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Son Y, Yeo IJ, Hong JT, Eo SK, Lee D, Kim K. Side-Chain Immune Oxysterols Induce Neuroinflammation by Activating Microglia. Int J Mol Sci 2023; 24:15288. [PMID: 37894967 PMCID: PMC10607006 DOI: 10.3390/ijms242015288] [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: 09/18/2023] [Revised: 10/17/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
In individuals with Alzheimer's disease, the brain exhibits elevated levels of IL-1β and oxygenated cholesterol molecules (oxysterols). This study aimed to investigate the effects of side-chain oxysterols on IL-1β expression using HMC3 microglial cells and ApoE-deficient mice. Treatment of HMC3 cells with 25-hydroxycholesterol (25OHChol) and 27-hydroxycholesterol (27OHChol) led to increased IL-1β expression at the transcript and protein levels. Additionally, these oxysterols upregulated the surface expression of MHC II, a marker of activated microglia. Immunohistochemistry performed on the mice showed increased microglial expression of IL-1β and MHC II when fed a high-cholesterol diet. However, cholesterol and 24s-hydroxycholesterol did not increase IL-1β transcript levels or MHC II expression. The extent of IL-1β increase induced by 25OHChol and 27OHChol was comparable to that caused by oligomeric β-amyloid, and the IL-1β expression induced by the oxysterols was not impaired by polymyxin B, which inhibited lipopolysaccharide-induced IL-1β expression. Both oxysterols enhanced the phosphorylation of Akt, ERK, and Src, and inhibition of these kinase pathways with pharmacological inhibitors suppressed the expression of IL-1β and MHC II. The pharmacological agents chlorpromazine and cyclosporin A also impaired the oxysterol-induced expression of IL-1β and upregulation of MHC II. Overall, these findings suggest that dysregulated cholesterol metabolism leading to elevated levels of side-chain oxysterols, such as 25OHChol and 27OHChol, can activate microglia to secrete IL-1β through a mechanism amenable to pharmacologic intervention. The activation of microglia and subsequent neuroinflammation elicited by the immune oxysterols can contribute to the development of neurodegenerative diseases.
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Affiliation(s)
- Yonghae Son
- Department of Pharmacology, School of Medicine, Pusan National University, Yangsan 50612, Gyeongnam, Republic of Korea;
| | - In-Jun Yeo
- College of Pharmacy, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Gyeongbuk, Republic of Korea;
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osong-eup, Heungdeok-gu, Cheongju 28160, Chungbuk, Republic of Korea;
| | - Jin-Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osong-eup, Heungdeok-gu, Cheongju 28160, Chungbuk, Republic of Korea;
| | - Seong-Kug Eo
- College of Veterinary Medicine and Bio-Safety Research Institute, Jeonbuk National University, Iksan 54596, Jeonbuk, Republic of Korea;
| | - Dongjun Lee
- Department of Convergence Medicine, School of Medicine, Pusan National University, Yangsan 50612, Gyeongnam, Republic of Korea
| | - Koanhoi Kim
- Department of Pharmacology, School of Medicine, Pusan National University, Yangsan 50612, Gyeongnam, Republic of Korea;
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The emerging role of 27-hydroxycholesterol in cancer development and progression: An update. Int Immunopharmacol 2022; 110:109074. [DOI: 10.1016/j.intimp.2022.109074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 07/09/2022] [Accepted: 07/17/2022] [Indexed: 02/07/2023]
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Wu Y, Wang Y, Long L, Hu C, Kong Q, Wang Y. A spatiotemporal release platform based on pH/ROS stimuli-responsive hydrogel in wound repairing. J Control Release 2021; 341:147-165. [PMID: 34813880 DOI: 10.1016/j.jconrel.2021.11.027] [Citation(s) in RCA: 102] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/25/2021] [Accepted: 11/17/2021] [Indexed: 02/08/2023]
Abstract
Fabricating injectable hydrogel with multifunctions that matchs the highly ordered healing process of skin regeneration has greatly desired in treatment of chronic diabetic wounds. Herein, a pH/reactive oxygen species (ROS) dual responsive injectable glycopeptide hydrogel based on phenylboronic acid-grafted oxidized dextran and caffeic acid-grafted ε-polylysine was constructed, which exhibited inherent antibacterial and antioxidant capacities. The mangiferin (MF) with the ability to promote angiogenesis was encapsulated into pH-responsive micelles (MIC). Subsequently, diclofenac sodium (DS) with anti-inflammatory activities and MIC@MF were embedded into the hydrogel. The hydrogel possessed good biodegradability, stable rheological property and self-healing ability, and could realize the spatiotemporal delivery of DS and MF. The in vitro and in vivo data showed that the hydrogel was biocompatible with effective anti-infection, anti-oxidation and anti-inflammation at early stages, then further promoted angiogenesis and accelerated wound repairing. Collectively, this novel glycopeptide hydrogel provides a facile and effective strategy for chronic diabetic wound repairing.
