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Pullinger CR, O’Connor PM, Naya‐Vigne JM, Kunitake ST, Movsesyan I, Frost PH, Malloy MJ, Kane JP. Levels of Prebeta-1 High-Density Lipoprotein Are a Strong Independent Positive Risk Factor for Coronary Heart Disease and Myocardial Infarction: A Meta-Analysis. J Am Heart Assoc 2021; 10:e018381. [PMID: 33728928 PMCID: PMC8174380 DOI: 10.1161/jaha.120.018381] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background We previously showed that levels of prebeta-1 high-density lipoprotein (HDL), the principal acceptor of cholesterol effluxed from cells, including artery wall macrophages, are positively associated with coronary heart disease (CHD) and myocardial infarction (MI) risk. Methods and Results In a multiethnic follow-up cohort of 1249 individuals from University of California-San Francisco clinics, we determined the degree to which prebeta-1 HDL levels, both absolute and percentage of apolipoprotein AI, are associated with CHD and history of MI. Independent, strong, positive associations were found. Meta-analysis revealed for the absolute prebeta-1 HDL for the top tertile versus the lowest, unadjusted odds ratios of 1.90 (95% CI, 1.40-2.58) for CHD and 1.79 (95% CI, 1.35-2.36) for MI. For CHD, adjusting for established risk factors, the top versus bottom tertiles, quintiles, and deciles yielded sizable odds ratios of 2.37 (95% CI, 1.74-3.25, P<0.001), 3.20 (95% CI, 2.07-4.94, P<0.001), and 4.00 (95% CI, 2.11-7.58, P<0.001), respectively. Men and women were analyzed separately in a combined data set of 2507 individuals. The odds ratios for CHD and MI risk were similar. Higher levels of prebeta-1 HDL were associated with all 5 metabolic syndrome features. Addition of prebeta-1 HDL to these 5 features resulted in significant improvements in risk-prediction models. Conclusions Analysis of 2507 subjects showed conclusively that levels of prebeta-1 HDL are strongly associated with a history of CHD or MI, independently of traditional risk factors. Addition of prebeta-1 HDL can significantly improve clinical assessment of risk of CHD and MI.
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Affiliation(s)
- Clive R. Pullinger
- Cardiovascular Research InstituteUniversity of CaliforniaSan FranciscoCA
- Department of Physiological NursingUniversity of CaliforniaSan FranciscoCA
| | | | | | - Steven T. Kunitake
- Cardiovascular Research InstituteUniversity of CaliforniaSan FranciscoCA
| | - Irina Movsesyan
- Cardiovascular Research InstituteUniversity of CaliforniaSan FranciscoCA
| | - Philip H. Frost
- Cardiovascular Research InstituteUniversity of CaliforniaSan FranciscoCA
- Department of MedicineUniversity of CaliforniaSan FranciscoCA
| | - Mary J. Malloy
- Cardiovascular Research InstituteUniversity of CaliforniaSan FranciscoCA
- Department of MedicineUniversity of CaliforniaSan FranciscoCA
| | - John P. Kane
- Cardiovascular Research InstituteUniversity of CaliforniaSan FranciscoCA
- Department of MedicineUniversity of CaliforniaSan FranciscoCA
- Department of Biochemistry and BiophysicsUniversity of CaliforniaSan FranciscoCA
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Greco D, Kocyigit D, Adorni MP, Marchi C, Ronda N, Bernini F, Gurses KM, Canpinar H, Guc D, Oguz SH, Gurlek A, Strazzella A, Simonelli S, Tokgozoglu L, Zimetti F. Vitamin D replacement ameliorates serum lipoprotein functions, adipokine profile and subclinical atherosclerosis in pre-menopausal women. Nutr Metab Cardiovasc Dis 2018; 28:822-829. [PMID: 29954641 DOI: 10.1016/j.numecd.2018.04.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 03/22/2018] [Accepted: 04/23/2018] [Indexed: 01/22/2023]
Abstract
