Abstract:
:We investigated the effect of erythropoietin (EPO) posttreatment on survival time and vascular functions in a mouse model of sepsis. Sepsis was induced by cecal ligation and puncture. After 20 ± 2 hours of sepsis, thoracic aorta was isolated for assessing its reactivity to norepinephrine (NE) and acetylcholine (ACh). We also measured the tissue nitric oxide (NO) level, inducible nitric oxide synthase (iNOS), endothelial nitric oxide synthase (eNOS), G protein-coupled receptor kinase 2 (GRK2), and α1D adrenoceptor messenger RNA (mRNA)/protein expression. In septic mice, EPO moderately improved the survival time from 19.68 ± 0.75 to 34.7 ± 3.2 hours. Sepsis significantly decreased the aortic contractile response to NE along with reduced α1D mRNA and protein expression. Erythropoietin significantly preserved the α1D receptor expression and restored NE-induced contractions to control levels in septic mice. Further, it attenuated the aortic α1D receptor desensitization in sepsis which was evident from reduced GRK2 mRNA expression. Accordingly, a selective GRK2 inhibitor markedly restored the contractile responses to NE in sepsis. Erythropoietin treatment attenuated iNOS mRNA expression and iNOS-induced overproduction of NO, but improved endothelium-dependent relaxation to ACh associated with increased eNOS mRNA expression. In conclusion, EPO seems to reverse sepsis-induced vasoplegia to NE through the preservation of α1D adrenoceptor mRNA/protein expression, inhibition of GRK2-mediated desensitization, and attenuation of NO overproduction in the mouse aorta.
journal_name
J Cardiovasc Pharmacol Therjournal_title
Journal of cardiovascular pharmacology and therapeuticsauthors
Kandasamy K,Choudhury S,Singh V,Addison MP,Darzi SA,Kasa JK,Thangamalai R,Dash JR,Kumar T,Sultan F,Singh TU,Parida S,Mishra SKdoi
10.1177/1074248415587968subject
Has Abstractpub_date
2016-01-01 00:00:00pages
100-13issue
1eissn
1074-2484issn
1940-4034pii
1074248415587968journal_volume
21pub_type
杂志文章abstract:BACKGROUND:Although a gradual increase in heart rate (HR) during dobutamine stress testing (DST) is desired, few data exists regarding whether this is similarly achieved in patients of widely varying body mass index (BMI). Whether difference in BMI contributes to variation in the hemodynamic and symptomatic response to...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248410384709
更新日期:2011-06-01 00:00:00
abstract::Acute medical illnesses are associated with a prolonged elevation in inflammatory markers that predisposes patients to thrombosis beyond the duration of their hospital stay. In parallel, both observational and randomized data have demonstrated a rate of postdischarge venous thromboembolic events that often exceeds tha...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章,评审
doi:10.1177/1074248415601894
更新日期:2016-05-01 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::The effects of nitric oxide (NO) and noradrenergic activation in the posterior hypothalamus on arterial pressure tolerance induced by subcutaneous injection of nitroglycerin (NTG) was investigated in anesthetized Sprague-Dawley rats. Intravenous injections of NTG (3, 10, and 30 microg/kg) and sodium nitroprusside (1, ...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248407313832
更新日期:2008-06-01 00:00:00
abstract::BACKGROUND: The effectiveness of antisense oligodeoxynucleotides for in vitro and in vivo studies is limited by a low efficiency of cellular uptake and instability due to degradation by nucleases. To overcome some of these problems, we recently developed a transfer method that utilizes inactivated Sendai virus (hemagg...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/107424849700200308
更新日期:1997-07-01 00:00:00
abstract:BACKGROUND:Low levels of 25-hydroxyvitamin D (25(OH)VitD) have been recognized as an emerging cardiovascular disease (CVD) risk factor. Statins are reported to increase 25(OH)VitD concentration. Animal studies suggest that ezetimibe is a moderate inhibitor of intestinal 25(OH)VitD absorption, but its effect in humans i...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1177/1074248412470513
更新日期:2013-05-01 00:00:00
abstract::Despite initial promising reports that anti-inflammatory properties of cycloxygenase-2 (COX-2) inhibitors may confer anti-atherosclerosis effects and stabilize the atherosclerotic plaque, subsequent data from long-term clinical trials have shown that selective COX-2 inhibitors are associated with increased risk of car...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章,评审
doi:10.1177/1074248407301172
更新日期:2007-06-01 00:00:00
abstract::The National Heart, Lung, and Blood Institute convened a Workshop on September 20-21, 2010, "New Horizons in Cardioprotection," to identify future research directions for cardioprotection against ischemia and reperfusion injury. Since the early 1970s, there has been evidence that the size of a myocardial infarction co...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type:
doi:10.1177/1074248411402501
更新日期:2011-09-01 00:00:00
abstract:BACKGROUND:The administration of aspirin is traditionally discontinued prior to coronary artery bypass grafting (CABG), given a potential risk of excessive postoperative bleeding. Few studies have previously suggested the benefits of continuing aspirin until the time of surgery. The primary aim of this review is to eva...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章,meta分析,评审
doi:10.1177/1074248413509026
更新日期:2014-01-01 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::Low-molecular-weight heparins (LMWHs) endure as important drugs for thromboprophylaxis. Although clinical use relies on the subcutaneous (SC) route, our previous studies show that single-dose orally administered LMWHs have antithrombotic activity. Since thromboprophylaxis requires long-term treatment, we examined anti...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248416667601
