Repolarization abnormalities and their arrhythmogenic consequences in porcine tachycardia-induced cardiomyopathy.

abstract：OBJECTIVES:To investigate the effect of alpha,beta(1) and beta(2) adrenergic receptor (AR) stimulation on coronary hemodynamics, myocardial oxygen consumption (M(v)O(2)) and metabolic substrate preference in advanced dilated cardiomyopathy (DCM). METHODS:We studied 19 conscious, instrumented dogs with pacing-induced D...

journal_title：Cardiovascular research

authors： Nikolaidis LA,Hentosz T,Doverspike A,Huerbin R,Stolarski C,Shen YT,Shannon RP

更新日期：2002-02-01 00:00:00

abstract：OBJECTIVE:The regulation of pulmonary prostacyclin synthesis is not completely understood. We tested the hypothesis that prostacyclin production is predominantly stimulated by hemodynamic factors, such as increased shear-stress, and is thus increased in rats with chronic hypoxic pulmonary hypertension. METHODS:To this...

journal_title：Cardiovascular research

authors： Blumberg FC,Lorenz C,Wolf K,Sandner P,Riegger GA,Pfeifer M

更新日期：2002-07-01 00:00:00

abstract：:Rupture of vulnerable atherosclerotic plaques leading to an atherothrombotic event is the primary driver of myocardial infarction and stroke. The ability to detect non-invasively the presence and evolution of vulnerable plaques could have a huge impact on the future identification and management of atherosclerotic car...

journal_title：Cardiovascular research

authors： MacAskill MG,Newby DE,Tavares AAS

更新日期：2019-12-01 00:00:00

abstract：OBJECTIVE:Exposure to anoxia has been reported to activate ATP-sensitive potassium (K+(ATP)) channels in isolated ventricular myocytes. We aimed to investigate the mechanisms underlying the anoxia-induced activation of K+(ATP) channels. METHODS:Guinea pig ventricular myocytes were isolated using collagenase digestion....

journal_title：Cardiovascular research

authors： Shigematsu S,Arita M

更新日期：1997-08-01 00:00:00

abstract：OBJECTIVE:Macrophage migration inhibitory factor (MIF), which plays a pivotal role in the control of inflammatory responses, was first characterized as a T-cell cytokine, but later was also found as a pituitary peptide released in response to infection and stress. However, MIF's role and expression in the myocardium ha...

journal_title：Cardiovascular research

authors： Takahashi M,Nishihira J,Shimpo M,Mizue Y,Ueno S,Mano H,Kobayashi E,Ikeda U,Shimada K

更新日期：2001-12-01 00:00:00

abstract：OBJECTIVE:Temporal effects of prolonged hypoxaemia and reoxygenation, on the systemic pulmonary and mesenteric circulations in newborn piglets, were investigated. METHODS:Two groups [control (n = 5), hypoxaemic (n = 7)] of 1-3 day old anaesthetised piglets were instrumented with ultrasound flow probes placed to measur...

journal_title：Cardiovascular research

authors： Cheung PY,Barrington KJ,Bigam DL

更新日期：1998-08-01 00:00:00

abstract：OBJECTIVE:The aim was to determine the relationship between the rate of reflow and vulnerability to reperfusion induced arrhythmias. METHODS:Isolated rat hearts, in which left and right coronary arteries were perfused independently, were subjected to transient (10 min) cessation of flow to the left coronary bed. Durin...

journal_title：Cardiovascular research

authors： Ibuki C,Hearse DJ,Avkiran M

更新日期：1992-04-01 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

authors： Nattel S

更新日期：1998-03-01 00:00:00

abstract：OBJECTIVES:Angiotensin converting enzyme (ACE) activity in the plasma does not change significantly with hypertension in two-kidney, one-clip hypertensive (2K-1C) rats. However, heart ACE activity and mRNA increase with hypertension. We measured the ACE activity and mRNA in hypertrophied hearts at different times after...

journal_title：Cardiovascular research

authors： Challah M,Nicoletti A,Arnal JF,Philippe M,Laboulandine I,Allegrini J,Alhenc-Gelas F,Danilov S,Michel JB

更新日期：1995-08-01 00:00:00

abstract：OBJECTIVE:Experimental evidence suggests that modulation of myocardial substrate metabolism can markedly affect the progression of chronic heart failure (HF). We tested whether the inhibition of carnitine palmitoyl transferase-I (CPT-I), the enzyme regulating mitochondrial fatty acid oxidation, slows left ventricular r...