BACKGROUND AND AIMS Low vitamin D (vitD) has been linked to increased cardiovascular (CV) risk, but the effects of vitD supplementation are not clarified. We evaluated the impact of vitD normalization on HDL cholesterol efflux capacity (CEC), which inversely correlates with CV risk, the proatherogenic serum cholesterol loading capacity (CLC), adipokine profile and subclinical atherosclerosis. METHODS AND RESULTS Healthy premenopausal women with vitD deficiency (n = 31) underwent supplementation. Subclinical atherosclerosis was evaluated by flow-mediated dilation (FMD), pulse wave velocity (PWV) and augmentation index (AIx), measured with standard techniques. HDL CEC and serum CLC were measured by a radioisotopic and fluorimetric assay, respectively. Malondialdehyde (MDA) in HDL was quantified by the TBARS assay. Pre-β HDL was assessed by 2D-electrophoresis. Serum adipokines were measured by ELISA. VitD replacement restored normal levels of serum 25-hydroxyvitamin D (25OHD) and significantly improved FMD (+4%; p < 0.001), PWV (-4.1%: p < 0.001) and AIx (-16.1%; p < 0.001). Total CEC was significantly improved (+19.5%; p = 0.003), with a specific increase in the ABCA1-mediated CEC (+70.8%; p < 0.001). HDL-MDA slightly but significantly decreased (-9.6%; p = 0.027), while no difference was detected in pre-β HDL. No change was observed in aqueous diffusion nor in the ABCG1-mediated CEC. Serum CLC was significantly reduced (-13.3%; p = 0.026). Levels of adiponectin were increased (+50.6%; p < 0.0001) and resistin levels were decreased (-24.3%; p < 0.0001). After vitD replacement, an inverse relationship was found linking the ABCA1-mediated CEC with pre-β HDL (r2 = 0.346; p < 0.001) and resistin (r2 = 0.220; p = 0.009). CONCLUSION Our data support vitD supplementation for CV risk prevention.
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Affiliation(s)
- D Greco
- Biopharmanet-Tec Center, University of Parma, Parma, Italy
| | - D Kocyigit
- Department of Cardiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - M P Adorni
- Department of Food and Drug, University of Parma, Parma, Italy
| | - C Marchi
- Department of Food and Drug, University of Parma, Parma, Italy
| | - N Ronda
- Department of Food and Drug, University of Parma, Parma, Italy
| | - F Bernini
- Department of Food and Drug, University of Parma, Parma, Italy.
| | - K M Gurses
- Department of Cardiology, University of Health Sciences, Konya Training and Research Hospital, Konya, Turkey
| | - H Canpinar
- Department of Basic Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| | - D Guc
- Department of Basic Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| | - S H Oguz
- Department of Internal Medicine, Section of Endocrinology and Metabolism, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - A Gurlek
- Department of Internal Medicine, Section of Endocrinology and Metabolism, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - A Strazzella
- Centro E. Grossi Paoletti, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milano, Italy
| | - S Simonelli
- Centro E. Grossi Paoletti, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milano, Italy
| | - L Tokgozoglu
- Department of Cardiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - F Zimetti
- Department of Food and Drug, University of Parma, Parma, Italy
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Sarzynski MA, Burton J, Rankinen T, Blair SN, Church TS, Després JP, Hagberg JM, Landers-Ramos R, Leon AS, Mikus CR, Rao DC, Seip RL, Skinner JS, Slentz CA, Thompson PD, Wilund KR, Kraus WE, Bouchard C. The effects of exercise on the lipoprotein subclass profile: A meta-analysis of 10 interventions. Atherosclerosis 2015; 243:364-72. [PMID: 26520888 PMCID: PMC4663138 DOI: 10.1016/j.atherosclerosis.2015.10.018] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 10/12/2015] [Accepted: 10/14/2015] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The goal was to examine lipoprotein subclass responses to regular exercise as measured in 10 exercise interventions derived from six cohorts. METHODS Nuclear magnetic resonance spectroscopy was used to quantify average particle size, total and subclass concentrations of very low-density lipoprotein, low-density lipoprotein, and high-density lipoprotein particles (VLDL-P, LDL-P, and HDL-P, respectively) before and after an exercise intervention in 1555 adults from six studies, encompassing 10 distinct exercise programs: APOE (N = 106), DREW (N = 385), GERS (N = 79), HERITAGE (N = 715), STRRIDE I (N = 168) and II (N = 102). Random-effects meta-analyses were performed to evaluate the overall estimate of mean change across the unadjusted and adjusted mean change values from each exercise group. RESULTS Meta-analysis of unadjusted data showed that regular exercise induced significant decreases in the concentration of large