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Nusinovici S, Zhou L, Wang X, Tham YC, Wang X, Wong TY, Chakravarthy U, Cheng CY. Contributions of Lipid-Related Metabolites and Complement Proteins to Early and Intermediate Age-Related Macular Degeneration. OPHTHALMOLOGY SCIENCE 2024; 4:100538. [PMID: 39051044 PMCID: PMC11268342 DOI: 10.1016/j.xops.2024.100538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/08/2024] [Accepted: 04/19/2024] [Indexed: 07/27/2024]
Abstract
Objective Our objective was to determine the effects of lipids and complement proteins on early and intermediate age-related macular degeneration (AMD) stages using machine learning models by integrating metabolomics and proteomic data. Design Nested case-control study. Subjects and Controls The analyses were performed in a subset of the Singapore Indian Chinese Cohort (SICC) Eye Study. Among the 6753 participants, we randomly selected 155 Indian and 155 Chinese cases of AMD and matched them with 310 controls on age, sex, and ethnicity. Methods We measured 35 complement proteins and 56 lipids using mass spectrometry and nuclear magnetic resonance, respectively. We first selected the most contributing lipids and complement proteins to early and intermediate AMD using random forest models. Then, we estimated their effects using a multinomial model adjusted for potential confounders. Main Outcome Measures Age-related macular degeneration was classified using the Beckman classification system. Results Among the 310 individuals with AMD, 166 (53.5%) had early AMD, and 144 (46.5%) had intermediate AMD. First, high-density lipoprotein (HDL) particle diameter was positively associated with both early and intermediate AMD (odds ratio [OR]early = 1.69; 95% confidence interval [CI],1.11-2.55 and ORintermediate = 1.72; 95% CI, 1.11-2.66 per 1-standard deviation increase in HDL diameter). Second, complement protein 2 (C2), complement C1 inhibitor (IC1), complement protein 6 (C6), complement protein 1QC (C1QC) and complement factor H-related protein 1 (FHR1), were associated with AMD. C2 was positively associated with both early and intermediate AMD (ORearly = 1.58; 95% CI, 1.08-2.30 and ORintermediate = 1.56; 95% CI, 1.04-2.34). C6 was positively (ORearly = 1.41; 95% CI, 1.03-1.93) associated with early AMD. However, IC1 was negatively associated with early AMD (ORearly = 0.62; 95% CI, 0.38-0.99), whereas C1QC (ORintermediate = 0.63; 95% CI, 0.42-0.93) and FHR1 (ORintermediate = 0.73; 95% CI, 0.54-0.98) were both negatively associated with intermediate AMD. Conclusions Although both HDL diameter and C2 levels show associations with both early and intermediate AMD, dysregulations of IC1, C6, C1QC, and FHR1 are only observed at specific stages of AMD. These findings underscore the complexity of complement system dysregulation in AMD, which appears to vary depending on the disease severity. Financial Disclosures The authors have no proprietary or commercial interest in any materials discussed in this article.
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Affiliation(s)
- Simon Nusinovici
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore
| | - Lei Zhou
- School of Optometry; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong
| | - Xinyue Wang
- School of Optometry; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong
| | - Yih Chung Tham
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore
| | - Xiaomeng Wang
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A∗STAR), Singapore
| | - Tien Yin Wong
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore
- Tsinghua Medicine, Tsinghua University, Beijing, China
| | | | - Ching-Yu Cheng
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Centre for Innovation and Precision Eye Health, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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Lutomski CA, El-Baba TJ, Clemmer DE, Jarrold MF. Thermal Remodeling of Human HDL Particles Reveals Diverse Subspecies. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2024; 35:2002-2007. [PMID: 39051481 PMCID: PMC11311237 DOI: 10.1021/jasms.4c00228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 07/14/2024] [Accepted: 07/16/2024] [Indexed: 07/27/2024]
Abstract
High-density lipoproteins (HDL) are micelle-like particles consisting of a core of triglycerides and cholesteryl esters surrounded by a shell of phospholipid, cholesterol, and apolipoproteins. HDL is considered "good" cholesterol, and its concentration in plasma is used clinically in assessing cardiovascular health. However, these particles vary in structure, composition, and therefore function, and thus can be resolved into subpopulations, some of which have specific cardioprotective properties. Mass measurements of HDL by charge detection mass spectrometry (CD-MS) previously revealed seven distinct subpopulations which could be delineated by mass and charge [Lutomski, C. A. et al. Anal. Chem. 2018]. Here, we investigate the thermal stabilities of these subpopulations; upon heating, the particles within each subpopulation undergo structural rearrangements with distinct transition temperatures. In addition, we find evidence for many new families of structures within each subpopulation; at least 15 subspecies of HDL are resolved. These subspecies vary in size, charge, and thermal stability. While this suggests that these new subspecies have unique molecular compositions, we cannot rule out the possibility that we have found evidence for new structural forms within the known subpopulations. The ability to resolve new subspecies of HDL particles may be important in understanding and delineating the role of unique particles in cardiovascular health and disease.
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Affiliation(s)
- Corinne A. Lutomski
- Department
of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, Indiana 47405, United States
| | - Tarick J. El-Baba
- Department
of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, Indiana 47405, United States
| | - David E. Clemmer
- Department
of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, Indiana 47405, United States
| | - Martin F. Jarrold
- Department
of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, Indiana 47405, United States
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3
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Chen Q, Abudukeremu A, Li K, Zheng M, Li H, Huang T, Huang C, Wen K, Wang Y, Zhang Y. High-Density Lipoprotein Subclasses and Their Role in the Prevention and Treatment of Cardiovascular Disease: A Narrative Review. Int J Mol Sci 2024; 25:7856. [PMID: 39063097 PMCID: PMC11277419 DOI: 10.3390/ijms25147856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 07/08/2024] [Accepted: 07/10/2024] [Indexed: 07/28/2024] Open
Abstract
The association between high-density lipoprotein cholesterol (HDL-C) and cardiovascular disease (CVD) is controversial. HDL-C is one content type of high-density lipoprotein (HDL). HDL consists of diverse proteins and lipids and can be classified into different subclasses based on size, shape, charge, and density, and can change dynamically in disease states. Therefore, HDL-C levels alone cannot represent HDLs' cardioprotective role. In this review, we summarized the methods for separating HDL subclasses, the studies on the association between HDL subclasses and cardiovascular risk (CVR), and the impact of lipid-modifying medications and nonpharmacological approaches (exercise training, dietary omega fatty acids, and low-density lipoprotein apheresis) on HDL subclasses. As HDL is a natural nanoplatform, recombinant HDLs (rHDLs) have been used as a delivery system in vivo by loading small interfering RNA, drugs, contrast agents, etc. Therefore, we further reviewed the HDL subclasses used in rHDLs and their advantages and disadvantages. This review would provide recommendations and guidance for future studies on HDL subclasses' cardioprotective roles.
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Affiliation(s)
- Qiaofei Chen
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; (Q.C.); (A.A.); (M.Z.); (H.L.); (T.H.); (C.H.); (K.W.); (Y.W.)
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
- Nanhai Translational Innovation Center of Precision Immunology, Sun Yat-sen Memorial Hospital, Foshan 528200, China
| | - Ayiguli Abudukeremu
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; (Q.C.); (A.A.); (M.Z.); (H.L.); (T.H.); (C.H.); (K.W.); (Y.W.)
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
- Nanhai Translational Innovation Center of Precision Immunology, Sun Yat-sen Memorial Hospital, Foshan 528200, China
| | - Kaiwen Li
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510120, China;
| | - Minglong Zheng
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; (Q.C.); (A.A.); (M.Z.); (H.L.); (T.H.); (C.H.); (K.W.); (Y.W.)
| | - Hongwei Li
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; (Q.C.); (A.A.); (M.Z.); (H.L.); (T.H.); (C.H.); (K.W.); (Y.W.)
| | - Tongsheng Huang
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; (Q.C.); (A.A.); (M.Z.); (H.L.); (T.H.); (C.H.); (K.W.); (Y.W.)
| | - Canxia Huang
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; (Q.C.); (A.A.); (M.Z.); (H.L.); (T.H.); (C.H.); (K.W.); (Y.W.)
| | - Kexin Wen
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; (Q.C.); (A.A.); (M.Z.); (H.L.); (T.H.); (C.H.); (K.W.); (Y.W.)
| | - Yue Wang
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; (Q.C.); (A.A.); (M.Z.); (H.L.); (T.H.); (C.H.); (K.W.); (Y.W.)
| | - Yuling Zhang
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; (Q.C.); (A.A.); (M.Z.); (H.L.); (T.H.); (C.H.); (K.W.); (Y.W.)
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
- Nanhai Translational Innovation Center of Precision Immunology, Sun Yat-sen Memorial Hospital, Foshan 528200, China
- Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou 510080, China
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Costacou T, Vaisar T, Miller RG, Davidson WS, Heinecke JW, Orchard TJ, Bornfeldt KE. High-Density Lipoprotein Particle Concentration and Size Predict Incident Coronary Artery Disease Events in a Cohort With Type 1 Diabetes. J Am Heart Assoc 2024; 13:e034763. [PMID: 38958152 PMCID: PMC11292758 DOI: 10.1161/jaha.123.034763] [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: 02/01/2024] [Accepted: 05/20/2024] [Indexed: 07/04/2024]
Abstract
BACKGROUND The cholesterol efflux capacity of high density lipoprotein (HDL) is negatively associated with cardiovascular risk. Small HDL particles account almost quantitatively for cholesterol efflux capacity, perhaps mediated through efflux of cholesterol and outer leaflet plasma membrane phospholipids by ABCA1 (ATP binding cassette subfamily A member 1). People with type 1 diabetes are at increased coronary artery disease (CAD) risk despite normal HDL-cholesterol concentrations. We therefore tested the hypothesis that small HDL particles (HDL-P)-rather than HDL-cholesterol-predict incident CAD in type 1 diabetes. METHODS AND RESULTS Incident CAD (CAD death, myocardial infarction, or coronary revascularization) was determined in 550 individuals with childhood-onset type 1 diabetes. HDL-P was quantified by calibrated ion mobility analysis and cholesterol efflux capacity was quantified with validated assays. During a median follow-up of 26 years, 36.5% of the participants developed incident CAD, for an incidence density of 181.3 per 10 000 person-years. In multivariable Cox models, neither HDL-cholesterol nor apolipoprotein A1 concentration was significantly associated with CAD risk. In contrast, higher extra-small HDL-P concentrations were significantly associated with decreased CAD risk (hazard ratio [HR], 0.26 [95% CI, 0.14-0.50]). Weaker associations were observed for total HDL-P (HR, 0.88 [95% CI, 0.83-0.93]), small HDL (HR, 0.83 [95% CI, 0.68-1.02]), medium HDL (HR, 0.79 [95% CI, 0.71-0.89]), and large HDL (HR, 0.72 [95% CI, 0.59-0.89]). Although cholesterol efflux capacity was negatively associated with incident CAD, this association was no longer significant after adjustment for total HDL-P. CONCLUSIONS Lower concentrations of total HDL-P and HDL subpopulations were positively associated with incident CAD independently of HDL-cholesterol, apolipoprotein A1, and other common CVD risk factors. Extra-small HDL was a much stronger predictor of risk than the other HDLs. Our data are consistent with the proposal that extra-small HDL plays a critical role in cardioprotection in type 1 diabetes, mediated by macrophage cholesterol efflux by the ABCA1 pathway.
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Affiliation(s)
- Tina Costacou
- Department of EpidemiologyUniversity of PittsburghPittsburghPA
| | - Tomas Vaisar
- Department of MedicineUniversity of WashingtonSeattleWA
| | | | - W. Sean Davidson
- Department of Pathology and Laboratory MedicineUniversity of Cincinnati College of MedicineCincinnatiOH
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Kothari V, Ho TW, Cabodevilla AG, He Y, Kramer F, Shimizu-Albergine M, Kanter JE, Snell-Bergeon J, Fisher EA, Shao B, Heinecke JW, Wobbrock JO, Lee WL, Goldberg IJ, Vaisar T, Bornfeldt KE. Imbalance of APOB Lipoproteins and Large HDL in Type 1 Diabetes Drives Atherosclerosis. Circ Res 2024; 135:335-349. [PMID: 38828596 PMCID: PMC11223987 DOI: 10.1161/circresaha.123.323100] [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: 06/05/2023] [Revised: 04/25/2024] [Accepted: 05/16/2024] [Indexed: 06/05/2024]
Abstract
BACKGROUND Individuals with type 1 diabetes (T1D) generally have normal or even higher HDL (high-density lipoprotein)-cholesterol levels than people without diabetes yet are at increased risk for atherosclerotic cardiovascular disease (CVD). Human HDL is a complex mixture of particles that can vary in cholesterol content by >2-fold. To investigate if specific HDL subspecies contribute to the increased atherosclerosis associated with T1D, we created mouse models of T1D that exhibit human-like HDL subspecies. We also measured HDL subspecies and their association with incident CVD in a cohort of people with T1D. METHODS We generated LDL receptor-deficient (Ldlr-/-) mouse models of T1D expressing human APOA1 (apolipoprotein A1). Ldlr-/-APOA1Tg mice exhibited the main human HDL subspecies. We also generated Ldlr-/-APOA1Tg T1D mice expressing CETP (cholesteryl ester transfer protein), which had lower concentrations of large HDL subspecies versus mice not expressing CETP. HDL particle concentrations and sizes and proteins involved in lipoprotein metabolism were measured by calibrated differential ion mobility analysis and targeted mass spectrometry in the mouse models of T1D and in a cohort of individuals with T1D. Endothelial transcytosis was analyzed by total internal reflection fluorescence microscopy. RESULTS Diabetic Ldlr-/-APOA1Tg mice were severely hyperglycemic and hyperlipidemic and had markedly elevated plasma APOB levels versus nondiabetic littermates but were protected from the proatherogenic effects of diabetes. Diabetic Ldlr-/-APOA1Tg mice expressing CETP lost the atheroprotective effect and had increased lesion necrotic core areas and APOB accumulation, despite having lower plasma APOB levels. The detrimental effects of low concentrations of larger HDL particles in diabetic mice expressing CETP were not explained by reduced cholesterol efflux. Instead, large HDL was more effective than small HDL in preventing endothelial transcytosis of LDL mediated by scavenger receptor class B type 1. Finally, in humans with T1D, increased concentrations of larger HDL particles relative to APOB100 negatively predicted incident CVD independently of HDL-cholesterol levels. CONCLUSIONS Our results suggest that the balance between APOB lipoproteins and the larger HDL subspecies contributes to atherosclerosis progression and incident CVD in the setting of T1D and that larger HDLs exert atheroprotective effects on endothelial cells rather than by promoting macrophage cholesterol efflux.
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MESH Headings
- Adult
- Animals
- Female
- Humans
- Male
- Mice
- Middle Aged
- Apolipoprotein A-I/blood
- Apolipoprotein A-I/metabolism
- Apolipoprotein B-100/metabolism
- Apolipoprotein B-100/genetics
- Apolipoprotein B-100/blood
- Atherosclerosis/metabolism
- Atherosclerosis/genetics
- Atherosclerosis/blood
- Atherosclerosis/pathology
- Cholesterol Ester Transfer Proteins/genetics
- Cholesterol Ester Transfer Proteins/metabolism
- Cholesterol Ester Transfer Proteins/blood
- Diabetes Mellitus, Type 1/metabolism
- Diabetes Mellitus, Type 1/blood
- Disease Models, Animal
- Lipoproteins, HDL/blood
- Lipoproteins, HDL/metabolism
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Transgenic
- Receptors, LDL/genetics
- Receptors, LDL/deficiency
- Receptors, LDL/metabolism
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Affiliation(s)
- Vishal Kothari
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, UW Medicine Diabetes Institute (V.K., Y.H., F.K., M.S.-A., J.E.K., B.S., J.W.H., T.V., K.E.B.)
| | - Tse W.W. Ho
- Keenan Centre for Biomedical Research, St. Michael’s Hospital, Toronto, Canada (T.W.W.H., W.L.L.)
- Department of Laboratory Medicine and Pathobiology (T.W.W.H., W.L.L.)
| | | | - Yi He
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, UW Medicine Diabetes Institute (V.K., Y.H., F.K., M.S.-A., J.E.K., B.S., J.W.H., T.V., K.E.B.)
| | - Farah Kramer
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, UW Medicine Diabetes Institute (V.K., Y.H., F.K., M.S.-A., J.E.K., B.S., J.W.H., T.V., K.E.B.)
| | - Masami Shimizu-Albergine
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, UW Medicine Diabetes Institute (V.K., Y.H., F.K., M.S.-A., J.E.K., B.S., J.W.H., T.V., K.E.B.)
| | - Jenny E. Kanter
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, UW Medicine Diabetes Institute (V.K., Y.H., F.K., M.S.-A., J.E.K., B.S., J.W.H., T.V., K.E.B.)
| | - Janet Snell-Bergeon
- Barbara Davis Center for Diabetes, University of Colorado Denver, Aurora (J.S.-B.)
| | - Edward A. Fisher
- Division of Cardiology, Department of Medicine, New York University Grossman School of Medicine (E.A.F.)
| | - Baohai Shao
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, UW Medicine Diabetes Institute (V.K., Y.H., F.K., M.S.-A., J.E.K., B.S., J.W.H., T.V., K.E.B.)
| | - Jay W. Heinecke
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, UW Medicine Diabetes Institute (V.K., Y.H., F.K., M.S.-A., J.E.K., B.S., J.W.H., T.V., K.E.B.)
| | | | - Warren L. Lee
- Keenan Centre for Biomedical Research, St. Michael’s Hospital, Toronto, Canada (T.W.W.H., W.L.L.)
