Vardenafil increases coronary flow response to hypercapnic acidosis in isolated guinea pig heart.

abstract：:To investigate the effect of nifedipine on hypercalcemic electrocardiographical alterations, steadily increasing hypercalcemia was induced in guinea-pigs by continuous calcium gluconate infusion until cardiac arrest occurred. During the experimental time the electrocardiograms were continuously recorded and compared i...

journal_title：Basic research in cardiology

authors： Schäfer W,Schäfer A,Schäfer H

更新日期：1982-01-01 00:00:00

abstract：:Receptor for advanced glycation end products (RAGE) is associated with inflammation and the progression of cardiovascular diseases. The current study tested the hypothesis that RAGE is involved in the pathogenesis of aortic valve (AV) calcification. Pioglitazone attenuated AV calcification in experimental hypercholest...

journal_title：Basic research in cardiology

authors： Li F,Cai Z,Chen F,Shi X,Zhang Q,Chen S,Shi J,Wang DW,Dong N

更新日期：2012-11-01 00:00:00

abstract：:DNA-dependent protein kinase catalytic subunit (DNA-PKcs) is a novel inducer to promote mitochondrial apoptosis and suppress tumor growth in a variety of cells although its role in cardiovascular diseases remains obscure. This study was designed to examine the role of DNA-PKcs in cardiac ischemia reperfusion (IR) inju...

journal_title：Basic research in cardiology

authors： Zhou H,Toan S,Zhu P,Wang J,Ren J,Zhang Y

更新日期：2020-01-09 00:00:00

abstract：:N,N-dimethylsphingosine (DMS) has been documented to be in vitro protective against myocardial ischemia-reperfusion injury (IRI) and can recruit CD4(+)CD25(+)Foxp3(+) regulatory T cells (Tregs), which may participate in the cardioprotection. We hypothesized that when in vivo applied after a myocardial ischemia, DMS ma...

journal_title：Basic research in cardiology

authors： Fang J,Hu F,Ke D,Yan Y,Liao Z,Yuan X,Wu L,Jiang Q,Chen L

更新日期：2016-05-01 00:00:00

abstract：:The flow pattern and the paths of fluid particles in a saccular aneurysm located at the bifurcation of an intracranial arterial segment are investigated with a numerical method. A normal physiological flow pattern was assumed as input to the studied segment. The theoretical study is carried out for two different Reyno...

journal_title：Basic research in cardiology

authors： Perktold K,Kenner T,Hilbert D,Spork B,Florian H

更新日期：1988-01-01 00:00:00

abstract：:Six dogs were subjected to an acute stenosis of the left anterior descending coronary artery. The mean aortic pressure was fixed with a windkessel and an occluder on four different levels. A significant decrease of coronary blood flow and poststenotic coronary pressure was closely related to the level of mean aortic ...

journal_title：Basic research in cardiology

authors： Dietze W,Mittmann U,Schmier J,Wirth RH

更新日期：1976-05-01 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：:In this paper, we review the hypothesis that activated tissue renin-angiotensin systems play a detrimental role in heart failure. The main arguments for this idea are discussed: a) tissue renin-angiotensin systems behave functionally distinct from the circulating renin-angiotensin system; b) tissue renin-angiotensin s...

journal_title：Basic research in cardiology

authors： Pinto YM,Buikema H,van Gilst WH,Lie KI

更新日期：1996-01-01 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：:The assessment of proarrhythmic risks of drugs remains challenging. To evaluate the suitability of rat engineered heart tissue (EHT) for detecting proarrhythmic effects. We monitored drug effects on spontaneous contractile activity and, in selected cases, on action potentials (sharp microelectrode) and Ca2+ transients...

journal_title：Basic research in cardiology

authors： Eder A,Hansen A,Uebeler J,Schulze T,Neuber C,Schaaf S,Yuan L,Christ T,Vos MA,Eschenhagen T

更新日期：2014-01-01 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：:Recent studies demonstrated that NADPH oxidase 2 (NOX2) expression in myocardium after ischemia-reperfusion (IR) is significantly upregulated. However, the underlying mechanisms remain unknown. This study aims to determine if nuclear cardiac myosin light chain 2 (MYL2), a well-known regulatory subunit of myosin, funct...

journal_title：Basic research in cardiology

authors： Zhang YS,Liu B,Luo XJ,Li TB,Zhang JJ,Peng JJ,Zhang XJ,Ma QL,Hu CP,Li YJ,Peng J,Li Q

更新日期：2015-01-01 00:00:00

abstract：:Recent findings on the induction of anti-apoptotic gene expression in ischemic/reperfused hearts encouraged us to investigate whether ischemic/reperfused hearts may be protected against apoptosis induction. To analyze this hypothesis we performed studies on isolated perfused hearts of rat. For apoptosis induction, hea...

