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Maklakova SY, Lopukhov AV, Khudyakov AD, Kovalev SV, Mazhuga MP, Chepikova OE, Zamyatnin AA, Majouga AG, Klyachko NL, Beloglazkina EK. Design and synthesis of atorvastatin derivatives with enhanced water solubility, hepatoselectivity and stability. RSC Med Chem 2023; 14:56-64. [PMID: 36760736 PMCID: PMC9890652 DOI: 10.1039/d2md00119e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 10/10/2022] [Indexed: 11/05/2022] Open
Abstract
Statins are effective 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMG-R) inhibitors, which are successfully used for cardiovascular disease treatment. Statins' side effects are generally attributed to poor bioavailability and hepatoselectivity, which are closely related to their high lipophilicity. Targeted delivery of statins to the liver is considered as a way to reduce unwanted side effects. Herein we report on synthesis and evaluation of atorvastatin conjugates targeting the galactose-specific hepatic asialoglycoprotein receptor (ASGPR). The prepared conjugates showed greater water solubility compared to unmodified atorvastatin. The synthesised compounds demonstrated potent binding to the ASGPR with submicromolar K D values. The conjugates with an amide bond connecting atorvastatin and the targeting moiety displayed the optimal stability under model conditions, as they underwent hydrolysis only when incubated with the intracellular protease. The hydrolysis products effectively inhibited HMG-R activity. The results suggest that the designed amide-based compounds have the potential to be further developed as orally administered prodrugs of atorvastatin.
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Affiliation(s)
- Svetlana Yu Maklakova
- Chemistry Department, Lomonosov Moscow State University GSP-1, Leninskie Gory 1/3 Moscow 119991 Russian Federation
| | - Anton V Lopukhov
- Chemistry Department, Lomonosov Moscow State University GSP-1, Leninskie Gory 1/3 Moscow 119991 Russian Federation
| | - Alexandr D Khudyakov
- Chemistry Department, Lomonosov Moscow State University GSP-1, Leninskie Gory 1/3 Moscow 119991 Russian Federation
| | - Sergey V Kovalev
- Chemistry Department, Lomonosov Moscow State University GSP-1, Leninskie Gory 1/3 Moscow 119991 Russian Federation
| | - Maria P Mazhuga
- Chemistry Department, Lomonosov Moscow State University GSP-1, Leninskie Gory 1/3 Moscow 119991 Russian Federation
| | - Olga E Chepikova
- Department of Biotechnology, Sirius University of Science and Technology Olympic Avenue 1 Sochi 354340 Russian Federation
| | - Andrey A Zamyatnin
- Department of Biotechnology, Sirius University of Science and Technology Olympic Avenue 1 Sochi 354340 Russian Federation
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University Trubetskaya Street 8/2 Moscow 119991 Russian Federation
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University GSP-1, Leninskie Gory Moscow 119992 Russian Federation
- Faculty of Health and Medical Sciences, University of Surrey Guildford GU2 7XH UK
| | - Alexander G Majouga
- Chemistry Department, Lomonosov Moscow State University GSP-1, Leninskie Gory 1/3 Moscow 119991 Russian Federation
- Dmitry Mendeleev University of Chemical Technology of Russia Miusskaya Square 9 Moscow 125047 Russian Federation
| | - Natalia L Klyachko
- Chemistry Department, Lomonosov Moscow State University GSP-1, Leninskie Gory 1/3 Moscow 119991 Russian Federation
| | - Elena K Beloglazkina
- Chemistry Department, Lomonosov Moscow State University GSP-1, Leninskie Gory 1/3 Moscow 119991 Russian Federation
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Gao J, Yang YN, Cui Z, Feng SY, Ma J, Li CP, Liu Y. Pcsk9 is associated with severity of coronary artery lesions in male patients with premature myocardial infarction. Lipids Health Dis 2021; 20:56. [PMID: 34044829 PMCID: PMC8161665 DOI: 10.1186/s12944-021-01478-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/06/2021] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Proprotein convertase subtilisin/kexin type 9 (Pcsk9) correlated with incidence and prognosis of coronary heart disease. However, it is unclear whether Pcsk9 contributed to coronary artery lesion severity in patients with premature myocardial infarction (PMI). The present study investigated associations between Pcsk9 and coronary artery lesion severity in PMI patients who underwent coronary angiography (CAG). METHODS This prospective cohort study included young men (age ≤ 45 years, n = 332) with acute MI who underwent CAG between January 2017 and July 2019. Serum Pcsk9 levels and clinical characteristics were evaluated. SYNTAX scores (SYNergy between percutaneous coronary intervention with [paclitaxel-eluting] TAXUS stent and cardiac surgery) were calculated to quantify coronary artery lesions. RESULTS Serum Pcsk9 levels were positively associated with SYNTAX scores (r = 0.173, P < 0.05). The diagnostic cutoff value of PSCK9 level was 122.9 ng/mL, yielding an area under the curve (AUC) of 0.63, sensitivity 81%, and specificity 40%. Serum Pcsk9, LDL-C, Apob, NT-proBnp, CK level, and diabetes history were independent predictors of high SYNTAX scores (P < 0.05). After stratifying by serum LDL-C level (cutoff = 2.6 mmol/L), medium-high Pcsk9 levels had increased risk of high SYNTAX scores in patients with high LDL-C (P < 0.05), and higher serum Pcsk9 levels had increased risk of major adverse cardiac events (MACE) after adjusting for confounding factors (P < 0.05). CONCLUSION Serum Pcsk9 levels correlates with severity of coronary artery lesion in PMI patients and may serve as a biomarker for severity of coronary artery stenosis in this patient population, which may contribute to risk stratification.
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Affiliation(s)
- Jing Gao
- Chest Hospital, Tianjin University, No.92 Weijin Road Nankai District, Tianjin, 300072, P.R. China
- Thoracic Clinical College, Tianjin Medical University, No.22 Qi xiang tai Road, Heping District, Tianjin, 300070, P.R. China
- Cardiovascular Institute, Tianjin Chest Hospital, No.261 Tai erzhuang Road, Jinnan District, Tianjin, 300222, P.R. China
| | - Ya-Nan Yang
- Tianjin Medical University, No.22 Qi xiangtai Road, Heping District, Tianjin, 300070, P.R. China
| | - Zhuang Cui
- Tianjin Medical University, No.22 Qi xiangtai Road, Heping District, Tianjin, 300070, P.R. China
| | - Si-Yuan Feng
- Tianjin Medical University, No.22 Qi xiangtai Road, Heping District, Tianjin, 300070, P.R. China
| | - Jing Ma
- Cardiovascular Institute, Tianjin Chest Hospital, No.261 Tai erzhuang Road, Jinnan District, Tianjin, 300222, P.R. China
| | - Chang-Ping Li
- Tianjin Medical University, No.22 Qi xiangtai Road, Heping District, Tianjin, 300070, P.R. China.
| | - Yin Liu
- Thoracic Clinical College, Tianjin Medical University, No.22 Qi xiang tai Road, Heping District, Tianjin, 300070, P.R. China.
