Abstract:
:The renin-angiotensin-aldosterone (RAA) system and the endothelin (ET) system entail the most potent vasopressor mechanisms identified to date. Although they were studied in depth in relation to arterial hypertension and cardiovascular diseases, limited information on their interrelationships in causing hypertension and related target organ damage exists. The identification of consensus sequences for jun in the regulatory region of the preproendothelin-1 (ppET-1) gene raised the possibility of its transcriptional regulation by angiotensin II (Ang II). This was confirmed by the finding that stimulation with Ang II of cultured vascular smooth muscle cells (VSMCs) and endothelial cells (ECs) induced expression of the ppET-1 gene and synthesis of ET-1. Endogenously produced ET-1 was found to contribute to the hypertrophic response of cardiomyocytes to Ang II and thereby to cardiac hypertrophy. Furthermore, ET-1 exerts multifaceted effects on the RAA system, such as dose-dependent inhibition of renin synthesis, and stimulation of aldosterone secretion. The finding of abundant specific ET-1 receptors in the adrenocortical zona glomerulosa (ZG) suggested a direct secretagogue effect of ET-1. In rats, ETB receptors mediate such an effect, whilst in humans, both ETA and ETB receptor subtypes intervene in regulating the transcription of the aldosterone synthase gene. In addition, ET-1 stimulates DNA synthesis and proliferation of ZG cells via ETA receptors and, therefore, might play a role in cell turnover of the normal adrenal cortex and in the onset of adrenal tumours. Studies on the in vivo interactions between ETs and the RAA system have given conflicting results, insofar as some suggested a participation of ET-1 in the pressor and cellular effects of exogenously administered Ang II, whereas others did not in the transgenic TGR(Ren 2m)27 rats and in the two-kidney, one clip.
journal_name
Cardiovasc Resjournal_title
Cardiovascular researchauthors
Rossi GP,Sacchetto A,Cesari M,Pessina ACdoi
10.1016/s0008-6363(99)00110-8subject
Has Abstractpub_date
1999-08-01 00:00:00pages
300-7issue
2eissn
0008-6363issn
1755-3245pii
S0008-6363(99)00110-8journal_volume
43pub_type
杂志文章,评审abstract:OBJECTIVES:Coronary collateral flow often mitigates the effects of coronary artery obstruction and has a significant impact on the prognosis of patients with coronary artery disease. In the presence of variable degrees of coronary collateral flow, digital radiographic assessment of myocardial blood flow has not been qu...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(96)00218-0
更新日期:1997-02-01 00:00:00
abstract:OBJECTIVE:We investigated the influence of experimental hyperlipidemia on the formation of cardiac NO, superoxide, and peroxynitrite (ONOO(-)) in rat hearts. METHODS:Wistar rats were fed 2% cholesterol-enriched diet or normal diet for 8 weeks. Separate groups of normal and hyperlipidemic rats were injected twice intra...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(03)00330-4
更新日期:2003-06-01 00:00:00
abstract:OBJECTIVE:Earlier studies have revealed sarcolemmal (SL) defects in congestive heart failure due to myocardial infarction; however, the mechanisms of SL changes in the failing heart are poorly understood. Since congestive heart failure is associated with various metabolic abnormalities including a deficiency of carniti...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(99)00089-9
更新日期:1999-06-01 00:00:00
abstract:STUDY OBJECTIVE:The aim was to determine whether depressed myocardial contractility is responsible for the decline in stroke volume that occurs with cardiac tamponade. DESIGN:Left ventricular contractile performance was assessed before and after beta adrenergic blockade using the end systolic pressure-volume relation,...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/24.8.633
更新日期:1990-08-01 00:00:00
abstract::There is mounting interest in the use of the monophasic action potential for electrophysiological investigation of regional myocardial ischaemia. There is, however, no systematic study of the relation between the changes in monophasic action potential and regional myocardial blood flow. In this study monophasic action...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/20.10.740
更新日期:1986-10-01 00:00:00
abstract::Ventricular function curves relating stroke work and left ventricular end-diastolic pressure were generated in awake dogs during increases in preload produced by infusion of fluid and during increases in afterload produced by administration of phenylephrine. The ventricular function curves produced by preloading were ...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/13.7.392
更新日期:1979-07-01 00:00:00
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
更新日期:2015-04-01 00:00:00
abstract:AIMS:Polyunsaturated fatty n-3 acids (PUFAs) have been reported to exhibit antiarrhythmic properties. However, the mechanisms of action remain unclear. We studied the electrophysiological effects of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) on IKs, and on the expression and location of Kv7.1 and KCNE1....
