The membrane proteins of the overloaded and senescent heart.

abstract：:Increased activity of the sympathetic system is an important feature contributing to the pathogenesis and progression of chronic heart failure. While the mechanisms and consequences of enhanced norepinephrine release from sympathetic nerves have been intensely studied, the role of the adrenal gland in the development ...

journal_title：Basic research in cardiology

authors： Schneider J,Lother A,Hein L,Gilsbach R

更新日期：2011-06-01 00:00:00

abstract：:Atherosclerotic plaque rupture is the key event in the pathogenesis of acute coronary syndromes and it also occurs during coronary interventions. Atherosclerotic plaque rupture does not always result in complete thrombotic occlusion of the epicardial coronary artery with subsequent impending myocardial infarction, but...

journal_title：Basic research in cardiology

authors： Skyschally A,Leineweber K,Gres P,Haude M,Erbel R,Heusch G

更新日期：2006-09-01 00:00:00

abstract：:The concentration of fibroblast growth factor 23 (FGF23) rises progressively in renal failure (RF). High FGF23 concentrations have been consistently associated with adverse cardiovascular outcomes or death, in chronic kidney disease (CKD), heart failure or liver cirrhosis. We identified the mechanisms whereby high con...

journal_title：Basic research in cardiology

authors： Lindner M,Mehel H,David A,Leroy C,Burtin M,Friedlander G,Terzi F,Mika D,Fischmeister R,Prié D

更新日期：2020-07-22 00:00:00

abstract：:Complete length-tension diagrams of myocardium were measured on isolated papillary muscles of cat right ventricle. These diagrams clearly demonstrate that irrespective of loading conditions there is no uniform maxima curve. As a function of preload the curves of afterloaded isotonic maxima obey totally separate nonlin...

journal_title：Basic research in cardiology

authors： Gülch RW

更新日期：1985-11-01 00:00:00

abstract：:This study was aimed to assess the relationship among the voltage-dependent processes underlying the excitation-contraction coupling, viz. force restitution (FR), transmembrane Ca fluxes and Ca release. The experiments (n = 22) were performed on voltage-clamped dog trabeculae in which force and slow inward current wer...

journal_title：Basic research in cardiology

authors： Bravený P,Simurda J,Simurdová M

更新日期：1992-09-01 00:00:00

abstract：:Age-related changes in the myocardial energy metabolism were studied in spontaneously hypertensive (SHR) rats of 5-15 weeks of age. Systolic blood pressure increased rapidly during 5 to 10 weeks of age (developing phase) and attained a plateau level at 10 to 15 weeks (sustained phase). Even during the developing phase...

journal_title：Basic research in cardiology

authors： Shimamoto N,Goto N,Tanabe M,Imamoto T,Fujiwara S,Hirata M

更新日期：1982-07-01 00:00:00

abstract：:Recent studies have demonstrated the presence of autoantibodies against alpha(1)-adrenoceptor (alpha(1)-AAB) in the serum of patients with primary hypertension, and that these autoantibodies exert adrenergic-agonist-like effects. However, their role in the development of hypertension remains unclear. The current study...

journal_title：Basic research in cardiology

authors： Yan L,Xu Y,Yao H,Xue W,Tian J,Ren H,Wu Y,Yang G,Ma XL,Liu H

更新日期：2009-09-01 00:00:00

abstract：AIMS:We studied the capability of heart rate (HR) adjusted change in multichannel magnetocardiogram (MCG) to detect exercise-induced ischemia. METHODS AND RESULTS:The MCG and 12-lead ECG were recorded simultaneously during supine exercise testing in 17 healthy controls and 24 patients with single vessel coronary arter...

journal_title：Basic research in cardiology

authors： Takala P,Hänninen H,Montonen J,Korhonen P,Mäkijärvi M,Nenonen J,Oikarinen L,Toivonen L,Katila T

