abstract：OBJECTIVES:We studied the effects of chronic left coronary artery ligation on cardiac structure and function in the mouse. METHODS:Morphometric studies of the left ventricle were performed in coronary artery-ligated and sham-operated animals at one, two, three and five weeks after surgery. The fraction of DNA-synthesi...

journal_title：Cardiovascular research

authors： Lutgens E,Daemen MJ,de Muinck ED,Debets J,Leenders P,Smits JF

更新日期：1999-03-01 00:00:00

abstract：OBJECTIVE:The aim of this study was to evaluate the possible role of prostacyclin (PGI2) in the pathogenesis of hypertension in spontaneously hypertensive rats (SHR). METHODS:Measurement of mRNA and protein levels of PGH synthase (PGHS)-1, PGI2 synthase and the PGI2 receptor, in the thoracic aorta was performed in SHR...

journal_title：Cardiovascular research

authors： Numaguchi Y,Harada M,Osanai H,Hayashi K,Toki Y,Okumura K,Ito T,Hayakawa T

更新日期：1999-03-01 00:00:00

abstract：OBJECTIVE:Vascular endothelial growth factor (VEGF), secreted by vascular cells and a variety of tumour cells, is a potent angiogenic factor. Since nitric oxide (NO) seems to play a key role in the VEGF-induced proliferation of endothelial cells, the aim of the present study was to determine whether VEGF stimulates end...

journal_title：Cardiovascular research

authors： Bouloumié A,Schini-Kerth VB,Busse R

更新日期：1999-03-01 00:00:00

abstract：:Acute coronary syndromes result from fissure, erosion or rupture of a vulnerable atherosclerotic plaque. The characteristics of a vulnerable plaque include a large lipid pool, an abundance of inflammatory cells and mediators, a reduced smooth muscle cell and collagen content and a thin overlying fibrous cap. Potential...

journal_title：Cardiovascular research

authors： Rabbani R,Topol EJ

更新日期：1999-02-01 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：OBJECTIVE:The mechanism of spontaneous myogenic tone was investigated in isolated arteriolar segments. METHODS:Arterioles were isolated from rat cremaster muscle. Segments were endothelium-denuded and mounted in a pressure myograph at 75 mmHg. Under this condition, segments spontaneously constricted from a passive dia...

journal_title：Cardiovascular research

authors： Bakker EN,Kerkhof CJ,Sipkema P

更新日期：1999-01-01 00:00:00

abstract：OBJECTIVE:A circadian rhythm of blood pressure has been demonstrated both in subjects who are physically active during the day and in those confined to bed. The study of the circadian rhythm of arterial flow and peripheral resistance, on the other hand, is limited to pioneer experiments. This paper is aimed at demonstr...

journal_title：Cardiovascular research

authors： Casiglia E,Pizziol A,Piacentini F,Biasin R,Onesto C,Tikhonoff V,Prati R,Palatini P,Pessina AC

更新日期：1999-01-01 00:00:00

abstract：:Although researchers in radiation and cancer biology have known about the existence of free radicals and their potential role in pathobiology for several decades, cardiac biologists only began to take notice of these noxious species in the 1970s. Exponential growth of free radical research occurred after the discovery...

journal_title：Cardiovascular research

authors： Singal PK,Khaper N,Palace V,Kumar D

更新日期：1998-12-01 00:00:00

abstract：OBJECTIVE:Previously we observed that a large reduction in infarct size was attained by cooling the risk region of the heart, either before or early after the onset of a 30-min coronary artery occlusion. While this is a standard duration of ischemia used in the rabbit model of infarction, it may not reflect the situati...

journal_title：Cardiovascular research

authors： Hale SL,Kloner RA

更新日期：1998-12-01 00:00:00

abstract：CONDENSED ABSTRACT:We analyzed actomyosin cross-bridge kinetics in human atrial and ventricular muscle strip preparations by using sinusoidal length changes from 0.1 to 60 Hz. The minimum stiffness frequency was higher in atrial than in ventricular human myocardium and lower in failing than in non-failing left ventricu...