VLDL-P, small LDL-P, and medium HDL-P and mean VLDL-P size, with significant increases in the concentration of large LDL-P and large HDL-P and mean LDL-P size. These changes remained significant in meta-analysis with adjustment for age, sex, race, baseline body mass index, and baseline trait value. CONCLUSIONS Despite differences in exercise programs and study populations, regular exercise produced putatively beneficial changes in the lipoprotein subclass profile across 10 exercise interventions. Further research is needed to examine how exercise-induced changes in lipoprotein subclasses may be associated with (concomitant changes in) cardiovascular disease risk.
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Affiliation(s)
| | - Jeffrey Burton
- Pennington Biomedical Research Center, Baton Rouge, LA, USA
| | - Tuomo Rankinen
- Pennington Biomedical Research Center, Baton Rouge, LA, USA
| | - Steven N Blair
- Department of Exercise Science, University of South Carolina, Columbia, SC, USA
| | | | - Jean-Pierre Després
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, Canada
| | - James M Hagberg
- Department of Kinesiology, University of Maryland, College Park, MD, USA
| | - Rian Landers-Ramos
- Department of Kinesiology, University of Maryland, College Park, MD, USA
| | - Arthur S Leon
- School of Kinesiology, University of Minnesota, Minneapolis, MN, USA
| | - Catherine R Mikus
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA
| | - D C Rao
- Division of Biostatistics, Washington University School of Medicine, St. Louis, MO, USA
| | - Richard L Seip
- Cardiology Division, Hartford Hospital, Hartford, CT, USA
| | | | - Cris A Slentz
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA
| | | | - Kenneth R Wilund
- Department of Kinesiology and Community Health, University of Illinois, Urbana-Champaign, IL, USA
| | - William E Kraus
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA
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Lucero D, Sviridov D, Freeman L, López GI, Fassio E, Remaley AT, Schreier L. Increased cholesterol efflux capacity in metabolic syndrome: Relation with qualitative alterations in HDL and LCAT. Atherosclerosis 2015; 242:236-42. [PMID: 26232163 DOI: 10.1016/j.atherosclerosis.2015.07.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Revised: 07/02/2015] [Accepted: 07/08/2015] [Indexed: 11/18/2022]
Abstract
BACKGROUND Metabolic syndrome (MetS) is associated with changes in HDL levels, composition and sub-fraction profile. Whether these alterations affect HDL anti-atherogenic function, specifically measured as its capacity to perform cholesterol efflux, is not yet clearly known. OBJECTIVE To evaluate the relation between serum cholesterol efflux capacity and the changes in HDL composition and sub-fraction profile in MetS. METHODS In 35 non-treated MetS patients and 15 healthy controls, HDL mediated cholesterol efflux was measured as the ability of apoB-depleted serum to accept cholesterol from cholesterol-loaded BHK cells expressing either ABCA1 or ABCG1. Additionally we determined: lipid profile, HDL sub-fractions (NMR) and LCAT mass (ELISA). Isolated HDL (δ:1.063-1.210 g/mL) was chemically characterized. Pre-β1-HDL was determined by 2D-electrophoresis in a sub-group of MetS and controls (n = 6 each). RESULTS Surprisingly, MetS patients presented higher ABCA1 mediated cholesterol efflux (10.4 ± 1.8 vs. 8.7 ± 0.3%; p = 0.0001), without differences in ABCG1 efflux. In MetS, HDL showed reduction in particle size and number (p < 0.02) and lower large/small HDL ratio (p = 0.05), as well as triglyceride enrichment (p = 0.0001). Pre-β1-HDL was increased in MetS (p = 0.048) and correlated with ABCA1-cholesterol efflux (r = 0.64; p = 0.042). LCAT mass showed a tendency to reduction in MetS (p = 0.08), and inversely correlated with ABCA1-cholesterol efflux (r = -0.51; p = 0.001), independently of obesity and insulin-resistance (β = -0.40, p = 0.034). CONCLUSION This is the first description of ABCA1 mediated cholesterol efflux in MetS. Regardless the reduced HDL-cholesterol, in vitro cholesterol efflux capacity by ABCA1 was enhanced, linked to increased pre-β1-HDL and slightly reduced in LCAT mass that would probably reflect a delay in reverse cholesterol transport occurring in MetS.
