Abstract：
:The left ansa subclavia was stimulated at supramaximal intensity at a frequency of Hz in open-chest, anaesthetized dogs for periods of about 10 min. Arterial blood pressure, myocardial contractile force, and coronary sinus blood flow reached peak values after 1 or 2 min of stimulation, and then declined gradually throughout the remainder of stimulation. In hearts that averaged 159 +/- 10 (SEM) g, the norepinephrine (NE) overflow rose to a peak value of 470 +/- 128 ng/min at the end of 1 min of sympathetic stimulation in the control animals. By the 10th min of stimulation, the NE overflow had diminished to 97 +/- 24 ng/min. In animals pretreated with cocaine (5 mg/kg) or with phenoxybenzamine (5 mg/kg), the peak NE overflow rates were 288 +/- 62 and 980 +/- 148 mg/min, respectively, and the rate of NE overflow declined to levels of 104 +/- 39 and 128 +/- 30 ng/min, respectively by the 10th min of stimulation. Since there was a profound, progressive diminution in the rate of NE overflow during sustained cardiac sympathetic stimulation regardless of whether or not NE reuptake was suppressed, it is concluded that the reduction in NE overflow reflects a curtailment of neuronal release of NE rather than an acceleration of reuptake.
journal_name
Cardiovasc Resjournal_title
Cardiovascular researchauthors
Levy MN,Blattberg Bdoi
10.1093/cvr/10.5.549subject
Has Abstractpub_date
1976-09-01 00:00:00pages
549-55issue
5eissn
0008-6363issn
1755-3245journal_volume
10pub_type
杂志文章abstract：STUDY OBJECTIVE:The aim was to study the interactions between pulmonary capillary wedge pressure (an estimate of left atrial pressure), left atrial dimension, and atrial natriuretic factor during evolving heart failure. DESIGN:Sequential simultaneous measurements of haemodynamic variables, left atrial dimension, and p...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1093/cvr/24.7.570
更新日期：1990-07-01 00:00:00
abstract：OBJECTIVE:The aim was to determine if either heparin or N-acetylheparin could reduce the extent of myocardial injury resulting from 90 min of coronary artery occlusion and 6 h of reperfusion in the anaesthetised dog. METHODS:Heparin or N-acetylheparin was given in three repeated intravenous doses of 2 mg.kg-1. Drug or...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：
更新日期：1995-05-01 00:00:00
abstract：:The hypothesis that cardiac surgery to interrupt accessory pathways also interrupts autonomic nerves to the canine ventricle and to the atrioventricular node was tested in four groups of dogs. Group 1 (n = 6) underwent dissection of the atrioventricular fat tissue and cryolesion created by application of a cryoprobe a...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1093/cvr/22.3.163
更新日期：1988-03-01 00:00:00
abstract：STUDY OBJECTIVE:The objectives were (a) to describe the effects of vasoactive drugs in normal rats upon cardiovascular function assessed by computing aortic haemodynamic power and input impedance, each separated into their component parts, and (b) to study the relationship between left ventricular pulsatile power outpu...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1093/cvr/25.11.923
更新日期：1991-11-01 00:00:00
abstract：:Eighty-one consecutive patients representing a wide clinical spectrum were studied to assess the degree of limitation of the atrial extrastimulus technique for measurement of atrioventricular node refractoriness; and, to determine the relationship between conductivity and functional refractoriness of the atrioventricu...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1093/cvr/16.8.457
更新日期：1982-08-01 00:00:00
abstract：:Since increases in blood pressure may be effectively controlled by hydraulic feedback by reducing the venous return through the inferior vena cava in proportion to the blood pressure this principle was applied using a totally implantable extravascular system consisting of a periaortic blood pressure sensor and a peric...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1093/cvr/21.5.337
更新日期：1987-05-01 00:00:00
abstract：AIMS:Hypertension is accompanied by structural remodelling of vascular extracellular matrix (ECM). Tissue inhibitor of metalloproteinases (TIMPs) inhibits matrix metalloproteinases (MMPs) that degrade the matrix structural proteins. In response to a hypertensive stimulus, the balance between MMPs and TIMPs is altered. ...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1093/cvr/cvt067
更新日期：2013-06-01 00:00:00
abstract：OBJECTIVE:We determine if action potential duration (APD) shortening and cardioprotection are separable phenomena in ATP-sensitive potassium channel (KATP) openers which protect ischemic myocardium via a glyburide-reversible mechanism. METHODS:We determined the effect of the weakly vasodilating KATP opener, BMS-180448...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：
更新日期：1995-11-01 00:00:00
abstract：OBJECTIVE:Resveratrol, a natural phytoalexin compound, is present in grapes and wine, and it can produce vasorelaxation. However, little is known of its mechanisms of action on ionic currents in endothelial cells. METHODS:The effect of resveratrol on Ca(2+)-activated K+ currents in an endothelial cell line (HUV-EC-C) ...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1016/s0008-6363(99)00397-1
更新日期：2000-03-01 00:00:00
abstract：:The progress made in our understanding of the pathophysiology and treatment of congestive heart failure (CHF) would not have been possible without a number of animal models of heart failure and hypertrophy, each one having unique advantages as well as disadvantages. The species and interventions used to create CHF dep...
