East asian variant of aldehyde dehydrogenase 2 is associated with coronary spastic angina: possible roles of reactive aldehydes and implications of alcohol flushing syndrome.

abstract：BACKGROUND:Resetting has been used to characterize reentrant circuits causing clinical tachycardias. METHODS AND RESULTS:To determine the mechanisms of resetting, sustained ventricular tachycardia was induced in dogs with 4-day-old myocardial infarctions by programmed stimulation. Premature stimulation was accomplishe...

journal_title：Circulation

authors： Hanna MS,Coromilas J,Josephson ME,Wit AL,Peters NS

更新日期：2001-02-27 00:00:00

abstract：BACKGROUND:Exercise echocardiography (digital cine-loop technique) and 201Tl single-photon emission computed tomography (SPECT) were performed simultaneously in 292 patients being evaluated for coronary artery disease. METHODS AND RESULTS:Pretreadmill and posttreadmill echocardiographic images of diagnostic quality we...

journal_title：Circulation

authors： Quiñones MA,Verani MS,Haichin RM,Mahmarian JJ,Suarez J,Zoghbi WA

更新日期：1992-03-01 00:00:00

abstract：BACKGROUND:Proprotein convertase subtilisin kexin type 9 (PCSK9) promotes the degradation of the low-density lipoprotein (LDL) receptor (LDLR), and its deficiency in humans results in low plasma LDL cholesterol and protection against coronary heart disease. Recent evidence indicates that PCSK9 also modulates the metabo...

journal_title：Circulation

authors： Rashid S,Tavori H,Brown PE,Linton MF,He J,Giunzioni I,Fazio S

更新日期：2014-07-29 00:00:00

abstract：:After a change in cardiac output, the magnitude of potential blood volume redistribution was investigated in 10 dogs anesthetized with chloralose. All of the venous return was pumped into a reservoir, using servocontrolled pumps to maintain fixed superior and inferior vena cava pressures. The cardiac output was set at...

journal_title：Circulation

authors： Rothe CF,Gaddis ML

更新日期：1990-01-01 00:00:00

abstract：BACKGROUND:In hypertrophic cardiomyopathy, a spectrum of mitral leaflet abnormalities has been related to the mechanism of mitral systolic anterior motion (SAM), which causes both subaortic obstruction and mitral regurgitation. In the individual patient, SAM and regurgitation vary in parallel; clinically, however, grea...

journal_title：Circulation

authors： Schwammenthal E,Nakatani S,He S,Hopmeyer J,Sagie A,Weyman AE,Lever HM,Yoganathan AP,Thomas JD,Levine RA

更新日期：1998-09-01 00:00:00

abstract：BACKGROUND:The timing of onset of angina before myocardial infarction in relation to outcome is unknown. METHODS AND RESULTS:We prospectively determined the importance of the time of onset of preinfarction angina in relation to 30-day outcomes in the TIMI-9B study from standardized forms. Of the 3002 patients entered ...

journal_title：Circulation

authors： Kloner RA,Shook T,Antman EM,Cannon CP,Przyklenk K,Yoo K,McCabe CH,Braunwald E

更新日期：1998-03-24 00:00:00

abstract：BACKGROUND:Our objective was to investigate the association between hypertension and concurrent impairments in mobility, cognition, and mood; the role of brain white matter hyperintensities in mediating this association; and the impact of these impairments on disability and mortality in elderly hypertensive individuals...

journal_title：Circulation

authors： Hajjar I,Quach L,Yang F,Chaves PH,Newman AB,Mukamal K,Longstreth W Jr,Inzitari M,Lipsitz LA

更新日期：2011-03-01 00:00:00

abstract：BACKGROUND:Sirolimus-eluting stents have been reported to be effective in the treatment of coronary bifurcations. Still, it has not been fully clarified which strategy would provide the best results with true bifurcation lesions. METHODS AND RESULTS:The CACTUS trial (Coronary bifurcations: Application of the Crushing ...

