Biochemical regulators in cardiac hypertrophy.

abstract：:Long QT syndrome is a potentially life-threatening disease characterized by delayed repolarization of cardiomyocytes, QT interval prolongation in the electrocardiogram, and a high risk for sudden cardiac death caused by ventricular arrhythmia. The genetic type 3 of this syndrome (LQT3) is caused by gain-of-function mu...

journal_title：Basic research in cardiology

authors： Malan D,Zhang M,Stallmeyer B,Müller J,Fleischmann BK,Schulze-Bahr E,Sasse P,Greber B

更新日期：2016-03-01 00:00:00

abstract：:Mobilization of triacylglycerol stored in heart cells is accomplished by the combined action of lysosomal (acid) lipase and microsomal monoacylglycerol lipase or carboxylesterase. Non(heparin)-releasable neutral or alkaline lipase is similar to non(readily)-releasable lipoprotein lipase (LPL). The enzyme is mainly loc...

journal_title：Basic research in cardiology

authors： Hülsmann WC,Stam H,Jansen H

更新日期：1984-05-01 00:00:00

abstract：:Conflicting data on the inotropic effect of insulin are present in the literature suggesting a positive inotropic property or no inotropic effect or even a negative influence. To clarify the reason for these diverging findings, dose-response curves of insulin have been performed in isolated working rat and guinea pig ...

journal_title：Basic research in cardiology

authors： Schmidt HD,Koch M

更新日期：2002-07-01 00:00:00

abstract：:Nitric oxide (NO) exerts several effects on myocardial contraction, including enhancement of relaxation and diastolic function, modulation of beta-adrenergic inotropic responses, and inotropic effects in the absence of agonist pre-stimulation. Different effects have been observed in different species and preparations,...

journal_title：Basic research in cardiology

authors： Prendergast BD,MacCarthy P,Wilson JF,Shah AM

更新日期：1998-08-01 00:00:00

abstract：:The aim of this study was to investigate the mechanism of beta-adrenergic preconditioning (BPC). The roles of adenosine and its receptor subtypes, the generation of oxygen free radicals (ROS) and activation of the K(ATP) channels as well as the phosphoinositide-3-kinase (PI(3)K)/PKB/Akt and extracellular signal-regula...

journal_title：Basic research in cardiology

authors： Salie R,Moolman JA,Lochner A

更新日期：2012-09-01 00:00:00

abstract：:Elucidation of the subcellular mechanism of myocardial ischemic preconditioning should be facilitated by precise knowledge of the biology of the cardioprotective response. Any proposed molecular mechanism for preconditioning must be initiated during the required ischemic stress period. The studies reported in this pap...

journal_title：Basic research in cardiology

authors： Schwartz LM,Jennings RB,Reimer KA

更新日期：1997-04-01 00:00:00

abstract：:It is generally believed that the increased contractility and tachycardia of the hyperthyroid heart are a result of thyroid hormone-induced alterations of the mechanical and electrical properties of the heart, respectively. We compared the contractility (dP/dtmax) and the spontaneous beating rate of hyperthyroid and e...

journal_title：Basic research in cardiology

authors： Wheatley AM,Butkow N,Marcus RH,Lippe IT,Rosendorff C

更新日期：1988-11-01 00:00:00

abstract：:Two-weekly echocardiographic examinations were conducted in nine SHHF-Mc-fa(cp) rats in comparison with eight age-matched Wistar rats. In the SHHF-rats, characterized by progressive LV-dilation and decreasing contractile function between 77-87 weeks of age, left ventricular (LV) hypertrophy was most sensitively demons...

journal_title：Basic research in cardiology

authors： Reffelmann T,Kloner RA

更新日期：2003-09-01 00:00:00

abstract：:The relationship between ischemic contracture and no-reflow phenomenon was studied in 59 isolated rat hearts during global ischemia. The contracture was measured by a water-filled balloon catheter placed in the left ventricular lumen. The time of onset of contracture was changed by preischemic infusion with buffer con...

journal_title：Basic research in cardiology

authors： Lipasti JA,Nevalainen TJ,Alanen KA

更新日期：1982-07-01 00:00:00

abstract：:Hemodynamics and myocardial contractility were evaluated in five unanesthetized calves during acute hypocapnic and isocapnic hypoxia and during acute hypocapnic hypoxia with beta-adrenergic blockade. Both hypocapnic and isocapnic hypoxia, with mean PaO2 levels of 33.1 and 39.1 mm Hg respectively, produced a decline in...