journal_title：Cardiovascular research
pub_type： 杂志文章,评审
doi：10.1016/s0008-6363(98)00110-2
更新日期：1998-07-01 00:00:00
abstract：:Exogenous angiotensin II causes noradrenaline supersensitivity in rat mesenteric vasculature preparations. The noradrenaline supersensitivity of tissues from renal/salt hypertensive rats, with low plasma renin activity, is not caused by endogenous angiotensin II since it was unaffected by Sar1 Ileu8 angiotensin II. Di...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1093/cvr/10.2.232
更新日期：1976-03-01 00:00:00
abstract：AIMS:The risk of mortality from the coronavirus disease that emerged in 2019 (COVID-19) is increased by comorbidity from cardiovascular and pulmonary diseases. Air pollution also causes excess mortality from these conditions. Analysis of the first severe acute respiratory syndrome coronavirus (SARS-CoV-1) outcomes in 2...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1093/cvr/cvaa288
更新日期：2020-12-01 00:00:00
abstract：:The major limitation to antiarrhythmic drug therapy is the risk of arrhythmia promotion, or 'proarrhythmia.' This complication may be lethal, and greatly restricts the value of antiarrhythmic agents, particularly for arrhythmias without an intrinsic mortality risk, such as atrial fibrillation. In order for improved an...
journal_title：Cardiovascular research
pub_type： 杂志文章,评审
doi：10.1016/s0008-6363(97)00293-9
更新日期：1998-03-01 00:00:00
abstract：Aims:Hypertensive cardiac hypertrophy is associated with reduced coronary flow reserve, but its impact on coronary flow regulation and vasomotor function remains incompletely understood and requires further investigation. Methods and results:Left ventricular hypertrophy was induced in mice by transverse aortic coarcta...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1093/cvr/cvx103
更新日期：2017-09-01 00:00:00
abstract：OBJECTIVE:The present study investigated whether activation of phosphatidylinositol 3-kinase (PI3-kinase) is involved in the stimulation of hypertrophic growth of adult ventricular cardiomyocytes under alpha- or beta-adrenoceptor stimulation. METHODS:Adult ventricular rat cardiomyocytes were used either directly after...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1016/s0008-6363(98)00171-0
更新日期：1998-10-01 00:00:00
abstract：AIMS:In developing blood vessel networks, the overall level of vessel branching often correlates with angiogenic sprout initiations, but in some pathological situations, increased sprout initiations paradoxically lead to reduced vessel branching and impaired vascular function. We examine the hypothesis that defects in ...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1093/cvr/cvw091
更新日期：2016-07-01 00:00:00
abstract：AIMS:Cardiac hypertrophy is characterized by a shift in metabolic substrate utilization, but the molecular events underlying the metabolic remodelling remain poorly understood. We explored metabolic remodelling and mitochondrial dysfunction in cardiac hypertrophy and investigated the cardioprotective effects of choline...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1093/cvr/cvy217
更新日期：2019-03-01 00:00:00
abstract：:Angiotensin II (AII) plays a critical role in cardiac remodeling. This peptide promotes cardiac myocyte hypertrophy and cardiac fibroblast interstitial fibrotic changes associated with left ventricular hypertrophy, post myocardial infarction remodeling and congestive heart failure. AII mediates cardiac myocyte hypertr...
