Hydrogen peroxide and hydroxyl radical mediation of activated leukocyte depression of cardiac sarcoplasmic reticulum. Participation of the cyclooxygenase pathway.

abstract：:Nonlaminar flow is a major predisposing factor to atherosclerosis. Yet little is known regarding hemodynamic gene regulation in disease-prone areas of the vascular tree in vivo. We have determined spatial patterns of expression of endothelial cell receptors in the arterial tree and of reporter gene constructs in trans...

journal_title：Circulation research

authors： Porat RM,Grunewald M,Globerman A,Itin A,Barshtein G,Alhonen L,Alitalo K,Keshet E

更新日期：2004-02-20 00:00:00

abstract：:High sodium intake (HNa) increases brain ouabainlike activity (OLA) in rats. In spontaneously hypertensive rats (SHR), HNa exaggerates development of hypertension and pressor and sympathoexcitatory responses to stress. To investigate whether dietary sodium-induced changes in brain OLA play a functional role, responses...

journal_title：Circulation research

authors： Huang BS,Leenen FH

更新日期：1992-02-01 00:00:00

abstract：RATIONALE:We previously discovered several phosphorylations to the beta subunit of the mitochondrial F(1)F(o) ATP synthase complex in isolated rabbit myocytes on adenosine treatment, an agent that induces cardioprotection. The role of these phosphorylations is unknown. OBJECTIVE:The present study focuses on the functi...

journal_title：Circulation research

authors： Kane LA,Youngman MJ,Jensen RE,Van Eyk JE

更新日期：2010-02-19 00:00:00

abstract：:Previous studies have demonstrated that cGMP and cAMP reduce the endothelial permeability for fluids and macromolecules when the endothelial permeability is increased by thrombin. In this study, we have investigated the mechanism by which cGMP improves the endothelial barrier function and examined whether nitric oxide...

journal_title：Circulation research

authors： Draijer R,Atsma DE,van der Laarse A,van Hinsbergh VW

更新日期：1995-02-01 00:00:00

abstract：:Understanding relationships between heart failure and arrhythmias, important causes of suffering and sudden death, remains an unmet goal for biomedical researchers and physicians. Evidence assembled over the past decade supports a view that activation of the multifunctional Ca(2+) and calmodulin-dependent protein kina...

journal_title：Circulation research

authors： Swaminathan PD,Purohit A,Hund TJ,Anderson ME

更新日期：2012-06-08 00:00:00

abstract：:The smooth muscle myosin heavy chain (SM-MHC) gene encodes a major contractile protein whose expression exclusively marks the smooth muscle cell (SMC) lineage. To better understand smooth muscle differentiation at the transcriptional level, we have initiated studies to identify those DNA sequences critical for express...

journal_title：Circulation research

authors： Madsen CS,Regan CP,Hungerford JE,White SL,Manabe I,Owens GK

更新日期：1998-05-04 00:00:00

abstract：RATIONALE:Mammalian cardiomyocytes withdraw from the cell cycle during early postnatal development, which significantly limits the capacity of the adult mammalian heart to regenerate after injury. The regulatory mechanisms that govern cardiomyocyte cell cycle withdrawal and binucleation are poorly understood. OBJECTIV...

journal_title：Circulation research

authors： Porrello ER,Johnson BA,Aurora AB,Simpson E,Nam YJ,Matkovich SJ,Dorn GW 2nd,van Rooij E,Olson EN

更新日期：2011-09-02 00:00:00

abstract：:Ventricular muscle fibers from dog hearts were superfused with K+-free, high Ca2+ solutions after exposure to a K+-free, Ca2+-free superfusate. Following a series of driven action potentials, oscillatory after potentials (OAPs) were elicited in all 40 preparations at a resting potential of greater than -60 mV. The OAP...

journal_title：Circulation research

authors： Hiraoka M,Okamoto Y,Sano T

更新日期：1981-04-01 00:00:00

abstract：RATIONALE:Yes-associated protein (YAP), the terminal effector of the Hippo signaling pathway, is crucial for regulating embryonic cardiomyocyte proliferation. OBJECTIVE:We hypothesized that YAP activation after myocardial infarction (MI) would preserve cardiac function and improve survival. METHODS AND RESULTS:We use...

journal_title：Circulation research

authors： Lin Z,von Gise A,Zhou P,Gu F,Ma Q,Jiang J,Yau AL,Buck JN,Gouin KA,van Gorp PR,Zhou B,Chen J,Seidman JG,Wang DZ,Pu WT

更新日期：2014-07-18 00:00:00

abstract：:A mathematical model for the regulation of mechanical activity in cardiac muscle has been developed based on a three-element rheological model of this muscle. The contractile element has been modeled taking into account the results of extensive mechanical tests that involved the recording of length-force and force-vel...

