Myocardial oxygenation in dogs during partial and complete coronary artery occlusion.

abstract：:Cardiac hemodynamics, diameter, blood flow velocity, and volumic flow of the brachial artery were studied before and after diltiazem administration in 11 patients with sustained essential hypertension. The study was compared with the hemodynamic effects of dihydralazine. The caliber of the brachial artery was evaluate...

journal_title：Circulation research

authors： Safar ME,Simon AC,Levenson JA,Cazor JL

更新日期：1983-02-01 00:00:00

abstract：:This study addresses the structural requirements for the intracellular processing and receptor binding properties of endothelin-1 (ET-1). Point mutants of preproendothelin-1 cDNA, with replacement of the codons for Lys9 of ET-1 by ones for Ala and Glu and of Ile20 and Trp21 by ones encoding Ala, were expressed in COS-...

journal_title：Circulation research

authors： Ergul A,Tackett RL,Puett D

更新日期：1995-12-01 00:00:00

abstract：RATIONALE:Molecular imaging is useful for longitudinal assessment of engraftment. However, it is not known which factors, other than cell number, can influence the molecular imaging signal obtained from reporter genes. OBJECTIVE:The effects of cell dissociation/suspension on cellular bioenergetics and the signal obtai...

journal_title：Circulation research

authors： Chang C,Chan A,Lin X,Higuchi T,Terrovitis J,Afzal JM,Rittenbach A,Sun D,Vakrou S,Woldemichael K,O'Rourke B,Wahl R,Pomper M,Tsui B,Abraham MR

更新日期：2013-02-01 00:00:00

abstract：:To assess the relation between atrial natriuretic peptide and ventricular dysfunction, we simultaneously measured both atrial and plasma immunoreactive atrial natriuretic peptide concentrations in rats 4 weeks after myocardial infarction induced by left coronary artery ligation. When compared to controls (n = 39), rat...

journal_title：Circulation research

authors： Tsunoda K,Hodsman GP,Sumithran E,Johnston CI

更新日期：1986-09-01 00:00:00

abstract：:The remodeling of ventricular gap junctions, as defined by changes in size, distribution, or function, is a prominent feature of diseased myocardium. However, the regulation of assembly and maintenance of gap junctions remains poorly understood. To investigate N-cadherin function in the adult myocardium, we used a flo...

journal_title：Circulation research

authors： Li J,Patel VV,Kostetskii I,Xiong Y,Chu AF,Jacobson JT,Yu C,Morley GE,Molkentin JD,Radice GL

更新日期：2005-09-02 00:00:00

abstract：:We studied product inhibition of the actin-activated ATPase of myosin subfragment-1 (S-1) from the three types of muscle tissue: skeletal, cardiac, and smooth. Increasing levels of [MgADP] in the 0-1-mM range caused significant inhibition of the actin-activated MgATPase activity of cardiac and gizzard but not skeletal...

journal_title：Circulation research

authors： Drew JS,Harwalkar VA,Stein LA

更新日期：1992-11-01 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：:We determined the effects of changing the spatial dispersion of acetylcholine release on the phase-dependent chronotropic responses to vagal stimulation in anesthetized dogs. We stimulated the vagus nerves with one brief burst of electrical pulses each cardiac cycle, and we changed the timing of the stimulus by a smal...

journal_title：Circulation research

authors： Yang TE,Cheng J,Levy MN

更新日期：1990-10-01 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：:We have recently demonstrated that endogenous erythropoietin (Epo)/Epo receptor (EpoR) system plays an important protective role in hypoxia-induced pulmonary hypertension. However, it remains to be examined whether vascular EpoR system contributes to angiogenesis in response to ischemia. We examined angiogenesis in Ep...

journal_title：Circulation research

authors： Nakano M,Satoh K,Fukumoto Y,Ito Y,Kagaya Y,Ishii N,Sugamura K,Shimokawa H

更新日期：2007-03-16 00:00:00

abstract：:In newborn lambs, pulmonary prostacyclin (PGI2) production increases acutely in response to low oxygen. We tested the hypothesis that decreased oxygenation directly stimulates PGI2 synthesis in arterial segments and cultured endothelial cells from newborn lamb intrapulmonary arteries. In segments studied at PO2 of 680...

