Electrical stimulation of adult rat cardiomyocytes in culture improves contractile properties and is associated with altered calcium handling.

abstract：:This study aimed to analyze the role of endothelial progenitor cell (EPC)-derived angiogenic factors and chemokines in the multistep process driving angiogenesis with a focus on the recently discovered macrophage migration inhibitory factor (MIF)/chemokine receptor axis. Primary murine and murine embryonic EPCs (eEPCs...

journal_title：Basic research in cardiology

authors： Kanzler I,Tuchscheerer N,Steffens G,Simsekyilmaz S,Konschalla S,Kroh A,Simons D,Asare Y,Schober A,Bucala R,Weber C,Bernhagen J,Liehn EA

更新日期：2013-01-01 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：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

abstract：:We chronically implanted hygroscopic occluders around the left circumflex coronary artery in 49 anesthetized young male domestic pigs and we studied the development of a collateral circulation at 4, 8, 12, and 26 weeks after implantation. At these time intervals groups of animals were again anesthetized, the hearts we...

journal_title：Basic research in cardiology

authors： Görge G,Schmidt T,Ito BR,Pantely GA,Schaper W

更新日期：1989-09-01 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：:Epidemiological studies have repeatedly demonstrated a beneficial effect of moderate alcohol consumption on the incidence of coronary heart disease, myocardial infarction and overall mortality. The latter increases with excessive alcohol consumption. Although most epidemiological studies demonstrate a beneficial effec...

journal_title：Basic research in cardiology

authors： Flesch M,Rosenkranz S,Erdmann E,Böhm M

更新日期：2001-04-01 00:00:00

abstract：:Acute ischemia is a well-known inductor of extracellular matrix (ECM) remodeling, which leads to the development of congestive heart failure and is associated with left ventricular dilatation. Here we investigate the timecourse of ECM processing with release of endostatin (ES) and other low-molecular-weight fragments ...

journal_title：Basic research in cardiology

authors： Lauten A,Majos E,Mühlich A,Wahlers T,Weider S,Fischer JH,Figulla HR,Bloch W

更新日期：2009-09-01 00:00:00

abstract：:Ultrasonic techniques for the measurement of ventricular dimensions are widely used in acute and chronic experiments. Implantation of ultrasonic crystals is associated with reversible and irreversible myocardial damage which might limit the interpretation of the obtained results, in particular during acute experiments...

journal_title：Basic research in cardiology

authors： Schipke J,Heusch G,Schulz R,Thämer V

更新日期：1987-07-01 00:00:00

abstract：OBJECTIVE:The clinical usefulness of class III antiarrhythmic drugs for the treatment of tachyarrhythmias is limited by their potential proarrhythmic effects, mainly torsades-depointes (TdP). The goal of this experimental study was to develop an isolated whole-heart model exhibiting typical characteristics of class III...

journal_title：Basic research in cardiology

authors： Johna R,Mertens H,Haverkamp W,Eckardt L,Niederbröker T,Borggrefe M,Breithardt G

更新日期：1998-04-01 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：:The effects of increased perfusion pressure and epinephrine stimulation on the contractile parameters and glucose transport in the isolated perfused hearts of control and ketotic diabetic rats were studied. An increase in perfusion pressure from 60 mm Hg to 100 mm Hg resulted in increases in coronary flow and peak aor...

journal_title：Basic research in cardiology

authors： Murthy VK,Bauman MD,Shipp JC

更新日期：1983-05-01 00:00:00

abstract：:The aim of the present study was to evaluate the expression of hedgehog (Hh) signaling molecules and the chemotactic activity of Sonic hedgehog (Shh) in monocytes from control (CTR) and diabetic patients with or without coronary artery disease (CAD). Previously several studies demonstrated that exogenous administratio...

journal_title：Basic research in cardiology

authors： Dunaeva M,Voo S,van Oosterhoud C,Waltenberger J

更新日期：2010-01-01 00:00:00

abstract：:The purpose of this study was to obtain more information about the role of the plasma membrane in cellular uptake of tracers used in myocardial scintigraphy (radioactive thallium chloride and palmitic acid). This knowledge is of importance for an adequate interpretation of the results obtained under clinical condition...

journal_title：Basic research in cardiology

authors： Rauch B,Kübler W

更新日期：1985-01-01 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：:Receptor for advanced glycation end products (RAGE) and connective tissue growth factor (CTGF) play a key role in diabetic myocardial fibrosis, and peroxisome proliferator-activated receptor-gamma (PPAR-gamma) activation has been reported to reduce RAGE and CTGF expression. This study investigated the effects of the P...

journal_title：Basic research in cardiology

authors： Ihm SH,Chang K,Kim HY,Baek SH,Youn HJ,Seung KB,Kim JH

更新日期：2010-05-01 00:00:00

abstract：:Because of the close anatomical association between the ventricles, the volume of one ventricle can directly affect the volume and pressure within the other ventricle. To study the mechanical coupling between the ventricles, we modeled the right and left ventricles as a two-compartment model with right wall (Crw), sep...

journal_title：Basic research in cardiology

authors： Santamore WP,Shaffer T,Hughes D

更新日期：1986-09-01 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：:An adult rat heart myocyte preparation was used to study the uptake and metabolism of the 1-14C-labelled fatty acids decanoate, laurate, myristate, and palmitate. Metabolism was saturable, but free fatty acid accumulation was not. Use of metabolic inhibitors indicated that metabolism and not uptake was rate limiting a...