journal_title：Circulation research

authors： Izakov VYa,Katsnelson LB,Blyakhman FA,Markhasin VS,Shklyar TF

更新日期：1991-11-01 00:00:00

abstract：:The effects of sodium pump inhibition produced by exposure to the cardiac glycosides, ouabain or dihydroouabain, or by reduction in extracellular potassium to 1.0 mM, on contractile state and sodium-calcium exchange were studied in primary monolayer cultures of chick embryo ventricular cells. Ouabain, 10(-6)M, dihydro...

journal_title：Circulation research

authors： Barry WH,Hasin Y,Smith TW

更新日期：1985-02-01 00:00:00

abstract：:The pathogenesis of atherosclerosis and abdominal aortic aneurysm involves substantial proteolysis of the arterial extracellular matrix. The lysosomal cysteine proteases can exert potent elastolytic and collagenolytic activity. Human atherosclerotic plaques have increased cysteine protease content and decreased levels...

journal_title：Circulation research

authors： Sukhova GK,Wang B,Libby P,Pan JH,Zhang Y,Grubb A,Fang K,Chapman HA,Shi GP

更新日期：2005-02-18 00:00:00

abstract：:To investigate the contributions of humoral and hemodynamic factors to cardiac adaptations associated with chronic exercise, female Fischer 344 rats were subjected to chronic swimming, infrarenal cardiac transplantation, or both. Swimming resulted in hypertrophy (11-12%) of the in situ hearts in both the unoperated an...

journal_title：Circulation research

authors： Advani SV,Geenen D,Malhotra A,Factor SM,Scheuer J

更新日期：1990-09-01 00:00:00

abstract：:Hemodynamics play an important role in cardiovascular development, and changes in blood flow can cause congenital heart malformations. The endothelium and endocardium are subjected to mechanical forces, of which fluid shear stress is correlated to blood flow velocity. The shear stress responsive genes lung Krüppel-lik...

journal_title：Circulation research

authors： Groenendijk BC,Hierck BP,Vrolijk J,Baiker M,Pourquie MJ,Gittenberger-de Groot AC,Poelmann RE

更新日期：2005-06-24 00:00:00

abstract：:Although the ultrasonic pulsatility index (PI) is used as a test of arterial inflow, the relationship between proximal arterial stenosis and PI has not been fully evaluated. In a series of experiments on dogs, over 200 measurements of pressure, flow (using an indwelling electromagnetic flowmeter), and PI were made dis...

journal_title：Circulation research

authors： Evans DH,Barrie WW,Asher MJ,Bentley S,Bell PR

更新日期：1980-04-01 00:00:00

abstract：:Hypoxia is a potent coronary-vasodilating signal; its mechanisms are still controversial. We have assessed the possible role of nitric oxide (NO) in hypoxic coronary vasodilatation (HCVD) in isolated guinea pig hearts perfused at constant pressure. HCVD was elicited by a 1-minute 100% N2 exposure; coronary flow double...

journal_title：Circulation research

authors： Park KH,Rubin LE,Gross SS,Levi R

更新日期：1992-10-01 00:00:00

abstract：RATIONALE:Shear stress (SS) has an established role in atherosclerotic plaque localization, but how it exerts its protective effect is not fully understood. OBJECTIVE:To test the hypothesis that SS may downregulate angiotensin type 1 receptors (AT(1)Rs). Angiotensin II has been shown to be proinflammatory and to promo...

journal_title：Circulation research

authors： Ramkhelawon B,Vilar J,Rivas D,Mees B,de Crom R,Tedgui A,Lehoux S

更新日期：2009-10-23 00:00:00

abstract：:Oxidative stress has been suggested to potentiate atherogenesis. However, studies that have investigated the effect of antioxidants on atherosclerosis showed inconsistent results, ie, atherosclerosis was either retarded or not changed by dietary antioxidants. This report directly examined the effect of overexpressing ...

journal_title：Circulation research

authors： Yang H,Roberts LJ,Shi MJ,Zhou LC,Ballard BR,Richardson A,Guo ZM

更新日期：2004-11-26 00:00:00

abstract：RATIONALE:Activation of the mitochondrial ATP-sensitive potassium channel (mitoK(ATP)) has been implicated in the mechanism of cardiac ischemic preconditioning, yet its molecular composition is unknown. OBJECTIVE:To use an unbiased proteomic analysis of the mitochondrial inner membrane to identify the mitochondrial K(...

journal_title：Circulation research

authors： Foster DB,Ho AS,Rucker J,Garlid AO,Chen L,Sidor A,Garlid KD,O'Rourke B

更新日期：2012-08-03 00:00:00

abstract：RATIONALE:Proteasomal degradation is altered in many disease phenotypes including cardiac hypertrophy, a prevalent condition leading to heart failure. Our recent investigations identified heterogeneous subpopulations of proteasome complexes in the heart and implicated multiple mechanisms for their regulation. OBJECTIV...

