japanese ancestry. METHODS A randomized double-blind, placebo-controlled, study was performed in 29 healthy Japanese subjects treated with single ascending doses (SAD) of pelacarsen 20, 40 and 80 mg subcutaneously or multiple doses (MD) of pelacarsen 80 mg monthly for 4 doses. The primary objective was to assess the safety and tolerability in healthy Japanese subjects; secondary objectives to assess the pharmacokinetics of pelacarsen; and exploratory objective to determine the effect of pelacarsen on plasma Lp(a) levels. RESULTS No serious adverse events or clinically relevant abnormalities in any laboratory parameters were noted. In the MD cohort, mean plasma concentrations of pelacarsen peaked at ∼4 hours and declined in a bi-exponential manner thereafter. In the SAD cohorts, the placebo-corrected least-square mean (PCLSM) percent changes in Lp(a) at Day 30 were: -55.4% (p=0.0008), -58.9% (p=0.0003) and -73.7% (p<0.0001) for the 20 mg, 40 mg, and 80 mg pelacarsen-treated groups, respectively. In the MD cohort, the PCLSM at Days 29, 85, 113, 176 and 204 were -84.0% (p=0.0003), -106.2% (p<0.0001), -70.0 (p<0.0001), -80.0% (p=0.0104) and -55.8% (p=0.0707), respectively. CONCLUSIONS Pelacarsen demonstrates an acceptable safety and tolerability profile and potently lowers plasma levels of Lp(a) in healthy Japanese subjects, including with the 80 mg monthly dose being evaluated in the Lp(a) HORIZON trial.
Collapse
|
30
|
Tromp TR, Ibrahim S, Nurmohamed NS, Peter J, Zuurbier L, Defesche JC, Reeskamp LF, Hovingh GK, Stroes ESG. Use of Lipoprotein(a) to improve diagnosis and management in clinical familial hypercholesterolemia. Atherosclerosis 2023; 365:27-33. [PMID: 36473758 DOI: 10.1016/j.atherosclerosis.2022.11.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/08/2022] [Accepted: 11/24/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND AIMS Lipoprotein(a) (Lp(a)) is an LDL-like particle whose plasma levels are largely genetically determined. The impact of measuring Lp(a) in patients with clinical familial hypercholesterolemia (FH) referred for genetic testing is largely unknown. We set out to evaluate the contribution of (genetically estimated) Lp(a) in a large nation-wide referral population of clinical FH. METHODS In 1504 patients referred for FH genotyping, we used an LPA genetic instrument (rs10455872 and rs3798220) as a proxy for plasma Lp(a) levels. The genetic Lp(a) proxy was used to correct LDL-cholesterol and reclassify patients with clinical FH based on Dutch Lipid Criteria Network (DLCN) scoring. Finally, we used estimated Lp(a) levels to reclassify ASCVD risk using the SCORE and SMART risk scores. RESULTS LPA SNPs were more prevalent among mutation-negative compared with mutation-positive patients (296/1280 (23.1%) vs 35/224 (15.6%), p = 0.016). Among patients with genetically defined high Lp(a) levels, 9% were reclassified to the DLCN category 'unlikely FH' using Lp(a)-corrected LDL-cholesterol (LDL-Ccor) and all but one of these patients indeed carried no FH variant. Furthermore, elevated Lp(a) reclassified predicted ASCVD risk into a higher category in up to 18% of patients. CONCLUSIONS In patients referred for FH molecular testing, we show that taking into account (genetically estimated) Lp(a) levels not only results in reclassification of probability of genetic FH, but also has an impact on individual cardiovascular risk evaluation. However, to avoid missing the diagnosis of an FH variant, clear thresholds for the use of Lp(a)-cholesterol adjusted LDL-cholesterol levels in patients referred for genetic testing of FH must be established.
Collapse
Affiliation(s)
- Tycho R Tromp
- Department of Vascular Medicine, Amsterdam UMC, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands
| | - Shirin Ibrahim
- Department of Vascular Medicine, Amsterdam UMC, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands
| | - Nick S Nurmohamed
- Department of Vascular Medicine, Amsterdam UMC, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands; Department of Cardiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Boelelaan 1117, 1081 HV, Amsterdam, the Netherlands
| | - Jorge Peter
- Department of Experimental Vascular Medicine, Amsterdam UMC, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands
| | - Linda Zuurbier
- Department of Human Genetics, Amsterdam UMC, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands
| | - Joep C Defesche
- Department of Human Genetics, Amsterdam UMC, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands
| | - Laurens F Reeskamp
- Department of Vascular Medicine, Amsterdam UMC, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands; Department of Internal Medicine, OLVG Oost, Amsterdam, the Netherlands
| | - G Kees Hovingh
- Department of Vascular Medicine, Amsterdam UMC, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands; Novo Nordisk A/S, Copenhagen, Denmark
| | - Erik S G Stroes
- Department of Vascular Medicine, Amsterdam UMC, Location AMC, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands.