journal_title：Cardiovascular research

authors： Ruf T,Schulte-Baukloh H,Lüdemann J,Posival H,Beyersdorf F,Just H,Holubarsch C

更新日期：1998-12-01 00:00:00

abstract：OBJECTIVE:The aim of this work was to compare the effects of supplementation of rat chow diet with potassium (K+) and whey mineral concentrate (Whey), a diet rich in milk minerals, on blood pressure and arterial responses in vitro in spontaneously hypertensive rats (SHR). METHODS:Thirty young SHR and twenty Wistar-Kyo...

journal_title：Cardiovascular research

authors： Wu X,Tolvanen JP,Hutri-Kähönen N,Kähönen M,Mäkynen H,Korpela R,Ruskoaho H,Karjala K,Pörsti I

更新日期：1998-11-01 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

authors： Lopez JJ,Laham RJ,Stamler A,Pearlman JD,Bunting S,Kaplan A,Carrozza JP,Sellke FW,Simons M

更新日期：1998-11-01 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

authors： Schlüter KD,Goldberg Y,Taimor G,Schäfer M,Piper HM

更新日期：1998-10-01 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：OBJECTIVE:The vasoconstrictor effect of endothelins (ET) is mediated by endothelin A (ETA) and endothelin B (ETB) receptors. Furthermore, ETB receptor stimulation results in release of vasodilators. Hence, ETA receptor antagonists should attenuate ET-mediated vasoconstriction. The aim of the present study was to evalua...

journal_title：Cardiovascular research

authors： Zhang Y,Oliver JR,Horowitz JD

更新日期：1998-09-01 00:00:00

abstract：OBJECTIVE:Inhibition by endothelin antagonist is a potential therapy in heart failure. However, the effect of endothelin inhibition during the development of heart failure has not been evaluated. The goal of our study was to examine the acute hemodynamic effects of the mixed endothelin receptor antagonist bosentan in t...

journal_title：Cardiovascular research

authors： Choussat R,Hittinger L,Barbe F,Maistre G,Carayon A,Crozatier B,Su J

更新日期：1998-09-01 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:To determine the effect of acute left ventricular dilatation on refractoriness in normal hearts. METHODS:During sustained ventricular fibrillation (VF) in isolated perfused hearts, recording of local activation time yields VF intervals which provide an index of local refractoriness. Simultaneous measurement ...

journal_title：Cardiovascular research

authors： Burton FL,Cobbe SM

更新日期：1998-08-01 00:00:00

abstract：:The isolated perfused heart has been used increasingly during the last decade as a model for identifying actions of drugs on ventricular fibrillation (VF) induced by myocardial ischaemia. In addition, it has been used to explore the mechanisms responsible for the initiation and maintenance of VF, the concept of endoge...

journal_title：Cardiovascular research

authors： Curtis MJ

更新日期：1998-07-01 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

authors： Hasenfuss G

更新日期：1998-07-01 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

authors： Chester AH,Borland JA,Buttery LD,Mitchell JA,Cunningham DA,Hafizi S,Hoare GS,Springall DR,Polak JM,Yacoub MH

更新日期：1998-06-01 00:00:00

abstract：OBJECTIVE:Recent studies indicate that endothelial type nitric oxide synthase (NOS3) modulates cardiac systolic and diastolic function and the inotropic responsiveness to beta-adrenergic agonists, and may affect myocardial oxygen consumption. Although NOS3 is a constitutive protein, its levels of expression can be modi...

journal_title：Cardiovascular research

authors： Bayraktutan U,Yang ZK,Shah AM

更新日期：1998-06-01 00:00:00

abstract：OBJECTIVE:Polymorphic ventricular tachycardias (PVT) occur spontaneously in canine hearts under the combination of D-sotalol (S), bradycardia and phenylephrine (PE). We investigated the hypotheses that: (1) the activation patterns of the initial PVT beats would be consistent with an origin in the ventricular conduction...