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Affiliation(s)
- Diego Lucero
- Laboratory of Lipids and Atherosclerosis, Department of Clinical Biochemistry, Faculty of Pharmacy and Biochemistry, INFIBIOC, University of Buenos Aires, Argentina; Lipoprotein Metabolism Section, National Heart, Lung, Blood Institute, National Institutes of Health, Bethesda, Maryland, USA.
| | | | - Lita Freeman
- Lipoprotein Metabolism Section, National Heart, Lung, Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Graciela I López
- Laboratory of Lipids and Atherosclerosis, Department of Clinical Biochemistry, Faculty of Pharmacy and Biochemistry, INFIBIOC, University of Buenos Aires, Argentina
| | - Eduardo Fassio
- Department of Gastroenterology, National Hospital "Prof. A. Posadas", Buenos Aires, Argentina
| | - Alan T Remaley
- Lipoprotein Metabolism Section, National Heart, Lung, Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Laura Schreier
- Laboratory of Lipids and Atherosclerosis, Department of Clinical Biochemistry, Faculty of Pharmacy and Biochemistry, INFIBIOC, University of Buenos Aires, Argentina
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Masana L, Cabré A, Heras M, Amigó N, Correig X, Martínez-Hervás S, Real JT, Ascaso JF, Quesada H, Julve J, Palomer X, Vázquez-Carrera M, Girona J, Plana N, Blanco-Vaca F. Remarkable quantitative and qualitative differences in HDL after niacin or fenofibrate therapy in type 2 diabetic patients. Atherosclerosis 2014; 238:213-9. [PMID: 25528430 DOI: 10.1016/j.atherosclerosis.2014.12.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 12/01/2014] [Accepted: 12/04/2014] [Indexed: 11/19/2022]
Abstract
HDL-increasing drugs such as fenofibrate and niacin have failed to decrease the cardiovascular risk in patients with type 2 diabetes. Drug-mediated quantitative and qualitative HDL modifications could be involved in these negative results. To evaluate the quantitative and qualitative effects of niacin and fenofibrate on HDL in patients with type 2 diabetes, a prospective, randomised controlled intervention trial was conducted. Thirty type 2 diabetic patients with low HDL were randomised to receive either fenofibrate (FFB) or niacin + laropiprant (ERN/LPR) as an add-on to simvastatin treatment for 12 weeks according to a crossover design. At the basal point and after each intervention period, physical examinations and comprehensive standard biochemical determinations and HDL metabolomics were performed. Thirty nondiabetic patients with normal HDL were used as a basal control group. ERN/LRP, but not FFB, significantly increased HDL cholesterol. Neither ERN/LRP nor FFB reversed the HDL particle size or particle number to normal. ERN/LRP increased apoA-I but not apoA-II, whereas FFB produced the opposite effect. FFB significantly increased Preβ1-HDL, whereas ERN/LRP tended to lower Preβ1-HDL. CETP and LCAT activities were significantly decreased only by ERN/LRP. PAF-AH activity in HDL and plasma decreased with the use of both agents. Despite their different actions on antioxidant parameters, none of the treatments induced detectable antioxidant improvements. ERN/LRP and FFB had strikingly different effects on HDL quantity and quality, as well as on HDL cholesterol concentrations. When prescribing HDL cholesterol increasing drugs, this differential action should be considered.
