Firing properties of single muscle vasoconstrictor neurons in the sympathoexcitation associated with congestive heart failure.

Abstract:

BACKGROUND:Congestive heart failure (CHF) in humans is associated with a marked sympathoexcitation, including an augmented muscle sympathetic nerve activity (MSNA) in intraneural multiunit recordings. In the present study, single-unit recording was used to evaluate whether the firing properties of individual muscle vasoconstrictor neurons can reveal underlying mechanisms for this increase in MSNA. METHODS AND RESULTS:Eight patients with CHF (NYHA class II to IV; left ventricular ejection fraction, 29+/-5%, mean+/-SEM) were studied. In standard multiunit recordings, MSNA burst incidence (bursts/100 heartbeats) ranged from 65% to 100% (88+/-5%). Using selective tungsten microelectrodes, we made recordings from 16 single muscle vasoconstrictor axons. Mean unit firing probability (ie, the percentage of cardiac intervals in which a single axon fired) was 54.5+/-5.2% (range, 21 to 89%), and mean firing frequency was 0.98+/-0.22 Hz (0.14 to 3.86 Hz), both of which were higher than seen previously in healthy subjects (P<0.001). Although single neurons occasionally generated multiple spikes per sympathetic burst, such multiple firing was rare and was not different from that seen in healthy subjects. CONCLUSIONS:An increased firing frequency of individual vasoconstrictor neurons is one mechanism for the increased number of multiunit MSNA bursts at rest in CHF. The neurons discharge in more diastoles than in healthy subjects (ie, firing probability is increased), but the likelihood of discharging >1 impulse per sympathetic burst is not increased. Despite the intense multiunit activity at rest, the firing characteristics of individual vasoconstrictor axons indicate a remaining capacity for transient increases of MSNA in CHF.

journal_name

Circulation

journal_title

Circulation

authors

Macefield VG,Rundqvist B,Sverrisdottir YB,Wallin BG,Elam M

doi

10.1161/01.cir.100.16.1708

subject

Has Abstract

pub_date

1999-10-19 00:00:00

pages

1708-13

issue

16

eissn

0009-7322

issn

1524-4539

journal_volume

100

pub_type

杂志文章
  • High-frequency jet ventilation for respiratory failure after congenital heart surgery.

    abstract:BACKGROUND:Extracorporeal membrane oxygenation (ECMO) is considered when respiratory failure (RF) persists despite increasing conventional mechanical ventilation (CMV). High-frequency jet ventilation (HFJV) can improve ventilation with comparable mean airway pressure (PAW) to that found on CMV. This study was undertake...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:

    authors: Kocis KC,Meliones JN,Dekeon MK,Callow LB,Lupinetti FM,Bove EL

    更新日期:1992-11-01 00:00:00

  • Effect of increased exercise in school children on physical fitness and endothelial progenitor cells: a prospective randomized trial.

    abstract:BACKGROUND:The aim of this prospective, randomized study was to examine whether additional school exercise lessons would result in improved peak oxygen uptake (primary end point) and body mass index-standard deviation score, motor and coordinative abilities, circulating progenitor cells, and high-density lipoprotein ch...

    journal_title:Circulation

    pub_type: 杂志文章,随机对照试验

    doi:10.1161/CIRCULATIONAHA.109.865808

    authors: Walther C,Gaede L,Adams V,Gelbrich G,Leichtle A,Erbs S,Sonnabend M,Fikenzer K,Körner A,Kiess W,Bruegel M,Thiery J,Schuler G

    更新日期:2009-12-01 00:00:00

  • Early left ventricular dysfunction elicits activation of sympathetic drive and attenuation of parasympathetic tone in the paced canine model of congestive heart failure.

