External beam radiation to prevent restenosis after superficial femoral artery balloon angioplasty.

abstract：BACKGROUND:Apolipoprotein E (apoE) has long been known to play an important role in the clearance of plasma lipoproteins. More recently, a direct role for apoE in delaying atherogenesis has been proposed. Macrophage production of apoE in the artery wall has been demonstrated to provide protection against atheroscleroti...

journal_title：Circulation

authors： Hasty AH,Linton MF,Brandt SJ,Babaev VR,Gleaves LA,Fazio S

更新日期：1999-05-18 00:00:00

abstract：BACKGROUND:Adrenomedullin is a recently discovered endogenous peptide with hypotensive and natriuretic actions in normal animals. Circulating and ventricular adrenomedullin are elevated in congestive heart failure, suggesting a possible role in the pathophysiology of this disease. No studies have previously examined th...

journal_title：Circulation

authors： Rademaker MT,Charles CJ,Lewis LK,Yandle TG,Cooper GJ,Coy DH,Richards AM,Nicholls MG

更新日期：1997-09-16 00:00:00

abstract：BACKGROUND:Proliferation of smooth muscle cells (SMCs) plays an important role in vascular pathobiology, being involved in the development of coronary restenosis and atherosclerosis. The activation of nuclear proto-oncogenes appears to be a final common pathway onto which various mitogenic signals coverage. Accordingly...

journal_title：Circulation

authors： Shi Y,Hutchinson HG,Hall DJ,Zalewski A

更新日期：1993-09-01 00:00:00

abstract：BACKGROUND:Disturbed fibrinolytic function may influence the progression of coronary atherosclerosis and contribute to thrombotic cardiovascular (CV) events. METHODS AND RESULTS:In the Angina Prognosis Study in Stockholm (APSIS), patients with stable angina pectoris were studied prospectively during double-blind treat...

journal_title：Circulation

authors： Held C,Hjemdahl P,Rehnqvist N,Wallén NH,Björkander I,Eriksson SV,Forslund L,Wiman B

更新日期：1997-05-20 00:00:00

abstract：BACKGROUND:The contractile dysfunction observed in end-stage myocardial hypertrophy has at its base an abnormality in myocyte function. However, whether depressed contractile function is related to an alteration in contractile protein function is presently unknown. METHODS AND RESULTS:Contractile force, tension, and c...

journal_title：Circulation

authors： Fan D,Wannenburg T,de Tombe PP

更新日期：1997-05-06 00:00:00

abstract：:A Y-shaped lesion in the right atrium allows induction of atrial flutter in dogs. We recorded the activation sequence during this tachycardia from 96 endocardial bipolar electrodes using intracavitary electrode arrays during 12 separate episodes in three isolated perfused hearts. In each case a reentrant impulse circu...

journal_title：Circulation

authors： Frame LH,Page RL,Boyden PA,Fenoglio JJ Jr,Hoffman BF

更新日期：1987-11-01 00:00:00

abstract：BACKGROUND:It is unknown whether adenosine can precondition human myocardium against ischemia in vivo. METHODS AND RESULTS:Thirty patients were randomized to receive a 10-minute intracoronary infusion of adenosine (2 mg/min) or normal saline; 10 minutes later, they underwent percutaneous transluminal coronary angiopla...

journal_title：Circulation

authors： Leesar MA,Stoddard M,Ahmed M,Broadbent J,Bolli R

更新日期：1997-06-03 00:00:00

abstract：BACKGROUND:Regulatory T cells (Treg) are present in atherosclerotic lesions and can modulate disease. In this study we characterized changes in Treg responses associated with prolonged hypercholesterolemia and lesion progression. METHODS AND RESULTS:Low-density lipoprotein receptor null mice in which Treg express gree...

