Contribution of the amiloride-sensitive component and the Na+/H+ exchanger to renal responsiveness to vasoconstrictors.

Abstract:

AIMS:This study analyzed the role of the amiloride-sensitive component and the participation of the Na(+)/H(+) exchanger in renal responsiveness to vasoconstrictors in the isolated perfused rat kidney. METHODS:The renal responses to vasoconstrictors (angiotensin II, phenylephrine, vasopressin and KCl) were studied under baseline conditions and after the administration of amiloride (10 and 100 μmol/l) or the specific Na(+)/H(+) exchange inhibitor ethylisopropylamiloride (EIPA, 10 μmol/l). The effects of amiloride and EIPA on renal responsiveness to vasoconstrictors were also analyzed in endothelium-denuded preparations. RESULTS:Amiloride reduced renal responsiveness to all vasoconstrictors in a dose-related manner, whereas EIPA did not affect the renal pressor response to KCl. The inhibitory effects of amiloride and EIPA on renal responsiveness to vasoconstrictors persisted after endothelium removal. CONCLUSION:These results indicate that the amiloride-sensitive component and the Na(+)/H(+) exchanger play an important role in responsiveness to the main endogenous vasoconstrictors in the renal vasculature. These results also suggest that amiloride might be useful as an inhibitor of renal vasoconstriction, even in diseases with endothelial dysfunction.

journal_name

Pharmacology

journal_title

Pharmacology

authors

Vargas P,Wangensteen R,Rodríguez-Gómez I,Perez-Abud R,Osuna A,Quesada A,Vargas F

doi

10.1159/000330455

subject

Has Abstract

pub_date

2011-01-01 00:00:00

pages

142-8

issue

3-4

eissn

0031-7012

issn

1423-0313

pii

000330455

journal_volume

88

pub_type

杂志文章
  • Mechanisms of tetraethylammonium-induced contraction in the canine coronary artery.

    abstract::Tetraethylammonium chloride (TEA) at concentrations over 10(-3) mol/l produced a concentration-dependent contraction in the isolated canine coronary artery. We investigated mechanisms of the contractile response and the effects of various vasodilators on the contraction. While phentolamine, propranolol, guanethidine, ...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000138224

    authors: Nishio M,Kigoshi S,Muramatsu I

    更新日期:1986-01-01 00:00:00

  • Anticonvulsant effect of morphine and morphine-like analgesics in Mongolian gerbils.

    abstract::The effect of morphine, fentanyl, pethidine and pentazocine was studied in gerbils against air blast-induced seizures. Major, generalized seizures were suppressed by morphine (ED50 = 4.0 mg/kg s.c.), fentanyl (ED50 = 64 micrograms/kg s.c.), and pethidine (ED50 = 2.4 mg/kg s.c.), but not by pentazocine. The anticonvuls...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000138189

    authors: Frey HH

    更新日期:1986-01-01 00:00:00

  • Interaction of tacrine at M1 and M2 cholinoceptors in guinea pig brain.

    abstract::Tacrine (THA) selectively modulates binding of M1 ligands in an allosteric fashion causing positive cooperativity. The binding affinity of THA to M1 and M2 cholinoceptors is similar. It is therefore proposed that the allosteric selectivity of THA is a function of the binding site and not of THA itself. Its interaction...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000139101

    authors: Szilagyi M,Lau WM

    更新日期:1993-10-01 00:00:00

  • Introducing Female Black Swiss Mice: Minimal Effects of Sex in a Strain-Specific Battery of Tests for Mania-Like Behavior and Response to Lithium.

    abstract::Black Swiss (BS) mice were shown to be an advantageous strain to model behavioral domains of mania, but to date only male mice were tested, whereas bipolar disorder (BPD) is equally prevalent in women and men. This study was therefore designed to examine the possibility of using both male and female BS mice in future ...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000381785

    authors: Ene HM,Kara NZ,Einat H

    更新日期:2015-01-01 00:00:00

  • Effect of atorvastatin treatment on isoproterenol-induced myocardial infarction in rats.