journal_title：Cardiovascular research

authors： Derakhchan K,Cardinal R,Brunet S,Klug D,Pharand C,Kuś T,Sasyniuk BI

更新日期：1998-06-01 00:00:00

abstract：BACKGROUND:Alkalinizing agents reverse cardiotoxicity of a variety of sodium channel blockers, including tricyclic antidepressants, but their mechanisms of action are poorly understood. PURPOSE:To establish the mechanisms by which alkalinization diminishes the sodium channel blocking action of imipramine. METHODS:The...

journal_title：Cardiovascular research

authors： Bou-Abboud E,Nattel S

更新日期：1998-05-01 00:00:00

abstract：OBJECTIVE:Effective endogenous fibrinolysis requires rapid release of endothelial tissue plasminogen activator (t-PA). Using the nitric oxide synthase inhibitor, L-NG-monomethylarginine (L-NMMA), we examined the contribution of endogenous nitric oxide to substance P-induced t-PA release in vivo in man. METHODS:Blood f...

journal_title：Cardiovascular research

authors： Newby DE,Wright RA,Dawson P,Ludlam CA,Boon NA,Fox KA,Webb DJ

更新日期：1998-05-01 00:00:00

abstract：OBJECTIVES:We measured the uptake of technetium-99m tetrofosmin (99m Tc) and thallium-201 (201 TI) in areas of healed transmural myocardial infarction and in the regions of acute peri-infarction ischemia. METHODS:Anesthetised pigs with a 1-month old transmural infarction elicited by permanent ligature of the left ante...

journal_title：Cardiovascular research

authors： Cinca J,Garcia-Burillo A,Carreño A,Castell J,Warren M,Candell-Riera J,Domingo A,Soler-Soler J

更新日期：1998-04-01 00:00:00

abstract：OBJECTIVE:Mechanoelectric Feedback, a mechanical intervention inducing an electrical change, is gaining credence as a cause of cardiac arrhythmia in the clinical situation. However, the precise mechanism is unknown. To elucidate this we investigated mechanical and chemical modulation of stretch-induced premature ventri...

journal_title：Cardiovascular research

authors： Dick DJ,Lab MJ

更新日期：1998-04-01 00:00:00

abstract：OBJECTIVE:The factors involved in restenosis after balloon angioplasty are poorly characterized but the local concentration of the potent mitogens angiotensin II (AII) and thrombin is known to be increased at sites of vascular injury. We investigated the possibility of a synergistic interaction between AII and thrombin...

journal_title：Cardiovascular research

authors： Fisslthaler B,Schini-Kerth VB,Fleming I,Busse R

更新日期：1998-04-01 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：OBJECTIVE:NG,NG-dimethylarginine (asymmetric dimethylarginine, ADMA) is an important endogenous substance with potent inhibitory actions on nitric oxide (NO) synthesis. The present study was designed to determine circulating ADMA levels and endothelium-dependent, NO mediated vasodilation in a rat model of congestive he...

journal_title：Cardiovascular research

authors： Feng Q,Lu X,Fortin AJ,Pettersson A,Hedner T,Kline RL,Arnold JM

更新日期：1998-03-01 00:00:00

abstract：OBJECTIVES:L-arginine exerts anti-atherosclerotic effects in hypercholesterolaemic rabbits via modulating endogenous NO production. We investigated whether L-arginine inhibits thromboxane formation in vivo and platelet aggregation ex vivo in this animal model. METHODS:The urinary excretion rates of 2,3-dinor-6-keto-PG...

journal_title：Cardiovascular research

authors： Bode-Böger SM,Böger RH,Kienke S,Böhme M,Phivthong-ngam L,Tsikas D,Frölich JC

更新日期：1998-03-01 00:00:00

abstract：OBJECTIVE:In isolated cardiac preparations of non-failing hearts from different species, including man, there is a positive force-frequency relation which is reversed into a negative relation in preparation from failing hearts. Whether or not such relations between ventricular function and heart rate hold true in the i...