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Affiliation(s)
- Luís Masana
- Vascular Medicine and Metabolism Unit, Research Unit on Lipids and Atherosclerosis, "Sant Joan" University Hospital, Universitat Rovira i Virgili, IISPV, Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), Reus, Spain.
| | - Anna Cabré
- Vascular Medicine and Metabolism Unit, Research Unit on Lipids and Atherosclerosis, "Sant Joan" University Hospital, Universitat Rovira i Virgili, IISPV, Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), Reus, Spain
| | - Mercedes Heras
- Vascular Medicine and Metabolism Unit, Research Unit on Lipids and Atherosclerosis, "Sant Joan" University Hospital, Universitat Rovira i Virgili, IISPV, Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), Reus, Spain
| | - Núria Amigó
- Metabolomics Platform and Center for Omic Sciences, Universitat Rovira i Virgili, IISPV, CIBERDEM, Reus, Spain
| | - Xavier Correig
- Metabolomics Platform and Center for Omic Sciences, Universitat Rovira i Virgili, IISPV, CIBERDEM, Reus, Spain
| | - Sergio Martínez-Hervás
- Endocrinology and Nutrition Department, Hospital Clinico Universitario, CIBERDEM, INCLIVA, Department of Medicine, University of Valencia, Valencia, Spain
| | - José T Real
- Endocrinology and Nutrition Department, Hospital Clinico Universitario, CIBERDEM, INCLIVA, Department of Medicine, University of Valencia, Valencia, Spain
| | - Juan F Ascaso
- Endocrinology and Nutrition Department, Hospital Clinico Universitario, CIBERDEM, INCLIVA, Department of Medicine, University of Valencia, Valencia, Spain
| | - Helena Quesada
- Institut d'Investigació Biomèdica Sant Pau (IIB Sant Pau), CIBERDEM, Barcelona, Spain
| | - Josep Julve
- Department of Biochemistry and Molecular Biology, Universitat Autònoma de Barcelona, Barcelona, Spain; Institut d'Investigació Biomèdica Sant Pau (IIB Sant Pau), CIBERDEM, Barcelona, Spain
| | - Xavier Palomer
- Department of Pharmacology and Therapeutic Chemistry, Institut de Biomedicina de la Universitat de Barcelona (IBUB) and CIBERDEM, Faculty of Pharmacy, University of Barcelona, Barcelona, Spain
| | - Manuel Vázquez-Carrera
- Department of Pharmacology and Therapeutic Chemistry, Institut de Biomedicina de la Universitat de Barcelona (IBUB) and CIBERDEM, Faculty of Pharmacy, University of Barcelona, Barcelona, Spain
| | - Josefa Girona
- Vascular Medicine and Metabolism Unit, Research Unit on Lipids and Atherosclerosis, "Sant Joan" University Hospital, Universitat Rovira i Virgili, IISPV, Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), Reus, Spain
| | - Núria Plana
- Vascular Medicine and Metabolism Unit, Research Unit on Lipids and Atherosclerosis, "Sant Joan" University Hospital, Universitat Rovira i Virgili, IISPV, Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), Reus, Spain
| | - Francisco Blanco-Vaca
- Department of Biochemistry and Molecular Biology, Universitat Autònoma de Barcelona, Barcelona, Spain; Institut d'Investigació Biomèdica Sant Pau (IIB Sant Pau), CIBERDEM, Barcelona, Spain
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Pan J, Shilian P, Ishida B, Wu X, Kane JP, Malloy MJ, Charles MA. Effect of niacin on preβ-1 high-density lipoprotein levels in diabetes. Metabolism 2011; 60:292-7. [PMID: 20303127 DOI: 10.1016/j.metabol.2010.01.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2006] [Accepted: 01/26/2010] [Indexed: 11/25/2022]
Abstract
