Reperfusion damage: free radicals mediate delayed membrane changes rather than early ventricular arrhythmias.

abstract：:We tested the hypothesis that visualisation of defects on thallium-201 (201Tl) myocardial perfusion images (MPI) depends on the duration of the ischaemic state between 201Tl injection and the time of reperfusion of an occluded coronary artery. Praecordial imaging with a gamma camera was performed in 24 anaesthetised, ...

journal_title：Cardiovascular research

authors： Patterson RE,Halgash DA,Horowitz SF,Miceli K,Eng C,Goldsmith SJ

更新日期：1982-01-01 00:00:00

abstract：OBJECTIVE:To test the hypothesis that prolonged physical exercise induces long-lasting effects on blood pressure and heart rate we studied 17 endurance runners before and after the 1995 Sandia Wilderness Crossing Research Run (46 km of rocky trails, average altitude 2500 m). METHODS:We evaluated the response of the ca...

journal_title：Cardiovascular research

authors： Bernardi L,Passino C,Robergs R,Appenzeller O

更新日期：1997-05-01 00:00:00

abstract：OBJECTIVE:Myocardial contractility is enhanced in transgenic (TG) mice with cardiac-restricted overexpression of the alpha1A-adrenergic receptors (alpha1A-AR). We tested the hypothesis that this enhanced inotropy protects against dysfunction and remodeling after myocardial infarction (MI). METHODS:We subjected alpha1A...

journal_title：Cardiovascular research

authors： Du XJ,Gao XM,Kiriazis H,Moore XL,Ming Z,Su Y,Finch AM,Hannan RA,Dart AM,Graham RM

更新日期：2006-09-01 00:00:00

abstract：:The mechanical, haemodynamic, and energetic functions of isolated perfused working hearts from chronic alcoholic and control rats were studied. Male Long-Evans rats were fed a nutritionally-complete liquid diet containing 38% of daily calories as ethanol (isocaloric replacement with dextrin-maltose for controls) for 3...

journal_title：Cardiovascular research

authors： Segel LD,Rendig SV,Mason DT

更新日期：1979-03-01 00:00:00

abstract：OBJECTIVE:Inhibitors of poly (ADP-ribose) synthetase (PARS) activity reduce the infarct size caused by regional myocardial ischaemia and reperfusion in the rabbit and rat in vivo. The mechanism of action of these inhibitors is unclear. Here we investigate the effects of the PARS inhibitor 3-aminobenzamide (3-AB) on inf...

journal_title：Cardiovascular research

authors： Bowes J,McDonald MC,Piper J,Thiemermann C

更新日期：1999-01-01 00:00:00

abstract：AIM:To assess whether endothelin-1 (ET-1) induces the in vivo expression of inflammatory-related proteins, namely cyclooxygenase-2 (COX-2) and tissue factor, in the myocardium and circulating leukocytes of guinea-pigs. The involvement of platelets was also analyzed. METHODS:ET-1 (0.013 microg/min) was infused to male ...

journal_title：Cardiovascular research

authors： Molero L,Farré J,García-Mendez A,Jiménez Mateos-Caceres P,Carrasco Martín C,Millás I,Navarro F,Córdoba M,Casado S,López-Farré A

更新日期：2003-01-01 00:00:00

abstract：:The acute haemodynamic effects of taurine were studied in normal and in beta blocker (propranolol) or calcium antagonist (diltiazem) treated rabbits and in rabbits with experimentally produced chronic aortic regurgitation. The administration of taurine (25 mg.kg-1) did not affect heart rate and left ventricular end di...

journal_title：Cardiovascular research

authors： Awata N,Azuma J,Hamaguchi T,Tanaka Y,Ohta H,Takihara K,Harada H,Sawamura A,Kishimoto S

更新日期：1987-04-01 00:00:00

abstract：AIMS:Brugada syndrome (BrS) is an autosomal-inherited cardiac arrhythmia characterized by an ST-segment elevation in the right precordial leads of the electrocardiogram and an increased risk of syncope and sudden death. SCN5A, encoding the cardiac sodium channel Na(v)1.5, is the main gene involved in BrS. Despite the f...

journal_title：Cardiovascular research

authors： Clatot J,Ziyadeh-Isleem A,Maugenre S,Denjoy I,Liu H,Dilanian G,Hatem SN,Deschênes I,Coulombe A,Guicheney P,Neyroud N

更新日期：2012-10-01 00:00:00

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

authors： Moe GW,Angus C,Howard RJ,De Bold AJ,Armstrong PW

更新日期：1990-07-01 00:00:00

abstract：:The intrinsic ability of resistance arteries to respond to transmural pressure is the single most important determinant of their function. Despite an ever-growing catalogue of signalling pathways that underlie the myogenic response, it remains an enigmatic mechanism. The myogenic response's mechanistic diversity has l...