journal_title：Circulation research

authors： Drews O,Tsukamoto O,Liem D,Streicher J,Wang Y,Ping P

更新日期：2010-10-29 00:00:00

abstract：:Ultrarapid freezing has been applied to monitor the structure of the freeze-fractured myocardial sarcolemma. Our two goals were to demonstrate that large areas of membrane can be preserved free of visible ice crystal damage and, thus, be amenable to quantitative analysis and to compare the structure of directly frozen...

journal_title：Circulation research

authors： Frank JS,Beydler S,Mottino G

更新日期：1987-07-01 00:00:00

abstract：RATIONALE:Remote ischemic preconditioning (rIPC) with short episodes of ischemia/reperfusion (I/R) of an organ remote from the heart is a powerful approach to protect against myocardial I/R injury. The signal transduction pathways for the cross talk between the remote site and the heart remain unclear in detail. OBJEC...

journal_title：Circulation research

authors： Rassaf T,Totzeck M,Hendgen-Cotta UB,Shiva S,Heusch G,Kelm M

更新日期：2014-05-09 00:00:00

abstract：:Phenotypic switching of vascular smooth muscle cells (VSMCs) is known to play a critical role in the development of atherosclerosis. However, the factors present within lesions that mediate VSMC phenotypic switching are unclear. Oxidized phospholipids (OxPLs), including 1-palmitoyl-2-(5-oxovaleroyl)-sn-glycero-3-phosp...

journal_title：Circulation research

authors： Cherepanova OA,Pidkovka NA,Sarmento OF,Yoshida T,Gan Q,Adiguzel E,Bendeck MP,Berliner J,Leitinger N,Owens GK

更新日期：2009-03-13 00:00:00

abstract：:During ischemia and reperfusion, with an increase in intracellular Na+ and a depolarized membrane potential, Ca2+ may enter the myocyte in exchange for intracellular Na+ via reverse-mode Na+-Ca2+ exchange (NCX). To test the role of Ca2+ entry via NCX during ischemia and reperfusion, we studied mice with cardiac-specif...

journal_title：Circulation research

authors： Imahashi K,Pott C,Goldhaber JI,Steenbergen C,Philipson KD,Murphy E

更新日期：2005-10-28 00:00:00

abstract：:Quinidine is the most commonly used drug for the chronic treatment of ventricular arrhythmias, but it may be arrhythmogenic. Much information exists concerning quinidine's effects on active properties in cardiac tissues, but virtually nothing is known of its effects on passive properties. We studied the effects of qui...

journal_title：Circulation research

authors： Arnsdorf MF,Sawicki GJ

更新日期：1987-08-01 00:00:00

abstract：:To determine the relative importance of protein degradation in the development of starvation-induced cardiac atrophy, in vivo fractional synthetic rates of total cardiac protein, myosin heavy chain, actin, light chain 1, and light chain 2 were measured in fed and fasted rabbits by continuous infusion of [3H] leucine. ...

journal_title：Circulation research

authors： Samarel AM,Parmacek MS,Magid NM,Decker RS,Lesch M

更新日期：1987-06-01 00:00:00

abstract：:The purpose of this study was to evaluate the limitations of the double sucrose gap voltage clamp technique in the determination of tension-voltage relationships for frog atrial muscle. Tension-voltage relationships were determined under two conditions. In one case we determined both the tension response and slow inwa...

journal_title：Circulation research

authors： Tarr M,Trank JW

更新日期：1976-07-01 00:00:00

abstract：RATIONALE:The mutation A341V in the S6 transmembrane segment of KCNQ1, the α-subunit of the slowly activating delayed-rectifier K(+) (I(Ks)) channel, predisposes to a severe long-QT1 syndrome with sympathetic-triggered ventricular tachyarrhythmias and sudden cardiac death. OBJECTIVE:Several genetic risk modifiers have...

journal_title：Circulation research

authors： Heijman J,Spätjens RL,Seyen SR,Lentink V,Kuijpers HJ,Boulet IR,de Windt LJ,David M,Volders PG

更新日期：2012-01-20 00:00:00

abstract：:Vasoactive drugs are known to affect impedance (pressure/flow) and vessel wall motion in arteries. The nonlinear theory of oscillatory flow in straight elastic vessels indicates that wall shear rate is affected by changes in impedance phase angle and wall motion. To test whether wall shear rate depends on impedance ph...

journal_title：Circulation research

authors： White KC,Kavanaugh JF,Wang DM,Tarbell JM

更新日期：1994-10-01 00:00:00

abstract：RATIONALE:MicroRNA (miR)-1 and -133 play a crucial role in skeletal and cardiac muscle biology and pathophysiology. However, their expression and regulation in vascular cell physiology and disease is currently unknown. OBJECTIVE:The aim of the present study was to evaluate the role, if any, of miR-1 and miR-133 in vas...

journal_title：Circulation research

authors： Torella D,Iaconetti C,Catalucci D,Ellison GM,Leone A,Waring CD,Bochicchio A,Vicinanza C,Aquila I,Curcio A,Condorelli G,Indolfi C

更新日期：2011-09-30 00:00:00