Ca2+ and contractile responses of resistance vessels of WKY rats and SHR to endothelin-1.

Abstract:

:Endothelin-1 (ET-1) influences vascular function by modulating intracellular free Ca2+ concentration ([Ca2+]i) in smooth muscle. This study investigated the effects of ET-1 on [Ca2+]i and contractile responses in resistance vessels of young prehypertensive (5 week) and adult hypertensive (17 week) spontaneously hypertensive rats (SHRs) and in age-matched normotensive Wistar-Kyoto (WKY) rats. Third-order branches of mesenteric arteries were mounted in a perfusion myograph and maintained at 60 mm Hg. Vessel [Ca2+]i was measured by Fura-2 and contraction was determined using video imaging to record lumen diameter. [Ca2+]i was higher (p < 0.01) in 5- and 17-week SHRs compared with 5- and 17-week WKYs rats. ET-1 increased [Ca2+]i and contractile responses in a dose-dependent manner in all groups. ET-induced [Ca2+]i change and vessel contractility were not significantly different between age-matched SHR and WKY groups, but [Ca2+]i responses were more sensitive in 5- compared with 17-week SHRs. These data demonstrate that ET-1-stimulated [Ca2+]i and contractile responses in resistance arteries are similar in age-matched WKY rats and SHRs and are blunted in adult SHRs compared with young prehypertensive rats. Therefore, ET-1 may not play a major role in the development of hypertension in SHRs.

journal_name

J Cardiovasc Pharmacol

authors

Touyz RM,Deng LY,Schiffrin EL

subject

Has Abstract

pub_date

1995-01-01 00:00:00

pages

S193-6

eissn

0160-2446

issn

1533-4023

journal_volume

26 Suppl 3

pub_type

杂志文章
  • Candesartan and arterial baroreflex sensitivity and sympathetic nerve activity in patients with mild heart failure.

    abstract::The purpose of this study was to investigate the effects of candesartan on arterial baroreflex sensitivity (BRS) and sympathetic activity in patients with mild heart failure (HF). Arterial pressure, heart rate, plasma renin activity, plasma angiotensin II and noradrenaline, and muscle sympathetic nerve activity (MSNA)...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 临床试验,杂志文章

    doi:10.1097/00005344-200212000-00008

    authors: Hikosaka M,Yuasa F,Yuyama R,Mimura J,Kawamura A,Motohiro M,Iwasaki M,Sugiura T,Iwasaka T

    更新日期:2002-12-01 00:00:00

  • Pharmacologic inhibition of myeloid differentiation factor 88 (MyD88) prevents left ventricular dilation and hypertrophy after experimental acute myocardial infarction in the mouse.

    abstract:BACKGROUND:Myeloid differentiation factor 88 (MyD88) is an endogenous adaptor protein that coordinates the inflammatory response to agonists of the Toll-like receptor and interleukin-1 receptor families. This particular response is activated following myocardial ischemia and infarction and may represent a viable target...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/FJC.0b013e3181d3da24

    authors: Van Tassell BW,Seropian IM,Toldo S,Salloum FN,Smithson L,Varma A,Hoke NN,Gelwix C,Chau V,Abbate A

    更新日期:2010-04-01 00:00:00

  • Alpha1-adrenoceptor antagonist effect of (+/-)-dobutamine in rat isolated gastric artery preparation.

    abstract::(+/-)-Dobutamine at concentrations < or =10(-5) M did not evoke contractions of rat gastric artery segments. However, when the tissues were contracted with methoxamine, (+/-)-dobutamine evoked concentration-dependent relaxation. The relaxant responses were not significantly affected by propranolol. In the same prepara...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-199911000-00015

    authors: Oriowo MA

    更新日期:1999-11-01 00:00:00

  • Contribution of spinal dopamine receptors to the hypotensive action of bromocriptine in rats.

