Cardiac physiology in transgenic mice.

abstract：:Because current therapy to treat abdominal aortic aneurysm (AAA), and particularly to manage small AAA, is limited to elective surgical repair, we explored less invasive molecular therapy by simultaneous inhibition of the transcription factors nuclear factor (NF)kappaB and ets using a decoy strategy. Both NFkappaB and...

journal_title：Circulation research

authors： Miyake T,Aoki M,Masaki H,Kawasaki T,Oishi M,Kataoka K,Ogihara T,Kaneda Y,Morishita R

更新日期：2007-11-26 00:00:00

abstract：:The solid angle theory has long been applied to the interpretation of the ECG; however, quantitative evaluation of its applicability has been minimal. We applied solid angle analysis to the interpretation of the TQ-ST deflection during acute ischemia. Five anesthetized pigs were studied 1--3 hours after coronary occlu...

journal_title：Circulation research

authors： Richeson JF,Akiyama T,Schenk E

更新日期：1978-12-01 00:00:00

abstract：:Local alterations in the hemodynamic environment regulate endothelial cell function, but the signal-transduction mechanisms involved in this process remain unclear. Because mitogen-activated protein (MAP) kinases have been shown to be activated by physical forces, we measured the phosphorylation and enzyme activity of...

journal_title：Circulation research

authors： Tseng H,Peterson TE,Berk BC

更新日期：1995-11-01 00:00:00

abstract：:Calcium channel blockers are among the most commonly used therapeutic drugs. Nevertheless, the utility of calcium channel blockers for heart disease is limited because of the potent vasodilatory effect that causes hypotension, and other side effects attributable to blockade of noncardiac channels. Therefore, focal cal...

journal_title：Circulation research

authors： Murata M,Cingolani E,McDonald AD,Donahue JK,Marbán E

更新日期：2004-08-20 00:00:00

abstract：RATIONALE:The ventricular conduction system controls the propagation of electric activity through the heart to coordinate cardiac contraction. This system is composed of specialized cardiomyocytes organized in defined structures including central components and a peripheral Purkinje fiber network. How the mammalian ven...

journal_title：Circulation research

authors： Miquerol L,Moreno-Rascon N,Beyer S,Dupays L,Meilhac SM,Buckingham ME,Franco D,Kelly RG

更新日期：2010-07-09 00:00:00

abstract：:Deepak Srivastava’s group at the Gladstone Institute of Cardiovascular Disease, University of California San Francisco, reported in the August 6 issue of the journal Cell that to make heart muscle cells, all you need are three factors and some fibroblasts. But is it really that easy? ...

journal_title：Circulation research

authors： Williams R

更新日期：2010-10-29 00:00:00

abstract：:Controversy exists regarding the mechanism by which catecholamines stimulate renin secretion in vivo. A sensitive rat kidney slice system was utilized to study the direct effects of adrenergic agonists and antagonists on renin release in vitro. Catecholamines were protected from degradation by the addition of ascorbic...

journal_title：Circulation research

authors： Weinberger MH,Aoi W,Henry DP

更新日期：1975-09-01 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：:We studied the effects of rapid atrial pacing during the final 10 minutes of a 70-minute, 31% reduction in coronary blood flow in anesthetized swine to understand the significance of apparent metabolic improvements during the initial 60 minutes of segmental ischemia. Within 5-10 minutes of ischemia, subendocardial pho...

journal_title：Circulation research

authors： Arai AE,Pantely GA,Anselone CG,Bristow J,Bristow JD

更新日期：1991-12-01 00:00:00

abstract：:A number of neurotransmitters modulate cardiac dihydropyridine-sensitive L-type Ca2+ channels through several homologous G protein-coupled receptors. Previous studies that have examined receptor-Ca2+ channel interactions have suffered because of the coexpression of various receptor subtypes in native cells. To study t...

journal_title：Circulation research

authors： Yatani A,Wakamori M,Niidome T,Yamamoto S,Tanaka I,Mori Y,Katayama K,Green S

更新日期：1995-03-01 00:00:00

abstract：RATIONALE:Upregulation of endothelial vascular cell adhesion molecule (VCAM)-1 and the subsequent increase in monocyte recruitment constitute critical events in atherogenesis. We have recently shown that in human coronary artery endothelial cells (HCAECs) regulated expression of VCAM-1 depends, to a significant extent,...

