Endogenous nitric oxide synthase inhibitor: a novel marker of atherosclerosis.

abstract：BACKGROUND:Endothelium-derived nitric oxide is an important modulator of resting vascular tone in animals and humans. However, the contribution of nitric oxide to exercise-induced vasodilation is unknown. METHODS AND RESULTS:The effect of NG-monomethyl-L-arginine (L-NMMA), an inhibitor of nitric oxide synthesis, on ex...

journal_title：Circulation

authors： Gilligan DM,Panza JA,Kilcoyne CM,Waclawiw MA,Casino PR,Quyyumi AA

更新日期：1994-12-01 00:00:00

abstract：:Statistical multivariate and conventional deterministic methods of computerized interpretation of the electrocardiogram (ECG) were compared in the analysis of 1711 pediatric orthogonal ECGs validated by nonelectrocardiographic criteria on the basis of clinical and anatomic diagnoses. Among 642 children catheterized fo...

journal_title：Circulation

authors： Brohet CR,Robert A,Derwael C,Fesler R,Stijns M,Vliers A,Braasseur LA

更新日期：1984-08-01 00:00:00

abstract：BACKGROUND:The role of endothelial nitric oxide synthase (eNOS) in ischemic preconditioning (PC) and cardioprotection is poorly understood. We addressed this issue using a genetic, rather than pharmacological, approach. METHODS AND RESULTS:In the nonpreconditioned state, eNOS-/- mice exhibited infarct sizes similar to...

journal_title：Circulation

authors： Xuan YT,Guo Y,Zhu Y,Wang OL,Rokosh G,Bolli R

更新日期：2007-07-31 00:00:00

abstract：BACKGROUND:Clinical trials have demonstrated that platelet glycoprotein (GP) IIb/IIIa antagonists effectively prevent acute thrombotic events. Orally active GP IIb/IIIa antagonists are essential to evaluate the clinical benefit of long-term treatment. We therefore investigated platelet inhibition by the GP IIb/IIIa ant...

journal_title：Circulation

authors： Müller TH,Weisenberger H,Brickl R,Narjes H,Himmelsbach F,Krause J

更新日期：1997-08-19 00:00:00

abstract：BACKGROUND:It is recommended that comatose survivors of out-of-hospital cardiac arrest should be cooled to 32° to 34°C for 12 to 24 hours. However, the optimal level of cooling is unknown. The aim of this pilot study was to obtain initial data on the effect of different levels of hypothermia. We hypothesized that deepe...

journal_title：Circulation

authors： Lopez-de-Sa E,Rey JR,Armada E,Salinas P,Viana-Tejedor A,Espinosa-Garcia S,Martinez-Moreno M,Corral E,Lopez-Sendon J

更新日期：2012-12-11 00:00:00

abstract：:We studied 14 patients to determine whether sustained-release diltiazem is a satisfactory long-term substitute for the combination of propranolol plus hydrochlorothiazide (HCTZ), control phase, in the treatment of systemic hypertension with coexisting chronic stable angina pectoris. All patients had either one- or two...

journal_title：Circulation

authors： Kawanishi DT,Reid CL,Gonzales A,O'Rourke RA,Rahimtoola SH

更新日期：1989-12-01 00:00:00

abstract：BACKGROUND:Cardiovascular disease (CVD) fatality rates are higher for women than for men, yet obstructive coronary artery disease (CAD) is less prevalent in women. Coronary flow reserve (CFR), an integrated measure of large- and small-vessel CAD and myocardial ischemia, identifies patients at risk for CVD death, but is...

journal_title：Circulation

authors： Taqueti VR,Shaw LJ,Cook NR,Murthy VL,Shah NR,Foster CR,Hainer J,Blankstein R,Dorbala S,Di Carli MF

更新日期：2017-02-07 00:00:00

abstract：BACKGROUND:Myocardial injury from ischemia can be aggravated by reperfusion of the jeopardized area. The precise underlying mechanisms have not been clearly defined, but proinflammatory events, including complement activation, leukocyte adhesion, and infiltration and release of diverse mediators, probably play importan...