    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

    pub_type: 杂志文章

    doi:10.1161/01.cir.92.3.555

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

    更新日期:1995-08-01 00:00:00

  • Concordance for coronary risk factors among spouses.

    abstract::Values for several coronary risk factors, including systolic and diastolic blood pressure, serum cholesterol, triglycerides, blood glucose, uric acid, hemoglobin, weight, vitral capacity and cigarette smoking have been found to be similar among spouses in the Framingham Study. However, longitudinal analyses show that...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.52.4.589

    authors: Sackett DL,Anderson GD,Milner R,Feinleib M,Kannel WB

    更新日期:1975-10-01 00:00:00

  • Low-dose aspirin inhibits platelet-induced contraction of the human isolated coronary artery. A role for additional 5-hydroxytryptamine receptor antagonism against coronary vasospasm?

    abstract:BACKGROUND:The beneficial effect of low-dose aspirin in the prevention of coronary vasospasm is well documented. In this study, we investigated the contractile effect of human washed platelets on the human isolated coronary artery. We concentrated on the effect of low-dose aspirin (40 mg/d) taken by the platelet donor ...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.89.2.623

    authors: Bax WA,Renzenbrink GJ,van der Linden EA,Zijlstra FJ,van Heuven-Nolsen D,Fekkes D,Bos E,Saxena PR

    更新日期:1994-02-01 00:00:00

  • Antiplatelet drug response status does not predict recurrent ischemic events in stable cardiovascular patients: results of the Antiplatelet Drug Resistances and Ischemic Events study.

    abstract:BACKGROUND:The biological response to antiplatelet drugs has repeatedly been shown to predict the recurrence of major adverse cardiovascular events (MACEs). However, most studies involved coronary artery disease patients with recent vessel injury shortly after the initiation of antiplatelet therapy. Data on stable card...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/CIRCULATIONAHA.111.085464

    authors: Reny JL,Berdagué P,Poncet A,Barazer I,Nolli S,Fabbro-Peray P,Schved JF,Bounameaux H,Mach F,de Moerloose P,Fontana P,Antiplatelet Drug Resistances and Ischemic Events (ADRIE) Study Group.

    更新日期:2012-06-26 00:00:00

  • Alternative Strategies to Achieve Cardiovascular Mortality Goals in China and India: A Microsimulation of Target- Versus Risk-Based Blood Pressure Treatment.

    abstract:BACKGROUND:The World Health Organization aims to reduce mortality from chronic diseases including cardiovascular disease (CVD) by 25% by 2025. High blood pressure is a leading CVD risk factor. We sought to compare 3 strategies for treating blood pressure in China and India: a treat-to-target (TTT) strategy emphasizing ...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/CIRCULATIONAHA.115.019985

    authors: Basu S,Yudkin JS,Sussman JB,Millett C,Hayward RA

    更新日期:2016-03-01 00:00:00

  • Participation of tyrosine phosphorylation in cytoskeletal reorganization, alpha(IIb)beta(3) integrin receptor activation, and aspirin-insensitive mechanisms of thrombin-stimulated human platelets.

    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

    pub_type: 杂志文章

    doi:10.1161/01.cir.102.16.1924

    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

  • Randomized crossover comparison of DDDR versus VDD pacing after atrioventricular junction ablation for prevention of atrial fibrillation. The atrial pacing peri-ablation for paroxysmal atrial fibrillation (PA (3)) study investigators.

    abstract:BACKGROUND:Some clinical data suggest that atrial-based pacing prevents paroxysmal atrial fibrillation (AF). This study tested the hypothesis that DDDR pacing compared with VDD pacing prevents AF after atrioventricular (AV) junction ablation. METHODS AND RESULTS:Patients were randomized to DDDR pacing (n=33) or to VDD...

    journal_title:Circulation

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1161/01.cir.102.7.736

    authors: Gillis AM,Connolly SJ,Lacombe P,Philippon F,Dubuc M,Kerr CR,Yee R,Rose MS,Newman D,Kavanagh KM,Gardner MJ,Kus T,Wyse DG

    更新日期:2000-08-15 00:00:00

  • Early metoprolol administration before coronary reperfusion results in increased myocardial salvage: analysis of ischemic myocardium at risk using cardiac magnetic resonance.

    abstract:BACKGROUND:Beta-blockers improve clinical outcome when administered early after acute myocardial infarction. However, whether beta-blockers actually reduce the myocardial infarction size is still in dispute. Cardiac magnetic resonance imaging can accurately depict the left ventricular (LV) ischemic myocardium at risk (...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/CIRCULATIONAHA.106.679639

    authors: Ibanez B,Prat-González S,Speidl WS,Vilahur G,Pinero A,Cimmino G,García MJ,Fuster V,Sanz J,Badimon JJ

    更新日期:2007-06-12 00:00:00

  • Attenuated progression of coronary artery disease after 6 years of multifactorial risk intervention: role of physical exercise.