journal_title：Basic research in cardiology

authors： Buss DD,Bisgard GE

更新日期：1976-09-01 00:00:00

abstract：:Guinea-pig left atria were loaded with 10 microCi 7-[3H]noradrenaline, and noradrenaline release from sympathetic nerve endings was then elicited by refractory period field stimulation. When one pulse of 0.2 ms duration was applied during each refractory period, the resulting transmitter release was halved by 3 x 10(-...

journal_title：Basic research in cardiology

authors： Brasch H

更新日期：1993-11-01 00:00:00

abstract：:The effects of chronic intake of dietary alcohol upon left ventricular function, activities of myocardial antioxidant enzymes, reduced glutathione (GSH) content and lipoperoxidation (measured as the formation of diene conjugates and lipid-soluble fluorescence) were studied in adult domestic Nicholas turkeys. The non-i...

journal_title：Basic research in cardiology

authors： Edes I,Piros G,Forster T,Csanady M

更新日期：1987-11-01 00:00:00

abstract：:1. Studies on three models of cardiac hypertrophy (aortic constriction, application of isoproterenol, daily administrations of 3,3'5-triiodo-L-thyronine, respectively) reveal that the enhancement of de novo synthesis of adenine nucleotides occurs very early during the development of cardiac hypertorphy and always prec...

journal_title：Basic research in cardiology

authors： Zimmer HG,Gerlach E

更新日期：1977-03-01 00:00:00

abstract：:Cardioprotection aims at infarct size reduction and improvement of clinical outcome from myocardial infarction. The translation of cardioprotection from preclinical and promising proof-of-concept studies to clinical benefit for patients has been largely disappointing. Almost all of these studies which did not translat...

journal_title：Basic research in cardiology

authors： Heusch G

更新日期：2019-10-15 00:00:00

abstract：:The behavior of Ca(2+)-activated K+ channels of large conductance (BKCa) in smooth muscle cells, which were obtained from atherosclerotic plaque material (SMCP) and from media segments (SMCM) of human coronary arteries, were compared using the patch-clamp technique. Voltage-clamp protocols in cell-attached patches rev...

journal_title：Basic research in cardiology

authors： Wiecha J,Schläger B,Voisard R,Hannekum A,Mattfeldt T,Hombach V

更新日期：1997-08-01 00:00:00

abstract：:The antiarrhythmic effect of carbocromene (Intensain) was studied in 17 anaesthetized dogs. Ventricular tachycardia was induced by infusion of K-strophanthin (mean dose: 154 mug/kg i.v.). In 25 out of 26 experiments carbocromene (4 mg/kg i.v.) was effective. Ventricular tachycardia was converted to sinus rhythm in 16 ...

journal_title：Basic research in cardiology

authors： Carp CI,Scholtholt J,Nitz RE

更新日期：1975-07-01 00:00:00

abstract：:It is commonly thought that the optimal method for intracoronary administration of cells is to stop coronary flow during cell infusion, in order to prolong cell/vascular wall contact, enhance adhesion, and promote extravasation of cells into the interstitial space. However, occlusion of a coronary artery with a balloo...

journal_title：Basic research in cardiology

authors： Keith MC,Tokita Y,Tang XL,Ghafghazi S,Moore JB 4th,Hong KU,Elmore JB,Amraotkar AR,Guo H,Ganzel BL,Grubb KJ,Flaherty MP,Vajravelu BN,Wysoczynski M,Bolli R

更新日期：2015-09-01 00:00:00

abstract：:The isolated working rabbit heart preparation was used to study whether the "contractile machinery" remains unchanged in globally stunned myocardium. The function of the heart has been measured in nonischemic and postischemic conditions. The effect of isoprenaline or calcium chloride administration in both conditions ...

journal_title：Basic research in cardiology

authors： Andres J,Moczarska A,Stepkowski D,Kakol I

更新日期：1991-05-01 00:00:00

abstract：:Transgenic and gene knockout rodent models are primordial to study pathophysiological processes in cardiovascular research. Over time, cardiac MRI has become a gold standard for in vivo evaluation of such models. Technical advances have led to the development of magnets with increasingly high field strength, allowing ...

journal_title：Basic research in cardiology

authors： Vanhoutte L,Gerber BL,Gallez B,Po C,Magat J,Balligand JL,Feron O,Moniotte S

更新日期：2016-07-01 00:00:00

abstract：:Recent attention has focused on the concept that mitochondrial dynamics-that is, the balance between mitochondrial fusion and fission (fragmentation)-may play a pivotal role in determining cell fate in the setting of myocardial ischemia-reperfusion injury. In this regard, there is an emerging consensus that: (1) ische...

journal_title：Basic research in cardiology

authors： Dong Y,Undyala VVR,Przyklenk K

更新日期：2016-09-01 00:00:00

abstract：:Rat hearts were exposed and injured locally by direct cryoapplication. The hearts were examined 2, 4, 20 and 48 hours, 7 and 12 days later. In the first 48 hours mast cell and polymorphonuclear (mainly eosinophilic) granulocyte infiltration was followed by proliferation of mononuclear phagocytic and fibroblastic cells...

