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Michenaud L, Marrié N, Rimbert A, Marmontel O, Charrière S, Gibert C, Bouveyron C, Mammi J, Cariou B, Moulin P, Di Filippo M. Evaluation of biochemical algorithms to screen dysbetalipoproteinemia in ε2ε2 and rare APOE variants carriers. Clin Chem Lab Med 2024; 0:cclm-2024-0587. [PMID: 39069817 DOI: 10.1515/cclm-2024-0587] [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: 05/12/2024] [Accepted: 07/16/2024] [Indexed: 07/30/2024]
Abstract
OBJECTIVES Dysbetalipoproteinemia (DBL) is a combined dyslipidemia associated with an increased risk of atherosclerotic cardiovascular diseases mostly occurring in ε2ε2 subjects and infrequently in subjects with rare APOE variants. Several algorithms have been proposed to screen DBL. In this work, we compared the diagnostic performances of nine algorithms including a new one. METHODS Patients were divided into 3 groups according to their APOE genotype: ε2ε2 ("ε2ε2", n=49), carriers of rare variants ("APOEmut", n=20) and non-carriers of ε2ε2 nor APOE rare variant ("controls", n=115). The algorithms compared were those from Fredrickson, Sniderman, Boot, Paquette, De Graaf, Sampson, eSampson, Bea and ours, the "Hospices Civils de Lyon (HCL) algorithm". Our gold standard was the presence of a ε2ε2 genotype or of a rare variant associated with triglycerides (TG) >1.7 mmol/L. A replication in the UK Biobank and a robustness analysis were performed by considering only subjects with both TG and low-density lipoprotein-cholesterol (LDLc) >90th percentile. RESULTS Total cholesterol (TC)/ApoB and NHDLC/ApoB are the best ratios to suspect DBL. In ε2ε2, according to their likelihood ratios (LR), the most clinically efficient algorithms were the HCL, Sniderman and De Graaf's. In APOEmut, Sniderman's algorithm exhibited the lowest negative LR (0.07) whereas the HCL's exhibited the highest positive LR (29). In both cohorts, the HCL algorithm had the best LR. CONCLUSIONS We proposed a powerful algorithm based on ApoB concentration and the routine lipid profile, which performs remarkably well in detecting ε2ε2 or APOE variant-related DBL. Additional studies are needed to further evaluate algorithms performances in DBL carriers of infrequent APOE variants.
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Affiliation(s)
- Louise Michenaud
- 26900 Hospices Civils de Lyon , UF Dyslipidémies, Service de Biochimie et de Biologie Moléculaire, Laboratoire de Biologie Médicale MultiSites, Bron, France
| | - Nathanaël Marrié
- 26900 Hospices Civils de Lyon , UF Dyslipidémies, Service de Biochimie et de Biologie Moléculaire, Laboratoire de Biologie Médicale MultiSites, Bron, France
| | - Antoine Rimbert
- Nantes Université, CNRS, CHU Nantes, Inserm, l'institut du thorax, Nantes, France
| | - Oriane Marmontel
- 26900 Hospices Civils de Lyon , UF Dyslipidémies, Service de Biochimie et de Biologie Moléculaire, Laboratoire de Biologie Médicale MultiSites, Bron, France
- CarMen Laboratory, INSERM, INRA, INSA Lyon, Université Claude Bernard Lyon 1, Pierre-Bénite, France
| | - Sybil Charrière
- CarMen Laboratory, INSERM, INRA, INSA Lyon, Université Claude Bernard Lyon 1, Pierre-Bénite, France
- 26900 Hospices Civils de Lyon , Fédération d'endocrinologie, maladies métaboliques, diabète et nutrition, Hôpital Louis Pradel, Bron, France
| | - Charles Gibert
- 26900 Hospices Civils de Lyon , Laboratoire de Biologie Médicale Multi-Sites, Bron, France
| | - Caroline Bouveyron
- 26900 Hospices Civils de Lyon , UF Dyslipidémies, Service de Biochimie et de Biologie Moléculaire, Laboratoire de Biologie Médicale MultiSites, Bron, France
| | - Jade Mammi
- 26900 Hospices Civils de Lyon , UF Dyslipidémies, Service de Biochimie et de Biologie Moléculaire, Laboratoire de Biologie Médicale MultiSites, Bron, France
| | - Bertrand Cariou
- Nantes Université, CNRS, CHU Nantes, Inserm, l'institut du thorax, Nantes, France
| | - Philippe Moulin
- CarMen Laboratory, INSERM, INRA, INSA Lyon, Université Claude Bernard Lyon 1, Pierre-Bénite, France
- 26900 Hospices Civils de Lyon , Fédération d'endocrinologie, maladies métaboliques, diabète et nutrition, Hôpital Louis Pradel, Bron, France
| | - Mathilde Di Filippo
- 26900 Hospices Civils de Lyon , UF Dyslipidémies, Service de Biochimie et de Biologie Moléculaire, Laboratoire de Biologie Médicale MultiSites, Bron, France
- CarMen Laboratory, INSERM, INRA, INSA Lyon, Université Claude Bernard Lyon 1, Pierre-Bénite, France
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Zubirán R, Vargas-Vazquez A, Olvera FDR, Cruz-Bautista I, Martagón-Rosado A, Sampson M, Remaley AT, Aguilar-Salinas CA. Performance of the enhanced Sampson-NIH equation for VLDL-C and LDL-C in a population with familial combined hyperlipidemia. Atherosclerosis 2023; 386:117364. [PMID: 37984194 PMCID: PMC10841743 DOI: 10.1016/j.atherosclerosis.2023.117364] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 11/22/2023]
Abstract