journal_title：Circulation

authors： Colombo A,Bramucci E,Saccà S,Violini R,Lettieri C,Zanini R,Sheiban I,Paloscia L,Grube E,Schofer J,Bolognese L,Orlandi M,Niccoli G,Latib A,Airoldi F

更新日期：2009-01-06 00:00:00

abstract：BACKGROUND:Fibrinogen binding to the active conformation of the alpha(IIb)beta(3) integrin receptor (glycoprotein IIb/IIIa) and cytoskeletal reorganization are important events in platelet function. Tyrosine phosphorylation of platelet proteins plays an essential role in platelet signal transduction pathways. We studie...

journal_title：Circulation

authors： Santos MT,Moscardó A,Vallés J,Martínez M,Piñón M,Aznar J,Broekman MJ,Marcus AJ

更新日期：2000-10-17 00:00:00

abstract：:Patients with systemic morphological right ventricles (RVs), including congenitally corrected transposition of the great arteries and dextro-transposition of the great arteries with a Mustard or Senning atrial baffle repair, have a high likelihood of developing systemic ventricular dysfunction. Unfortunately, there ar...

journal_title：Circulation

authors： Zaragoza-Macias E,Zaidi AN,Dendukuri N,Marelli A

更新日期：2019-04-02 00:00:00

abstract：BACKGROUND:Hypertrophic cardiomyopathy patients exhibit myocardial energetic impairment, but a causative role for this energy deficiency in the pathophysiology of hypertrophic cardiomyopathy remains unproven. We hypothesized that the metabolic modulator perhexiline would ameliorate myocardial energy deficiency and ther...

journal_title：Circulation

authors： Abozguia K,Elliott P,McKenna W,Phan TT,Nallur-Shivu G,Ahmed I,Maher AR,Kaur K,Taylor J,Henning A,Ashrafian H,Watkins H,Frenneaux M

更新日期：2010-10-19 00:00:00

abstract：BACKGROUND:Exercise stimulates the vascular response in pathological conditions, including ischemia; however, the molecular mechanisms by which exercise improves the impaired hypoxia-induced factor (HIF)-1 alpha-mediated response to hypoxia associated with aging are poorly understood. Here, we report that swimming trai...

journal_title：Circulation

authors： Cheng XW,Kuzuya M,Kim W,Song H,Hu L,Inoue A,Nakamura K,Di Q,Sasaki T,Tsuzuki M,Shi GP,Okumura K,Murohara T

更新日期：2010-08-17 00:00:00

abstract：BACKGROUND:Cardiopulmonary resuscitation (CPR) is initiated in hospitalized children with bradycardia and poor perfusion. However, their rate of progression to pulseless cardiac arrest despite CPR and the differences in survival compared with initially pulseless arrest are unknown. We examined the prevalence and predic...

journal_title：Circulation

authors： Khera R,Tang Y,Girotra S,Nadkarni VM,Link MS,Raymond TT,Guerguerian AM,Berg RA,Chan PS,American Heart Association’s Get With the Guidelines-Resuscitation Investigators.

更新日期：2019-07-30 00:00:00

abstract：BACKGROUND:The overall performance of available mechanical intravascular ultrasound catheters for fetal transesophageal echocardiography during fetoscopic fetal cardiac interventions in sheep has been limited by radioelectronic interference, low system frame rates, and low acoustic outputs. Therefore, a more reliable d...

journal_title：Circulation

authors： Kohl T,Westphal M,Strümper D,Achenbach S,Halimeh S,Petry P,Aryee S,Buller T,Aleksiene R,Asfour B,Witteler R,Vogt J,Van Aken H,Scheld HH

更新日期：2001-10-09 00:00:00

abstract：:To estimate the effect of distance between the electrode and the signal source on the amplitude of the His bundle electrogram (HBE) recorded during open heart surgery, a specially designed probe, containing six pairs of closely spaced (1 mm) electrodes was placed on the endocardial surface of the right atrium such tha...