- Department of Laboratory Medicine and Pathobiology (T.W.W.H., W.L.L.)
- Interdepartmental Division of Critical Care and the Department of Biochemistry, University of Toronto, Canada (W.L.L.)
| | - Ira J. Goldberg
- Division of Endocrinology, Diabetes and Metabolism (A.G.C., I.J.G.)
| | - Tomas Vaisar
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, UW Medicine Diabetes Institute (V.K., Y.H., F.K., M.S.-A., J.E.K., B.S., J.W.H., T.V., K.E.B.)
| | - Karin E. Bornfeldt
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, UW Medicine Diabetes Institute (V.K., Y.H., F.K., M.S.-A., J.E.K., B.S., J.W.H., T.V., K.E.B.)
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle (K.E.B.)
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Martagon AJ, Zubirán R, González-Arellanes R, Praget-Bracamontes S, Rivera-Alcántara JA, Aguilar-Salinas CA. HDL abnormalities in type 2 diabetes: Clinical implications. Atherosclerosis 2024; 394:117213. [PMID: 37580206 DOI: 10.1016/j.atherosclerosis.2023.117213] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 07/30/2023] [Accepted: 08/02/2023] [Indexed: 08/16/2023]
Abstract
Atherosclerotic cardiovascular disease (ASCVD) represents the primary cause of mortality among patients with Type 2 Diabetes Mellitus (T2DM). In this population, High-Density Lipoprotein (HDL) particles exhibit abnormalities in number, composition, and function, culminating in diminished anti-atherosclerotic capabilities despite normal HDL cholesterol (HDL-C) concentrations. Hyperglycemic conditions contribute to these alterations in HDL kinetics, composition, and function, causing T2DM patients' HDL particles to exhibit decreased concentrations of diverse lipid species and proteins. Treatment of hyperglycemia has the potential to correct abnormal HDL particle attributes in T2DM; however, pharmacological interventions, including metformin and thiazolidinediones, yield inconsistent outcomes with respect to HDL-C concentrations and functionality. Despite numerous attempts with diverse drugs, pharmacologically augmenting HDL-C levels has not resulted in clinical benefits in mitigating ASCVD risk. In contrast, reducing Low Density Lipoprotein cholesterol (LDL-C) via statins and ezetimibe has demonstrated significant efficacy in curtailing CVD risk among T2DM individuals. Promising results have been observed in animal models and early-phase trials utilizing recombinant HDL and Lecitin Cholesterol Acyl Transferase (LCAT) -enhancing agents, but the evaluation of their efficacy and safety in large-scale clinical trials is ongoing. While aberrant HDL metabolism constitutes a prevalent aspect of dyslipidemia in T2DM, HDL cholesterol concentrations and composition no longer offer valuable insights for informing therapeutic decisions. Nevertheless, HDL metabolism remains a critical research area in T2DM, necessitating further investigation to elucidate the role of HDL particles in the development of diabetes-associated complications.
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Affiliation(s)
- Alexandro J Martagon
- Unidad de Investigación de Enfermedades Metabólicas Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, Mexico; Institute for Obesity Research, Tecnologico de Monterrey, México City, Mexico; Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, México City, Mexico
| | - Rafael Zubirán
- Unidad de Investigación de Enfermedades Metabólicas Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, Mexico
| | | | - Samantha Praget-Bracamontes
- Unidad de Investigación de Enfermedades Metabólicas Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, Mexico
| | | | - Carlos A Aguilar-Salinas
- Unidad de Investigación de Enfermedades Metabólicas Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, Mexico; Dirección de Investigación, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, Mexico; Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, México City, Mexico; Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Beirut, Lebanon.
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7
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Everett BM, Siqueira ARO. Looking Under the Hood of the "Good" Cholesterol. JACC. HEART FAILURE 2024; 12:1254-1256. [PMID: 38960520 DOI: 10.1016/j.jchf.2024.04.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Accepted: 04/30/2024] [Indexed: 07/05/2024]
Affiliation(s)
- Brendan M Everett
- Divisions of Cardiovascular and Preventive Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.
| | - Amanda R O Siqueira
- Divisions of Cardiovascular and Preventive Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA; Paulista Institute of Cardiovascular Diseases, São Paulo, Brazil
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8
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Turecamo S, Downie CG, Wolska A, Mora S, Otvos JD, Connelly MA, Remaley AT, Conners KM, Joo J, Sampson M, Bielinski SJ, Shearer JJ, Roger VL. Lipoprotein Insulin Resistance Score and Mortality Risk Stratification in Heart Failure. Am J Med 2024; 137:640-648. [PMID: 38583752 PMCID: PMC11213682 DOI: 10.1016/j.amjmed.2024.03.033] [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: 03/06/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND Higher total serum cholesterol is associated with lower mortality in heart failure. Evaluating associations between lipoprotein subfractions and mortality among people with heart failure may provide insights into this observation. METHODS We prospectively enrolled a community cohort of people with heart failure from 2003 to 2012 and assessed vital status through 2021. Plasma collected at enrollment was used to measure lipoprotein subfractions via nuclear magnetic resonance spectroscopy. A composite score of 6 lipoprotein subfractions was generated using the lipoprotein insulin resistance index (LP-IR) algorithm. Using covariate-adjusted proportional hazards regression models, we evaluated associations between LP-IR score and all-cause mortality. RESULTS Among 1382 patients with heart failure (median follow-up 13.9 years), a one-standard-deviation (SD) increment in LP-IR score was associated with lower mortality (hazard ratio [HR] 0.93; 95% confidence interval [CI], 0.97-0.99). Among LP-IR parameters, mean high-density lipoprotein (HDL) particle size was significantly associated with lower mortality (HR per 1-SD decrement in mean HDL particle size = 0.83; 95% CI, 0.78-0.89), suggesting that the inverse association between LP-IR score and mortality may be driven by smaller mean HDL particle size. CONCLUSIONS LP-IR score was inversely associated with mortality among patients with heart failure and may be driven by smaller HDL particle size.
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Affiliation(s)
- Sarah Turecamo
- Heart Disease Phenomics Laboratory, Epidemiology and Community Health Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | - Carolina G Downie
- Heart Disease Phenomics Laboratory, Epidemiology and Community Health Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | - Anna Wolska
- Lipoprotein Metabolism Laboratory, Translational Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | - Samia Mora
- Center for Lipid Metabolomics, Divisions of Preventive and Cardiovascular Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass
| | - James D Otvos
- Lipoprotein Metabolism Laboratory, Translational Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | | | - Alan T Remaley
- Lipoprotein Metabolism Laboratory, Translational Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | - Katherine M Conners
- Heart Disease Phenomics Laboratory, Epidemiology and Community Health Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | - Jungnam Joo
- Office of Biostatistics Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | - Maureen Sampson
- Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD
| | - Suzette J Bielinski
- Division of Epidemiology, Department of Quantitative Health Sciences, Mayo Clinic College of Medicine and Science, Rochester, Minn
| | - Joseph J Shearer
- Heart Disease Phenomics Laboratory, Epidemiology and Community Health Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | - Véronique L Roger
- Heart Disease Phenomics Laboratory, Epidemiology and Community Health Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD.
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9
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Lui DTW, Tan KCB. High-density lipoprotein in diabetes: Structural and functional relevance. J Diabetes Investig 2024; 15:805-816. [PMID: 38416054 PMCID: PMC11215696 DOI: 10.1111/jdi.14172] [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: 01/27/2024] [Revised: 02/14/2024] [Accepted: 02/15/2024] [Indexed: 02/29/2024] Open
Abstract
Low levels of high-density lipoprotein-cholesterol (HDL-C) is considered a major cardiovascular risk factor. However, recent studies have suggested a more U-shaped association between HDL-C and cardiovascular disease. It has been shown that the cardioprotective effect of HDL is related to the functions of HDL particles rather than their cholesterol content. HDL particles are highly heterogeneous and have multiple functions relevant to cardiometabolic conditions including cholesterol efflux capacity, anti-oxidative, anti-inflammatory, and vasoactive properties. There are quantitative and qualitative changes in HDL as well as functional abnormalities in both type 1 and type 2 diabetes. Non-enzymatic glycation, carbamylation, oxidative stress, and systemic inflammation can modify the HDL composition and therefore the functions, especially in situations of poor glycemic control. Studies of HDL proteomics and lipidomics have provided further insights into the structure-function relationship of HDL in diabetes. Interestingly, HDL also has a pleiotropic anti-diabetic effect, improving glycemic control through improvement in insulin sensitivity and β-cell function. Given the important role of HDL in cardiometabolic health, HDL-based therapeutics are being developed to enhance HDL functions rather than to increase HDL-C levels. Among these, recombinant HDL and small synthetic apolipoprotein A-I mimetic peptides may hold promise for preventing and treating diabetes and cardiovascular disease.
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Affiliation(s)
- David Tak Wai Lui
- Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong SARChina
| | - Kathryn Choon Beng Tan
- Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong SARChina
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10
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Zhang X, van der Vorst EPC. High-Density Lipoprotein Modifications: Causes and Functional Consequences in Type 2 Diabetes Mellitus. Cells 2024; 13:1113. [PMID: 38994965 PMCID: PMC11240616 DOI: 10.3390/cells13131113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 06/22/2024] [Accepted: 06/24/2024] [Indexed: 07/13/2024] Open
Abstract
High-density lipoprotein (HDL) is a group of small, dense, and protein-rich lipoproteins that play a role in cholesterol metabolism and various cellular processes. Decreased levels of HDL and HDL dysfunction are commonly observed in individuals with type 2 diabetes mellitus (T2DM), which is also associated with an increased risk for cardiovascular disease (CVD). Due to hyperglycemia, oxidative stress, and inflammation that develop in T2DM, HDL undergoes several post-translational modifications such as glycation, oxidation, and carbamylation, as well as other alterations in its lipid and protein composition. It is increasingly recognized that the generation of HDL modifications in T2DM seems to be the main cause of HDL dysfunction and may in turn influence the development and progression of T2DM and its related cardiovascular complications. This review provides a general introduction to HDL structure and function and summarizes the main modifications of HDL that occur in T2DM. Furthermore, the potential impact of HDL modifications on the pathogenesis of T2DM and CVD, based on the altered interactions between modified HDL and various cell types that are involved in glucose homeostasis and atherosclerotic plaque generation, will be discussed. In addition, some perspectives for future research regarding the T2DM-related HDL modifications are addressed.
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Affiliation(s)
- Xiaodi Zhang
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, 52074 Aachen, Germany;
- Aachen-Maastricht Institute for CardioRenal Disease (AMICARE), RWTH Aachen University, 52074 Aachen, Germany
| | - Emiel P. C. van der Vorst
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, 52074 Aachen, Germany;
- Aachen-Maastricht Institute for CardioRenal Disease (AMICARE), RWTH Aachen University, 52074 Aachen, Germany
- Interdisciplinary Center for Clinical Research (IZKF), RWTH Aachen University, 52074 Aachen, Germany
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University Munich (LMU), 80336 Munich, Germany
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11
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Mahrooz A. Pleiotropic functions and clinical importance of circulating HDL-PON1 complex. Adv Clin Chem 2024; 121:132-171. [PMID: 38797541 DOI: 10.1016/bs.acc.2024.04.003] [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: 05/29/2024]
Abstract
High density lipoprotein (HDL) functions are mostly mediated through a complex proteome, particularly its enzymes. HDL can provide a scaffold for the assembly of several proteins that affect each other's function. HDL particles, particularly small, dense HDL3, are rich in paraoxonase 1 (PON1), which is an important enzyme in the functionality of HDL, so the antioxidant and antiatherogenic properties of HDL are largely attributed to this enzyme. There is an increasing need to represent a valid, reproducible, and reliable method to assay HDL function in routine clinical laboratories. In this context, HDL-associated proteins may be key players; notably PON1 activity (its arylesterase activity) may be a proper candidate because its decreased activity can be considered an important risk factor for HDL dysfunctionality. Of note, automated methods have been developed for the measurement of serum PON1 activity that facilitates its assay in large sample numbers. Arylesterase activity is proposed as a preferred activity among the different activities of PON1 for its assay in epidemiological studies. The binding of PON1 to HDL is critical for the maintenance of its activity and it appears apolipoprotein A-I plays an important role in HDL-PON1 interaction as well as in the biochemical and enzymatic properties of PON1. The interrelationships between HDL, PON1, and HDL's other components are complex and incompletely understood. The purpose of this review is to discuss biochemical and clinical evidence considering the interactions of PON1 with HDL and the role of this enzyme as an appropriate biomarker for HDL function as well as a potential therapeutic target.
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Affiliation(s)
- Abdolkarim Mahrooz
- Immunogenetics Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; Department of Clinical Biochemistry and Medical Genetics, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
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12
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Klobučar I, Habisch H, Klobučar L, Trbušić M, Pregartner G, Berghold A, Kostner GM, Scharnagl H, Madl T, Frank S, Degoricija V. Serum Levels of Adiponectin Are Strongly Associated with Lipoprotein Subclasses in Healthy Volunteers but Not in Patients with Metabolic Syndrome. Int J Mol Sci 2024; 25:5050. [PMID: 38732266 PMCID: PMC11084877 DOI: 10.3390/ijms25095050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/03/2024] [Accepted: 05/03/2024] [Indexed: 05/13/2024] Open
Abstract
Metabolic syndrome (MS) is a widespread disease in developed countries, accompanied, among others, by decreased adiponectin serum levels and perturbed lipoprotein metabolism. The associations between the serum levels of adiponectin and lipoproteins have been extensively studied in the past under healthy conditions, yet it remains unexplored whether the observed associations also exist in patients with MS. Therefore, in the present study, we analyzed the serum levels of lipoprotein subclasses using nuclear magnetic resonance spectroscopy and examined their associations with the serum levels of adiponectin in patients with MS in comparison with healthy volunteers (HVs). In the HVs, the serum levels of adiponectin were significantly negatively correlated with the serum levels of large buoyant-, very-low-density lipoprotein, and intermediate-density lipoprotein, as well as small dense low-density lipoprotein (LDL) and significantly positively correlated with large buoyant high-density lipoprotein (HDL). In patients with MS, however, adiponectin was only significantly correlated with the serum levels of phospholipids in total HDL and large buoyant LDL. As revealed through logistic regression and orthogonal partial least-squares discriminant analyses, high adiponectin serum levels were associated with low levels of small dense LDL and high levels of large buoyant HDL in the HVs as well as high levels of large buoyant LDL and total HDL in patients with MS. We conclude that the presence of MS weakens or abolishes the strong associations between adiponectin and the lipoprotein parameters observed in HVs and disturbs the complex interplay between adiponectin and lipoprotein metabolism.
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Affiliation(s)
- Iva Klobučar
- Department of Cardiology, Sisters of Charity University Hospital Centre, 10000 Zagreb, Croatia; (I.K.); (M.T.)
| | - Hansjörg Habisch
- Otto Loewi Research Center, Medicinal Chemistry, Medical University of Graz, 8010 Graz, Austria; (H.H.); (T.M.)
| | - Lucija Klobučar
- Department of Medicine, University Hospital Centre Osijek, 31000 Osijek, Croatia;
| | - Matias Trbušić
- Department of Cardiology, Sisters of Charity University Hospital Centre, 10000 Zagreb, Croatia; (I.K.); (M.T.)
- School of Medicine, University of Zagreb, 10000 Zagreb, Croatia;
| | - Gudrun Pregartner
- Institute for Medical Informatics, Statistics, and Documentation, Medical University of Graz, 8036 Graz, Austria; (G.P.); (A.B.)
| | - Andrea Berghold
- Institute for Medical Informatics, Statistics, and Documentation, Medical University of Graz, 8036 Graz, Austria; (G.P.); (A.B.)
| | - Gerhard M. Kostner
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria;
| | - Hubert Scharnagl
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, 8036 Graz, Austria;
| | - Tobias Madl
- Otto Loewi Research Center, Medicinal Chemistry, Medical University of Graz, 8010 Graz, Austria; (H.H.); (T.M.)