    abstract::In the present study, chronic treatment of atorvastatin was evaluated on isoproterenol-induced myocardial infarction. Male Sprague-Dawley rats (200 +/- 25 g) were randomized into the following four groups: (1) control group, (2) isoproterenol-treated group, (3) atorvastatin-treated group, and (4) isoproterenol- and at...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000092308

    authors: Trivedi CJ,Balaraman R,Majithiya JB,Bothara SB

    更新日期:2006-01-01 00:00:00

  • Effect of isocaloric diets and sibutramine on food intake, body mass variation and serum TNF-alpha levels in rats.

    abstract:BACKGROUND/AIM:The effect of isocaloric diets and sibutramine on dietary behaviour and TNF-alpha is poorly understood. The aim of the study was to investigate the effects of isocaloric diets and sibutramine on food intake, body mass variation and serum TNF-alpha in free-feeding rats. METHODS:Three groups of male Wista...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000127363

    authors: Trapali M,Liapi C,Perelas A,Perrea D,Stroubini T,Dontas I,Couvari E,Mavri M,Galanopoulou P

    更新日期:2008-01-01 00:00:00

  • Antihypertensive effect of 5-HT1A agonist buspirone and 5-HT2B antagonists in experimentally induced hypertension in rats.

    abstract::We investigated the antihypertensive effect of 5-HT1A agonist (buspirone) and 5-HT2B antagonists (SB204741 and SB200646) in deoxycorticosterone acetate (DOCA)-salt-induced hypertensive rats. Experiments were divided into two sets: in the first set, sham-operated control and DOCA-treated hypertensive rats received busp...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000082114

    authors: Shingala JR,Balaraman R

    更新日期:2005-03-01 00:00:00

  • Effects of vinconate and pentobarbital against postischemic alterations in spirodecanone binding sites in the gerbil brain.

    abstract::We investigated the effects of vinconate and pentobarbital against the alterations in spirodecanone binding in the gerbil striatum and hippocampus 5 h and 7 days after 10 min of cerebral ischemia, using receptor autoradiography. Vinconate and pentobarbital were given intraperitoneally 10 and 30 min prior to ischemic i...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000139245

    authors: Murakami F,Araki T,Kanai Y,Kato H,Fujiwara T,Kogure K

    更新日期:1994-11-01 00:00:00

  • A randomised, two-period, cross-over, open-label study to evaluate the pharmacokinetic profiles of single doses of two different flurbiprofen 8.75-mg lozenges in healthy volunteers.

    abstract:AIMS:To compare the bioavailability of a new oromucosal formulation of flurbiprofen 8.75-mg lozenges, developed by Alfa Wassermann S.p.A. (test drug) to that of marketed flurbiprofen 8.75-mg lozenges (Benactiv Gola®, reference drug). METHODS:This was an open, randomised, two-period, crossover, pharmacokinetic (PK) stu...

    journal_title:Pharmacology

    pub_type: 杂志文章,随机对照试验

    doi:10.1159/000336767

    authors: Matzneller P,Burian A,Martin W,Annoni O,Lauro V,Tacchi R,Brunner M,Zeitlinger M

    更新日期:2012-01-01 00:00:00

  • Glycerophosphate is interchangeable with inorganic phosphate in terms of safety and serum pharmacokinetics.

    abstract:OBJECTIVE:The primary aim of the present investigation was to determine and compare the pharmacokinetic (PK) profiles of inorganic phosphate in serum and urine after intravenous administration of sodium glycerophosphate and inorganic sodium phosphate. Additionally, study product safety profiles were evaluated. SUBJECT...

    journal_title:Pharmacology

    pub_type: 杂志文章,随机对照试验

    doi:10.1159/000331341

    authors: Topp H,Hochfeld O,Bark S,Grossmann M,Joukhadar C,Westphal M,Straatsma H,Rothenburger M

