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Cheng Q, Sun J, Zhong H, Wang Z, Liu C, Zhou S, Deng J. Research trends in lipid-lowering therapies for coronary heart disease combined with hyperlipidemia: a bibliometric study and visual analysis. Front Pharmacol 2024; 15:1393333. [PMID: 38828451 PMCID: PMC11140088 DOI: 10.3389/fphar.2024.1393333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 05/03/2024] [Indexed: 06/05/2024] Open
Abstract
Background Cardiovascular disease (CVD) poses a significant global health and economic challenge, with atherosclerosis being a primary cause. Over the past 40 years, substantial research has been conducted into the prevention and reversal of atherosclerosis, resulting in the development of lipid-lowering agents such as statins and fibrates. Despite the extensive literature and formulation of numerous therapeutic guidelines in this domain, a comprehensive bibliometric analysis of the current research landscape and trends has not been performed. This study aimed to elucidate the evolution and milestones of research into lipid-lowering treatments for coronary heart disease (CHD) in conjunction with hyperlipidemia through bibliometric analysis, offering insights into future directions for treatment strategies. Methods This study examined publications from 1986 to 2023 retrieved from the Web of Science database (Core Collection). Utilizing tools such as VOSviewer, Pajek, and CiteSpace, we analyzed publication and citation numbers, H-indexes, contributions by countries and institutions, authorship, journal sources, and keyword usage to uncover research trajectories and areas of focus. Results Our analysis of 587 publications revealed a recent surge in research output, particularly post-2003. The American Journal of Cardiology published the highest number of studies, with 40 articles, whereas Circulation received the highest number of citations (6,266). Key contributors included the United States, Japan, and China, with the United States leading in citation numbers and the H-index. Harvard University and Leiden University emerged as pivotal institutions, and Professors J. Wouter Jukema and Robert P. Giugliano were identified as leading experts. Keyword analysis disclosed five thematic clusters, indicating a shift in research towards new drug combinations and strategies, signaling future research directions. Conclusion The last 4 decades have seen a notable rise in publications on lipid-lowering therapies for CHD and hyperlipidemia, with the United States retaining world-leading status. The increase in international collaboration aids the shift towards research into innovative lipid-lowering agents and therapeutic approaches. PCSK9 inhibitors and innovative combination therapies, including antisense oligonucleotides and angiopoietin-like protein 3 inhibitors, provide avenues for future research, intending to maximize the safety and efficacy of treatment approaches.
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Affiliation(s)
- Quankai Cheng
- Department of Cardiology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Jingjing Sun
- Department of Cardiology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Haicheng Zhong
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Ziming Wang
- Department of Cardiology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Chang Liu
- Department of Cardiology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Sheng Zhou
- Department of Cardiology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Jie Deng
- Department of Cardiology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
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Yadav S, Sawhney JPS. Treatment of dyslipidemia in acute coronary syndrome. Indian Heart J 2024; 76 Suppl 1:S51-S57. [PMID: 38307382 PMCID: PMC11019335 DOI: 10.1016/j.ihj.2024.01.011] [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: 11/04/2023] [Revised: 12/25/2023] [Accepted: 01/18/2024] [Indexed: 02/04/2024] Open
Abstract
Despite numerous improvements in the management of acute coronary syndrome(ACS), it is a major cause of mortality in India. Lipids play a critical role in pathogenesis of ACS and reduction of lipid parameters plays a pivotal role in secondary prevention. High total cholesterol and high low-density lipoprotein(LDL) are the major lipid abnormalities globally as well as in Indians. Among all the lipid parameters, LDL is the primary target of lipid-lowering therapies across the globe. High-dose statins, ezetimibe, proprotein convertase subtilisin/kexin type 9 inhibitors, and bempedoic acid are recommended therapies for LDL reduction in ACS patients. Statins have pleiotropic effects on the modulation of thrombogenesis, endothelial dysfunction, and myocardial protection. Multiple randomised controlled trials and meta-analyses have shown that the use of high-dose statin has significant benefits in ACS. LDL reduction goal is < 55 mg/dl or at least 50 % reduction from the baseline regardless of age or gender. Non-fasting LDL should be measured soon after the ACS as it varies minimally with food intake. The first line of therapy after ACS is to advise lifestyle modifications, combination therapy including high-dose statin with ezetimibe, and evaluation after 4-6 weeks of the index event. If the goal is not achieved then PCSK 9 inhibitors or Bempedoic acid should be used in combination with statins and ezetimibe to reduce recurrent ischaemic events. Despite the proven effect of these lipid-lowering therapies, undertreatment is still a big hurdle across the globe. Prohibitive costs, adverse effects, medication non-adherence, variation in health practice in different countries, and clinical inertia to prescribe this medication by physicians are the main reasons for the undertreatment.