journal_title：Circulation research

authors： Smedlund K,Tano JY,Vazquez G

更新日期：2010-05-14 00:00:00

abstract：:The patch-clamp technique was used to examine the inhibition of delayed rectifier K+ channels by agents that release intracellular Ca2+. During voltage-clamp experiments on isolated myocytes with 4-aminopyridine (4-AP, 10 mmol/L) and niflumic acid (100 mumol/L) present to inhibit delayed rectifier K+ current (IK(dr)) ...

journal_title：Circulation research

authors： Gelband CH,Hume JR

更新日期：1995-07-01 00:00:00

abstract：:We hypothesized that a redox-sensitive transcription factor, redox factor-1 (Ref-1) (HAP1, APE, and APEX), was critical in the regulation of endothelial cell survival in response to hypoxia and cytokines, including tumor necrosis factor (TNF)-alpha. Hypoxia resulted in a significant decrease in Ref-1 protein expressio...

journal_title：Circulation research

authors： Hall JL,Wang X,Van Adamson,Zhao Y,Gibbons GH

更新日期：2001-06-22 00:00:00

abstract：:The type 1B angiotensin II (AT1B) receptor cloned from rat kidney was stably expressed in Chinese hamster ovary cells. The stably expressed receptor was characterized by radioligand binding studies and functional coupling to inositol 1,4,5-triphosphate (IP3) formation. Exposure of cells expressing the AT1B receptor to...

journal_title：Circulation research

authors： Tang H,Shirai H,Inagami T

更新日期：1995-08-01 00:00:00

abstract：:Recent evidence shows that circulating granulocytes play an important role in capillary stasis and tissue injury. We investigated two aspects of the problem in a Wiggers hemorrhagic shock model of the rat: the survival rate and the microvascular no-reflow phenomenon. A conventional group of rats with normal blood cell...

journal_title：Circulation research

authors： Barroso-Aranda J,Schmid-Schönbein GW,Zweifach BW,Engler RL

更新日期：1988-08-01 00:00:00

abstract：:Arteries from deoxycorticosterone acetate (DOCA)-salt and N(omega)-nitro-L-arginine (L-NNA) hypertensive but not normotensive rats develop spontaneous tone. LY294002 and wortmannin, phosphoinositide 3-kinase (PI3-kinase) inhibitors, eliminate spontaneous tone. We hypothesized that PI3-kinase protein and/or activity wa...

journal_title：Circulation research

authors： Northcott CA,Poy MN,Najjar SM,Watts SW

更新日期：2002-08-23 00:00:00

abstract：:After myocardial infarction (MI), the noninfarcted myocardium undergoes significant hypertrophy as part of the post-MI structural remodeling. Electrophysiological changes associated with the hypertrophied remodeled myocardium may play a key role in arrhythmia generation in the post-MI heart. We investigated the cellul...

journal_title：Circulation research

authors： Qin D,Zhang ZH,Caref EB,Boutjdir M,Jain P,el-Sherif N

更新日期：1996-09-01 00:00:00

abstract：:Inducible nitric oxide synthase (iNOS) protein is expressed in cardiac myocytes of patients and experimental animals with congestive heart failure (CHF). Here we show that iNOS expression plays a role in pressure overload-induced myocardial chamber dilation and hypertrophy. In wild-type mice, chronic transverse aortic...

journal_title：Circulation research

authors： Zhang P,Xu X,Hu X,van Deel ED,Zhu G,Chen Y

更新日期：2007-04-13 00:00:00

abstract：:We performed morphological studies of myocardial contracture to define its nature and relationship to mechanical changes occurring during metabolic blockade. Isolated rat papillary and trabecular muscles were stretched to the apices of their length-tension curves and stimulated to contract isometrically 12 times a min...

journal_title：Circulation research

authors： Bing OH,Fishbein MC

更新日期：1979-08-01 00:00:00

abstract：:We previously have shown that alpha-adrenergic stimulation of canine Purkinje fibers and rat ventricle decreases automaticity. Experiments on rat ventricular myocytes in tissue culture have suggested that the decrease in automaticity induced by alpha-adrenergic stimulation depends on the development of sympathetic inn...

journal_title：Circulation research

authors： Rosen MR,Steinberg SF,Chow YK,Bilezikian JP,Danilo P Jr

更新日期：1988-02-01 00:00:00

abstract：:The molecular identity of receptor-operated, nonselective cation channels (ROCs) of vascular smooth muscle (VSM) cells is not known for certain. Mammalian homologues of the Drosophila canonical transient receptor potential channels (TRPCs) are possible candidates. This study tested the hypothesis that heteromultimeric...