| |
Collapse
|
31
|
Nestel P, Loh WJ, Ward NC, Watts GF. New Horizons: Revival of Lipoprotein (a) as a Risk Factor for Cardiovascular Disease. J Clin Endocrinol Metab 2022; 107:e4281-e4294. [PMID: 36108076 DOI: 10.1210/clinem/dgac541] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Indexed: 02/13/2023]
Abstract
The status of lipoprotein (a) [Lp(a)] as a cardiovascular risk factor has been resurrected by advances in genetics. Mendelian randomization studies show a causal link of Lp(a) with coronary artery disease (CAD), peripheral artery disease (PAD), and calcific aortic valve stenosis (CAVS). The genetics of Lp(a) is complex and extends beyond the kringle-IV type 2, as it is also dependent on ancestry. The plasma concentration of Lp(a) is determined by the hepatic production of apolipoprotein(a) [apo(a)] component of Lp(a), supporting the use of nucleic acids that inhibit the messenger RNA (mRNA) gene transcript for apo(a). Analytical barriers to measurement of Lp(a) are being addressed using isoform independent assays and a traceable standard. The association of Lp(a) and atherosclerotic cardiovascular disease is higher for myocardial infarction than PAD and CAVS. Increased risk of type 2 diabetes mellitus associated with low Lp(a) levels is perplexing and requires further investigation. The greatest advancement in Lp(a)-lowering therapies is based on using RNA therapeutics that are now being investigated in clinical trials. Proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibition lowers Lp(a) modestly, but whether cardiovascular benefit is independent of low-density lipoprotein lowering remains unclear. Opportunistic and selective testing for Lp(a) is supported by moderate evidence, with the case for universal screening premature. Modification of behavioral and clinical risk factors may be targeted to mitigate Lp(a)-mediated risk of cardiovascular disease. Clinical practice guidelines have been developed to address gaps in care of high Lp(a), but full implementation awaits the findings of clinical outcome trials using RNA-directed therapies currently underway.
Collapse
Affiliation(s)
- Paul Nestel
- Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Wann Jia Loh
- School of Medicine, University of Western Australia, Perth, Australia
- Department of Cardiology and Internal Medicine, Royal Perth Hospital, Perth, Australia
- Department of Endocrinology, Changi General Hospital, Singapore
- Duke-NUS Medical School, Singapore
| | - Natalie C Ward
- School of Medicine, University of Western Australia, Perth, Australia
| | - Gerald F Watts
- School of Medicine, University of Western Australia, Perth, Australia
- Department of Cardiology and Internal Medicine, Royal Perth Hospital, Perth, Australia
| |
Collapse
|
32
|
Reuser A, Koenig W, Laufs U. Lipoprotein(a). Dtsch Med Wochenschr 2022; 147:1564-1570. [PMID: 36323326 PMCID: PMC9668486 DOI: 10.1055/a-1516-2701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
33
|
Navarro A, Cabezas-Agrícola JM, Hermida FJ. Effect of lipoprotein (a) on the analytical determination of low-density lipoprotein cholesterol (LDLc) and its influence on pharmacological treatment with atorvastatin. Scand J Clin Lab Invest 2022; 82:513-517. [PMID: 36200772 DOI: 10.1080/00365513.2022.2128862] [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: 01/05/2023]
Abstract
Lipoprotein(a) (Lp(a)) and Low-density lipoprotein cholesterol (LDLc) is an important risk factor for atherosclerotic cardiovascular disease. The objective of this study was to determine the impact of Lp(a) concentration both on the indirect analytical measurement of LDLc and on the efficacy of dyslipidaemia treatment using the atorvastatin statin. Two retrospective studies were conducted, one with 340 patients and another with 107 patients treated with atorvastatin. Lp(a) concentrations were measured by turbidimetry with an assay independent of the size of the apo(a) isoform. LDLc was calculated using the Friedewald equation and the corrected LDLc was calculated using the Dahlén equation. A strong positive correlation was observed between the serum Lp(a) concentration and the LDLc-overestimation percentage (r = 0.960, p < .001). It was also observed that as the Lp(a) concentration rose there was no significant variation in the percentage decrease in corrected LDLc during atorvastatin treatment (r = 0.186, p > .05). The concentration of LDLc obtained by using the Friedewald equation included Lp(a) cholesterol. The lowering of LDLc in patients treated with atorvastatin depended solely on accessible LDL cholesterol and not on Lp(a) cholesterol.
Collapse
Affiliation(s)
- Aida Navarro
- Servicio de Análisis Clínicos, Hospital Clínico Universitario de Santiago de Compostela, C/Choupana s/n, A Coruña, Spain
| | - José Manuel Cabezas-Agrícola
- Servicio de Endocrinología y Nutrición, Hospital Clínico Universitario de Santiago de Compostela, C/Choupana s/n, A Coruña, Spain
| | - Fernando Jesús Hermida
- Servicio de Análisis Clínicos, Hospital Clínico Universitario de Santiago de Compostela, C/Choupana s/n, A Coruña, Spain
| |
Collapse
|
34
|
Bhatia HS, Wilkinson MJ. Lipoprotein(a): Evidence for Role as a Causal Risk Factor in Cardiovascular Disease and Emerging Therapies. J Clin Med 2022; 11:6040. [PMID: 36294361 PMCID: PMC9604626 DOI: 10.3390/jcm11206040] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/20/2022] [Accepted: 10/07/2022] [Indexed: 08/03/2023] Open
Abstract
Lipoprotein(a) (Lp(a)) is an established risk factor for multiple cardiovascular diseases. Several lines of evidence including mechanistic, epidemiologic, and genetic studies support the role of Lp(a) as a causal risk factor for atherosclerotic cardiovascular disease (ASCVD) and aortic stenosis/calcific aortic valve disease (AS/CAVD). Limited therapies currently exist for the management of risk associated with elevated Lp(a), but several targeted therapies are currently in various stages of clinical development. In this review, we detail evidence supporting Lp(a) as a causal risk factor for ASCVD and AS/CAVD, and discuss approaches to managing Lp(a)-associated risk.