journal_title：Cardiovascular research
pub_type： 杂志文章,评审
doi：10.1016/s0008-6363(00)00044-4
更新日期：2000-05-01 00:00:00
abstract：OBJECTIVE:The aim was to investigate the effect of increased left ventricular filling pressure on the pulmonary vein flow (PVQ) pattern. METHODS:Pulmonary vein flow was recorded using an ultrasonic transit time flow meter in six anaesthetised dogs. Mean left atrial pressure was increased by stepwise volume loading fro...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1093/cvr/27.3.411
更新日期：1993-03-01 00:00:00
abstract：:Inherited arrhythmias are disorders caused by one or more genetic mutations that increase the risk of arrhythmia, which result in life-long risk of sudden death. These mutations either primarily perturb electrophysiological homeostasis (e.g. long QT syndrome and catecholaminergic polymorphic ventricular tachycardia), ...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1093/cvr/cvaa107
更新日期：2020-07-15 00:00:00
abstract：OBJECTIVES:Conduction of vasoconstrictor and vasodilator responses in the microcirculation involves electrical coupling through gap junction channels among cells of the vascular wall. The present study determined whether reported differences in the properties of conduction along the arterioles of the epithelial hamster...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1016/j.cardiores.2003.09.017
更新日期：2003-12-01 00:00:00
abstract：:One of the obstacles to a better understanding of the pathogenesis of human cardiomyopathies has been poor availability of heart-tissue samples at early stages of disease development. This has possibly changed by the advent of patient-derived induced pluripotent stem cell (hiPSC) from which cardiomyocytes can be deriv...
journal_title：Cardiovascular research
pub_type： 杂志文章,评审
doi：10.1093/cvr/cvv017
更新日期：2015-04-01 00:00:00
abstract：:Atherosclerosis is considered a to be multifactorial disease driven by inflammatory reactions. The process of inflammation also contributes to the pathogenesis of acute atherothrombotic events. C-reactive protein (CRP) is an acute phase protein and its concentration in serum reflects the inflammatory condition of the ...
journal_title：Cardiovascular research
pub_type： 杂志文章,评审
doi：10.1016/j.cardiores.2006.03.004
更新日期：2006-07-01 00:00:00
abstract：OBJECTIVE:We have attempted to demonstrate the induction of inducible nitric oxide synthase in human vascular tissue and define the capacity of different cytokines to induce this enzyme. METHODS:Segments of human arteries were stimulated with lipopolysaccharide (10 micrograms/ml), interleukin-1 beta (5 U/ml), tumor ne...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1016/s0008-6363(98)00054-6
更新日期：1998-06-01 00:00:00
abstract：:Papillary muscles isolated from the left ventricle of 17-20 day old Syrian hamsters with genetic cardiomyopathy (BIO 14.6 strain) were examined for their mechanophysiological response to the beta adrenoceptor agonist isoprenaline. The indices of isometric twitch for both myopathic and aged matched normal (BIO RB strai...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1093/cvr/20.8.609
更新日期：1986-08-01 00:00:00
abstract：:The structural basis for the development of congestive heart failure (CHF) is a maladaptive myocardial remodeling process which occurs secondarily to post-myocardial infarction (MI), hypertensive hypertrophy, or cardiomyopathy. Both cellular and extracellular factors are involved in the remodeling process and it is th...
journal_title：Cardiovascular research
pub_type： 杂志文章,评审
doi：10.1016/j.cardiores.2005.10.004
更新日期：2006-02-15 00:00:00
abstract：:Numerous epidemiological studies documented an inverse relationship between plasma high-density lipoprotein (HDL) cholesterol levels and the extent of atherosclerotic disease. However, clinical interventions targeting HDL cholesterol failed to show clinical benefits with respect to cardiovascular risk reduction, sugge...
journal_title：Cardiovascular research
pub_type： 杂志文章,评审
doi：10.1093/cvr/cvu136
更新日期：2014-08-01 00:00:00
abstract：:Severe sepsis and septic shock, which are among the most common causes of death in intensive care units worldwide, cause high morbidity, mortality, and social and economic costs. Therefore, developing successful therapies against sepsis is one of the most important challenges in critical care medicine. Death from sept...
journal_title：Cardiovascular research
pub_type： 杂志文章,评审
doi：10.1093/cvr/cvq317
更新日期：2011-02-15 00:00:00
abstract：OBJECTIVE:Previous investigations have shown the effectiveness of sustained intra- or extravascular administration of vascular endothelial growth factor (VEGF) in chronic myocardial ischemia in improvement of left ventricular function. The present investigations were undertaken in order to evaluate efficacy of a single...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1016/s0008-6363(98)00136-9
更新日期：1998-11-01 00:00:00
abstract：OBJECTIVE:Angiotensin II (ANG II) has recently been reported to increase inotropy in adult rabbit myocytes by a mechanism of alkalinization and consequent increased myofilament sensitivity to calcium. Accordingly, we tested the hypothesis that ANG II would have a greater inotropic effect during ischemic conditions than...
journal_title：Cardiovascular research
pub_type： 杂志文章
doi：10.1016/s0008-6363(96)00185-x
更新日期：1997-01-01 00:00:00