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Affiliation(s)
- Ye Wu
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yu Wang
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Linyu Long
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China
| | - Cheng Hu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China.
| | - Qingquan Kong
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China; Joint Research Institute of Altitude Health, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China
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Aslani M, Ahmadzadeh A, Aghazadeh Z, Zaki-Dizaji M, Sharifi L, Hosseini M, Mirshafiey A. Influence of β-D-mannuronic Acid, as a New Member of Non-steroidal Anti- Inflammatory Drugs Family, on the Expression Pattern of Chemokines and their Receptors in Rheumatoid Arthritis. Curr Drug Discov Technol 2021; 18:65-74. [PMID: 31657689 DOI: 10.2174/1570163816666191023103118] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 07/15/2019] [Accepted: 08/28/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Based on the encouraging results of phase III clinical trial of β-Dmannuronic acid (M2000) (as a new anti-inflammatory drug) in patients with RA, in this study, we aimed to evaluate the effects of this drug on the expression of chemokines and their receptors in PBMCs of RA patients. METHODS PBMCs of RA patients and healthy controls were separated and the patients' cells were treated with low, moderate and high doses (5, 25 and 50 μg/mL) of M2000 and optimum dose (1 μg/mL) of diclofenac, as a control in RPMI-1640 medium. Real-time PCR was used for evaluating the mRNA expression of CXCR3, CXCR4, CCR2, CCR5 and CCL2/MCP-1. Cell surface expression of CCR2 was investigated using flow cytometry. RESULTS CCR5 mRNA expression reduced significantly, after treatment of the patients' cells with all three doses of M2000 and optimum dose of diclofenac. CXCR3 mRNA expression was downregulated significantly followed by the treatment of these cells with moderate and high doses of M2000 and optimum dose of diclofenac. CXCR4 mRNA expression declined significantly after the treatment of these cells with moderate and high doses of M2000. CCL2 mRNA expression significantly reduced only followed by the treatment of these cells with a high dose of M2000, whereas, mRNA and cell surface expressions of CCR2 diminished significantly followed by the treatment of these cells with a high dose of M2000 and optimum dose of diclofenac. CONCLUSION According to our results, M2000 through the down-regulation of chemokines and their receptors may restrict the infiltration of immune cells into the synovium.