Preβ-1 high-density lipoprotein (HDL) is an acceptor of peripheral free cholesterol and thus a participant in reverse cholesterol transport. Because patients with diabetes may have defects in reverse cholesterol transport, we hypothesized that (1) preβ-1 HDL might be decreased in diabetes and (2) because niacin improves reverse cholesterol transport and may stimulate preβ-1 HDL maturation, niacin would further decrease steady-state levels of preβ-1 HDL in diabetes. Absolute levels of preβ-1 HDL mass were measured using an isotopic dilution-ultrafiltration assay that measures apolipoprotein (apo) A-I after physically isolating preβ-1. Plasma apo A-I concentration and routine lipids were also evaluated in 11 diabetic patients. Diabetic subjects have a nearly 50% reduction of circulating levels of preβ-1 HDL to 36 ± 22 (1 SD) μg/mL compared with our previously published values of 73 ± 44 μg/mL in 136 healthy subjects. After niacin therapy, there was a further 17% reduction of preβ-1 HDL levels to 30 ± 26 μg/mL (P < .026) compared with baseline. The percentage of preβ-1 HDL in diabetic patients, as a percentage of total apo A-I, was about half of the normal value of 6.1% ± 3.6%; after niacin in diabetic patients, the percentage further decreased from 3.3% ± 2.1% to 2.3% ± 1.9% (P < .003). Absolute levels of apo A-I were similar in diabetic patients (1.14 ± 0.29) and healthy subjects (1.24 ± 0.24), and were unchanged by niacin in diabetic patients. We conclude with the novel observations that diabetes is associated with significantly reduced levels of preβ-1 HDL and that, after niacin treatment, a further lowering of preβ-1 HDL levels occur. Several altered mechanisms of RCT in diabetes are consistent with low levels of preβ-1 HDL both before and after niacin treatment.
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7
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de la Llera-Moya M, Drazul-Schrader D, Asztalos BF, Cuchel M, Rader DJ, Rothblat GH. The ability to promote efflux via ABCA1 determines the capacity of serum specimens with similar high-density lipoprotein cholesterol to remove cholesterol from macrophages. Arterioscler Thromb Vasc Biol 2010; 30:796-801. [PMID: 20075420 DOI: 10.1161/atvbaha.109.199158] [Citation(s) in RCA: 319] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE We measured efflux from macrophages to apolipoprotein B-depleted serum from 263 specimens and found instances in which serum having similar high-density lipoprotein cholesterol (HDL-C) differed in their efflux capacity. Thus, we wanted to elucidate why efflux capacity could be independent of total HDL-C or apolipoprotein A-I (apoA-I). METHODS AND RESULTS To understand why sera with similar HDL-C or apoA-I could differ in total efflux capacity, we assessed their ability to promote efflux via the pathways expressed in cAMP-treated J774 macrophages. Briefly, macrophages were preincubated with probucol to block ABCA1, with BLT-1 to block SR-BI, and with both inhibitors to measure residual efflux. ABCG1 efflux was measured with transfected BHK-1 cells. We used apolipoprotein B-depleted serum from specimens with similar HDL-C values at the 25(th) and 75(th) percentiles. Specimens in each group were classified as having high or low efflux based on total efflux being above or below the group average. We found that independently of HDL-C, sera with higher efflux capacity had a significant increase in ABCA1-mediated efflux, which was significantly correlated to the concentration of pre beta-1 HDL. The same result was obtained when these sera were similarly analyzed based on similar apoA-I. CONCLUSIONS Sera with similar HDL-C or apoA-I differ in their ability to promote macrophage efflux because of differences in the concentration of pre beta-1 HDL.