Collapse
|
35
|
Nissen SE, Wolski K, Cho L, Nicholls SJ, Kastelein J, Leitersdorf E, Landmesser U, Blaha M, Lincoff AM, Morishita R, Tsimikas S, Liu J, Manning B, Kozlovski P, Lesogor A, Thuren T, Shibasaki T, Matei F, Silveira FS, Meunch A, Bada A, Vijan V, Bruun NE, Nordestgaard BG. Lipoprotein(a) levels in a global population with established atherosclerotic cardiovascular disease. Open Heart 2022; 9:e002060. [PMID: 36252994 PMCID: PMC9577925 DOI: 10.1136/openhrt-2022-002060] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 09/21/2022] [Indexed: 11/07/2022] Open
Abstract
OBJECTIVE Lipoprotein(a) (Lp(a)) is an important genetically determined risk factor for atherosclerotic vascular disease (ASCVD). With the development of Lp(a)-lowering therapies, this study sought to characterise patterns of Lp(a) levels in a global ASCVD population and identify racial, ethnic, regional and gender differences. METHODS A multicentre cross-sectional epidemiological study to estimate the prevalence of elevated Lp(a) in patients with a history of myocardial infarction, ischaemic stroke or peripheral artery disease conducted at 949 sites in 48 countries in North America, Europe, Asia, South America, South Africa and Australia between April 2019 and July 2021. Low-density lipoprotein cholesterol (LDL-C) and Lp(a) levels were measured either as mass (mg/dL) or molar concentration (nmol/L). RESULTS Of 48 135 enrolled patients, 13.9% had prior measurements of Lp(a). Mean age was 62.6 (SD 10.1) years and 25.9% were female. Median Lp(a) was 18.0 mg/dL (IQR 7.9-57.1) or 42.0 nmol/L (IQR 15.0-155.4). Median LDL-C was 77 mg/dL (IQR 58.4-101.0). Lp(a) in women was higher, 22.8 (IQR 9.0-73.0) mg/dL, than in men, 17.0 (IQR 7.1-52.2) mg/dL, p<0.001. Black patients had Lp(a) levels approximately threefold higher than white, Hispanic or Asian patients. Younger patients also had higher levels. 27.9% of patients had Lp(a) levels >50 mg/dL, 20.7% had levels >70 mg/dL, 12.9% were >90 mg/dL and 26.0% of patients exceeded 150 nmol/L. CONCLUSIONS Globally, Lp(a) is measured in a small minority of patients with ASCVD and is highest in black, younger and female patients. More than 25% of patients had levels exceeding the established threshold for increased cardiovascular risk, approximately 50 mg/dL or 125 nmol/L. TRIAL REGISTRATION NUMBER
Collapse
Affiliation(s)
- Steven E Nissen
- Cleveland Clinic Cardiovascular Coordinating Center, Cleveland, Ohio, USA
| | - Kathy Wolski
- Cleveland Clinic Cardiovascular Coordinating Center, Cleveland, Ohio, USA
| | - Leslie Cho
- Cleveland Clinic Cardiovascular Coordinating Center, Cleveland, Ohio, USA
| | - Stephen J Nicholls
- Victorian Heart Institute, Monash University, Clayton, Victoria, Australia
| | | | - Eran Leitersdorf
- Department of Medicine, Hadassah Medical Center, Jerusalem, Israel
- Israel and Faculty of Medicine, the Hebrew University, Jerusalem, Israel
| | - Ulf Landmesser
- Department of Cardiology, Charité University Medicine Berlin, German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin Institute of Health, Berlin, Germany
| | - Michael Blaha
- Johns Hopkins, Ciccarone Center for the Prevention of Cardiovascular Disease, Baltimore, Maryland, USA
| | - A Michael Lincoff
- Cleveland Clinic Cardiovascular Coordinating Center, Cleveland, Ohio, USA
| | - Ryuichi Morishita
- Center of Medical Innovation and Translational Research School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Sotirios Tsimikas
- Division of Cardiovascular Medicine, University of California San Diego, La Jolla, California, USA
| | - Junhao Liu
- Novartis Pharmaceuticals, East Hanover, New Jersey, USA
| | - Brian Manning
- Novartis Pharmaceuticals, East Hanover, New Jersey, USA
| | | | | | - Tom Thuren
- Novartis Pharmaceuticals, East Hanover, New Jersey, USA
| | - Taro Shibasaki
- Saitama Sekishinkai Hospital, Sayama-city, Saitama, Japan
| | | | | | | | - Aysha Bada
- Chris Hani Baragwanath Hospital, Soweto, South Africa
| | - Vinod Vijan
- Vijan Cardiac & Critical Care Centre, Maharashtra, India
| | | | - Borge G Nordestgaard
- Copenhagen University Hospital - Herlev Gentofte, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
36
|
Loh WJ, Watts GF. The Inherited Hypercholesterolemias. Endocrinol Metab Clin North Am 2022; 51:511-537. [PMID: 35963626 DOI: 10.1016/j.ecl.2022.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Inherited hypercholesterolemias include monogenic and polygenic disorders, which can be very rare (eg, cerebrotendinous xanthomatosis (CTX)) or relatively common (eg, familial combined hyperlipidemia [FCH]). In this review, we discuss familial hypercholesterolemia (FH), FH-mimics (eg, polygenic hypercholesterolemia [PH], FCH, sitosterolemia), and other inherited forms of hypercholesterolemia (eg, hyper-lipoprotein(a) levels [hyper-Lp(a)]). The prevalence, genetics, and management of inherited hypercholesterolemias are described and selected guidelines summarized.
Collapse
Affiliation(s)
- Wann Jia Loh
- Department of Endocrinology, Changi General Hospital, 2 Simei Street 3, Singapore 529889.
