Abstract：
:Endothelin-1 reduces the chronotropic and inotropic effects of the beta-adrenoceptor agonist isoproterenol in rabbit isolated atria. Vascular interactions between endothelin-1 and isoproterenol have not been reported. Rings of the rabbit aorta without endothelium were mounted on myographs to measure isometric tension. Vessels were precontracted to similar levels with phenylephrine (30 micromol/L) or endothelin-1 (30 nmol/L). Relaxation to isoproterenol and forskolin were obtained. Vascular sensitivity (pD2) to isoproterenol was not different in the presence of endothelin-1 (7.6 +/- 0.3; n = 13) and phenylephrine (7.5 +/- 0.3; n = 11). The maximal relaxation (Emax) however, was doubled (P < 0.05) by endothelin-1 (42 +/- 5%), as compared with phenylephrine (23 +/- 4%). In the presence of endothelin-1, chelerythrine (protein kinase C inhibitor; 10 micromol/L) increased (P < 0.05) vascular sensitivity to isoproterenol (8.6 +/- 0.4, n = 7), but had no influence on the Emax. In contrast, in the presence of phenylephrine, pD2 was unaffected by chelerythrine, whereas the Emax to isoproterenol was increased (P < 0.05; 50 +/- 4%, n = 8). Vascular sensitivity and Emax to forskolin were similar in the presence of endothelin-1 and phenylephrine. In conclusion, endothelin-1 reduces vascular sensitivity to isoproterenol in a PKC-dependent pathway. The permissive effect of endothelin-1 appears to directly target the beta-adrenoceptor/G protein complex upstream of adenylate cyclase.
journal_name
J Cardiovasc Pharmacoljournal_title
Journal of cardiovascular pharmacologyauthors
Gilbert P,Thorin Edoi
10.1097/00005344-200310000-00012subject
Has Abstractpub_date
2003-10-01 00:00:00pages
534-8issue
4eissn
0160-2446issn
1533-4023journal_volume
42pub_type
杂志文章abstract：OBJECTIVE:We investigate the impact of different regimens of parenteral hydrogen sulfide (H2S) administration on myocardium during ischemia-reperfusion (IR) and the molecular pathways involved in its cytoprotective effects. METHODS:Eighteen male Yorkshire pigs underwent 60 minutes of mid-left anterior descending coron...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/FJC.0b013e3181b2b72b
更新日期：2009-10-01 00:00:00
abstract：:Regeneration of the heart after a stroke would be the best biologic response to restore its function. However, although this phenomenon occurs in primitive organisms, the regenerative potential is lost in mammals. Thus, the search for an appropriate cardiac progenitor with the potential to differentiate into a functio...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章,评审
doi：10.1097/FJC.0b013e3181d8bc6d
更新日期：2010-07-01 00:00:00
abstract：:At present, endothelin (ET) receptor classification remains controversial. We investigated the presence of atypical ETA receptors in human saphenous veins (SV). Human SV was obtained from 24 patients undergoing coronary artery bypass grafting. Vessels were set up in organ baths, stretched to a tension of 6 g, and left...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199800001-00049
更新日期：1998-01-01 00:00:00
abstract：:Endothelin-1 (ET-1) is an endothelium-derived peptide with powerful vasoconstrictor and mitogenic properties. A pathophysiologic role for ET-1 has been suggested, because increased plasma and tissue levels of this peptide have been described in a number of disease states, including atherosclerosis. Immunocytochemistry...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：
更新日期：1995-01-01 00:00:00
abstract：:A sodium/calcium exchange mechanism that mediates both Ca2+ exit and Ca2+ entry is present in the sarcolemma of most types of muscle including mammalian cardiac muscle and vascular smooth muscle (VSM). The rate and direction of Ca2+ transport mediated by the exchanger are normally regulated primarily by: (a) the intra...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章,评审
doi：
更新日期：1988-01-01 00:00:00
abstract：:Patients with untreated hypertension have been shown to be resistant to insulin-stimulated glucose uptake. They are also hyperinsulinemic and hypertriglyceridemic when compared with matched control groups with normal blood pressure. In addition, insulin resistance, hyperinsulinemia, and hypertriglyceridemia have been ...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章,评审
doi：
更新日期：1990-01-01 00:00:00
abstract：:Anakinra is a recombinant human interleukin 1 receptor antagonist that competes and blocks the biologic effects of interleukin 1, reducing systemic inflammatory responses. In the 2015 guidelines for the diagnosis and management of pericardial diseases of the European Society of Cardiology, anakinra was established as ...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章,评审
doi：10.1097/FJC.0000000000000839
更新日期：2020-07-01 00:00:00