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Affiliation(s)
- Mona Aslani
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Arman Ahmadzadeh
- Department of Rheumatology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Aghazadeh
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Majid Zaki-Dizaji
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Laleh Sharifi
- Uro-Oncology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Hosseini
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Mirshafiey
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Houben T, Bitorina AV, Oligschlaeger Y, Jeurissen ML, Rensen S, Köhler SE, Westerterp M, Lütjohann D, Theys J, Romano A, Plat J, Shiri-Sverdlov R. Sex-opposed inflammatory effects of 27-hydroxycholesterol are mediated via differences in estrogen signaling. J Pathol 2020; 251:429-439. [PMID: 32472585 PMCID: PMC7497011 DOI: 10.1002/path.5477] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 04/28/2020] [Accepted: 05/19/2020] [Indexed: 02/06/2023]
Abstract
Despite the increased awareness of differences in the inflammatory response between men and women, only limited research has focused on the biological factors underlying these sex differences. The cholesterol derivative 27‐hydroxycholesterol (27HC) has been shown to have opposite inflammatory effects in independent experiments using mouse models of atherosclerosis and non‐alcoholic steatohepatitis (NASH), pathologies characterized by cholesterol‐induced inflammation. As the sex of mice in these in vivo models differed, we hypothesized that 27HC exerts opposite inflammatory effects in males compared to females. To explore whether the sex‐opposed inflammatory effects of 27HC translated to humans, plasma 27HC levels were measured and correlated with hepatic inflammatory parameters in obese individuals. To investigate whether 27HC exerts sex‐opposed effects on inflammation, we injected 27HC into female and male Niemann–Pick disease type C1 mice (Npc1nih) that were used as an extreme model of cholesterol‐induced inflammation. Finally, the involvement of estrogen signaling in this mechanism was studied in bone marrow‐derived macrophages (BMDMs) that were treated with 27HC and 17β‐estradiol (E2). Plasma 27HC levels showed opposite correlations with hepatic inflammatory indicators between female and male obese individuals. Likewise, hepatic 27HC levels oppositely correlated between female and male Npc1nih mice. Twenty‐seven hydroxycholesterol injections reduced hepatic inflammation in female Npc1nih mice in contrast to male Npc1nih mice, which showed increased hepatic inflammation after 27HC injections. Furthermore, 27HC administration also oppositely affected inflammation in female and male BMDMs cultured in E2‐enriched medium. Remarkably, female BMDMs showed higher ERα expression compared to male BMDMs. Our findings identify that the sex‐opposed inflammatory effects of 27HC are E2‐dependent and are potentially related to differences in ERα expression between females and males. Hence, the individual’s sex needs to be taken into account when 27HC is employed as a therapeutic tool as well as in macrophage estrogen research in general. © 2020 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Tom Houben
- Department of Molecular Genetics, School of Nutrition & Translational Research Maastricht (NUTRIM), Maastricht University, Maastricht, The Netherlands
| | - Albert V Bitorina
- Department of Molecular Genetics, School of Nutrition & Translational Research Maastricht (NUTRIM), Maastricht University, Maastricht, The Netherlands
| | - Yvonne Oligschlaeger
- Department of Molecular Genetics, School of Nutrition & Translational Research Maastricht (NUTRIM), Maastricht University, Maastricht, The Netherlands
| | - Mike Lj Jeurissen
- Department of Molecular Genetics, School of Nutrition & Translational Research Maastricht (NUTRIM), Maastricht University, Maastricht, The Netherlands
| | - Sander Rensen
- Department of Surgery, School of Nutrition & Translational Research Maastricht (NUTRIM), Maastricht University, Maastricht, The Netherlands
| | - S Eleonore Köhler
- Department of Anatomy & Embryology, School of Nutrition & Translational Research Maastricht (NUTRIM), Maastricht University, Maastricht, The Netherlands
| | - Marit Westerterp
- Department of Pediatrics, Section Molecular Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Dieter Lütjohann
- Institute of Clinical Chemistry and Clinical Pharmacology, University of Bonn, Bonn, Germany
| | - Jan Theys
- Department of Precision Medicine, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - Andrea Romano
- Department of Obstetrics & Gynaecology, School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - Jogchum Plat