- Department of Cardiology, Tianjin Chest Hospital, No.261 Tai erzhuang Road, Jinnan District, Tianjin, 300222, P.R. China.
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Wu Q, Zhong X, Fu M, Yang H, Bo H, Liao X, Hu Z, Wang B, Zhang Z, Jin X, Kang Y. High-density lipoprotein cholesterol to low-density lipoprotein cholesterol ratio in early assessment of disease severity and outcome in patients with acute pancreatitis admitted to the ICU. BMC Gastroenterol 2020; 20:164. [PMID: 32460705 PMCID: PMC7254649 DOI: 10.1186/s12876-020-01315-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 05/22/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Patients with acute pancreatitis usually exhibit dyslipidemia and oxidative stress. However, the significance of high-density lipoprotein cholesterol (HDL-C) level, low-density lipoprotein cholesterol (LDL-C) level and the HDL-C/LDL-C ratio (H/L ratio) as markers for disease progression remain unknown. AIM The aim of this study was to evaluate the role of HDL-C levels, LDL-C levels and the H/L ratio as markers of disease progression in patients admitted to the intensive cate unit with acute pancreatitis. METHODS This retrospective study was conducted at a tertiary critical care center in China. Plasma HDL-C and LDL-C levels were measured in 166 patients with acute pancreatitis. The associations between HDL-C, LDL-C, H/L ratio, as well as other inflammatory index and mortality, were analyzed. Multivariate cox analysis based on two models was used to determine the independent prognostic factor. Predictive ability of in-hospital mortality for variables was determined using the receiver operating characteristics curves. RESULTS Significantly higher H/L ratios at admission were observed in patients with acute pancreatitis who died compared with survivors (0.93 vs. 0.64, p < 0.001). The area under the ROC curve for H/L ratio-based prediction of mortality was 0.658. When clinical confounders were included in multivariable cox regression analysis, the association was preserved (Model A HR = 1.587, p = 0.011; Model B HR = 1.332, p = 0.032). The mortality risk in different groups defined by an H/L ratio cutoff value was significantly different, based on survival curve analysis. CONCLUSION The H/L ratio at the time of admission to the ICU appears to be a biomarker of disease progression in patients with acute pancreatitis.
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Affiliation(s)
- Qin Wu
- Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Xi Zhong
- Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Min Fu
- Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Hao Yang
- Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Hong Bo
- Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Xuelian Liao
- Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Zhi Hu
- Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Bo Wang
- Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Zhongwei Zhang
- Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaodong Jin
- Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yan Kang
- Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China.
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Ellis KL, Chakraborty A, Moses EK, Watts GF. To test, or not to test: that is the question for the future of lipoprotein(a). Expert Rev Cardiovasc Ther 2019; 17:241-250. [PMID: 30916582 DOI: 10.1080/14779072.2019.1596799] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
INTRODUCTION Lipoprotein(a) [Lp(a)] is a potent, highly heritable and common risk factor for atherosclerotic cardiovascular disease (ASCVD). Evidence for a causal association between elevated Lp(a) and ASCVD has been provided by large epidemiological investigations that have demonstrated a curvilinear association with increased risk, as well as from genetic examinations and cellular and transgenic animal studies. Although there are several therapies available for lowering Lp(a), none are selective for Lp(a) and there is no clinical trial data that has specifically shown that lowering Lp(a) reduces the risk of ASCVD. Hence, screening for elevated Lp(a) is not routinely incorporated into clinical practice. Areas covered: This paper reviews the current evidence supporting the causal role of Lp(a) in the primary and secondary prevention of ASCVD, screening approaches for high Lp(a), current guidelines on testing Lp(a), and barriers to the routine screening of elevated Lp(a) in clinical practice. Expert opinion: At present, there is a moderate level of evidence supporting the routine screening of elevated Lp(a). Current guidelines recommend testing for elevated Lp(a) in individuals at intermediate or high risk of ASCVD.
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Affiliation(s)
- Katrina L Ellis
- a Centre for Genetic Origins of Health and Disease, School of Biomedical Sciences, The University of Western Australia and School of Biomedical Sciences , Curtin University , Perth , Australia.,b School of Medicine, Faculty of Medicine and Health Sciences , University of Western Australia , Perth , Australia
| | - Anindita Chakraborty
- b School of Medicine, Faculty of Medicine and Health Sciences , University of Western Australia , Perth , Australia
| | - Eric K Moses
- a Centre for Genetic Origins of Health and Disease, School of Biomedical Sciences, The University of Western Australia and School of Biomedical Sciences , Curtin University , Perth , Australia
| | - Gerald F Watts
- b School of Medicine, Faculty of Medicine and Health Sciences , University of Western Australia , Perth , Australia.,c Lipid Disorders Clinic, Department of Cardiology , Royal Perth Hospital , Perth , Australia
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Chao TH, Hsiao PJ, Liu ME, Wu CJ, Chiang FT, Chen ZC, Chen CP, Yeh HI, Lee TH, Chiang CE. A subanalysis of Taiwanese patients from ODYSSEY South Korea and Taiwan study evaluating the efficacy and safety of alirocumab. J Chin Med Assoc 2019; 82:265-271. [PMID: 30946207 DOI: 10.1097/jcma.0000000000000062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Alirocumab can provide significant reductions in low-density lipoprotein cholesterol (LDL-C). However, data regarding its efficacy and safety in Asians are limited. METHODS A subgroup analysis of Taiwanese patients (n = 116) in a randomized trial evaluating the efficacy and safety of alirocumab in South Korea and Taiwan (ODYSSEY KT, clinicaltrials.gov Identifier: NCT02289963) was performed. Patients with hypercholesterolemia at high cardiovascular risk on maximally tolerated statin were randomized to alirocumab (75 mg every 2 weeks; with dose increased to 150 mg at Week 12 if LDL-C ≥ 70 mg/dL at Week 8) or placebo for 24 weeks. The primary efficacy endpoint was the percent change in LDL-C from baseline to Week 24. Safety was assessed for a total of 32 weeks. RESULTS At Week 24, the percent change in calculated LDL-C in the alirocumab group (n = 57) was -51%, whereas that in the placebo group (n = 59) was 2.5%. Alirocumab significantly improved other lipid parameters, including non-high-density lipoprotein cholesterol, apolipoprotein B and A1, lipoprotein (a), high-density lipoprotein cholesterol, and total cholesterol. A significantly higher proportion of patients in the alirocumab group reached an LDL-C target below 70 mg/dL than those in the placebo group (81.3% vs 15.4%). The incidence of treatment-emergent adverse events was comparable between both groups. CONCLUSION Alirocumab treatment provided a favorable effect on LDL-C levels and other lipid parameters, and was generally well-tolerated in patients from Taiwan. The results of current analysis were consistent with the overall ODYSSEY phase 3 program.