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Affiliation(s)
- Margarita de la Llera-Moya
- Division of Gastroenterology, Hepatology and Nutrition, The Children's Hospital of Philadelphia, 3615 Civic Center Blvd, Philadelphia, PA 19104, USA.
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8
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Filippatos TD, Liberopoulos EN, Kostapanos M, Gazi IF, Papavasiliou EC, Kiortsis DN, Tselepis AD, Elisaf MS. The effects of orlistat and fenofibrate, alone or in combination, on high-density lipoprotein subfractions and pre-beta1-HDL levels in obese patients with metabolic syndrome. Diabetes Obes Metab 2008; 10:476-83. [PMID: 17459096 DOI: 10.1111/j.1463-1326.2007.00733.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE We assessed the effect of orlistat and fenofibrate, alone or in combination, on plasma high-density lipoprotein (HDL) subfractions and plasma pre-beta1-HDL levels in overweight and obese subjects with metabolic syndrome (MetS). METHODS Patients (n = 89) were prescribed a low-fat low-calorie diet and were randomly allocated to receive orlistat 120 mg three times daily (O group), micronized fenofibrate 200 mg/day (F group) or both (OF group) for 6 months. HDL subfractions were determined using a polyacrylamide gel tube electrophoresis method and pre-beta1-HDL levels using enzyme-linked immunoabsorbent assay. RESULTS We observed a significant change of high-density lipoprotein cholesterol (HDL-C) levels only in the F group (+3%, p < 0.05). Large HDL-C levels were significantly increased and small HDL-C levels were significantly reduced with O administration. In F group we observed a significant increase of small HDL-C levels. No significant change of large or small HDL-C levels was observed with combination treatment. We observed a significant increase of pre-beta1-HDL levels in all groups, which was significantly greater in OF group compared with O or F monotherapy. CONCLUSION OF combination increased the antiatherogenic pre-beta1-HDL levels in overweight and obese patients with MetS. Furthermore, OF combination counterbalanced the reduction of small HDL-C levels observed with orlistat monotherapy.
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Affiliation(s)
- T D Filippatos
- Department of Internal Medicine, School of Medicine, University of Ioannina, Ioannina, Greece
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9
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Affiliation(s)
- Satoshi Hirayama
- Division of Endocrinology and Metabolism, Niigata University, Asahimachi 1-757, Niigata, 951-8510, Japan
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10
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Tian L, Fu M, Jia L, Xu Y, Long S, Tian H, Tian Y. Relationship Between Apolipoprotein Concentrations and HDL Subclasses Distribution. Lipids 2007; 42:419-26. [PMID: 17476546 DOI: 10.1007/s11745-007-3031-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2006] [Accepted: 01/21/2007] [Indexed: 11/27/2022]
Abstract
Alterations in plasma apolipoproteins levels can influence the composition, content, and distribution of plasma lipoproteins that affect the risk of atherosclerosis. This study assessed the relationship between plasma apolipoproteins levels, mainly apoAI, and HDL subclass distribution. The contents of plasma HDL subclasses were determined by two-dimensional gel electrophoresis coupled with immunodetection in 545 Chinese subjects. Compared with a low apoAI group, the contents of all HDL subclasses increased significantly both in middle and high apoAI group, and the contents of large-sized HDL(2b) increased more significantly relative to those of small-sized prebeta(1)-HDL in a high apoAI group. When apoAI and HDL-C levels increased simultaneously, in comparison to a low apoAI along with HDL-C concentration group, a significant increase (116%) was shown in HDL2b but only a slight increase (26%) in prebeta1-HDL. In addition, Pearson correlation analysis revealed that apoAI levels were positively and significantly correlated with all HDL subclasses. Multiple liner regression demonstrated that the apoAI concentrations were the most powerful predictor for HDL subclass distribution. With the elevation of apoAI concentrations, the contents of all HDL subclasses increased successively and significantly, especially, an increase in large-sized HDL(2b). Further, when apoAI and HDL-C concentrations increased simultaneously, the shift to larger HDL size was more obvious. Which, in turn, indicated that HDL maturation might be enhanced and, the reverse cholesterol transport might be strengthened along with apoAI levels which might be a more powerful factor influencing the distribution of HDL subclasses.