INTRODUCTION Low-density cholesterol (LDL-C) has long been estimated by the Friedewald formula (F-LDL-C); however, this method underestimates LDL-C in patients with hypertriglyceridemia (HTG) or low LDL-C levels. The Martin (M-LDL-C) and Sampson (S-LDL-C) formulas partially resolve these limitations. Recently, Sampson et al. developed a new equation (eS-VLDL-C) that includes ApoB. This new equation could be particularly useful in FCHL, which is characterized by the predominance of triglyceride-rich VLDL and a discordance between LDL-C and ApoB. METHODS Very low-density lipoproteins (VLDL-C) was measured in 336 patients with FCHL by sequential ultracentrifugation. LDL-C was estimated by subtracting VLDL-C, estimated by the different equations, from non-HDL cholesterol. Spearman correlations, R2, mean squared error (RMSE), and bias were used to compare the accuracy of the different equations. Concordance of the estimated LDL-C values with LDL-C thresholds and ApoB was also assessed by their kappa coefficients and ROC analysis. RESULTS Overall population had a mean age of 47 years, and 61.5% were women. 19.5% had type 2 diabetes, hypertension was present in 20.8%, and only 12.2% were on statin treatment. Both S-LDL-C and eS-LDL-C performed similarly, and better than M-LDL-C and F-LDL-C. In Bland-Altman analysis, eS-LDL-C showed the lowest bias, better performance in HTG, and better concordance with LDL-C treatment goals compared to other formulas (e.g. ρ: 0.87, 95% CI 0.84-0.89). CONCLUSIONS LDL-S and LDL-eS equations estimate the concentration of LDL-C with greater accuracy than other formulas. The LDL-eS has best performance in estimating LDL-C with lower RMSE than other formulas.
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Affiliation(s)
- Rafael Zubirán
- Metabolic Diseases Research Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, 14080 Mexico City, Mexico; Lipoprotein Metabolism Laboratory, Translational Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Arsenio Vargas-Vazquez
- Metabolic Diseases Research Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, 14080 Mexico City, Mexico; Department of Medical Education, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, 14080 Mexico City, Mexico
| | - Fabiola Del Razo Olvera
- Metabolic Diseases Research Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, 14080 Mexico City, Mexico
| | - Ivette Cruz-Bautista
- Metabolic Diseases Research Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, 14080 Mexico City, Mexico
| | - Alexandro Martagón-Rosado
- Metabolic Diseases Research Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, 14080 Mexico City, Mexico; Escuela de Medicina y Ciencias de la Salud, Tecnologico de Monterrey, Mexico City 64700, Mexico; Institute for Obesity Research, Tecnologico de Monterrey, Mexico City 64700, Mexico
| | - Maureen Sampson
- Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD 20892, USA
| | - Alan T Remaley
- Lipoprotein Metabolism Laboratory, Translational Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Carlos A Aguilar-Salinas
- Metabolic Diseases Research Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, 14080 Mexico City, Mexico; Escuela de Medicina y Ciencias de la Salud, Tecnologico de Monterrey, Mexico City 64700, Mexico; Department of Investigation, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, 14080 Mexico City, Mexico; Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Beirut, Lebanon.
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Blokhina AV, Ershova AI, Kiseleva AV, Sotnikova EA, Zharikova AA, Zaicenoka M, Vyatkin YV, Ramensky VE, Kutsenko VA, Shalnova SA, Meshkov AN, Drapkina OM. Applicability of Diagnostic Criteria and High Prevalence of Familial Dysbetalipoproteinemia in Russia: A Pilot Study. Int J Mol Sci 2023; 24:13159. [PMID: 37685967 PMCID: PMC10487848 DOI: 10.3390/ijms241713159] [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: 05/31/2023] [Revised: 08/14/2023] [Accepted: 08/22/2023] [Indexed: 09/10/2023] Open
Abstract
Familial dysbetalipoproteinemia (FD) is a highly atherogenic genetically based lipid disorder with an underestimated actual prevalence. In recent years, several biochemical algorithms have been developed to diagnose FD using available laboratory tests. The practical applicability of FD diagnostic criteria and the prevalence of FD in Russia have not been previously assessed. We demonstrated that the diagnostic algorithms of FD, including the diagnostic apoB levels, require correction, taking into account the distribution of apoB levels in the population. At the same time, a triglycerides cutoff ≥ 1.5 mmol/L may be a useful tool in identifying subjects with FD. In this study, a high prevalence of FD was detected: 0.67% (one in 150) based on the ε2ε2 haplotype and triglycerides levels ≥ 1.5 mmol/L. We also analyzed the presence and pathogenicity of APOE variants associated with autosomal dominant FD in a large research sample.