    更新日期:2011-01-01 00:00:00

  • Inhibition of the histamine-stimulated adenylate cyclase activity of guinea pig gastric cells by the H2-receptor antagonists cimetidine, oxmetidine and SKF 93479.

    abstract::The effect of cimetidine and two new histamine H2-receptor antagonists, oxmetidine and SKF 93479, on histamine-stimulated adenylate cyclase activity was studied in guinea pig gastric mucosal cells. Histamine stimulated the enzyme activity in concentration-dependent fashion. The concentration-response curve of histamin...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000137973

    authors: Cheret AM,Scarpignato C,Lewin MJ,Bertaccini G

    更新日期:1984-01-01 00:00:00

  • Effects of carbenoxolone sodium on gastric and duodenal mucus synthesis in mice.

    abstract::Using the method of staining mucus with Alcian blue and destaining it with magnesium chloride, it was found that intragastric administration of carbenoxolone in mice did not significantly affect duodenal mucus synthesis at doses which remarkably increased gastric mucus synthesis. However, in vitro study showed that ca...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000138201

    authors: Dai S,Ogle CW,Cho CH

    更新日期:1986-01-01 00:00:00

  • Effects of calcium antagonists on binding of local anesthetics to plasma proteins and erythrocytes in mice.

    abstract::This study was designed to document possible changes in the binding of bupivacaine (BV), lidocaine (LC) and their main metabolites desbutylbupivacaine (PPX) and monoethylglycinexylydide (MEGX), respectively, to plasma proteins and erythrocytes in mice after acute treatment with the calcium antagonists diltiazem (DZ), ...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000139433

    authors: Jacob D,Grignon S,Attolini L,Gantenbein M,Bruguerolle B

    更新日期:1996-10-01 00:00:00

  • Action of cytidine diphosphocholine on functional and hemodynamic effects of cerebral ischemia in cats.

    abstract::The depression of evoked cortical potentials caused by brief periods of cerebral ischemia is attenuated by prior intracarotid injection of cytidoline (2, 4 or 8 mg/kg). Studies performed in hypercapnic cats suggest that the protection afforded by cytidoline is of metabolic rather than hemodynamic origin. The participa...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000136830

    authors: Boismare F,Le Poncin M,Lefrançois J,Lecordier JC

    更新日期:1978-01-01 00:00:00

  • Euodia daniellii Hemsl. (Bee-Bee Tree) Oil Attenuates Palmitate-Induced Lipid Accumulation and Apoptosis in Hepatocytes.

    abstract::Hepatic lipid accumulation and apoptosis is elevated in patients with non-alcoholic steatohepatitis and is closely associated with severity. Saturated fatty acid palmitate stimulates lipid accumulation and apoptosis in hepatocytes. In the present study, we examined bee-bee tree oil (BO)-mediated protective effects on ...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000487892

    authors: Jung TW,Kim SY,Kim DS,Shin EC,Park YB,Lee KT

    更新日期:2018-01-01 00:00:00

  • Effects of cooling on the levels of acetylcholine, cholinesterase, choline acetyltransferase and the intramural electrical stimulation on the guinea pig ileum.

    abstract::The effects of hypothermia (4 degrees C) on the components of the cholinergic system of the ileal longitudinal muscle and the adherent Auerbach's plexus of the guinea pig ileum have been investigated. Acetylcholine (ACh) content of the muscle was determined by pyrolysis-gas chromatography. It decreased from 119 to a f...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000136756

    authors: Ochillo R,Rowell PP,Sastry BV

    更新日期:1978-01-01 00:00:00

  • Effects of magnesium on human umbilical arteries: role of intracellular calcium stores.

    abstract::The purpose of this investigation on human umbilical arteries was: (1) to analyze the effects of magnesium (Mg2+) in the prevention of contractions induced by 5-hydroxytryptamine (5-HT), KCl, Bay K 8644 and BaCl2; (2) to determine whether the presence of Mg2+ could modulate the response to caffeine in Ca2+-free medium...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000028255

    authors: Tiritilli A

    更新日期:1998-12-01 00:00:00

  • Influence of epithelium and isoprenaline incubation on responsiveness of guinea-pig trachea to methacholine.