abstract：:The pharmacologic properties of a novel nonpeptide endothelin (ET) receptor antagonist, S-1255 ([R]-[+]-2-[benzo(1,3)dioxol-5-yl]-6-isopropyl-4-[4-methoxyphenyl]-2H-chromene-3-carboxylic acid), was studied. [3H]S-1255 specifically bound to porcine aortic smooth muscle membranes expressing only ET(A) receptors with a K...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-200104000-00014
更新日期：2001-04-01 00:00:00
abstract：:The superoxide radical scavenging effects of the SH group in the captopril molecule has been proposed to be the basis of the "cadioprotective" effect of this angiotensin converting enzyme (ACE) inhibitor in animal models of myocardial injury. We determined the effects of captopril, another ACE inhibitor with an SH gro...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199011000-00023
更新日期：1990-11-01 00:00:00
abstract：:The aim of this study was to investigate the effect of hypercholesterolemia on the angiotensin II-induced contractions in the isolated aorta and iliac artery of the rabbit, with respect to the role of arachidonate metabolites. Furthermore, the effect of the angiotensin-converting enzyme inhibitor ramipril was studied ...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199707000-00017
更新日期：1997-07-01 00:00:00
abstract：:We examined the effects of tiapamil, a Ca2+ antagonist, on infarct size, lymphatic enzyme release, and arrhythmias in reperfused, ischemic canine hearts. Three-hour reperfusion of the left anterior descending coronary artery, which had been ligated for 3 h, significantly increased cardiac lymphatic release of lactate ...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-198601000-00015
更新日期：1986-01-01 00:00:00
abstract：:Diabetes and CYP2C19 loss of function (LOF) alleles are associated with the variable antiplatelet activity of the prodrug clopidogrel. We conducted a randomized trial (NCT03613857) to compare the combined and individualized effects of diabetes and CYP2C19 polymorphisms on the antiplatelet reactivity of clopidogrel ver...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/FJC.0000000000000881
更新日期：2020-10-01 00:00:00
abstract：:Compound LY249933 and its component diastereomers, (RR) and (SR), were studied for their vascular and cardiac effects in vitro and in vivo. In guinea pig cardiac ventricular membranes, LY249933, (RR), and (SR) potently displaced bound [3H]nitrendipine (Kd values = 2-6 nM). In isolated guinea pig right ventricular stri...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：
更新日期：1989-09-01 00:00:00
abstract：:Cilazapril (CLZ) is a new, long-acting nonsulfhydril converting enzyme inhibitor (ACE-I). Its effect on peak and trough sitting diastolic blood pressure (SDBP) was studied in a total of 85 patients with uncomplicated, essential hypertension at three centers. After 4 weeks of a single-blind placebo (PLA) run-in period,...
journal_title：Journal of cardiovascular pharmacology
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：10.1097/00005344-199101000-00002
更新日期：1991-01-01 00:00:00
abstract：:We compared platelet function results obtained with the VerifyNow P2Y12 (VN-P2Y12) point-of-care device and the light transmission aggregometry (5 and 20 microM adenosine diphosphate) method using an integrated database of eight clinical trials with a total of 591 subjects. The study was performed in healthy subjects,...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/FJC.0b013e3181dd0ec2
更新日期：2010-07-01 00:00:00
abstract：:It has previously been shown that endothelin (ET)-receptor antagonists protect the myocardium from ischemia and reperfusion (I/R) injury. The mechanism behind this effect is unclear. The aim of this study was to elucidate the possible interaction between ET(A)-receptor antagonism and nitric oxide (NO) during I/R. Anes...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-200009000-00018
更新日期：2000-09-01 00:00:00
abstract：:Spontaneously hypertensive stroke-prone rats suffer spontaneous strokes partly as a result of abnormal cerebrovascular development. This model exhibits prehypertensive, typical hypertensive and malignant hypertensive stages. We had observed that vascular endothelial growth factor and its receptors, kinase domain regio...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/01.fjc.0000166264.27476.60
更新日期：2004-11-01 00:00:00
abstract：:The goal of this study was to determine the effects of trimetazidine on all-cause mortality and heart failure hospitalizations in patients with ischemic cardiomyopathy. We performed an extension to 48 months and a post-hoc analysis of the Villa Pini d'Abruzzo trimetazidine trial; in this single-center, open-label, ran...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章,随机对照试验
doi：10.1097/FJC.0b013e31814fa9cb
更新日期：2007-11-01 00:00:00
abstract：:NSP-513, a novel potent and selective phosphodiesterase 3 (PDE 3) inhibitor, and cilostazol, a previously developed PDE 3 inhibitor, were compared with respect to antiplatelet, antithrombotic, and hemodynamic effects. In the in vitro antiplatelet aggregation studies, NSP-513 and cilostazol inhibited collagen-induced c...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-200004000-00012