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Affiliation(s)
- Anastasia V. Blokhina
- National Medical Research Center for Therapy and Preventive Medicine, Ministry of Healthcare of the Russian Federation, Petroverigsky per. 10, Bld. 3, 101000 Moscow, Russia; (A.I.E.); (A.V.K.); (E.A.S.); (A.A.Z.); (Y.V.V.); (V.E.R.); (V.A.K.); (S.A.S.); (A.N.M.); (O.M.D.)
| | - Alexandra I. Ershova
- National Medical Research Center for Therapy and Preventive Medicine, Ministry of Healthcare of the Russian Federation, Petroverigsky per. 10, Bld. 3, 101000 Moscow, Russia; (A.I.E.); (A.V.K.); (E.A.S.); (A.A.Z.); (Y.V.V.); (V.E.R.); (V.A.K.); (S.A.S.); (A.N.M.); (O.M.D.)
| | - Anna V. Kiseleva
- National Medical Research Center for Therapy and Preventive Medicine, Ministry of Healthcare of the Russian Federation, Petroverigsky per. 10, Bld. 3, 101000 Moscow, Russia; (A.I.E.); (A.V.K.); (E.A.S.); (A.A.Z.); (Y.V.V.); (V.E.R.); (V.A.K.); (S.A.S.); (A.N.M.); (O.M.D.)
| | - Evgeniia A. Sotnikova
- National Medical Research Center for Therapy and Preventive Medicine, Ministry of Healthcare of the Russian Federation, Petroverigsky per. 10, Bld. 3, 101000 Moscow, Russia; (A.I.E.); (A.V.K.); (E.A.S.); (A.A.Z.); (Y.V.V.); (V.E.R.); (V.A.K.); (S.A.S.); (A.N.M.); (O.M.D.)
| | - Anastasia A. Zharikova
- National Medical Research Center for Therapy and Preventive Medicine, Ministry of Healthcare of the Russian Federation, Petroverigsky per. 10, Bld. 3, 101000 Moscow, Russia; (A.I.E.); (A.V.K.); (E.A.S.); (A.A.Z.); (Y.V.V.); (V.E.R.); (V.A.K.); (S.A.S.); (A.N.M.); (O.M.D.)
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 1-73, Leninskie Gory, 119991 Moscow, Russia
| | - Marija Zaicenoka
- Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Institutskiy per. 9, 141701 Dolgoprudny, Russia;
| | - Yuri V. Vyatkin
- National Medical Research Center for Therapy and Preventive Medicine, Ministry of Healthcare of the Russian Federation, Petroverigsky per. 10, Bld. 3, 101000 Moscow, Russia; (A.I.E.); (A.V.K.); (E.A.S.); (A.A.Z.); (Y.V.V.); (V.E.R.); (V.A.K.); (S.A.S.); (A.N.M.); (O.M.D.)
- Department of Natural Sciences, Novosibirsk State University, 1, Pirogova Str., 630090 Novosibirsk, Russia
| | - Vasily E. Ramensky
- National Medical Research Center for Therapy and Preventive Medicine, Ministry of Healthcare of the Russian Federation, Petroverigsky per. 10, Bld. 3, 101000 Moscow, Russia; (A.I.E.); (A.V.K.); (E.A.S.); (A.A.Z.); (Y.V.V.); (V.E.R.); (V.A.K.); (S.A.S.); (A.N.M.); (O.M.D.)
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 1-73, Leninskie Gory, 119991 Moscow, Russia
| | - Vladimir A. Kutsenko
- National Medical Research Center for Therapy and Preventive Medicine, Ministry of Healthcare of the Russian Federation, Petroverigsky per. 10, Bld. 3, 101000 Moscow, Russia; (A.I.E.); (A.V.K.); (E.A.S.); (A.A.Z.); (Y.V.V.); (V.E.R.); (V.A.K.); (S.A.S.); (A.N.M.); (O.M.D.)