    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

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1161/01.cir.96.8.2534

    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

  • Smooth muscle cell abundance and fibroblast growth factors in coronary lesions of patients with nonfatal unstable angina. A clue to the mechanism of transformation from the stable to the unstable clinical state.

    abstract:BACKGROUND:The mechanisms responsible for the transformation of stable angina to unstable angina, a major cause of morbidity and mortality, are commonly believed to be plaque rupture and thrombosis. We determined whether additional mechanisms are operative by analyzing the histopathology and immuno-histopathology of co...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.88.6.2493

    authors: Flugelman MY,Virmani R,Correa R,Yu ZX,Farb A,Leon MB,Elami A,Fu YM,Casscells W,Epstein SE

    更新日期:1993-12-01 00:00:00

  • Atrial giant cell myocarditis: a distinctive clinicopathologic entity.

    abstract:BACKGROUND:Giant cell myocarditis (GCM) typically causes fulminant heart failure, arrhythmias, or heart block, necessitating aggressive immunosuppression, ventricular assist device insertion, or cardiac transplantation. We describe a novel variant of GCM, primarily involving the atria, that displays distinctive clinica...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/CIRCULATIONAHA.112.128900

    authors: Larsen BT,Maleszewski JJ,Edwards WD,Cooper LT Jr,Sobonya RE,Thompson VE,Duckett SG,Peebles CR,Simpson IA,Tazelaar HD

    更新日期:2013-01-01 00:00:00

  • Genetic determinants of dabigatran plasma levels and their relation to bleeding.

    abstract:BACKGROUND:Fixed-dose unmonitored treatment with dabigatran etexilate is effective and has a favorable safety profile in the prevention of stroke in atrial fibrillation patients compared with warfarin. We hypothesized that genetic variants could contribute to interindividual variability in blood concentrations of the a...

    journal_title:Circulation

    pub_type: 杂志文章,随机对照试验

    doi:10.1161/CIRCULATIONAHA.112.001233

    authors: Paré G,Eriksson N,Lehr T,Connolly S,Eikelboom J,Ezekowitz MD,Axelsson T,Haertter S,Oldgren J,Reilly P,Siegbahn A,Syvanen AC,Wadelius C,Wadelius M,Zimdahl-Gelling H,Yusuf S,Wallentin L

    更新日期:2013-04-02 00:00:00

  • Prognostic significance of microvascular obstruction by magnetic resonance imaging in patients with acute myocardial infarction.

    abstract:BACKGROUND:The extent of microvascular obstruction during acute coronary occlusion may determine the eventual magnitude of myocardial damage and thus, patient prognosis after infarction. By contrast-enhanced MRI, regions of profound microvascular obstruction at the infarct core are hypoenhanced and correspond to greate...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.97.8.765

    authors: Wu KC,Zerhouni EA,Judd RM,Lugo-Olivieri CH,Barouch LA,Schulman SP,Blumenthal RS,Lima JA

    更新日期:1998-03-03 00:00:00

  • Beta fibrinogen gene polymorphisms are associated with plasma fibrinogen and coronary artery disease in patients with myocardial infarction. The ECTIM Study. Etude Cas-Temoins sur l'Infarctus du Myocarde.

    abstract:BACKGROUND:Polymorphisms of the beta fibrinogen gene have been shown to affect plasma fibrinogen levels and the risk of peripheral arterial disease. We now present the results of a detailed analysis of the beta fibrinogen gene in relation to plasma fibrinogen and to the severity of coronary artery disease (CAD) in pati...

    journal_title:Circulation

    pub_type: 杂志文章,多中心研究

    doi:10.1161/01.cir.93.3.440

    authors: Behague I,Poirier O,Nicaud V,Evans A,Arveiler D,Luc G,Cambou JP,Scarabin PY,Bara L,Green F,Cambien F

    更新日期:1996-02-01 00:00:00

  • Quantitative coronary arteriography: estimation of dimensions, hemodynamic resistance, and atheroma mass of coronary artery lesions using the arteriogram and digital computation.