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Affiliation(s)
- Ting-Hsing Chao
- Department of Internal Medicine, College of Medicine and Hospital, National Cheng Kung University, Tainan, Taiwan, ROC
| | - Pi-Jung Hsiao
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan, ROC
| | - Ming-En Liu
- Division of Cardiology, Department of Internal Medicine, Hsinchu Mackay Memorial Hospital, Hsinchu, Taiwan, ROC
| | - Chiung-Jen Wu
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital- Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung and Taoyuan, Taiwan, ROC
| | - Fu-Tien Chiang
- Division of Cardiology, Department of Internal Medicine, Fu-Jen Catholic University Hospital, New Taipei City, Taiwan, ROC
| | - Zhih-Cherng Chen
- Division of Cardiovascular Medicine, Chi-Mei Medical Center, Tainan, Taiwan, ROC
| | - Ching-Pei Chen
- Division of Cardiology, Changhua Christian Hospital, Changhua, Taiwan, ROC
| | - Hung-I Yeh
- Division of Cardiology, Department of Medicine, Mackay Memorial Hospital, Mackay Medical College, Taipei and New Taipei City, Taiwan, ROC
| | - Tsong-Hai Lee
- Stroke Center and Department of Neurology, Linkou Chang Gung Memorial Hospital and College of Medicine, Chang Gung University, Taoyuan, Taiwan, ROC
| | - Chern-En Chiang
- General Clinical Research Center, Division of Cardiology, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan, ROC
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Abstract
Lipoprotein (a) is a low-density lipoprotein-like particle covalently bound to a glycoprotein called apolipoprotein(a) that is under potent genetic control. Plasma levels of lipoprotein (a) vary by up to 1000-fold among individuals, with 1 in 4 having levels that increase the risk of atherosclerotic cardiovascular disease. New evidence supports a causal role for lipoprotein (a) in atherosclerotic cardiovascular disease and aortic valve stenosis. Individuals with elevated lipoprotein (a) have a high life-time burden of atherosclerotic cardiovascular disease. This notion is important for coronary prevention. But is lipoprotein (a) ready for prime-time use in coronary prevention clinics?
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Affiliation(s)
- Katrina L Ellis
- School of Medicine, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia; School of Biomedical Sciences, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
| | - Gerald F Watts
- School of Medicine, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia; Department of Cardiology, Lipid Disorders Clinic, Royal Perth Hospital, GPO Box X2213, Perth, WA 6001, Australia.
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7
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Fitzgerald G, Kiernan T. PCSK9 inhibitors and LDL reduction: pharmacology, clinical implications, and future perspectives. Expert Rev Cardiovasc Ther 2018; 16:567-578. [DOI: 10.1080/14779072.2018.1497975] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Gerald Fitzgerald
- Cardiology Department, University Hospital Limerick, Limerick, Ireland
| | - Tom Kiernan
- Cardiology Department, University Hospital Limerick, Limerick, Ireland
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8
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Song KH, Kim YH, Im AR, Kim YH. Black Raspberry Extract Enhances LDL Uptake in HepG2 Cells by Suppressing PCSK9 Expression to Upregulate LDLR Expression. J Med Food 2018; 21:560-567. [DOI: 10.1089/jmf.2017.4069] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Affiliation(s)
- Kwang Hoon Song
- Mibyeong Research Center, Korea Institute of Oriental Medicine, Yuseong-gu, Daejeon, Korea
- University of Science and Technology, Yuseong-gu, Daejeon, Korea
| | - Young Hwa Kim
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Yuseong-gu, Daejeon, Korea
| | - A-Rang Im
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Yuseong-gu, Daejeon, Korea
| | - Yun Hee Kim
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Yuseong-gu, Daejeon, Korea
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Kosmas CE, DeJesus E, Morcelo R, Garcia F, Montan PD, Guzman E. Lipid-lowering interventions targeting proprotein convertase subtilisin/kexin type 9 (PCSK9): an emerging chapter in lipid-lowering therapy. Drugs Context 2017; 6:212511. [PMID: 29209403 PMCID: PMC5706592 DOI: 10.7573/dic.212511] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 10/24/2017] [Accepted: 10/24/2017] [Indexed: 12/12/2022] Open
Abstract
Proprotein convertase subtilisin/kexin type 9 (PCSK9) is a serine protease that is mainly expressed in the liver but can also be found in the intestine and kidneys. PCSK9 promotes the degradation of low density lipoprotein receptors (LDLR) by reducing their recycling and targeting the receptors for lysosomal destruction, thereby decreasing the rate of removal of LDL-cholesterol from the circulation. Thus, interventions targeting PCSK9 by reducing its expression may lead to significant reductions of LDL-cholesterol and possibly decrease cardiovascular risk. The present review aims to present and discuss the current clinical and scientific data pertaining to lipid-lowering interventions targeting PCSK9.