- BioTechMed-Graz, 8010 Graz, Austria
| | - Saša Frank
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria;
- BioTechMed-Graz, 8010 Graz, Austria
| | - Vesna Degoricija
- School of Medicine, University of Zagreb, 10000 Zagreb, Croatia;
- Department of Medicine, Sisters of Charity University Hospital Centre, 10000 Zagreb, Croatia
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13
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Bonilha I, Gomes ÉIL, Carmo HRP, Breder I, Barreto J, Breder J, Munhoz DB, Carvalho LSF, Quinaglia T, Kimura-Medorima ST, Gossi CM, Zimetti F, Nadruz W, Zanotti I, Sposito AC. Effect of Empagliflozin with or without the Addition of Evolocumab on HDL Subspecies in Individuals with Type 2 Diabetes Mellitus: A Post Hoc Analysis of the EXCEED-BHS3 Trial. Int J Mol Sci 2024; 25:4108. [PMID: 38612917 PMCID: PMC11012560 DOI: 10.3390/ijms25074108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 04/03/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024] Open
Abstract
Evolocumab and empagliflozin yield a modest rise in plasma high-density lipoprotein cholesterol (HDL-C) through unknown mechanisms. This study aims to assess the effect of evolocumab plus empagliflozin vs. empagliflozin alone on HDL subspecies isolated from individuals with type 2 diabetes mellitus (T2D). This post hoc prespecified analysis of the EXCEED-BHS3 trial compared the effects of a 16-week therapy with empagliflozin (E) alone or in combination with evolocumab (EE) on the lipid profile and cholesterol content in HDL subspecies in individuals with T2D divided equally into two groups of 55 patients. Both treatments modestly increased HDL-C. The cholesterol content in HDL subspecies 2a (7.3%), 3a (7.2%) and 3c (15%) increased from baseline in the E group, while the EE group presented an increase from baseline in 3a (9.3%), 3b (16%) and 3c (25%). The increase in HDL 3b and 3c was higher in the EE group when compared to the E group (p < 0.05). No significant interactive association was observed between changes in hematocrit and HDL-C levels after treatment. Over a 16-week period, empagliflozin with or without the addition of evolocumab led to a modest but significant increase in HDL-C. The rise in smaller-sized HDL particles was heterogeneous amongst the treatment combinations.
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Affiliation(s)
- Isabella Bonilha
- Laboratory of Vascular Biology and Atherosclerosis (Aterolab), State University of Campinas (Unicamp), Sao Paulo 13083-887, Brazil; (I.B.); (É.I.L.G.); (H.R.P.C.); (I.B.); (J.B.); (J.B.); (D.B.M.); (L.S.F.C.); (T.Q.); (S.T.K.-M.); (C.M.G.)
| | - Érica Ivana Lázaro Gomes
- Laboratory of Vascular Biology and Atherosclerosis (Aterolab), State University of Campinas (Unicamp), Sao Paulo 13083-887, Brazil; (I.B.); (É.I.L.G.); (H.R.P.C.); (I.B.); (J.B.); (J.B.); (D.B.M.); (L.S.F.C.); (T.Q.); (S.T.K.-M.); (C.M.G.)
| | - Helison R. P. Carmo
- Laboratory of Vascular Biology and Atherosclerosis (Aterolab), State University of Campinas (Unicamp), Sao Paulo 13083-887, Brazil; (I.B.); (É.I.L.G.); (H.R.P.C.); (I.B.); (J.B.); (J.B.); (D.B.M.); (L.S.F.C.); (T.Q.); (S.T.K.-M.); (C.M.G.)
| | - Ikaro Breder
- Laboratory of Vascular Biology and Atherosclerosis (Aterolab), State University of Campinas (Unicamp), Sao Paulo 13083-887, Brazil; (I.B.); (É.I.L.G.); (H.R.P.C.); (I.B.); (J.B.); (J.B.); (D.B.M.); (L.S.F.C.); (T.Q.); (S.T.K.-M.); (C.M.G.)
| | - Joaquim Barreto
- Laboratory of Vascular Biology and Atherosclerosis (Aterolab), State University of Campinas (Unicamp), Sao Paulo 13083-887, Brazil; (I.B.); (É.I.L.G.); (H.R.P.C.); (I.B.); (J.B.); (J.B.); (D.B.M.); (L.S.F.C.); (T.Q.); (S.T.K.-M.); (C.M.G.)
| | - Jessica Breder
- Laboratory of Vascular Biology and Atherosclerosis (Aterolab), State University of Campinas (Unicamp), Sao Paulo 13083-887, Brazil; (I.B.); (É.I.L.G.); (H.R.P.C.); (I.B.); (J.B.); (J.B.); (D.B.M.); (L.S.F.C.); (T.Q.); (S.T.K.-M.); (C.M.G.)
| | - Daniel B. Munhoz
- Laboratory of Vascular Biology and Atherosclerosis (Aterolab), State University of Campinas (Unicamp), Sao Paulo 13083-887, Brazil; (I.B.); (É.I.L.G.); (H.R.P.C.); (I.B.); (J.B.); (J.B.); (D.B.M.); (L.S.F.C.); (T.Q.); (S.T.K.-M.); (C.M.G.)
- Cardiovascular Center Aalst, OLV Clinic, 9300 Aalst, Belgium
| | - Luiz Sergio F. Carvalho
- Laboratory of Vascular Biology and Atherosclerosis (Aterolab), State University of Campinas (Unicamp), Sao Paulo 13083-887, Brazil; (I.B.); (É.I.L.G.); (H.R.P.C.); (I.B.); (J.B.); (J.B.); (D.B.M.); (L.S.F.C.); (T.Q.); (S.T.K.-M.); (C.M.G.)
| | - Thiago Quinaglia
- Laboratory of Vascular Biology and Atherosclerosis (Aterolab), State University of Campinas (Unicamp), Sao Paulo 13083-887, Brazil; (I.B.); (É.I.L.G.); (H.R.P.C.); (I.B.); (J.B.); (J.B.); (D.B.M.); (L.S.F.C.); (T.Q.); (S.T.K.-M.); (C.M.G.)
| | - Sheila T. Kimura-Medorima
- Laboratory of Vascular Biology and Atherosclerosis (Aterolab), State University of Campinas (Unicamp), Sao Paulo 13083-887, Brazil; (I.B.); (É.I.L.G.); (H.R.P.C.); (I.B.); (J.B.); (J.B.); (D.B.M.); (L.S.F.C.); (T.Q.); (S.T.K.-M.); (C.M.G.)
| | - Camila Moreira Gossi
- Laboratory of Vascular Biology and Atherosclerosis (Aterolab), State University of Campinas (Unicamp), Sao Paulo 13083-887, Brazil; (I.B.); (É.I.L.G.); (H.R.P.C.); (I.B.); (J.B.); (J.B.); (D.B.M.); (L.S.F.C.); (T.Q.); (S.T.K.-M.); (C.M.G.)
| | - Francesca Zimetti
- Department of Food and Drug, University of Parma, 43124 Parma, Italy; (F.Z.); (I.Z.)
| | - Wilson Nadruz
- Division of Cardiology, State University of Campinas (Unicamp), Sao Paulo 13083-887, Brazil;
| | - Ilaria Zanotti
- Department of Food and Drug, University of Parma, 43124 Parma, Italy; (F.Z.); (I.Z.)
| | - Andrei C. Sposito
- Laboratory of Vascular Biology and Atherosclerosis (Aterolab), State University of Campinas (Unicamp), Sao Paulo 13083-887, Brazil; (I.B.); (É.I.L.G.); (H.R.P.C.); (I.B.); (J.B.); (J.B.); (D.B.M.); (L.S.F.C.); (T.Q.); (S.T.K.-M.); (C.M.G.)
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14
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Ranasinghe S, Cui Y, Muhyieddeen A, Obrutu O, Wei J, Gulati M, Bittner V, Reis S, Handberg E, Pepine CJ, Merz CNB. Elevated high-density lipoprotein cholesterol and adverse outcomes in women with symptoms of ischemic heart disease. AMERICAN HEART JOURNAL PLUS : CARDIOLOGY RESEARCH AND PRACTICE 2024; 40:100376. [PMID: 38510502 PMCID: PMC10946010 DOI: 10.1016/j.ahjo.2024.100376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 02/22/2024] [Indexed: 03/22/2024]
Abstract
Background Emerging data in the general population and those with coronary artery disease demonstrate higher risk of adverse outcomes with high (>70 mg/dL) HDL-C levels. There are limited data on the risk of adverse outcomes in women with suspected ischemic heart disease. Objective To investigate relationships between high (>70 mg/dL), average (50-70 mg/dL), and low (<50 mg/dL) HDL-C levels with major adverse cardiac events (MACE) (death, myocardial infarction, stroke, and heart failure hospitalization), and all-cause mortality in women referred for coronary angiography for suspected myocardial ischemia. Methods A total of 607 women enrolled in the Women's Ischemia Syndrome Evaluation (WISE) original cohort (NCT00000554) with available HDL-C values were included in this analysis. Associations between HDL-C level and outcomes were evaluated using both multivariate Cox proportional hazard regression and spline regression analysis. Results The mean age was 59 ± 12 years, 62 % had 3 or more cardiac risk factors, and 66 (10.9 %) had a high HDL-C. High and low HDL-C were both associated with higher MACE risk compared to average HDL-C after adjusting for demographic and clinical characteristics (HR 1.80, CI 1.03-3.14, p = 0.038; HR 1.63, CI 1.09-2.42, p = 0.016, respectively). Similarly, high, and low HDL-C were associated with higher risk of all-cause mortality (HR 3.64, CI 1.84-7.20, p < 0.001; HR 2.81, CI 1.67-4.71, p < 0.001, respectively). Conclusions High and low HDL-C levels are both independently associated with higher MACE and all-cause mortality in women with suspected ischemia undergoing coronary angiography.
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Affiliation(s)
- Sachini Ranasinghe
- Barbra Streisand Women's Heart Center, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Yujie Cui
- Biostatistics and Bioinformatics Research Center, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Amer Muhyieddeen
- Barbra Streisand Women's Heart Center, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Okezi Obrutu
- Barbra Streisand Women's Heart Center, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Janet Wei
- Barbra Streisand Women's Heart Center, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Martha Gulati
- Barbra Streisand Women's Heart Center, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Vera Bittner
- Division of Cardiovascular Disease, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States of America
| | - Steven Reis
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Eileen Handberg
- Division of Cardiovascular Medicine, College of Medicine, University of Florida, Gainesville, FL, United States of America
| | - Carl J. Pepine
- Division of Cardiovascular Medicine, College of Medicine, University of Florida, Gainesville, FL, United States of America
| | - C. Noel Bairey Merz
- Barbra Streisand Women's Heart Center, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
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15
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Sych T, Schlegel J, Barriga HMG, Ojansivu M, Hanke L, Weber F, Beklem Bostancioglu R, Ezzat K, Stangl H, Plochberger B, Laurencikiene J, El Andaloussi S, Fürth D, Stevens MM, Sezgin E. High-throughput measurement of the content and properties of nano-sized bioparticles with single-particle profiler. Nat Biotechnol 2024; 42:587-590. [PMID: 37308687 PMCID: PMC11021190 DOI: 10.1038/s41587-023-01825-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 05/10/2023] [Indexed: 06/14/2023]
Abstract
We introduce a method, single-particle profiler, that provides single-particle information on the content and biophysical properties of thousands of particles in the size range 5-200 nm. We use our single-particle profiler to measure the messenger RNA encapsulation efficiency of lipid nanoparticles, the viral binding efficiencies of different nanobodies, and the biophysical heterogeneity of liposomes, lipoproteins, exosomes and viruses.
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Affiliation(s)
- Taras Sych
- Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Solna, Sweden
| | - Jan Schlegel
- Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Solna, Sweden
| | - Hanna M G Barriga
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Miina Ojansivu
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Leo Hanke
- Division of Infectious Diseases, Department of Medicine Solna and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Florian Weber
- Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Solna, Sweden
- Department Medical Engineering, University of Applied Sciences Upper Austria, Linz, Austria
| | | | - Kariem Ezzat
- Department of Laboratory Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Herbert Stangl
- Medical University of Vienna, Center for Pathobiochemistry and Genetics, Institute of Medical Chemistry, Vienna, Austria
| | - Birgit Plochberger
- Department Medical Engineering, University of Applied Sciences Upper Austria, Linz, Austria
- LBG Ludwig Boltzmann Institute for Traumatology, Nanoscopy, Vienna, Austria
| | - Jurga Laurencikiene
- Lipid Laboratory, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | | | - Daniel Fürth
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Molly M Stevens
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
- Department of Materials, Department of Bioengineering and Institute of Biomedical Engineering, Imperial College London, London, UK
| | - Erdinc Sezgin
- Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Solna, Sweden.
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16
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Pascual-Oliver A, Casas-Deza D, Yagüe-Caballero C, Arbones-Mainar JM, Bernal-Monterde V. Lipid Profile and Cardiovascular Risk Modification after Hepatitis C Virus Eradication. Pathogens 2024; 13:278. [PMID: 38668233 PMCID: PMC11054742 DOI: 10.3390/pathogens13040278] [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: 02/05/2024] [Revised: 03/18/2024] [Accepted: 03/21/2024] [Indexed: 04/29/2024] Open
Abstract
The eradication of the hepatitis C virus (HCV) has revolutionized the hepatology paradigm, halting the progression of advanced liver disease in patients with chronic infection and reducing the risk of hepatocarcinoma. In addition, treatment with direct-acting antivirals can reverse the lipid and carbohydrate abnormalities described in HCV patients. Although HCV eradication may reduce the overall risk of vascular events, it is uncertain whether altered lipid profiles increase the risk of cerebrovascular disease in certain patients. We have conducted a review on HCV and lipid and carbohydrate metabolism, as well as new scientific advances, following the advent of direct-acting antivirals.
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Affiliation(s)
- Andrea Pascual-Oliver
- Gastroenterology Department, Miguel Servet University Hospital, 50009 Zaragoza, Spain; (A.P.-O.); (C.Y.-C.); (V.B.-M.)
| | - Diego Casas-Deza
- Gastroenterology Department, Miguel Servet University Hospital, 50009 Zaragoza, Spain; (A.P.-O.); (C.Y.-C.); (V.B.-M.)
- Adipocyte and Fat Biology Laboratory (AdipoFat), Translational Research Unit, University Hospital Miguel Servet, 50009 Zaragoza, Spain;
- Instituto Aragones de Ciencias de la Salud (IACS), 50009 Zaragoza, Spain
- Instituto de Investigación Sanitaria (IIS) Aragon, 50009 Zaragoza, Spain
| | - Carmen Yagüe-Caballero
- Gastroenterology Department, Miguel Servet University Hospital, 50009 Zaragoza, Spain; (A.P.-O.); (C.Y.-C.); (V.B.-M.)
- Adipocyte and Fat Biology Laboratory (AdipoFat), Translational Research Unit, University Hospital Miguel Servet, 50009 Zaragoza, Spain;
- Instituto de Investigación Sanitaria (IIS) Aragon, 50009 Zaragoza, Spain
| | - Jose M. Arbones-Mainar
- Adipocyte and Fat Biology Laboratory (AdipoFat), Translational Research Unit, University Hospital Miguel Servet, 50009 Zaragoza, Spain;
- Instituto Aragones de Ciencias de la Salud (IACS), 50009 Zaragoza, Spain
- Instituto de Investigación Sanitaria (IIS) Aragon, 50009 Zaragoza, Spain
- CIBER Fisiopatología Obesidad y Nutrición (CIBERObn), Instituto Salud Carlos III, 28029 Madrid, Spain
| | - Vanesa Bernal-Monterde
- Gastroenterology Department, Miguel Servet University Hospital, 50009 Zaragoza, Spain; (A.P.-O.); (C.Y.-C.); (V.B.-M.)
- Adipocyte and Fat Biology Laboratory (AdipoFat), Translational Research Unit, University Hospital Miguel Servet, 50009 Zaragoza, Spain;
- Instituto Aragones de Ciencias de la Salud (IACS), 50009 Zaragoza, Spain
- Instituto de Investigación Sanitaria (IIS) Aragon, 50009 Zaragoza, Spain
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17
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He Y, Pavanello C, Hutchins PM, Tang C, Pourmousa M, Vaisar T, Song HD, Pastor RW, Remaley AT, Goldberg IJ, Costacou T, Sean Davidson W, Bornfeldt KE, Calabresi L, Segrest JP, Heinecke JW. Flipped C-Terminal Ends of APOA1 Promote ABCA1-Dependent Cholesterol Efflux by Small HDLs. Circulation 2024; 149:774-787. [PMID: 38018436 PMCID: PMC10913861 DOI: 10.1161/circulationaha.123.065959] [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: 06/13/2023] [Accepted: 11/05/2023] [Indexed: 11/30/2023]
Abstract
BACKGROUND Cholesterol efflux capacity (CEC) predicts cardiovascular disease independently of high-density lipoprotein (HDL) cholesterol levels. Isolated small HDL particles are potent promoters of macrophage CEC by the ABCA1 (ATP-binding cassette transporter A1) pathway, but the underlying mechanisms are unclear. METHODS We used model system studies of reconstituted HDL and plasma from control and lecithin-cholesterol acyltransferase (LCAT)-deficient subjects to investigate the relationships among the sizes of HDL particles, the structure of APOA1 (apolipoprotein A1) in the different particles, and the CECs of plasma and isolated HDLs. RESULTS We quantified macrophage and ABCA1 CEC of 4 distinct sizes of reconstituted HDL. CEC increased as particle size decreased. Tandem mass spectrometric analysis of chemically cross-linked peptides and molecular dynamics simulations of APOA1, the major protein of HDL, indicated that the mobility of C-terminus of that protein was markedly higher and flipped off the surface in the smallest particles. To explore the physiological relevance of the model system studies, we isolated HDL from LCAT-deficient subjects, whose small HDLs (like reconstituted HDLs) are discoidal and composed of APOA1, cholesterol, and phospholipid. Despite their very low plasma levels of HDL particles, these subjects had normal CEC. In both the LCAT-deficient subjects and control subjects, the CEC of isolated extra-small HDL (a mixture of extra-small and small HDL by calibrated ion mobility analysis) was 3- to 5-fold greater than that of the larger sizes of isolated HDL. Incubating LCAT-deficient plasma and control plasma with human LCAT converted extra-small and small HDL particles into larger particles, and it markedly inhibited CEC. CONCLUSIONS We present a mechanism for the enhanced CEC of small HDLs. In smaller particles, the C-termini of the 2 antiparallel molecules of APOA1 are "flipped" off the lipid surface of HDL. This extended conformation allows them to engage with ABCA1. In contrast, the C-termini of larger HDLs are unable to interact productively with ABCA1 because they form a helical bundle that strongly adheres to the lipid on the particle. Enhanced CEC, as seen with the smaller particles, predicts decreased cardiovascular disease risk. Thus, extra-small and small HDLs may be key mediators and indicators of the cardioprotective effects of HDL.