更新日期:2017-05-01 00:00:00
abstract:BACKGROUND:Omapatrilat has potent enzymatic inhibitory effects on the angiotensin-converting enzyme and neutral endopeptidase. The prolonged effects of this inhibition on systemic and regional hemodynamics, cardiovascular mass, and hydroxyproline concentration in spontaneously hypertensive rats were studied. The contri...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/107424840300800210
更新日期:2003-06-01 00:00:00
abstract:BACKGROUND:Limited data are available on the clinical management of atrial fibrillation (AF) and its outcomes from an Australian perspective. OBJECTIVE:To describe the appropriateness of antithrombotic prescribing for patients who presented with a diagnosis of AF to the Hawkesbury St John of God Hospital, New South Wa...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248418786264
更新日期:2019-01-01 00:00:00
abstract::BACKGROUND: The effects of sotalol on the 24-hour profile of the QT interval relative to that of the heart rate (HR) may be helpful in determining the time course of the drug's action in controlling cardiac arhythmias. This has not been previously determined. Thus, the objective of the current study was to evaluate th...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/107424849900400104
更新日期:1999-01-01 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::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:BACKGROUND:Allogeneic cardiosphere-derived cells (CDCs) exert cardioprotective effects when administered intracoronarily after reperfusion in animal models of acute myocardial infarction (AMI). The "no-reflow" phenomenon develops rapidly post-reperfusion and may undermine the efficacy of cell therapy, due to poor cell ...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248420941672
更新日期:2021-01-01 00:00:00
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::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:Fluvastatin is an inhibitor of the 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase, effectively lowering serum cholesterol concentrations. A high-performance liquid chromatography (HPLC) assay was developed that determined the pharmacokinetics of fluvastatin in healthy individuals after administrat...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 临床试验,杂志文章
doi:10.1177/107424840100600205
更新日期:2001-04-01 00:00:00
abstract::α-Lipoic acid (LA) has been shown to offer protection against ischemia-reperfusion injury (IRI) in multiple organ systems. N-[(R)-1,2-dithiolane-3-pentanoyl]-L-glutamyl-L-alanine (CMX-2043), a novel analogue of LA, was studied as part of a preclinical development program intended to identify safe and efficacious drug ...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248416640118
更新日期:2016-11-01 00:00:00
abstract::Although COVID-19 is viewed primarily as a respiratory disease, cardiovascular risk factors and disease are prevalent among infected patients and are associated with worse outcomes. In addition, among multiple extra-pulmonary manifestations, there has been an increasing recognition of specific cardiovascular complicat...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248420982736
更新日期:2020-12-17 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Myocardial hypertrophy is a common clinical finding leading to heart failure and sudden death. Mitofusin 2 (Mfn2), a hyperplasia suppressor protein, is downregulated in hypertrophic heart. This study examined the role of Mfn2 in myocardial hypertrophy and its potential signal pathway. METHODS...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248410385683
更新日期:2011-06-01 00:00:00
abstract::Myocardial ischemic injury and cardioprotection are characterized by a cascade of molecular changes, which includes gene expression, protein expression, protein localization, interactions, and posttranslational modifications (PTMs). A systems biology approach allows the study of these genes and proteins on a large sca...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章,评审
doi:10.1177/1074248411415855
更新日期:2011-09-01 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::Cardiovascular diseases are one of the most common causes of death in humans and are responsible for billions of dollars in health care expenditures. As the molecular basis of cardiac diseases continues to be explored, there remains the hope for identification of more effective therapeutics. MicroRNAs (miRNAs) are rec...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章,评审
doi:10.1177/1074248414552902
更新日期:2015-03-01 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:BACKGROUND:Renalase is a protein that can regulate sympathetic nerve activity by metabolizing catecholamines, while redundant catecholamines are thought to contribute to atherosclerosis (As). Catecholamine release can be facilitated by angiotensin (Ang) II by binding to Ang II type 1 (AT1) receptors. Valsartan, a speci...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248415575967
更新日期:2015-09-01 00:00:00
abstract::BACKGROUND: Conventional microelectrode techniques were used to compare the concentration-dependent effects of vesnarinone (0.1-100 µM) and amrinone (1 µM-1 mM) on action potential duration (APD) and developed force in both isolated dog ventricular trabeculae and Purkinje strands. METHODS AND RESULTS: Both drugs incre...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/107424849600100207
更新日期:1996-04-01 00:00:00
abstract::Phosphodiesterase inhibitors as inodilators in heart failure are associated with promotion of arrhythmias. Calcium sensitizers have been proposed for the treatment of severe decompensated heart failure. The effect of levosimendan, a calcium sensitizer, and milrinone, a phosphodiesterase inhibitor, on ventricular arrhy...
journal_title:Journal of cardiovascular pharmacology and therapeutics
pub_type: 杂志文章
doi:10.1177/1074248406289286
更新日期:2006-06-01 00:00:00