Physiological influences on perfusion imaging in transient myocardial ischaemia: importance of early distribution of thallium-201.

Abstract:

:We tested the hypothesis that visualisation of defects on thallium-201 (201Tl) myocardial perfusion images (MPI) depends on the duration of the ischaemic state between 201Tl injection and the time of reperfusion of an occluded coronary artery. Praecordial imaging with a gamma camera was performed in 24 anaesthetised, open-chest dogs with transient coronary occlusion. Results indicated that if the duration of the ischaemic state after 201Tl injection was less than 3 min before reperfusion, then the MPI 5 to 15 min after 201Tl injection was falsely negative (201Tl activity in zone (IZ)/normal zone (NZ)greater than 0.85). Dogs which were ischaemic more than 5 min always had MPI defects 5 to 15 min after 201Tl injection (IZ/NZ201Tl ratio less than 0.85). MPI results (201Tl IZ/NZ) 15 min after 201Tl injection were determined by the duration of the ischaemic state after 201Tl injection (r = -0.86) because prolonged ischaemia allowed 201Tl to distribute from blood to myocardium before reperfusion: 201Tl (IZ/NZ( = 0.356 +/- 1.00 (fraction of total 201Tl remaining in blood at the end of the ischaemic state), r = 0.94.

journal_name

Cardiovasc Res

journal_title

Cardiovascular research

authors

Patterson RE,Halgash DA,Horowitz SF,Miceli K,Eng C,Goldsmith SJ

doi

10.1093/cvr/16.1.47

subject

Has Abstract

pub_date

1982-01-01 00:00:00

pages

47-54

issue

1

eissn

0008-6363

issn

1755-3245

journal_volume

16

pub_type

杂志文章
  • Carbohydrate- and CD18-dependent neutrophil adhesion to cardiac myocytes: effects of adenosine.

    abstract:OBJECTIVE:Adenosine inhibits neutrophil adhesion and injury to isolated cardiac myocytes. In the present study, the contribution of selectin and CD18 interactions to neutrophil-myocyte adhesion and their sensitivity to adenosine were assessed. METHODS:Activated human neutrophils and canine myocytes were incubated with...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1016/0008-6363(96)00052-1

    authors: Bullough DA,Magill MJ,Mullane KM,Firestein GS

    更新日期:1996-08-01 00:00:00

  • Assessment of the functional status of heart failure in non ischemic dilated cardiomyopathy: an echo-dobutamine study.

    abstract:BACKGROUND:The functional status of heart failure (HF) is conventionally evaluated by peak exercise oxygen consumption (VO2 max). Dobutamine echocardiography can be used to evaluate myocardial reserve. The aim of this study was to estimate the functional status of chronic HF in patients with dilated cardiomyopathy, by ...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1016/s0008-6363(98)00345-9

    authors: Paraskevaidis IA,Tsiapras DP,Adamopoulos S,Kremastinos DT

    更新日期:1999-07-01 00:00:00

  • Myocardial protection with verapamil during ischaemia and reperfusion: dissociation between myocardial salvage and the degree of ATP depletion during ischaemia.

    abstract:STUDY OBJECTIVE:The aim was to evaluate the protective effect of verapamil during myocardial ischaemia and reperfusion. DESIGN:In vivo phosphorus-31 (31P) magnetic resonance spectroscopy was performed on rats pretreated with verapamil (mg.kg-1 intraperitoneal) and controls during a 45 min left coronary artery occlusio...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/25.2.101

    authors: Wolfe CL,Donnelly TJ,Sievers R,Parmley WW

    更新日期:1991-02-01 00:00:00

  • Human connexin40 gap junction channels are modulated by cAMP.

    abstract:OBJECTIVE:Gap junction channels provide for direct electrical coupling between cells, and play an important role in homeostasis and electrical coupling. One of the proteins that form gap junctions, Connexin40 (Cx40), shows restricted expression in the body, and is found in blood vessels and in the atrium and conduction...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1016/s0008-6363(99)00373-9

    authors: van Rijen HV,van Veen TA,Hermans MM,Jongsma HJ

    更新日期:2000-03-01 00:00:00

  • TRPC3 channel contributes to nitric oxide release: significance during normoxia and hypoxia-reoxygenation.

