Abstract:
:Effects of therapy with the potassium-channel opener and vasodilator nicorandil were studied in reperfused infarction of hypertrophied hearts by using magnetic resonance imaging (MRI), hemodynamic measurements, and histochemical staining. Aortic banding was performed on 22 Sprague-Dawley rats to induce left ventricular (LV) hypertrophy; 11 were the controls. Eight weeks later, the left coronary artery was occluded for 25 minutes in all 33 animals, followed by 3 hours of reperfusion. During occlusion, 11 rats with LV hypertrophy received nicorandil (0.1 mg/kg bolus and 1.5 mg/kg/h for 3 hours). The new necrosis-specific contrast agent Gadophrin-3 was administered to all animals to delineate infarction on multislice T1-weighted spin-echo MRI. Nicorandil increased ischemic tolerance of LV hypertrophy as shown by the reduction of infarction size from 19.3% +/- 1.3% to 10.0% +/- 2.5% LV (P = .005). Infarction size in treated animals was identical to control (9.3% +/- 1.6%). Close correlation was found between MRI and postmortem findings. Functional MRI revealed an improvement in ejection fraction in nicorandil-treated hearts (48.5% +/- 3.4% vs 38.1% +/- 3.2%, P = .04). LV end-diastolic volume and pressure, aortic pressure, and peripheral vascular resistance were highest in untreated hypertrophied hearts. Brief ischemia caused severe injury in hypertrophied hearts. Infusing nicorandil increased the tolerance of hypertrophied hearts to ischemia. MRI is a suitable technique for the evaluation of new therapies in LV hypertrophy.
journal_name
J Cardiovasc Pharmacol Therjournal_title
Journal of cardiovascular pharmacology and therapeuticsauthors
Schalla S,Higgins CB,Chujo M,Saeed Mdoi
10.1177/107424840400900307keywords:
subject
Has Abstractpub_date
2004-09-01 00:00:00pages
193-202issue
3eissn
1074-2484issn
1940-4034journal_volume
9pub_type
杂志文章abstract::BACKGROUND: Circulating cells influence myocardial function during ischemia and reperfusion, (eg, neutrophils exacerbate, and platelets protect the myocardium from deterioration). This study was designed to determine the role of red blood cells on myocardial function following ischemia and reperfusion in isolated rat ...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/107424849600100405
更新日期:1996-10-01 00:00:00
abstract::Congestive heart failure is a chronic and debilitating disease responsible for high cardiac morbidity and mortality in the world and is associated with more than 290 000 deaths in the United States each year. Recent advances in heart failure therapy target many of the mechanical and structural aspects of heart failure...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章,评审
doi:10.1177/1074248410366447
更新日期:2010-06-01 00:00:00
abstract::BACKGROUND: Digoxin improves baroreflex function and reduces neurohumoral activation in severe heart failure, but it is uncertain how digoxin affects ventricular remodeling and progression to left ventricular dysfunction. In addition, the effect of digoxin in in vitro beta-adrenoceptor density and function, and contra...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/107424849800300403
更新日期:1998-10-01 00:00:00
abstract::Ischemia-reperfusion injury is a composite of the injury sustained during a period of reduced or absent blood flow to a tissue or organ and the additional insult sustained on reperfusion, which limits the amount of tissue that can be salvaged. Ischemia-reperfusion injury is the predominant insult during kidney transpl...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章,评审
doi:10.1177/1074248417702893
更新日期:2017-07-01 00:00:00
abstract:PURPOSE:Methotrexate is an anti-inflammatory drug that has been shown to have anti-ischemic effects. Our aim was to evaluate if methotrexate could reduce infarct size in patients with ST-segment elevation myocardial infarction (STEMI). METHODS:We randomly assigned patients with STEMI to receive either methotrexate or ...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1177/1074248417699884
更新日期:2017-11-01 00:00:00
abstract::BACKGROUND: Clinical trials have shown that the use of lipid-lowering agents in postmyocardial infarction (MI) patients reduces rates of subsequent coronary events, reduces coronary artery bypass surgery rates, and improves survival. Physician decisions to prescribe lipid-lowering drugs is influenced by a number of pa...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/107424849800300303
更新日期:1998-07-01 00:00:00
abstract::Ventricular remodeling is a compensatory response that comprises the processes of apoptosis, muscle cell hypertrophy, and rearrangement of the extracellular matrix fibers connecting the muscles. These processes are associated with transformation of endothelium and/or fibroblasts to myofibroblasts. Neutral matrix metal...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章,评审
doi:10.1177/107424840200700407
更新日期:2002-10-01 00:00:00