- Faculty of Mechanics and Mathematics, Lomonosov Moscow State University, 1-73, Leninskie Gory, 119991 Moscow, Russia
| | - Svetlana A. Shalnova
- National Medical Research Center for Therapy and Preventive Medicine, Ministry of Healthcare of the Russian Federation, Petroverigsky per. 10, Bld. 3, 101000 Moscow, Russia; (A.I.E.); (A.V.K.); (E.A.S.); (A.A.Z.); (Y.V.V.); (V.E.R.); (V.A.K.); (S.A.S.); (A.N.M.); (O.M.D.)
| | - Alexey N. Meshkov
- National Medical Research Center for Therapy and Preventive Medicine, Ministry of Healthcare of the Russian Federation, Petroverigsky per. 10, Bld. 3, 101000 Moscow, Russia; (A.I.E.); (A.V.K.); (E.A.S.); (A.A.Z.); (Y.V.V.); (V.E.R.); (V.A.K.); (S.A.S.); (A.N.M.); (O.M.D.)
- National Medical Research Center for Cardiology, 3–ya Cherepkovskaya Street, 15A, 121552 Moscow, Russia
- Research Centre for Medical Genetics, 1 Moskvorechye St, 115522 Moscow, Russia
- Department of General and Medical Genetics, Pirogov Russian National Research Medical University, 1 Ostrovityanova st., 117997 Moscow, Russia
| | - Oxana M. Drapkina
- National Medical Research Center for Therapy and Preventive Medicine, Ministry of Healthcare of the Russian Federation, Petroverigsky per. 10, Bld. 3, 101000 Moscow, Russia; (A.I.E.); (A.V.K.); (E.A.S.); (A.A.Z.); (Y.V.V.); (V.E.R.); (V.A.K.); (S.A.S.); (A.N.M.); (O.M.D.)
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Bea AM, Cenarro A, Marco-Bened V, Laclaustra M, Martn C, Ibarretxe D, Pint X, Arrobas T, Vials C, Civeira F, Olmos S. Diagnosis of Familial Dysbetalipoproteinemia Based on the Lipid Abnormalities Driven by APOE2/E2 Genotype. Clin Chem 2023; 69:140-148. [PMID: 36644927 DOI: 10.1093/clinchem/hvac213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 11/14/2022] [Indexed: 01/17/2023]
Abstract
BACKGROUND Familial dysbetalipoproteinemia (FDBL) is a monogenic disease due to variants in APOE with a highly variable phenotype. Current diagnostic lipid-based methods have important limitations. The objective is twofold: to define characteristics of dysbetalipoproteinemia (DBL) based on the analysis of APOE in patients from a lipid unit and in a sample from the general population, and to propose a screening algorithm for FDBL. METHODS Lipids and APOE genotype from consecutive unrelated subjects from Miguel Servet University Hospital (MSUH) (n 3603), subjects from the general population participants of the Aragon Workers Health Study (AWHS) (n 4981), and selected subjects from external lipid units (Ext) (n 390) were used to define DBL criteria and to train and validate a screening tool. RESULTS Thirty-five subjects from MSUH, 21 subjects from AWHS, and 31 subjects from Ext were APOE2/2 homozygous. The combination of non high-density lipoprotein cholesterol (non-HDLc)/apoB 1.7 plus triglycerides/apoB 1.35, in mg/dL (non-HDLc [mmol/L]/apolipoprotein B (apoB) [g/L] 4.4 and triglycerides [mmol/L]/apoB [g/L] 3.5), provided the best diagnostic performance for the identification of subjects with hyperlipidemia and APOE2/2 genotype (sensitivity 100 in the 3 cohorts, and specificity 92.8 [MSUH], 80.9 [AWHS], and 77.6 [Ext]). This improves the performance of previous algorithms. Similar sensitivity and specificity were observed in APOE2/2 subjects receiving lipid-lowering drugs. CONCLUSIONS The combination of non-HDLc/apoB and triglycerides/apoB ratios is a valuable tool to diagnose DBL in patients with hyperlipidemia with or without lipid-lowering drugs. FDBL diagnosis requires DBL and the presence of a compatible APOE genotype. Most adult APOE2/2 subjects express DBL, making FDBL as common as familial hypercholesterolemia in the population.