    abstract:AIMS:Intracellular Ca(2+) ([Ca(2+)](i)) regulation in endothelial cells depends on transient receptor potential channels (TRPs), and the role of canonical TRPs (TRPCs) during hypoxia-reoxygenation (H-R) is unclear. We hypothesized that TRPC3 contributes to endothelial nitric oxide (NO) release and that H-R may reduce T...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/cvr102

    authors: Huang JH,He GW,Xue HM,Yao XQ,Liu XC,Underwood MJ,Yang Q

    更新日期:2011-08-01 00:00:00

  • Lack of effect of anti-hypertensive treatment with felodipine on cardiovascular structure of young spontaneously hypertensive rats.

    abstract::Felodipine (4(2,3-dichlorophenyl)-1,4-dihydro-2, 6-dimethyl-3-ethoxycarbonyl-5-methoxycarbonyl pyridine)), a selective vasodilating anti-hypertensive drug, was used in the treatment of spontaneously hypertensive rats (SHRs) and age-matched Wistar-Kyoto rats (WKYs) from age 6 to 14 weeks, ie during the time of high blo...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/19.9.528

    authors: Nyborg NC,Mulvany MJ

    更新日期:1985-09-01 00:00:00

  • Post-extrasystolic left ventricular peak pressure with and without left ventricular failure.

    abstract::18 patients without valvular pathology, coronary artery disease, or idiopathic hypertrophic subaortic stenosis were haemodynamically and angiographically investigated in order to analyse the effects of a ventricular extrasystolic beat upon the post-extrasystolic left ventricular peak pressure. In eight normal patients...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/13.6.338

    authors: Merillon JP,Motte G,Aumont MC,Masquet C,Lecarpentier Y,Gourgon R

    更新日期:1979-06-01 00:00:00

  • Chronic myocardial infarction in the mouse: cardiac structural and functional changes.

    abstract:OBJECTIVES:We studied the effects of chronic left coronary artery ligation on cardiac structure and function in the mouse. METHODS:Morphometric studies of the left ventricle were performed in coronary artery-ligated and sham-operated animals at one, two, three and five weeks after surgery. The fraction of DNA-synthesi...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1016/s0008-6363(98)00216-8

    authors: Lutgens E,Daemen MJ,de Muinck ED,Debets J,Leenders P,Smits JF

    更新日期:1999-03-01 00:00:00

  • Localisation of neuropeptide Y in nerves of the rat cardiovascular system and the effect of 6-hydroxydopamine.

    abstract::The distribution of neuropeptide Y (NPY) in the rat cardiovascular system has been examined by radioimmunoassay, chromatographic analysis of tissue extracts, and immunocytochemistry. High concentrations of NPY were identified throughout the heart and within the major blood vessels of the rat in particular in the renal...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/19.9.570

    authors: Allen JM,Polak JM,Rodrigo J,Darcy K,Bloom SR

    更新日期:1985-09-01 00:00:00

  • Angiotensin II enhances carotid body chemoreflex control of sympathetic outflow in chronic heart failure rabbits.

    abstract:OBJECTIVES:We investigated whether Angiotensin II (Ang II) modulates peripheral chemoreflex function through carotid body (CB) chemoreceptors in chronic heart failure (CHF). METHODS:We measured renal sympathetic nerve activity (RSNA) in response to graded hypoxia before and after intravenous administration of Ang II (...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1016/j.cardiores.2006.03.017

    authors: Li YL,Xia XH,Zheng H,Gao L,Li YF,Liu D,Patel KP,Wang W,Schultz HD

    更新日期:2006-07-01 00:00:00

  • MicroRNA-195 promotes palmitate-induced apoptosis in cardiomyocytes by down-regulating Sirt1.