journal_title：Basic research in cardiology

authors： Hofstaetter B,Taimor G,Inserte J,Garcia-Dorado D,Piper HM

更新日期：2002-11-01 00:00:00

abstract：:Previous studies indicated that the increase in protein kinase C (PKC)-mediated myofilament protein phosphorylation observed in failing myocardium might be detrimental for contractile function. This study was designed to reveal and compare the effects of PKCalpha- and PKCepsilon-mediated phosphorylation on myofilament...

journal_title：Basic research in cardiology

authors： Kooij V,Boontje N,Zaremba R,Jaquet K,dos Remedios C,Stienen GJ,van der Velden J

更新日期：2010-03-01 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：:The carnitine system functions in the transport of activated acyl groups over the mitochondrial inner membrane, and is needed for oxidation of long-chain fatty acids by all mitochondria. The rate of cardiac fatty acid oxidation is determined by availability of fatty acids, oxygen and the activity of carnitine palmitoy...

journal_title：Basic research in cardiology

authors： Scholte HR,Luyt-Houwen IE,Vaandrager-Verduin MH

更新日期：1987-01-01 00:00:00

abstract：:The purpose of this study was to determine the effects of bradykinin (BK), substance P (SP) and histamine on plasma exudation in the skin of conscious dogs with and without pacing-induced heart failure. We also determined the role tissue angiotensin I-converting enzyme (ACE) and neutral endopeptidase (NEP) play in mod...

journal_title：Basic research in cardiology

authors： Rubinstein I,Müns G,Zucker IH

更新日期：1994-09-01 00:00:00

abstract：:Adult epicardial cells are required for endogenous cardiac repair. After myocardial injury, they are reactivated, undergo epithelial-to-mesenchymal transformation (EMT) and migrate into the injured myocardium where they generate various cell types, including coronary smooth muscle cells and cardiac interstitial fibrob...

journal_title：Basic research in cardiology

authors： Bax NA,van Oorschot AA,Maas S,Braun J,van Tuyn J,de Vries AA,Groot AC,Goumans MJ

更新日期：2011-09-01 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：:The available data clearly suggest large alterations in myocardial eicosanoid generation during myocardial ischaemia and demonstrate important actions of eicosanoids on myocardial function during ischaemic conditions. These actions include direct effects on the injured myocardium as well as influences on other target ...

journal_title：Basic research in cardiology

authors： Schrör K

更新日期：1987-01-01 00:00:00

abstract：:In situ hearts and isolated cardiomyocytes from heterozygous connexin 43-deficient (Cx43+/-) mice cannot be protected by ischemic preconditioning or diazoxide. We have now addressed the role of connexin 43 in ischemic postconditioning (PC). Wild type (WT) and Cx43+/- mice were subjected to 30 min coronary occlusion an...

journal_title：Basic research in cardiology

authors： Heusch G,Büchert A,Feldhaus S,Schulz R

更新日期：2006-07-01 00:00:00

abstract：:Sarcoplasmic reticulum (SR) from left ventricles of rats that developed spontaneous hypertension was studied in vitro. Similar increases of left ventricular mass were found when grouping the animals into mild and severe hypertensives (average systolic arterial pressure of 168 +/- 4 and 202 +/- 6 mmHg, respectively). T...

journal_title：Basic research in cardiology

authors： Cuneo ME,Grassi de Gende AO

更新日期：1988-05-01 00:00:00

abstract：:Dietary intake of unsaturated fatty acid of eicosapentaenoic acid (EPA) is thought to reduce the size and incidence of myocardial infarction. These beneficial effects are postulated to be due to chronic antithrombotic properties of EPA itself. We studied the possible direct effects of EPA on vascular smooth muscle as ...

journal_title：Basic research in cardiology

authors： Yanagisawa A,Lefer AM

更新日期：1987-03-01 00:00:00

abstract：:In recent years research has shown that muscle is capable of reacting to mechanical stimuli by altering biochemical processes. Myocardium is probably the source of a biochemical factor, or factors which activate myocardial protein synthesis. In experimentally induced cardiac hypertrophy adaptive alterations have been ...

journal_title：Basic research in cardiology

authors： Kölbel F,Schreiber V

更新日期：1983-07-01 00:00:00

abstract：:We have recently gained evidence that segmental coronary microvascular diameters, and therefore resistances, are controlled by myogenic and endothelial responses to pressure and flow. Furthermore, intact heart studies are demonstrating that these mechanisms may interact importantly with the metabolic mechanisms primar...

journal_title：Basic research in cardiology

authors： Jones CJ,Kuo L,Davis MJ,Chilian WM

更新日期：1993-01-01 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：: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：: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：: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：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