    abstract::Bromocriptine, a dopamine (DA) receptor agonist, has been reported to have hypotensive effects in anesthetized and conscious normotensive rats but its mechanism of action is still not fully understood. Therefore, we studied the changes in mean arterial blood pressure (MAP) and heart rate (HR) elicited by an intravenou...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-199109000-00003

    authors: Lahlou S,Demenge P

    更新日期:1991-09-01 00:00:00

  • Systolic hypertension in the elderly: long-term lacidipine treatment. Objective, protocol, and organization. SHELL Study Group.

    abstract::Isolated systolic hypertension (ISH) is a definite risk factor for cardiovascular complications (i.e., cardiac failure, coronary artery disease, and stroke) independent of diastolic elevation. The prevalence of ISH is estimated to be approximately 15-20% in the population above the age of 60 years, and increases with ...

    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:

    authors: Malacco E,Gnemmi AE,Romagnoli A,Coppini A

    更新日期:1994-01-01 00:00:00

  • Efficacy of carvedilol in exercise-induced myocardial ischemia.

    abstract::The exercise response to a single oral dose (25 mg) of a new beta-blocking agent that also has potent vasodilating properties, carvedilol, was assessed in 15 patients with stable exertional angina, positive exercise tests (greater than or equal to 1 mm ST depression) and coronary artery disease. A placebo-controlled, ...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:

    authors: Kaski JC,Rodriguez-Plaza L,Brown J,Maseri A

    更新日期:1987-01-01 00:00:00

  • A double-blind comparison of amlodipine and placebo added to open enalapril in patients with moderate to severe essential hypertension.

    abstract::The antihypertensive efficacy and tolerability of amlodipine in combination with enalapril were assessed in this two-center study. Patients with moderate to severe hypertension and with diastolic blood pressure > 95 mm Hg after 4 weeks of treatment with open-label enalapril 5-10 mg daily were randomized to receive aml...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章,多中心研究,随机对照试验

    doi:10.1097/00005344-199117001-00006

    authors: Davies J,Jensen H,Garsdal P

    更新日期:1991-01-01 00:00:00

  • S-equol Partially Restored Endothelial Nitric Oxide Production in Isoflavone-deficient Ovariectomized Rats.

    abstract:BACKGROUND:S-equol is known as an estrogenic substance, but its ability to restore vascular endothelial function is unknown. The aim of this study was to investigate the impact of S-equol on endothelial function and intimal thickening under isoflavone- and estrogen-deficient circumstances. METHODS:Twelve-week-old fema...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/FJC.0000000000000220

    authors: Ohkura Y,Obayashi S,Yamada K,Yamada M,Kubota T

    更新日期:2015-05-01 00:00:00

  • Extracellular Ca2+ influx and endothelin-1-induced intracellular mitogenic cascades in rabbit internal carotid artery vascular smooth muscle cells.

    abstract::Endothelin-1 (ET-1) has been proven to activate two types of Ca2+-permeable nonselective cation channels (designated NSCC-1 and NSCC-2) and a store-operated Ca2+ channel (SOCC) in rabbit internal carotid artery vascular smooth muscle cells (ICA VSMCs). Ca2+ influx through these channels plays an essential role for ET-...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-200208000-00016

    authors: Kawanabe Y,Hashimoto N,Masaki T

    更新日期:2002-08-01 00:00:00

  • Pharmacologic and pharmacokinetic rationale for combination therapy in pulmonary arterial hypertension.

    abstract::Pulmonary arterial hypertension (PAH) is a progressive disease of the pulmonary vasculature characterized by elevated pulmonary artery pressure. Currently, there is no cure for this disease, and treatment is palliative. PAH therapies target 3 main pathways: prostacyclin, endothelin, and nitric oxide. The 3 distinct th...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章,评审

    doi:10.1097/FJC.0b013e3181f89bdb

    authors: Gokhman R,Smithburger PL,Kane-Gill SL,Seybert AL

    更新日期:2010-12-01 00:00:00

  • Blood pressure effects of intravenous apomorphine in conscious deoxycorticosterone-acetate salt-hypertensive rats.