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Affiliation(s)
- Ana M Bea
- Hospital Universitario Miguel Servet, IIS Aragn, CIBERCV, Zaragoza, Spain
| | - Ana Cenarro
- Hospital Universitario Miguel Servet, IIS Aragn, CIBERCV, Zaragoza, Spain.,Molecular Research Laboratory, Instituto Aragones de Ciencias de la Salud (IACS), Zaragoza, Spain
| | - Victoria Marco-Bened
- Hospital Universitario Miguel Servet, IIS Aragn, CIBERCV, Zaragoza, Spain.,Departamento de Medicina, Psiquiatra y Dermatologa, Universidad de Zaragoza, Zaragoza, Spain
| | - Martn Laclaustra
- Hospital Universitario Miguel Servet, IIS Aragn, CIBERCV, Zaragoza, Spain.,Departamento de Medicina, Psiquiatra y Dermatologa, Universidad de Zaragoza, Zaragoza, Spain
| | - Csar Martn
- Fundacin Biofisika Bizkaia, Leioa, Spain.,Biofisika Institute (UPV/EHU, CSIC), Leioa, Spain.,Department of Biochemistry and Molecular Biology, Universidad del Pas Vasco UPV/EHU, Bilbao, Spain
| | - Daiana Ibarretxe
- Unitat de Medicina Vascular i Metabolisme (UVASMET) Hospital Universitari Sant Joan, IISPV, CIBERDEM, Universitat Rovira i Virgili, Reus, Tarragona, Spain
| | - Xavier Pint
- Unidad de Lpidos, Servicio de Medicina Interna, Hospital Universitario de Bellvitge-Idibell, Universidad de Barcelona, CiberObn, Barcelona, Spain
| | - Teresa Arrobas
- Laboratorio de Nutricin y RCV, Laboratorio de Bioqumica Clnica, Hospital Virgen Macarena, Sevilla, Spain
| | - Clara Vials
- Endocrinology Department, Hospital Clnic de Barcelona, Barcelona, Spain.,Institut dInvestigacions Biomdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigacin Biomdica en Red Fisiopatologa de la Obesidad y Nutricin (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Fernando Civeira
- Hospital Universitario Miguel Servet, IIS Aragn, CIBERCV, Zaragoza, Spain.,Departamento de Medicina, Psiquiatra y Dermatologa, Universidad de Zaragoza, Zaragoza, Spain
| | - Salvador Olmos
- Hospital Universitario Miguel Servet, IIS Aragn, CIBERCV, Zaragoza, Spain.,Aragon Institute of Engineering Research (I3A), Universidad de Zaragoza, Zaragoza, Spain
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Muthuramu I, Mishra M, De Geest B. Increased Remnant Lipoproteins in Apo E Deficient Mice Induce Coronary Atherosclerosis following Transverse Aortic Constriction and Aggravate the Development of Pressure Overload-Induced Cardiac Hypertrophy and Heart Failure. Biomedicines 2022; 10:biomedicines10071592. [PMID: 35884897 PMCID: PMC9312863 DOI: 10.3390/biomedicines10071592] [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: 06/10/2022] [Revised: 06/27/2022] [Accepted: 06/29/2022] [Indexed: 11/16/2022] Open
Abstract
Murine coronary arteries are very resistant to the development of atherosclerosis, which may be related to their intramyocardial course. Blood pressure promotes atherosclerotic plaque formation by acting as a physical force that potentiates the migration of pro-atherogenic lipoproteins across the endothelium. C57BL/6N apolipoprotein (apo) E deficient mice have increased remnant lipoproteins that are a risk factor for coronary atherosclerosis. In this study, our aim was to quantify coronary atherosclerosis and artery remodeling following transverse aortic constriction (TAC) in C57BL/6N apo E−/− mice and to evaluate the impact of increased remnant lipoproteins on the development of pressure overload-induced cardiac hypertrophy and heart failure. Advanced atherosclerotic lesions were observed in the left coronary artery of C57BL/6N apo E−/− TAC mice but not in C57BL/6N TAC mice. Pressure overload resulted in markedly increased cardiac hypertrophy and more pronounced heart failure in C57BL/6N apo E−/− TAC mice in comparison to C57BL/6N TAC mice. Pathological hypertrophy, as evidenced by increased myocardial fibrosis and capillary rarefaction, was more prominent in C57BL/6N TAC apo E−/− than in C57BL/6N TAC mice and led to more marked cardiac dysfunction. In conclusion, TAC in apo E deficient mice induces coronary atherosclerosis and aggravates the development of pathological cardiac hypertrophy and heart failure.
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Affiliation(s)
- Ilayaraja Muthuramu
- Centre for Molecular and Vascular Biology, Catholic University of Leuven, 3000 Leuven, Belgium; (I.M.); (M.M.)
- Gene Therapy Program, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Mudit Mishra
- Centre for Molecular and Vascular Biology, Catholic University of Leuven, 3000 Leuven, Belgium; (I.M.); (M.M.)
- Department of Cardiothoracic Surgery, University Medical Center Utrecht, 3508 GA Utrecht, The Netherlands
- Laboratory of Experimental Cardiology, Department of Cardiology, University Medical Center Utrecht, University Utrecht, 3508 GA Utrecht, The Netherlands
| | - Bart De Geest
- Centre for Molecular and Vascular Biology, Catholic University of Leuven, 3000 Leuven, Belgium; (I.M.); (M.M.)
