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Cardiovascular Therapeutics

Kai Xu, Yaling Han, Bo Xu, Yuejin Yang, Geng Wang, Hui Li, Yong Sun, Ling Tao, Haichang Wang, Zuyi Yuan, Liu Huiliang, Jinghua Liu, Yongping Jia, Genshan Ma, Guosheng Fu, Xiaodong Li, Shuren Li, Shouli Wang, Kui Pu
AIMS: We performed a multicenter, randomized controlled trial to determine the noninferiority of a novel biodegradable-polymer drug-eluting stent (BP-DES), the EXCEL 2 stent, to the first generation BP-DES, the EXCEL stent. METHODS AND RESULTS: Patients (n=419) scheduled to undergo percutaneous coronary intervention (PCI) were randomized to receive either the EXCEL 2 stent (n=208) or the EXCEL stent(n=211) from 15 Chinese centers. At 9 months, primary endpoint in-stent late loss (LL) difference was -0...
March 1, 2018: Cardiovascular Therapeutics
Qi Jin, Liqun Wu, Derek J Dosdall, Li Li, Jack M Rogers, Raymond E Ideker, Jian Huang
INTRODUCTION: Sotalol and verapamil alone reduce reentry incidence during ventricular fibrillation (VF). We tested whether the combination of these two drugs had a synergistic effect on initiation, maintenance and termination of VF. METHODS: Six open-chest pigs received intravenous sotalol (1.5 mg/kg) followed by verapamil (0.136 mg/kg). VF threshold (VFT) was determined by a burst pacing protocol. Two 20 s episodes of VF were recorded from a 21x24 unipolar electrode plaque on the lateral posterior left ventricular epicardium before and after each drug...
February 27, 2018: Cardiovascular Therapeutics
Isabel Quesada, Jimena Cejas, Rodrigo García, Beatriz Cannizzo, Analía Redondo, Claudia Castro
AIM: Perivascular adipose tissue (PVAT) is in intimate contact with the vessel wall and extravascular PVAT-derived inflammatory mediators may adversely influence atherosclerotic plaque formation and stability through outside-to-inside signalling. We sought to investigate the role of PVAT on the atheroma development in an experimental animal model of Metabolic Syndrome (MS) associated with oxidative stress and low-grade inflammatory state. We also studied the effect of Pioglitazone an insulin sensitizer, on the aortic wall and its surrounding PVAT, considering a bi-directional communication between both layers...
February 21, 2018: Cardiovascular Therapeutics
Akinori Sairaku, Yukiko Nakano, Nobuo Shiode, Kazuyoshi Suenari, Nozomu Oda, Koichi Ono, Yasuki Kihara
AIM: The bisoprolol transdermal patch is a newly developed β-blocker designed to deliver its pharmaceutical ingredient through the skin surface. We aimed to compare the bisoprolol transdermal patch and bisoprolol fumarate tablet using the heart rate variability (HRV). METHOD: Eligible hypertensive patients received a 2-week administration with a 2.5 mg bisoprolol fumarate tablet, followed by 24-hour Holter monitoring. The tablet was then switched to a 4 mg bisoprolol transdermal patch, and after 2-weeks of its administration, the Holter monitoring was repeated...
February 21, 2018: Cardiovascular Therapeutics
Hyunah Kim, Hyeseon Lee, Tong Min Kim, So Jung Yang, Seo Yeon Baik, Seung-Hwan Lee, Jae-Hyoung Cho, Hyunyong Lee, Hyeon Woo Yim, In Young Choi, Kun-Ho Yoon, Hun-Sung Kim
AIM: Prescription of statins to patients with chronic liver disease whose alanine transaminase (ALT) is over three times the upper normal limit (UNL) is not recommended. In this study, we attempted to evaluate patients with baseline ALT levels > 3 × UNL who were prescribed statins without ethical problems, using electronic medical records. METHODS: We enrolled subjects with ALT levels > 3 × UNL. The patients were divided into three groups consisting of those who had been taking agents affecting liver function (HEPA) and continued to do so after the statin prescription (HepCon), those who had not previously taken HEPA and began doing so after statin prescription (HepNew), and those who had never taken HEPA (HepNo)...
February 21, 2018: Cardiovascular Therapeutics
Ivano Bonadei, Edoardo Sciatti, Enrico Vizzardi, Davide Fabbricatore, Mattia Pagnoni, Laura Rossi, Valentina Carubelli, Carlo M Lombardi, Marco Metra
AIM: Heart rate (HR) is an important prognostic factor in patients affected by chronic heart failure (CHF); ivabradine has been demonstrated to significantly reduce nonfatal myocardial infarction and hospitalization rate for acute heart failure and to improve left ventricular (LV) reverse remodelling, quality of life, exercise capacity and arterial elastance (Ea) in these patients. We aimed at evaluating the short-term effects of ivabradine on ventricular-arterial coupling (VAC), aortic stiffness and endothelial function in stable patients with CHF...