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Role of Lipid-Lowering Therapy in Low-Density Lipoprotein Cholesterol Goal Attainment: Focus on Patients With Acute Coronary Syndrome. J Cardiovasc Pharmacol 2020; 76:658-670. [PMID: 33002965 PMCID: PMC7720869 DOI: 10.1097/fjc.0000000000000914] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Dyslipidemia is a major risk factor for cardiovascular (CV) disease, which is the leading cause of death globally. Acute coronary syndrome (ACS) is a common cause of death, accounting for nearly half of the global burden of CV mortality. Epidemiologic studies have identified low-density lipoprotein cholesterol (LDL-C) as an independent CV risk factor, and this is now the primary target for initiating and adjusting lipid-lowering therapies in most current guidelines. Evidence from pivotal studies supports the use of high-intensity statin therapy and a lower level for optimal LDL-C in secondary prevention of atherosclerotic CV disease, especially in patients with ACS undergoing percutaneous coronary intervention. However, current research has identified a gap between the target LDL-C goal attainment and target LDL-C levels recommended by the guidelines. Statins have proven benefits in the management of CV disease and are the cornerstone of lipid-lowering management in patients with ACS. Recent randomized controlled trials have also demonstrated the benefits of cholesterol absorption inhibitors and proprotein convertase subtilisin/kexin type 9 inhibitors. This review summarizes the current evidence for LDL-lowering therapy in patients with ACS, with an emphasis on the importance of LDL-C goal attainment, rapid LDL-C lowering, and duration of LDL-C–lowering therapy.
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Tran DT, Palfrey D, Lo TKT, Welsh R. Outcome and Cost of Optimal Control of Dyslipidemia in Adults With High Risk for Cardiovascular Disease. Can J Cardiol 2020; 37:66-76. [PMID: 32738207 DOI: 10.1016/j.cjca.2020.03.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 02/28/2020] [Accepted: 03/17/2020] [Indexed: 10/24/2022] Open
Abstract
BACKGROUND We assessed the impact of optimal dyslipidemia control on mortality and costs in adults at high risk for cardiovascular disease (HRCVD). METHODS We linked Alberta health databases to identify patients aged ≥ 18 years with HRCVD between April 2012 and March 2017. The first HRCVD event was considered the index event. Patients were categorized into (1) optimal control and (2) suboptimal control of dyslipidemia based on biomarkers and lipid-lowering therapy during the year post-index event. We measured the association between optimal dyslipidemia control and mortality and health care costs using difference-in-difference and propensity score-matching methods. RESULTS The study included 459,739 patients with HRCVD (43,776 [9.5%] optimal patients). The optimal patients were older (median age = 62 vs 55 years; P < 0.001), included fewer female patients (37.7% vs 52%; P < 0.001), and featured a higher proportion of secondary prevention patients (15.7% vs 1.7%; P < 0.001). Compared with suboptimal patients, the optimal patients had lower adjusted mortality (0.7% vs 1.9% at 1-year and 2.9% vs 5.1% at 3-year post-index event; both P < 0.001), and higher adjusted health care costs (CA$3758 and CA$6844 at 1-year and 3-year post-index event, respectively; both P < 0.001). Among the secondary prevention group, the optimal patients had lower adjusted mortality (2.4% and 5% absolute reduction at 1-year and 3-year post-index event, respectively; both P < 0.001) at no additional costs. The results were robust across 5 definitions of optimal dyslipidemia control. CONCLUSIONS Patients with optimal dyslipidemia control have lower mortality and incur modestly higher costs. However, secondary prevention patients experience lower mortality at no additional costs.