- Correspondence: ; Tel.: +32-16-372059; Fax: +32-16-345990
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Abstract
Hypertriglyceridemia is a common lipid disorder encountered in clinical practice. Plasma triglycerides are a marker for the concentration of triglycerides carried in chylomicrons and very low-density lipoprotein particles. A fasting triglyceride level <150 mg/dL is accepted widely as the upper limit of normal range. Guidelines for hypertriglyceridemia are variable without a global consensus on classification and goals for triglyceride levels. A general classification of hypertriglyceridemia is mild < 200 mg/dL, moderate = 200 to 500 mg/dL, moderate to severe = 500 to 1000 mg/dL, and severe > 1000 mg/dL. Because moderate hypertriglyceridemia does increase atherosclerotic cardiovascular disease risk, it is important to determine the underlying etiology to guide appropriate and timely management. This article provides stepwise recommendations on the diagnosis and management of moderate hypertriglyceridemia, based on 3 common scenarios encountered in clinical practice. Initial steps in management include evaluating for secondary contributors, especially diabetes mellitus. Based on patient characteristics, appropriate management decisions include lifestyle adjustments aimed at weight loss and decreasing alcohol consumption and use of statin and nonstatin therapies.
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Affiliation(s)
- Savitha Subramanian
- Division of Metabolism, Endocrinology and Nutrition, University of Washington, Seattle WA, USA
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7
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Li MS, Li Y, Liu Y, Zhou XJ, Zhang H. An Updated Review and Meta Analysis of Lipoprotein Glomerulopathy. Front Med (Lausanne) 2022; 9:905007. [PMID: 35602473 PMCID: PMC9120586 DOI: 10.3389/fmed.2022.905007] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 04/15/2022] [Indexed: 11/13/2022] Open
Abstract
More than 200 cases of lipoprotein glomerulopathy (LPG) have been reported since it was first discovered 30 years ago. Although relatively rare, LPG is clinically an important cause of nephrotic syndrome and end-stage renal disease. Mutations in the APOE gene are the leading cause of LPG. APOE mutations are an important determinant of lipid profiles and cardiovascular health in the population and can precipitate dysbetalipoproteinemia and glomerulopathy. Apolipoprotein E-related glomerular disorders include APOE2 homozygote glomerulopathy and LPG with heterozygous APOE mutations. In recent years, there has been a rapid increase in the number of LPG case reports and some progress in research into the mechanism and animal models of LPG. We consequently need to update recent epidemiological studies and the molecular mechanisms of LPG. This endeavor may help us not only to diagnose and treat LPG in a more personized manner but also to better understand the potential relationship between lipids and the kidney.
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Affiliation(s)
- Meng-Shi Li
- Renal Division, Peking University First Hospital, Beijing, China
- Kidney Genetics Center, Peking University Institute of Nephrology, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
- Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, China
| | - Yang Li
- Renal Division, Peking University First Hospital, Beijing, China
- Kidney Genetics Center, Peking University Institute of Nephrology, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
- Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, China
| | - Yang Liu
- Renal Division, Peking University First Hospital, Beijing, China
- Kidney Genetics Center, Peking University Institute of Nephrology, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
- Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, China
| | - Xu-Jie Zhou
- Renal Division, Peking University First Hospital, Beijing, China
- Kidney Genetics Center, Peking University Institute of Nephrology, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
- Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, China
| | - Hong Zhang
- Renal Division, Peking University First Hospital, Beijing, China
- Kidney Genetics Center, Peking University Institute of Nephrology, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
- Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, China
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Blokhina AV, Ershova AI, Meshkov AN, Drapkina OM. Familial dysbetalipoproteinemia: highly atherogenic and underdiagnosed disorder. КАРДИОВАСКУЛЯРНАЯ ТЕРАПИЯ И ПРОФИЛАКТИКА 2021. [DOI: 10.15829/1728-8800-2021-2893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Familial dysbetalipoproteinemia (FD) is a genetic, highly atherogenic disorder. The penetrance of FD depends on the patient’s lifestyle and concomitant diseases. Despite the fact that FD was described almost half a century ago, it is still insufficiently studied and is extremely rarely diagnosed. In actual clinical practice, physicians do not have clear understanding of clinical course and genetic basis of FD. The aim was to present the most complete, but at the same time a critical review with a modern view on FD. We analyzed Russian and foreign publications from following electronic databases: PubMed, eLIBRARY, Google Scholar. As a result, the phenotypic features and genetic variability of the disease were considered and the main issues of diagnosis and treatment of patients with FD were discussed. The data presented will help the clinician to timely suspect the FD, conduct a full range of investigations and prescribe evidence-based lipid-lowering therapy.