journal_title：Circulation research

authors： North AJ,Brannon TS,Wells LB,Campbell WB,Shaul PW

更新日期：1994-07-01 00:00:00

abstract：:The fat-derived hormone adiponectin has been shown to have a protective role in macrovascular disorders. However, nothing is known about the function of adiponectin in retinal microvessel disease. Here, we investigated the causal role of adiponectin in retinal vessel formation and inflammation under conditions of hypo...

journal_title：Circulation research

authors： Higuchi A,Ohashi K,Kihara S,Walsh K,Ouchi N

更新日期：2009-05-08 00:00:00

abstract：:To delineate more clearly the importance of altered monovalent cation transport rate in the mediation of the positive inotropic effects of cardiac glycosides, we studied changes in the contractile state and rate of uptake of K+ and Rb+ by monolayer cultures of chick embryo ventricular cells during exposure to and wash...

journal_title：Circulation research

authors： Barry WH,Biedert S,Miura DS,Smith TW

更新日期：1981-07-01 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：:Whole-cell voltage-clamp experiments were performed on enzymatically dissociated single ventricular myocytes harvested from feline endocardial and epicardial surfaces. The studies were designed to test the hypothesis that the differences in the amplitude of transient outward current (Ito) contribute to the difference ...

journal_title：Circulation research

authors： Furukawa T,Myerburg RJ,Furukawa N,Bassett AL,Kimura S

更新日期：1990-11-01 00:00:00

abstract：:Adipose tissue (AT) plays a central role in both metabolic health and pathophysiology. Its expansion in obesity results in increased mortality and morbidity, with contributions to cardiovascular disease, diabetes mellitus, fatty liver disease, and cancer. Obesity prevalence is at an all-time high and is projected to b...

journal_title：Circulation research

authors： Weinstock A,Moura Silva H,Moore KJ,Schmidt AM,Fisher EA

更新日期：2020-05-22 00:00:00

abstract：RATIONALE:MicroRNAs (miRNAs) are short noncoding RNA species generated by the processing of longer precursors by the ribonucleases Drosha and Dicer. Platelets contain large amounts of miRNA that are altered by disease, in particular diabetes mellitus. OBJECTIVE:This study determined why platelet miRNA levels are atten...

journal_title：Circulation research

authors： Elgheznawy A,Shi L,Hu J,Wittig I,Laban H,Pircher J,Mann A,Provost P,Randriamboavonjy V,Fleming I

更新日期：2015-07-03 00:00:00

abstract：:Changes in angiotensin-converting enzyme were measured in the lungs of fetal rabbits isolated and perfused in situ at varying ages from 22 days gestation to 7 days of age under controlled conditions of flow, pH, and temperature. Enzyme activity was assessed by infusing bradykinin or angiotensin I in Krebs-Henseleit so...

journal_title：Circulation research

authors： Stalcup SA,Pang LM,Lipset JS,Odya CE,Goodfriend TL,Mellins RB

更新日期：1978-11-01 00:00:00

abstract：RATIONALE:Although tyrosine kinases (TKs) are important for cardiac function, their relevant downstream targets in the adult heart are unknown. The ShcA docking protein binds specific phosphotyrosine (pTyr) sites on activated TKs through its N-terminal pTyr-binding (PTB) and C-terminal SH2 domains and stimulates downst...

journal_title：Circulation research

authors： Vanderlaan RD,Hardy WR,Kabir MG,Pasculescu A,Jones N,deTombe PP,Backx PH,Pawson T

更新日期：2011-01-21 00:00:00

abstract：:Cardiomyocyte regeneration is limited in adult life. Thus, the identification of a putative source of cardiomyocyte progenitors is of great interest to provide a usable model in vitro and new perspective in regenerative therapy. As adipose tissues were recently demonstrated to contain pluripotent stem cells, the emerg...

journal_title：Circulation research

authors： Planat-Bénard V,Menard C,André M,Puceat M,Perez A,Garcia-Verdugo JM,Pénicaud L,Casteilla L

更新日期：2004-02-06 00:00:00

abstract：:Inflammatory processes underlie a broad spectrum of conditions that injure the heart muscle and cause both structural and functional deficits. In this article, we address current knowledge regarding 4 common forms of myocardial inflammation: myocardial ischemia and reperfusion, sepsis, viral myocarditis, and immune re...

