Stimulation of rat erythrocyte P2X7 receptor induces the release of epoxyeicosatrienoic acids.

abstract：BACKGROUND AND PURPOSE:Inhalation of the superantigen,staphylococcal enterotoxin B (SEB), leads to the activation of the host T and invariant natural killer (iNK) T cells, thereby resulting in acute lung inflammation and respiratory failure but the underlying mechanism(s) of disease remain elusive, with limited treatme...

journal_title：British journal of pharmacology

authors： Rieder SA,Nagarkatti P,Nagarkatti M

更新日期：2012-11-01 00:00:00

abstract：:1. Acetylcholine mustard (N-2-chloroethyl-N-methyl-2-acetoxyethylamine), a potent muscarinic agonist, binds virtually irreversibly to muscarinic receptors in longitudinal muscle strips from guinea-pig small intesting, as shown by the inhibition of the binding of E13-H]-propylbenzilycholine mustard ([3-H-PrBCM), an aff...

journal_title：British journal of pharmacology

authors： Robinson DA,Taylor JG,Young JM

更新日期：1975-03-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Sildenafil is a selective inhibitor of cGMP-specific phosphodiesterase. Sildenafil, acting via NO-dependent mechanisms, prevents indomethacin-induced gastropathy. Activation of ATP-sensitive potassium channels (K(ATP)) is involved in gastric defence. Our objective was to evaluate the role of the ...

journal_title：British journal of pharmacology

authors： Medeiros JV,Gadelha GG,Lima SJ,Garcia JA,Soares PM,Santos AA,Brito GA,Ribeiro RA,Souza MH

更新日期：2008-02-01 00:00:00

abstract：:1. Recent studies have shown antagonists at the NK1 subtype of receptor for tachykinins are antiemetics and suggested that this may result from blockade of tachykinin-mediated synaptic transmission at a central site in the emetic reflex. 2. We have used intracellular recording in vitro to study the pharmacology of tac...

journal_title：British journal of pharmacology

authors： Maubach KA,Jones RS

更新日期：1997-11-01 00:00:00

abstract：:1. In the zymosan rat air pouch model of inflammation we have assessed the time dependence of phospholipase A2 (PLA2) accumulation in the inflammatory exudates as well as cell migration, myeloperoxidase activity, prostaglandin E2 (PGE2) and leukotriene B4 (LTB4) levels. 2. A significant increase in PLA2 activity was d...

journal_title：British journal of pharmacology

authors： Payá M,Terencio MC,Ferrándiz ML,Alcaraz MJ

更新日期：1996-04-01 00:00:00

abstract：:The complement system plays a major role in threat recognition and in orchestrating responses to microbial intruders and accumulating debris. This immune surveillance is largely driven by lectins that sense carbohydrate signatures on foreign, diseased and healthy host cells and act as complement activators, regulators...

journal_title：British journal of pharmacology

authors： Hevey R,Pouw RB,Harris C,Ricklin D

更新日期：2020-11-03 00:00:00

abstract：:1. Neurogenic responses to transmural electrical stimulation were examined in endothelium-denuded extrameningeal (vertebral and carotid) and intrameningeal (spinal, basilar and middle cerebral) arteries isolated from dogs. 2. In the extrameningeal arteries, transmural electrical stimulation produced a phasic contracti...

journal_title：British journal of pharmacology

authors： Kohno Y,Saito T,Saito H,Aoyama H,Nojyo Y,Kigoshi S,Muramatsu I

更新日期：1995-11-01 00:00:00

abstract：:1. The effect of prostaglandin E1 (PGE1) on the spontaneous phasic contraction of the rat isolated portal vein was studied. 2. The isolated portal vein exhibited spontaneous phasic contractions. Removal of Ca2+ from Krebs-Ringer solution or application of nifedipine abolished the spontaneous contraction, indicating th...

journal_title：British journal of pharmacology

authors： Miwa T,Endou M,Okumura F

更新日期：1997-04-01 00:00:00

abstract：:1 The effects of diltiazem on smooth muscle cells of the canine basilar artery were investigated by means of microelectrode, double sucrose gap and isometric tension recording methods. 2 The mean membrane potential of the smooth muscle cells was -49.8 mV and they were electrically quiescent. Diltiazem (over 10(-5) M) ...

journal_title：British journal of pharmacology

authors： Fujiwara S,Ito Y,Itoh T,Kuriyama H,Suzuki H

更新日期：1982-03-01 00:00:00

abstract：:1 In the isolated basilar artery of the rabbit, gamma-aminobutyrate acid (GABA) (ED50 +/- s.e. mean, 2.4 +/- 1.1 x 10(-5) M) produced a relaxation, if the tone had been increased with 5-hydroxytryptamine (5-HT). 2 3-Aminoproprane sulphonic acid (3-APS) produced a similar, but smaller relaxation, while baclofen had no ...