    abstract:SUMMARY:The present study reports the effects of apomorphine (APO) on blood pressure and the principal site of action of this agonist in 4-week deoxycorticosterone-acetate (DOCA)-hypertensive conscious rats. In these preprations, intravenous (i.v.) administration of APO (0.50-1 mg/kg) induced short-lasting and dose-dep...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-200312000-00012

    authors: Toscano CF,Lahlou S

    更新日期:2003-12-01 00:00:00

  • Effect of isradipine on responses to standardized physical stress tests in hypertension of pregnancy.

    abstract::Fourteen women with hypertension of pregnancy and who were in their last trimester were subjected to three standardized physical stress tests before and after 1-2 weeks of treatment with 5 mg of isradipine twice daily. Their blood pressure and heart rate responses to the isometric handgrip exercise, the cold pressor t...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 临床试验,杂志文章

    doi:

    authors: Lunell NO,Grunewald C,Nisell H

    更新日期:1992-01-01 00:00:00

  • Endocrine and vascular responses in hypertensive patients to long-term treatment with diltiazem.

    abstract::Forty patients (aged 28-66 years) with essential hypertension were randomized to 14 weeks of treatment with diltiazem or hydrochlorothiazide (HCTZ) in a double-blind, parallel study design. A significant reduction in supine body weight (-6.0 +/- 1.5 lb; p less than 0.001) and increase in pulse (+6 +/- 2 beats/min; p l...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/00005344-198704000-00002

    authors: Swartz SL

    更新日期:1987-04-01 00:00:00

  • The effects of nisoldipine, diltiazem, nifedipine, and verapamil on hemodynamic parameters and red blood cells-platelet interactions in patients with arterial hypertension.

    abstract::In 80 patients with moderate hypertension the effects of nisoldipine 10 mg b.i.d., nifedipine 10 mg and 20 mg t.i.d., diltiazem 60 mg and 120 mg t.i.d., and verapamil 40 mg q.i.d. (all after single dose and 14 days' treatment) on blood pressure; hemodynamic parameters (cardiac output, stroke volume, left ventricular e...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 临床试验,杂志文章

    doi:

    authors: Belousov Y,Kushnaryov V

    更新日期:1991-01-01 00:00:00

  • Effects of perindopril on tissue angiotensin-converting enzyme activity demonstrated by quantitative in vitro autoradiography.

    abstract::Inhibition of plasma angiotensin II generation does not fully explain the chronic hypotensive effects of angiotensin-converting enzyme (ACE) inhibitors. Therefore, the pattern of tissue ACE inhibition in rats was studied after oral administration of perindopril, a new ACE inhibitor. Tissue ACE was measured by quantita...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-198812000-00013

    authors: Sakaguchi K,Jackson B,Chai SY,Mendelsohn FA,Johnson CI

    更新日期:1988-12-01 00:00:00

  • Effect of morning and bedtime dosing with cilnidipine on blood pressure, heart rate, and sympathetic nervous activity in essential hypertensive patients.

    abstract::Cilnidipine has a blocking action against N-type calcium channels as well as L-type calcium channels. We studied the effect of morning and bedtime dosing on circadian variation of blood pressure (BP), heart rate (HR), and activity of the autonomic nervous system, using an open randomized crossover study in 13 essentia...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/00005344-200401000-00011

    authors: Kitahara Y,Saito F,Akao M,Fujita H,Takahashi A,Taguchi H,Hino T,Otsuka Y,Kushiro T,Kanmatsuse K

    更新日期:2004-01-01 00:00:00

  • Comparative study on the in vitro and in vivo activities of heparinoids derivative investigated on the animal model.

    abstract::In this study we compared the antithrombotic and anticoagulant properties of sodium and calcium derivatives of pentosan polysulfate (Na-PPS, Ca-PPS), unfractionated heparin (UFH), and low-molecular-weight heparin (Fraxiparin). The antithrombotic effects of these agents have been investigated in an experimental thrombo...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-199909000-00004

    authors: Giedrojć J,Klimiuk M,Radziwon P,Kłoczko J,Bielawiec M,Breddin HK

    更新日期:1999-09-01 00:00:00

  • Phospholipase C/protein kinase C pathway mediates angiotensin II-dependent apoptosis in neonatal rat cardiac fibroblasts expressing AT1 receptor.