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Affiliation(s)
- Constantine E Kosmas
- Department of Medicine, Division of Cardiology, Mount Sinai Hospital, New York, NY, USA
| | - Eddy DeJesus
- Department of Medicine, Bronx-Lebanon Hospital Center, Bronx, NY, USA
| | - Rosmery Morcelo
- Cardiology Clinic, Cardiology Unlimited, PC, New York, NY, USA
| | - Frank Garcia
- Cardiology Clinic, Cardiology Unlimited, PC, New York, NY, USA
| | - Peter D Montan
- Cardiology Clinic, Cardiology Unlimited, PC, New York, NY, USA
| | - Eliscer Guzman
- Department of Medicine, Division of Cardiology, Montefiore Medical Center, Bronx, NY, USA
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10
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Galeano JA, Restrepo CA, Caraballo C, Hincapié C, Jaimes F. Ronda clínica y epidemiológica: club de revistas. IATREIA 2017. [DOI: 10.17533/udea.iatreia.v30n4a11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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11
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Ellis KL, Boffa MB, Sahebkar A, Koschinsky ML, Watts GF. The renaissance of lipoprotein(a): Brave new world for preventive cardiology? Prog Lipid Res 2017; 68:57-82. [DOI: 10.1016/j.plipres.2017.09.001] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 09/01/2017] [Accepted: 09/05/2017] [Indexed: 12/24/2022]
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Fazio S, Minnier J, Shapiro MD, Tsimikas S, Tarugi P, Averna MR, Arca M, Tavori H. Threshold Effects of Circulating Angiopoietin-Like 3 Levels on Plasma Lipoproteins. J Clin Endocrinol Metab 2017; 102. [PMID: 28633452 PMCID: PMC5587068 DOI: 10.1210/jc.2016-4043] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
CONTEXT Angiopoietin-like 3 (ANGPTL3) deficiency in plasma due to loss-of-function gene mutations results in familial combined hypobetalipoproteinemia type 2 (FHBL2) in homozygotes. However, the lipid phenotype in heterozygotes is much milder and does not appear to relate directly to ANGPTL3 levels. Furthermore, the low-density lipoprotein (LDL) phenotype in carriers of ANGPTL3 mutations is unexplained. OBJECTIVE To determine whether reduction below a critical threshold in plasma ANGPTL3 levels is a determinant of lipoprotein metabolism in FHBL2, and to determine whether proprotein convertase subtilisin kexin type 9 (PCSK9) is involved in determining low LDL levels in this condition. DESIGN We studied subjects from 19 families with ANGPTL3 mutations and subjects with familial combined hypobetalipoproteinemia type 1 (FHBL1) due to truncated apolipoprotein B (apoB) species. RESULTS First, total cholesterol, high-density lipoprotein (HDL) cholesterol, triglycerides, and HDL and LDL particle concentration correlated with plasma ANGPTL3 levels but only when the latter was <25% of normal (<60 ng/dL). Second, the very low-density lipoprotein particle concentration correlated strongly with plasma ANGPTL3 when the latter was <58% of normal. Third, both FHBL1 and FHBL2 subjects showed low levels of mature and LDL-bound PCSK9 and higher levels of its furin-cleaved form. Finally, LDL-bound PCSK9 is protected from cleavage by furin and binds to the LDL receptor more strongly than apoB-free PCSK9. CONCLUSIONS Our results suggest that the hypolipidemic effects of ANGPTL3 mutations in FHBL2 are dependent on a threshold of plasma ANGPTL3 levels, with differential effects on various lipoprotein particles. The increased inactivation of PCSK9 by furin in FHBL1 and FHBL2 is likely to cause increased LDL clearance and suggests novel therapeutic avenues.
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Affiliation(s)
| | | | | | | | | | | | | | - Hagai Tavori
- Center for Preventive Cardiology, Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon 97239
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13
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Jialal I, Inn M, Siegel D, Devaraj S. Underestimation of Low Density Lipoprotein-Cholesterol With the Friedewald Equation Versus a Direct Homogenous Low Density Lipoprotein-Cholesterol Assay. Lab Med 2017; 48:220-224. [DOI: 10.1093/labmed/lmx023] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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14
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Schwartz J, Padmanabhan A, Aqui N, Balogun RA, Connelly-Smith L, Delaney M, Dunbar NM, Witt V, Wu Y, Shaz BH. Guidelines on the Use of Therapeutic Apheresis in Clinical Practice-Evidence-Based Approach from the Writing Committee of the American Society for Apheresis: The Seventh Special Issue. J Clin Apher 2017; 31:149-62. [PMID: 27322218 DOI: 10.1002/jca.21470] [Citation(s) in RCA: 276] [Impact Index Per Article: 39.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The American Society for Apheresis (ASFA) Journal of Clinical Apheresis (JCA) Special Issue Writing Committee is charged with reviewing, updating, and categorizing indications for the evidence-based use of therapeutic apheresis in human disease. Since the 2007 JCA Special Issue (Fourth Edition), the Committee has incorporated systematic review and evidence-based approaches in the grading and categorization of apheresis indications. This Seventh Edition of the JCA Special Issue continues to maintain this methodology and rigor to make recommendations on the use of apheresis in a wide variety of diseases/conditions. The JCA Seventh Edition, like its predecessor, has consistently applied the category and grading system definitions in the fact sheets. The general layout and concept of a fact sheet that was used since the fourth edition has largely been maintained in this edition. Each fact sheet succinctly summarizes the evidence for the use of therapeutic apheresis in a specific disease entity. The Seventh Edition discusses 87 fact sheets (14 new fact sheets since the Sixth Edition) for therapeutic apheresis diseases and medical conditions, with 179 indications, which are separately graded and categorized within the listed fact sheets. Several diseases that are Category IV which have been described in detail in previous editions and do not have significant new evidence since the last publication are summarized in a separate table. The Seventh Edition of the JCA Special Issue serves as a key resource that guides the utilization of therapeutic apheresis in the treatment of human disease. J. Clin. Apheresis 31:149-162, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Joseph Schwartz
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York
| | - Anand Padmanabhan
- Blood Center of Wisconsin, Department of Pathology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Nicole Aqui
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Rasheed A Balogun
- Division of Nephrology, University of Virginia, Charlottesville, Virginia
| | - Laura Connelly-Smith
- Department of Medicine, Seattle Cancer Care Alliance and University of Washington, Seattle, Washington
| | - Meghan Delaney
- Bloodworks Northwest, Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Nancy M Dunbar
- Department of Pathology and Laboratory Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Volker Witt
- Department for Pediatrics, St. Anna Kinderspital, Medical University of Vienna, Vienna, Austria
| | - Yanyun Wu
- Bloodworks Northwest, Department of Laboratory Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Beth H Shaz
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York.,New York Blood Center, Department of Pathology.,Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia
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15
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Zakiev ER, Nikiforov NG, Orekhov AN. Cell-Based Models for Development of Antiatherosclerotic Therapies. BIOMED RESEARCH INTERNATIONAL 2017; 2017:5198723. [PMID: 28286766 PMCID: PMC5329658 DOI: 10.1155/2017/5198723] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Accepted: 01/11/2017] [Indexed: 01/20/2023]
Abstract
The leading cause of death worldwide is cardiovascular disease. Among the conditions related to the term, the most prominent one is the development of atherosclerotic plaques in the walls of arteries. The situation gets even worse with the fact that the plaque development may stay asymptomatic for a prolonged period of time. When it manifests as a cardiovascular disorder, it is already too late: the unfortunate individual is prescribed with a plethora of synthetic drugs, which are of debatable efficacy in the prevention of atherosclerotic lesions and safety. Cell models could be useful for the purpose of screening substances potentially effective against atherosclerosis progression and effective in reduction of already present plaques. In this overview, we present studies making use of in vitro and ex vivo models of atherosclerosis development that can prove valuable for clinical applications.