    abstract::More accurate characterization of coronary artery lesions is needed for evaluation of short and long-term interventions in coronary disease. A method of segmental artery analysis has been developed to maximize the information obtained from coronary arteriograms. Coronary lesions are traced from two projected, perpendi...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.55.2.329

    authors: Brown BG,Bolson E,Frimer M,Dodge HT

    更新日期:1977-02-01 00:00:00

  • Ranolazine stimulates glucose oxidation in normoxic, ischemic, and reperfused ischemic rat hearts.

    abstract:BACKGROUND:Ranolazine is a novel antianginal agent that may reduce symptoms without affecting hemodynamics and has shown cardiac antiischemic effects in in vivo and in vitro models. In one study it increased active pyruvate dehydrogenase (PDHa). Other agents that increase PDHa and so increase glucose and decrease fatty...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.93.1.135

    authors: McCormack JG,Barr RL,Wolff AA,Lopaschuk GD

    更新日期:1996-01-01 00:00:00

  • Ventricular septal defects.

    abstract::Ventricular septal defects are the most common congenital heart defect. They vary greatly in location, clinical presentation, associated lesions, and natural history. The present article describes the clinical aspects of ventricular septal defects and current management strategies. ...

    journal_title:Circulation

    pub_type: 杂志文章,评审

    doi:10.1161/CIRCULATIONAHA.106.618124

    authors: Minette MS,Sahn DJ

    更新日期:2006-11-14 00:00:00

  • Effects of carvedilol on left ventricular remodeling after acute myocardial infarction: the CAPRICORN Echo Substudy.

    abstract:BACKGROUND:The CAPRICORN trial has shown that carvedilol improved outcome in patients with left ventricular dysfunction after acute myocardial infarction treated with ACE inhibitors. The aim of this substudy was to determine the effects of carvedilol on left ventricular remodeling in this patient group. METHODS AND RE...

    journal_title:Circulation

    pub_type: 临床试验,杂志文章,多中心研究,随机对照试验

    doi:10.1161/01.CIR.0000108928.25690.94

    authors: Doughty RN,Whalley GA,Walsh HA,Gamble GD,López-Sendón J,Sharpe N,CAPRICORN Echo Substudy Investigators.

    更新日期:2004-01-20 00:00:00

  • Can physical activity mitigate the effects of aging in middle-aged women?

    abstract:BACKGROUND:Aging is associated with an increased risk of women dying from coronary heart disease as well as from all causes combined. Alterations in the major biological risk factors for early coronary heart disease and all-cause mortality are frequently seen in aging. METHODS AND RESULTS:The present investigation tes...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.85.4.1265

    authors: Owens JF,Matthews KA,Wing RR,Kuller LH

    更新日期:1992-04-01 00:00:00

  • Quality of care for acute coronary syndrome patients with known atherosclerotic disease: results from the Get With the Guidelines Program.

    abstract:BACKGROUND:Patients with prior atherosclerosis in 1 or more vascular territories (coronary, cerebrovascular, or peripheral arterial) who present with acute coronary syndromes have high cardiovascular risk and may benefit significantly from evidence-based therapies, yet whether these are used consistently is unknown. M...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/CIRCULATIONAHA.109.877092

    authors: Brilakis ES,Hernandez AF,Dai D,Peterson ED,Banerjee S,Fonarow GC,Cannon CP,Bhatt DL

    更新日期:2009-08-18 00:00:00

  • Effect of baseline or changes in adrenergic activity on clinical outcomes in the beta-blocker evaluation of survival trial.

    abstract:BACKGROUND:Adrenergic activation is thought to be an important determinant of outcome in subjects with chronic heart failure (CHF), but baseline or serial changes in adrenergic activity have not been previously investigated in a large patient sample treated with a powerful antiadrenergic agent. METHODS AND RESULTS:Sys...

    journal_title:Circulation

    pub_type: 临床试验,杂志文章,多中心研究,随机对照试验

    doi:10.1161/01.CIR.0000141297.50027.A4

    authors: Bristow MR,Krause-Steinrauf H,Nuzzo R,Liang CS,Lindenfeld J,Lowes BD,Hattler B,Abraham WT,Olson L,Krueger S,Thaneemit-Chen S,Hare JM,Loeb HS,Domanski MJ,Eichhorn EJ,Zelis R,Lavori P