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Affiliation(s)
- Li Tian
- Laboratory of Endocrinology and Metabolism, West China Hospital, Sichuan University, New building 6, Room 902, #16 Section 3, People South Road, Chengdu, 610041, Sichuan, People's Republic of China
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Miida T. [Detection of qualitative abnormalities of HDL by measurement of prebeta1-HDL concentration]. Rinsho Byori 2006; 54:1241-6. [PMID: 17265898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Prebeta1-HDL is a native lipid-poor HDL that promotes cholesterol efflux from cell membranes. Prebeta1-HDL is a good substrate of lecithin-cholesterol acyltransferase (LCAT) and is converted into a-migrating spherical HDL by LCAT activity. Prebeta1-HDL is probably secreted from the liver and is also generated from a-HDL by several regulatory factors. At present, prebeta1-HDL concentration is determined by native two-dimensional gel electrophoresis, ultrafiltration-isotope dilution method, or immunoassay using monoclonal antibody. Plasma samples for immunoassay are pretreated with 50% sucrose, which stabilizes prebeta1-HDL during storage at -20 degrees C as well as at 4 degrees C. We determined the LCAT-dependent conversion rate of prebeta1-HDL to detect abnormal HDL metabolism. In this review, we discuss the physiological role of prebeta1 HDL and the clinical significance of plasma prebeta1-HDL concentration.
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Affiliation(s)
- Takashi Miida
- Division of Central Clinical Laboratory, Niigata University Medical and Dental Hospital, Niigata
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Zhang B, Miura SI, Fan P, Kumagai K, Takeuchi K, Uehara Y, McMahon M, Rye KA, Saku K. ApoA-I/phosphatidylcholine discs remodels fast-migrating HDL into slow-migrating HDL as characterized by capillary isotachophoresis. Atherosclerosis 2006; 188:95-101. [PMID: 16307746 DOI: 10.1016/j.atherosclerosis.2005.10.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2005] [Revised: 09/18/2005] [Accepted: 10/18/2005] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Capillary isotachophoresis (cITP) is a technique for characterizing plasma lipoprotein subfractions according to their electrophoretic charges. We used this technique to examine the mechanism by which apoA-I/phosphatidylcholine (POPC) discs increase pre-beta HDL. METHODS AND RESULTS The cITP analysis was performed using plasma prestained with a lipophilic dye on a Beckman P/ACE MDQ system. Plasma from a patient with lecithin:cholesterol acyltransferase (LCAT) deficiency who had increased apoE-containing HDL was used to characterize the charge distribution of apoA-I/POPC discs. cITP analysis of apoB- and E-depleted plasma of the patient in the presence of apoA-I/POPC discs indicated two major subfractions of apoA-I/POPC discs with mobilities of triglyceride-rich lipoproteins (fast and slow apoA-I). Incubation of whole plasma from a normolipidemic subject in the presence of apoA-I/POPC discs caused a reduction in cITP fast (f)- and intermediate (i)-migrating HDL, and fast and slow apoA-I, and an increase in slow (s)-migrating HDL. The changes in cITP lipoprotein subfractions were not affected by the inhibition of LCAT activity. ApoA-I/POPC discs increased the fractional esterification rate of cholesterol in apoB-depleted plasma. CONCLUSION ApoA-I/POPC discs remodeled cITP fHDL and iHDL to sHDL independent of LCAT activity.
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Affiliation(s)
- Bo Zhang
- Departments of Cardiology, Fukuoka University School of Medicine, 7-45-1 Nanakuma Jonan-ku, Fukuoka 814-0180, Japan
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