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Affiliation(s)
- Emile R. Zakiev
- Institute of General Pathology and Pathophysiology, Moscow, Russia
- INSERM UMR_S 1166-ICAN Faculté de Médecine Pitié-Salpêtrière, Paris, France
| | | | - Alexander N. Orekhov
- Institute of General Pathology and Pathophysiology, Moscow, Russia
- Institute for Atherosclerosis Research, Skolkovo Innovation Center, Moscow, Russia
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Orekhov AN, Ivanova EA. Cellular models of atherosclerosis and their implication for testing natural substances with anti-atherosclerotic potential. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2016; 23:1190-1197. [PMID: 26922038 DOI: 10.1016/j.phymed.2016.01.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 01/07/2016] [Accepted: 01/08/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Atherosclerosis remains a major problem in the modern society being a cause of life-threatening cardiovascular diseases. Subclinical atherosclerosis can be present for years before the symptoms become obvious, and first manifestations of the disease in a form of acute ischemia of organs are often fatal. The development of atherosclerosis is characterized by lipid accumulation in the aortic wall and formation of foam cells overloaded with large amounts of lipid inclusions in the cytoplasm. Current therapy of atherosclerosis is aimed mostly at the normalization of the blood lipid profile, and has no direct activity on the atherosclerotic plaque development. It is therefore necessary to continue the search for substances that possess a direct anti-atherosclerotic effect, preventing the cholesterol deposition in the arterial wall cells and reducing the existing plaques. PURPOSE Medicinal plants with potential anti-atherosclerotic activity are especially interesting in that regard, as plant-based medications are often characterized by good tolerability and are suitable for long-term therapy. The evaluation of novel active substances requires the establishment of reliable models of atherogenesis. In this review we discuss cellular models based on cultured human aortic cells. We also discuss several examples of successful application of these models for evaluation of anti-atherosclerotic activity of natural products of botanical origin based on measurable parameters, such as intracellular cholesterol accumulation. CHAPTERS We describe several examples of successful screening and clinical studies evaluating natural products that can be beneficial for prevention and treatment of atherosclerosis, including the subclinical (asymptomatic) forms. CONCLUSION Several substances of botanical origin have been demonstrated to be active for treatment and prevention of atherosclerosis. The obtained results encourage future studies of naturally occurring anti-atherosclerotic agents.
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Affiliation(s)
- Alexander N Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Sciences, Moscow 125315, Russia; Institute for Atherosclerosis Research, Skolkovo Innovative Center, Moscow 121609, Russia; Department of Biophysics, Faculty of Biology, Lomonosov Moscow State University, Moscow 119991, Russia.
| | - Ekaterina A Ivanova
- Department of Development and Regeneration, Katholieke Universiteit, Leuven 3000 Belgium.
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Oliveira EF, Santos-Martins D, Ribeiro AM, Brás NF, Cerqueira NS, Sousa SF, Ramos MJ, Fernandes PA. HMG-CoA Reductase inhibitors: an updated review of patents of novel compounds and formulations (2011-2015). Expert Opin Ther Pat 2016; 26:1257-1272. [PMID: 27537201 DOI: 10.1080/13543776.2016.1216977] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Statins are remarkably safe and efficient medications that are the mainstay of hypercholesterolemia treatment and have proven to be an invaluable tool to lower the risk of acute cardiovascular events. These compounds are inhibitors of 3-hydroxy-methylglutaryl CoA reductase (HMG-R), the rate-limiting enzyme in cholesterol biosynthesis. In spite of their success, they present undesirable side effects and are now loosing patent protection, which provides a great opportunity for the development of new and improved statins. Areas covered: This review summarizes the new patents for HMG-R inhibitors for the 2011-2015 period. Combinations of existing statins with other drugs are also addressed, as well as novel applications of existing statins. Expert opinion: Recent efforts for the discovery of HMG-CoA-R inhibitors has resulted in several new molecules. Most of these are based on commercially available statins, including sterol and terpenoid derivatives. A few peptides have also been patented. However, the origin of the side effects caused by previous statins continues to be, to a large extent, unknown. Although the patents published in the past 5 years are promising, and might result in new drugs, there is still no way to know if they will present reduced toxicity. Only future clinical trials will answer this question.
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Affiliation(s)
- Eduardo Filipe Oliveira
- a UCIBIO@REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências , Universidade do Porto , Porto , Portugal
| | - Diogo Santos-Martins
- a UCIBIO@REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências , Universidade do Porto , Porto , Portugal
| | - António Meireles Ribeiro
- a UCIBIO@REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências , Universidade do Porto , Porto , Portugal
| | - Natércia Fernandes Brás
- a UCIBIO@REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências , Universidade do Porto , Porto , Portugal
| | - Nuno Sousa Cerqueira
- a UCIBIO@REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências , Universidade do Porto , Porto , Portugal
| | - Sérgio Filipe Sousa
- a UCIBIO@REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências , Universidade do Porto , Porto , Portugal
| | - Maria João Ramos
- a UCIBIO@REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências , Universidade do Porto , Porto , Portugal
| | - Pedro Alexandrino Fernandes
- a UCIBIO@REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências , Universidade do Porto , Porto , Portugal
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Ellis KL, Hooper AJ, Burnett JR, Watts GF. Progress in the care of common inherited atherogenic disorders of apolipoprotein B metabolism. Nat Rev Endocrinol 2016; 12:467-84. [PMID: 27199287 DOI: 10.1038/nrendo.2016.69] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Familial hypercholesterolaemia, familial combined hyperlipidaemia (FCH) and elevated lipoprotein(a) are common, inherited disorders of apolipoprotein B metabolism that markedly accelerate the onset of atherosclerotic cardiovascular disease (ASCVD). These disorders are frequently encountered in clinical lipidology and need to be accurately identified and treated in both index patients and their family members, to prevent the development of premature ASCVD. The optimal screening strategies depend on the patterns of heritability for each condition. Established therapies are widely used along with lifestyle interventions to regulate levels of circulating lipoproteins. New therapeutic strategies are becoming available, and could supplement traditional approaches in the most severe cases, but their long-term cost-effectiveness and safety have yet to be confirmed. We review contemporary developments in the understanding, detection and care of these highly atherogenic disorders of apolipoprotein B metabolism.
