Intracellular and extracellular recordings of sinus node activity: comparison with estimated sinoatrial conduction times during pacemaker shifts in rabbit heart.

abstract：AIMS:Peripheral chemoreflex sensitivity is potentiated in both clinical and experimental chronic heart failure (CHF). NADPH oxidase-derived superoxide mediates angiotensin II (Ang II)-enhanced carotid body (CB) chemoreceptor sensitivity in CHF rabbits, and tempol, the superoxide dismutase (SOD) mimetic, inhibits this A...

journal_title：Cardiovascular research

authors： Ding Y,Li YL,Zimmerman MC,Davisson RL,Schultz HD

更新日期：2009-03-01 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：:This study has investigated the origin of the pulsatile expansion of the forearm recorded by the amplification of the pulsatile signal derived from a mercury in rubber plethysmograph. Venous occlusion to pressures of 40 mmHg had no effect on the amplitude of the volume pulse, suggesting that the volume pulse originate...

journal_title：Cardiovascular research

authors： Fitchett DH

更新日期：1984-11-01 00:00:00

abstract：:A diminished sympathetic activity has been related to training bradycardia seen at rest and during exercise. In order to evaluate if changes in heart adrenergic receptors can be one of the mechanisms by which the sympathetic responsiveness could be decreased by physical training, the number and affinity of beta-adrene...

journal_title：Cardiovascular research

authors： Sylvestre-Gervais L,Nadeau A,Nguyen MH,Tancrède G,Rousseau-Migneron S

更新日期：1982-09-01 00:00:00

abstract：AIMS:17β-Oestradiol (E2) and its receptors (ERα and ERβ) are important regulators of physiological and pathological processes in the cardiovascular system. ER act in concert with other regulatory factors mediating oestrogenic effects. However, the underlying mechanisms modulating ER transcriptional activity are not ful...

journal_title：Cardiovascular research

authors： Mahmoodzadeh S,Pham TH,Kuehne A,Fielitz B,Dworatzek E,Kararigas G,Petrov G,Davidson MM,Regitz-Zagrosek V

更新日期：2012-12-01 00:00:00

abstract：OBJECTIVE:Co-expression of the KvLQT1 and minK potassium channel subunits is required to recapitulate I(Ks), the slow component of the cardiac delayed rectifier current, and mutations in either gene cause the congenital Long QT syndrome. It is becoming increasingly well-recognized that multiprotein channel complexes co...

journal_title：Cardiovascular research

authors： Kupershmidt S,Yang IC,Sutherland M,Wells KS,Yang T,Yang P,Balser JR,Roden DM

更新日期：2002-10-01 00:00:00

abstract：:Congenital coronary artery anomalies are of major significance in clinical cardiology and cardiac surgery due to their association with myocardial ischaemia and sudden death. Such anomalies are detectable by imaging modalities and, according to various definitions, their prevalence ranges from 0.21 to 5.79%. This cons...

journal_title：Cardiovascular research

authors： Pérez-Pomares JM,de la Pompa JL,Franco D,Henderson D,Ho SY,Houyel L,Kelly RG,Sedmera D,Sheppard M,Sperling S,Thiene G,van den Hoff M,Basso C

更新日期：2016-02-01 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:To investigate the cellular mechanisms underlying global and regional LV dysfunction in the post-infarct (MI) remodeled rat hearts. METHODS:LV remodeling and function were quantified by echocardiography, morphometry, in vivo hemodynamics, and isolated perfused heart studies in 6 weeks post-MI and sham-operat...

journal_title：Cardiovascular research

authors： Gupta S,Prahash AJ,Anand IS

更新日期：2000-10-01 00:00:00

abstract：Aims:Chronic heart failure is becoming increasingly prevalent and is still associated with a high mortality rate. Myocardial hypertrophy and fibrosis drive cardiac remodelling and heart failure, but they are not sufficiently inhibited by current treatment strategies. Furthermore, despite increasing knowledge on cardiom...