journal_title：Circulation research

authors： Maruyama Y,Nakanishi Y,Walsh EJ,Wilson DP,Welsh DG,Cole WC

更新日期：2006-06-23 00:00:00

abstract：:We studied the specificity of uptake of infarct-imaging agents for reversibly or irreversibly injured myocardium independently of blood flow by using intact beating fetal mouse hearts in organ culture. Reversible injury resulted from deprivation of oxygen and glucose for 4 hours at 37 degrees C; irreversible injury, f...

journal_title：Circulation research

authors： Schelbert HR,Ingwall JS,Sybers HD,Ashburn WL

更新日期：1976-12-01 00:00:00

abstract：RATIONALE:Mitochondria are key integrators of convergent intracellular signaling pathways. Two important second messengers modulated by mitochondria are calcium and reactive oxygen species. To date, coherent mechanisms describing mitochondrial integration of calcium and oxidative signaling in arterial smooth muscle are...

journal_title：Circulation research

authors： Chaplin NL,Nieves-Cintrón M,Fresquez AM,Navedo MF,Amberg GC

更新日期：2015-12-04 00:00:00

abstract：:Despite intense interest in understanding the differentiation of vascular smooth muscle, very little is known about the cellular and molecular mechanisms that control differentiation of this cell type. Progress in this field has been hampered by the lack of an inducible in vitro system for study of the early steps of ...

journal_title：Circulation research

authors： Blank RS,Swartz EA,Thompson MM,Olson EN,Owens GK

更新日期：1995-05-01 00:00:00

abstract：:Mast cells in rat hearts were studied quantitatively during normal postnatal growth and in two types of cardiac hypertrophy. Normally, cardiac mast cell density in 11-12-day-old animals is very low, but increases markedly in the following 2-3 weeks to its highest values, with a subsequent decline toward adult values. ...

journal_title：Circulation research

authors： Rakusan K,Sarkar K,Turek Z,Wicker P

更新日期：1990-02-01 00:00:00

abstract：:Rat lungs were inflated and incubated in either anionic or cationic ferritin, and alveolar and capillary basement membranes were examined by electron microscopy. Cationic ferritin bound to heparan sulfate proteoglycans on the external surface of the alveolar basement membrane, whereas cationic ferritin bound to the la...

journal_title：Circulation research

authors： Brody JS,Vaccaro CA,Hill NS,Rounds S

更新日期：1984-08-01 00:00:00

abstract：RATIONALE:Despite significant interest in bone marrow mononuclear cell (BMC) therapy for ischemic heart disease, current techniques have resulted in only modest benefits. However, selected patients have shown improvements after autologous BMC therapy, but the contributing factors are unclear. OBJECTIVE:The purpose of ...

journal_title：Circulation research

authors： Schutt RC,Trachtenberg BH,Cooke JP,Traverse JH,Henry TD,Pepine CJ,Willerson JT,Perin EC,Ellis SG,Zhao DX,Bhatnagar A,Johnstone BH,Lai D,Resende M,Ebert RF,Wu JC,Sayre SL,Orozco A,Zierold C,Simari RD,Moyé L,Cogle

更新日期：2015-01-02 00:00:00

abstract：RATIONALE:Circumstantial evidence links the development of heart failure to posttranslational modifications of mitochondrial proteins, including lysine acetylation (Kac). Nonetheless, direct evidence that Kac compromises mitochondrial performance remains sparse. OBJECTIVE:This study sought to explore the premise that ...

journal_title：Circulation research

authors： Davidson MT,Grimsrud PA,Lai L,Draper JA,Fisher-Wellman KH,Narowski TM,Abraham DM,Koves TR,Kelly DP,Muoio DM

更新日期：2020-09-25 00:00:00

abstract：:Body surface electrocardiograms and electrograms recorded from the surfaces of the heart are the basis for diagnosis and treatment of cardiac electrophysiological disorders and arrhythmias. Given recent advances in understanding the molecular mechanisms of arrhythmia, it is important to relate these electrocardiograph...

journal_title：Circulation research

authors： Gima K,Rudy Y

更新日期：2002-05-03 00:00:00

abstract：:The transcription factor signal transducer and activator of transcription 3 (STAT3) participates in a wide variety of physiological processes and directs seemingly contradictory responses such as proliferation and apoptosis. To elucidate its role in the heart, we generated mice harboring a cardiomyocyte-restricted kno...

journal_title：Circulation research

authors： Hilfiker-Kleiner D,Hilfiker A,Fuchs M,Kaminski K,Schaefer A,Schieffer B,Hillmer A,Schmiedl A,Ding Z,Podewski E,Podewski E,Poli V,Schneider MD,Schulz R,Park JK,Wollert KC,Drexler H

更新日期：2004-07-23 00:00:00