| | - Gerald F Watts
- School of Medicine, University of Western Australia, 35 Stirling Hwy, Crawley, Western Australia 6009, Australia; Department of Cardiology and Internal Medicine, Royal Perth Hospital, Victoria Square, Perth, Western Australia 6000, Australia
| |
Collapse
|
37
|
Civeira F, Arca M, Cenarro A, Hegele RA. A mechanism-based operational definition and classification of hypercholesterolemia. J Clin Lipidol 2022; 16:813-821. [DOI: 10.1016/j.jacl.2022.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 08/31/2022] [Accepted: 09/19/2022] [Indexed: 11/16/2022]
|
38
|
Kronenberg F, Mora S, Stroes ESG, Ference BA, Arsenault BJ, Berglund L, Dweck MR, Koschinsky M, Lambert G, Mach F, McNeal CJ, Moriarty PM, Natarajan P, Nordestgaard BG, Parhofer KG, Virani SS, von Eckardstein A, Watts GF, Stock JK, Ray KK, Tokgözoğlu LS, Catapano AL. Lipoprotein(a) in atherosclerotic cardiovascular disease and aortic stenosis: a European Atherosclerosis Society consensus statement. Eur Heart J 2022; 43:3925-3946. [PMID: 36036785 PMCID: PMC9639807 DOI: 10.1093/eurheartj/ehac361] [Citation(s) in RCA: 291] [Impact Index Per Article: 145.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/10/2022] [Accepted: 06/21/2022] [Indexed: 12/20/2022] Open
Abstract
This 2022 European Atherosclerosis Society lipoprotein(a) [Lp(a)] consensus statement updates evidence for the role of Lp(a) in atherosclerotic cardiovascular disease (ASCVD) and aortic valve stenosis, provides clinical guidance for testing and treating elevated Lp(a) levels, and considers its inclusion in global risk estimation. Epidemiologic and genetic studies involving hundreds of thousands of individuals strongly support a causal and continuous association between Lp(a) concentration and cardiovascular outcomes in different ethnicities; elevated Lp(a) is a risk factor even at very low levels of low-density lipoprotein cholesterol. High Lp(a) is associated with both microcalcification and macrocalcification of the aortic valve. Current findings do not support Lp(a) as a risk factor for venous thrombotic events and impaired fibrinolysis. Very low Lp(a) levels may associate with increased risk of diabetes mellitus meriting further study. Lp(a) has pro-inflammatory and pro-atherosclerotic properties, which may partly relate to the oxidized phospholipids carried by Lp(a). This panel recommends testing Lp(a) concentration at least once in adults; cascade testing has potential value in familial hypercholesterolaemia, or with family or personal history of (very) high Lp(a) or premature ASCVD. Without specific Lp(a)-lowering therapies, early intensive risk factor management is recommended, targeted according to global cardiovascular risk and Lp(a) level. Lipoprotein apheresis is an option for very high Lp(a) with progressive cardiovascular disease despite optimal management of risk factors. In conclusion, this statement reinforces evidence for Lp(a) as a causal risk factor for cardiovascular outcomes. Trials of specific Lp(a)-lowering treatments are critical to confirm clinical benefit for cardiovascular disease and aortic valve stenosis.
Collapse
Affiliation(s)
- Florian Kronenberg
- Institute of Genetic Epidemiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Samia Mora
- Center for Lipid Metabolomics, Division of Preventive Medicine, and Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Erik S G Stroes
- Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Brian A Ference
- Centre for Naturally Randomized Trials, University of Cambridge, Cambridge, UK
| | - Benoit J Arsenault
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, and Department of Medicine, Faculty of Medicine, Université Laval, Québec City, QC, Canada
| | - Lars Berglund
- Department of Internal Medicine, School of Medicine, University of California-Davis, Davis, Sacramento, CA, USA
| | - Marc R Dweck
- British Heart Foundation Centre for Cardiovascular Science, Edinburgh Heart Centre, University of Edinburgh, Chancellors Building, Little France Crescent, Edinburgh EH16 4SB, UK
| | - Marlys Koschinsky
- Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Gilles Lambert
- Inserm, UMR 1188 Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, 97400 Saint-Denis de La Reunion, France
| | - François Mach
- Department of Cardiology, Geneva University Hospital, Geneva, Switzerland
| | - Catherine J McNeal
- Division of Cardiology, Department of Internal Medicine, Baylor Scott & White Health, 2301 S. 31st St., USA
| | | | - Pradeep Natarajan
- Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, and Program in Medical and Population Genetics and Cardiovascular Disease Initiative, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Børge G Nordestgaard
- Department of Clinical Biochemistry and the Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Klaus G Parhofer
- Medizinische Klinik und Poliklinik IV, Ludwigs- Maximilians University Klinikum, Munich, Germany
| | - Salim S Virani
- Section of Cardiovascular Research, Baylor College of Medicine & Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX, USA
| | - Arnold von Eckardstein
- Institute of Clinical Chemistry, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Gerald F Watts
- Medical School, University of Western Australia, and Department of Cardiology, Lipid Disorders Clinic, Royal Perth Hospital, Perth, Australia
| | - Jane K Stock
- European Atherosclerosis Society, Mässans Gata 10, SE-412 51 Gothenburg, Sweden
| | - Kausik K Ray
- Imperial Centre for Cardiovascular Disease Prevention, Department of Primary Care and Public Health, School of Public Health, Imperial College London, London, UK
| | - Lale S Tokgözoğlu
- Department of Cardiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Alberico L Catapano
- Department of Pharmacological and Biomolecular Sciences, University of Milano, Milano, Italy.,IRCCS Multimedica, Milano, Italy
| |
Collapse
|
39
|
Plasma lipoprotein (a) and tissue plasminogen activator are associated with increased risk of atherosclerotic cardiovascular disease. Heliyon 2022; 8:e09836. [PMID: 35815138 PMCID: PMC9260301 DOI: 10.1016/j.heliyon.2022.e09836] [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: 02/21/2022] [Revised: 04/09/2022] [Accepted: 06/27/2022] [Indexed: 12/01/2022] Open
Abstract
Atherosclerotic cardiovascular disease (ASCVD) is the most common cause of mortality. Lipoprotein a (Lp(a)) is a low-density lipoprotein (LDL)-like particle with a similar structure to tissue plasminogen activator (t-PA) and it competes with plasminogen for its binding site leading to reduced fibrinolysis. The aim of this study was to assess association of Lp(a) and t-PA levels with risk of ASCVD and whether they are dependent on LDL levels. Patients who presented to the catheterization lab for assessment of coronary artery disease were included and stratified by their risk of ASCVD into low, moderate, high, and very high risk. Plasma levels of Lp(a) and t-PA levels were measured before catheterization. Consecutive patients (n = 362) were included. The mean age±sem was 52.28 ± 0.60 years. Plasma Lp(a) and t-PA levels were higher in very-high and high-risk patients relative to low-risk patients. Serum levels of triglyceride and high-density lipoprotein but not LDL were correlated with risk of ASCVD. Plasma Lp(a) and t-PA were not correlated or modified with LDL level. Plasma Lp(a) and t-PA levels were higher in patients undergoing coronary revascularization relative to patients having no intervention. Plasma t-PA level was higher in patients presented with myocardial infarction compared to those with angina. Multivariate analysis documented independent association of Lp(a) and t-PA with ASCVD risk. Plasma Lp(a) and t-PA levels are associated with increased ASCVDASCVD risk independent of LDL and could be used as predictors of atherosclerosis risk and in selecting patients who may benefit from coronary revascularization.