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Affiliation(s)
- Yi He
- Department of Medicine, University of Washington, Seattle (Y.H., P.M.H., C.T., T.V., K.E.B., J.W.H.)
| | - Chiara Pavanello
- Centro Grossi Paoletti, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Italy (C.P., L.C.)
| | - Patrick M. Hutchins
- Department of Medicine, University of Washington, Seattle (Y.H., P.M.H., C.T., T.V., K.E.B., J.W.H.)
| | - Chongren Tang
- Department of Medicine, University of Washington, Seattle (Y.H., P.M.H., C.T., T.V., K.E.B., J.W.H.)
| | - Mohsen Pourmousa
- Laboratory of Computational Biology, National Heart, Lung, and Blood Institute (M.P., R.W.P.), National Institutes of Health, Bethesda, MD
| | - Tomas Vaisar
- Department of Medicine, University of Washington, Seattle (Y.H., P.M.H., C.T., T.V., K.E.B., J.W.H.)
| | - Hyun D. Song
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN (H.D.S., J.P.S.)
| | - Richard W. Pastor
- Laboratory of Computational Biology, National Heart, Lung, and Blood Institute (M.P., R.W.P.), National Institutes of Health, Bethesda, MD
| | - Alan T. Remaley
- Department of Laboratory Medicine (A.T.R.), National Institutes of Health, Bethesda, MD
| | - Ira J. Goldberg
- Department of Medicine, New York University, New York, NY (I.J.G.)
| | - Tina Costacou
- Department of Epidemiology, University of Pittsburgh, PA (T.C.)
| | - W. Sean Davidson
- Department of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, OH (W.S.D.)
| | - Karin E. Bornfeldt
- Department of Medicine, University of Washington, Seattle (Y.H., P.M.H., C.T., T.V., K.E.B., J.W.H.)
| | - Laura Calabresi
- Centro Grossi Paoletti, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Italy (C.P., L.C.)
| | - Jere P. Segrest
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN (H.D.S., J.P.S.)
| | - Jay W. Heinecke
- Department of Medicine, University of Washington, Seattle (Y.H., P.M.H., C.T., T.V., K.E.B., J.W.H.)
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Abstract
The menopausal transition period spans, on average, 2-8 years before the final menstrual period and is associated with an increase in clinical and subclinical cardiovascular risk. In this Review, we discuss the metabolic and cardiovascular changes that occur during the menopausal transition period and the role of ovarian ageing, chronological ageing and other ageing-related risk factors in mediating these changes. Disentangling the relative contributions of chronological and reproductive ageing to cardiovascular risk is challenging, but data from longitudinal studies in women transitioning from premenopause to post-menopause have provided valuable insights. We also discuss evidence on how cardiovascular risk is altered by premature or early menopause, surgical menopause, and vasomotor and other menopausal symptoms. Whether targeted interventions can slow the progression of atherosclerosis and subclinical disease during the menopausal transition, thus delaying or preventing the onset of cardiovascular events, remains to be determined. Furthermore, we consider the recommended strategies for cardiovascular risk reduction in women undergoing menopausal transition using the framework of the American Heart Association's Life's Essential 8 key measures for improving and maintaining cardiovascular health, and discuss the cardiovascular risks and benefits of menopausal hormone therapy. Finally, we also discuss novel therapies that might benefit this population in reducing cardiovascular risk.
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Affiliation(s)
- Jaya M Mehta
- Allegheny General Hospital Internal Medicine, Primary Care Institute, Allegheny Health Network, Pittsburgh, PA, USA.
| | - JoAnn E Manson
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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19
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Heinecke JW, Vaisar T, Bornfeldt KE. Does small HDL's function improve when lipid-lowering alters its composition? J Lipid Res 2024; 65:100505. [PMID: 38246236 PMCID: PMC10884751 DOI: 10.1016/j.jlr.2024.100505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024] Open
Affiliation(s)
- Jay W Heinecke
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - Tomas Vaisar
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - Karin E Bornfeldt
- Department of Medicine, University of Washington, Seattle, WA, USA; Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA.
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20
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Costacou T, Miller RG, Bornfeldt KE, Heinecke JW, Orchard TJ, Vaisar T. Sex differences in the associations of HDL particle concentration and cholesterol efflux capacity with incident coronary artery disease in type 1 diabetes: The RETRO HDLc cohort study. J Clin Lipidol 2024; 18:e218-e229. [PMID: 38320926 PMCID: PMC11069450 DOI: 10.1016/j.jacl.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 01/08/2024] [Accepted: 01/23/2024] [Indexed: 02/08/2024]
Abstract
BACKGROUND In type 1 diabetes, women lose their relative protection (compared to men) against coronary artery disease (CAD), while high-density lipoprotein cholesterol (HDL-C) is less strongly associated with lower CAD risk in women. OBJECTIVE We aimed to assess whether sex differences in the HDL particle concentration (HDL-P) and cholesterol efflux capacity (CEC) association with CAD may explain these findings. METHODS HDL-P (calibrated differential ion mobility analysis) and total and ATP binding cassette transporter A1 (ABCA1)-specific CEC were quantified among 279 men and 271 women with type 1 diabetes (baseline mean age 27·8 years; diabetes duration, 19·6 years). Clinical CAD was defined as CAD death, myocardial infarction and/or coronary revascularization. RESULTS Women had higher large HDL-P levels and marginally lower concentrations of small HDL-P and ABCA1-specific CEC than men. No sex differences were observed in extra-small HDL-P, medium HDL-P and total CEC. During a median follow-up of 26 years, 37·6 % of men and 35·8 % of women developed CAD (p = 0·72). In multivariable Cox models stratified by sex (pTotal HDL-P x sex interaction=0·01), HDL-P was negatively associated with CAD incidence in both sexes. However, associations were stronger in men, particularly for extra-small HDL-P (hazard ratio (HR)men=0·11, 95 % confidence interval (CI): 0·04-0·30; HRwomen=0·68, 95 % CI: 0·28-1·66; pinteraction=0·001). CEC did not independently predict CAD in either sex. CONCLUSION Despite few absolute differences in HDL-P concentrations by sex, the HDL-P - CAD association was weaker in women, particularly for extra-small HDL-P, suggesting that HDL-P may be less efficient in providing atheroprotection in women and perhaps explaining the lack of a sex difference in CAD in type 1 diabetes.
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Affiliation(s)
- Tina Costacou
- Department of Epidemiology (Drs Costacou, Miller, Orchard), School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, United States.
| | - Rachel G Miller
- Department of Epidemiology (Drs Costacou, Miller, Orchard), School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, United States
| | - Karin E Bornfeldt
- Department of Medicine (Drs Bornfeldt, Heinecke, Vaisar), University of Washington, Seattle, WA 98102, United States
| | - Jay W Heinecke
- Department of Medicine (Drs Bornfeldt, Heinecke, Vaisar), University of Washington, Seattle, WA 98102, United States
| | - Trevor J Orchard
- Department of Epidemiology (Drs Costacou, Miller, Orchard), School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, United States
| | - Tomas Vaisar
- Department of Medicine (Drs Bornfeldt, Heinecke, Vaisar), University of Washington, Seattle, WA 98102, United States
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21
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Chen T, Wu S, Feng L, Long S, Liu Y, Lu W, Chen W, Hong G, Zhou L, Wang F, Luo Y, Zou H. The Association of HDL2b with Metabolic Syndrome Among Normal HDL-C Populations in Southern China. Diabetes Metab Syndr Obes 2024; 17:363-377. [PMID: 38288339 PMCID: PMC10822767 DOI: 10.2147/dmso.s446859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/16/2024] [Indexed: 01/31/2024] Open
Abstract
Background The annual prevalence of metabolic syndrome (MetS) is increasing. Therefore, early screening and recognition of MetS are critical. This study aimed to evaluate the association between high-density lipoprotein (HDL) subclasses and MetS and to examine whether they could serve as early indicators in a Chinese community-based population with normal high-density lipoprotein cholesterol (HDL-C) levels. Methods We used microfluidic chip technology to measure HDL subclasses in 463 people with normal HDL levels in 2018. We assessed how HDL subclasses correlated with and predicted insulin resistance (IR) and metabolic syndrome (MetS), evaluated by homeostatic model insulin resistance index (HOMA-IR) and the 2009 International Diabetes Federation (IDF), the American Heart Association (AHA), and the National Heart, Lung, and Blood Institute (NHLBI) criteria, respectively. We used correlation tests and ROC curves for the analysis. Results The results indicate that there was a negative association between HDL2b% and the risk of IR and MetS in both sexes. Subjects in the highest quartile of HDL2b% had a significantly lower prevalence of IR and MetS than those in the lowest quartile (P<0.01). Correlation analysis between HDL2b% and metabolic risk factors showed that HDL2b% had a stronger association with these factors than HDL-C did in both sexes. ROC curve analysis also showed that HDL2b% had significant diagnostic value for IR and MetS compared to other lipid indicators. Conclusion This study showed that MetS alters the distribution of HDL subclasses even when HDL-C levels are within the normal range. HDL-2b% has better diagnostic value for IR and MetS than HDL-C alone and may be a useful marker for early screening.
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Affiliation(s)
- Tong Chen
- Department of Nephrology, South China Hospital of Shenzhen University, Shenzhen, People’s Republic of China
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National Regional Key Technology Engineering Laboratory for Medical Ultrasound School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen, People’s Republic of China
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Shiquan Wu
- Department of Nephrology, South China Hospital of Shenzhen University, Shenzhen, People’s Republic of China
| | - Ling Feng
- Department of Nephrology, Shenzhen Hospital, Southern Medical University, Shenzhen, People’s Republic of China
| | - SiYu Long
- Department of Nephrology, South China Hospital of Shenzhen University, Shenzhen, People’s Republic of China
| | - Yu Liu
- Department of Nephrology, South China Hospital of Shenzhen University, Shenzhen, People’s Republic of China
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National Regional Key Technology Engineering Laboratory for Medical Ultrasound School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen, People’s Republic of China
| | - WenQian Lu
- Department of Medicine, The Chinese University of Hong Kong, Shenzhen, People’s Republic of China
| | - Wenya Chen
- Department of Nephrology, South China Hospital of Shenzhen University, Shenzhen, People’s Republic of China
| | - Guoai Hong
- Department of Nephrology, South China Hospital of Shenzhen University, Shenzhen, People’s Republic of China
| | - Li Zhou
- Department of Nephrology, South China Hospital of Shenzhen University, Shenzhen, People’s Republic of China
| | - Fang Wang
- Department of Nephrology, South China Hospital of Shenzhen University, Shenzhen, People’s Republic of China
| | - Yuechan Luo
- Department of Nephrology, South China Hospital of Shenzhen University, Shenzhen, People’s Republic of China
| | - Hequn Zou
- Department of Nephrology, South China Hospital of Shenzhen University, Shenzhen, People’s Republic of China
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, People’s Republic of China
- Department of Medicine, The Chinese University of Hong Kong, Shenzhen, People’s Republic of China
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22
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Zhezhi D, Zhihui Z, Shifeng Z, Minping L, Xue X, Weiwei Q, Junjie G, Dongxiao Z, Qian M, Yuemin Q, Deng DX, Haiwei H. HDL subfractions determined by microfluidic chip electrophoresis predict the vulnerability of intracranial plaque: A HRMRI study. Clin Chim Acta 2024; 553:117713. [PMID: 38104956 DOI: 10.1016/j.cca.2023.117713] [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: 08/02/2023] [Revised: 12/09/2023] [Accepted: 12/12/2023] [Indexed: 12/19/2023]
Abstract
AIM High-density lipoprotein (HDL) can be divided into several subfractions based on density, size and composition. Accumulative evidence strongly suggests that the subfractions of HDL have very different roles in the pathogenesis of atherosclerosis. The purpose of this study was to further delineate the relationship between HDL subfractions extracted by microfluidic chip electrophoresis and the vulnerability of plaques in patients with intracranial atherosclerosis with a high-resolution magnetic resonance imaging (HRMRI) study. METHODS We prospectively enrolled patients with single atherosclerotic plaque in the middle cerebral artery (MCA) or basilar artery (BA) between July 2020 and Dec 2022 and performed 3-tesla HRMRI on the relevant artery. The HDL cholesterol concentration and HDL subfractions (HDL-2a, HDL-2b and HDL-3) percentage were analyzed in serum samples from the same patients by electrophoresis on a microfluidics system. RESULTS A total of 81 MCA or BA plaques [38 (46.9%) symptomatic and 43 (53.1%) asymptomatic] in 81 patients were identified on HRMRI. Patients with symptomatic plaques had a significantly lower HDL-2b level than asymptomatic plaques [symptomatic vs. asymptomatic: 0.16 (0.10-0.18) vs. 0.27(0.21-0.34), p = 0.001]. After adjusting for demographics and vascular risk factors, logistic regression showed that HDL-2b was inversely associated with asymptomatic plaques (B = -0.04, P = 0.017). According to receiver operating characteristic (ROC) curve model analysis, the cutoff point of HDL-2b in predicting asymptomatic plaques was 0.21 mmol/L (Area under curve: 0.719, specificity: 73.7%, sensitivity: 72.1%). Furthermore, plaque enhancement on HRMRI (P < 0.001), positive remodeling (P < 0.001), plaque load (P < 0.001) and luminal stenosis (P < 0.001) were superior among patients with HDL-2b < 0.21 mmol/L. CONCLUSIONS Our data showed that serum HDL-2b levels may serve as a biomarker for predicting vulnerability in intracranial atherosclerotic plaques.
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Affiliation(s)
- Deng Zhezhi
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, National Key Clinical Department and Key Discipline of Neurology, No.58 Zhongshan Road 2, Guangzhou 510080, China
| | - Zheng Zhihui
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, National Key Clinical Department and Key Discipline of Neurology, No.58 Zhongshan Road 2, Guangzhou 510080, China
| | - Zhang Shifeng
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, National Key Clinical Department and Key Discipline of Neurology, No.58 Zhongshan Road 2, Guangzhou 510080, China
| | - Li Minping
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, National Key Clinical Department and Key Discipline of Neurology, No.58 Zhongshan Road 2, Guangzhou 510080, China
| | - Xu Xue
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, National Key Clinical Department and Key Discipline of Neurology, No.58 Zhongshan Road 2, Guangzhou 510080, China
| | - Qi Weiwei
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, National Key Clinical Department and Key Discipline of Neurology, No.58 Zhongshan Road 2, Guangzhou 510080, China
| | - Guo Junjie
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, National Key Clinical Department and Key Discipline of Neurology, No.58 Zhongshan Road 2, Guangzhou 510080, China
| | - Zhou Dongxiao
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, National Key Clinical Department and Key Discipline of Neurology, No.58 Zhongshan Road 2, Guangzhou 510080, China
| | - Ma Qian
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, National Key Clinical Department and Key Discipline of Neurology, No.58 Zhongshan Road 2, Guangzhou 510080, China
| | - Qiu Yuemin
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, National Key Clinical Department and Key Discipline of Neurology, No.58 Zhongshan Road 2, Guangzhou 510080, China
| | | | - Huang Haiwei
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, National Key Clinical Department and Key Discipline of Neurology, No.58 Zhongshan Road 2, Guangzhou 510080, China.