journal_title：Circulation

authors： Horstick G,Heimann A,Götze O,Hafner G,Berg O,Böhmer P,Becker P,Darius H,Rupprecht HJ,Loos M,Bhakdi S,Meyer J,Kempski O

更新日期：1997-02-04 00:00:00

abstract：BACKGROUND:The purpose of this study was to assess the long-term value of dobutamine-atropine stress echocardiography (DSE) for prediction of late cardiac events in patients with proven or suspected coronary artery disease. METHODS AND RESULTS:Clinical data and DSE results were analyzed in 1734 consecutive patients un...

journal_title：Circulation

authors： Poldermans D,Fioretti PM,Boersma E,Bax JJ,Thomson IR,Roelandt JR,Simoons ML

更新日期：1999-02-16 00:00:00

abstract：BACKGROUND:Ultrafast computed tomography (CT), by acquiring images of the proximal coronary arteries, detects coronary calcifications and has been demonstrated to be highly sensitive for the detection of coronary artery disease in many small studies. The aim of this study was to determine the relationship between ultra...

journal_title：Circulation

authors： Budoff MJ,Georgiou D,Brody A,Agatston AS,Kennedy J,Wolfkiel C,Stanford W,Shields P,Lewis RJ,Janowitz WR,Rich S,Brundage BH

更新日期：1996-03-01 00:00:00

abstract：BACKGROUND:The coronary artery collateral circulation may be beneficial in protecting against myocardial ischemia and necrosis. However, there is a tremendous interindividual variability in the degree of new collateral formation in patients with coronary artery disease. The basis for this interindividual heterogeneity ...

journal_title：Circulation

authors： Schultz A,Lavie L,Hochberg I,Beyar R,Stone T,Skorecki K,Lavie P,Roguin A,Levy AP

更新日期：1999-08-03 00:00:00

abstract：:This article provides a selective overview of epidemiologic studies on the relationship between psychosocial factors and blood pressure elevation. The review focuses on English-language reports published since 1975 and emphasizes two broad areas of research: changes in mean blood pressures of third world populations u...

journal_title：Circulation

authors： James SA

更新日期：1987-07-01 00:00:00

abstract：BACKGROUND:Endothelin (ET), a coronary vasoconstrictor, mediates its activity through the specific receptors ET-A and ET-B, which may demonstrate different activity under pathophysiological conditions. Thoracic inferior vena cava constriction (TIVCC) is an experimental model of congestive heart failure that is characte...

journal_title：Circulation

authors： Cannan CR,Burnett JC Jr,Lerman A

更新日期：1996-02-15 00:00:00

abstract：:Characteristics of blood-flow velocities were investigated at different sites in two types of coronary artery bypass grafts, sequential saphenous vein grafts (SSVG) and internal mammary artery grafts (IMAG). The latter appear to have the longest life span. The patency rate of the side-to-side anastomosis of the SSVG i...

journal_title：Circulation

authors： Fujiwara T,Kajiya F,Kanazawa S,Matsuoka S,Wada Y,Hiramatsu O,Kagiyama M,Ogasawara Y,Tsujioka K,Katsumura T

更新日期：1988-11-01 00:00:00

abstract：BACKGROUND:Although autonomic imbalance is known to be characteristics of patients with clinically overt symptomatic congestive heart failure, it is currently unknown whether this autonomic response arises early in the course of left ventricular dysfunction or is restricted to the later stages of circulatory failure. ...

journal_title：Circulation

authors： Eaton GM,Cody RJ,Nunziata E,Binkley PF

更新日期：1995-08-01 00:00:00

abstract：BACKGROUND:Doppler echocardiography is frequently used to predict filling pressures in normal sinus rhythm, but it is unknown whether it can be applied in sinus tachycardia, with merging of E and A velocities. Tissue Doppler imaging (TDI) can record the mitral annular velocity. The early diastolic velocity (Ea) behaves...