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Affiliation(s)
- A. V. Blokhina
- National Medical Research Center for Therapy and Preventive Medicine
| | - A. I. Ershova
- National Medical Research Center for Therapy and Preventive Medicine
| | - A. N. Meshkov
- National Medical Research Center for Therapy and Preventive Medicine
| | - O. M. Drapkina
- National Medical Research Center for Therapy and Preventive Medicine
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Seedat F, Patel M, Phillip V, Mohamed F, Marais AD, Blackhurst DM, Solomon G, Currin S, Raal FJ. Hyperlipidemic myeloma, a rare form of acquired dysbetalipoproteinemia, in an HIV seropositive African female. Clin Chim Acta 2021; 520:71-75. [PMID: 34052205 DOI: 10.1016/j.cca.2021.05.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 05/25/2021] [Accepted: 05/25/2021] [Indexed: 11/16/2022]
Abstract
Dysbetalipoproteinemia (DBL) is an uncommon condition characterized by a mixed hyperlipidemia due to accumulation of remnant lipoproteins and is highly atherogenic. Typically, DBL is an autosomal recessive condition requiring an additional metabolic stress with reduced apolipoprotein E (apoE) function. However, DBL is also described in patients with multiple myeloma without the characteristic apoE2/E2 mutation seen in familial DBL. Although the underlying pathogenesis in these cases is not fully characterized, it is thought to occur due to interference with apoE function by antibodies produced from clonal plasma cells. Such cases are referred to as hyperlipidemic myeloma (HLM) and have rarely been described in the literature. To our knowledge there is no prior description of HLM in HIV positive patients in Africa. We describe a case of HLM in an African woman with underlying HIV infection who presented with phenotypic and biochemical features of DBL that responded poorly to lipid lowering therapy.
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Affiliation(s)
- Faheem Seedat
- Division of Endocrinology and Metabolism, Department of Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
| | - Moosa Patel
- Division of Clinical Hematology, Department of Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Vinitha Phillip
- Division of Clinical Hematology, Department of Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Farzahna Mohamed
- Division of Endocrinology and Metabolism, Department of Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - A David Marais
- Division of Chemical Pathology, University of Cape Town Health Science Faculty, Cape Town, South Africa
| | - Dee M Blackhurst
- Division of Chemical Pathology, University of Cape Town Health Science Faculty, Cape Town, South Africa
| | - Gabriele Solomon
- Division of Chemical Pathology, University of Cape Town Health Science Faculty, Cape Town, South Africa
| | - Sean Currin
- Department of Chemical Pathology, University of the Witwatersrand and National Health Laboratory Service, Johannesburg, South Africa
| | - Frederick J Raal
- Division of Endocrinology and Metabolism, Department of Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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Vargas-Vázquez A, Bello-Chavolla OY, Antonio-Villa NE, Mehta R, Cruz-Bautista I, Aguilar-Salinas CA. Comparative assessment of LDL-C and VLDL-C estimation in familial combined hyperlipidemia using Sampson's, Martin's and Friedewald's equations. Lipids Health Dis 2021; 20:46. [PMID: 33952259 PMCID: PMC8101115 DOI: 10.1186/s12944-021-01471-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 04/20/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Sampson et al. developed a novel method to estimate very low-density lipoprotein cholesterol (VLDL-C) and low-density lipoprotein cholesterol (LDL-C) in the setting of hypertriglyceridemia. Familial Combined Hyperlipidemia (FCHL) is a common primary dyslipidemia in which lipoprotein composition interferes with LDL-C estimation. This study aimed to evaluate performance of LDL-C using this new method (LDL-S) compared with LDL-C estimated by Friedewald's and Martin eq. (LDL-F, LDL-M) in FCHL. METHODS Data were collected from 340 subjects with confirmed FCHL. Concordance for VLDL-C measured by ultracentrifugation and LDL-C estimated using these measures compared to Sampson's, Martin's and Friedewald's equations was performed using correlation coefficients, root mean squared error (RMSE) and bias. Also, concordance of misclassified metrics according to LDL-C (< 70 and < 100 mg/dL) and Apo B (< 80 and < 65 mg/dL) thresholds were assessed. RESULTS Sampson's equation was more accurate (RMSE 11.21 mg/dL; R2 = 0.88) compared to Martin's (RMSE 13.15 mg/dL; R2 = 0.875) and the Friedewald's equation (RMSE 13.7 mg/dL; R2 = 0.869). When assessing performance according to LDL-C, Sampson's had highest correlation and lowest RMSE compared to other equations (RMSE 19.99 mg/dL; R2 = 0.840). Comparing performance strength across triglyceride levels, Sampson's showed consistently improved correlations compared to Martin's and Friedewald's formulas for increasing triglycerides and for the FCHL phenotype of mixed dyslipidemia. Sampson's also had improved concordance with treatment goals. CONCLUSIONS In FCHL, VLDL-C and LDL-C estimation using Sampson's formula showed higher concordance with lipid targets assessed using VLDL-C obtained by ultracentrifugation compared with Friedewald's and Martin's equations. Implementation of Sampson's formula could improve treatment monitoring in FCHL.