    更新日期:2004-09-14 00:00:00

  • Increased neointimal formation after surgical vein grafting in a murine model of type 2 diabetes.

    abstract:BACKGROUND:Diabetes is an independent risk factor for the development of neointimal hyperplasia and subsequent vein graft failure after coronary or peripheral artery bypass grafting. We evaluate a new mouse model of surgical vein grafting to investigate the mechanisms of neointimal formation in the setting of type 2 di...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/CIRCULATIONAHA.105.001339

    authors: Salzberg SP,Filsoufi F,Anyanwu A,von Harbou K,Karlof E,Carpentier A,Dansky HM,Adams DH

    更新日期:2006-07-04 00:00:00

  • A prospective randomized study of a modified technique of ultrafiltration during pediatric open-heart surgery.

    abstract::Conventional ultrafiltration (UF) fails to reverse satisfactorily hemodilution and the rise in total body water (TBW) seen after cardiopulmonary bypass (CPB). We have modified the technique, timing, and placement of UF in the CPB circuit and in pilot studies observed controlled elevation of hematocrit and a significan...

    journal_title:Circulation

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:

    authors: Naik SK,Knight A,Elliott M

    更新日期:1991-11-01 00:00:00

  • Morphological predictors of restenosis after coronary stenting in humans.

    abstract:BACKGROUND:Experimental studies suggest that arterial injury and inflammation lead to increased neointimal growth after stenting. Despite the increased use of coronary stents in humans, there are only limited pathological data on the morphological features of in-stent restenosis. METHODS AND RESULTS:Detailed histology...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.0000019071.72887.bd

    authors: Farb A,Weber DK,Kolodgie FD,Burke AP,Virmani R

    更新日期:2002-06-25 00:00:00

  • Hospital Variation in Time to Epinephrine for Nonshockable In-Hospital Cardiac Arrest.

    abstract:BACKGROUND:For patients with in-hospital cardiac arrests attributable to nonshockable rhythms, delays in epinephrine administration beyond 5 minutes is associated with worse survival. However, the extent of hospital variation in delayed epinephrine administration and its effect on hospital-level outcomes is unknown. M...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/CIRCULATIONAHA.116.025459

    authors: Khera R,Chan PS,Donnino M,Girotra S,American Heart Association’s Get With The Guidelines-Resuscitation Investigators.

    更新日期:2016-12-20 00:00:00

  • Twenty-four-hour ambulatory blood pressure in shift workers.

    abstract::Blood pressure and heart rate of 15 male shift workers were measured every 15 minutes for 24 hours during three work shifts: morning, 4:00 AM to noon; afternoon, noon to 8:00 PM; and night, 8:00 PM to 4:00 AM. For each shift, 24-hour systolic and diastolic blood pressure showed a large "trough" (the low pressure span)...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.80.2.341

    authors: Chau NP,Mallion JM,de Gaudemaris R,Ruche E,Siche JP,Pelen O,Mathern G

    更新日期:1989-08-01 00:00:00

  • Significance of a fragmented QRS complex versus a Q wave in patients with coronary artery disease.

    abstract:BACKGROUND:Q waves on a 12-lead ECG are markers of a prior myocardial infarction (MI). However, they may regress or even disappear over time, and there is no specific ECG sign of a non-Q-wave MI. Fragmented QRS complexes (fQRSs), which include various RSR' patterns, without a typical bundle-branch block are markers of ...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/CIRCULATIONAHA.105.595892

    authors: Das MK,Khan B,Jacob S,Kumar A,Mahenthiran J

    更新日期:2006-05-30 00:00:00

  • Protection of endothelium in vessel segments excised for grafting.

    abstract::Contracture and collapse often complicate dissection and excision of blood vessels for grafting. Subsequent forceful redilatation and leak checking with cold saline almost always lead to partial or total denudation of endothelium, which increases the risk of early occlusion by thrombi or late occlusion by fibrocellula...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:

    authors: Haudenschild C,Gould KE,Quist WC,LoGerfo FW

    更新日期:1981-08-01 00:00:00