journal_title：Circulation

authors： Nagueh SF,Mikati I,Kopelen HA,Middleton KJ,Quiñones MA,Zoghbi WA

更新日期：1998-10-20 00:00:00

abstract：:This study examined quantitative regional myocardial perfusion (RMP) measured by the washout of 133Xe at rest and after an isoproterenol challenge in 50 patients (group I) studied 8 to 14 days after they underwent saphenous vein bypass grafting to the left coronary artery, and compared this with RMP measured in the na...

journal_title：Circulation

authors： Schmidt DH,Blau FM,Hendrix LJ,Kamath ML,Ray G

更新日期：1985-04-01 00:00:00

abstract：BACKGROUND:Signaling through protein tyrosine kinases (PTKs) is a major contributor to the transmission of mitogenic stimuli to the interior of the cell and nucleus. The present study was designed to determine the effect of the tyrphostin AG1295, a selective blocker of PDGF-receptor PTK, on the growth of porcine and hu...

journal_title：Circulation

authors： Banai S,Wolf Y,Golomb G,Pearle A,Waltenberger J,Fishbein I,Schneider A,Gazit A,Perez L,Huber R,Lazarovichi G,Rabinovich L,Levitzki A,Gertz SD

更新日期：1998-05-19 00:00:00

abstract：BACKGROUND:Up to 30% of patients with end-stage heart failure experience biventricular failure that requires biventricular mechanical support. For these patients, only bulky extracorporeal or implantable displacement pumps or the total artificial heart have been available to date, which enables only limited quality of ...

journal_title：Circulation

authors： Krabatsch T,Potapov E,Stepanenko A,Schweiger M,Kukucka M,Huebler M,Hennig E,Hetzer R

更新日期：2011-09-13 00:00:00

abstract：BACKGROUND:The production of left ventricular (LV) restoring forces generated during contraction, which are responsible for diastolic suction, is dependent on end-systolic volume (ESV) and systolic transmural and 3D deformation. We tested the hypothesis that acute coronary occlusion would result in loss of forces that ...

journal_title：Circulation

authors： Bell SP,Fabian J,Watkins MW,LeWinter MM

更新日期：1997-10-07 00:00:00

abstract：BACKGROUND:After regular coronary balloon angioplasty, it would be helpful to identify those patients who have a low cardiac event rate. Coronary angiography alone is not sensitive enough for that purpose, but it has been suggested that the combination of optimal angiographic and optimal functional results indicates a ...

journal_title：Circulation

authors： Bech GJ,Pijls NH,De Bruyne B,Peels KH,Michels HR,Bonnier HJ,Koolen JJ

更新日期：1999-02-23 00:00:00

abstract：BACKGROUND:The possible contribution of endothelin-1, a potent endothelium-derived vasoconstrictor peptide, to neurohumoral compensation for hemodynamic stress was examined in nine normal volunteers and six patients with severe congestive heart failure. METHODS AND RESULTS:Plasma levels of endothelin-1 were measured w...

journal_title：Circulation

authors： Stewart DJ,Cernacek P,Costello KB,Rouleau JL

更新日期：1992-02-01 00:00:00

abstract：BACKGROUND:It was the aim of this study to assess the long-term effects of physical exercise and low-fat diet on the progression of coronary artery disease. At the beginning of the study, 113 male patients with coronary artery disease were randomized to an intervention group (n=56) or a control group (n=57); 90 patient...

journal_title：Circulation

authors： Niebauer J,Hambrecht R,Velich T,Hauer K,Marburger C,Kälberer B,Weiss C,von Hodenberg E,Schlierf G,Schuler G,Zimmermann R,Kübler W

更新日期：1997-10-21 00:00:00

abstract：BACKGROUND:Atherosclerosis is associated with immune responses to oxidized lipoproteins and certain microorganisms, but the role of specific immunity has remained unclear. METHODS AND RESULTS:To study the role of immunity in atherosclerosis, we crossed atherosclerosis-prone apoE(-/-) mice with immunodeficient scid/sci...