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Affiliation(s)
- Dat T Tran
- Institute of Health Economics, Edmonton, Alberta, Canada; Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada.
| | - Dan Palfrey
- Institute of Health Economics, Edmonton, Alberta, Canada
| | - T K T Lo
- Institute of Health Economics, Edmonton, Alberta, Canada
| | - Robert Welsh
- Faculty of Medicine, University of Alberta, Edmonton, Alberta, Canada
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Li JJ, Liu HH, Wu NQ, Yeo KK, Tan K, Ako J, Krittayaphong R, Tan RS, Aylward PE, Baek SH, Dalal J, Fong AYY, Li YH, O'Brien RC, Lim TSE, Koh SYN, Scherer DJ, Tada H, Kang V, Butters J, Nicholls SJ. Statin intolerance: an updated, narrative review mainly focusing on muscle adverse effects. Expert Opin Drug Metab Toxicol 2020; 16:837-851. [PMID: 32729743 DOI: 10.1080/17425255.2020.1802426] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
INTRODUCTION Statins have been established as the standard of care for dyslipidemia and preventing cardiovascular diseases while posing few safety concerns. However, misconceptions about statin intolerance lead to their underuse, indicating a need to improve the understanding of the safety of this treatment. AREAS COVERED We searched PubMed and reviewed literatures related to statin intolerance published between February 2015 and February 2020. Important large-scale or landmark studies published before 2015 were also cited as key evidence. EXPERT OPINION Optimal lowering of low-density lipoprotein cholesterol with statins substantially reduces the risk of cardiovascular events. Muscle adverse events (AEs) were the most frequently reported AEs by statin users in clinical practice, but they usually occurred at a similar rate with statins and placebo in randomized controlled trials and had a spurious causal relationship with statin treatment. We proposed a rigorous definition for identifying true statin intolerance and present the criteria for defining different forms of muscle AEs and an algorithm for their management. True statin intolerance is uncommon, and every effort should be made to exclude false statin intolerance and ensure optimal use of statins. For the management of statin intolerance, statin-based approaches should be prioritized over non-statin approaches.
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Affiliation(s)
- Jian-Jun Li
- State Key Laboratory of Cardiovascular Disease, FuWai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College , 100037, Beijing, China
| | - Hui-Hui Liu
- State Key Laboratory of Cardiovascular Disease, FuWai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College , 100037, Beijing, China
| | - Na-Qiong Wu
- State Key Laboratory of Cardiovascular Disease, FuWai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College , 100037, Beijing, China
| | - Khung Keong Yeo
- Department of Cardiology, National Heart Centre and SingHealth Duke-NUS Cardiovascular Sciences , Singapore
| | - Kathryn Tan
- Department of Medicine, University of Hong Kong , Hong Kong, China
| | - Junya Ako
- Department of Cardiovascular Medicine, Kitasato University , Sagamihara, Japan
| | - Rungroj Krittayaphong
- Division of Cardiology, Department of Medicine, Siriraj Hospital, Mahidol University , Bangkok, Thailand
| | - Ru San Tan
- Department of Cardiology, National Heart Centre and SingHealth Duke-NUS Cardiovascular Sciences , Singapore
| | - Philip E Aylward
- South Australian Health and Medical Research Institute and Flinders University , Adelaide, Australia
| | - Sang Hong Baek
- Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea , Seoul, Korea
| | - Jamshed Dalal
- Centre for Cardiac Sciences, Kokilaben Dhirubhai Ambani Hospital , Mumbai, India
| | - Alan Yean Yip Fong
- Department of Cardiology, Sarawak Heart Centre; and Clinical Research Centre, Sarawak General Hospital , Kuching, Malaysia
| | - Yi-Heng Li
- Division of Cardiology, Department of Internal Medicine, National Cheng Kung University College of Medicine and Hospital , Tainan, Taiwan
| | - Richard C O'Brien
- Department of Endocrinology, Austin Health, University of Melbourne , Melbourne, Australia
| | - Tien Siang Eric Lim
- Department of Cardiology, National Heart Centre and SingHealth Duke-NUS Cardiovascular Sciences , Singapore
| | - Si Ya Natalie Koh
- Department of Cardiology, National Heart Centre and SingHealth Duke-NUS Cardiovascular Sciences , Singapore
| | - Daniel J Scherer
- South Australian Health and Medical Research Institute, University of Adelaide , Adelaide, South Australia, Australia
| | - Hayato Tada
- Department of Cardiovascular and Internal Medicine, Kanazawa University Graduate School of Medicine , Kanazawa, Japan
| | | | - Julie Butters
- Monash Cardiovascular Research Centre, Victorian Heart Institute, Monash University , Melbourne, Australia
| | - Stephen J Nicholls
- Monash Cardiovascular Research Centre, Victorian Heart Institute, Monash University , Melbourne, Australia