journal_title：Cardiovascular research

authors： Grund A,Szaroszyk M,Döppner JK,Malek Mohammadi M,Kattih B,Korf-Klingebiel M,Gigina A,Scherr M,Kensah G,Jara-Avaca M,Gruh I,Martin U,Wollert KC,Gohla A,Katus HA,Müller OJ,Bauersachs J,Heineke J

更新日期：2019-01-01 00:00:00

abstract：:The kinetics of onset of rate-dependent depression of maximum rate of depolarisation (Vmax) of guinea-pig ventricular action potentials were studied for nine Class I anti-arrhythmic drugs using standard microelectrode techniques. The drugs were found to fall into three well-demarcated subgroups with "fast" (lignocaine...

journal_title：Cardiovascular research

authors： Campbell TJ

更新日期：1983-06-01 00:00:00

abstract：OBJECTIVE:Caffeic acid phenethyl ester (CAPE), which is derived from the propolis of honeybee hives, has been demonstrated to possess multiple pharmacological activities. In the present study, CAPE (6-25 microM) specifically inhibited collagen-induced platelet aggregation and the ATP release reaction in platelet suspen...

journal_title：Cardiovascular research

authors： Hsiao G,Lee JJ,Lin KH,Shen CH,Fong TH,Chou DS,Sheu JR

更新日期：2007-09-01 00:00:00

abstract：OBJECTIVES:Prior studies have shown that the performance of the left ventricle on any one beat is influenced by the mechanical events of the previous beat, a phenomenon called "previous-beat contraction history". This previous-beat contraction history, which appears to be an interplay between the mechanical events of o...

journal_title：Cardiovascular research

authors： Slinker BK,Tobias AH

更新日期：1996-07-01 00:00:00

abstract：AIMS:n-3 Polyunsaturated fatty acids (PUFAs) are known to protect the cardiovascular system and improve blood pressure control. These important dietary constituents are converted into bioactive metabolites, but their role in regulation of the cardiovascular system is unclear. In particular, the functions of the cytochr...

journal_title：Cardiovascular research

authors： Wang RX,Chai Q,Lu T,Lee HC

更新日期：2011-05-01 00:00:00

abstract：:Tension and action potentials have been measured simultaneously from isolated cat papillary muscles. Two groups of experiments are described. In the first group, the external conditions under which the muscle contracted were changed. Specifically, stimulation rate, extra-cellular [Ca++], extracellular [Na++] were alte...

journal_title：Cardiovascular research

authors： Allen DG

更新日期：1977-05-01 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：OBJECTIVE:The purpose was to investigate the influence of the 38-amino-acid neuropeptide, pituitary adenylate cyclase activating polypeptide (PACAP38), on contractile function and coronary vascular tone in neonatal hearts. METHODS:Isolated, paced (150 bpm), isovolumically-beating, piglet hearts (n = 19) underwent retr...

journal_title：Cardiovascular research

authors： Ascuitto RJ,Ross-Ascuitto NT,Waddell AE,Kadowitz PJ

更新日期：1996-02-01 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：OBJECTIVES:Nitric oxide (NO) has complex effects on myocardial function particularly following ischaemia-reperfusion. The goal of this study was to examine the result of repetitive myocardial stunning on myocardial NO release and expression of inducible (iNOS) and constitutive (eNOS) NO synthases. METHODS AND RESULTS:...

journal_title：Cardiovascular research

authors： Baker CS,Rimoldi O,Camici PG,Barnes E,Chacon MR,Huehns TY,Haskard DO,Polak JM,Hall RJ

更新日期：1999-08-15 00:00:00

abstract：AIMS:P2X receptors (P2XRs) mediate sympathetic control and autoregulation of renal circulation triggering preglomerular vasoconstriction, which protects glomeruli from elevated pressures. Although previous studies established a casual link between glomerular susceptibility to hypertensive injury and decreased preglomer...