    abstract::There are reports regarding harmful effect of long-term use of beta2-agonist drugs on asthma severity and airway responsiveness. In the present study, the responses of guinea pig trachea with intact and denuded epithelium (groups 1 and 2, n = 10) to methacholine as EC50 were measured in tissues nonincubated or incubat...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000088739

    authors: Boskabady MH,Aslani MR,Tabatabaei A

    更新日期:2006-01-01 00:00:00

  • Cardiovascular pharmacology of SKP-450, a new potassium channel activator, and its major metabolites SKP-818 and SKP-310.

    abstract::The cardiovascular effects of SKP-450, a newly synthesized potassium channel activator, and its two major metabolites SKP-818 and SKP-310 were evaluated on isolated rat aorta and in freely moving rats and anesthetized beagle dogs. The rank order of potency in relaxing rat aorta precontracted with norepinephrine was SK...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000028188

    authors: Shin HS,Seo HW,Yoo SE,Lee BH

    更新日期:1998-03-01 00:00:00

  • Characterization of Ascaris-induced biphasic skin allergic reaction model in mice: possible roles of mast cells in early-phase and CD4-positive T cells in late-phase reactions.

    abstract::We established an Ascaris-induced biphasic skin allergic reaction in mice. In the early-phase reaction (EPR), mast cell degranulation was observed, and tranilast inhibited ear edema. In mast-cell-deficient mice (WBB6F(1)-W/W(V) mice), ear edema in the EPR disappeared, whereas that in the late-phase reaction (LPR) rema...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000056117

    authors: Sengoku T,Sato S,Sakuma S,Ogawa T,Ohkubo Y,Goto T

    更新日期:2001-01-01 00:00:00

  • Effects of camonagrel, a selective inhibitor of platelet thromboxane synthase, on the platelet-subendothelium interaction.

    abstract::The aim of this study was to compare the effects of a new thromboxane synthase inhibitor, camonagrel, on platelet aggregation and platelet-subendothelium interaction under flow conditions, in comparison with a standard thromboxane synthase inhibitor (dazoxiben) and a cyclooxygenase inhibitor (acetylsalicylic acid). Wi...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000071266

    authors: Villalobos MA,De La Cruz JP,Escalante R,Arrebola MM,Guerrero A,Sánchez de la Cuesta F

    更新日期:2003-09-01 00:00:00

  • Fenofibrate treatment attenuated chronic endoplasmic reticulum stress in the liver of nonalcoholic fatty liver disease mice.

    abstract::Fenofibrate is widely used in clinical practice, but its influence on chronic endoplasmic reticulum (ER) stress induced by feeding a high-calorie and high-cholesterol diet (HCD) has still not been studied. We thus investigated its effects on the liver of the nonalcoholic fatty liver disease (NAFLD) mouse model. Male C...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000380952

    authors: Zhang N,Lu Y,Shen X,Bao Y,Cheng J,Chen L,Li B,Zhang Q

    更新日期:2015-01-01 00:00:00

  • Fisher Discrimination of Metabolic Changes in Rats Treated with Aspirin and Ibuprofen.

    abstract:BACKGROUND:Aspirin and ibuprofen are the most frequently prescribed non-steroidal anti-inflammatory drugs in the world. However, both are associated with a variety of toxicities. We applied serum metabonomics and Fisher discrimination for the early diagnosis of its toxic reaction in order to help diagnose these toxicit...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000477971

    authors: Zhang J,Song H,Jiang S,Chen Z,Tong S,Lin F,Wen C,Zhang X,Hu L

    更新日期:2017-01-01 00:00:00

  • Melatonin Induces Osteoblastic Differentiation of Mesenchymal Stem Cells and Promotes Fracture Healing in a Rat Model of Femoral Fracture via Neuropeptide Y/Neuropeptide Y Receptor Y1 Signaling.