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Reda A, Almahmeed W, Dobrecky-Mery I, Huang PH, Juarez-Herrera U, Ranjith N, Sayre T, Urina-Triana M. A Narrative Review and Expert Panel Recommendations on Dyslipidaemia Management After Acute Coronary Syndrome in Countries Outside Western Europe and North America. Adv Ther 2020; 37:1754-1777. [PMID: 32227306 PMCID: PMC7467479 DOI: 10.1007/s12325-020-01302-4] [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: 02/12/2020] [Indexed: 11/28/2022]
Abstract
Patients who have experienced an acute coronary syndrome (ACS) are at very high risk of recurrent atherosclerotic cardiovascular disease (CVD) events. Dyslipidaemia, a major risk factor for CVD, is poorly controlled post ACS in countries outside Western Europe and North America, despite the availability of effective lipid-modifying therapies (LMTs) and guidelines governing their use. Recent guideline updates recommend that low-density lipoprotein cholesterol (LDL-C), the primary target for dyslipidaemia therapy, be reduced by ≥ 50% and to < 1.4 mmol/L (55 mg/dL) in patients at very high risk of CVD, including those with ACS. The high prevalence of CVD risk factors in some regions outside Western Europe and North America confers a higher risk of CVD on patients in these countries. ACS onset is often earlier in these patients, and they may be more challenging to treat. Other barriers to effective dyslipidaemia control include low awareness of the value of intensive lipid lowering in patients with ACS, physician non-adherence to guideline recommendations, and lack of efficacy of currently used LMTs. Lack of appropriate pathways to guide follow-up of patients with ACS post discharge and poor access to intensive medications are important factors limiting dyslipidaemia therapy in many countries. Opportunities exist to improve attainment of LDL-C targets by the use of country-specific treatment algorithms to promote adherence to guideline recommendations, medical education and greater prioritisation by healthcare systems of dyslipidaemia management in very high risk patients. Video Abstract
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Affiliation(s)
- Ashraf Reda
- Department of Cardiology, Menoufia University, 127 Mohamed Fareed Street, Babellouk, Cairo, Egypt.
| | - Wael Almahmeed
- Department of Cardiovascular Medicine, Cleveland Clinic, Abu Dhabi, UAE
| | | | - Po-Hsun Huang
- Department of Critical Care Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | | | | | | | - Miguel Urina-Triana
- Cardiology Division, Faculty of Health Sciences, Simón Bolívar University, Barranquilla, Colombia
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Buddhari W, Uerojanaungkul P, Sriratanasathavorn C, Sukonthasarn A, Ambegaonkar B, Brudi P, Horack M, Lautsch D, Vyas A, Gitt AK. Low-Density Lipoprotein Cholesterol Target Attainment in Patients Surviving an Acute Coronary Syndrome in Thailand: Results From the Dyslipidaemia International Study (DYSIS) II. Heart Lung Circ 2020; 29:405-413. [DOI: 10.1016/j.hlc.2019.02.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 01/22/2019] [Accepted: 02/19/2019] [Indexed: 11/30/2022]
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Yang YS, Yang BR, Kim MS, Hwang Y, Choi SH. Low-density lipoprotein cholesterol goal attainment rates in high-risk patients with cardiovascular diseases and diabetes mellitus in Korea: a retrospective cohort study. Lipids Health Dis 2020; 19:5. [PMID: 31926562 PMCID: PMC6954559 DOI: 10.1186/s12944-019-1158-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 11/29/2019] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Real-world evidence of low-density lipoprotein cholesterol (LDL-C) goal attainment rates for Asian patients is deficient. The objective of this study was to assess the status of dyslipidemia management, especially in high-risk patients with cardiovascular disease (CVD) including stroke and acute coronary syndrome (ACS). METHODS This was a retrospective cohort study of 514,866 subjects from the National Health Insurance Service-National Health Screening Cohort database in Korea. Participants were followed up from 2002 to 2015. Subjects with a high-risk of CVD prior to LDL-C measurement and subjects who were newly-diagnosed for high-risk of CVD following LDL-C measurement were defined as known high-risk patients (n = 224,837) and newly defined high-risk patients (n = 127,559), respectively. Data were analyzed by disease status: stroke, ACS, coronary heart disease (CHD), peripheral artery disease (PAD), diabetes mellitus (DM) and atherosclerotic artery disease (AAD). RESULTS Overall, less than 50% of patients in each disease category achieved LDL-C goals (LDL-C < 70 mg/dL in patients with stroke, ACS, CHD and PAD; and LDL-C < 100 mg/dL in patients with DM and AAD). Statin use was observed in relatively low proportions of subjects (21.5% [known high-risk], 34.4% [newly defined high-risk]). LDL-C goal attainment from 2009 to 2015 steadily increased but the goal-achiever proportion of newly defined high-risk patients with ACS remained reasonably constant (38.7% in 2009; 38.1% in 2015). CONCLUSIONS LDL-C goal attainment rates in high-risk patients with CVD and DM in Korea demonstrate unmet medical needs. Proactive management is necessary to bridge the gap between the recommendations of clinical guidelines and actual clinical practice.
