Search Results - "Urthaler, Ferdinand"

Occupation of the prostaglandin E2-type 1 receptor increases rat atrial contractility via a Y-27632-sensitive pathway by Wolkowicz, Paul E, Ku, David D, Grenett, Heman E, Urthaler, Ferdinand

“…This study investigated whether rat left atria (LA) contain the prostaglandin E2 type 1 receptor (EP1) and whether EP1 occupation induces positive inotropic…”
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2-Tetradecylglycidic Acid, an Inhibitor of Carnitine Palmitoyltransferase-1, Induces Myocardial Hypertrophy via the AT1 Receptor by Wolkowicz, Paul E, Urthaler, Ferdinand, Forrest, Clarence, Shen, Hai, Durand, Joan, Wei, Chih-Chang, Oparil, Suzanne, Dell»Italia, Louis J

“…Activation of the antiogensin II, type 1 (AT1) receptor mediates the myocardial response to numerous hypertrophic stimuli. This study tested the hypothesis…”
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Evidence that 2-aminoethoxydiphenyl borate provokes fibrillation in perfused rat hearts via voltage-independent calcium channels by Wang, Peipei, Umeda, Patrick K., Sharifov, Oleg F., Halloran, Brian A., Tabengwa, Edlue, Grenett, Hernan E., Urthaler, Ferdinand, Wolkowicz, Paul E.

“…We tested whether 2-aminoethoxydiphenyl borate (2-APB) induces arrhythmia in perfused rat hearts and whether this arrhythmia might result from the activation…”
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Pharmacological evidence for Orai channel activation as a source of cardiac abnormal automaticity by Wolkowicz, Paul E., Huang, Jian, Umeda, Patrick K., Sharifov, Oleg F., Tabengwa, Edlue, Halloran, Brian A., Urthaler, Ferdinand, Grenett, Hernan E.

“…Calcium transport through plasma membrane voltage-independent calcium channels is vital for signaling events in non-excitable and excitable cells. Following up…”
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Inhibitors of arachidonate-regulated calcium channel signaling suppress triggered activity induced by the late sodium current by Wolkowicz, Paul, Umeda, Patrick K., Sharifov, Oleg F., Roger White, C., Huang, Jian, Mahtani, Harry, Urthaler, Ferdinand

“…Disturbances in myocyte calcium homeostasis are hypothesized to be one cause for cardiac arrhythmia. The full development of this hypothesis requires (i) the…”
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Prolongation of minimal action potential duration in sustained fibrillation decreases complexity by transient destabilization by Wolkowicz, Paul E, Umeda, Patrick K, Sharifov, Oleg F, Wang, Peipei, Mahtani, Harry, Urthaler, Ferdinand

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Abstract 1084: Myosin Light Chain Kinase Signaling Regulates Ectopic Atrial Activity by Wolkowicz, Paul, Grenett, Hernan E, Huang, Jian, Ku, David D, Urthaler, Ferdinand

“…Abstract only Objective : Determine whether calmodulin (CaM) acts through novel signaling pathways to elicit left atrial ectopic activity. Methods : Rat left…”
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A pharmacological model for calcium overload-induced tachycardia in isolated rat left atria by Wolkowicz, Paul E., Grenett, Hernan E., Huang, Jian, Wu, Hsien Chin, Ku, David D., Urthaler, Ferdinand

“…Few experimental models produce spontaneous tachycardia in normal left atria to allow the study of the cellular mechanisms underlying this contributor to…”
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2-APB Induces Instability in Rat Left Atrial Mechanical Activity by Wolkowicz, Paul E, Wu, Hsien Chin, Urthaler, Ferdinand, Ku, David D

“…Atrial contractile abnormalities are common clinical disorders but few pharmacological models can reliably produce such abnormalities in isolated atrial…”
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Peroxynitrite irreversibly decreases diastolic and systolic function in cardiac muscle by Digerness, Stanley B, Harris, Kevin D, Kirklin, John W, Urthaler, Ferdinand, Viera, Liliana, Beckman, Joseph S, Darley-Usmar, Victor

“…Much of the damaging action of nitric oxide in heart may be due to its diffusion-limited reaction with superoxide to form peroxynitrite. Direct infusion of…”
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15 Rho A-associated kinases modulate atrial contractility by Wolkowicz, Paul E., Ku, David D., Grenett, Hernan E., Urthaler, Ferdinand

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Occupation of the prostaglandin E 2-type 1 receptor increases rat atrial contractility via a Y-27632-sensitive pathway by Wolkowicz, Paul E, Ku, David D, Grenett, Heman E, Urthaler, Ferdinand

“…This study investigated whether rat left atria (LA) contain the prostaglandin E 2 type 1 receptor (EP1) and whether EP1 occupation induces positive inotropic…”
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Morphine and autonomic control of the sinus node by Urthaler, F, Isobe, J H, Gilmour, K E, James, T N

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MDL-28170, a membrane-permeant calpain inhibitor, attenuates stunning and PKCε proteolysis in reperfused ferret hearts by URTHALER, F, WOLKOWICZ, P. E, DIGERNESS, S. B, HARRIS, K. D, WALKER, A. A

“…This paper tests the hypothesis that calpains are activated in the ischemic (I)/reperfused (R) heart and contribute to myocardial stunning. Isolated ferret…”
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FINE STRUCTURE OF MYOTENDINOUS JUNCTIONS OF VENTRICULAR PAPILLARY MUSCLES OF THE CAT (FELIS DOMESTICA) AND BAT (MYOTIS LUCIFUGUS) by KAWAMURA, KEISHIRO, JAMES, THOMAS N., URTHALER, FERDINAND, HEFNER, LLOYD L

“…The ultrastucture of the myotendinous junction (MTJ) of the cardiac papillary muscle was studied in cat and bat. In both species findings were similar for…”
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Ventricular echo beats during ventricular pacing or junctional bradycardia: studies in the normal canine heart by Urthaler, F

“…In 15 adult dogs ventricular echoes were elicited during sinus rhythm by incremental ventricular pacing and during atrioventricular (AV) junctional rhythm by…”
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A stable model of left ventricular dysfunction in an intact animal assessed with high fidelity pressure and cinemagnetic resonance imaging by Dell'Italia, L J, Blackwell, G G, Urthaler, F, Pearce, D J, Pohost, G M

“…Numerous models of acute and chronic left ventricular dysfunction have been used over the years. However, few can produce a rapid onset of global systolic and…”
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Estimates of beat to beat handling of activator calcium using measurements of [Ca2+]i in aequorin loaded ferret cardiac muscle by Urthaler, F, Walker, A A, Reeves, R C, Hefner, L L

“…The aims were (1) to measure simultaneously and on a beat to beat basis intracellular calcium concentration ([Ca2+]i) transients and force transients in…”
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Effects of hypoxia on intracellular calcium and contractility by Urthaler, F, Walker, A A, Reeves, R C, Hefner, L L

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Maximal Twitch Tension in Intact Length-Clamped Ferret Papillary Muscles Evoked by Modified Postextrasystolic Potentiation by Urthaler, Ferdinand, Walker, Alfred A, Reeves, David N.S, Hefner, Lloyd L

“…A modified test of postextrasystolic potentiation achieved with a brief episode of rapid pacing followed by a 6-second pause (RPP maneuver) was used to evoke…”
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