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvu250
更新日期:2015-02-01 00:00:00
abstract::CaMKII is a serine-threonine protein kinase that is abundant in myocardium. Emergent evidence suggests that CaMKII may play an important role in promoting atrial fibrillation (AF) by targeting a diverse array of proteins involved in membrane excitability, cell survival, calcium homeostasis, matrix remodelling, inflamm...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1093/cvr/cvw002
更新日期:2016-04-01 00:00:00
abstract::The development of the heart is a complex process during which different cell types progressively contribute to shape a four-chambered pumping organ. Over the last decades, our understanding of the specification and transcriptional regulation of cardiac development has been greatly augmented as has our understanding o...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1093/cvr/cvr078
更新日期:2011-07-15 00:00:00
abstract:AIMS:Heart failure is associated with deficient endothelial nitric oxide (NO) production as well as increased oxidative stress and accelerated NO degradation. The aim of this study was to evaluate platelet NO biosynthesis and superoxide anion (O(2)(-)) production in patients with heart failure. METHODS AND RESULTS:In ...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvr115
更新日期:2011-09-01 00:00:00
abstract:STUDY OBJECTIVE:The aim was to investigate whether basal coronary vascular tone and myocardial perfusion depend upon endothelial nitric oxide (NO) synthesis. DESIGN:Myocardial blood flow and vascular resistance of the left and right ventricles were studied before and after intravenous infusions of either NG-nitro-L-ar...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/25.8.700
更新日期:1991-08-01 00:00:00
abstract:AIMS:This study examines the effect of endogenous male sex hormones on thromboxane A2 (TXA2), prostaglandin (PG) I2, PGF(2 alpha), and PGE I2 release, as well as their role in acetylcholine (ACh)-mediated relaxation in the aorta. METHODS AND RESULTS:Aortic segments from orchidectomized and control male Sprague-Dawley ...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvm059
更新日期:2008-02-01 00:00:00
abstract::The isolated perfused heart has been used increasingly during the last decade as a model for identifying actions of drugs on ventricular fibrillation (VF) induced by myocardial ischaemia. In addition, it has been used to explore the mechanisms responsible for the initiation and maintenance of VF, the concept of endoge...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1016/s0008-6363(98)00083-2
更新日期:1998-07-01 00:00:00
abstract:STUDY OBJECTIVE:The aim was to investigate the arrhythmogenic properties of several sympathomimetic amines and their antagonism by adrenergic blocking drugs. DESIGN:Arrhythmia was induced by the investigated drugs, injected intravenously: adrenaline (ADR); noradrenaline (NA); phenylephrine (PE); isoprenaline (IP); ter...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/24.9.754
更新日期:1990-09-01 00:00:00
abstract::The role of the mitochondrial ATP-sensitive potassium channel (mK(ATP)) in ischemic preconditioning and cardioprotection is reviewed. A great deal of accumulated evidence implicatese opening of this channel as an important step in the anti-infarct effect of ischemic preconditioning. Recent studies, however, reveal tha...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1016/s0008-6363(02)00439-x
更新日期:2002-08-15 00:00:00
abstract:AIMS:Sphingosine-1-phosphate (S1P), a key regulator of vascular homeostasis and angiogenesis, promotes endothelial cell migration via stimulation of phosphoinositide 3-kinase (PI3K). The aim of this study was to identify the role of PI3Kbeta and gamma isoforms and their downstream effector pathways in mediating endothe...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvn159
更新日期:2008-10-01 00:00:00
abstract:OBJECTIVE:The aim was to study the contractility of the conduit coronary artery to vasoactive agents in developing and established volume overload cardiac hypertrophy and to compare it with structural alterations in the artery. METHODS:Aortic valve insufficiency in rabbits was used to produce a volume overloaded heart...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/27.11.2005
更新日期:1993-11-01 00:00:00
abstract:OBJECTIVE:Temporal effects of prolonged hypoxaemia and reoxygenation, on the systemic pulmonary and mesenteric circulations in newborn piglets, were investigated. METHODS:Two groups [control (n = 5), hypoxaemic (n = 7)] of 1-3 day old anaesthetised piglets were instrumented with ultrasound flow probes placed to measur...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(98)00080-7
更新日期:1998-08-01 00:00:00
abstract:AIMS:Atrial fibrillation (AF) is the most common cardiac arrhythmia, and early-onset lone AF has been linked to mutations in genes encoding ion channels. Mutations in the pore forming subunit KV4.3 leading to an increase in the transient outward potassium current (Ito) have previously been associated with the Brugada S...