journal_title：British journal of pharmacology

authors： Anwar N,Mason DF

更新日期：1982-01-01 00:00:00

abstract：:The pharmacological properties of endothelin receptors (ETR) were investigated in guinea-pig bronchus by comparing binding and functional results. In binding assays, both the ET(B) agonists, endothelin-3 (ET-3) and N-suc-[Glu9,Ala11,15]ET-1(8-21) (IRL 1620), and the antagonist, N-cis-2,6-dimethylpiperidinocarbonyl-L-g...

journal_title：British journal of pharmacology

authors： Mazzoni MR,Breschi MC,Ceccarelli F,Lazzeri N,Giusti L,Nieri P,Lucacchini A

更新日期：1999-07-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Injury to the lung parenchyma is a constitutional feature shared by many lung diseases. The protein, phosphatase and tensin homologue deleted on chromosome Ten (PTEN) is a major suppressor of phosphoinositide-3 kinase/Akt signalling, a vital survival pathway in lung parenchymal cells. Based on th...

journal_title：British journal of pharmacology

authors： Lai JP,Bao S,Davis IC,Knoell DL

更新日期：2009-01-01 00:00:00

abstract：:Gut inflammation occurring in patients with inflammatory bowel diseases (IBD) is associated with an excessive immune response that is directed against constituents of the normal bacterial flora and results in the production of large amounts of inflammatory cytokines. Anti-cytokine compounds, such as the neutralizing T...

journal_title：British journal of pharmacology

authors： Caprioli F,Caruso R,Sarra M,Pallone F,Monteleone G

更新日期：2012-02-01 00:00:00

abstract：:Asthma is an inflammatory disease of the lungs and the transcription factor NF-kappa B regulates the production of numerous inflammatory mediators that may have a role in the pathogenesis of asthma. Hence, the signalling pathways leading to NF-kappa B activation are considered prime targets for novel anti-inflammatory...

journal_title：British journal of pharmacology

authors： Catley MC,Chivers JE,Holden NS,Barnes PJ,Newton R

更新日期：2005-05-01 00:00:00

abstract：:1 Groups of mice were pretreated with the 5-hydroxytryptamine (5-HT) depletors, fenfluramine or p-chlorophenylalanine (PCPA), followed by pethidine or morphine. 2 Fenfluramine alone produced a short lasting analgesia but PCPA was without any effect. 3 Pethidine and morphine both increased hot plate reaction times meas...

journal_title：British journal of pharmacology

authors： Botting R,Morinan A

更新日期：1982-04-01 00:00:00

abstract：:1. The effects of formoterol, a beta 2-adrenoceptor agonist, on plasma protein exudation and microvascular permeability induced by topical, i.e. applied onto the tracheal mucosal surface, bradykinin (10 nmol; 20 microM, 5 min, 0.1 ml min-1) were studied in a perfused segment of trachea prepared in situ in anaesthetize...

journal_title：British journal of pharmacology

authors： O'Donnell SR,Anderson GP

更新日期：1995-09-01 00:00:00

abstract：:1 Pretreatment of dogs for 20 to 24 h before the start of experiments with reserpine (0.5 mg/kg) depleted noradrenaline from cerebral and mesenteric arteries, the diminution being greater in the latter arteries. 2 Contractile responses of helically-cut strips of cerebral and mesenteric arteries to noradrenaline were u...

journal_title：British journal of pharmacology

authors： Hayashi S,Miyazaki M,Toda N

更新日期：1980-03-01 00:00:00

abstract：:1. The nature and cellular mechanisms that are responsible for endothelium-dependent relaxations resistant to indomethacin and NG-nitro-L-arginine methyl ester (L-NAME) were investigated in phenylephrine (PE) precontracted isolated carotid arteries from the rabbit. 2. In the presence of the cyclo-oxygenase inhibitor, ...

journal_title：British journal of pharmacology

authors： Dong H,Waldron GJ,Galipeau D,Cole WC,Triggle CR

更新日期：1997-02-01 00:00:00

abstract：:Cholesterol and oxysterol sulfates are important regulators of lipid metabolism, inflammation, cell apoptosis, and cell survival. Among the sulfate-based lipids, cholesterol sulfate (CS) is the most studied lipid both quantitatively and functionally. Despite the importance, very few studies have analysed and linked th...

journal_title：British journal of pharmacology

authors： Sanchez LD,Pontini L,Marinozzi M,Sanchez-Aranguren LC,Reis A,Dias IHK

更新日期：2020-08-06 00:00:00

abstract：:1. Voltage-operated calcium channel (VOCC) antagonists are effective antihypertensive and antianginal agents but they also depress myocardial contractility. 2. We compared four L-type calcium channel antagonists, felodipine, nifedipine, amlodipine and verapamil and a relatively T-type selective calcium channel antagon...