更新日期：2002-01-01 00:00:00

abstract：:An increase in extracellular potassium concentration from 4 to 16 mmol/l caused a decrease in membrane potential from -92 to -59 mV and selectively diminished the earlier of two contraction components of guinea-pig papillary muscles at 0.2 Hz stimulation frequency in the presence of noradrenaline. The influence on the...

journal_title：Basic research in cardiology

authors： Vierling W,Seibel K,Reiter M

更新日期：1987-09-01 00:00:00

abstract：:Myocardial mechanics and oxygen consumption were studied in right ventricular papillary muscles taken from cats pretreated with cristalline L-thyroxine (1 mg/kg/day, i.p.) 8-18 days prior to the examination. Isotonic afterloaded and isometric contractions were employed. Oxygen consumption was determined polarographica...

journal_title：Basic research in cardiology

authors： Strauer BE,Scherpe A

更新日期：1975-05-01 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：:In the human ventricle two isoforms of the phosphorylatable myosin light chain (MPLC) are expressed. These two forms are designated with increasing acidity as LC-2 and LC-2*. In the normal human heart the relation between LC-2/LC-2*-expression is 70/30, suggesting the existence of three different myosin isoenzymes (MP...

journal_title：Basic research in cardiology

authors： Morano I

更新日期：1992-01-01 00:00:00

abstract：:Apart from local heterogeneities of myocardial blood flow, the regulation of vascular tone is equally complex. Changes in vascular tone are essential for the adaptation of coronary blood flow to varying metabolic demands. The majority of coronary vascular resistance is found in the microcirculation, that is, in vessel...

journal_title：Basic research in cardiology

authors： Tiefenbacher CP,Chilian WM

更新日期：1998-12-01 00:00:00

abstract：:The influence of changes in pre- and afterload, heart frequency and inotropic state on the difference between right ventricular dP/dtmax measured isovolumically and auxotonically has been investigated in canine heart-lung preparations. Isovolumic systoles were obtained by occluding the pulmonary artery during diastole...

journal_title：Basic research in cardiology

authors： Hoppe H,Schmidt HD,Seitz E

更新日期：1976-09-01 00:00:00

abstract：:Patients with insulin resistance and type 2 diabetes have poor cardiac outcomes following myocardial infarction (MI). The mitochondrial uncoupling protein 3 (UCP3) is down-regulated in the heart with insulin resistance. We hypothesized that decreased UCP3 levels contribute to poor cardiac recovery following ischemia/r...

journal_title：Basic research in cardiology

authors： Edwards KS,Ashraf S,Lomax TM,Wiseman JM,Hall ME,Gava FN,Hall JE,Hosler JP,Harmancey R

更新日期：2018-10-29 00:00:00

abstract：:Ischemic heart disease is the main cause of death worldwide and is accelerated by increased levels of low-density lipoprotein cholesterol (LDL-C). Proprotein convertase subtilisin/kexin type 9 (PCSK9) is a potent circulating regulator of LDL-C through its ability to induce degradation of the LDL receptor (LDLR) in the...

journal_title：Basic research in cardiology

authors： Glerup S,Schulz R,Laufs U,Schlüter KD

更新日期：2017-05-01 00:00:00

abstract：:Increasing the frequency of steady state stimulation increases the rate of mechanical restitution in hypothermic (27 degrees C) guinea pig papillary muscles. In this paper we have investigated the influences of the calcium antagonist nifedipine and of reduced extracellular calcium concentration on this phenomenon. We ...

journal_title：Basic research in cardiology

authors： Spencer CI,Mörner SE,Noble MI,Seed WA

更新日期：1993-03-01 00:00:00

abstract：:A new experimental in-vitro model is described, which was used for studying prostacyclin (PGI2)-thromboxane A2 (TXA2)-interactions. Langendorff hearts of guinea pigs are perfused at constant volume with Krebs-Henseleit buffer and washed human platelets (4 x 10(8)/min). PGI2 and TXA2 release are measured by bioassay. T...

