Multidrug transporter activity in lymphocytes.

abstract：BACKGROUND AND PURPOSE:Depolarization-induced suppression of inhibition (DSI) and excitation (DSE) are two forms of cannabinoid CB(1) receptor-mediated inhibition of synaptic transmission, whose durations are regulated by endocannabinoid (eCB) degradation. We have recently shown that in cultured hippocampal neurons mon...

journal_title：British journal of pharmacology

authors： Straiker A,Wager-Miller J,Hu SS,Blankman JL,Cravatt BF,Mackie K

更新日期：2011-11-01 00:00:00

abstract：:1. We set out to elucidate the pharmacological mechanisms by which alpha 2-adrenoceptor and 5-HT-receptor ligands affect the haemodynamic response to acute central hypovolaemia in conscious rabbits. 2. Acute central hypovolaemia was produced by inflating an inferior vena caval cuff so that cardiac output fell at a con...

journal_title：British journal of pharmacology

authors： Evans RG,Haynes JM,Ludbrook J

更新日期：1993-05-01 00:00:00

abstract：:We studied the effects of the novel Na(+)/Ca(2+) exchange inhibitor KB-R7943, 2-[2-[4-(4-nitrobenzyloxy)phenyl]ethyl]isothiourea methanesulphonate, on the native nicotinic receptors present at the bovine adrenal chromaffin cells, as well as on rat brain alpha(3)beta(4) and alpha(7) nicotinic acetylcholine receptors (A...

journal_title：British journal of pharmacology

authors： Pintado AJ,Herrero CJ,García AG,Montiel C

更新日期：2000-08-01 00:00:00

abstract：:Pulmonary hypertension (PH) is a rare, progressive pulmonary vasculopathy characterized by increased mean pulmonary arterial pressure, pulmonary vascular remodelling and right ventricular failure. Current treatments are not curative, and new therapeutic strategies are urgently required. Clinical and preclinical eviden...

journal_title：British journal of pharmacology

authors： Scott TE,Kemp-Harper BK,Hobbs AJ

更新日期：2019-06-01 00:00:00

abstract：:1. We investigated the effect of KB-R7943, a Na(+)/Ca(2+) exchange inhibitor, on the aggregation response induced by adrenaline and 5-hydroxytryptamine (5-HT), alone or in combination in human and rabbit platelets in the presence or absence of ouabain. 2. KB-R7943 inhibited aggregation induced by the combination of ad...

journal_title：British journal of pharmacology

authors： Takano S,Kimura J,Ono T

更新日期：2001-04-01 00:00:00

abstract：:The incubation of rat peritoneal macrophages in the presence of staurosporine, a non-specific protein kinase inhibitor, induced interleukin-6 (IL-6) production in a time- and concentration-dependent manner at 6.3-63 nM, but at 210 nM, the stimulant effect on IL-6 production was reduced. The levels of IL-6 mRNA as dete...

journal_title：British journal of pharmacology

authors： Yamaki K,Ohuchi K

更新日期：1999-07-01 00:00:00

abstract：:1. In rats, recovery of sensory-motor function following a crush lesion of the sciatic or tibial nerve was monitored by measuring foot reflex withdrawal from a local noxious stimulation of the foot sole. 2. Putative neurotrophic compounds were tested on this functional recovery model: melanocortins (peptides derived f...

journal_title：British journal of pharmacology

authors： Van der Zee CE,Brakkee JH,Gispen WH

更新日期：1991-05-01 00:00:00

abstract：:1 The isolated perfused ear of the rabbit connected to the body only by its nerve, was used to investigate the influence of prostaglandin F2alpha on the algesic effect of bradykinin and acetylcholine. 2 Bradykinin and acetylcholine, following intra-arterial injection into the isolated perfused ear elicited a dose-rela...

journal_title：British journal of pharmacology

authors： Juan H,Lembeck F

更新日期：1977-03-01 00:00:00

abstract：BACKGROUND AND PURPOSE:The aim of this study was to determine whether the apelin/APJ system is altered in human cardiovascular disease by investigating whether the expression of apelin or its receptor is altered at the protein level. EXPERIMENTAL APPROACH:Radioligand binding studies were used to determine apelin recep...

journal_title：British journal of pharmacology

authors： Pitkin SL,Maguire JJ,Kuc RE,Davenport AP

更新日期：2010-08-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Lithocholic acid (LCA), the most toxic bile acid, induces cholestatic liver injury in rodents. We previously showed that LCA activates the oxidative stress-responsive nuclear factor (erythroid-2 like), factor 2 (Nrf2) in cultured liver cells, triggering adaptive responses that reduce cell injury....

journal_title：British journal of pharmacology

authors： Tan KP,Wood GA,Yang M,Ito S

更新日期：2010-11-01 00:00:00

abstract：:The modulatory effects of protein kinase C (PKC) on the activation of cytosolic phospholipase A2 (cPLA2) and adenylyl cyclase (AC) have recently been described. Since the signalling cascades associated with these events play critical roles in various functions of macrophages, we set out to investigate the crosstalk be...