journal_title:Cardiovascular research
pub_type: 杂志文章,多中心研究
doi:10.1093/cvr/cvt028
更新日期:2013-06-01 00:00:00
abstract::Hyponatremia is a frequent electrolyte disorder. It is often found in congestive cardiac failure, liver cirrhosis, plasma volume contraction and in SiADH. In these disorders hyponatremia is caused by nonosmotic vasopressin and sustained fluid intake. This provides a rationale for V2 vasopressin receptor antagonists in...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1016/s0008-6363(01)00288-7
更新日期:2001-08-15 00:00:00
abstract::Injudicious selection of a saphenous vein graft can adversely affect the the late postoperative patency of the proximal coronary artery which it bypasses. The purpose of this investigation was to deduce an upper bound for graft diameter, at small angle of distal anastomosis, below which the stenosed artery will remain...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/13.7.370
更新日期:1979-07-01 00:00:00
abstract:OBJECTIVE:At present little is known about the factors that regulate the expression of the endothelins and their receptors in cardiac tissue in vivo. The aim of this study was to investigate changes in expression of the endothelins (ET-1, ET-2, and ET-3) and their receptors (ETAR and ETBR) in the hypertrophied heart of...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:
更新日期:1995-06-01 00:00:00
abstract:OBJECTIVE:Air bubbles entering the coronary artery may have harmful effects on cardiac function. From the physical point of view it is the relatively high surface tension of the blood-air interface which causes bubbles to trap in small vessels. The aim of the present study was to reduce depression of myocardial functio...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(97)00063-1
更新日期:1997-06-01 00:00:00
abstract:AIMS:Both mitochondria and nitric oxide (NO*) contribute to cardioprotection by ischaemic preconditioning (IPC). IPC causes mild uncoupling of mitochondria via uncoupling proteins (UCPs) and the adenine nucleotide translocase (ANT), and mild uncoupling per se is cardioprotective. Although electrophilic lipids are known...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvn323
更新日期:2009-05-01 00:00:00
abstract::Since data on velocity fields in the ascending aorta downstream of normal aortic valves in pigs have not yet been obtained velocity profiles were visualised using a hot film anemometer needle probe before and after total cardiopulmonary bypass and cold cardioplegic arrest. Furthermore, measurements were made during in...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/22.7.464
更新日期:1988-07-01 00:00:00
abstract::Cardiomyocyte death secondary to transient ischaemia occurs mainly during the first minutes of reperfusion in the form of contraction band necrosis. Research on the mechanisms leading to sarcolemmal rupture and necrosis during initial reperfusion identified several promising pharmacological targets directed either to ...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1093/cvr/cvp109
更新日期:2009-07-15 00:00:00
abstract:AIMS:KCNQ1 (alias KvLQT1 or Kv7.1) and KCNE1 (alias IsK or minK) co-assemble to form the voltage-activated K(+) channel responsible for I(Ks)-a major repolarizing current in the human heart-and their dysfunction promotes cardiac arrhythmias. The channel is a component of larger macromolecular complexes containing known...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvn085
更新日期:2008-08-01 00:00:00
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
更新日期:1976-03-01 00:00:00
abstract::Arteriogenesis, the process of collateral artery growth as an adaptation to major arterial occlusion, can be life- and tissue saving and may alter the natural course of the consequences and organ manifestations of arterial disease. This is achieved by an active growth process that is coupled to complete arterial remod...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1016/s0008-6363(99)00191-1
更新日期:1999-09-01 00:00:00