journal_title：Circulation

authors： Maganto-García E,Tarrio ML,Grabie N,Bu DX,Lichtman AH

更新日期：2011-07-12 00:00:00

abstract：BACKGROUND:Interleukin (IL)-6-related cytokines share gp130 as the signal-transducing protein. Downstream of gp130, two signal-transducing pathways have been recognized, the Janus kinase-signal transducer and activator of transcription (JAK-STAT) pathway and the Ras-mitogen-activated protein kinase (MAPK) pathway. To d...

journal_title：Circulation

authors： Kunisada K,Hirota H,Fujio Y,Matsui H,Tani Y,Yamauchi-Takihara K,Kishimoto T

更新日期：1996-11-15 00:00:00

abstract：BACKGROUND:In heart failure (HF), aldosterone has been implicated in the formation of reactive interstitial fibrosis, a maladaptation that contributes to left ventricular (LV) remodeling. Eplerenone is a novel selective aldosterone blocker. The present study examined the effects of long-term monotherapy with eplerenone...

journal_title：Circulation

authors： Suzuki G,Morita H,Mishima T,Sharov VG,Todor A,Tanhehco EJ,Rudolph AE,McMahon EG,Goldstein S,Sabbah HN

更新日期：2002-12-03 00:00:00

abstract：BACKGROUND:Associations between left ventricular (LV) geometry and the insulin resistance syndrome have been found, mostly in small studies of middle-aged hypertensives. The purpose of this study was to elucidate these associations through the use of a large sample of elderly men. METHODS AND RESULTS:We investigated 4...

journal_title：Circulation

authors： Sundström J,Lind L,Nyström N,Zethelius B,Andrén B,Hales CN,Lithell HO

更新日期：2000-06-06 00:00:00

abstract：BACKGROUND:We tested the hypothesis that combined cyclooxygenase-1 (COX-1) and prostacyclin synthase (PGIS) gene transfer selectively augments prostacyclin production without a concurrent overproduction of other prostanoids. METHODS AND RESULTS:ECV304 cells were transfected with bicistronic pCOX-1/PGIS versus pCOX-1 o...

journal_title：Circulation

authors： Shyue SK,Tsai MJ,Liou JY,Willerson JT,Wu KK

更新日期：2001-04-24 00:00:00

abstract：BACKGROUND:Proposed advantages to the Ross procedure included presumed increased freedom from reoperation and simpler reoperation for pulmonary conduit replacement if needed. It is increasingly apparent, however, that reoperations are frequent after the Ross procedure and that when required, they may be more complex th...

journal_title：Circulation

authors： Stulak JM,Burkhart HM,Sundt TM 3rd,Connolly HM,Suri RM,Schaff HV,Dearani JA

更新日期：2010-09-21 00:00:00

abstract：BACKGROUND:This study examines the limitations and complex management problems associated with the use of tiered-therapy, implantable cardioverter-defibrillators (ICDs). METHODS AND RESULTS:The study group comprises the first 154 patients undergoing implantation of tiered-therapy ICDs at our institution. Pulse generat...

journal_title：Circulation

authors： Nunain SO,Roelke M,Trouton T,Osswald S,Kim YH,Sosa-Suarez G,Brooks DR,McGovern B,Guy M,Torchiana DF

更新日期：1995-04-15 00:00:00

abstract：BACKGROUND:Impaired fibrinolytic capacity, as assessed by euglobulin clot lysis time or plasma concentration of fibrinolytic parameters, has been associated with an increased risk of myocardial infarction (MI). We studied the association of a polymorphism in the gene for TPA and of plasma concentrations of TPA (antigen...

journal_title：Circulation

authors： van der Bom JG,de Knijff P,Haverkate F,Bots ML,Meijer P,de Jong PT,Hofman A,Kluft C,Grobbee DE

更新日期：1997-06-17 00:00:00

abstract：BACKGROUND:Few data are available on the prevalence of hypertension in Mexico. METHODS AND RESULTS:We compared the prevalence of mild hypertension (systolic blood pressure > or = 140 mm Hg and/or diastolic blood pressure > or = 90 mm Hg and/or use of antihypertensive medications) in 1500 low-income Mexican Americans w...