    abstract::Cardiac fibroblasts are the major non-myocyte cell constituent in the myocardium, and they are involved in heart remodeling. Angiotensin II type 1 receptor (AT1R) mediates the established actions of angiotensin II (Ang II), and changes in its expression have been reported in cardiac fibroblasts after myocardial infarc...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/FJC.0b013e318181fadd

    authors: Vivar R,Soto C,Copaja M,Mateluna F,Aranguiz P,Muñoz JP,Chiong M,Garcia L,Letelier A,Thomas WG,Lavandero S,Díaz-Araya G

    更新日期:2008-08-01 00:00:00

  • Age-dependent hyperresponsiveness of spontaneously hypertensive rats to the pressor effects of intravenous neuropeptide Y (NPY): role of mode of peptide administration and plasma NPY-like immunoreactivity.

    abstract::The effects of various doses of intravenously (i.v.) infused (5-min duration, 0.1-3.2 nmol/kg/min) or bolus-injected (0.1-3.2 nmol/kg) porcine and/or rat/human neuropeptide Y (NPY) on mean arterial pressure (MAP), heart rate (HR), and plasma concentrations of porcine NPY-like immunoreactivity (pNPYir) were examined in...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-199111000-00001

    authors: Miller DW,Tessel RE

    更新日期:1991-11-01 00:00:00

  • LRP1 and APOA1 Polymorphisms: Impact on Warfarin International Normalized Ratio-Related Phenotypes.

    abstract::Warfarin international normalized ratio (INR)-related phenotypes such as the percentage of INR time in the therapeutic range (PTTR) and INR variability are associated with warfarin adverse reactions. However, INR-related phenotypes greatly vary among patients, and the underlying mechanism remains unclear. As a key cof...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/FJC.0000000000000834

    authors: Li D,Luo ZY,Chen Y,Zhu H,Song GB,Zhou XM,Yan H,Zhou HH,Zhang W,Li X

    更新日期:2020-07-01 00:00:00

  • Effect of autonomic blockade on the hemodynamic responses of normal human subjects to acute intravenous milrinone.

    abstract::We studied the hemodynamic effects of four doses of milrinone, administered by intravenous (i.v.) infusion alone and after autonomic blockade with prazosin, propranolol, atropine, and clonidine. Plasma concentrations of milrinone (50-600 ng/ml) were similar to those used for the treatment of cardiac failure and were u...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-198705000-00002

    authors: Hasking GJ,Dewar E,Nelson L,Oddie CJ,Bobik A,Jennings GL

    更新日期:1987-05-01 00:00:00

  • Brain expression of VEGF and its receptors in SHR-SP and effects of an endothelin blocker.

    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

    authors: Jesmin S,Sakuma I,Togashi H,Yoshioka M,Hattori Y,Kitabatake A,Miyauchi T

    更新日期:2004-11-01 00:00:00

  • Endothelial and Perivascular Adipose Tissue Abnormalities in Obesity-Related Vascular Dysfunction: Novel Targets for Treatment.

    abstract::The heavy impact of obesity on the development and progression of cardiovascular disease has sparked sustained efforts to uncover the mechanisms linking excess adiposity to vascular dysfunction. In addition to its well-established role in maintaining vascular homeostasis, the endothelium has been increasingly recogniz...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章,评审

    doi:10.1097/FJC.0000000000000469

    authors: Schinzari F,Tesauro M,Cardillo C

    更新日期:2017-06-01 00:00:00

  • Characterization of endothelin-1 stimulation of catecholamine release from adrenal chromaffin cells.