- Department of Nutrition and Movement Sciences, School of Nutrition & Translational Research Maastricht (NUTRIM), Maastricht University, Maastricht, The Netherlands
| | - Ronit Shiri-Sverdlov
- Department of Molecular Genetics, School of Nutrition & Translational Research Maastricht (NUTRIM), Maastricht University, Maastricht, The Netherlands
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Pandak WM, Kakiyama G. The acidic pathway of bile acid synthesis: Not just an alternative pathway ☆. LIVER RESEARCH 2019; 3:88-98. [PMID: 32015930 PMCID: PMC6996149 DOI: 10.1016/j.livres.2019.05.001] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Over the last two decades, the prevalence of obesity, and metabolic syndromes (MS) such as non-alcoholic fatty liver disease (NAFLD) and type 2 diabetes mellitus (T2DM), have dramatically increased. Bile acids play a major role in the digestion, absorption of nutrients, and the body's redistribution of absorbed lipids as a function of their chemistry and signaling properties. As a result, a renewed interest has developed in the bile acid metabolic pathways with the challenge of gaining insight into novel treatment approaches for this rapidly growing healthcare problem. Of the two major pathways of bile acid synthesis in the liver, the foremost role of the acidic (alternative) pathway is to generate and control the levels of regulatory oxysterols that help control cellular cholesterol and lipid homeostasis. Cholesterol transport to mitochondrial sterol 27-hydroxylase (CYP27A1) by steroidogenic acute regulatory protein (StarD1), and the subsequent 7α-hydroxylation of oxysterols by oxysterol 7α-hydroxylase (CYP7B1) are the key regulatory steps of the pathway. Recent observations suggest CYP7B1 to be the ultimate controller of cellular oxysterol levels. This review discusses the acidic pathway and its contribution to lipid, cholesterol, carbohydrate, and energy homeostasis. Additionally, discussed is how the acidic pathway's dysregulation not only leads to a loss in its ability to control cellular cholesterol and lipid homeostasis, but leads to inflammatory conditions.
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Affiliation(s)
- William M. Pandak
- Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA,Department of Veterans Affairs, Richmond, VA, USA
| | - Genta Kakiyama
- Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA,Department of Veterans Affairs, Richmond, VA, USA,Corresponding author. Department of Internal Medicine, Virginia Commonwealth University and Department of Veterans Affairs, Richmond, VA, USA. (G. Kakiyama)
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Gargiulo S, Rossin D, Testa G, Gamba P, Staurenghi E, Biasi F, Poli G, Leonarduzzi G. Up-regulation of COX-2 and mPGES-1 by 27-hydroxycholesterol and 4-hydroxynonenal: A crucial role in atherosclerotic plaque instability. Free Radic Biol Med 2018; 129:354-363. [PMID: 30312760 DOI: 10.1016/j.freeradbiomed.2018.09.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 09/26/2018] [Accepted: 09/29/2018] [Indexed: 12/12/2022]
Abstract
Atherosclerosis is currently understood to be mainly the consequence of a complicated inflammatory process at the different stages of plaque development. Among the several inflammatory molecules involved, up-regulation of the functional cyclooxygenase 2/membrane-bound prostaglandin E synthase 1 (COX-2/mPGES-1) axis plays a key role in plaque development. Excessive production of oxidized lipids, following low-density lipoprotein (LDL) oxidation, is a characteristic feature of atherosclerosis. Among the oxidized lipids of LDLs, the oxysterol 27-hydroxycholesterol (27-OH) and the aldehyde 4-hydroxynonenal (HNE) substantially accumulate in the atherosclerotic plaque, contributing to its progression and instability through a variety of processes. This study shows that 27-OH and HNE promote up-regulation of both the inducible enzymes COX-2 and mPGES-1, leading to increased production of prostaglandin (PG) E2 and inducible nitric oxide synthase, and the subsequent release of nitric oxide in human promonocytic U937 cells. The study also examined the potential involvement of the functionally coupled COX-2/mPGES-1 in enhancing the production of certain pro-inflammatory cytokines and of matrix metalloproteinase 9 by U937 cells. This enhancement is presumably due to the induction of PGE2 synthesis, as a result of the up-regulation of the COX-2/mPGES-1, stimulated by the two oxidized lipids, 27-OH and HNE. Induction of PGE2 synthesis might thus be a mechanism of plaque instability and eventual rupture, contributing to matrix metalloproteinase production by activated macrophages.