journal_title：Circulation

authors： Haffner S,González Villalpando C,Hazuda HP,Valdez R,Mykkänen L,Stern M

更新日期：1994-09-01 00:00:00

abstract：BACKGROUND:Electrophysiological mechanisms by which adenosine may activate cardiac afferent neurons are unknown. Slow afterhyperpolarizations (AHPs) follow action potentials in a subset of vagal C afferents, rendering them inexcitable. The purpose of this study was to test the hypothesis that adenosine increases vagal ...

journal_title：Circulation

authors： Middlekauff HR,Doering A,Weiss JN

更新日期：2001-03-06 00:00:00

abstract：BACKGROUND:Vascular endothelial cell growth factor plays a pivotal role in angiogenesis via regulating endothelial cell proliferation. The X-box binding protein 1 (XBP1) is believed to be a signal transducer in the endoplasmic reticulum stress response. It is unknown whether there is crosstalk between vascular endothel...

journal_title：Circulation

authors： Zeng L,Xiao Q,Chen M,Margariti A,Martin D,Ivetic A,Xu H,Mason J,Wang W,Cockerill G,Mori K,Li JY,Chien S,Hu Y,Xu Q

更新日期：2013-04-23 00:00:00

abstract：BACKGROUND:Radiofrequency catheter ablation of concealed posteroseptal accessory pathways (APS) has been a relatively difficult task for electrophysiologists. Without a detailed mapping procedure, the left versus the right posteroseptal AP could not be distinguished. We investigated the electrophysiological characteris...

journal_title：Circulation

authors： Chiang CE,Chen SA,Tai CT,Wu TJ,Lee SH,Cheng CC,Chiou CW,Ueng KC,Wen ZC,Chang MS

更新日期：1996-03-01 00:00:00

abstract：BACKGROUND:Albuminuria is an established risk marker for both cardiovascular and renal outcomes. Albuminuria can be reduced with drugs that block the renin-angiotensin system (RAS). We questioned whether the short-term drug-induced change in albuminuria would predict the long-term cardioprotective efficacy of RAS inter...

journal_title：Circulation

authors： de Zeeuw D,Remuzzi G,Parving HH,Keane WF,Zhang Z,Shahinfar S,Snapinn S,Cooper ME,Mitch WE,Brenner BM

更新日期：2004-08-24 00:00:00

abstract：BACKGROUND:A growing body of evidence from animal studies supports the hypothesis that oxidative stress-mediated mechanisms play a central role in early atherogenesis. In contrast, clinical trials with antioxidant vitamins have not produced consistent results in humans with established atherosclerosis. METHODS AND RES...

journal_title：Circulation

authors： Cyrus T,Yao Y,Rokach J,Tang LX,Praticò D

更新日期：2003-02-04 00:00:00

abstract：BACKGROUND:The purpose of this study was to define the degree of intrinsic tone in conductance and resistance vessels, to define the calcium dependency of intrinsic tone in these vascular preparations, and to investigate the efficacy of vasodilatory agents on the level of intrinsic tone in these vascular preparations. ...

journal_title：Circulation

authors： Jain M,Dai HB,Carrozza JP,Sellke FW,Morgan KG

更新日期：1996-09-01 00:00:00

abstract：BACKGROUND:The hypoxia-inducible transcription factor (HIF) subunits are destabilized via the O(2)-dependent prolyl hydroxylase domain proteins (PHD1, PHD2, and PHD3). We investigated whether inhibition of PHDs via upregulating HIF might promote postischemic neovascularization. METHODS AND RESULTS:Mice with right femo...

journal_title：Circulation

authors： Loinard C,Ginouvès A,Vilar J,Cochain C,Zouggari Y,Recalde A,Duriez M,Lévy BI,Pouysségur J,Berra E,Silvestre JS