journal_title：Cardiovascular research

authors： Lionetti V,Linke A,Chandler MP,Young ME,Penn MS,Gupte S,d'Agostino C,Hintze TH,Stanley WC,Recchia FA

更新日期：2005-06-01 00:00:00

abstract：OBJECTIVE:Lipoprotein lipase (LPL) mediated hydrolysis of circulating triglyceride (TG)-rich lipoproteins provides the heart with fatty acids. The present study was designed to investigate the influence of circulating TG and their lipolysis in facilitating translocation of LPL from the underlying cardiomyocyte cell sur...

journal_title：Cardiovascular research

authors： Pulinilkunnil T,Qi D,Ghosh S,Cheung C,Yip P,Varghese J,Abrahani A,Brownsey R,Rodrigues B

更新日期：2003-09-01 00:00:00

abstract：AIMS:KCNQ1 (alias KvLQT1 or Kv7.1) and KCNE1 (alias IsK or minK) co-assemble to form the voltage-activated K(+) channel responsible for I(Ks)-a major repolarizing current in the human heart-and their dysfunction promotes cardiac arrhythmias. The channel is a component of larger macromolecular complexes containing known...

journal_title：Cardiovascular research

authors： Nicolas CS,Park KH,El Harchi A,Camonis J,Kass RS,Escande D,Mérot J,Loussouarn G,Le Bouffant F,Baró I

更新日期：2008-08-01 00:00:00

abstract：OBJECTIVE:The aim was to estimate the relative contributions of the various intracellular and sarcolemmal systems to the relaxation of the systolic calcium transient. METHODS:The experiments were performed on isolated rat ventricular myocytes. The cells were loaded with the fluorescent indicator indo-1 in order to mea...

journal_title：Cardiovascular research

authors： Negretti N,O'Neill SC,Eisner DA

更新日期：1993-10-01 00:00:00

abstract：AIMS:Doxorubicin (DOX) is a widely used and effective anti-cancer therapeutic. DOX treatment is associated with both acute and late onset cardiotoxicity, limiting its overall efficacy. Here, the impact of cardiomyocyte cell cycle activation was examined in a juvenile model featuring aspects of acute and late onset DOX ...

journal_title：Cardiovascular research

authors： Zhu W,Reuter S,Field LJ

更新日期：2019-04-15 00:00:00

abstract：AIMS:The aim of this study was to explore meprinα-mediated transactivation of the epidermal growth factor receptor (EGFR) and reactive oxygen species (ROS) production in macrophages. METHODS AND RESULTS:Accelerated atherosclerotic lesions were established by administration of a high-fat diet in apolipoprotein E-defici...

journal_title：Cardiovascular research

authors： Gao P,Wang XM,Qian DH,Qin ZX,Jin J,Xu Q,Yuan QY,Li XJ,Si LY

更新日期：2013-03-01 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：:Inorganic nitrate from dietary and endogenous sources is emerging as a substrate for in vivo generation of nitric oxide (NO) and other reactive nitrogen oxides. Dietary amounts of nitrate clearly have robust NO-like effects in humans, including blood pressure reduction, inhibition of platelet aggregation, and vasoprot...

journal_title：Cardiovascular research

authors： Lundberg JO,Carlström M,Larsen FJ,Weitzberg E

更新日期：2011-02-15 00:00:00

abstract：:The therapeutic potential of Hedgehog (Hh) signalling agonists for vascular diseases is of growing interest. However, molecular and cellular mechanisms underlying the role of the Hh signalling in vascular biology remain poorly understood. AIMS:The purpose of the present paper is to clarify some conflicting literature...

journal_title：Cardiovascular research

authors： Hollier PL,Chapouly C,Diop A,Guimbal S,Cornuault L,Gadeau AP,Renault MA

更新日期：2020-10-16 00:00:00

abstract：AIMS:Atherogenesis, evolution of plaque, and outcomes following endovascular intervention depend heavily on the unique vascular architecture of each individual. Patient-specific, multiscale models able to correlate changes in microscopic cellular responses with relevant macroscopic flow, and structural conditions may h...

journal_title：Cardiovascular research

authors： Martorell J,Santomá P,Kolandaivelu K,Kolachalama VB,Melgar-Lesmes P,Molins JJ,Garcia L,Edelman ER,Balcells M

更新日期：2014-07-01 00:00:00

abstract：STUDY OBJECTIVE:The aim was to determine if the adaptational process of the cardiac calcium channel to pressure overload observed in rat heart also occurs in species characterised by a higher sensitivity to external calcium than in the rat. This adaptation occurs via a maintained density of dihydropyridine receptors an...