journal_title：Basic research in cardiology

authors： Yarom R,Havivi Y,Heling I

更新日期：1979-05-01 00:00:00

abstract：:Regional glucose utilization of the developing fetal feline heart was assessed during three stages of gestation and compared with the maternal heart and non-pregnant controls. The specific aims were to determine: 1) if glucose utilization by the whole heart changes from early to late gestation; 2) if there are differe...

journal_title：Basic research in cardiology

authors： Kostreva DR,Wood JD

更新日期：1991-07-01 00:00:00

abstract：:To determine the effect of magnesium on myocardial function and oxidative metabolism after reperfusion, isolated rat hearts perfused retrogradely with erythrocyte-enriched medium (0.4 mM palmitate bound to 0.4 mM albumin, 11 mM glucose) were subjected to 60 minutes of no-flow ischemia followed by 60 minutes of reperfu...

journal_title：Basic research in cardiology

authors： Tamm C,Papageorgiou I,Tardy I,Mermillod B,Rutishauser W,Lerch R

更新日期：1994-07-01 00:00:00

abstract：:In the isometrically contracting rat trabecular muscle strip preparation, contracture tension was induced either by 10 min of hypoxia (low contracture tension) or by 30 min of joint oxygen and glucose withdrawal (severe contracture tension) at optimum length. Using stepwise 0.1 mm releases, length-tension relationship...

journal_title：Basic research in cardiology

authors： Holubarsch C,Jacob R

更新日期：1981-11-01 00:00:00

abstract：:Short repeated cycles of peripheral ischemia/reperfusion (I/R) can protect distant organs from subsequent prolonged I/R injury; a phenomenon known as remote ischemic preconditioning (RIPC). A RIPC-mediated release of humoral factors might play a key role in this protection and vascular endothelial cells are potential ...

journal_title：Basic research in cardiology

authors： Weber NC,Riedemann I,Smit KF,Zitta K,van de Vondervoort D,Zuurbier CJ,Hollmann MW,Preckel B,Albrecht M

更新日期：2015-03-01 00:00:00

abstract：:X-ray microanalysis was used to compare chemically untreated cryosections of quick-frozen myocardial tissue in "caffeine contracture" with cryosections of normal muscle. Our goal was to find out if it is possible by means of this method to detect changes in the calcium compartmentalization of the myocardial cell occur...

journal_title：Basic research in cardiology

authors： Wendt-Gallitelli MF,Wolburg H,Schlote W,Schwegler M,Holubarsch C,Jacob R

更新日期：1980-01-01 00:00:00

abstract：:The mechanism of ergonovine-provoked coronary vasospasm is poorly understood. We tested the effect of ergonovine in perfused hearts from normal and cholesterol-fed (18 weeks, 2% cholesterol diet) rabbits in a constant-flow Langendorff perfusion. Aortic perfusion pressure was monitored to measure coronary vascular resi...

journal_title：Basic research in cardiology

authors： von Arnim T,Crea F,Chierchia S,Thompson GR,Maseri A

更新日期：1983-07-01 00:00:00

abstract：:Using isolated canine small (right coronary branch, left coronary branch; o. d. 0.4-0.8 mm) and large (left coronary, circumflex; o. d. 1-2 mm) coronary arteries, the beta-adrenergic antagonist dl-propranolol (5 X 10(-7) to 5 X 10(-5) m/l) was found to produce concentration-dependent contractions. Interestingly, most ...

journal_title：Basic research in cardiology

authors： Turlapaty PD,Altura BM

更新日期：1982-01-01 00:00:00

abstract：:Myocardial stunning, a transient contractile dysfunction that appears following a brief period of ischemia, is at least partly due to the production of oxygen-derived free radicals. The objective of the present study was to determine whether the Ginkgo biloba extract EGb761, which has antioxidant properties in vitro, ...

journal_title：Basic research in cardiology

authors： Rioufol G,Pietri S,Culcasi M,Loufoua J,Staat P,Pop C,Drieu K,Ovize M

更新日期：2003-02-01 00:00:00

abstract：:The influence of norepinephrine on ventricular overdrive suppression and attendant potassium shifts has been studied in isolated perfused canine hearts with complete atrioventricular block. It was found that: 1) there is a potassium loss during the drive and a potassium uptake after the drive); 2) reducing the driving...

journal_title：Basic research in cardiology

authors： Pliam MB,Krellenstein DJ,Brooks CM,Vassalle M

更新日期：1977-01-01 00:00:00