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Affiliation(s)
- Katrina L Ellis
- School of Medicine and Pharmacology, The University of Western Australia, PO Box X2213, Perth, Western Australia 6847, Australia
- Centre for Genetic Origins of Health and Disease, The University of Western Australia and Curtin University, 35 Stirling Highway, Crawley, Perth, Western Australia 6009, Australia
| | - Amanda J Hooper
- School of Medicine and Pharmacology, The University of Western Australia, PO Box X2213, Perth, Western Australia 6847, Australia
- PathWest Laboratory Medicine WA, Royal Perth Hospital and Fiona Stanley Hospital Network, Perth, Western Australia, Australia
- School of Pathology and Laboratory Medicine, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, Western Australia 6009, Australia
| | - John R Burnett
- School of Medicine and Pharmacology, The University of Western Australia, PO Box X2213, Perth, Western Australia 6847, Australia
- PathWest Laboratory Medicine WA, Royal Perth Hospital and Fiona Stanley Hospital Network, Perth, Western Australia, Australia
- Lipid Disorders Clinic, Department of Cardiology, Royal Perth Hospital, Wellington Street Perth, Western Australia, Australia
| | - Gerald F Watts
- School of Medicine and Pharmacology, The University of Western Australia, PO Box X2213, Perth, Western Australia 6847, Australia
- Lipid Disorders Clinic, Department of Cardiology, Royal Perth Hospital, Wellington Street Perth, Western Australia, Australia
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Acute Disseminated Encephalomyelitis. J Clin Apher 2016; 31:163-202. [PMID: 27322219 DOI: 10.1002/jca.21474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Abstract
Over the past three decades, statins have become first-line treatment for reducing LDL cholesterol (LDL-C) and cardiovascular disease (CVD). They have provided a clear, robust, and reproducible relationship between the absolute LDL-C reduction and the decrease in CVD; every 1 mmol/L (~40 mg/dL) in LDL-C reduction results in a 22 % decrease in CVD events. This relationship has recently been extended to reduction in LDL-C with a non-statin, ezetimibe, on top of statin therapy, further consolidating LDL-C as the cornerstone in CVD risk reduction. Despite these two effective and safe LDL-C-lowering drugs, there remains a need for additional drugs to reduce LDL-C, the focus of this review which covers agents which produce sufficient LDL-C reduction to potentially help address this unmet need and are either recently approved or currently in clinical trials.
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Affiliation(s)
- Evan A Stein
- Metabolic and Atherosclerosis Research Center, 5355 Medpace Way, Cincinnati, OH, 45227, USA.
| | - Frederick J Raal
- Department of Medicine, Faculty of Health Sciences, University of the Witwatersrand, 7 York Rd, Parktown, 2193, Johannesburg, South Africa.
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Abstract
Glucose-control has a modest beneficial effect on cardiovascular outcomes in patients with type 2 diabetes mellitus. Thus, managing other atherogenic risk factors including hypertriglyceridemia, low HDL-cholesterol and moderately elevated LDL-cholesterol levels with increased small dense LDL-cholesterol fraction, is crucial. Insulin resistance is a key pathophysiologic factor in this population. Treatment starts with lifestyle modifications, but current best programmes have not translated into positive cardiovascular outcomes. Lowering LDL-cholesterol with statins is currently the main treatment strategy, but significant residual risk remains. Attempts to elevate HDL-cholesterol and to reduce triglycerides levels, with niacin or fibrates have not improved cardiovascular prognosis, but addition of ezetimibe, or fibrates in specific patients subgroups, have shown modest benefit. Some glucose-lowering medications and bariatric surgery may also improve diabetic dyslipidemia. Results of three major cardiovascular outcome trials evaluating the effect of lowering LDL-cholesterol with PCSK9 inhibitors in large cohorts that include thousands of diabetic patients are pending.
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Affiliation(s)
- Auryan Szalat
- Internal Medicine Ward, Endocrinology and Metabolism Service, Hadassah Hebrew University Medical Center, PO BOX 24035, 91240, Jerusalem, Israel.
| | - Ronen Durst
- Cardiology Department, Hadassah Hebrew University Medical Center, 91120, Jerusalem, Israel.
| | - Eran Leitersdorf
- Hadassah Hebrew University Medical Center, 91120, Jerusalem, Israel.
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Neef D, Berthold HK, Gouni-Berthold I. Lomitapide for use in patients with homozygous familial hypercholesterolemia: a narrative review. Expert Rev Clin Pharmacol 2016; 9:655-63. [DOI: 10.1586/17512433.2016.1162095] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Hegele RA, Gidding SS, Ginsberg HN, McPherson R, Raal FJ, Rader DJ, Robinson JG, Welty FK. Nonstatin Low-Density Lipoprotein-Lowering Therapy and Cardiovascular Risk Reduction-Statement From ATVB Council. Arterioscler Thromb Vasc Biol 2015; 35:2269-80. [PMID: 26376908 DOI: 10.1161/atvbaha.115.306442] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 08/28/2015] [Indexed: 12/15/2022]
Abstract
Pharmacological reduction of low-density lipoprotein (LDL) cholesterol using statin drugs is foundational therapy to reduce cardiovascular disease (CVD) risk. Here, we consider the place of nonstatin therapies that also reduce LDL cholesterol in prevention of CVD. Among conventional nonstatins, placebo-controlled randomized clinical trials showed that bile acid sequestrants, niacin, and fibrates given as monotherapy each reduce CVD end points. From trials in which patients' LDL cholesterol was already well controlled on a statin, adding ezetimibe incrementally reduced CVD end points, whereas adding a fibrate or niacin showed no incremental benefit. Among emerging nonstatins, monoclonal antibodies against proprotein convertase subtilisin kexin type 9 added to a statin and given for ≤78 weeks showed preliminary evidence of reductions in CVD outcomes. Although these promising early findings contributed to the recent approval of these agents in Europe and in North America, much larger and longer duration outcomes studies are ongoing for definitive proof of CVD benefits. Other nonstatin agents recently approved in the United States include lomitapide and mipomersen, which both act via distinctive LDL receptor independent mechanisms to substantially reduce LDL cholesterol in homozygous familial hypercholesterolemia. We also address some unanswered questions, including measuring alternative biochemical variables to LDL cholesterol, evidence for treating children with monitoring of subclinical atherosclerosis, and potential risks of extremely low LDL cholesterol. As evidence for benefit in CVD prevention accumulates, we anticipate that clinical practice will shift toward more assertive LDL-lowering treatment, using both statins and nonstatins initiated earlier in appropriately selected patients.