journal_title：Basic research in cardiology

authors： DeGrella RF,Light RJ

更新日期：1985-01-01 00:00:00

abstract：:Alcoholic heart muscle disease is characterized by structural changes which include chamber dilation, ventricular hypertrophy, and myocyte damage. These effects often lead to contractile dysfunction and ultimately to heart failure if alcohol consumption is not terminated. In rat models for heart failure in which heart...

journal_title：Basic research in cardiology

authors： Meehan J,Piano MR,Solaro RJ,Kennedy JM

更新日期：1999-12-01 00:00:00

abstract：:Hypertrophic cardiomyopathy (HCM) is a leading cause of heart failure and sudden death in adolescents and young adults. Recently, the role of the Hippo/YAP pathway has been investigated in the pathogenesis of HCM, although the detailed molecular mechanisms largely remain elusive. In this study, we demonstrated an up-r...

journal_title：Basic research in cardiology

authors： Wang P,Mao B,Luo W,Wei B,Jiang W,Liu D,Song L,Ji G,Yang Z,Lai YQ,Yuan Z

更新日期：2014-01-01 00:00:00

abstract：:At 36 degrees C and 2 mM [Ca2+]o, single guinea-pig ventricular myocytes were voltage clamped with patch electrodes. When paired pulsing had potentiated the contraction to the maximum, the cells were shock-frozen for electron probe microanalysis (EPMA). Shock-freezing was timed at the end of diastole (-80 mV) or at di...

journal_title：Basic research in cardiology

authors： Wendt-Gallitelli MF,Isenberg G,Voigt T,Ross C

更新日期：1991-01-01 00:00:00

abstract：:Thyroid hormone (TH) is critical for tissue differentiation at early stages of development, induces physiological hypertrophy and regulates the expression of important contractile proteins such as myosin heavy chain (MHC) isoform and calcium cycling proteins. Furthermore, TH seems to control the response to stress by ...

journal_title：Basic research in cardiology

authors： Pantos C,Mourouzis I,Markakis K,Tsagoulis N,Panagiotou M,Cokkinos DV

更新日期：2008-07-01 00:00:00

abstract：:The aim of this study was to clarify the role of altered diabetic vascular reactivity in ischaemic heart disease. In diabetic condition, the necrotic area of myocardial infarction was significantly extended and myocardial oedema failed to develop after administration of norepinephrine 2 or 48 hours after ligation of t...

journal_title：Basic research in cardiology

authors： Palik I,Koltai MZ,Kolonics I,Wagner M,Pogátsa G

更新日期：1982-09-01 00:00:00

abstract：:Ca2+ overload followed by after-contractions was induced by perfusion of mammalian papillary muscles with O-K0+, high Ca2+ solution. The effect of lipotrophic agents (dexamethasone, indomethacin) or free radical scavengers (alpha-tocopherol, reduced glutathione, synthetic antioxidant) was tested at different stages of...

journal_title：Basic research in cardiology

authors： Saxon ME

更新日期：1985-07-01 00:00:00

abstract：:Necrosis is a type of cell death characterized by a gain in cell volume, swelling of organelles, rupture of the plasma membrane and subsequent loss of intracellular contents. For a long time, the process has been considered as a merely accidental and uncontrolled form of cell death, but accumulating evidence suggests ...

journal_title：Basic research in cardiology

authors： Martinet W,Schrijvers DM,De Meyer GR

更新日期：2011-09-01 00:00:00

abstract：:The stroke volume at rest of 81 test subjects with no evident cardiac or circulatory dysfunction was determined by impedance cardiography and the measurements were repeated after 11 weeks. In order to attain comparable and reproducible conditions, 44 test subjects were chosen who showed heart rates at rest not higher ...

journal_title：Basic research in cardiology

authors： Stick C,Büchsel R

更新日期：1978-11-01 00:00:00

abstract：:The effects of a c-myc antisense phosphorothioate DNA oligonucleotide were assessed on the proliferation rate of human arterial smooth muscle cells (HSMCs). Compared to a control oligonucleotide the antisense oligonucleotide suppressed the proliferation of HSMCs in a concentration-dependent manner without a major cyto...

journal_title：Basic research in cardiology

authors： Ebbecke M,Unterberg C,Buchwald A,Stöhr S,Wiegand V

更新日期：1992-11-01 00:00:00

abstract：:Myocardial lipoprotein lipase (LPL) activity during ischaemia has not been fully understood, although it plays an important role in regulating myocardial fatty acid metabolism. In this experiment, the effects of ischaemia (Experiment A) and anoxia (Experiment B) on two distinct fractions of LPL, i.e. functional and no...

journal_title：Basic research in cardiology

authors： Mochizuki S,Murase T,Yamaoka H,Ishiki M,Tada N,Nagano M

更新日期：1987-01-01 00:00:00

abstract：:Cardiac disease is associated with deleterious emission of mitochondrial reactive oxygen species (mito-ROS), as well as enhanced oxidation and activity of the sarcoplasmic reticulum (SR) Ca2+ release channel, the ryanodine receptor (RyR2). The transfer of Ca2+ from the SR via RyR2 to mitochondria is thought to play a ...

journal_title：Basic research in cardiology

authors： Hamilton S,Terentyeva R,Martin B,Perger F,Li J,Stepanov A,Bonilla IM,Knollmann BC,Radwański PB,Györke S,Belevych AE,Terentyev D

更新日期：2020-05-22 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