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Chary A, Tohidi M, Hasheminia M, Golmohammadi M, Haji Hosseini R, Hedayati M, Azizi F, Hadaegh F. Association Between HDL2-C and HDL3-C with Cardiovascular Disease: A Nested Case-Control Study in an Iranian Population. Int J Endocrinol Metab 2024; 22:e141550. [PMID: 38665147 PMCID: PMC11041996 DOI: 10.5812/ijem-141550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/18/2023] [Accepted: 11/28/2023] [Indexed: 04/28/2024] Open
Abstract
Background The contribution of high-density lipoprotein cholesterol (HDL-C) subclasses to incident cardiovascular disease (CVD) and coronary heart disease (CHD) remains a subject of debate. Objectives The objective of this study was to investigate these associations in a population with a high prevalence of dyslipidemia and CVD. Methods In a nested case-control study, HDL-C and its subclasses (HDL2-C and HDL3-C) in 370 age and gender-matched case and control subjects were determined. This study employed multivariable-adjusted conditional logistic regression to calculate the odds ratios (ORs) for the associations between HDL-C, HDL2-C, HDL3-C, and HDL2-C/HDL3-C (both as continuous and categorical variables) with incident CVD and CHD. The present study models were adjusted for a comprehensive set of confounders, including body mass index, current smoking, hypertension, type 2 diabetes mellitus, use of lipid-lowering drugs, family history of premature CVD, non-HDL-C, and triglycerides. Results In multivariate analysis, when considering lipoprotein parameters as continuous variables, a 1-unit increase in HDL-C and HDL3-C was associated with a reduced risk of incident CVD and CHD. For CVD, the ORs (95% confidence intervals [CI]) were 0.95 (0.92 - 0.98) and 0.95 (0.93 - 0.98) for HDL-C and HDL3-C, respectively. The corresponding values for CHD were 0.94 (0.91 - 0.97) and 0.94 (0.91 - 0.97). In the categorical approach to lipoprotein parameters, higher quartiles of HDL-C and HDL3-C, compared to the first quartile, were significantly associated with a lower risk of incident CVD and CHD. The ORs (95% CI) for the fourth quartiles were 0.43 (0.25 - 0.74, P for trend = 0.003) and 0.46 (0.27 - 0.78, P for trend = 0.005) for HDL-C and HDL3-C regarding CVD and 0.32 (0.17 - 0.59) and 0.32 (0.18 - 0.59) (all P for trend = 0.001) regarding CHD, respectively. Paradoxically, across quartiles of HDL2-C/HDL3-C, this lipid ratio was associated with a higher risk of CHD (92% higher risk in the fourth quartile). Conclusions The results showed that HDL3-C, but not HDL2-C, was primarily responsible for the protective effect of HDL-C against CVD, particularly CHD, in Iranian adults.
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Affiliation(s)
- Abdolreza Chary
- Department of Biology, Payame Noor University, Tehran, Iran
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Tohidi
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mitra Hasheminia
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Melika Golmohammadi
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Mehdi Hedayati
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fereidoun Azizi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farzad Hadaegh
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Andraski AB, Sacks FM, Aikawa M, Singh SA. Understanding HDL Metabolism and Biology Through In Vivo Tracer Kinetics. Arterioscler Thromb Vasc Biol 2024; 44:76-88. [PMID: 38031838 PMCID: PMC10842918 DOI: 10.1161/atvbaha.123.319742] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 11/07/2023] [Indexed: 12/01/2023]
Abstract
HDL (high-density lipoprotein), owing to its high protein content and small size, is the densest circulating lipoprotein. In contrast to lipid-laden VLDL (very-low-density lipoprotein) and LDL (low-density lipoprotein) that promote atherosclerosis, HDL is hypothesized to mitigate atherosclerosis via reverse cholesterol transport, a process that entails the uptake and clearance of excess cholesterol from peripheral tissues. This process is mediated by APOA1 (apolipoprotein A-I), the primary structural protein of HDL, as well as by the activities of additional HDL proteins. Tracer-dependent kinetic studies are an invaluable tool to study HDL-mediated reverse cholesterol transport and overall HDL metabolism in humans when a cardiovascular disease therapy is investigated. Unfortunately, HDL cholesterol-raising therapies have not been successful at reducing cardiovascular events suggesting an incomplete picture of HDL biology. However, as HDL tracer studies have evolved from radioactive isotope- to stable isotope-based strategies that in turn are reliant on mass spectrometry technologies, the complexity of the HDL proteome and its metabolism can be more readily addressed. In this review, we outline the motivations, timelines, advantages, and disadvantages of the various tracer kinetics strategies. We also feature the metabolic properties of select HDL proteins known to regulate reverse cholesterol transport, which in turn underscore that HDL lipoproteins comprise a heterogeneous particle population whose distinct protein constituents and kinetics likely determine its function and potential contribution to cholesterol clearance.
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Affiliation(s)
- Allison B. Andraski
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Frank M. Sacks
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Masanori Aikawa
- Center for Interdisciplinary Cardiovascular Sciences, Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Sasha A. Singh
- Center for Interdisciplinary Cardiovascular Sciences, Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
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Masson W, Barbagelata L, Lobo M, Corral P, Nogueira JP, Lucas L. Dyslipidemia in adults with congenital heart disease: A systematic review and meta-analysis. Nutr Metab Cardiovasc Dis 2024; 34:19-32. [PMID: 37949709 DOI: 10.1016/j.numecd.2023.09.010] [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: 06/20/2023] [Revised: 08/18/2023] [Accepted: 09/12/2023] [Indexed: 11/12/2023]
Abstract
AIMS Several particular characteristics of patients with congenital heart disease could affect lipid levels. The objectives of this study were: a) to analyze the prevalence of dyslipidemia in congenital heart disease patients; 2) to compare lipid levels between congenital heart disease patients and a control group. DATA SYNTHESIS This systematic review and meta-analysis was performed according to PRISMA guidelines (PROSPERO CRD42023432041). A literature search was performed to detect studies that have reported lipid levels or the prevalence of dyslipidemia in congenital heart disease patients. We performed a qualitative analysis (studies that reported dyslipidemia prevalence) and quantitative analysis (studies that compared lipid values between congenital heart disease patients and controls). In total, 29 observational studies involving 22,914 patients with congenital heart disease and 641,086 controls were eligible for this review. The reported presence of "hyperlipidemia" or "dyslipidemia" ranged from 14.3% to 69.9%. When studies analyzed lipid variables dichotomously between congenital heart disease patients and controls, the results were conflicting. The quantitative analysis showed that patients with congenital heart disease have lower levels of total cholesterol (MD: -18.9 [95% CI: -22.2 to -15.7]; I2 = 93%), LDL-C (MD: -10.7 [95% CI: -13.1 to -8.3]; I2 = 90%) and HDL-C (MD: -6.3 [95% CI: -7.7 to -4.9]; I2 = 95%) compared to controls. CONCLUSIONS The qualitative analysis showed some concerns, but the quantitative analysis indicates that congenital heart disease patients showed lower levels of total cholesterol, LDL-C, and HDL-C compared to controls. New research should be developed to clarify this relevant topic.
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Affiliation(s)
- Walter Masson
- Cardiology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
| | - Leandro Barbagelata
- Cardiology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Martín Lobo
- Cardiology Department, Hospital Militar Campo de Mayo, Buenos Aires, Argentina
| | - Pablo Corral
- Facultad de Medicina, Universidad FASTA. Mar del Plata, Argentina
| | - Juan P Nogueira
- Universidad Internacional de las Américas, San José, Costa Rica; Centro de Investigación en Endocrinología, Nutrición y Metabolismo (CIENM), Facultad de Ciencias de la Salud, Universidad Nacional de Formosa, Argentina
| | - Luciano Lucas
- Cardiology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
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Costacou T, Vaisar T, Miller RG, Davidson WS, Heinecke JW, Orchard TJ, Bornfeldt KE. HDL Particle Concentration and Size Predict Incident Coronary Artery Disease Events in People with Type 1 Diabetes. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.11.06.23298165. [PMID: 37986833 PMCID: PMC10659494 DOI: 10.1101/2023.11.06.23298165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Background Cholesterol efflux capacity (CEC) negatively correlates with cardiovascular disease risk. Small HDL particles account almost quantitively for CEC, perhaps mediated through efflux of outer leaflet plasma membrane phospholipids by ABCA1. People with type 1 diabetes (T1D) are at increased risk of coronary artery disease (CAD) despite normal levels of HDL-cholesterol (HDL-C). We therefore tested the hypotheses that small HDL particles (HDL-P)-rather than HDL-C levels-predict incident CAD in T1D. Methods Incident CAD (CAD death, myocardial infarction, and/or coronary revascularization) was determined in a cohort of 550 participants with childhood-onset T1D. HDL-P was quantified by calibrated ion mobility analysis. CEC and phospholipid efflux were quantified with validated assays. Results During a median follow-up of 26 years, 36.5% of the participants developed incident CAD. In multivariable Cox models, levels of HDL-C and apolipoprotein A-I (APOA1) did not predict CAD risk. In contrast, extra-small HDL particle levels strongly and negatively predicted risk (hazard ratio [HR]=0.25, 95% confidence interval [CI]=0.13-0.49). An increased concentration of total HDL particles (T-HDL-P) (HR=0.87, CI=0.82-0.92) and three other HDL sizes were weaker predictors of risk: small HDL (HR=0.80, 0.65-0.98), medium HDL (HR=0.78, CI=0.70-0.87) and large HDL (HR=0.72, CI=0.59-0.89). Although CEC negatively associated with incident CAD, that association disappeared after the model was adjusted for T-HDL-P. Isolated small HDLs strongly promoted ABCA1-dependent efflux of membrane outer leaflet phospholipids. Conclusions Low concentrations of T-HDL-P and all four sizes of HDL subpopulations predicted incident CAD independently of HDL-C, APOA1, and other common CVD risk factors. Extra-small HDL was a much stronger predictor of risk than the other HDLs. Our data are consistent with the proposal that small HDLs play a critical role in cardioprotection in T1D, which might be mediated by macrophage plasma membrane outer leaflet phospholipid export and cholesterol efflux by the ABCA1 pathway.
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Affiliation(s)
- Tina Costacou
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA 15261
| | - Tomas Vaisar
- Department of Medicine, University of Washington, Seattle, WA 98109
| | - Rachel G. Miller
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA 15261
| | - W. Sean Davidson
- Department of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, 45237
| | - Jay W. Heinecke
- Department of Medicine, University of Washington, Seattle, WA 98109
| | - Trevor J. Orchard
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA 15261
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He Y, Pavanello C, Hutchins PM, Tang C, Pourmousa M, Vaisar T, Song HD, Pastor RW, Remaley AT, Goldberg IJ, Costacou T, Davidson WS, Bornfeldt KE, Calabresi L, Segrest JP, Heinecke JW. Flipped C-Terminal Ends of APOA1 Promote ABCA1-dependent Cholesterol Efflux by Small HDLs. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.11.03.23297986. [PMID: 37961344 PMCID: PMC10635269 DOI: 10.1101/2023.11.03.23297986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Background Cholesterol efflux capacity (CEC) predicts cardiovascular disease (CVD) independently of HDL cholesterol (HDL-C) levels. Isolated small HDL particles are potent promoters of macrophage CEC by the ABCA1 pathway, but the underlying mechanisms are unclear. Methods We used model system studies of reconstituted HDL and plasma from control and lecithin-cholesterol acyltransferase (LCAT)-deficient subjects to investigate the relationships among the sizes of HDL particles, the structure of APOA1 in the different particles, and the CECs of plasma and isolated HDLs. Results We quantified macrophage and ABCA1 CEC of four distinct sizes of reconstituted HDL (r-HDL). CEC increased as particle size decreased. MS/MS analysis of chemically crosslinked peptides and molecular dynamics simulations of APOA1 (HDL's major protein) indicated that the mobility of that protein's C-terminus was markedly higher and flipped off the surface in the smallest particles. To explore the physiological relevance of the model system studies, we isolated HDL from LCAT-deficient subjects, whose small HDLs-like r-HDLs-are discoidal and composed of APOA1, cholesterol, and phospholipid. Despite their very low plasma levels of HDL particles, these subjects had normal CEC. In both the LCAT-deficient subjects and control subjects, the CEC of isolated extra-small HDL (a mixture of extra-small and small HDL by calibrated ion mobility analysis) was 3-5-fold greater than that of the larger sizes of isolated HDL. Incubating LCAT-deficient plasma and control plasma with human LCAT converted extra-small and small HDL particles into larger particles, and it markedly inhibited CEC. Conclusions We present a mechanism for the enhanced CEC of small HDLs. In smaller particles, the C-termini of the two antiparallel molecules of APOA1 are flipped off the lipid surface of HDL. This extended conformation allows them to engage with ABCA1. In contrast, the C-termini of larger HDLs are unable to interact productively with ABCA1 because they form a helical bundle that strongly adheres to the lipid on the particle. Enhanced CEC, as seen with the smaller particles, predicts decreased CVD risk. Thus, extra-small and small HDLs may be key mediators and indicators of HDL's cardioprotective effects.
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Affiliation(s)
- Yi He
- Department of Medicine, University of Washington, Seattle, WA, 98109, USA
| | - Chiara Pavanello
- Centro Grossi Paoletti, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milano, Italy
| | - Patrick M Hutchins
- Department of Medicine, University of Washington, Seattle, WA, 98109, USA
| | - Chongren Tang
- Department of Medicine, University of Washington, Seattle, WA, 98109, USA
| | - Mohsen Pourmousa
- Laboratory of Computational Biology, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892
| | - Tomas Vaisar
- Department of Medicine, University of Washington, Seattle, WA, 98109, USA
| | - Hyun D Song
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, 37240, USA
| | - Richard W Pastor
- Laboratory of Computational Biology, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892
| | - Alan T Remaley
- Department of Laboratory Medicine, National Institutes of Health, Bethesda, MD 20892
| | - Ira J Goldberg
- Department of Medicine, New York University, New York, NY, 10016, USA
| | - Tina Costacou
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - W Sean Davidson
- Department of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, 45237, USA
| | - Karin E Bornfeldt
- Department of Medicine, University of Washington, Seattle, WA, 98109, USA
| | - Laura Calabresi
- Centro Grossi Paoletti, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milano, Italy
| | - Jere P Segrest
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, 37240, USA
| | - Jay W Heinecke
- Department of Medicine, University of Washington, Seattle, WA, 98109, USA
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Hiles M, Simmons A, Hilleman D, Gibson CA, Backes JM. Atherosclerotic Cardiovascular Disease in Women: Providing Protection With Lipid-altering Agents. Clin Ther 2023; 45:1127-1136. [PMID: 37770308 DOI: 10.1016/j.clinthera.2023.08.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 06/07/2023] [Accepted: 08/29/2023] [Indexed: 09/30/2023]
Abstract
PURPOSE Atherosclerotic cardiovascular disease (ASCVD) is the leading cause of death in women, yet it remains underdiagnosed, undertreated, and understudied in women compared with men. Although estrogen has provided observational evidence of cardioprotection, randomized controlled trials using hormone replacement therapy have generally produced unfavorable results. METHODS For this narrative review, a literature search was performed using the key words cardiovascular disease, women, and dyslipidemia in PubMed and Google Scholar with no date limitations. References within each article were also reviewed for additional relevant articles. FINDINGS Sex-specific risk factors and underrecognized conditions more predominant in women elevate ASCVD risk, creating further clinical challenges, such as the need for accurate risk stratification, compared with in men. Dyslipidemia frequently manifests or worsens during the menopausal transition. Therefore, identification during midlife and implementing lipid-lowering strategies to reduce ASCVD risk is imperative. Women have historically been poorly represented in cardiovascular (CV) outcome trials. However, more recent studies and meta-analyses have indicated that lipid-lowering therapies are equally effective in women and produce similar reductions in CV events and total mortality. Major cholesterol guidelines address many of the challenges that clinicians face when assessing ASCVD risk in women. Key points specific to women include obtaining a detailed history of pregnancy-related conditions, identification of common autoimmune disorders associated with systemic inflammation, and use of 10-year ASCVD risk calculators and imaging modalities (coronary artery calcium) to optimize ASCVD assessment. In terms of treatment, similar to men, women with existing ASCVD or high-risk primary prevention patients should be treated aggressively to achieve ≥50% LDL-C reductions and/or LDL-C goals as low as <55 mg/dL. Appropriate lipid-lowering therapies include high-intensity statins with or without ezetimibe and proprotein convertase subtilisin kexin/type 9 inhibitors. Women with lower ASCVD risk may be considered for low- to moderate-intensity statin therapy (approximately 30%-50% LDL-C reduction). All women, regardless of ASCVD risk category, should implement therapeutic lifestyle changes, which improve many common age-related cardiometabolic conditions. IMPLICATIONS Although ASCVD and current risk factor trends in women are concerning, numerous evidence-based approaches are available to protect women with ASCVD risk from life-changing CV events.
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Affiliation(s)
- Megan Hiles
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Ashley Simmons
- Department of Cardiovascular Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Daniel Hilleman
- Creighton University School of Pharmacy and Health Professions, Omaha, Nebraska
| | - Cheryl A Gibson
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - James M Backes
- Departments of Pharmacy Practice and Medicine, Atherosclerosis and LDL-Apheresis Center, University of Kansas Medical Center, Kansas City, Kansas.