abstract:OBJECTIVE:Acute lung injury is a common complication after cardiopulmonary bypass (CPB). Oxidative damage greatly impacts CPB-induced lung ischemic pathogenesis and may represent a target for treatment. We aimed to investigate whether curcumin upregulates heme oxygenase 1 (HO-1) expression and ameliorates lung injury i...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248412442002
更新日期:2012-12-01 00:00:00
abstract::BACKGROUND: Nicotine, the active agent in tobacco, is released into the circulation during cigarette smoking. It elevates plasma catecholamines, heart rate, and arterial blood pressure; produces coronary spasm; and increases myocardial work and oxygen demand with concomitant reduction in oxygen supply. This may genera...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/107424849700200407
更新日期:1997-10-01 00:00:00
abstract::BACKGROUND: Micropuncture studies were performed to determine the intrarenal hemodynamic effects of two conventional antihypertensive agents, hydrochlorothiazide (HCTZ) and hydralazine (HYDR) alone and in combination. METHODS AND RESULTS: Male spontaneously hypertensive and normotensive Wistar Kyoto rats (19 weeks old...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/107424849600100109
更新日期:1996-01-01 00:00:00
abstract:BACKGROUND:Dystrophin-deficient cardiomyopathy is a growing clinical problem without targeted treatments. We investigated whether nicorandil promotes cardioprotection in human dystrophin-deficient induced pluripotent stem cell (iPSC)-derived cardiomyocytes and the muscular dystrophy mdx mouse heart. METHODS AND RESULT...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248416636477
更新日期:2016-11-01 00:00:00
abstract::Postischemic accumulation of intracellular Na+ promotes calcium overload and contributes to cellular necrosis. Cardioprotection afforded by pharmacologic blockade of the sodium-hydrogen exchanger subtype 1 (NHE1) is thought to be more remarkable than that obtained by ischemic conditioning (IC). The window of protectio...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248418755120
更新日期:2018-05-01 00:00:00
abstract::Qiliqiangxin (QL), a traditional Chinese medicine, has been shown to be beneficial for chronic heart failure. However, whether QL can also improve endothelial cell function in diabetic rats remains unknown. Here, we investigated the effect of QL treatment on endothelial dysfunction by comparing the effect of QL to tha...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248414537705
更新日期:2015-03-01 00:00:00
abstract::BACKGROUND: We determined if a single administration of heparin or nonanticoagulant N-acetylheparin could reduce myocardial injury resulting from a 90-minute occlusion of the left circumflex coronary artery (LCX) and 6 hours of reperfusion in the anesthetized canine. METHODS AND RESULTS: Heparin (2 mg/kg), N-acetylhep...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1053/jcpt.1996.0219
更新日期:1996-07-01 00:00:00
abstract:BACKGROUND:Patients with coronary artery disease (CAD) should be treated with statins to attain very low cholesterol levels, in order to reduce cardiovascular adverse events. More than 70% of these patients do not reach the appropriate cholesterol goal despite moderate statin doses. However, it is not known whether the...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1177/1074248413489771
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND:Myocardial infarction causes the acidification of the cellular environment and the resultant acidosis maybe arrhythmogenic. The effect of acidosis on the action of antiarrhythmic drugs, an important issue in the antiarrhythmic drug therapy after myocardial infarction, remains to be studied. METHODS:To evalu...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/107424840501000108
更新日期:2005-03-01 00:00:00
abstract:BACKGROUND/AIM:In addition to its cholesterol-lowering effect, atorvastatin (ATV) has been thought to have multiple cardiovascular benefits, including anti-inflammatory and anti-apoptotic properties. The present study was undertaken to determine whether ATV pretreatment could attenuate myocardial apoptosis and inflamma...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248416662348
更新日期:2017-03-01 00:00:00
abstract::Imipramine, an antidepressant drug, can cause potentially lethal cardiotoxic side effects including hypotension, ventricular tachycardia, and decreased cardiac output. This study investigated the mechanism responsible for imipramine-induced cardiac depression in rats. The left ventricular developed pressure (LVDP), ve...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248410366853
更新日期:2010-09-01 00:00:00
abstract::BACKGROUND: Acute myocarditis can progress to chronic heart muscle disease and cardiomyopathy. In the coxsackievirus B(3) (CB(3)) mouse model of myocarditis, early administration of captopril, an angiotensin-converting enzyme (ACE) inhibitor, ameliorated histopathological changes in inflammation, necrosis, and calcifi...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/107424849800300106