    abstract:AIMS:Free fatty acids induce apoptosis in cardiomyocytes, which is implicated in lipotoxic cardiomyopathy. However, the underlying mechanisms remain not fully understood. MicroRNAs (miRNAs) are non-coding small RNAs that control gene expression at the post-transcriptional level. Dysregulated miRNAs have been shown to b...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/cvr145

    authors: Zhu H,Yang Y,Wang Y,Li J,Schiller PW,Peng T

    更新日期:2011-10-01 00:00:00

  • Myocyte contractile function is intact in the post-infarct remodeled rat heart despite molecular alterations.

    abstract:OBJECTIVE:To investigate the cellular mechanisms underlying global and regional LV dysfunction in the post-infarct (MI) remodeled rat hearts. METHODS:LV remodeling and function were quantified by echocardiography, morphometry, in vivo hemodynamics, and isolated perfused heart studies in 6 weeks post-MI and sham-operat...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1016/s0008-6363(00)00160-7

    authors: Gupta S,Prahash AJ,Anand IS

    更新日期:2000-10-01 00:00:00

  • Adventitial fibroblast reactive oxygen species as autacrine and paracrine mediators of remodeling: bellwether for vascular disease?

    abstract::The importance of the vascular adventitia is increasingly being recognized not only in vascular disease but also in normal maintenance and homeostasis of vessels. Activation of the adventitia and its resident fibrocytic cells in response to injury, stretch, cytokines, and hormones has been shown to stimulate different...

    journal_title:Cardiovascular research

    pub_type: 杂志文章,评审

    doi:10.1016/j.cardiores.2007.06.016

    authors: Haurani MJ,Pagano PJ

    更新日期:2007-09-01 00:00:00

  • Inhibition of Notch2 by Numb/Numblike controls myocardial compaction in the heart.

    abstract:AIMS:The ventricular wall of the heart is composed of trabeculated and compact layers, which are separated by yet unknown processes during embryonic development. Here, we wanted to explore the role of Notch2 and Numb/Numblike for myocardial trabeculation and compaction. METHODS AND RESULTS:We found that Notch2 activit...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/cvs250

    authors: Yang J,Bücker S,Jungblut B,Böttger T,Cinnamon Y,Tchorz J,Müller M,Bettler B,Harvey R,Sun QY,Schneider A,Braun T

    更新日期:2012-11-01 00:00:00

  • The utilization of ultrasound and microbubbles for therapy in acute coronary syndromes.

    abstract::Ultrasound has become a useful high resolution imaging modality for examining the cardiac microcirculation. With the use of microbubbles as an ultrasound contrast agent, ultrasound can be utilized to image the microcirculation and detect capillary flow abnormalities in acute ischaemia. A wide range of ultrasound frequ...

    journal_title:Cardiovascular research

    pub_type: 杂志文章,评审

    doi:10.1093/cvr/cvp206

    authors: Porter TR

    更新日期:2009-09-01 00:00:00

  • Adenosine receptor specificity in preconditioning of isolated rabbit cardiomyocytes: evidence of A3 receptor involvement.

    abstract:OBJECTIVE:The aim was to further characterise an experimental model of preconditioning of isolated rabbit cardiomyocytes and to determine the role of adenosine receptor subtypes in initiation of the protective response. METHODS:Isolated myocytes were subjected to 5 min preincubation in the presence or absence of gluco...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/28.7.1049

    authors: Armstrong S,Ganote CE

    更新日期:1994-07-01 00:00:00

  • Do statins have an antiarrhythmic activity?

    abstract::Sudden cardiac death, which is mainly associated with the presence of life-threatening ventricular arrhythmias, is a common 'killer' among patients with coronary artery disease. Moreover, atrial fibrillation is the most common arrhythmia encountered in the clinical practice. The beneficial effect of statins on cardiov...

    journal_title:Cardiovascular research

    pub_type: 杂志文章,评审

    doi:10.1016/j.cardiores.2007.02.029

    authors: Kostapanos MS,Liberopoulos EN,Goudevenos JA,Mikhailidis DP,Elisaf MS

    更新日期:2007-07-01 00:00:00

  • CTLA4-IgG ameliorates homocysteine-accelerated atherosclerosis by inhibiting T-cell overactivation in apoE(-/-) mice.