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Affiliation(s)
- Simona Gargiulo
- Department of Clinical and Biological Sciences, School of Medicine, University of Turin, Orbassano, Torino, Italy
| | - Daniela Rossin
- Department of Clinical and Biological Sciences, School of Medicine, University of Turin, Orbassano, Torino, Italy
| | - Gabriella Testa
- Department of Clinical and Biological Sciences, School of Medicine, University of Turin, Orbassano, Torino, Italy
| | - Paola Gamba
- Department of Clinical and Biological Sciences, School of Medicine, University of Turin, Orbassano, Torino, Italy
| | - Erica Staurenghi
- Department of Clinical and Biological Sciences, School of Medicine, University of Turin, Orbassano, Torino, Italy
| | - Fiorella Biasi
- Department of Clinical and Biological Sciences, School of Medicine, University of Turin, Orbassano, Torino, Italy
| | - Giuseppe Poli
- Department of Clinical and Biological Sciences, School of Medicine, University of Turin, Orbassano, Torino, Italy
| | - Gabriella Leonarduzzi
- Department of Clinical and Biological Sciences, School of Medicine, University of Turin, Orbassano, Torino, Italy.
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Zhu X, Tu Y, Chen H, Jackson AO, Patel V, Yin K. Micro-environment and intracellular metabolism modulation of adipose tissue macrophage polarization in relation to chronic inflammatory diseases. Diabetes Metab Res Rev 2018; 34:e2993. [PMID: 29475214 DOI: 10.1002/dmrr.2993] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 02/08/2018] [Accepted: 02/11/2018] [Indexed: 12/13/2022]
Abstract
The accumulation and pro-inflammatory polarization of immune cells, mainly macrophages, in adipose tissue (AT) are considered crucial factors for obesity-induced chronic inflammatory diseases. In this review, we highlighted the role of adipose tissue macrophage (ATM) polarization on AT function in the obese state and the effect of the micro-environment and intracellular metabolism on the dynamic switch of ATMs into their pro-inflammatory or anti-inflammatory phenotypes, which may have distinct influences on obesity-related chronic inflammatory diseases. Obesity-associated metabolic dysfunctions, including those of glucose, fatty acid, cholesterol, and other nutrient substrates such as vitamin D and iron in AT, promote the pro-inflammatory polarization of ATMs and AT inflammation via regulating the interaction between ATMs and adipocytes and intracellular metabolic pathways, including glycolysis, fatty acid oxidation, and reverse cholesterol transportation. Focusing on the regulation of ATM metabolism will provide a novel target for the treatment of obesity-related chronic inflammatory diseases, including insulin resistance, cardiovascular diseases, and cancers.
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Affiliation(s)
- Xiao Zhu
- Research Laboratory of Translational Medicine, Medical School, University of South China, Hengyang, China
- Institute of Cardiovascular Disease, Key Laboratory for Atherosclerology of Hunan Province, University of South China, Hengyang, China
| | - Yixuan Tu
- Research Laboratory of Translational Medicine, Medical School, University of South China, Hengyang, China
| | - Hainan Chen
- Research Laboratory of Translational Medicine, Medical School, University of South China, Hengyang, China
- Institute of Cardiovascular Disease, Key Laboratory for Atherosclerology of Hunan Province, University of South China, Hengyang, China
| | - Ampadu O Jackson
- Research Laboratory of Translational Medicine, Medical School, University of South China, Hengyang, China
| | - Vaibhav Patel
- Department of Physiology and Pharmacology, Cumming School of Medicine, Libin Cardiovascular Institute of Alberta, University of Calgary, Calgary, AB, Canada
| | - Kai Yin
- Research Laboratory of Translational Medicine, Medical School, University of South China, Hengyang, China
- Institute of Cardiovascular Disease, Key Laboratory for Atherosclerology of Hunan Province, University of South China, Hengyang, China
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