journal_title：Cardiovascular research

authors： Gordienko D,Povstyan O,Sukhanova K,Raphaël M,Harhun M,Dyskina Y,Lehen'kyi V,Jama A,Lu ZL,Skryma R,Prevarskaya N

更新日期：2015-02-01 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

authors： Grover GJ,D'Alonzo AJ,Hess T,Sleph PG,Darbenzio RB

更新日期：1995-11-01 00:00:00

abstract：OBJECTIVE:The pulmonary circulation may contribute to elevated plasma levels of endothelin-1 (ET-1) in congestive heart failure (CHF). The aims of the present study were to determine the mechanisms of increased secretion of ET-1 from the pulmonary circulation in CHF. METHODS:Juvenile pigs were subjected to sham operat...

journal_title：Cardiovascular research

authors： von Lueder TG,Kjekshus H,Edvardsen T,ØIe E,Urheim S,Vinge LE,Ahmed MS,Smiseth OA,Attramadal H

更新日期：2004-07-01 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: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：AIMS:Ischaemic preconditioning (IPC) protects the heart against prolonged lethal ischaemia through a signalling cascade involving Akt, glycogen synthase kinase-3β (GSK-3β), and mitochondrial ATP-sensitive potassium channels (mitoK(ATP)). We previously demonstrated the involvement of the Wnt pathway in IPC in vivo via G...

journal_title：Cardiovascular research

authors： Vigneron F,Dos Santos P,Lemoine S,Bonnet M,Tariosse L,Couffinhal T,Duplaà C,Jaspard-Vinassa B

更新日期：2011-04-01 00:00:00

abstract：:The last decade has seen a dramatic increase in the understanding of the molecular basis of arrhythmias. Much of this new information has been driven by genetic studies that focused on rare, monogenic arrhythmia syndromes that were accompanied or followed by cellular electrophysiological or biochemical studies. The ma...

journal_title：Cardiovascular research

authors： Kääb S,Schulze-Bahr E

更新日期：2005-08-15 00:00:00

abstract：OBJECTIVE:Norepinephrine (NE) induced hypertrophy and remodelling of the extracellular matrix (ECM) in the left ventricle (LV) of the rat heart with resulting fibrosis. However, there was no increased collagen deposition in the right ventricle (RV). To test the hypothesis that lack of RV fibrosis is the result of eleva...

journal_title：Cardiovascular research

authors： Briest W,Hölzl A,Rassler B,Deten A,Baba HA,Zimmer HG

更新日期：2003-02-01 00:00:00

abstract：OBJECTIVE:The adhesive interaction of monocytes and endothelial cells has been implicated as a regulatory signal in the cell activation that is involved in the pathogenesis of atherosclerosis. We investigated the effect of monocyte-endothelial cell interaction on the expression of adhesion molecules, intercellular adhe...

journal_title：Cardiovascular research

authors： Takahashi M,Ikeda U,Masuyama J,Kitagawa S,Kasahara T,Shimpo M,Kano S,Shimada K

更新日期：1996-08-01 00:00:00

abstract：AIMS:Our objective was to explore the functional interdependence of protein kinase A (PKA) phosphorylation with binding of modulatory FK506 binding proteins (FKBP12/12.6) to the ryanodine receptor (RyR). RyR type 1 or type 2 was prepared from rabbit skeletal muscle or pig cardiac muscle, respectively. In heart failure,...

journal_title：Cardiovascular research

authors： Blayney LM,Jones JL,Griffiths J,Lai FA

更新日期：2010-01-01 00:00:00

abstract：STUDY OBJECTIVE:The aim was to compare the temporal sequence and structural relationship between perivascular and interstitial fibrosis and microscopic scarring seen in the left ventricle in response to either a transient or sustained stimulus to fibrosis. DESIGN:In 72 male Wistar rats (250-350 g) the transient stimul...

journal_title：Cardiovascular research

authors： Silver MA,Pick R,Brilla CG,Jalil JE,Janicki JS,Weber KT

更新日期：1990-09-01 00:00:00