Collapse
|
40
|
Raitakari O, Kivelä A, Pahkala K, Rovio S, Mykkänen J, Ahola-Olli A, Loo BM, Lyytikäinen LP, Lehtimäki T, Kähönen M, Juonala M, Rönnemaa T, Lamina C, Kronenberg F, Viikari J. Long-term tracking and population characteristics of lipoprotein (a) in the cardiovascular risk in young finns study. Atherosclerosis 2022; 356:18-27. [DOI: 10.1016/j.atherosclerosis.2022.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/01/2022] [Accepted: 07/13/2022] [Indexed: 11/16/2022]
|
41
|
Farnier M, Chagué F, Maza M, Bichat F, Masson D, Cottin Y, Zeller M. High lipoprotein(a) levels predict severity of coronary artery disease in patients hospitalized for acute myocardial infarction. Data from the French RICO survey. J Clin Lipidol 2022; 16:685-693. [DOI: 10.1016/j.jacl.2022.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 06/21/2022] [Accepted: 07/13/2022] [Indexed: 10/17/2022]
|
42
|
Abstract
PURPOSE OF REVIEW Lipoprotein(a) (Lp[a]) is a likely causal risk factor for atherosclerotic cardiovascular disease (ASCVD) and aortic valve disease, confirmed by Mendelian randomization. With reliable assays, it has been established that Lp(a) is linearly associated with ASCVD. Current low-density lipoprotein cholesterol (LDL-C) lowering therapies do not or minimally lower Lp(a). This review focuses on the clinical importance and therapeutic consequences of Lp(a) measurement. RECENT FINDINGS Development of RNA-based Lp(a) lowering therapeutics has positioned Lp(a) as one of the principal residual risk factors to target in the battle against lipid-driven ASCVD risk. Pelacarsen, which is a liver-specific antisense oligonucleotide, has shown Lp(a) reductions up to 90% and its phase 3 trial is currently underway. Olpasiran is a small interfering RNA targeting LPA messenger RNA which is being investigated in phase 2 and has already shown dose-dependent Lp(a) reductions up to 90%. SUMMARY Lp(a) should be measured in every patient at least once to identify patients with very high Lp(a) levels. These patients could benefit from Lp(a) lowering therapies when approved. In the meantime, therapy in high Lp(a) patients should focus on further reducing LDL-C and other ASCVD risk factors.
Collapse
Affiliation(s)
- Nick S Nurmohamed
- Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, The Netherlands
- Department of Cardiology, Amsterdam UMC, Vrije Universiteit, Amsterdam, The Netherlands
| | - Patrick M Moriarty
- Atherosclerosis and Lipid-apheresis Center, University of Kansas Medical Center, Kansas City, KS, USA
| | - Erik S G Stroes
- Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, The Netherlands
| |
Collapse
|
43
|
Lipoprotein(a) measurement issues: Are we making a mountain out of a molehill? Atherosclerosis 2022; 349:123-135. [PMID: 35606072 DOI: 10.1016/j.atherosclerosis.2022.04.008] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/24/2022] [Accepted: 04/05/2022] [Indexed: 12/26/2022]
Abstract
Lipoprotein(a) [Lp(a)] became besides LDL cholesterol one of the most attractive targets for intervention in cardiovascular disease. Strong genetic evidence supports the causal association between high Lp(a) concentrations and cardiovascular outcomes. Since specific Lp(a)-lowering therapies are under clinical investigation, the interest in measuring Lp(a) has markedly increased. However, the special structure of the lead protein component of Lp(a), named apolipoprotein(a), creates difficulties for an accurate measurement of Lp(a). A highly homologous repetitive structure, called kringle IV repeat with up to more the 40 repeats, causes a highly polymorphic protein. Antibodies raised against apolipoprotein(a) are mostly directed against the repetitive structure of this protein, which complicates the measurement of Lp(a) in molar terms. Both measurements in mass (mg/dL) and molar terms (nmol/L) are described and a conversion from one into the another unit is only approximately possible. Working groups for standardization of Lp(a) measurements are going to prepare widely available and improved reference materials, which will be a major step for the measurement of Lp(a). This review discusses many aspects of the difficulties in measuring Lp(a). It tries to distinguish between academic and practical concerns and warns to make a mountain out of a molehill, which does no longer allow to see the patient behind that mountain by simply staring at the laboratory issues. On the other hand, the calibration of some assays raises major concerns, which are anything else but a molehill. This should be kept in mind and we should start measuring Lp(a) with the aim of a better risk stratification for the patient and to identify those patients who might be in urgent need for a specific Lp(a)-lowering therapy as soon as it becomes available.