journal_title：Circulation

authors： Dick M 2nd,Krongrad E,Antar RE,Ross S,Bowman FO Jr,Malm JR,Hoffman BF

更新日期：1976-02-01 00:00:00

abstract：:To assess the effects of angioplasty (PTCA) and intracoronary streptokinase (ICSK) on relative myocardial perfusion, we administered 99mTc-macroaggregated albumin (MAA) to the uninvolved coronary artery before successful PTCA in 33 patients and before successful infusion of ICSK in eight patients and of 111In-MAA into...

journal_title：Circulation

authors： Wahr DW,Ports TA,Botvinick EH,Dae M,Schechtmann N,Huberty J,Hattner RS,O'Connell JW,Turley K

更新日期：1985-08-01 00:00:00

abstract：BACKGROUND:Denervation supersensitivity has been proposed as a mechanism for the relation between ventricular arrhythmias and the sympathetic nervous system. Evaluation of this phenomenon in humans has become feasible only recently with the development of noninvasive scintigraphic methods for evaluating the pattern of ...

journal_title：Circulation

authors： Calkins H,Allman K,Bolling S,Kirsch M,Wieland D,Morady F,Schwaiger M

更新日期：1993-07-01 00:00:00

abstract：BACKGROUND:The clinical efficacy of alcohol septal ablation for drug-refractory hypertrophic cardiomyopathy remains unclear. This study examines the outcome of alcohol septal ablation performed at a tertiary hypertrophic cardiomyopathy referral center. METHODS AND RESULTS:Among 601 patients with severely symptomatic o...

journal_title：Circulation

authors： Sorajja P,Valeti U,Nishimura RA,Ommen SR,Rihal CS,Gersh BJ,Hodge DO,Schaff HV,Holmes DR Jr

更新日期：2008-07-08 00:00:00

abstract：BACKGROUND:Monocarboxylate transporters (MCTs) mediate lactate transport across the plasma membrane of cells. The molecular mechanisms regulating monocarboxylate transport in smooth muscle cells (SMCs) remain poorly characterized. The aim of this study was to investigate the effects of DNA methylation on MCT expression...

journal_title：Circulation

authors： Zhu S,Goldschmidt-Clermont PJ,Dong C

更新日期：2005-08-30 00:00:00

abstract：BACKGROUND:The heart contains a variety of morphologically distinct nerve terminals known to influence cardiac function. Little is known about the distribution, morphology, and neurochemistry of these terminals in the human heart. METHODS AND RESULTS:We examined the entire endocardial and epicardial surfaces of infant...

journal_title：Circulation

authors： Marron K,Wharton J,Sheppard MN,Fagan D,Royston D,Kuhn DM,de Leval MR,Whitehead BF,Anderson RH,Polak JM

更新日期：1995-10-15 00:00:00

abstract：BACKGROUND:Patients with atrial fibrillation (AF) often take multiple medications. METHODS AND RESULTS:We examined characteristics and compared adjusted outcomes between rivaroxaban and warfarin according to number of concomitant baseline medications and the presence of combined cytochrome P450 3A4 and P-glycoprotein ...

journal_title：Circulation

authors： Piccini JP,Hellkamp AS,Washam JB,Becker RC,Breithardt G,Berkowitz SD,Halperin JL,Hankey GJ,Hacke W,Mahaffey KW,Nessel CC,Singer DE,Fox KA,Patel MR

更新日期：2016-01-26 00:00:00

abstract：BACKGROUND:It has been proposed that bone marrow-derived cells infiltrate the neointima, where they differentiate into smooth muscle (SM) cells; however, technical limitations have hindered clear identification of the lineages of bone marrow-derived "SM cell-like" cells. METHODS AND RESULTS:Using a specific antibody a...

journal_title：Circulation

authors： Iwata H,Manabe I,Fujiu K,Yamamoto T,Takeda N,Eguchi K,Furuya A,Kuro-o M,Sata M,Nagai R