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Affiliation(s)
- Arsenio Vargas-Vázquez
- Unidad de Investigación de Enfermedades Metabólicas, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
- MD/PhD (PECEM) program, Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Omar Yaxmehen Bello-Chavolla
- Unidad de Investigación de Enfermedades Metabólicas, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
- Dirección de Investigación, Instituto Nacional de Geriatría, Mexico City, Mexico
| | - Neftali Eduardo Antonio-Villa
- Unidad de Investigación de Enfermedades Metabólicas, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
- MD/PhD (PECEM) program, Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Roopa Mehta
- Unidad de Investigación de Enfermedades Metabólicas, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
- Departamento de Endocrinología y Metabolismo, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Ivette Cruz-Bautista
- Unidad de Investigación de Enfermedades Metabólicas, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Carlos A Aguilar-Salinas
- Unidad de Investigación de Enfermedades Metabólicas, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.
- Departamento de Endocrinología y Metabolismo, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.
- Instituto Tecnologico y de Estudios Superiores de Monterrey Tec Salud, Mexico City, Mexico.
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Cenarro A, Bea AM, Gracia-Rubio I, Civeira F. Dysbetalipoproteinemia and other lipid abnormalities related to apo E. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS : PUBLICACION OFICIAL DE LA SOCIEDAD ESPANOLA DE ARTERIOSCLEROSIS 2021; 33 Suppl 2:50-55. [PMID: 34006354 DOI: 10.1016/j.arteri.2021.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 01/10/2021] [Indexed: 11/30/2022]
Abstract
Dysbetalipoproteinaemia (or type III hyperlipoproteinaemia) is a severe mixed hyperlipidaemia resulting from the accumulation of remnant chylomicron and VLDL particles in plasma, also called β-VLDL. It is caused by a defect in the recognition by hepatic LDL and lipoprotein receptor-related protein (LRP) of β-VLDL. Mutations in the APOE gene, especially in subjects homozygous for the ɛ2/ɛ2 allele, are responsible for this lack of receptor recognition. Dysbetalipoproteinaemia represents 2-5% of the mixed dyslipidaemias seen in Lipid Units, is highly atherogenic and predisposes to diffuse atheromatosis, either coronary, peripheral vascular, or carotid, so early diagnosis and treatment is necessary. The presence of hypertriglyceridaemia, with non-HDL cholesterol/apolipoprotein B ratios>1.43 (in mg/dL) followed by APOE genotyping is the method of choice in the diagnosis of dysbetalipoproteinaemia. It is a dyslipidaemia that responds well to hygienic-dietary treatment, although the combination of statin and fenofibrate is often necessary to achieve optimal control.
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Affiliation(s)
- Ana Cenarro
- Unidad de Lípidos, Servicio de Medicina Interna, Hospital Universitario Miguel Servet, IIS Aragón, CIBERCV, Universidad de Zaragoza, Zaragoza, España
| | - Ana M Bea
- Unidad de Lípidos, Servicio de Medicina Interna, Hospital Universitario Miguel Servet, IIS Aragón, CIBERCV, Universidad de Zaragoza, Zaragoza, España
| | - Irene Gracia-Rubio
- Unidad de Lípidos, Servicio de Medicina Interna, Hospital Universitario Miguel Servet, IIS Aragón, CIBERCV, Universidad de Zaragoza, Zaragoza, España
| | - Fernando Civeira
- Unidad de Lípidos, Servicio de Medicina Interna, Hospital Universitario Miguel Servet, IIS Aragón, CIBERCV, Universidad de Zaragoza, Zaragoza, España.
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Abstract
PURPOSE OF REVIEW The relationship between elevated triglyceride levels (i.e. hypertriglyceridemia) and risk of atherosclerotic cardiovascular disease (ASCVD) has been investigated for decades. Recent genetic studies have sought to resolve the decades-old question of a causal relationship. RECENT FINDINGS Genetic studies seem to demonstrate associations between elevated triglyceride levels and ASCVD risk. Mendelian randomization studies suggest this association may be causal. However, simultaneous pleiotropic effects of metabolically linked lipid variables - such as non-HDL cholesterol, apolipoprotein B and HDL cholesterol -- often go unaccounted for in these studies. Complex underlying pleiotropic interactions of triglycerides with these lipid fractions together with unmeasured intercalated nonlipid-related mechanisms, such as inflammation and coagulation, impair the ability of genetic studies to implicate a direct role for triglycerides on ASCVD risk. One potential mechanism seems largely driven by the cholesterol carried within triglyceride-rich lipoproteins and their remnants, rather than their triglyceride content. SUMMARY Although the exact mechanisms linking elevated triglyceride levels to ASCVD remain to be determined, new therapeutics that reduce triglyceride levels might be advantageous in certain patients. Newer investigational triglyceride-lowering therapies derived from human genetics target key proteins, such as apo C-III and ANGPTL3. Although these treatments clearly lower triglyceride levels, their efficacy in atherosclerotic risk reduction remains unproven.
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