Collapse
|
44
|
Loh WJ, Chan DC, Mata P, Watts GF. Familial Hypercholesterolemia and Elevated Lipoprotein(a): Cascade Testing and Other Implications for Contextual Models of Care. Front Genet 2022; 13:905941. [PMID: 35571022 PMCID: PMC9091303 DOI: 10.3389/fgene.2022.905941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 04/04/2022] [Indexed: 11/13/2022] Open
Abstract
Elevated lipoprotein(a) [Lp(a)], a predominantly genetic disorder, is a causal risk factor for atherosclerotic cardiovascular disease (ASCVD) and calcific aortic valvular disease, particularly in patients with familial hypercholesterolemia (FH), a Tier I genomic condition. The combination from birth of the cumulative exposure to elevated plasma concentrations of both Lp(a) and low-density lipoprotein is particularly detrimental and explains the enhanced morbidity and mortality risk observed in patients with both conditions. An excellent opportunity to identify at-risk patients with hyper-Lp(a) at increased risk of ASCVD is to test for hyper-Lp(a) during cascade testing for FH. With probands having FH and hyper-Lp(a), the yield of detection of hyper-Lp(a) is 1 individual for every 2.1-2.4 relatives tested, whereas the yield of detection of both conditions is 1 individual for every 3-3.4 relatives tested. In this article, we discuss the incorporation of assessment of Lp(a) in the cascade testing in FH as a feasible and crucial part of models of care for FH. We also propose a simple management tool to help physicians identify and manage elevated Lp(a) in FH, with implications for the care of Lp(a) beyond FH, noting that the clinical use of RNA therapeutics for specifically targeting the overproduction of Lp(a) in at risk patients is still under investigation.
Collapse
Affiliation(s)
- Wann Jia Loh
- Department of Endocrinology, Changi General Hospital, Singapore, Singapore
| | - Dick C Chan
- Medical School, University of Western Australia, Perth, WA, Australia
| | - Pedro Mata
- Fundación Hipercolesterolemia Familiar, Madrid, Spain
| | - Gerald F Watts
- Medical School, University of Western Australia, Perth, WA, Australia.,Lipid Disorders Clinic, Department of Cardiology and Internal Medicine, Royal Perth Hospital, Perth, WA, Australia
| |
Collapse
|
45
|
Nissen SE, Wolski K, Balog C, Swerdlow DI, Scrimgeour AC, Rambaran C, Wilson RJ, Boyce M, Ray KK, Cho L, Watts GF, Koren M, Turner T, Stroes ES, Melgaard C, Campion GV. Single Ascending Dose Study of a Short Interfering RNA Targeting Lipoprotein(a) Production in Individuals With Elevated Plasma Lipoprotein(a) Levels. JAMA 2022; 327:1679-1687. [PMID: 35368052 PMCID: PMC8978050 DOI: 10.1001/jama.2022.5050] [Citation(s) in RCA: 129] [Impact Index Per Article: 64.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
IMPORTANCE Lipoprotein(a) (Lp[a]) is an important risk factor for atherothrombotic cardiovascular disease and aortic stenosis, for which there are no treatments approved by regulatory authorities. OBJECTIVES To assess adverse events and tolerability of a short interfering RNA (siRNA) designed to reduce hepatic production of apolipoprotein(a) and to assess associated changes in plasma concentrations of Lp(a) at different doses. DESIGN, SETTING, AND PARTICIPANTS A single ascending dose study of SLN360, an siRNA targeting apolipoprotein(a) synthesis conducted at 5 clinical research unit sites located in the US, United Kingdom, and Australia. The study enrolled adults with Lp(a) plasma concentrations of 150 nmol/L or greater at screening and no known clinically overt cardiovascular disease. Participants were enrolled between November 18, 2020, and July 21, 2021, with last follow-up on December 29, 2021. INTERVENTIONS Participants were randomized to receive placebo (n = 8) or single doses of SLN360 at 30 mg (n = 6), 100 mg (n = 6), 300 mg (n = 6), or 600 mg (n = 6), administered subcutaneously. MAIN OUTCOMES AND MEASURES The primary outcome was evaluation of safety and tolerability. Secondary outcomes included change in plasma concentrations of Lp(a) to a maximum follow-up of 150 days. RESULTS Among 32 participants who were randomized and received the study intervention (mean age, 50 [SD, 13.5] years; 17 women [53%]), 32 (100%) completed the trial. One participant experienced 2 serious adverse event episodes: admission to the hospital for headache following SARS-CoV-2 vaccination and later for complications of cholecystitis, both of which were judged to be unrelated to study drug. Median baseline Lp(a) concentrations were as follows: placebo, 238 (IQR, 203-308) nmol/L; 30-mg SLN360, 171 (IQR, 142-219) nmol/L; 100-mg SLN360, 217 (IQR, 202-274) nmol/L; 300-mg SLN360, 285 (IQR, 195-338) nmol/L; and 600-mg SLN360, 231 (IQR, 179-276) nmol/L. Maximal median changes in Lp(a) were -20 (IQR, -61 to 3) nmol/L, -89 (IQR, -119 to -61) nmol/L, -185 (IQR, -226 to -163) nmol/L, -268 (IQR, -292 to -189) nmol/L, and -227 (IQR, -270 to -174) nmol/L, with maximal median percentage changes of -10% (IQR, -16% to 1%), -46% (IQR, -64% to -40%), -86% (IQR, -92% to -82%), -96% (IQR, -98% to -89%), and -98% (IQR, -98% to -97%), for the placebo group and the 30-mg, 100-mg, 300-mg, and 600-mg SLN360 groups, respectively. The duration of Lp(a) lowering was dose dependent, persisting for at least 150 days after administration. CONCLUSIONS AND RELEVANCE In this phase 1 study of 32 participants with elevated Lp(a) levels and no known cardiovascular disease, the siRNA SLN360 was well tolerated, and a dose-dependent lowering of plasma Lp(a) concentrations was observed. The findings support further study to determine the safety and efficacy of this siRNA. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT04606602; EudraCT Identifier: 2020-002471-35.