February 20, 2018: Cardiovascular Therapeutics
Weiding Wang, Kai Zhang, Xiongfeng Li, Zuowang Ma, Yue Zhang, Meng Yuan, Ya Suo, Xue Liang, Gary Tse, Christos A Goudis, Tong Liu, Guangping Li
INTRODUCTION: Atrial structural remodeling in the form of fibrosis contributes to the arrhythmic substrate in atrial fibrillation (AF). The aim of this study was to investigate the effects of doxycycline on chronic intermittent hypoxia (CIH)-induced atrial fibrosis and the pathophysiological mechanisms underlying such changes. METHODS: A total of 30 Sprague-Dawley rats were randomized into three groups: Control group, CIH group, CIH with doxycycline treatment (CIH-D) group...
January 29, 2018: Cardiovascular Therapeutics
Yiping Sun, Ying Xie, Luping Du, Jingwu Sun, Zhiqiang Liu
Myocardial infarction (MI) remains the most common cause of heart failure (HF) worldwide. For almost 50 years, HF has been recognized as a determinant of adverse prognosis after MI, but efforts to promote myocardial repair have failed to be translated into clinical therapies. In the present study, we investigated the effects of BRD4 on cardiac function and the underlying mechanism. We found that BRD4 protein expression was significantly increased in cardiomyocytes of MI rat model and cardiomyocytes under hypoxia, accompanied by the expression of natriuretic peptide A (NPPA) and natriuretic peptide B (NPPB)...
January 20, 2018: Cardiovascular Therapeutics
Ying Jiao Zhao, Monica Teng, Ai Leng Khoo, Rajiv Ananthakrishna, Tiong Cheng Yeo, Boon Peng Lim, Joshua P Loh, Mark Y Chan
AIMS: The safety and efficacy of BP-DES compared to second-generation DP-DES remain unclear in the real-world setting. We compared the clinical outcomes of biodegradable polymer drug-eluting stents (BP-DES) with second-generation durable polymer drug-eluting stents (DP-DES) in an all-comer percutaneous coronary intervention (PCI) registry. METHODS/RESULTS: The study included a cohort of 1,065 patients treated with either BP-DES or DP-DES from January 2009 through October 2015...
January 8, 2018: Cardiovascular Therapeutics
Qinghui Tang, Qiang Len, Zheng Liu, W D Wang
BACKGROUND/AIMS: Oxidative stress injury is believed to be important in diabetic cardiomyopathy. Recent evidence indicates that miR-22 plays an important role in various cardiovascular diseases, but the protective role of miR-22 in diabetic cardiomyopathy remains undetermined. METHODS: Diabetes was induced in male C57BL/6 mice by intraperitoneal injection with streptozotocin combined with a high-fat diet and miR-22 was overexpressed following transfection with adeno-associated virus...
December 29, 2017: Cardiovascular Therapeutics
Wojciech Garczorz, Enrique Gallego-Colon, Agnieszka Kosowska, Agnieszka Kłych-Ratuszny, Michał Woźniak, Wiesław Marcol, K J Niesner, Tomasz Francuz
INTRODUCTION: Cardiovascular disease is the main cause of mortality and morbidity in the industrialized world. Incretin mimetic compounds such as exenatide are currently used in the treatment of type 2 diabetes. AIMS: We investigated the effects of incretin drugs on apoptosis, adhesion molecule expression, and concentration of extracellular matrix (ECM) metalloproteinases under inflammatory conditions within the context of atherosclerotic plaque formation of both human coronary artery endothelial cells (hCAECs) and human aortic endothelial cells (hAoECs)...
December 28, 2017: Cardiovascular Therapeutics
Xiaofen Ma, Xiang Li, Zhanfeng Jiao, Yiming Zhang
INTRODUCTION: Nicorandil has been suggested as a preventative strategy against the incidence of contrast-induced nephropathy (CIN). However, results of relevant randomized controlled trials (RCTs) were inconsistent. AIMS: We performed a meta-analysis of RCTs to evaluate the preventive efficacy of periprocedural treatment of nicorandil against the incidence of CIN. METHODS: Relevant RCTs were identified via search of PubMed, Embase, and Cochrane's Library databases...
December 28, 2017: Cardiovascular Therapeutics
Biagio Castaldi, Giulia Bordin, Massimo Padalino, Elena Cuppini, Vladimiro Vida, Ornella Milanesi
INTRODUCTION: The Fontan procedure is the palliative procedure for single ventricle physiology. Pulmonary resistance plays a key role in the success of this operation. There are conflicting data concerning the impact of pulmonary vasodilators on survival and functional capacity among Fontan patients. AIM: The aim of this retrospective, single-center, nonrandomized study was to investigate the potential effect of pulmonary vasodilators on pulmonary vasculature in Fontan patients...