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Hong BV, Agus JK, Tang X, Zheng JJ, Romo EZ, Lei S, Zivkovic AM. Precision Nutrition and Cardiovascular Disease Risk Reduction: the Promise of High-Density Lipoproteins. Curr Atheroscler Rep 2023; 25:663-677. [PMID: 37702886 PMCID: PMC10564829 DOI: 10.1007/s11883-023-01148-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2023] [Indexed: 09/14/2023]
Abstract
PURPOSE OF REVIEW Emerging evidence supports the promise of precision nutritional approaches for cardiovascular disease (CVD) prevention. Here, we discuss current findings from precision nutrition trials and studies reporting substantial inter-individual variability in responses to diets and dietary components relevant to CVD outcomes. We highlight examples where early precision nutrition research already points to actionable intervention targets tailored to an individual's biology and lifestyle. Finally, we make the case for high-density lipoproteins (HDL) as a compelling next generation target for precision nutrition aimed at CVD prevention. HDL possesses complex structural features including diverse protein components, lipids, size distribution, extensive glycosylation, and interacts with the gut microbiome, all of which influence HDL's anti-inflammatory, antioxidant, and cholesterol efflux properties. Elucidating the nuances of HDL structure and function at an individual level may unlock personalized dietary and lifestyle strategies to optimize HDL-mediated atheroprotection and reduce CVD risk. RECENT FINDINGS Recent human studies have demonstrated that HDL particles are key players in the reduction of CVD risk. Our review highlights the role of HDL and the importance of personalized therapeutic approaches to improve their potential for reducing CVD risk. Factors such as diet, genetics, glycosylation, and gut microbiome interactions can modulate HDL structure and function at the individual level. We emphasize that fractionating HDL into size-based subclasses and measuring particle concentration are necessary to understand HDL biology and for developing the next generation of diagnostics and biomarkers. These discoveries underscore the need to move beyond a one-size-fits-all approach to HDL management. Precision nutrition strategies that account for personalized metabolic, genetic, and lifestyle data hold promise for optimizing HDL therapies and function to mitigate CVD risk more potently. While human studies show HDL play a key role in reducing CVD risk, recent findings indicate that factors such as diet, genetics, glycosylation, and gut microbes modulate HDL function at the individual level, underscoring the need for precision nutrition strategies that account for personalized variability to optimize HDL's potential for mitigating CVD risk.
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Affiliation(s)
- Brian V Hong
- Department of Nutrition, University of California, Davis, Davis, CA, 95616, USA
| | - Joanne K Agus
- Department of Nutrition, University of California, Davis, Davis, CA, 95616, USA
| | - Xinyu Tang
- Department of Nutrition, University of California, Davis, Davis, CA, 95616, USA
| | - Jack Jingyuan Zheng
- Department of Nutrition, University of California, Davis, Davis, CA, 95616, USA
| | - Eduardo Z Romo
- Department of Nutrition, University of California, Davis, Davis, CA, 95616, USA
| | - Susan Lei
- Department of Nutrition, University of California, Davis, Davis, CA, 95616, USA
| | - Angela M Zivkovic
- Department of Nutrition, University of California, Davis, Davis, CA, 95616, USA.
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30
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Sato M, Neufeld EB, Playford MP, Lei Y, Sorokin AV, Aponte AM, Freeman LA, Gordon SM, Dey AK, Jeiran K, Hamasaki M, Sampson ML, Shamburek RD, Tang J, Chen MY, Kotani K, Anderson JL, Dullaart RP, Mehta NN, Tietge UJ, Remaley AT. Cell-free, high-density lipoprotein-specific phospholipid efflux assay predicts incident cardiovascular disease. J Clin Invest 2023; 133:e165370. [PMID: 37471145 PMCID: PMC10503808 DOI: 10.1172/jci165370] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 07/18/2023] [Indexed: 07/22/2023] Open
Abstract
BACKGROUNDCellular cholesterol efflux capacity (CEC) is a better predictor of cardiovascular disease (CVD) events than HDL-cholesterol (HDL-C) but is not suitable as a routine clinical assay.METHODSWe developed an HDL-specific phospholipid efflux (HDL-SPE) assay to assess HDL functionality based on whole plasma HDL apolipoprotein-mediated solubilization of fluorescent phosphatidylethanolamine from artificial lipid donor particles. We first assessed the association of HDL-SPE with prevalent coronary artery disease (CAD): study I included NIH severe-CAD (n = 50) and non-CAD (n = 50) participants, who were frequency matched for sex, BMI, type 2 diabetes mellitus, and smoking; study II included Japanese CAD (n = 70) and non-CAD (n = 154) participants. We also examined the association of HDL-SPE with incident CVD events in the Prevention of Renal and Vascular End-stage Disease (PREVEND) study comparing 340 patients with 340 controls individually matched for age, sex, smoking, and HDL-C levels.RESULTSReceiver operating characteristic curves revealed stronger associations of HDL-SPE with prevalent CAD. The AUCs in study I were as follows: HDL-SPE, 0.68; apolipoprotein A-I (apoA-I), 0.62; HDL-C, 0.63; and CEC, 0.52. The AUCs in study II were as follows: HDL-SPE, 0.83; apoA-I, 0.64; and HDL-C, 0.53. Also longitudinally, HDL-SPE was significantly associated with incident CVD events independent of traditional risk factors with ORs below 0.2 per SD increment in the PREVEND study (P < 0.001).CONCLUSIONHDL-SPE could serve as a routine clinical assay for improving CVD risk assessment and drug discovery.TRIAL REGISTRATIONClinicalTrials.gov NCT01621594.FUNDINGNHLBI Intramural Research Program, NIH (HL006095-06).
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Affiliation(s)
- Masaki Sato
- Lipoprotein Metabolism Laboratory, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, Maryland, USA
- Division of Community and Family Medicine and Department of Clinical Laboratory Medicine, Jichi Medical University, Shimotsuke-City, Tochigi, Japan
- Biochemical Research Laboratory II, Eiken Chemical Co., Ltd., Shimotsuga-gun, Tochigi, Japan
| | - Edward B. Neufeld
- Lipoprotein Metabolism Laboratory, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, Maryland, USA
| | - Martin P. Playford
- Section of Inflammation and Cardiometabolic Diseases, NHLBI, NIH, Bethesda, Maryland, USA
| | - Yu Lei
- Division of Clinical Chemistry, Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
| | - Alexander V. Sorokin
- Lipoprotein Metabolism Laboratory, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, Maryland, USA
- Section of Inflammation and Cardiometabolic Diseases, NHLBI, NIH, Bethesda, Maryland, USA
| | - Angel M. Aponte
- Proteomics Core Facility, NHLBI, NIH, Bethesda, Maryland, USA
| | - Lita A. Freeman
- Lipoprotein Metabolism Laboratory, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, Maryland, USA
| | - Scott M. Gordon
- Saha Cardiovascular Research Center and Department of Physiology, University of Kentucky, Lexington, Kentucky, USA
| | - Amit K. Dey
- Section of Inflammation and Cardiometabolic Diseases, NHLBI, NIH, Bethesda, Maryland, USA
| | - Kianoush Jeiran
- Lipoprotein Metabolism Laboratory, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, Maryland, USA
| | - Masato Hamasaki
- Division of Community and Family Medicine and Department of Clinical Laboratory Medicine, Jichi Medical University, Shimotsuke-City, Tochigi, Japan
- Biochemical Research Laboratory II, Eiken Chemical Co., Ltd., Shimotsuga-gun, Tochigi, Japan
| | | | - Robert D. Shamburek
- Lipoprotein Metabolism Laboratory, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, Maryland, USA
| | - Jingrong Tang
- Lipoprotein Metabolism Laboratory, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, Maryland, USA
| | - Marcus Y. Chen
- Laboratory of Cardiovascular CT, NHLBI, NIH, Bethesda, Maryland, USA
| | - Kazuhiko Kotani
- Division of Community and Family Medicine and Department of Clinical Laboratory Medicine, Jichi Medical University, Shimotsuke-City, Tochigi, Japan
| | - Josephine L.C. Anderson
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Robin P.F. Dullaart
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Nehal N. Mehta
- Section of Inflammation and Cardiometabolic Diseases, NHLBI, NIH, Bethesda, Maryland, USA
| | - Uwe J.F. Tietge
- Division of Clinical Chemistry, Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
- Clinical Chemistry, Karolinska University Laboratory, Karolinska University Hospital, Stockholm, Sweden
| | - Alan T. Remaley
- Lipoprotein Metabolism Laboratory, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, Maryland, USA
- The NIH Clinical Center and
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Piko P, Jenei T, Kosa Z, Sandor J, Kovacs N, Seres I, Paragh G, Adany R. Association of HDL Subfraction Profile with the Progression of Insulin Resistance. Int J Mol Sci 2023; 24:13563. [PMID: 37686368 PMCID: PMC10488248 DOI: 10.3390/ijms241713563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 08/24/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a major global public health problem, as it is associated with increased morbidity, mortality, and healthcare costs. Insulin resistance (IR) is a condition characterized by disturbances in carbohydrate and lipid metabolism that precedes T2DM. The aim of the present study was to investigate the association between HDL and its subfraction profile and the progression of IR, as assessed by the Homeostatic Model Assessment for IR (HOMA-IR) index, and to define cut-off values to identify an increased risk of IR. Individuals with a HOMA-IR greater than 3.63 were considered to have IR. The HDL subfractions were separated using the Lipoprint system, which identifies ten subfractions (HDL-1-10) in three subclasses as large (HDL-L), intermediate (HDL-I) and small (HDL-S). Analyses were performed on samples from 240 individuals without IR and 137 with IR from the Hungarian general and Roma populations. The HDL-1 to -6 subfractions and the HDL-L and -I classes showed a significant negative association with the progression and existence of IR. Among them, HDL-2 (B = -40.37, p = 2.08 × 10-11) and HDL-L (B = -14.85, p = 9.52 × 10-10) showed the strongest correlation. The optimal threshold was found to be 0.264 mmol/L for HDL-L and 0.102 mmol/L and above for HDL-2. Individuals with HDL-L levels below the reference value had a 5.1-fold higher risk of IR (p = 2.2 × 10-7), while those with HDL-2 levels had a 4.2-fold higher risk (p = 3.0 × 10-6). This study demonstrates that the HDL subfraction profile (especially the decrease in HDL-2 and -L) may be a useful marker for the early detection and intervention of atherogenic dyslipidemia in subjects with impaired glucose and insulin metabolism.
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Affiliation(s)
- Peter Piko
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (P.P.); (T.J.); (J.S.); (N.K.)
- National Laboratory for Health Security, Center for Epidemiology and Surveillance, Semmelweis University, 1089 Budapest, Hungary
| | - Tibor Jenei
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (P.P.); (T.J.); (J.S.); (N.K.)
| | - Zsigmond Kosa
- Department of Health Methodology and Public Health, Faculty of Health, University of Debrecen, 4400 Nyíregyháza, Hungary;
| | - Janos Sandor
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (P.P.); (T.J.); (J.S.); (N.K.)
- ELKH-DE Public Health Research Group, Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4028 Debrecen, Hungary
| | - Nora Kovacs
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (P.P.); (T.J.); (J.S.); (N.K.)
- ELKH-DE Public Health Research Group, Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4028 Debrecen, Hungary
| | - Ildiko Seres
- Institute of Internal Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (I.S.); (G.P.)
| | - Gyorgy Paragh
- Institute of Internal Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (I.S.); (G.P.)
| | - Roza Adany
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (P.P.); (T.J.); (J.S.); (N.K.)
- National Laboratory for Health Security, Center for Epidemiology and Surveillance, Semmelweis University, 1089 Budapest, Hungary
- ELKH-DE Public Health Research Group, Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, 4028 Debrecen, Hungary
- Department of Public Health, Semmelweis University, 1089 Budapest, Hungary
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32
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Qian C, Nusinovici S, Thakur S, Soh ZD, Majithia S, Chee ML, Zhong H, Tham YC, Sabanayagam C, Hysi PG, Cheng CY. Machine learning identifying peripheral circulating metabolites associated with intraocular pressure alterations. Br J Ophthalmol 2023; 107:1275-1280. [PMID: 35613841 DOI: 10.1136/bjophthalmol-2021-320584] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 05/13/2022] [Indexed: 11/04/2022]
Abstract
AIMS To identify blood metabolite markers associated with intraocular pressure (IOP) in a population-based cross-sectional study. METHODS This study was conducted in a multiethnic Asian population (Chinese, n=2805; Indians, n=3045; Malays, n=3041 aged 40-80 years) in Singapore. All subjects underwent standardised systemic and ocular examinations, and biosamples were collected. Selected metabolites (n=228) in either serum or plasma were analysed and quantified using nuclear magnetic resonance spectroscopy. Least absolute shrinkage and selection operator regression was used for metabolites selection. Multivariable linear regression was used to evaluate the relationship between metabolites and IOP in each of the three ethnic groups, followed by a meta-analysis combining the three cohorts. RESULTS Six metabolites, including albumin, glucose, lactate, glutamine, ratio of saturated fatty acids to total fatty acids (SFAFA) and cholesterol esters in very large high-density lipoprotein (HDL), were significantly associated with IOP in all three cohorts. Higher levels of albumin (per SD, beta=0.24, p=0.002), lactate (per SD, beta=0.27, p=0.008), glucose (per SD, beta=0.11, p=0.010) and cholesterol esters in very large HDL (per SD, beta=0.47, p=0.006), along with lower levels of glutamine (per SD, beta=0.17, p<0.001) and SFAFA (per SD, beta=0.21, p=0.008) were associated with higher IOP levels. CONCLUSION We identify several novel blood metabolites associated with IOP. These findings may provide insight into the physiological and pathological processes underlying IOP control.
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Affiliation(s)
- Chaoxu Qian
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Department of Ophthalmology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Simon Nusinovici
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Programme, Duke-NUS Medical School, Singapore
| | - Sahil Thakur
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Zhi Da Soh
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Shivani Majithia
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Miao Li Chee
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Hua Zhong
- Department of Ophthalmology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yih-Chung Tham
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Programme, Duke-NUS Medical School, Singapore
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Charumathi Sabanayagam
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Programme, Duke-NUS Medical School, Singapore
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Pirro G Hysi
- Twin Research and Genetic Epidemiology, King's College London, London, UK
| | - Ching-Yu Cheng
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Programme, Duke-NUS Medical School, Singapore
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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Malick WA, Schaefer EJ, Hegele RA, Rosenson RS. ABCA1 Deficiency: A Rare Cause of Premature Coronary Artery Disease. JACC Case Rep 2023; 18:101904. [PMID: 37545679 PMCID: PMC10401051 DOI: 10.1016/j.jaccas.2023.101904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/08/2023] [Accepted: 05/12/2023] [Indexed: 08/08/2023]
Abstract
ATP-binding cassette transporter A1 (ABCA1) deficiency results in very low high-density lipoprotein cholesterol levels. Complete ABCA1 deficiency, or Tangier disease, is characterized by premature atherosclerotic cardiovascular disease, yellow-orange tonsils, hepatosplenomegaly, peripheral neuropathy, and corneal opacification. Early recognition of this condition can lead to regular monitoring for atherosclerotic cardiovascular symptoms and treatment of major modifiable risk factors. (Level of Difficulty: Beginner.).
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Affiliation(s)
- Waqas A. Malick
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Ernst J. Schaefer
- Boston Heart Diagnostics, Framingham, Massachusetts, USA
- Department of Medicine, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Robert A. Hegele
- Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Robert S. Rosenson
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Tan M, Zhang Y, Jin L, Wang Y, Cui W, Nasifu L, He B. Association between atherogenic index of plasma and prehypertension or hypertension among normoglycemia subjects in a Japan population: a cross-sectional study. Lipids Health Dis 2023; 22:87. [PMID: 37386459 DOI: 10.1186/s12944-023-01853-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 06/19/2023] [Indexed: 07/01/2023] Open
Abstract
OBJECTIVE The atherogenic index of plasma (AIP), consisting of triglycerides and high-density lipoprotein cholesterol, is applied to estimate the cardiovascular disease risk. The evidence regarding the association between AIP and prehypertension or hypertension remains inconclusive. This study was conducted to investigate the association of AIP and prehypertension or hypertension in normoglycemic subjects in Japan. METHODS In the present cross-sectional study, 15,453 normoglycemic participants aged 18 years or older in Gifu, Japan, were evaluated. The selected participants were separated into four groups in the light of AIP quartiles, ranging from the lowest quartile (Q1) to the highest quartile (Q4). And the association between AIP and prehypertension or hypertension was explored with multivariate logistic regression by gradually adjusting model. RESULTS Among the 15,453 participants, aged of 43.7 ± 8.9 years, and of whom 45.5% were females, the prevalence rates of prehypertension or hypertension were 27.68% (4,278) and 6.23% (962) respectively. In multivariate logistic regression analyses, participants in the highest AIP quartile had an increase risk in prehypertension and hypertension, compared with participants the lowest one, the odds ratios (OR) were 1.15 (95%CI: 1.00-1.13, P = 0.045) for prehypertension and 1.54 (95%CI:1.16-2.04, P = 0.003) for hypertension after adjusting confounders. In subgroup analyses, the high risk of hypertension was also observed for female participants in the highest AIP quartile (Q4) (OR = 2.19, 95%CI: 1.37-3.49, P = 0.001), especially between the ages of 40 and 60 years (OR = 2.20, 95%CI: 1.24-3.88, P = 0.007). CONCLUSIONS Higher AIP is significantly and positively associated with the risk of prehypertension or hypertension in normoglycemic subjects in Gifu, Japan, which was more pronounced in the female population, especially between the years of 40 and 60.
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Affiliation(s)
- Mingjuan Tan
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
| | - Yongliang Zhang
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
| | - Ling Jin
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
| | - Youli Wang
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
| | - Weiwei Cui
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
| | - Lubanga Nasifu
- Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
- Department of Biology, Muni University, Arua, Uganda
| | - Bangshun He
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China.