journal_title：Cardiovascular research

authors： Lidington D,Schubert R,Bolz SS

更新日期：2013-03-01 00:00:00

abstract：OBJECTIVES:Elevated systemic arterial blood pressure is associated with left ventricular hypertrophy and fibrosis. It has been suggested that both circulating and local myocardial renin-angiotensin systems play a role in mediating these responses. Here we describe the natural history of ventricular hypertrophy and fibr...

journal_title：Cardiovascular research

authors： Bishop JE,Kiernan LA,Montgomery HE,Gohlke P,McEwan JR

更新日期：2000-07-01 00:00:00

abstract：OBJECTIVE:The aim was to assess the significance of polymorphonuclear leucocytes on the myocardial capillary permeability to a small hydrophilic indicator, on the vascular tone of the resistance vessels, and on contractile function following ischaemia and reperfusion. METHODS:Open chest, anaesthetised dogs were random...

journal_title：Cardiovascular research

authors： Svendsen JH,Hansen PR,Ali S,Baandrup U,Haunsø S

更新日期：1993-07-01 00:00:00

abstract：:An oscillatory current (Ios) can be recorded after depolarising clamps of a given amplitude and duration. To determine whether Ios depends on other currents activated during the clamp, the Ios was investigated in the absence and in the presence of 4-aminopyridine (4-AP) and cesium (Cs). The following results were obta...

journal_title：Cardiovascular research

authors： Mugelli A

更新日期：1982-11-01 00:00:00

abstract：OBJECTIVE:To study the effect of cardiac contraction on left coronary artery pressure-flow relations at different vascular volumes and to compare these relations in the beating heart with those in the heart arrested in systole and diastole. METHODS:Maximally vasodilated, Tyrode perfused, rabbit hearts (n = 6) with an ...

journal_title：Cardiovascular research

authors： Sipkema P,Takkenberg JJ,Zeeuwe PE,Westerhof N

更新日期：1998-10-01 00:00:00

abstract：AIMS:Our aim was to determine whether the repeated, binge administration of 3,4-methylenedioxymethamphetamine (ecstasy; MDMA) produces structural and/or functional changes in the myocardium that are associated with oxidative stress. METHODS AND RESULTS:Echocardiography and pressure-volume conductance catheters were us...

journal_title：Cardiovascular research

authors： Shenouda SK,Lord KC,McIlwain E,Lucchesi PA,Varner KJ

更新日期：2008-09-01 00:00:00

abstract：:The theoretical possibilities and the practical limitations of the Xenon-133 (133Xe) method for the study of regional myocardial perfusion in man are discussed. The techniques for data acqusition and processing developed over the past 5 years are described in detail. Illustrative examples of experimental findings are ...

journal_title：Cardiovascular research

authors： Maseri A,L'abbate A,Michelassi C,Pesola A,Pisani P,Marzilli M,De Nes M,Mancini P

更新日期：1977-07-01 00:00:00

abstract：:Postextrasystolic potentiation was studied by means of a catheter-tip manometer in patients with and without cardiomyopathy. The results imply that the enhancement of the left ventricular contraction is increased in patients with cardiomyopathy. ...

journal_title：Cardiovascular research

authors： Kvasnicka J,Liander B,Broman H,Varnauskas E

更新日期：1975-05-01 00:00:00

abstract：OBJECTIVE:The aim was to examine ventricular brain natriuretic peptide (B-type natriuretic peptide, BNP) gene expression and to determine its relationship with ventricular BNP and circulating BNP levels in paediatric cardiac transplant recipients, over a three year period after transplantation. METHODS:Total RNA extra...

journal_title：Cardiovascular research

authors： Ationu A,Sorensen K,Whitehead B,Singer D,Burch M,Carter ND

更新日期：1993-12-01 00:00:00

abstract：:Twenty patients who had suffered myocardial infarction within the previous 3 to 13 days performed face immersion with breath-holding. The maximum reduction in heart rate was 17 +/- 9 beats-min--1 (mean +/- SD). When compared with 24 patients without evidence ischaemic heart disease, they behaved more like younger pati...

journal_title：Cardiovascular research

authors： Gooden BA,Holdstock G,Hampton JR

更新日期：1978-04-01 00:00:00

abstract：OBJECTIVES:M cells have been described in many mammalian species. They are thought to be relevant for the genesis of long QT intervals, afterdepolarizations and for dispersion in action potential duration and in repolarization time. Their role in the human heart is subject to debate. METHODS:We simulated action potent...

journal_title：Cardiovascular research

authors： Conrath CE,Wilders R,Coronel R,de Bakker JM,Taggart P,de Groot JR,Opthof T