更新日期：2000-04-01 00:00:00
abstract：:Late sodium channel current (late INa) is considered to be an antiarrhythmic target. The prime antiarrhythmic mechanisms of late INa inhibition have been suggested to be (1) suppression of intracellular calcium [Cai]-mediated rhythmic activity (through reduction in Cai secondary to the decrease in intracellular sodium...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章,评审
doi：10.1097/FJC.0000000000000510
更新日期：2017-09-01 00:00:00
abstract：:Since beta-adrenoceptor blocking drugs were originally discovered and shown to be important therapeutic agents in the management of both angina pectoris and hypertension, many other similar drugs have become available. These share the common property of beta-adrenoceptor antagonism, though they may vary in terms of po...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章,评审
doi：10.1097/00005344-198608006-00002
更新日期：1986-01-01 00:00:00
abstract：:Peroxisome proliferator-activated receptors (PPAR) play a critical physiological role in energy homeostasis, in inflammation, and a protective role in cardiovascular function. We assessed the antioxidant effect of clofibrate-induced Peroxisome proliferator-activated receptor alpha (PPARα) stimulation on ischemic myoca...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/FJC.0b013e31826216ed
更新日期：2012-10-01 00:00:00
abstract：:The acute hemodynamic, hormonal, and pharmacokinetic responses to the oral angiotensin-converting enzyme (ACE) inhibitor spirapril were studied in 15 patients with moderate to severe congestive heart failure in a baseline controlled dose-ranging study. Doses of 0.3, 1.0, 1.5, 3.125, and 6.25 mg were investigated for 2...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199110000-00019
更新日期：1991-10-01 00:00:00
abstract：:The electrophysiologic effects of acutely and chronically administered amiodarone on canine Purkinje fibers were assessed using microelectrode techniques to record intracellular action potentials. Chronically treated dogs received amiodarone for 3 weeks (serum levels, 0.91 +/- 0.09 microgram/ml or 1.42 X 10(-6) M). Ac...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：
更新日期：1989-05-01 00:00:00
abstract：:The effects of the adrenergic antihypertensive drugs propranolol, clonidine, alpha-methyldopa, urapidil, indoramin, and prazosin on the relative rate of sterol synthesis were studied in freshly isolated human mononuclear leukocytes. Incubation of cells for 6 h in a medium containing lipid-depleted serum led to a three...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-198511000-00019
更新日期：1985-11-01 00:00:00
abstract：:Platelet aggregation induced by serotonin in plasma obtained from 9 volunteers was inhibited at 90 min and 15 h after the oral administration of ketanserin, either acutely or after one week of chronic administration. At 7 days after the last dose, a transient overreaction to serotonin occurred. Platelet reactions to e...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-198500077-00007
更新日期：1985-01-01 00:00:00
abstract：:The purpose of the present study was to assess the effects of chronic treatment with an orally active chymase inhibitor, 4-[1-(naphthylmethyl)benzimidazol-2-ylthio]butanoic acid (TEI-E548), in a hamster myocardial infarction model. In the first experiment, after confirming the biochemical inhibitory action of TEI-E548...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：
更新日期：2003-01-01 00:00:00
abstract：:The efficacy and safety of carvedilol, a beta-blocker with vasodilatory properties, were compared with that of hydrochlorothiazide (HCTZ) both at a once-daily dose of 25-50 mg in a double-blind, randomized, parallel-group, multicenter study. Following a single-blind placebo phase of 3-6 weeks, 201 eligible patients (a...
journal_title：Journal of cardiovascular pharmacology
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：
更新日期：1991-01-01 00:00:00
abstract：:The function of presynaptic angiotensin II receptors at postganglionic sympathetic terminal axons under conditions of uninterrupted sympathetic impulse traffic was studied in anesthetized rabbits (alfadolone + alfaxalone). Mean arterial pressure, postganglionic renal sympathetic firing rate, the arterial plasma noradr...
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199006000-00015
更新日期：1990-06-01 00:00:00
abstract：:To explore endothelium-dependent relaxation and the L-arginine (L-ARG)-nitric oxide (NO) pathway during chronic hypoxia, we examined isolated rings from large conduit pulmonary arteries and aorta from rats exposed to either room air (N), 3-week hypoxia (H), or 3-week H followed by 72-h recovery to normoxia (room air)....
journal_title：Journal of cardiovascular pharmacology
pub_type： 杂志文章
doi：10.1097/00005344-199312000-00018
更新日期：1993-12-01 00:00:00