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35
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Shao B, Afshinnia F, Mathew AV, Ronsein GE, Thornock C, Irwin AD, Kansal M, Rao PS, Dobre M, Al-Kindi S, Weir MR, Go A, He J, Chen J, Feldman H, Bornfeldt KE, Pennathur S. Low concentrations of medium-sized HDL particles predict incident CVD in chronic kidney disease patients. J Lipid Res 2023; 64:100381. [PMID: 37100172 PMCID: PMC10323925 DOI: 10.1016/j.jlr.2023.100381] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 04/28/2023] Open
Abstract
Patients with chronic kidney disease (CKD) are at high risk for CVD. However, traditional CVD risk factors cannot completely explain the increased risk. Altered HDL proteome is linked with incident CVD in CKD patients, but it is unclear whether other HDL metrics are associated with incident CVD in this population. In the current study, we analyzed samples from two independent prospective case-control cohorts of CKD patients, the Clinical Phenotyping and Resource Biobank Core (CPROBE) and the Chronic Renal Insufficiency Cohort (CRIC). We measured HDL particle sizes and concentrations (HDL-P) by calibrated ion mobility analysis and HDL cholesterol efflux capacity (CEC) by cAMP-stimulated J774 macrophages in 92 subjects from the CPROBE cohort (46 CVD and 46 controls) and in 91 subjects from the CRIC cohort (34 CVD and 57 controls). We tested associations of HDL metrics with incident CVD using logistic regression analysis. No significant associations were found for HDL-C or HDL-CEC in either cohort. Total HDL-P was only negatively associated with incident CVD in the CRIC cohort in unadjusted analysis. Among the six sized HDL subspecies, only medium-sized HDL-P was significantly and negatively associated with incident CVD in both cohorts after adjusting for clinical confounders and lipid risk factors with odds ratios (per 1-SD) of 0.45 (0.22-0.93, P = 0.032) and 0.42 (0.20-0.87, P = 0.019) for CPROBE and CRIC cohorts, respectively. Our observations indicate that medium-sized HDL-P-but not other-sized HDL-P or total HDL-P, HDL-C, or HDL-CEC-may be a prognostic cardiovascular risk marker in CKD.
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Affiliation(s)
- Baohai Shao
- Department of Medicine, UW Medicine Diabetes Institute, University of Washington, Seattle, WA, USA.
| | - Farsad Afshinnia
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Anna V Mathew
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Graziella E Ronsein
- Department of Medicine, UW Medicine Diabetes Institute, University of Washington, Seattle, WA, USA
| | - Carissa Thornock
- Department of Medicine, UW Medicine Diabetes Institute, University of Washington, Seattle, WA, USA
| | - Angela D Irwin
- Department of Medicine, UW Medicine Diabetes Institute, University of Washington, Seattle, WA, USA
| | - Mayank Kansal
- Department of Cardiology, University of Illinois at Chicago, Chicago, IL, USA
| | - Panduranga S Rao
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Mirela Dobre
- Division of Nephrology and Hypertension, Case Western Reserve University, Cleveland, OH, USA
| | - Sadeer Al-Kindi
- Division of Nephrology and Hypertension, Case Western Reserve University, Cleveland, OH, USA
| | - Matthew R Weir
- Division of Nephrology, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Alan Go
- Department of Health System Science, Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, CA, USA
| | - Jiang He
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA
| | - Jing Chen
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA; Department of Medicine, Tulane University School of Medicine, New Orleans, LA, USA
| | - Harold Feldman
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Karin E Bornfeldt
- Department of Medicine, UW Medicine Diabetes Institute, University of Washington, Seattle, WA, USA
| | - Subramaniam Pennathur
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA; Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, USA.
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36
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Andraski AB, Singh SA, Higashi H, Lee LH, Aikawa M, Sacks FM. The distinct metabolism between large and small HDL indicates unique origins of human apolipoprotein A4. JCI Insight 2023; 8:162481. [PMID: 37092549 DOI: 10.1172/jci.insight.162481] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 03/01/2023] [Indexed: 04/25/2023] Open
Abstract
Apolipoprotein A4's (APOA4's) functions on HDL in humans are not well understood. A unique feature of APOA4 is that it is an intestinal apolipoprotein secreted on HDL and chylomicrons. The goal of this study was to gain a better understanding of the origin and function of APOA4 on HDL by studying its metabolism across 6 HDL sizes. Twelve participants completed a metabolic tracer study. HDL was isolated by APOA1 immunopurification and separated by size. Tracer enrichments for APOA4 and APOA1 were determined by targeted mass spectrometry, and metabolic rates were derived by compartmental modeling. APOA4 metabolism on small HDL (alpha3, prebeta, and very small prebeta) was distinct from that of APOA4 on large HDL (alpha0, 1, 2). APOA4 on small HDL appeared in circulation by 30 minutes and was relatively rapidly catabolized. In contrast, APOA4 on large HDL appeared in circulation later (1-2 hours) and had a much slower catabolism. The unique metabolic profiles of APOA4 on small and large HDL likely indicate that each has a distinct origin and function in humans. This evidence supports the notion that APOA4 on small HDL originates directly from the small intestine while APOA4 on large HDL originates from chylomicron transfer.
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Affiliation(s)
- Allison B Andraski
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Sasha A Singh
- Center for Interdisciplinary Cardiovascular Sciences, Division of Cardiovascular Medicine, and
| | - Hideyuki Higashi
- Center for Interdisciplinary Cardiovascular Sciences, Division of Cardiovascular Medicine, and
| | - Lang Ho Lee
- Center for Interdisciplinary Cardiovascular Sciences, Division of Cardiovascular Medicine, and
| | - Masanori Aikawa
- Center for Interdisciplinary Cardiovascular Sciences, Division of Cardiovascular Medicine, and
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Frank M Sacks
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Franczyk B, Gluba-Brzózka A, Ciałkowska-Rysz A, Ławiński J, Rysz J. The Impact of Aerobic Exercise on HDL Quantity and Quality: A Narrative Review. Int J Mol Sci 2023; 24:ijms24054653. [PMID: 36902082 PMCID: PMC10003711 DOI: 10.3390/ijms24054653] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 02/17/2023] [Accepted: 02/22/2023] [Indexed: 03/06/2023] Open
Abstract
High-density lipoproteins comprise roughly 25-30% of the circulating proteins involved in the transport of lipids in circulation. These particles differ in size and lipid composition. Recent evidence suggests that the quality of HDL particles (which depends on shape, size and the composition of proteins and lipids determining HDL functionality) may be more important than their quantity. The functionality of HDL is mirrored by its cholesterol efflux activity, as well as its antioxidant (including the protection of LDL against oxidation), anti-inflammatory and antithrombotic properties. The results of many studies and meta-analyses imply the beneficial impact of aerobic exercise on HDL-C levels. Physical activity was found to be usually associated with an increase in HDL cholesterol and a decrease in LDL cholesterol and triglycerides. Exercise, apart from inducing quantitative alterations in serum lipids, exerts a beneficial impact on HDL particle maturation, composition and functionality. The Physical Activity Guidelines Advisory Committee Report underlined the importance of establishing a program recommending exercises that enable attainment of maximal advantage at the lowest level of risk. The aim of this manuscript is to review the impact of different types of aerobic exercise (various intensities and durations) on the level and quality of HDL.
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Affiliation(s)
- Beata Franczyk
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-549 Lodz, Poland
| | - Anna Gluba-Brzózka
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-549 Lodz, Poland
- Correspondence: ; Tel.: +48-42-639-3750
| | | | - Janusz Ławiński
- Department of Urology, Institute of Medical Sciences, Medical College of Rzeszow University, 35-055 Rzeszow, Poland
| | - Jacek Rysz
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-549 Lodz, Poland
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38
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Size matters: HDL particle populations and the risk of infection. Nat Rev Cardiol 2023; 20:279-280. [PMID: 36792718 DOI: 10.1038/s41569-023-00844-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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39
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Martinez AE, Weissberger G, Kuklenyik Z, He X, Meuret C, Parekh T, Rees JC, Parks BA, Gardner MS, King SM, Collier TS, Harrington MG, Sweeney MD, Wang X, Zlokovic BV, Joe E, Nation DA, Schneider LS, Chui HC, Barr JR, Han SD, Krauss RM, Yassine HN. The small HDL particle hypothesis of Alzheimer's disease. Alzheimers Dement 2023; 19:391-404. [PMID: 35416404 PMCID: PMC10563117 DOI: 10.1002/alz.12649] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 02/08/2022] [Accepted: 02/12/2022] [Indexed: 01/03/2023]
Abstract
We propose the hypothesis that small high-density lipoprotein (HDL) particles reduce the risk of Alzheimer's disease (AD) by virtue of their capacity to exchange lipids, affecting neuronal membrane composition and vascular and synaptic functions. Concentrations of small HDLs in cerebrospinal fluid (CSF) and plasma were measured in 180 individuals ≥60 years of age using ion mobility methodology. Small HDL concentrations in CSF were positively associated with performance in three domains of cognitive function independent of apolipoprotein E (APOE) ε4 status, age, sex, and years of education. Moreover, there was a significant correlation between levels of small HDLs in CSF and plasma. Further studies will be aimed at determining whether specific components of small HDL exchange across the blood, brain, and CSF barriers, and developing approaches to exploit small HDLs for therapeutic purposes.
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Affiliation(s)
- Ashley E. Martinez
- Department of Medicine, University of Southern California, Los Angeles, California, USA
| | - Gali Weissberger
- The Interdisciplinary Department of Social Sciences, Bar Ilan University, Israel
| | - Zsuzsanna Kuklenyik
- Clinical Chemistry Branch, Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Xulei He
- Department of Medicine, University of Southern California, Los Angeles, California, USA
| | - Cristiana Meuret
- Department of Medicine, University of Southern California, Los Angeles, California, USA
| | - Trusha Parekh
- Department of Medicine, University of Southern California, Los Angeles, California, USA
| | - Jon C. Rees
- Clinical Chemistry Branch, Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Bryan A. Parks
- Clinical Chemistry Branch, Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Michael S. Gardner
- Clinical Chemistry Branch, Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Sarah M. King
- Departments of Pediatrics and Medicine, University of California, San Francisco, California, USA
| | | | - Michael G. Harrington
- Department of Neurology, University of Southern California, Los Angeles, California, USA
| | - Melanie D. Sweeney
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, University of Southern California, Los Angeles, California, USA
| | - Xinhui Wang
- Department of Neurology, University of Southern California, Los Angeles, California, USA
| | - Berislav V. Zlokovic
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, University of Southern California, Los Angeles, California, USA
| | - Elizabeth Joe
- Department of Neurology, University of Southern California, Los Angeles, California, USA
| | - Daniel A. Nation
- Irvine, Institute for Memory Impairments and Neurological Disorders, University of California, Irvine, California, USA
| | - Lon S. Schneider
- Department of Neurology, University of Southern California, Los Angeles, California, USA
- Department of Psychiatry and Behavioral Sciences, University of Southern California, Los Angeles, California, USA
| | - Helena C. Chui
- Department of Neurology, University of Southern California, Los Angeles, California, USA
| | - John R. Barr
- Clinical Chemistry Branch, Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - S. Duke Han
- Department of Family Medicine, University of Southern California, Los Angeles, California, USA
| | - Ronald M. Krauss
- Departments of Pediatrics and Medicine, University of California, San Francisco, California, USA
| | - Hussein N. Yassine
- Department of Medicine, University of Southern California, Los Angeles, California, USA
- Department of Neurology, University of Southern California, Los Angeles, California, USA
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40
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Ganjali S, Hosseini S, Rizzo M, Kontush A, Sahebkar A. Capacity of HDL to Efflux Cellular Cholesterol from Lipid-Loaded Macrophages Is Reduced in Patients with Familial Hypercholesterolemia. Metabolites 2023; 13:metabo13020197. [PMID: 36837816 PMCID: PMC9961594 DOI: 10.3390/metabo13020197] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/29/2022] [Accepted: 01/10/2023] [Indexed: 01/31/2023] Open
Abstract
This study aimed to evaluate the high-density lipoprotein (HDL) capacity to efflux cellular cholesterol from lipid-loaded macrophages to find a reliable and low-cost biomarker with the purpose of better evaluating the risk of premature cardiovascular (CV) events in FH patients. This case-controlled study comprised 16 homozygous (HOFH) and 18 heterozygous (HEFH) FH patients, as well as 20 healthy subjects recruited as controls. Two main subfractions of HDL (HDL2 (d = 1.063-1.125 g/mL) and HDL3 (d = 1.125-1.210 g/mL)) were isolated from the patients' serum samples using sequential ultracentrifugation. After compositional characterization, the capacity of HDL to efflux cholesterol (CEC%) from lipid-laden macrophages was measured. The HDL2 and HDL3 subfractions showed some differences in lipid and protein composition between the studied groups. In addition, both HDL subfractions (p < 0.001) revealed significantly reduced CEC% in HOFH patients (HDL2: 2.5 ± 0.1 and HDL3: 3.2 ± 0.2) in comparison with the HEFH (HDL2: 3.2 ± 0.1% and HDL3: 4.1 ± 0.2%) and healthy (HDL2: 3.3 ± 0.2% and HDL3: 4.5 ± 0.3%) subjects. Additionally, multinomial logistic regression results indicated that the CEC% of both HDL2 (OR: 0.091; 95% CI: 0.018-0.452, p < 0.01) and HDL3 (OR: 0.118; 95% CI: 0.035-0.399, p < 0.01) subfractions are strongly and inversely associated with the homozygous form of FH. A decreased capacity of HDL particles to efflux cholesterol from macrophages might identify homozygous FH patients who are at elevated risk for premature CVDs. Prospective studies with a large sample size are warranted to evaluate this hypothesis.
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Affiliation(s)
- Shiva Ganjali
- Department of Medical Biotechnology and Nanotechnology, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Susan Hosseini
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Manfredi Rizzo
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, School of Medicine, University of Palermo, 90133 Palermo, Italy
| | - Anatol Kontush
- Cardiovascular Diseases Research Unit, National Institute of Health and Medical Research (INSERM), Metabolism and Nutrition, ICAN, Sorbonne University, F-75013 Paris, France
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Correspondence:
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41
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HDL Functions-Current Status and Future Perspectives. Biomolecules 2023; 13:biom13010105. [PMID: 36671490 PMCID: PMC9855960 DOI: 10.3390/biom13010105] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 12/28/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
Cardiovascular disease (CVD) is the leading cause of death in Western countries. A low HDL-C is associated with the development of CVD. However, recent epidemiology studies have shown U-shaped curves between HDL-C and CVD mortality, with paradoxically increased CVD mortality in patients with extremely high HDL-C levels. Furthermore, HDL-C raising therapy using nicotinic acids or CETP inhibitors mostly failed to reduce CVD events. Based on this background, HDL functions rather than HDL-C could be a novel biomarker; research on the clinical utility of HDL functionality is ongoing. In this review, we summarize the current status of HDL functions and their future perspectives from the findings of basic research and clinical trials.
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42
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Niesor EJ, Nader E, Perez A, Lamour F, Benghozi R, Remaley A, Thein SL, Connes P. Red Blood Cell Membrane Cholesterol May Be a Key Regulator of Sickle Cell Disease Microvascular Complications. MEMBRANES 2022; 12:1134. [PMID: 36422126 PMCID: PMC9694375 DOI: 10.3390/membranes12111134] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/06/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Cell membrane lipid composition, especially cholesterol, affects many functions of embedded enzymes, transporters and receptors in red blood cells (RBC). High membrane cholesterol content affects the RBCs' main vital function, O2 and CO2 transport and delivery, with consequences on peripheral tissue physiology and pathology. A high degree of deformability of RBCs is required to accommodate the size of micro-vessels with diameters significantly lower than RBCs. The potential therapeutic role of high-density lipoproteins (HDL) in the removal of cholesterol and its activity regarding maintenance of an optimal concentration of RBC membrane cholesterol have not been well investigated. On the contrary, the focus for HDL research has mainly been on the clearance of cholesterol accumulated in atherosclerotic macrophages and plaques. Since all interventions aiming at decreasing cardiovascular diseases by increasing the plasma level of HDL cholesterol have failed so far in large outcome studies, we reviewed the potential role of HDL to remove excess membrane cholesterol from RBC, especially in sickle cell disease (SCD). Indeed, abundant literature supports a consistent decrease in cholesterol transported by all plasma lipoproteins in SCD, in addition to HDL, low- (LDL) and very low-density lipoproteins (VLDL). Unexpectedly, these decreases in plasma were associated with an increase in RBC membrane cholesterol. The concentration and activity of the main enzyme involved in the removal of cholesterol and generation of large HDL particles-lecithin cholesterol ester transferase (LCAT)-are also significantly decreased in SCD. These observations might partially explain the decrease in RBC deformability, diminished gas exchange and tendency of RBCs to aggregate in SCD. We showed that incubation of RBC from SCD patients with human HDL or the HDL-mimetic peptide Fx5A improves the impaired RBC deformability and decreases intracellular reactive oxygen species levels. We propose that the main physiological role of HDL is to regulate the cholesterol/phospholipid ratio (C/PL), which is fundamental to the transport of oxygen and its delivery to peripheral tissues.