February 2018: Cardiovascular Therapeutics
Yinlun Weng, Xueyuan Zhang, Anmin Liu, Wangqing Cai, Fangcheng Li, Tong Wang
BACKGROUND: The development of heart failure after acute myocardial infarction (MI) was related to left ventricular (LV) pathological remodeling and dysfunction. Cardiac stem cells (CSCs) provided a new option to treat acute MI. This study was to investigate the effects of CSCs on structural and functional alteration in acute MI. METHODS: Acute MI was induced in 20 Sprague-Dawley rats by ligation of the left anterior descending coronary artery. Two weeks after MI, animals were randomized into CSCs or control group...
February 2018: Cardiovascular Therapeutics
Bahaa N Francis, Maram Salameh, Rola Khamisy-Farah, Raymond Farah
PURPOSE: Pulmonary Hypertension (PH) is complex disease which is associated with endothelial and cardiac dysfunction. Tetrahydrobiopterin (BH4 ) regulates endothelial nitric oxide synthase (eNOS) to produce nitric oxide rather than superoxide which maintains normal endothelial and cardiac function. This study explores the therapeutic potential of BH4 in experimental PH. METHODS: Monocrotaline-induced PH in rats and Hph-1 deficiency in mice were used for animal experiments...
February 2018: Cardiovascular Therapeutics
Tiong Keng Lim, Awson Noman, Anna Maria J Choy, Faisel Khan, Allan D Struthers, Chim C Lang
The role of endothelial dysfunction and oxidative stress in the pathogenesis of cardiac syndrome X has recently been recognized. Allopurinol has previously been shown to improve endothelial dysfunction, reduce oxidative stress burden, and improve myocardial efficiency. In this "proof of concept" study, we investigated the effect of allopurinol on exercise capacity, coronary and peripheral endothelial function, and serum B-type natriuretic peptide (BNP: a marker of cardiac function and myocardial ischemia) in patients with cardiac syndrome X...
February 2018: Cardiovascular Therapeutics
Sergio Fazio, David G Robertson, Tenshang Joh, Hong Wan, Tom Riel, Philippe Forgues, Charles M Baum, Pamela D Garzone, Barry Gumbiner
AIMS: Two multiple-dose phase II studies were conducted in subjects with primary hypercholesterolemia to evaluate the LDL-C lowering efficacy, safety, and tolerability of bococizumab, a proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitor. METHODS: The results from the two phase II, double-blinded, randomized, placebo-controlled, multicenter studies conducted in the USA and Canada were combined. In Study 1, 90 subjects with LDL-C ≥100 mg/dL received intravenous (IV) placebo or bococizumab 0...
February 2018: Cardiovascular Therapeutics
Supatat Chumnumwat, Kong Yi, Aroonrut Lucksiri, Wichit Nosoongnoen, Busba Chindavijak, Suvatna Chulavatnatol, Ajjima Sarapakdi, Surakit Nathisuwan
AIM: This study was conducted to compare predictive accuracy of the available pharmacogenetics (PGx)-guided warfarin-dosing algorithms derived from Caucasian, Asian and mixed population to identify a suitable algorithm for Thai population. METHODS: Ten warfarin-dosing algorithms derived from different population including Caucasian, East Asian, Southeast Asian and mixed races were selected and tested with clinical and genetic data of Thai patients. Comparative performances of these algorithms were tested using mean dose error (MDE) between actual warfarin maintenance dose (AWMD) and predicted dose generated by each dosing algorithm, and percentage of ideal dose prediction (IDP)...
December 15, 2017: Cardiovascular Therapeutics
Chan-Keat Kang, Michael Pope, Chim C Lang, Paul R Kalra
AIM: To discuss the pathophysiology of iron metabolism in chronic heart failure (CHF) and the current knowledge of the efficacy of intravenous (IV) iron therapy in patients with CHF and identify points of controversy as well as highlight areas for future research. DISCUSSION: Iron deficiency is a recognized complication of many chronic conditions. Numerous studies have reported that iron deficiency is highly prevalent in patients with CHF and is associated with exercise intolerance, reduced quality of life, and increased risk of hospitalization and mortality...
December 2017: Cardiovascular Therapeutics
Barry Gumbiner, Tenshang Joh, Hong Liang, Hong Wan, Matteo Levisetti, Alicia M Vana, David L Shelton, Philippe Forgues, Stephan Billotte, Jaume Pons, Charles M Baum, Pamela D Garzone
AIMS: Three single-dose and one multiple-dose phase I studies were conducted in subjects with primary hypercholesterolemia to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of bococizumab, a proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitor. METHODS: The dosing schedules for hypercholesterolemic subjects randomized in the four phase I studies were: 1) ascending, single, intravenous (IV) bococizumab (0.3, 1, 3, 6, 12, or 18 mg/kg) or placebo (N=48; baseline low-density lipoprotein cholesterol [LDL-C] ≥130 mg/dL); 2) single, IV bococizumab (0...
October 27, 2017: Cardiovascular Therapeutics
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