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Affiliation(s)
- Ye Seul Yang
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea
| | - Bo Ram Yang
- Medical Research Collaborating Center, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea
| | - Mi-Sook Kim
- Medical Research Collaborating Center, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea
- Department of Preventive Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea
| | - Yunji Hwang
- Amgen Korea, 19 Eulji-ro 5-gil, Jung-gu, Seoul, Republic of Korea
| | - Sung Hee Choi
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea.
- Department of Internal Medicine, Division of Endocrinology & Metabolism, Seoul National University Bundang Hospital, 82, Gumi-ro 173Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea.
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9
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Mert GÖ, Başaran Ö, Mert KU, Doğan V, Özlek B, Çelik O, Özlek E, Çil C, Özdemir İH, Rencüzoğulları İ, Karadeniz FÖ, Bekar L, Aktaş M, Resulzade MM, Kalçık M, Aksan G, Çinier G, Akay K, Pekel N, Şenol U, Biteker M, Kayıkçıoğlu M. The reasons of poor lipid target attainment for secondary prevention in real life practice: Results from EPHESUS. Int J Clin Pract 2019; 73:1-9. [PMID: 31038781 DOI: 10.1111/ijcp.13358] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 04/09/2019] [Accepted: 04/26/2019] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVE There are lack of studies considering the suboptimal management of dyslipidemia especially in cardiology outpatient clinics. This study was conducted to assess the patient adherence to cholesterol treatment recommendations and attainment of low-density-lipoprotein cholesterol (LDL-C) goals. METHODS EPHESUS (NCT02608645) is a national, observational and multicenter registry which has been designed as a cross-sectional study to allow inclusion of all consecutive patients with hypercholesterolemia in cardiology outpatient clinics. The present subgroup analyses of the EPHESUS trial included patients with known peripheral artery disease or atherosclerotic cerebrovascular disease, and coronary heart disease namely secondary prevention. RESULTS The present analysis of the EPHESUS study included 1482 patients (62.79 ± 10.4 years, 38.2% female) with secondary prevention from 40 sites in Turkey. Regarding recommended lipid targets for LDL-C, only 267 patients (18%) were below the target of 70 mg/dL. Females were significantly more off-target when compared with male patients (396, 85.5% vs 67, 14.5%; P = 0.017). Moreover, the achievement of LDL-C goal was significantly decreased with illiteracy (233, 19.2% vs 35, 13.1%; P = 0.02). Patients who think that the cholesterol treatment should be terminated when the cholesterol level of a patient has normalised were higher in the off-target group (34.0% vs 24.7%, P < 0.001). Besides, physician perceptions about LDL-C goal for secondary prevention were significantly related with LDL-C target attainment. CONCLUSIONS EPHESUS is an important study with large population in terms of representing real-life practice of the adherence to dyslipidemia guidelines in secondary prevention patients in Turkey. Perceptions, knowledge, and compliance with the guidelines for secondary prevention have increased, but it is far below from the desired levels even in cardiology outpatient clinics. There is a need for patients' and physicians' education regarding the treatment of hyperlipidemia.