    abstract::Addition of endothelin-1 (ET-1) to primary cultures of bovine adrenal chromaffin cells causes a significant enhancement of norepinephrine and epinephrine efflux, with an EC50 of about 1 nM. A maximally effective concentration of endothelin (10 nM) gives a transient increase in noradrenaline release within 5 min. The a...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-198900135-00066

    authors: Boarder MR,Marriott DB

    更新日期:1989-01-01 00:00:00

  • Ketanserin reduces graft arteriosclerosis after allogeneic aorta transplantation in rats.

    abstract::The serotonin-2 receptor antagonist ketanserin has been suggested to diminish arteriosclerotic development by its effect on platelet function and on vascular smooth muscle cells. We investigated the ability of ketanserin in reducing immune-mediated arteriosclerosis using the BN-WAG and WAG-BN rat aortic transplantatio...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-199603000-00001

    authors: Geerling RA,de Bruin RW,Scheringa M,Bonthuis F,IJzermans JN,Marquet RL

    更新日期:1996-03-01 00:00:00

  • Influence of ketanserin on regional myocardial blood flow after myocardial infarction in baboons.

    abstract::Serotonin (5-hydroxytryptamine, 5-HT) mediates vasoconstriction and vasodilation in normal coronary circulation of various animal species. In the presence of coronary artery disease, serotonin may inhibit coronary collateral formation and stimulate predominantly vasoconstriction. We tested the effect of ketanserin, a ...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-199301000-00021

    authors: Hartford CG,Rogers GG,Marcos EF,Rosendorff C

    更新日期:1993-01-01 00:00:00

  • Acute effects of nisoldipine, propranolol, and their combination in patients with chronic stable angina: a double-blind, randomized, cross-over, placebo-controlled study.

    abstract::We studied the short-term effects of oral administration of nisoldipine (10 mg) and propranolol (80 mg) alone and in combination in 14 patients with chronic exertional angina pectoris in a double-blind, randomized, cross-over study. The 14 patients (13 men and 1 woman, mean age 56 +/- 7 years) performed symptoms-limit...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/00005344-199008000-00020

    authors: De Caprio L,Papa M,Acanfora D,Abete P,Gallucci F,Covelluzzi F,Cicatiello AM,Rengo F

    更新日期:1990-08-01 00:00:00

  • The combination of chlorthalidone with nifedipine does not exert an additive antihypertensive effect in essential hypertensives: a crossover multicenter study.

    abstract::To evaluate whether the combination of nifedipine with chlorthalidone exerts an additive antihypertensive effect when compared to single-drug treatment, 66 uncomplicated essential hypertensives, whose diastolic blood pressure was greater than 100 and less than 115 mm Hg at the end of a 1-month washout placebo 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:10.1097/00005344-199102000-00021

    authors: Salvetti A,Magagna A,Innocenti P,Ponzanelli F,Cagianelli A,Cipriani M,Gandolfi E,Del Prato C,Ballestra AM,Saba P

    更新日期:1991-02-01 00:00:00

  • Inhibitory properties of NIP-121, a potassium channel opener, on high potassium- and norepinephrine-induced contraction and calcium mobilization in rat aorta.

    abstract::We examined the effects of NIP-121, a potassium channel opener, on KCl- and norepinephrine (NE)-induced contraction, the phasic-contraction under the Ca(2+)-free condition and cytosolic free-Ca2+ mobilization using isolated rat aorta. NIP-121 as well as cromakalim inhibited, in the KCl- and NE-contractions concentrati...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:

    authors: Yamashita T,Masuda Y,Tanaka S

    更新日期:1994-12-01 00:00:00

  • Experimental myocardial infarction in adjuvant arthritis rats.

    abstract::We studied the influence of various inflammatory reactions on the survival rate and occurrence of arrhythmias in the acute phase of experimental myocardial infarction in conscious male Sprague--Dawley CFY rats. Chronic disseminated inflammatory disease was induced by subplantar injection of Freund complete adjuvant, w...

    journal_title:Journal of cardiovascular pharmacology

    pub_type: 杂志文章

    doi:10.1097/00005344-198205000-00004

    authors: Koltai M,Leprán I,Nemecz G,Szekeres L

    更新日期:1982-05-01 00:00:00