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Affiliation(s)
- Robert A Hegele
- From the Department of Medicine, Robarts Research Institute, Schulich School of Medicine, Western University, London, Ontario, Canada (R.A.H.); Nemours Cardiac Center, A. I. duPont Hospital for Children, Wilmington, DE (S.S.G.); Irving Institute for Clinical and Translational Research, Department of Medicine, Columbia University, New York, NY (H.N.G.); Department of Medicine and Biochemistry, Atherogenomics Laboratory, University of Ottawa Heart Institute, Ottawa, Ontario, Canada (R.M.); Carbohydrate and Lipid Metabolism Research Unit, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa (F.J.R); Department of Genetics (D.J.R.) and Division of Translational Medicine and Human Genetics, Department of Medicine (D.J.R.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Department of Epidemiology and Medicine, University of Iowa, Iowa City (J.G.R.); and Division of Cardiology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (F.K.W.).
| | - Samuel S Gidding
- From the Department of Medicine, Robarts Research Institute, Schulich School of Medicine, Western University, London, Ontario, Canada (R.A.H.); Nemours Cardiac Center, A. I. duPont Hospital for Children, Wilmington, DE (S.S.G.); Irving Institute for Clinical and Translational Research, Department of Medicine, Columbia University, New York, NY (H.N.G.); Department of Medicine and Biochemistry, Atherogenomics Laboratory, University of Ottawa Heart Institute, Ottawa, Ontario, Canada (R.M.); Carbohydrate and Lipid Metabolism Research Unit, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa (F.J.R); Department of Genetics (D.J.R.) and Division of Translational Medicine and Human Genetics, Department of Medicine (D.J.R.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Department of Epidemiology and Medicine, University of Iowa, Iowa City (J.G.R.); and Division of Cardiology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (F.K.W.)
| | - Henry N Ginsberg
- From the Department of Medicine, Robarts Research Institute, Schulich School of Medicine, Western University, London, Ontario, Canada (R.A.H.); Nemours Cardiac Center, A. I. duPont Hospital for Children, Wilmington, DE (S.S.G.); Irving Institute for Clinical and Translational Research, Department of Medicine, Columbia University, New York, NY (H.N.G.); Department of Medicine and Biochemistry, Atherogenomics Laboratory, University of Ottawa Heart Institute, Ottawa, Ontario, Canada (R.M.); Carbohydrate and Lipid Metabolism Research Unit, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa (F.J.R); Department of Genetics (D.J.R.) and Division of Translational Medicine and Human Genetics, Department of Medicine (D.J.R.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Department of Epidemiology and Medicine, University of Iowa, Iowa City (J.G.R.); and Division of Cardiology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (F.K.W.)
| | - Ruth McPherson
- From the Department of Medicine, Robarts Research Institute, Schulich School of Medicine, Western University, London, Ontario, Canada (R.A.H.); Nemours Cardiac Center, A. I. duPont Hospital for Children, Wilmington, DE (S.S.G.); Irving Institute for Clinical and Translational Research, Department of Medicine, Columbia University, New York, NY (H.N.G.); Department of Medicine and Biochemistry, Atherogenomics Laboratory, University of Ottawa Heart Institute, Ottawa, Ontario, Canada (R.M.); Carbohydrate and Lipid Metabolism Research Unit, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa (F.J.R); Department of Genetics (D.J.R.) and Division of Translational Medicine and Human Genetics, Department of Medicine (D.J.R.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Department of Epidemiology and Medicine, University of Iowa, Iowa City (J.G.R.); and Division of Cardiology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (F.K.W.)
| | - Frederick J Raal
- From the Department of Medicine, Robarts Research Institute, Schulich School of Medicine, Western University, London, Ontario, Canada (R.A.H.); Nemours Cardiac Center, A. I. duPont Hospital for Children, Wilmington, DE (S.S.G.); Irving Institute for Clinical and Translational Research, Department of Medicine, Columbia University, New York, NY (H.N.G.); Department of Medicine and Biochemistry, Atherogenomics Laboratory, University of Ottawa Heart Institute, Ottawa, Ontario, Canada (R.M.); Carbohydrate and Lipid Metabolism Research Unit, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa (F.J.R); Department of Genetics (D.J.R.) and Division of Translational Medicine and Human Genetics, Department of Medicine (D.J.R.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Department of Epidemiology and Medicine, University of Iowa, Iowa City (J.G.R.); and Division of Cardiology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (F.K.W.)
| | - Daniel J Rader
- From the Department of Medicine, Robarts Research Institute, Schulich School of Medicine, Western University, London, Ontario, Canada (R.A.H.); Nemours Cardiac Center, A. I. duPont Hospital for Children, Wilmington, DE (S.S.G.); Irving Institute for Clinical and Translational Research, Department of Medicine, Columbia University, New York, NY (H.N.G.); Department of Medicine and Biochemistry, Atherogenomics Laboratory, University of Ottawa Heart Institute, Ottawa, Ontario, Canada (R.M.); Carbohydrate and Lipid Metabolism Research Unit, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa (F.J.R); Department of Genetics (D.J.R.) and Division of Translational Medicine and Human Genetics, Department of Medicine (D.J.R.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Department of Epidemiology and Medicine, University of Iowa, Iowa City (J.G.R.); and Division of Cardiology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (F.K.W.)
| | - Jennifer G Robinson
- From the Department of Medicine, Robarts Research Institute, Schulich School of Medicine, Western University, London, Ontario, Canada (R.A.H.); Nemours Cardiac Center, A. I. duPont Hospital for Children, Wilmington, DE (S.S.G.); Irving Institute for Clinical and Translational Research, Department of Medicine, Columbia University, New York, NY (H.N.G.); Department of Medicine and Biochemistry, Atherogenomics Laboratory, University of Ottawa Heart Institute, Ottawa, Ontario, Canada (R.M.); Carbohydrate and Lipid Metabolism Research Unit, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa (F.J.R); Department of Genetics (D.J.R.) and Division of Translational Medicine and Human Genetics, Department of Medicine (D.J.R.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Department of Epidemiology and Medicine, University of Iowa, Iowa City (J.G.R.); and Division of Cardiology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (F.K.W.)
| | - Francine K Welty
- From the Department of Medicine, Robarts Research Institute, Schulich School of Medicine, Western University, London, Ontario, Canada (R.A.H.); Nemours Cardiac Center, A. I. duPont Hospital for Children, Wilmington, DE (S.S.G.); Irving Institute for Clinical and Translational Research, Department of Medicine, Columbia University, New York, NY (H.N.G.); Department of Medicine and Biochemistry, Atherogenomics Laboratory, University of Ottawa Heart Institute, Ottawa, Ontario, Canada (R.M.); Carbohydrate and Lipid Metabolism Research Unit, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa (F.J.R); Department of Genetics (D.J.R.) and Division of Translational Medicine and Human Genetics, Department of Medicine (D.J.R.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Department of Epidemiology and Medicine, University of Iowa, Iowa City (J.G.R.); and Division of Cardiology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (F.K.W.)