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Affiliation(s)
| | - Elie Nader
- Laboratory LIBM EA7424, Vascular Biology and Red Blood Cell Team, University of Lyon, 69007 Lyon, France
| | - Anne Perez
- Hartis Pharma SA Nyon, 1260 Nyon, Switzerland
| | | | | | - Alan Remaley
- National Institutes of Health, Bethesda, MD 20814, USA
| | | | - Philippe Connes
- Laboratory LIBM EA7424, Vascular Biology and Red Blood Cell Team, University of Lyon, 69007 Lyon, France
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43
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von Eckardstein A, Nordestgaard BG, Remaley AT, Catapano AL. High-density lipoprotein revisited: biological functions and clinical relevance. Eur Heart J 2022; 44:1394-1407. [PMID: 36337032 PMCID: PMC10119031 DOI: 10.1093/eurheartj/ehac605] [Citation(s) in RCA: 65] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 09/16/2022] [Accepted: 10/10/2022] [Indexed: 11/09/2022] Open
Abstract
Abstract
Previous interest in high-density lipoproteins (HDLs) focused on their possible protective role in atherosclerotic cardiovascular disease (ASCVD). Evidence from genetic studies and randomized trials, however, questioned that the inverse association of HDL-cholesterol (HDL-C) is causal. This review aims to provide an update on the role of HDL in health and disease, also beyond ASCVD. Through evolution from invertebrates, HDLs are the principal lipoproteins, while apolipoprotein B-containing lipoproteins first developed in vertebrates. HDLs transport cholesterol and other lipids between different cells like a reusable ferry, but serve many other functions including communication with cells and the inactivation of biohazards like bacterial lipopolysaccharides. These functions are exerted by entire HDL particles or distinct proteins or lipids carried by HDL rather than by its cholesterol cargo measured as HDL-C. Neither does HDL-C measurement reflect the efficiency of reverse cholesterol transport. Recent studies indicate that functional measures of HDL, notably cholesterol efflux capacity, numbers of HDL particles, or distinct HDL proteins are better predictors of ASCVD events than HDL-C. Low HDL-C levels are related observationally, but also genetically, to increased risks of infectious diseases, death during sepsis, diabetes mellitus, and chronic kidney disease. Additional, but only observational, data indicate associations of low HDL-C with various autoimmune diseases, and cancers, as well as all-cause mortality. Conversely, extremely high HDL-C levels are associated with an increased risk of age-related macular degeneration (also genetically), infectious disease, and all-cause mortality. HDL encompasses dynamic multimolecular and multifunctional lipoproteins that likely emerged during evolution to serve several physiological roles and prevent or heal pathologies beyond ASCVD. For any clinical exploitation of HDL, the indirect marker HDL-C must be replaced by direct biomarkers reflecting the causal role of HDL in the respective disease.
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Affiliation(s)
- Arnold von Eckardstein
- Institute of Clinical Chemistry, University Hospital Zurich and University of Zurich , Zurich , Switzerland
| | - Børge G Nordestgaard
- Department of Clinical Biochemistry, Copenhagen University Hospital, Herlev and Gentofte Hospital , Herlev , Denmark
- The Copenhagen General Population Study, Copenhagen University Hospital, Herlev and Gentofte Hospital , Herlev , Denmark
- Institute of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen , Denmark
| | - Alan T Remaley
- Lipoprotein Metabolism Section, Translational Vascular Medicine Branch, National Heart, Lung, and Blood Institute, National Institutes of Health , Bethesda, MD , USA
| | - Alberico L Catapano
- Department of Pharmacological and Biomolecular Sciences, University of Milan , Milan , Italy
- IRCCS MultiMedica, Sesto S. Giovanni , Milan , Italy
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44
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On the Aggregation of Apolipoprotein A-I. Int J Mol Sci 2022; 23:ijms23158780. [PMID: 35955915 PMCID: PMC9369196 DOI: 10.3390/ijms23158780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/30/2022] [Accepted: 08/02/2022] [Indexed: 11/17/2022] Open
Abstract
In vivo, apolipoprotein A-I (ApoA-I) is commonly found together with lipids in so-called lipoprotein particles. The protein has also been associated with several diseases—such as atherosclerosis and amyloidosis—where insoluble aggregates containing ApoA-I are deposited in various organs or arteries. The deposited ApoA-I has been found in the form of amyloid fibrils, suggesting that amyloid formation may be involved in the development of these diseases. In the present study we investigated ApoA-I aggregation into amyloid fibrils and other aggregate morphologies. We studied the aggregation of wildtype ApoA-I as well as a disease-associated mutant, ApoA-I K107Δ, under different solution conditions. The aggregation was followed using thioflavin T fluorescence intensity. For selected samples the aggregates formed were characterized in terms of size, secondary structure content, and morphology using circular dichroism spectroscopy, dynamic light scattering, atomic force microscopy and cryo transmission electron microscopy. We find that ApoA-I may form globular protein-only condensates, in which the α-helical conformation of the protein is retained. The protein in its unmodified form appears resistant to amyloid formation; however, the conversion into amyloid fibrils rich in β-sheet is facilitated by oxidation or mutation. In particular, the K107Δ mutant shows higher amyloid formation propensity, and the end state appears to be a co-existence of β-sheet rich amyloid fibrils and α-helix-rich condensates.
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Streese L, Habisch H, Deiseroth A, Carrard J, Infanger D, Schmidt-Trucksäss A, Madl T, Hanssen H. Lipoprotein Subclasses Independently Contribute to Subclinical Variance of Microvascular and Macrovascular Health. Molecules 2022; 27:molecules27154760. [PMID: 35897932 PMCID: PMC9332701 DOI: 10.3390/molecules27154760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/15/2022] [Accepted: 07/21/2022] [Indexed: 11/16/2022] Open
Abstract
Lipoproteins are important cardiovascular (CV) risk biomarkers. This study aimed to investigate the associations of lipoprotein subclasses with micro- and macrovascular biomarkers to better understand how these subclasses relate to atherosclerotic CV diseases. One hundred and fifty-eight serum samples from the EXAMIN AGE study, consisting of healthy individuals and CV risk patients, were analysed with nuclear magnetic resonance (NMR) spectroscopy to quantify lipoprotein subclasses. Microvascular health was quantified by measuring retinal arteriolar and venular diameters. Macrovascular health was quantified by measuring carotid-to-femoral pulse wave velocity (PWV). Nineteen lipoprotein subclasses showed statistically significant associations with retinal vessel diameters and nine with PWV. These lipoprotein subclasses together explained up to 26% of variation (R2 = 0.26, F(29,121) = 2.80, p < 0.001) in micro- and 12% (R2 = 0.12, F(29,124) = 1.70, p = 0.025) of variation in macrovascular health. High-density (HDL-C) and low-density lipoprotein cholesterol (LDL-C) as well as triglycerides together explained up to 13% (R2 = 0.13, F(3143) = 8.42, p < 0.001) of micro- and 8% (R2 = 0.08, F(3145) = 5.46, p = 0.001) of macrovascular variation. Lipoprotein subclasses seem to reflect micro- and macrovascular end organ damage more precisely as compared to only measuring HDL-C, LDL-C and triglycerides. Further studies are needed to analyse how the additional quantification of lipoprotein subclasses can improve CV risk stratification and CV disease prediction.
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Affiliation(s)
- Lukas Streese
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, 4052 Basel, Switzerland; (L.S.); (A.D.); (J.C.); (D.I.); (A.S.-T.); (H.H.)
| | - Hansjörg Habisch
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria;
| | - Arne Deiseroth
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, 4052 Basel, Switzerland; (L.S.); (A.D.); (J.C.); (D.I.); (A.S.-T.); (H.H.)
| | - Justin Carrard
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, 4052 Basel, Switzerland; (L.S.); (A.D.); (J.C.); (D.I.); (A.S.-T.); (H.H.)
| | - Denis Infanger
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, 4052 Basel, Switzerland; (L.S.); (A.D.); (J.C.); (D.I.); (A.S.-T.); (H.H.)
| | - Arno Schmidt-Trucksäss
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, 4052 Basel, Switzerland; (L.S.); (A.D.); (J.C.); (D.I.); (A.S.-T.); (H.H.)
| | - Tobias Madl
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria;
- BioTechMed Graz, 8010 Graz, Austria
- Correspondence: ; Tel.: +43-316-385-71972
| | - Henner Hanssen
- Department of Sport, Exercise and Health, Medical Faculty, University of Basel, 4052 Basel, Switzerland; (L.S.); (A.D.); (J.C.); (D.I.); (A.S.-T.); (H.H.)
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Abstract
Lipid disorders involving derangements in serum cholesterol, triglycerides, or both are commonly encountered in clinical practice and often have implications for cardiovascular risk and overall health. Recent advances in knowledge, recommendations, and treatment options have necessitated an updated approach to these disorders. Older classification schemes have outlived their usefulness, yielding to an approach based on the primary lipid disturbance identified on a routine lipid panel as a practical starting point. Although monogenic dyslipidemias exist and are important to identify, most individuals with lipid disorders have polygenic predisposition, often in the context of secondary factors such as obesity and type 2 diabetes. With regard to cardiovascular disease, elevated low-density lipoprotein cholesterol is essentially causal, and clinical practice guidelines worldwide have recommended treatment thresholds and targets for this variable. Furthermore, recent studies have established elevated triglycerides as a cardiovascular risk factor, whereas depressed high-density lipoprotein cholesterol now appears less contributory than was previously believed. An updated approach to diagnosis and risk assessment may include measurement of secondary lipid variables such as apolipoprotein B and lipoprotein(a), together with selective use of genetic testing to diagnose rare monogenic dyslipidemias such as familial hypercholesterolemia or familial chylomicronemia syndrome. The ongoing development of new agents-especially antisense RNA and monoclonal antibodies-targeting dyslipidemias will provide additional management options, which in turn motivates discussion on how best to incorporate them into current treatment algorithms.
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Affiliation(s)
- Amanda J Berberich
- Department of Medicine; Schulich School of Medicine and Dentistry, Western University, London, ON, Canada, N6A 5C1.,Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada, N6A 5B7
| | - Robert A Hegele
- Department of Medicine; Schulich School of Medicine and Dentistry, Western University, London, ON, Canada, N6A 5C1.,Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada, N6A 5B7
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Klobučar I, Degoricija V, Potočnjak I, Trbušić M, Pregartner G, Berghold A, Fritz-Petrin E, Habisch H, Madl T, Frank S. HDL-apoA-II Is Strongly Associated with 1-Year Mortality in Acute Heart Failure Patients. Biomedicines 2022; 10:biomedicines10071668. [PMID: 35884971 PMCID: PMC9313377 DOI: 10.3390/biomedicines10071668] [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: 05/20/2022] [Revised: 07/04/2022] [Accepted: 07/06/2022] [Indexed: 12/15/2022] Open
Abstract
The prognostic value of the subset of high-density lipoprotein (HDL) particles containing apolipoprotein (apo)A-II (HDL-apoA-II) in acute heart failure (AHF) remains unexplored. In this study, baseline serum levels of HDL-apoA-II (total and subfractions 1−4) were measured in 315 AHF patients using NMR spectroscopy. The mean patient age was 74.2 ± 10.5 years, 136 (43.2%) were female, 288 (91.4%) had a history of cardiomyopathy, 298 (94.6%) presented as New York Heart Association class 4, and 118 (37.5%) patients died within 1 year after hospitalization for AHF. Multivariable Cox regression analyses, adjusted for age and sex as well as other clinical and laboratory parameters associated with 1-year mortality in the univariable analyses, revealed a significant inverse association of HDL-apoA-II (hazard ratio (HR) 0.67 per 1 standard deviation (1 SD) increase, 95% confidence interval (CI) 0.47−0.94, p = 0.020), HDL2-apoA-II (HR 0.72 per 1 SD increase, 95% CI 0.54−0.95, p = 0.019), and HDL3-apoA-II (HR 0.59 per 1 SD increase, 95% CI 0.43−0.80, p < 0.001) with 1-year mortality. We conclude that low baseline HDL-apoA-II, HDL2-apoA-II, and HDL3-apoA-II serum levels are associated with increased 1-year mortality in AHF patients and may thus be of prognostic value in AHF.
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Affiliation(s)
- Iva Klobučar
- Department of Cardiology, Sisters of Charity University Hospital Centre, 10000 Zagreb, Croatia; (I.K.); (M.T.)
| | - Vesna Degoricija
- School of Medicine, University of Zagreb, 10000 Zagreb, Croatia;
- Department of Medicine, Sisters of Charity University Hospital Centre, 10000 Zagreb, Croatia
| | - Ines Potočnjak
- Institute for Clinical Medical Research and Education, Sisters of Charity University Hospital Centre, 10000 Zagreb, Croatia;
| | - Matias Trbušić
- Department of Cardiology, Sisters of Charity University Hospital Centre, 10000 Zagreb, Croatia; (I.K.); (M.T.)
- School of Medicine, University of Zagreb, 10000 Zagreb, Croatia;
| | - Gudrun Pregartner
- Institute for Medical Informatics, Statistics und Documentation, Medical University of Graz, 8036 Graz, Austria; (G.P.); (A.B.)
| | - Andrea Berghold
- Institute for Medical Informatics, Statistics und Documentation, Medical University of Graz, 8036 Graz, Austria; (G.P.); (A.B.)
| | - Eva Fritz-Petrin
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, 8036 Graz, Austria;
| | - Hansjörg Habisch
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria; (H.H.); (T.M.)
| | - Tobias Madl
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria; (H.H.); (T.M.)
- BioTechMed-Graz, 8010 Graz, Austria
| | - Saša Frank
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria; (H.H.); (T.M.)
- BioTechMed-Graz, 8010 Graz, Austria
- Correspondence: ; Tel.: +43-316-3857-1969
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48
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Cai Z, Deng L, Chen Y, Ling Y. Effect of thyroid function on pre-β1 high-density lipoprotein levels in patients with Graves' disease undergoing radioiodine treatment. Endocrine 2022; 76:648-659. [PMID: 35235144 DOI: 10.1007/s12020-022-03024-9] [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: 11/22/2021] [Accepted: 02/16/2022] [Indexed: 11/03/2022]
Abstract
CONTEXT The metabolism of HDL is altered in thyroid dysfunctions. Preβ-1 HDL is a very small discoidal precursor HDL and promotes cholesterol efflux via ABCA1. The effects of thyroid dysfunctions on pre-β1 HDL are unknown. Thyroid hormone regulates ANGPTL3 expression, which may participate in HDL metabolism in thyroid dysfunctions. OBJECTIVE To determine the variation of HDL subfractions, especially preβ-1 HDL in thyroid dysfunctions, and whether ANGPTL3 mediates the effect of thyroid function on HDL metabolism. METHODS We recruited 26 patients with Graves' disease undergoing radioiodine treatment. They were evaluated at three time points: at baseline, when they were hypothyroid after radioiodine treatment, and when they were on stable levothyroxine replacement and euthyroid. RESULTS The concentrations of smaller HDL particles Preβ-1 HDL and HDL3 were highest at the hyperthyroid state, and lowest at the hypothyroid state. While the larger HDL particles HDL2 and HDL1 changed just the opposite. Preβ1-HDL and HDL3 were positively correlated to fT3 and fT4, while were negatively correlated to TSH. In contrast, HDL1 was negatively associated with fT3 and fT4, while was positively associated with TSH. The correlations between thyroid hormones and HDL subfractions remained significant after adjusting for ANGPTL3. CONCLUSIONS There is a shift form smaller HDL particles pre-β1 HDL and HDL3 to larger HDL particles HDL2 and HDL1 in hypothyroidism, while the change is just the opposite in hyperthyroidism. In future, cholesterol efflux capacity should be measured to determine if the function of HDL particles also changes with the shifting of HDL subfractions.
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Affiliation(s)
- Zhenqin Cai
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, No.180 Fenglin Road, Shanghai, 200032, China
| | - Lingxin Deng
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, No.180 Fenglin Road, Shanghai, 200032, China
| | - Yunqin Chen
- Shanghai Institute of Cardiovascular Diseases, Fudan University, No.180 Fenglin Road, Shanghai, 200032, China.
| | - Yan Ling
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, No.180 Fenglin Road, Shanghai, 200032, China.
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49
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Lenz KD, Klosterman KE, Mukundan H, Kubicek-Sutherland JZ. Lipoprotein capture ELISA method for the sensitive detection of amphiphilic biomarkers. Anal Biochem 2022; 652:114747. [DOI: 10.1016/j.ab.2022.114747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/18/2022] [Accepted: 05/19/2022] [Indexed: 11/28/2022]
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50
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Abstract
Charge detection mass spectrometry (CDMS) is a single-particle technique where the masses of individual ions are determined from simultaneous measurement of their mass-to-charge ratio (m/z) and charge. Masses are determined for thousands of individual ions, and then the results are binned to give a mass spectrum. Using this approach, accurate mass distributions can be measured for heterogeneous and high-molecular-weight samples that are usually not amenable to analysis by conventional mass spectrometry. Recent applications include heavily glycosylated proteins, protein complexes, protein aggregates such as amyloid fibers, infectious viruses, gene therapies, vaccines, and vesicles such as exosomes.
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Affiliation(s)
- Martin F Jarrold
- Chemistry Department, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47404, United States
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