更新日期：2004-05-01 00:00:00

abstract：AIMS:Smad7 plays a negative regulatory role in many inflammatory diseases, but its effect on hypertensive disease remains unknown. The present study tested the hypothesis that overexpression of Smad7 may have therapeutic potential for angiotensin II (Ang II)-mediated hypertensive cardiac remodelling. METHODS AND RESUL...

journal_title：Cardiovascular research

authors： Wei LH,Huang XR,Zhang Y,Li YQ,Chen HY,Yan BP,Yu CM,Lan HY

更新日期：2013-09-01 00:00:00

abstract：AIMS:Mast cells participate importantly in abdominal aortic aneurysms (AAAs) by releasing inflammatory cytokines to promote vascular cell protease expression and arterial wall remodelling. Mast cells accumulate in AAA lesions during disease progression, but the exact chemokines by which mast cells migrate to the site o...

journal_title：Cardiovascular research

authors： Zhang J,Chen H,Liu L,Sun J,Shi MA,Sukhova GK,Shi GP

更新日期：2012-12-01 00:00:00

abstract：AIMS:Peroxisome proliferator-activated receptors (PPARs) are members of the nuclear receptor superfamily of ligand-activated transcriptional regulators. PPARdelta has an established role in metabolism, wound healing, and angiogenesis. However, little is known about its function in endothelial homeostasis. We investigat...

journal_title：Cardiovascular research

authors： Ali F,Ali NS,Bauer A,Boyle JJ,Hamdulay SS,Haskard DO,Randi AM,Mason JC

更新日期：2010-03-01 00:00:00

abstract：OBJECTIVE:Migration and proliferation of arterial smooth muscle cells are critical responses during restenosis after balloon angioplasty. We investigated the changes in the expression of Ca(2+) channels and dystrophin, two determinants of contraction, after balloon injury of rat aortas. METHODS:Proliferation and migra...

journal_title：Cardiovascular research

authors： Quignard JF,Harricane MC,Ménard C,Lory P,Nargeot J,Capron L,Mornet D,Richard S

更新日期：2001-01-01 00:00:00

abstract：OBJECTIVE:Atrial remodeling contributes to the maintenance of atrial fibrillation (AF) in several cardiac disorders. There is evidence that angiotensin-converting enzyme (ACE) inhibitors reduce the prevalence of AF in patients with congestive heart failure (CHF). There have been no studies performed to assess the effec...

journal_title：Cardiovascular research

authors： Shi Y,Li D,Tardif JC,Nattel S

更新日期：2002-05-01 00:00:00

abstract：OBJECTIVE:It has been proposed that human immunodeficiency virus (HIV) infection-induced inflammatory environment may contribute to the pathogenesis of cardiovascular diseases. Recent studies have also demonstrated the potential role of estrogen as therapeutic agents in the prevention or treatment of cardiovascular dis...

journal_title：Cardiovascular research

authors： Lee YW,Eum SY,Nath A,Toborek M

更新日期：2004-07-01 00:00:00

abstract：OBJECTIVES:Early thrombolysis can reduce infarct size and enhance the long term recovery of contractile function after acute myocardial infarction. These benefits of early reperfusion may be confounded, however, by platelet mediated reocclusion after initial lysis, and "reperfusion injury" mediated by oxygen derived fr...

journal_title：Cardiovascular research

authors： Przyklenk K,Kloner RA

更新日期：1993-06-01 00:00:00

abstract：OBJECTIVE:In heart failure (HF), the generation of reactive oxygen species (ROS) is enhanced. It was shown that failing cardiac myocytes are more susceptible to ROS-induced damage, possibly due to increased expression of the sarcolemmal Na-Ca exchanger (NCX). METHODS:We investigated the consequences of increased expre...

journal_title：Cardiovascular research

authors： Wagner S,Seidler T,Picht E,Maier LS,Kazanski V,Teucher N,Schillinger W,Pieske B,Isenberg G,Hasenfuss G,Kögler H

更新日期：2003-11-01 00:00:00

abstract：OBJECTIVES:5-Hydroxytryptamine (5-HT) has a wide range of vascular effects mediated via specific receptors and it has been suggested to be a mediator in ischemic heart disease. The aim of the present study was to localise the 5-HT receptors within the vessel wall. METHODS:Epicardial coronary arteries obtained from pat...

journal_title：Cardiovascular research

authors： Dahm PL,Bodelsson M,Törnebrandt K,Muddle JR,Sykes RM,Yacoub M,Dashwood MR

更新日期：1996-05-01 00:00:00

abstract：:To define the interactions between blood and endocardium damaged by lactic acid, the left ventricles of 48 isolated continuously perfused and beating hearts were exposed for 0-4 hours to Krebs Henseleit buffer (KHB) with or without 33 mumol.ml-1 of lactic acid (pH 6.4). After excising its apex, the left ventricle was ...

journal_title：Cardiovascular research

authors： Carter G,Gavin JB

更新日期：1989-06-01 00:00:00