更新日期：2010-11-16 00:00:00

abstract：BACKGROUND:The endothelium acts as the sensor of shear stress and as the mediator of flow-induced changes in vessel tone and structure. The purpose of this study was to delineate the signal transduction pathway of flow-induced release of endothelium-derived relaxing factor (EDRF). METHODS AND RESULTS:We used a shear s...

journal_title：Circulation

authors： Ohno M,Gibbons GH,Dzau VJ,Cooke JP

更新日期：1993-07-01 00:00:00

abstract：BACKGROUND:The purpose of this study was to determine the minimum hematocrit (Hct) supporting cerebral oxygenation over the range clinically relevant cardiopulmonary bypass (CPB) temperatures in dogs. The effect of hemodilution on cerebral blood flow (CBF), cerebral metabolic rate (CMRO2), and cerebral oxygen delivery ...

journal_title：Circulation

authors： Cook DJ,Orszulak TA,Daly RC

更新日期：1998-11-10 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 AND PURPOSE:The guidelines presented in this consensus statement are intended to serve researchers, clinicians, reviewers, and regulators in the selection of the most appropriate primary outcome for a clinical trial of cardiac arrest therapies. The American Heart Association guidelines for the treatment of c...

journal_title：Circulation

authors： Becker LB,Aufderheide TP,Geocadin RG,Callaway CW,Lazar RM,Donnino MW,Nadkarni VM,Abella BS,Adrie C,Berg RA,Merchant RM,O'Connor RE,Meltzer DO,Holm MB,Longstreth WT,Halperin HR,American Heart Association Emergency Cardiova

更新日期：2011-11-08 00:00:00

abstract：BACKGROUND:We have developed a new measure of myocardial viability, the water-perfusable tissue index (PTI), which is calculated from transmission, C15O, and H2(15)O positron emission tomography (PET) data sets. It is defined as the proportion of the total anatomical tissue within a given region of interest (ROI) that ...

journal_title：Circulation

authors： Yamamoto Y,de Silva R,Rhodes CG,Araujo LI,Iida H,Rechavia E,Nihoyannopoulos P,Hackett D,Galassi AR,Taylor CJ

更新日期：1992-07-01 00:00:00

abstract：:A definitive diagnosis of myocarditis requires right ventricular biopsy. Despite its specificity, however, right ventricular biopsy may lack sensitivity due to the focal nature of the disease. Because indium 111-monoclonal antimyosin antibody imaging can be used to detect myocardial necrosis, this procedure was perfor...

journal_title：Circulation

authors： Yasuda T,Palacios IF,Dec GW,Fallon JT,Gold HK,Leinbach RC,Strauss HW,Khaw BA,Haber E

更新日期：1987-08-01 00:00:00

abstract：:Cardiac arrest systems of care are successfully coordinating community, emergency medical services, and hospital efforts to improve the process of care for patients who have had a cardiac arrest. As a result, the number of people surviving sudden cardiac arrest is increasing. However, physical, cognitive, and emotiona...

journal_title：Circulation

authors： Sawyer KN,Camp-Rogers TR,Kotini-Shah P,Del Rios M,Gossip MR,Moitra VK,Haywood KL,Dougherty CM,Lubitz SA,Rabinstein AA,Rittenberger JC,Callaway CW,Abella BS,Geocadin RG,Kurz MC,American Heart Association Emergency Cardiovasc

更新日期：2020-03-24 00:00:00

abstract：:The electrophysiologic mechanisms for the initiation and termination of re-entrant ventricular arrhythmias (RVA) were critically analyzed in dogs 3-7 days following ligation of the anterior descending coronary artery, utilizing direct recordings of the re-entrant pathway (RP) from the epicardial surface of the infarct...

journal_title：Circulation

authors： El-Sherif N,Hope RR,Scherlag BJ,Lazzara R

更新日期：1977-05-01 00:00:00