Collapse
Affiliation(s)
| | - Kathy Wolski
- Cleveland Clinic Center for Clinical Research, Cleveland, Ohio
| | - Craig Balog
- Cleveland Clinic Center for Clinical Research, Cleveland, Ohio
| | | | | | | | | | - Malcom Boyce
- UK Hammersmith Medicines Research, London, England
| | | | - Leslie Cho
- Cleveland Clinic Center for Clinical Research, Cleveland, Ohio
| | - Gerald F. Watts
- Royal Perth Hospital and School of Medicine, Departments of Cardiology and Internal Medicine, University of Western Australia, Perth, Australia
| | - Michael Koren
- Jacksonville Center for Clinical Research, Jacksonville, Florida
| | | | - Erik S. Stroes
- Faculty of Medicine, University of Amsterdam, Amsterdam, the Netherlands
| | - Carrie Melgaard
- Cleveland Clinic Center for Clinical Research, Cleveland, Ohio
| | | |
Collapse
|
46
|
Chemello K, Chan DC, Lambert G, Watts GF. Recent advances in demystifying the metabolism of lipoprotein(a). Atherosclerosis 2022; 349:82-91. [DOI: 10.1016/j.atherosclerosis.2022.04.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 03/29/2022] [Accepted: 04/01/2022] [Indexed: 12/24/2022]
|
47
|
Chakraborty A, Chan DC, Ellis KL, Pang J, Barnett W, Woodward AM, Vorster M, Norman R, Moses EK, Watts GF. Cascade testing for elevated lipoprotein(a) in relatives of probands with high lipoprotein(a). Am J Prev Cardiol 2022; 10:100343. [PMID: 35517871 PMCID: PMC9062205 DOI: 10.1016/j.ajpc.2022.100343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 04/05/2022] [Accepted: 04/14/2022] [Indexed: 01/21/2023] Open
Abstract
Elevated lipoprotein(a) [Lp(a)] is a common inherited condition associated with atherosclerotic cardiovascular disease. Elevated Lp(a) is not routinely tested in clinical practice and most cases remain undiagnosed in the community. We identified 124 relatives with elevated Lp(a) (≥50 mg/dL) from 83 affected adult probands who also had dyslipidemia. We also demonstrate that follow-up management is effective in lowering low-density lipoprotein-cholesterol levels by 34% as a consequence of initiation of lipid-lowering therapy. Cascade testing families for elevated Lp(a) from affected probands with dyslipidemia is an effective and acceptable approach for identifying new cases of elevated Lp(a) who will require management of modifiable risk factors, particularly hypercholesterolemia.
Objective Elevated lipoprotein(a) [Lp(a)] is a common inherited condition associated with cardiovascular disease. This study investigated whether cascade testing for Lp(a) was effective in detecting new cases of elevated Lp(a) in families. Methods Relatives from adult probands with Lp(a) concentration ≥100 mg/dL were tested for elevated Lp(a) (≥50 mg/dL) via a cascade testing program in a tertiary hospital setting. The prevalence and yield of detecting new cases of elevated Lp(a) among the relatives were assessed. Results Of the 83 probands, 43.4% had familial combined hyperlipidemia (FCHL) and 34.9% common hypercholesterolemia (CH). Among 182 relatives tested (151 adults and 31 children), elevated Lp(a) was found in 68.1%, with 32.9% having Lp(a) between 50 and 99 mg/dL and 35.2% having Lp(a) ≥100 mg/dL. One new case of elevated Lp(a) ≥50 mg/dL was identified for every 1.5 relatives tested and 1 new case of elevated Lp(a) ≥100 mg/dL for every 2.8 relatives tested. The proportion of relatives detected with elevated Lp(a) was significantly higher when tested from probands with Lp(a) >150 mg/dL compared with those with Lp(a) between 100 and 150 mg/dL (81.1% vs. 55.5%; P = 0.001). The concordance rates (kappa coefficient) for the detection of elevated Lp(a) with FCHL and CH were 34.8% (0.026) and 53.2% (0.099), respectively. Conclusion Cascade testing for elevated Lp(a) from affected probands with phenotypic dyslipidemia is highly effective in identifying new cases of high Lp(a) in families. The yield of detecting elevated Lp(a) is greater when probands have higher levels of Lp(a) and exceeds the detection of relatives with FCHL and CH.
Collapse
Affiliation(s)
- Anindita Chakraborty
- Medical School, University of Western Australia, Perth, Western Australia, Australia
| | - Dick C. Chan
- Medical School, University of Western Australia, Perth, Western Australia, Australia
| | - Katrina L. Ellis
- Medical School, University of Western Australia, Perth, Western Australia, Australia
| | - Jing Pang
- Medical School, University of Western Australia, Perth, Western Australia, Australia
| | - Wendy Barnett
- Lipid Disorders Clinic, Department of Cardiology and Internal Medicine, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Ann Marie Woodward
- Lipid Disorders Clinic, Department of Cardiology and Internal Medicine, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Mary Vorster
- Lipid Disorders Clinic, Department of Cardiology and Internal Medicine, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Richard Norman
- School of Population Health, Curtin University, Perth, Western Australia, Australia
| | - Eric K. Moses
- Menzies Institute for Medical Research, University of Tasmania, Tasmania, Australia
| | - Gerald F. Watts
- Medical School, University of Western Australia, Perth, Western Australia, Australia
- Lipid Disorders Clinic, Department of Cardiology and Internal Medicine, Royal Perth Hospital, Perth, Western Australia, Australia
- Corresponding author: Medical School, Faculty of Health and Medical Sciences, University of Western Australia, Royal Perth Hospital, GPO Box X2213, Perth, WA 6847, Australia.