更新日期:1998-01-01 00:00:00
abstract:INTRODUCTION:Pulmonary hypertension (PH) is a potentially deadly disease for infants and adults with few existing medical interventions and no cure. In PH, increased blood pressure in the pulmonary artery eventually leads to heart failure. Fasudil, an antagonist of Rho-kinase, causes vasodilation leading to decreased s...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248418772814
更新日期:2018-09-01 00:00:00
abstract::Homing of cardiac myosin-specific CD4-positive T cells into the myocardium is the initial pathologic event of experimental autoimmune myocarditis (EAM). Subsequently, various bystander inflammatory cells are recruited into the myocardium crossing vascular endothelial cell walls. Sulfated polysaccharide fucoidan binds ...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248410378751
更新日期:2011-03-01 00:00:00
abstract::Recently, cyclooxygenase-2 (COX-2) inhibitors (coxibs), a class of drugs intended to be painkillers, have created unprecedented controversy because of their cardiovascular risk profile. The controversy has affected the patients, health-care providers, the Food and Drug Administration, and the manufacturers of these ag...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章,评审
doi:10.1177/107424840501000203
更新日期:2005-06-01 00:00:00
abstract::The results of numerous long-term, randomized trials show that statins significantly decrease the risks of myocardial infarction, stroke, and vascular death as well as total mortality. The benefits of statins on cardiovascular disease in patients who are not experiencing acute coronary syndromes generally become appar...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章,评审
doi:10.1177/107424840400900i109
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND:We investigated whether the cardioprotective, volatile gas anesthetic agent, isoflurane, could improve survival and organ function from hemorrhagic shock in an experimental rat model, compared to standard nonvolatile anesthetic agent ketamine/xylazine. METHODS:Sprague Dawley rats (both genders) were randomi...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248420919221
更新日期:2020-07-01 00:00:00
abstract::Approximately 40% of heart attack survivors remain at increased risk of recurrent cardiovascular events, despite the current treatment options showing that atherothrombosis is not exclusively a disorder of lipoprotein aggregation in the arterial wall. Clinical and experimental data suggest that inflammation plays an i...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章,评审
doi:10.1177/1074248418778548
更新日期:2018-11-01 00:00:00
abstract::The aim of this study was to demonstrate whether HR (Paroven, Venoruton; 0-(beta-hydroxyethyl)-rutosides), was effective in improving levels of plasma free radicals (PFRs) in patients with chronic venous insufficiency (CVI) and venous microangiopathy. Patients were randomized into the treatment group, which received o...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1177/107424840200700107
更新日期:2002-01-01 00:00:00
abstract:BACKGROUND:We hypothesized that the cardioprotective effect of angiotensin II (AngII) type 1 receptor (AT(1)R) blockade during in vivo ischemia-reperfusion (IR) might be associated with an increase in AngII type 2 receptor (AT(2)R) protein, as well as 1,4,5-inositol trisphosphate type 2 receptor (IP(3)R) and protein ki...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1054/JCPT.2000.19245
更新日期:2000-10-01 00:00:00
abstract::The peptide hormone relaxin has traditionally been linked to the maternal adaptation of the cardiovascular system during the first trimester of pregnancy. By promoting nitric oxide formation through different molecular signaling events, relaxin has been proposed as a pleiotropic and cardioprotective hormone in the set...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章,评审
doi:10.1177/1074248415617851
更新日期:2016-07-01 00:00:00
abstract:BACKGROUND:Mortality after acute myocardial ischemia has been reduced by aspirin (ASA) but mechanisms other than the antiplatelet effect have not been established. This article evaluates an antiarrhythmic action during sympathetic stimulation in the intact anesthetized dog with and without ischemia. METHODS AND RESULT...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1053/XV.2000.5492
更新日期:2000-04-01 00:00:00
abstract:AIMS:This study aims to evaluate atherosclerosis, oxidative stress, and arterial stiffness attenuation by simvastatin and ivabradine in hyperlipidemic rabbits. METHODS AND RESULTS:Forty rabbits were randomly divided into 4 groups: atherogenic diet (group C), atherogenic diet plus simvastatin (group S), atherogenic die...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248415617289
更新日期:2016-07-01 00:00:00