Abstract:
OBJECTIVE:Previous investigations have shown the effectiveness of sustained intra- or extravascular administration of vascular endothelial growth factor (VEGF) in chronic myocardial ischemia in improvement of left ventricular function. The present investigations were undertaken in order to evaluate efficacy of a single bolus or local intracoronary delivery. METHODS:Yorkshire pigs underwent placement of a left circumflex artery ameroid occluder. Three weeks later the animals were randomized to treatment with VEGF (20 micrograms) accomplished by local intracoronary delivery system (InfusaSleeve, n = 10), intracoronary bolus infusion (n = 7) or by epicardial implantation of an osmotic delivery system (n = 7). An additional group of animals received intracoronary administration of saline and served as a control (n = 9). Three weeks after initiation of therapy, the animals were evaluated with regard to myocardial perfusion and global as well as regional ventricular function. RESULTS:All three VEGF treatment groups but not the control animals demonstrated a significant increase in the left-to-left (but not right-to-left) collateral index, myocardial blood flow (pre-therapy LCX vs. LAD (average of all groups): 0.76 +/- 0.35 vs. 0.96 +/- 0.38 ml*min-1*g-1, p = 0.03; post-therapy: LCX vs. LAD: 1.16 +/- 0.39 vs. 1.15 +/- 0.28 ml*min-1*g-1, p = NS) and coronary vasodilatory reserve 3 weeks after growth factor administration. The observed increase in VEGF-induced perfusion correlated with improvement in regional ventricular function in all VEGF-treated groups (pre-therapy vs. post-therapy: i.c. VEGF 20 +/- 5.1 vs. 33 +/- 4.8; local VEGF 16 +/- 2.8 vs. 33.6; pump VEGF 17 +/- 3.8 vs. 34 +/- 4.9 p < 0.05 for all) but not control animals (21 +/- 3.3 vs. 27 +/- 5.8, p = NS). CONCLUSION:Single intracoronary delivery (intravascular bolus or local delivery) of VEGF is effective in stimulating physiologically significant angiogenesis in porcine model of chronic myocardial ischemia.
journal_name
Cardiovasc Resjournal_title
Cardiovascular researchauthors
Lopez JJ,Laham RJ,Stamler A,Pearlman JD,Bunting S,Kaplan A,Carrozza JP,Sellke FW,Simons Mdoi
10.1016/s0008-6363(98)00136-9subject
Has Abstractpub_date
1998-11-01 00:00:00pages
272-81issue
2eissn
0008-6363issn
1755-3245pii
S0008636398001369journal_volume
40pub_type
杂志文章abstract::A recently developed highly sensitive radioimmunoassay method for detecting plasma kinin was used to re-evaluate the results of previous studies, in which plasma kinin had been measured with a bioassay method. To clarify the mechanism of plasma kinin release in global myocardial ischaemia the left main coronary artery...
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更新日期:1987-06-01 00:00:00
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abstract::Postextrasystolic potentiation was studied by means of a catheter-tip manometer in patients with and without cardiomyopathy. The results imply that the enhancement of the left ventricular contraction is increased in patients with cardiomyopathy. ...
journal_title:Cardiovascular research
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doi:10.1093/cvr/9.3.336
更新日期:1975-05-01 00:00:00
abstract::The heart contains not only cardiomyocytes but also other cell types such as endothelial cells and fibroblasts. Functional crosstalk among these cell types is important for normal cardiac function and is also involved in disease pathophysiology. Recent data indicate that redox signalling within and between endothelial...
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pub_type: 杂志文章,评审
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更新日期:2014-05-01 00:00:00
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journal_title:Cardiovascular research
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doi:10.1093/cvr/cvy167
更新日期:2018-11-01 00:00:00
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journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/j.cardiores.2005.06.015
更新日期:2005-12-01 00:00:00
abstract::Estimation of infarct size from enzyme activities in plasma or serum presupposes known values of circulatory parameters such as the extravascular distribution volume Ve and the permeability constant P for the transport of enzyme between intravascular volume Vi and Ve. In man, parameter values are used that are extrapo...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/13.10.578
更新日期:1979-10-01 00:00:00
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journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(98)00180-1
更新日期:1998-11-01 00:00:00
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journal_title:Cardiovascular research
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更新日期:2021-01-23 00:00:00
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journal_title:Cardiovascular research
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journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/9.1.47
更新日期:1975-01-01 00:00:00
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更新日期:2013-08-01 00:00:00
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doi:10.1093/cvr/26.3.250
更新日期:1992-03-01 00:00:00
abstract::STUDY OBJECTIVE - The aim of the study was to determine the changes in the beta adrenergic system induced by cardiac hypertrophy due to valvular aortic stenosis. DESIGN - Density of beta adrenoceptors, cardiac tissue noradrenalime concentrations, coronary blood flow (using radioactive microspheres), and haemodynamic v...
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doi:10.1093/cvr/24.1.65
更新日期:1990-01-01 00:00:00
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journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1016/S0008-6363(03)00533-9
更新日期:2004-02-15 00:00:00
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doi:10.1093/cvr/cvz267
更新日期:2020-07-01 00:00:00
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doi:10.1016/s0008-6363(02)00729-0
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journal_title:Cardiovascular research
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doi:10.1093/cvr/18.9.528
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journal_title:Cardiovascular research
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doi:10.1093/cvr/24.9.741
更新日期:1990-09-01 00:00:00
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更新日期:1976-09-01 00:00:00
abstract::Intracellular acidosis exerts substantial effects on the contractile performance of the heart. Soon after the onset of acidosis, contractility diminishes, largely due to a decrease in myofilament Ca(2+) responsiveness. This decrease in contractility is followed by a progressive recovery that occurs despite the persist...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
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更新日期:2007-03-01 00:00:00
abstract:AIMS:Bone marrow (BM) progenitor cells may contribute to vascular remodelling. The present study aimed to investigate the contribution of BM-derived CXCR4(+) (a CXC chemokine receptor) and PDGFRbeta(+) (platelet-derived growth factor receptor beta) progenitor cells in hypoxia-induced muscularization of alveolar arterio...
journal_title:Cardiovascular research
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doi:10.1093/cvr/cvq147
更新日期:2010-09-01 00:00:00
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journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1093/cvr/cvs345
更新日期:2013-03-01 00:00:00
abstract::The function of the right ventricle (RV) determines the prognosis of patients with pulmonary hypertension. While much progress has been made in the treatment of pulmonary hypertension, therapies for the RV are less well established. In this review of treatment strategies for the RV, first we focus on ways to reduce wa...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
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更新日期:2017-10-01 00:00:00
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journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/j.cardiores.2006.11.010
更新日期:2007-02-01 00:00:00
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journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(03)00334-1
更新日期:2003-07-01 00:00:00
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journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvs262
更新日期:2012-12-01 00:00:00
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journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvn007
更新日期:2008-04-01 00:00:00