journal_title：Basic research in cardiology

authors： Köhler P,Schrör K

更新日期：1981-09-01 00:00:00

abstract：:Toxic peroxides result when oxygen radicals react with various peroxidic precursors in tissue or blood. A colorimetric method based on reactions of malondialdehyde (MDA), a key intermediate in the formation of peroxides, has been described in fresh tissues. The present report adapts this assay to measure MDA levels in...

journal_title：Basic research in cardiology

authors： Liedtke AJ,Mahar CQ,Ytrehus K,Mjøs OD

更新日期：1984-09-01 00:00:00

abstract：:Myocytes isolated from guinea pig ventricles were voltage-clamped using patch pipettes in the whole-cell configuration. For proper voltage control fast Na+ current was blocked by TTX or inactivated by an appropriate prepulse. Zero-load cell shortening was monitored by a photoelectric device. The mechanical response to...

journal_title：Basic research in cardiology

authors： Meyer R,Haas HG,Wiemer J

更新日期：1989-03-01 00:00:00

abstract：:Protection from postconditioning has been documented in in situ animal models and it has been proposed that it is targeting circulating leukocytes. We therefore tested whether postconditioning can protect leukocyte-free, buffer-perfused rabbit hearts. Infarct size was measured with triphenyltetrazolium staining. In co...

journal_title：Basic research in cardiology

authors： Yang XM,Philipp S,Downey JM,Cohen MV

更新日期：2005-01-01 00:00:00

abstract：:An orifice equation for the non-invasive measurement of mitral-valve area is demonstrated. It is shown that by combining this expression with the assumption of mitral-valve area invariance an orifice equation for the non-invasive assessment of cardiac output in conditions of mitral stenosis using simple echographicall...

journal_title：Basic research in cardiology

authors： Seitz WS,Spiel MS,Operschall J,Pachinger O,Klicpera M

更新日期：1983-01-01 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：: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：:The effect of isoproterenol perfusion on cAMP levels and phosphorylase activity was investigated in the spontaneously hypertensive rat (SHR) and Kyoto Wistar normotensive control rat (WKY) heart. The basal force of contraction in physiological salt solution perfused hearts was comparable between SHR and WKY. However, ...

journal_title：Basic research in cardiology

authors： Sharma RV,Gupta RC,Ramanadham M,Venema RC,Bhalla RC

更新日期：1983-11-01 00:00:00

abstract：:Mitochondrial dysfunction is an underlying cause of ischemia-reperfusion injury. In particular, ischemic injury induces dramatic increases in mitochondrial permeability, thereby instigating a chain of events that leads to both apoptotic and necrotic cardiomyocyte death. The mitochondrial permeability transition (MPT) ...

journal_title：Basic research in cardiology

authors： Baines CP

更新日期：2009-03-01 00:00:00

abstract：:Urapidil (URA) is used to treat acute hypertension in patients with coronary artery disease, but the effect of URA on the performance of ischemic myocardium has not yet been investigated. The present study was intended to assess the function of ischemic myocardium following URA administration. In eight anesthetized (p...

journal_title：Basic research in cardiology

authors： Schad H,Heimisch W,Barankay A,Hesse S,Mendler N

更新日期：1990-05-01 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：:Reperfusion following various intervals of coronary occlusion has produced conflicting results: increase in infarct size, especially with hemorrhage into the tissue, was reported as well as salvage of ischemic myocardium. To examine the problem and for the validation of our own method for infarct size measurement, whi...

journal_title：Basic research in cardiology

authors： Hofmann M,Hofmann M,Genth K,Schaper W

更新日期：1980-07-01 00:00:00

abstract：OBJECTIVE:Cardiac stunning is the consequence of a brief cardiac ischemia. The underlying mechanism is not completely understood. METHODS:Here we induced cardiac transient ischemia in conscious instrumented dogs by means of an occluder in the left anterior descending coronary artery (LAD). Contractile performance, mon...

journal_title：Basic research in cardiology

authors： Weber T,Neumann J,Meissner A,Grosse Hartlage M,Van Aken H,Hanske G,Schmitz W,Boknik P

更新日期：2006-05-01 00:00:00