    abstract:AIMS:Cytotoxic T lymphocyte antigen 4 (CTLA4) exerts inhibitory effects on T-cell activation by competition with CD28. In this study, we investigated the effect of CTLA4-IgG on homocysteine (Hcy)-induced T-cell activation and potential signal pathways involved in atherosclerotic formation. METHODS AND RESULTS:The CD28...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/cvs330

    authors: Ma K,Lv S,Liu B,Liu Z,Luo Y,Kong W,Xu Q,Feng J,Wang X

    更新日期:2013-02-01 00:00:00

  • The microRNA-15 family inhibits the TGFβ-pathway in the heart.

    abstract:AIMS:The overloaded heart remodels by cardiomyocyte hypertrophy and interstitial fibrosis, which contributes to the development of heart failure. Signalling via the TGFβ-pathway is crucial for this remodelling. Here we tested the hypothesis that microRNAs in the overloaded heart regulate this remodelling process via in...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/cvu184

    authors: Tijsen AJ,van der Made I,van den Hoogenhof MM,Wijnen WJ,van Deel ED,de Groot NE,Alekseev S,Fluiter K,Schroen B,Goumans MJ,van der Velden J,Duncker DJ,Pinto YM,Creemers EE

    更新日期:2014-10-01 00:00:00

  • High glucose condition increases NADPH oxidase activity in endothelial microparticles that promote vascular inflammation.

    abstract:AIMS:Diabetes is a major risk factor for cardiovascular diseases. Circulating endothelial microparticles (EMP) are increased in diabetic patients, but their potential contribution in atherogenesis is unclear. We sought to determine the role of EMP derived under high glucose conditions in the development of atherosclero...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/cvt013

    authors: Jansen F,Yang X,Franklin BS,Hoelscher M,Schmitz T,Bedorf J,Nickenig G,Werner N

    更新日期:2013-04-01 00:00:00

  • Baicalin increases VEGF expression and angiogenesis by activating the ERR{alpha}/PGC-1{alpha} pathway.

    abstract:AIMS:Baicalin is the major component found in Scutellaria baicalensis root, a widely used herb in traditional Chinese medicine. Although it has been used for thousands of years to treat stroke, the mechanisms of action of S. baicalensis have not been clearly elucidated. In this report, we studied the modulation of angi...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/cvq296

    authors: Zhang K,Lu J,Mori T,Smith-Powell L,Synold TW,Chen S,Wen W

    更新日期:2011-02-01 00:00:00

  • Tungstate activates BK channels in a β subunit- and Mg2+-dependent manner: relevance for arterial vasodilatation.

    abstract:AIMS:Tungstate reduces blood pressure in experimental animal models of both hypertension and metabolic syndrome, although the underlying mechanisms are not fully understood. Given that the large-conductance voltage- and Ca(2+)-dependent K(+) (BK) channel is a key element in the control of arterial tone, our aim was to ...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/cvs139

    authors: Fernández-Mariño AI,Porras-González C,González-Rodríguez P,Selent J,Pastor M,Ureña J,Castellano A,Valverde MA,Fernández-Fernández JM

    更新日期:2012-07-01 00:00:00

  • The renin-angiotensin system, dietary salt, and increased sensitivity to noradrenaline in mesenteric vasculature preparations from renal/salt hypertensive rats.

    abstract::Exogenous angiotensin II causes noradrenaline supersensitivity in rat mesenteric vasculature preparations. The noradrenaline supersensitivity of tissues from renal/salt hypertensive rats, with low plasma renin activity, is not caused by endogenous angiotensin II since it was unaffected by Sar1 Ileu8 angiotensin II. Di...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/10.2.232

    authors: Collis MG,Alps BJ

    更新日期:1976-03-01 00:00:00

  • Soluble Notch ligand and receptor peptides act antagonistically during angiogenesis.