journal_title：Cardiovascular research

authors： Primot I,Mayoux E,Oliviero P,Charlemagne D

更新日期：1991-10-01 00:00:00

abstract：AIMS:The heart contains c-kit(+) progenitors that maintain cardiac homeostasis. Cardiac c-kit(+) cells are multipotent and give rise to myocardial, endothelial and smooth muscle cells, both in vitro and in vivo. C-kit(+) cells have been thoroughly investigated for their stem cell activity, susceptibility to stress cond...

journal_title：Cardiovascular research

authors： Gambini E,Pompilio G,Biondi A,Alamanni F,Capogrossi MC,Agrifoglio M,Pesce M

更新日期：2011-02-01 00:00:00

abstract：OBJECTIVE:To assess the contribution of the Na, K pump current (I(p)) to the action potential duration (APD) and effective refractory period (ERP) in human atrial cells, and to investigate whether I(p) contributes to the changes in APD and ERP associated with chronic atrial fibrillation (AF). METHODS:Action potentials...

journal_title：Cardiovascular research

authors： Workman AJ,Kane KA,Rankin AC

更新日期：2003-09-01 00:00:00

abstract：:The static elastic properties of the aorta ad systolic blood pressure in the caudal artery have been measured in 55 spontaneously hypertensive rats of the AS strain. Animals were divided into five groups and treated from the age of 4 to 12 weeks as follows: (1) 0.25 mm silver clip positioned around the right renal art...

journal_title：Cardiovascular research

authors： Berry CL,Greenwald SE,Menahem N

更新日期：1981-07-01 00:00:00

abstract：OBJECTIVE:R 75,231, a potent and specific nucleoside transport inhibitor, largely prevents cardiac damage and death in catecholamine challenged rabbits. The major biochemical effect of nucleoside transport inhibition in ischaemic and reperfused myocardium is a prolonged accumulation of adenosine. The cardioprotection b...

journal_title：Cardiovascular research

authors： Van Belle H,Ver Donck K,Verheyen W

更新日期：1993-01-01 00:00:00

abstract：OBJECTIVE:The aim was to investigate how platelet activation during myocardial ischaemia can induce electrophysiological and arrhythmogenic effects, and examine the involvement of different platelet membrane receptors in producing these effects. METHODS:Transmembrane action potentials and electrograms were recorded fr...

journal_title：Cardiovascular research

authors： Flores NA,Goulielmos NV,Seghatchian MJ,Sheridan DJ

更新日期：1994-11-01 00:00:00

abstract：:To investigate the effects of sodium-potassium activated adenosine triphosphatase inhibition on central cardiovascular regulation a microinjection of ouabain was given into the hypothalamus of urethane anaesthetised rats. Doses of 0.01-1.0 micrograms per rat injected into the posterior hypothalamus produced a rise in ...

journal_title：Cardiovascular research

authors： Iyoda I,Takahashi H,Lee LC,Okajima H,Inoue A,Sasaki S,Takeda K,Yoshimura M,Ijichi H

更新日期：1986-04-01 00:00:00

abstract：AIMS:The TRPV1, transient receptor potential vanilloid type 1, agonist capsaicin is considered to be beneficial for cardiovascular health because it dilates coronary arteries through an endothelial-dependent mechanism and may slow atheroma progression. However, recent reports indicate that high doses of capsaicin may c...

journal_title：Cardiovascular research

authors： Hiett SC,Owen MK,Li W,Chen X,Riley A,Noblet J,Flores S,Sturek M,Tune JD,Obukhov AG

更新日期：2014-09-01 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：:Infarct size can be limited by reducing the determinants of infarct size or increasing collateral blood flow by treatment initiated before the ischaemic event. Reperfusion is the definitive treatment for permanently reducing infarct size and restoring some degree of contractile function to the affected myocardium. Inn...

journal_title：Cardiovascular research

authors： Granfeldt A,Lefer DJ,Vinten-Johansen J

更新日期：2009-07-15 00:00:00

abstract：OBJECTIVES:Saphenous vein graft failures, resulting from thrombosis and the abnormal proliferation, migration and apoptosis of vascular smooth muscle cells (VSMC) are major limitations of coronary artery bypass surgery. We investigated whether surgical trauma of human saphenous vein induces the early response gene c-fo...

journal_title：Cardiovascular research

authors： Galea J,Armstrong J,Francis SE,Cooper G,Crossman DC,Holt CM

更新日期：1999-11-01 00:00:00