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Affiliation(s)
- Gurbet Özge Mert
- Department of Cardiology, Eskişehir Yunus Emre State Hospital, Eskişehir, Turkey
| | - Özcan Başaran
- Department of Cardiology, Faculty of Medicine, Muğla Sıtkı Koçman University, Muğla, Turkey
| | - Kadir Uğur Mert
- Department of Cardiology, Faculty of Medicine, Eskişehir Osmangazi University, Eskişehir, Turkey
| | - Volkan Doğan
- Department of Cardiology, Faculty of Medicine, Muğla Sıtkı Koçman University, Muğla, Turkey
| | - Bülent Özlek
- Department of Cardiology, Faculty of Medicine, Muğla Sıtkı Koçman University, Muğla, Turkey
| | - Oğuzhan Çelik
- Department of Cardiology, Faculty of Medicine, Muğla Sıtkı Koçman University, Muğla, Turkey
| | - Eda Özlek
- Department of Cardiology, Faculty of Medicine, Muğla Sıtkı Koçman University, Muğla, Turkey
| | - Cem Çil
- Department of Cardiology, Faculty of Medicine, Muğla Sıtkı Koçman University, Muğla, Turkey
| | | | | | | | - Lütfü Bekar
- Department of Cardiology, Faculty of Medicine, Hitit University, Çorum, Turkey
| | - Müjdat Aktaş
- Department of Cardiology, Faculty of Medicine Regional Training and Research Hospital, Kocaeli University, Kocaeli, Turkey
| | | | - Macit Kalçık
- Department of Cardiology, Faculty of Medicine, Hitit University, Çorum, Turkey
| | - Gökhan Aksan
- Department of Cardiology, Sıslı Hamıdıye Etfal Research and Training Hospital, İstanbul, Turkey
| | - Göksel Çinier
- Department of Cardiology, Dr. Siyami Ersek Thoracic and Cardiovascular Surgery Center, İstanbul, Turkey
| | - Kadriye Akay
- Department of Cardiology, Kocaeli State Hospital, Kocaeli, Turkey
| | - Nihat Pekel
- Department of Cardiology, Tekden Private Hospital, Denizli, Turkey
| | - Utku Şenol
- Department of Cardiology, Eskisehir Acıbadem Hospital, Eskişehir, Turkey
| | - Murat Biteker
- Department of Cardiology, Faculty of Medicine, Muğla Sıtkı Koçman University, Muğla, Turkey
| | - Meral Kayıkçıoğlu
- Department of Cardiology, Ege University Faculty of Medicine, İzmir, Turkey
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OxHDL controls LOX-1 expression and plasma membrane localization through a mechanism dependent on NOX/ROS/NF-κB pathway on endothelial cells. J Transl Med 2019; 99:421-437. [PMID: 30664710 DOI: 10.1038/s41374-018-0151-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 10/17/2018] [Accepted: 10/19/2018] [Indexed: 12/20/2022] Open
Abstract
Systemic inflammatory diseases enhance circulating oxidative stress levels, which results in the oxidation of circulating high-density lipoprotein (oxHDL). Endothelial cell function can be negatively impacted by oxHDL, but the underlying mechanisms for this remain unclear. Some reports indicate that the lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1) is also a receptor for oxHDL. However, it is unknown if oxHDL induces increased LOX-1 expression at the plasma membrane, as an event that supports endothelial dysfunction. Therefore, the aims of this study were to determine if oxHDL induces plasma-membrane level changes in LOX-1 and, if so, to describe the underlying mechanisms in endothelial cells. Our results demonstrate that the incubation of arterial or vein endothelial cells with oxHDL (and not HDL) induces the increase of LOX-1 expression at the plasma membrane; effect prevented by LOX-1 inhibition. Importantly, same results were observed in endothelial cells from oxHDL-treated rats. Furthermore, the observed oxHDL-induced LOX-1 expression is abolished by the down-regulation of NOX-2 expression with siRNA (and no others NOX isoforms), by the pharmacological inhibition of NAD(P)H oxidase (with DPI or apocynin) or by the inhibition of NF-κB transcription factor. Coherently, LOX-1 expression is augmented by the incubation of endothelial cells with H2O2 or GSSG even in absence of oxHDL, indicating that the NOX-2/ROS/ NF-κB axis is involved. Interestingly, oxHDL incubation also increases TNF-α expression, cytokine that induces LOX-1 expression. Thus, our results suggest a positive feedback mechanism for LOX-1 receptor during inflammatory condition where an oxidative burst will generate oxHDL from native HDL, activating LOX-1 receptor which in turn will increase the expression of NOX-2, TNF-α and LOX-1 receptor at the plasma membrane. In conclusion, oxHDL-induced translocation of LOX-1 to the plasma membrane could constitute an induction mechanism of endothelial dysfunction in systemic inflammatory diseases.
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