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Development of Antiatherosclerotic Drugs on the basis of Natural Products Using Cell Model Approach. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:463797. [PMID: 26347804 PMCID: PMC4549547 DOI: 10.1155/2015/463797] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 01/07/2015] [Accepted: 01/14/2015] [Indexed: 11/18/2022]
Abstract
Atherosclerosis including its subclinical form is one of the key medical and social problems. At present, there is no therapy available for widespread use against subclinical atherosclerosis. The use of synthetic drugs for the prevention of arteriosclerosis in its early stages is not sufficient because of the limited indications for severe side effects and high cost of treatment. Obviously, effective antiatherosclerotic drugs based on natural products would be a preferred alternative. Simple cell-based models for testing different natural products have been developed and the ability of natural products to prevent intracellular lipid accumulation in primary cell culture was evaluated. This approach utilizing cell models allowed to test effects of such direct antiatherosclerotic therapy, analyzing the effects mimicking those which can occur "at the level" of arterial wall via the inhibition of intracellular lipid deposition. The data from the carried out clinical trials support a point of view that the identification of antiatherosclerotic activity of natural products might offer a great opportunity for the prevention and treatment of atherosclerotic disease, reducing cardiovascular morbidity and mortality.
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Giugliano RP, Sabatine MS. Are PCSK9 Inhibitors the Next Breakthrough in the Cardiovascular Field? J Am Coll Cardiol 2015; 65:2638-2651. [DOI: 10.1016/j.jacc.2015.05.001] [Citation(s) in RCA: 127] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Revised: 04/29/2015] [Accepted: 05/04/2015] [Indexed: 01/03/2023]
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Sabatine MS, Giugliano RP, Wiviott SD, Raal FJ, Blom DJ, Robinson J, Ballantyne CM, Somaratne R, Legg J, Wasserman SM, Scott R, Koren MJ, Stein EA. Efficacy and safety of evolocumab in reducing lipids and cardiovascular events. N Engl J Med 2015; 372:1500-9. [PMID: 25773607 DOI: 10.1056/nejmoa1500858] [Citation(s) in RCA: 1127] [Impact Index Per Article: 125.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Evolocumab, a monoclonal antibody that inhibits proprotein convertase subtilisin-kexin type 9 (PCSK9), significantly reduced low-density lipoprotein (LDL) cholesterol levels in short-term studies. We conducted two extension studies to obtain longer-term data. METHODS In two open-label, randomized trials, we enrolled 4465 patients who had completed 1 of 12 phase 2 or 3 studies ("parent trials") of evolocumab. Regardless of study-group assignments in the parent trials, eligible patients were randomly assigned in a 2:1 ratio to receive either evolocumab (140 mg every 2 weeks or 420 mg monthly) plus standard therapy or standard therapy alone. Patients were followed for a median of 11.1 months with assessment of lipid levels, safety, and (as a prespecified exploratory analysis) adjudicated cardiovascular events including death, myocardial infarction, unstable angina, coronary revascularization, stroke, transient ischemic attack, and heart failure. Data from the two trials were combined. RESULTS As compared with standard therapy alone, evolocumab reduced the level of LDL cholesterol by 61%, from a median of 120 mg per deciliter to 48 mg per deciliter (P<0.001). Most adverse events occurred with similar frequency in the two groups, although neurocognitive events were reported more frequently in the evolocumab group. The risk of adverse events, including neurocognitive events, did not vary significantly according to the achieved level of LDL cholesterol. The rate of cardiovascular events at 1 year was reduced from 2.18% in the standard-therapy group to 0.95% in the evolocumab group (hazard ratio in the evolocumab group, 0.47; 95% confidence interval, 0.28 to 0.78; P=0.003). CONCLUSIONS During approximately 1 year of therapy, the use of evolocumab plus standard therapy, as compared with standard therapy alone, significantly reduced LDL cholesterol levels and reduced the incidence of cardiovascular events in a prespecified but exploratory analysis. (Funded by Amgen; OSLER-1 and OSLER-2 ClinicalTrials.gov numbers, NCT01439880 and NCT01854918.).
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Affiliation(s)
- Marc S Sabatine
- From the Thrombolysis in Myocardial Infarction (TIMI) Study Group, Division of Cardiovascular Medicine, Brigham and Women's Hospital, and the Department of Medicine, Harvard Medical School, Boston (M.S.S., R.P.G., S.D.W.); the Carbohydrate and Lipid Metabolism Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (F.J.R.), and the Division of Lipidology, Department of Medicine, University of Cape Town, Cape Town (D.J.B.) - both in South Africa; the Departments of Epidemiology and Medicine, College of Public Health, University of Iowa, Iowa City (J.R.); the Sections of Cardiovascular Research and Cardiology, Department of Medicine, Baylor College of Medicine, and the Center for Cardiovascular Disease Prevention, Houston Methodist DeBakey Heart and Vascular Center, Houston (C.M.B.); Amgen, Thousand Oaks, CA (R. Somaratne, J.L., S.M.W., R. Scott); Jacksonville Center for Clinical Research, Jacksonville, FL (M.J.K.); and the Metabolic and Atherosclerosis Research Center, Cincinnati (E.A.S.)
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Recent advances in the understanding and care of familial hypercholesterolaemia: significance of the biology and therapeutic regulation of proprotein convertase subtilisin/kexin type 9. Clin Sci (Lond) 2015; 129:63-79. [DOI: 10.1042/cs20140755] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Familial hypercholesterolaemia (FH) is an autosomal co-dominant disorder that markedly raises plasma low-density lipoprotein-cholesterol (LDL-C) concentration, causing premature atherosclerotic coronary artery disease (CAD). FH has recently come under intense focus and, although there is general consensus in recent international guidelines regarding diagnosis and treatment, there is debate about the value of genetic studies. Genetic testing can be cost-effective as part of cascade screening in dedicated centres, but the full mutation spectrum responsible for FH has not been established in many populations, and its use in primary care is not at present logistically feasible. Whether using genetic testing or not, cholesterol screening of family members of index patients with an abnormally raised LDL-C must be used to determine the need for early treatment to prevent the development of CAD. The metabolic defects in FH extend beyond LDL, and may affect triacylglycerol-rich and high-density lipoproteins, lipoprotein(a) and oxidative stress. Achievement of the recommended targets for LDL-C with current treatments is difficult, but this may be resolved by new drug therapies. Lipoprotein apheresis remains an effective treatment for severe FH and, although expensive, it costs less than the two recently introduced orphan drugs (lomitapide and mipomersen) for homozygous FH. Recent advances in understanding of the biology of proprotein convertase subtilisin/kexin type 9 (PCSK9) have further elucidated the regulation of lipoprotein metabolism and led to new drugs for effectively treating hypercholesterolaemia in FH and related conditions, as well as for treating many patients with statin intolerance. The mechanisms of action of PCSK9 inhibitors on lipoprotein metabolism and atherosclerosis, as well as their impact on cardiovascular outcomes and cost-effectiveness, remain to be established.
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