journal_title：British journal of pharmacology

authors： Sarsero D,Fujiwara T,Molenaar P,Angus JA

更新日期：1998-09-01 00:00:00

abstract：:(1) Increased oxidative stress plays a significant role in the etiology of cardiovascular disease. Lipid peroxidation, initiated in the presence of hydroxy radicals resulting in the production of malondialdehyde, directly produces oxidative stress. This study was designed to examine the direct impact of malondialdehyd...

journal_title：British journal of pharmacology

authors： Folden DV,Gupta A,Sharma AC,Li SY,Saari JT,Ren J

更新日期：2003-08-01 00:00:00

abstract：:Immersion of the hind paws of anesthetized rats in hot water for 5 min induced massive plasma protein leakage as indicated by extravasation of Evans blue dye in the skin. The threshold temperature which caused noticeable plasma extravasation was 45 degrees C, a maximal response was obtained between 55 degrees C and 60...

journal_title：British journal of pharmacology

authors： Saria A

更新日期：1984-05-01 00:00:00

abstract：:Dopamine D2-receptors were solubilized from synaptosomal membranes of the bovine caudate nucleus using different detergents. They were labelled with [3H]-spiperone and assayed by polyethylene glycol precipitation. CHAPS was found to be the best solubilizing agent among all detergents used. Optimal conditions for solub...

journal_title：British journal of pharmacology

authors： Kidric M,Petrović J,Soskić V,Trajković D

更新日期：1984-11-01 00:00:00

abstract：:1. The alpha 2-adrenoceptor binding sites of rabbit spleen and rat kidney, labelled with [3H]-rauwolscine, were characterized using a range of subtype selective ligands. 2. In rabbit spleen, the alpha-2-adrenoceptor binding sites displayed high affinity for oxymetazoline and WB 4101 and low affinity for prazosin and c...

journal_title：British journal of pharmacology

authors： Michel AD,Loury DN,Whiting RL

更新日期：1990-03-01 00:00:00

abstract：:1. Microfluorimetry techniques with fura-2 were used to characterize the effects of efaroxan (200 microM), phenotolamine (200-500 microM) and idazoxan (200-500 microM) on the intracellular free Ca2+ concentration ([Ca2+]i) in mouse isolated islets of Langerhans. 2. The imidazoline receptor agonists efaroxan and phento...

journal_title：British journal of pharmacology

authors： Shepherd RM,Hashmi MN,Kane C,Squires PE,Dunne MJ

更新日期：1996-11-01 00:00:00

abstract：:1. Patients with airway infection by Pseudomonas aeruginosa have impaired mucociliary clearance. Pyocyanin is a phenazine pigment produced by P. aeruginosa which is present in the sputum of colonized patients, slows human ciliary beat frequency (CBF) in vitro and slows mucociliary transport in vivo in the guinea-pig. ...

journal_title：British journal of pharmacology

authors： Kanthakumar K,Cundell DR,Johnson M,Wills PJ,Taylor GW,Cole PJ,Wilson R

更新日期：1994-06-01 00:00:00

abstract：:The tachykinin, neurokinin A (NKA), contracts guinea-pig airways both in vitro and in vivo, preferentially activating smooth muscle NK(2) receptors, although smooth muscle NK(1) receptors may also contribute. In vitro evidence suggests that NKA activates epithelial NK(1) receptors, inducing the release of nitric oxide...

journal_title：British journal of pharmacology

authors： Ricciardolo FL,Trevisani M,Geppetti P,Nadel JA,Amadesi S,Bertrand C

更新日期：2000-03-01 00:00:00

abstract：:1. Chronic inhibition of nitric oxide synthase (NOS) provokes a hypertensive state which has been shown to be angiotensin II (Ang-II) dependent. In addition to raising blood pressure, NOS inhibition also causes leukocyte adhesion. The present study was designed to define the role of Ang-II in hypertension and in the l...

journal_title：British journal of pharmacology

authors： Alvarez A,Piqueras L,Bello R,Canet A,Moreno L,Kubes P,Sanz MJ

更新日期：2001-02-01 00:00:00

abstract：:1 The actions of ethylenediamine (EDA) and structurally related compounds were investigated by microiontophoresis in Wistar rats. 2 EDA inhibited, via a bicuculline-sensitive mechanism, the spontaneous firing rate of all cortical and pallidal cells tested. 3 The results with the analogues suggest that two amine groups...

journal_title：British journal of pharmacology

authors： Perkins MN,Stone TW

更新日期：1982-01-01 00:00:00

abstract：:The gastrointestinal (GI) tract is exposed to a large array of proteases, under both physiological and pathophysiological conditions. The discovery of G protein-coupled receptors activated by proteases, the protease-activated receptors (PARs), has highlighted new signaling functions for proteases in the GI tract, part...

journal_title：British journal of pharmacology

authors： Vergnolle N

更新日期：2004-04-01 00:00:00