journal_title：Circulation

authors： Zhou X,Nicoletti A,Elhage R,Hansson GK

更新日期：2000-12-12 00:00:00

abstract：BACKGROUND:Previous studies suggest that rigid fixation of the mitral annulus with an annuloplasty ring may impair left ventricular (LV) systolic performance. We used load-insensitive indexes of global and regional LV contractile mechanics to test the hypothesis that rigid fixation of the mitral annulus alters LV systo...

journal_title：Circulation

authors： Rayhill SC,Castro LJ,Nizyporuk MA,Ingels NB Jr,Daughters GT,Derby GC,Tye TL,Bolger AF,Miller DC

更新日期：1992-11-01 00:00:00

abstract：BACKGROUND:Recent data suggest that the Berlin Heart EXCOR Pediatric ventricular assist device is superior to extracorporeal membrane oxygenation for bridge to heart transplantation. Published data are limited to 1 in 4 children who received the device as part of the US clinical trial. We analyzed outcomes for all US c...

journal_title：Circulation

authors： Almond CS,Morales DL,Blackstone EH,Turrentine MW,Imamura M,Massicotte MP,Jordan LC,Devaney EJ,Ravishankar C,Kanter KR,Holman W,Kroslowitz R,Tjossem C,Thuita L,Cohen GA,Buchholz H,St Louis JD,Nguyen K,Niebler RA,Walt

更新日期：2013-04-23 00:00:00

abstract：BACKGROUND:The role of intracellular calcium (Ca(i)) in defibrillation and vulnerability is unclear. METHODS AND RESULTS:We simultaneously mapped epicardial membrane potential and Ca(i) during shock on T-wave episodes (n=104) and attempted defibrillation episodes (n=173) in 17 Langendorff-perfused rabbit ventricles. U...

journal_title：Circulation

authors： Hwang GS,Hayashi H,Tang L,Ogawa M,Hernandez H,Tan AY,Li H,Karagueuzian HS,Weiss JN,Lin SF,Chen PS

更新日期：2006-12-12 00:00:00

abstract：BACKGROUND:Aldosterone and angiotensin (Ang) II both may cause organ damage. Circulating aldosterone is produced in the adrenals; however, local cardiac synthesis has been reported. Aldosterone concentrations depend on the activity of aldosterone synthase (CYP11B2). We tested the hypothesis that reducing aldosterone by...

journal_title：Circulation

authors： Fiebeler A,Nussberger J,Shagdarsuren E,Rong S,Hilfenhaus G,Al-Saadi N,Dechend R,Wellner M,Meiners S,Maser-Gluth C,Jeng AY,Webb RL,Luft FC,Muller DN

更新日期：2005-06-14 00:00:00

abstract：BACKGROUND:Myocardial afterload depends on left ventricular (LV) cavity size, pressure, and wall thickness, all of which change markedly throughout ejection. We assessed the relationship between instantaneous ejection-phase pressure and myocardial stress and the effect of arterial wave reflections on myocardial stress ...

journal_title：Circulation

authors： Chirinos JA,Segers P,Gupta AK,Swillens A,Rietzschel ER,De Buyzere ML,Kirkpatrick JN,Gillebert TC,Wang Y,Keane MG,Townsend R,Ferrari VA,Wiegers SE,St John Sutton M

更新日期：2009-06-02 00:00:00

abstract：BACKGROUND:Coronary heart disease (CHD) is the leading cause of morbidity and mortality in persons with type 2 diabetes mellitus (T2DM). Electron-beam computed tomography (EBCT) detects coronary artery calcium (CAC), a marker of atherosclerotic plaque. Few studies have described EBCT-defined CHD among ethnic minorities...

journal_title：Circulation

authors： Araneta MR,Barrett-Connor E

更新日期：2004-11-02 00:00:00