    abstract::The function of melatonin (MLT) in promoting fracture healing has been demonstrated in previous studies. However, the molecular mechanism underlying therapeutic effects of MLT is not entirely clear. In this study, mesenchymal stem cells (MSCs) were isolated from rat bone marrow and identified by flow cytometry. We fou...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000492576

    authors: Dong P,Gu X,Zhu G,Li M,Ma B,Zi Y

    更新日期:2018-01-01 00:00:00

  • Influence of blood flow on intestinal absorption of xenobiotics.

    abstract::The dependence of intestinal absorption of xenobiotics on the blood flow rate increases from blood flow independent to blood flow limited absorption as the absorbability of the substances increases. Since the absorbed substances are mainly drained by the blood flowing through the subepithelial vessels, not only the to...

    journal_title:Pharmacology

    pub_type: 杂志文章,评审

    doi:10.1159/000137409

    authors: Winne D

    更新日期:1980-01-01 00:00:00

  • Immunomodulatory effects of in vitro exposure to morphine and its metabolites.

    abstract::Both in vivo and in vitro exposure to morphine have been reported to produce a number of immunomodulatory effects in both laboratory animals and humans. The current study was performed to assess the direct in vitro effect of exposure to morphine or morphine metabolites on immune response parameters. Murine B6C3F1 sple...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000139266

    authors: Thomas PT,Bhargava HN,House RV

    更新日期:1995-01-01 00:00:00

  • The effect of fenfluramine on disposition and rate of antipyrine elimination.

    abstract::The effect of fenfluramine, administered orally in a daily dose of 1 mg/kg for 40 days, on the disposition and rate of elimination of antipyrine was studied in 15 obese patients. Although the plasma half-life of antipyrine was unchanged, the apparent volume of distribution (1/kg) fell by 11.6% (p less than 0.001) and ...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000136880

    authors: O'Malley K,Stevenson IH,West M

    更新日期:1975-01-01 00:00:00

  • Effects of zinc acexamate (NAS-501) on superoxide radicals and lipid peroxidation of rat gastric mucosa.

    abstract::Zinc acexamate (NAS-501), an anti-ulcer agent, has been reported to prevent various acute experimental gastric mucosal lesions and duodenal ulcers in rats. In order to clarify the mechanisms by which NAS-501 exhibits the anti-ulcer effects, we investigated the anti-oxidative effects of NAS-501 in vitro and in vivo. NA...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000028283

    authors: Tsutsui Y,Nakamura Y,Yamaguchi S,Kawanaka N,Sato M

    更新日期:1999-04-01 00:00:00

  • Effect of anti-parkinsonism drugs on gastric emptying and intestinal transit in the rat.

    abstract::The effect of atropine sulfate, trihexyphenidyl HCl, benztropine mesylate, diphenhydramine HCl and ethopropazine HCl on gastric emptying and intestinal transit of a phenol red solution in the rat was examined. Intraperitoneal administration of 0.3 mg/kg atropine, 1.2 mg/kg benztropine and trihexyphenidyl results in a ...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000136728

    authors: Feldman S,Putcha L

    更新日期:1977-01-01 00:00:00

  • Electrophysiological studies of 6-(N,N-diethylamino)-Hexyl-3,4,5,-Trimethoxybenzoate on ventricular muscle and conduction system.

    abstract::The agent, 6-(N,N-diethylamino)-hexyl- 3, 4, 5,-Trimethoxybenzoate (TMB-6) which relaxes smooth and skeletal muscle by interfering with intracellular Ca ++ availability was tested for its electrophysiological effects on canine cardiac Purkinje fibres and feline papillary muscles. In both tissues the drug causes a decr...

    journal_title:Pharmacology

    pub_type: 杂志文章

    doi:10.1159/000136585

    authors: Posner P,Chiou CY

    更新日期:1976-01-01 00:00:00