    abstract:AIMS:Notch signalling is essential for blood vessel formation. During angiogenesis, the Notch ligand DLL4 on the leading tip cell activates Notch receptors on the adjacent stalk cells. DLL4-Notch signalling is impaired by the Notch ligand JAG1 in endothelial cells. The Delta/Serrate/Lag2 (DSL) domain of the Notch ligan...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/cvv151

    authors: Klose R,Berger C,Moll I,Adam MG,Schwarz F,Mohr K,Augustin HG,Fischer A

    更新日期:2015-07-01 00:00:00

  • Disrupted Slit-Robo signalling results in membranous ventricular septum defects and bicuspid aortic valves.

    abstract:AIMS:The mesenchymal cushions lining the early embryonic heart undergo complex remodelling to form the membranous ventricular septum as well as the atrioventricular and semilunar valves in later life. Disruption of this process underlies the most common congenital heart defects. Here, we identified a novel role for Sli...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/cvv040

    authors: Mommersteeg MT,Yeh ML,Parnavelas JG,Andrews WD

    更新日期:2015-04-01 00:00:00

  • Increased pulmonary prostacyclin synthesis in rats with chronic hypoxic pulmonary hypertension.

    abstract:OBJECTIVE:The regulation of pulmonary prostacyclin synthesis is not completely understood. We tested the hypothesis that prostacyclin production is predominantly stimulated by hemodynamic factors, such as increased shear-stress, and is thus increased in rats with chronic hypoxic pulmonary hypertension. METHODS:To this...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1016/s0008-6363(02)00318-8

    authors: Blumberg FC,Lorenz C,Wolf K,Sandner P,Riegger GA,Pfeifer M

    更新日期:2002-07-01 00:00:00

  • Angiotensin II, adhesion, and cardiac fibrosis.

    abstract::Angiotensin II (AII) plays a critical role in cardiac remodeling. This peptide promotes cardiac myocyte hypertrophy and cardiac fibroblast interstitial fibrotic changes associated with left ventricular hypertrophy, post myocardial infarction remodeling and congestive heart failure. AII mediates cardiac myocyte hypertr...

    journal_title:Cardiovascular research

    pub_type: 杂志文章,评审

    doi:10.1016/s0008-6363(00)00044-4

    authors: Schnee JM,Hsueh WA

    更新日期:2000-05-01 00:00:00

  • Histopathologic alterations following local delivery of dexamethasone to inhibit restenosis in murine arteries.

    abstract:OBJECTIVE:Dexamethasone-eluting stents are currently under evaluation to prevent post-angioplasty restenosis. The efficacy and safety of dexamethasone as an anti-restenotic agent is still unclear. We assess the effect of perivascular delivery of dexamethasone on vascular pathology in a mouse model of restenosis. METHO...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1016/j.cardiores.2005.06.015

    authors: Pires NM,Schepers A,van der Hoeven BL,de Vries MR,Boesten LS,Jukema JW,Quax PH

    更新日期:2005-12-01 00:00:00

  • Role of NADPH oxidase-mediated superoxide production in the regulation of E-selectin expression by endothelial cells subjected to anoxia/reoxygenation.

    abstract:OBJECTIVE:Anoxia followed by reoxygenation (A/R) increases endothelial cell superoxide (O2-) generation which is implicated in E-selectin overexpression. The mechanisms which govern these processes are not fully understood and therefore the goal of our study was to determine the functional importance of NADPH oxidase i...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1016/j.cardiores.2004.03.018

    authors: Rupin A,Paysant J,Sansilvestri-Morel P,Lembrez N,Lacoste JM,Cordi A,Verbeuren TJ

    更新日期:2004-08-01 00:00:00

  • GATA4 expression is primarily regulated via a miR-26b-dependent post-transcriptional mechanism during cardiac hypertrophy.

    abstract:AIMS:GATA4 is a transcription factor that is up-regulated during cardiac hypertrophy and plays a fundamental role in myocyte growth and survival. In this study, we investigate the transcriptional vs. post-transcriptional mechanisms that are involved in regulating GATA4 in the heart during neonatal and pressure overload...

    journal_title:Cardiovascular research

    pub_type: 杂志文章

    doi:10.1093/cvr/cvs001

    authors: Han M,Yang Z,Sayed D,He M,Gao S,Lin L,Yoon S,Abdellatif M

    更新日期:2012-03-15 00:00:00