| |
Collapse
|
48
|
Paré G, Chong M, Mohammadi-Shemirani P. Lipoprotein(a) Cholesterol Masquerading as Low-Density Lipoprotein Cholesterol: Catch Me if You Can. J Am Coll Cardiol 2022; 79:1047-1049. [PMID: 35300815 DOI: 10.1016/j.jacc.2022.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 01/10/2022] [Indexed: 11/17/2022]
Affiliation(s)
- Guillaume Paré
- Pathology and Molecular Medicine, Faculty of Health Sciences, Population Health Research Institute, and Thrombosis and Atherosclerosis Research Institute, McMaster University, Hamilton, Ontario, Canada.
| | - Michael Chong
- Pathology and Molecular Medicine, Faculty of Health Sciences, Population Health Research Institute, and Thrombosis and Atherosclerosis Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Pedrum Mohammadi-Shemirani
- Pathology and Molecular Medicine, Faculty of Health Sciences, Population Health Research Institute, and Thrombosis and Atherosclerosis Research Institute, McMaster University, Hamilton, Ontario, Canada
| |
Collapse
|
49
|
Yeang C, Karwatowska-Prokopczuk E, Su F, Dinh B, Xia S, Witztum JL, Tsimikas S. Effect of Pelacarsen on Lipoprotein(a) Cholesterol and Corrected Low-Density Lipoprotein Cholesterol. J Am Coll Cardiol 2022; 79:1035-1046. [PMID: 35300814 DOI: 10.1016/j.jacc.2021.12.032] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 12/17/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND Laboratory methods that report low-density lipoprotein cholesterol (LDL-C) include both LDL-C and lipoprotein(a) cholesterol [Lp(a)-C] content. OBJECTIVES The purpose of this study was to assess the effect of pelacarsen on directly measured Lp(a)-C and LDL-C corrected for its Lp(a)-C content. METHODS The authors evaluated subjects with a history of cardiovascular disease and elevated Lp(a) randomized to 5 groups of cumulative monthly doses of 20-80 mg pelacarsen vs placebo. Direct Lp(a)-C was measured on isolated Lp(a) using LPA4-magnetic beads directed to apolipoprotein(a). LDL-C was reported as: 1) LDL-C as reported by the clinical laboratory; 2) LDL-Ccorr = laboratory-reported LDL-C - direct Lp(a)-C; and 3) LDL-CcorrDahlén = laboratory LDL-C - [Lp(a) mass × 0.30] estimated by the Dahlén formula. RESULTS The baseline median Lp(a)-C values in the groups ranged from 11.9 to 15.6 mg/dL. Compared with placebo, pelacarsen resulted in dose-dependent decreases in Lp(a)-C (2% vs -29% to -67%; P = 0.001-<0.0001). Baseline laboratory-reported mean LDL-C ranged from 68.5 to 89.5 mg/dL, whereas LDL-Ccorr ranged from 55 to 74 mg/dL. Pelacarsen resulted in mean percent/absolute changes of -2% to -19%/-0.7 to -8.0 mg/dL (P = 0.95-0.05) in LDL-Ccorr, -7% to -26%/-5.4 to -9.4 mg/dL (P = 0.44-<0.0001) in laboratory-reported LDL-C, and 3.1% to 28.3%/0.1 to 9.5 mg/dL (P = 0.006-0.50) increases in LDL-CcorrDahlén. Total apoB declined by 3%-16% (P = 0.40-<0.0001), but non-Lp(a) apoB was not significantly changed. CONCLUSIONS Pelacarsen significantly lowers direct Lp(a)-C and has neutral to mild lowering of LDL-Ccorr. In patients with elevated Lp(a), LDL-Ccorr provides a more accurate reflection of changes in LDL-C than either laboratory-reported LDL-C or the Dahlén formula.
Collapse
Affiliation(s)
- Calvin Yeang
- Division of Cardiovascular Medicine, Department of Medicine, University of California-San Diego, La Jolla, California, USA
| | | | - Fei Su
- Division of Cardiovascular Medicine, Department of Medicine, University of California-San Diego, La Jolla, California, USA
| | - Brian Dinh
- Division of Cardiovascular Medicine, Department of Medicine, University of California-San Diego, La Jolla, California, USA
| | - Shuting Xia
- Ionis Pharmaceuticals, Carlsbad, California, USA
| | - Joseph L Witztum
- Division of Endocrinology and Metabolism, Department of Medicine, University of California-San Diego, La Jolla, California, USA
| | - Sotirios Tsimikas
- Division of Cardiovascular Medicine, Department of Medicine, University of California-San Diego, La Jolla, California, USA; Ionis Pharmaceuticals, Carlsbad, California, USA.
| |
Collapse
|
50
|
Packard CJ. Remnants, LDL, and the Quantification of Lipoprotein-Associated Risk in Atherosclerotic Cardiovascular Disease. Curr Atheroscler Rep 2022; 24:133-142. [PMID: 35175548 PMCID: PMC8983627 DOI: 10.1007/s11883-022-00994-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/17/2021] [Indexed: 12/31/2022]
Abstract
Purpose of Review Implementation of intensive LDL cholesterol (LDL-C) lowering strategies and recognition of the role of triglyceride-rich lipoproteins (TRL) in atherosclerosis has prompted re-evaluation of the suitability of current lipid profile measurements for future clinical practice. Recent Findings At low concentrations of LDL-C (< 1.8 mmol/l/70 mg/dl), the Friedewald equation yields estimates with substantial negative bias. New equations provide a more accurate means of calculating LDL-C. Recent reports indicate that the increase in risk per unit increment in TRL/remnant cholesterol may be greater than that of LDL-C. Hence, specific measurement of TRL/remnant cholesterol may be of importance in determining risk. Non-HDL cholesterol and plasma apolipoprotein B have been shown in discordancy analyses to identify individuals at high risk even when LDL-C is low. Summary There is a need to adopt updated methods for determining LDL-C and to develop better biomarkers that more accurately reflect the abundance of TRL remnant particles.
Collapse
Affiliation(s)
- Chris J Packard
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, G12 8QQ, Scotland, UK.
| |
Collapse
|