journal_title：Cardiovascular research

authors： Neumann T,Ravens U,Heusch G

更新日期：1998-02-01 00:00:00

abstract：OBJECTIVE:To test the hypothesis that mild hypothermia potentiates the cardioprotection afforded by ischaemic preconditioning so that infarct size limitation can be obtained after coronary artery occlusion (CAO) durations which exceed the cardioprotective range (> 90 min) of either hypothermia or ischaemic precondition...

journal_title：Cardiovascular research

authors： van den Doel MA,Gho BC,Duval SY,Schoemaker RG,Duncker DJ,Verdouw PD

更新日期：1998-01-01 00:00:00

abstract：OBJECTIVE:Previous studies have shown that chronic cardiac denervation impairs myocardial glucose oxidation. To investigate this further we tested whether the tissue content of glucose transporters, activity of glycolytic enzymes or metabolic capacity of pyruvate dehydrogenase were altered. Moreover, we investigated wh...

journal_title：Cardiovascular research

authors： van der Vusse GJ,Dubelaar ML,Coumans WA,Seymour AM,Clarke SB,Bonen A,Drake-Holland AJ,Noble MI

更新日期：1998-01-01 00:00:00

abstract：OBJECTIVE:Increased pulse pressure has been observed in aging subjects, but the impact on the structure and reactivity of small arteries has been scarcely evaluated. METHODS:This study presents the modifications of vascular structure and function observed in female rats of 5, 18 and 32 months of age, and their relatio...

journal_title：Cardiovascular research

authors： Moreau P,d'Uscio LV,Lüscher TF

更新日期：1998-01-01 00:00:00

abstract：OBJECTIVE:Polymorphonuclear leukocytes (PMN), retained in the microvascular bed, can contribute to postischemic myocardial reperfusion injury. Since a beneficial effect of ACE-inhibition on reperfusion injury has been reported, we investigated the impact of cilazaprilat on PMN dependent reperfusion injury in isolated g...

journal_title：Cardiovascular research

authors： Kupatt C,Habazettl H,Zahler S,Weber C,Becker BF,Messmer K,Gerlach E

更新日期：1997-12-01 00:00:00

abstract：OBJECTIVE:It has been suggested that nitric oxide (NO) is involved in the regulation of myocardial function in a variety of diseases such as dilated cardiomyopathy, myocarditis, heart transplant rejection, and septic shock. However, the underlying mechanism of NO mediated reduction of cardiac contractility has not been...

journal_title：Cardiovascular research

authors： Kelm M,Schäfer S,Dahmann R,Dolu B,Perings S,Decking UK,Schrader J,Strauer BE

更新日期：1997-11-01 00:00:00

abstract：OBJECTIVE:Recently, we have found that rat CMV (RCMV) infected smooth muscle cells (SMCs) in rat carotid arteries when administered 14 days after balloon injury. In the present study we investigated (1) the long term effects of CMV infection on neointimal cross-sectional area, and (2) whether the phenotype of the intim...

journal_title：Cardiovascular research

authors： Persoons MC,Daemen MJ,van Kleef EM,Grauls GE,Wijers E,Bruggeman CA

更新日期：1997-11-01 00:00:00

abstract：OBJECTIVE:The purpose of this study was to assess whether the plasma levels of soluble adhesion molecules including E-selectin, intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) are elevated in patients with variant angina and whether they are released in the coronary circulation...

journal_title：Cardiovascular research

authors： Miwa K,Igawa A,Inoue H

更新日期：1997-10-01 00:00:00

abstract：OBJECTIVES:The A10 cell line was derived from the thoracic aorta of embryonic rat and is a commonly used model of vascular smooth muscle cells (VSMC). Despite its wide use this cell line has not been well characterized. This is especially important in light of recent evidence of phenotypically distinct cell populations...

journal_title：Cardiovascular research

authors： Rao RS,Miano JM,Olson EN,Seidel CL

更新日期：1997-10-01 00:00:00