journal_title：Circulation research

authors： Marchant DJ,Boyd JH,Lin DC,Granville DJ,Garmaroudi FS,McManus BM

更新日期：2012-01-06 00:00:00

abstract：:Cellular Ca2+ regulation is abnormal in diseased hearts. We designed this study to assess the role of the Na(+)-Ca2+ exchanger in excitation-contraction coupling in surviving myocardium of the infarcted heart. We measured cellular contractions and whole-cell currents in single left ventricular myocytes isolated from t...

journal_title：Circulation research

authors： Litwin SE,Bridge JH

更新日期：1997-12-01 00:00:00

abstract：:The hypothesis that availability of functional Ca2+ channels in vascular smooth muscle is augmented in hypertension was tested in basilar artery cells from Wistar rats exhibiting stable systolic blood pressure (BPsys) for 2 to 11 weeks after partial renal artery ligation (Goldblatt 2-kidney 1-clip [2K1C] model). Cells...

journal_title：Circulation research

authors： Simard JM,Li X,Tewari K

更新日期：1998-06-29 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:Congenital heart disease (CHD) is among the most common birth defects. Most cases are of unknown pathogenesis. OBJECTIVE:To determine the contribution of de novo copy number variants (CNVs) in the pathogenesis of sporadic CHD. METHODS AND RESULTS:We studied 538 CHD trios using genome-wide dense single nucle...

journal_title：Circulation research

authors： Glessner JT,Bick AG,Ito K,Homsy J,Rodriguez-Murillo L,Fromer M,Mazaika E,Vardarajan B,Italia M,Leipzig J,DePalma SR,Golhar R,Sanders SJ,Yamrom B,Ronemus M,Iossifov I,Willsey AJ,State MW,Kaltman JR,White PS,Shen Y

更新日期：2014-10-24 00:00:00

abstract：:Oxidized phospholipids, including oxidation products of palmitoyl-arachidonyl-phosphatidyl choline (PAPC), are mediators of inflammation in endothelial cells (ECs) and known to induce several chemokines, including interleukin-8 (IL-8). In this study, we show that oxidized PAPC (OxPAPC), which accumulates in atheroscle...

journal_title：Circulation research

authors： Yeh M,Cole AL,Choi J,Liu Y,Tulchinsky D,Qiao JH,Fishbein MC,Dooley AN,Hovnanian T,Mouilleseaux K,Vora DK,Yang WP,Gargalovic P,Kirchgessner T,Shyy JY,Berliner JA

更新日期：2004-10-15 00:00:00

abstract：RATIONALE:Human clinical trials using type 1 angiotensin (AT(1)) receptor antagonists indicate that angiotensin II is a critical mediator of cardiovascular and renal disease. However, recent studies have suggested that individual tissue pools of AT(1) receptors may have divergent effects on target organ damage in hyper...

journal_title：Circulation research

authors： Zhang JD,Patel MB,Song YS,Griffiths R,Burchette J,Ruiz P,Sparks MA,Yan M,Howell DN,Gomez JA,Spurney RF,Coffman TM,Crowley SD

更新日期：2012-06-08 00:00:00

abstract：:The major goal of this study was to determine the interactions of VLDL surface and core lipids with the artery wall. We first demonstrated in vitro that surface lipid in VLDL could be traced using the phospholipid-like fluorescent probe 1,1'-dioctadecyl-3,3, 3',3'-tetramethyl-indocarbocyanine (DiI). The core of VLDL p...

journal_title：Circulation research

authors： Rutledge JC,Mullick AE,Gardner G,Goldberg IJ

更新日期：2000-04-14 00:00:00

abstract：RATIONALE:Transcatheter, intramyocardial injections of bone marrow-derived cell therapy produces reverse remodeling in large animal models of ischemic cardiomyopathy. OBJECTIVE:We used cardiac MRI (CMR) in patients with left ventricular (LV) dysfunction related to remote myocardial infarction (MI) to test the hypothes...

journal_title：Circulation research

authors： Williams AR,Trachtenberg B,Velazquez DL,McNiece I,Altman P,Rouy D,Mendizabal AM,Pattany PM,Lopera GA,Fishman J,Zambrano JP,Heldman AW,Hare JM

更新日期：2011-04-01 00:00:00

abstract：:Recent advances in our understanding of the contribution of thrombin generation to arterial thrombosis and the role of platelets in venous thrombosis have prompted new treatment paradigms. Nonetheless, bleeding remains the major side effect of such treatments spurring the quest for new antithrombotic regimens with bet...

journal_title：Circulation research

authors： Chan NC,Weitz JI

更新日期：2019-02-01 00:00:00