更新日期：2009-07-07 00:00:00

abstract：:We have studied the effects of cardioplegic solution (CS) on angiographic and histologic anatomy of bilateral vein grafts interposed into the carotid arteries of 10 dogs for up to 1 year. One vein (exp) was infused with cardioplegic solution (pH 7.7, K + 25 mEq/l, temperature 12 degrees C) every 15 min four times at p...

journal_title：Circulation

authors： Singh AK,Capone RJ,O'Shea P,Karlson KE

更新日期：1983-09-01 00:00:00

abstract：BACKGROUND:Older coronary patients are at high risk of cardiac disability. Exercise conditioning programs have been demonstrated to improve functional capacity, particularly in younger coronary patients. In this study, the effects of aerobic conditioning on submaximal and maximal indicators of exercise performance were...

journal_title：Circulation

authors： Ades PA,Waldmann ML,Poehlman ET,Gray P,Horton ED,Horton ES,LeWinter MM

更新日期：1993-08-01 00:00:00

abstract：:In the United States each year, >5.3 million patients present to emergency departments with chest discomfort and related symptoms. Ultimately, >1.4 million individuals are hospitalized for unstable angina and non-ST-segment elevation myocardial infarction. For emergency physicians and cardiologists alike, these patien...

journal_title：Circulation

authors： Gibler WB,Cannon CP,Blomkalns AL,Char DM,Drew BJ,Hollander JE,Jaffe AS,Jesse RL,Newby LK,Ohman EM,Peterson ED,Pollack CV,American Heart Association Council on Clinical Cardiology (Subcommittee on Acute Cardiac Care).,Council on

更新日期：2005-05-24 00:00:00

abstract：:Nineteen patients with chronic low output cardiac failure were studied before, during and after infusion of phentolamine in doses of 10, 20, 30 and 40 microgram/kg/min. Significant reduction of left- and right-sided pressures and increases in cardiac index and heart rate (HR) were present within 15 minutes of starting...

journal_title：Circulation

authors： Stern MA,Gohlke HK,Loeb HS,Croke RP,Gunnar RM

更新日期：1978-07-01 00:00:00

abstract：BACKGROUND:Spontaneous transient outward potassium currents (STOCs) induce myogenic relaxation in small cerebral vessels. We found STOCs in human coronary artery vascular smooth muscle cells (VSMCs) and studied their regulation. METHODS AND RESULTS:K+ currents were recorded in human coronary VSMCs by current- and volt...

journal_title：Circulation

authors： Bychkov R,Gollasch M,Ried C,Luft FC,Haller H

更新日期：1997-01-21 00:00:00

abstract：BACKGROUND:Biological pacemakers (BPM) implanted in canine left bundle branch function competitively with electronic pacemakers (EPM). We hypothesized that BPM engineered with the use of mE324A mutant murine HCN2 (mHCN2) genes would improve function over mHCN2 and that BPM/EPM tandems confer advantage over either appro...

journal_title：Circulation

authors： Bucchi A,Plotnikov AN,Shlapakova I,Danilo P Jr,Kryukova Y,Qu J,Lu Z,Liu H,Pan Z,Potapova I,KenKnight B,Girouard S,Cohen IS,Brink PR,Robinson RB,Rosen MR

更新日期：2006-09-05 00:00:00

abstract：:Left main coronary artery disease (i.e., greater than or equal to 50% stenosis) was found in 1,477 of 20,137 patients in the Coronary Artery Surgery Study (CAS) registry. Of these patients, 53 (3.6%) were asymptomatic. Asymptomatic and symptomatic patients were similar in regard to 1) severity of left main coronary ar...

journal_title：Circulation

authors： Taylor HA,Deumite NJ,Chaitman BR,Davis KB,Killip T,Rogers WJ

更新日期：1989-06-01 00:00:00