journal_title：British journal of pharmacology

authors： Lin WW,Chen BC

更新日期：1998-12-01 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

abstract：:1. N(G)-monomethyl-L-arginine (L-NMMA) constricts human forearm resistance vasculature and selectively attenuates vasodilator responses to endothelium-dependent vasodilators. Incomplete inhibition of such responses could be due to an inadequate dose of L-NMMA or to NO-independent vasodilator mechanisms. 2. This study ...

journal_title：British journal of pharmacology

authors： Dawes M,Chowienczyk PJ,Ritter JM

更新日期：2001-11-01 00:00:00

abstract：:1. In the present study we tested the hypothesis that insulin-like growth factor-1 (IGF-1) modulates resting chloride conductance (G(Cl)) of rat skeletal muscle by activating a phosphatase and that the chloride channel, based on the activity of phosphorylating-dephosphorylating pathways, has different sensitivity to s...

journal_title：British journal of pharmacology

authors： De Luca A,Pierno S,Liantonio A,Camerino C,Conte Camerino D

更新日期：1998-10-01 00:00:00

abstract：:Low concentrations of several emetic, purgative or irritant drugs in the absence of added co-factors stimulated conversion of arachidonic acid to prostaglandin E2 and F2alpha by prostaglandin synthetase extracted from bull seminal vesicles (BSV prostaglandin synthetase). Their effect was dependent on concentration and...

journal_title：British journal of pharmacology

authors： Collier HO,McDonald-Gibson WJ,Saeed SA

更新日期：1976-10-01 00:00:00

abstract：:1. The series of cycloalcohols C6, C7, C8 and C10 have been used to probe the molecular dimensions of a variety of general anaesthetic target sites. 2. The general anaesthetic EC50 concentrations of the cycloalcohols were determined for tadpoles (Xenopus laevis). All of the cycloalcohols tested were found to be potent...

journal_title：British journal of pharmacology

authors： Curry S,Moss GW,Dickinson R,Lieb WR,Franks NP

更新日期：1991-01-01 00:00:00

abstract：:1. The role of alpha2-adrenoceptor (AR) subtypes in the modulation of acute nociception, motor behaviour and body temperature, has been investigated by determining the activity of the alpha2AR selective agonist dexmedetomidine (Dex) in mice devoid of individual alpha2AR subtypes through either a point (alpha2A) or nul...

journal_title：British journal of pharmacology

authors： Hunter JC,Fontana DJ,Hedley LR,Jasper JR,Lewis R,Link RE,Secchi R,Sutton J,Eglen RM

更新日期：1997-12-01 00:00:00

abstract：:Antidromic stimulation of sensory peripheral branches of the trigeminal system (mental nerve) leads to cutaneous vasodilatation and increases vascular permeability in the rat. Antidromic vasodilatation is observed only at high intensity stimulation (10 V, 15 Hz, 0.2 or 5 ms) supporting the participation of afferent C-...

journal_title：British journal of pharmacology

authors： Couture R,Cuello AC,Henry JL

更新日期：1985-03-01 00:00:00

abstract：:Conductance increases to gamma-aminobutyric acid (GABA) were recorded in the gm6b and opener muscle of the spiny lobsters, Panulirus interruptus and P. argus. GABA-evoked responses were insensitive to picrotoxin at concentrations as high as 5 X 10(-5) M. Some blockade by picrotoxin was observed at higher concentration...

journal_title：British journal of pharmacology

authors： Albert J,Lingle CJ,Marder E,O'Neil MB

更新日期：1986-04-01 00:00:00

abstract：:This paper is intended to assist pharmacologists to make the most of statistical analysis and avoid common errors. A scenario, in which an experimenter performed an experiment in two separate stages, combined the control groups for analysis and found some surprising results, is presented. The consequences of combined ...

journal_title：British journal of pharmacology

authors： Lew MJ

更新日期：2008-11-01 00:00:00

abstract：:1. Although anti-alpha(4) integrin mAbs reduce eosinophil accumulation in several models of allergic inflammation, it is not clear whether this occurs via a direct action to block eosinophil alpha(4) integrins or indirectly on another cell type. The role of alpha(4) integrins on the accumulation of (111)In-labelled eo...

journal_title：British journal of pharmacology

authors： Teixeira MM,Robinson MK,Shock A,Hellewell PG

更新日期：2001-01-01 00:00:00

abstract：:Previous studies have provided evidence for the presence on B cell membrane of adenosine receptors (P1-purinoceptors) of the A1-subtype which inhibit insulin secretion. In this work we have investigated the implication of a guanosine triphosphate (GTP) binding protein (G protein) in the A1 purinoceptor-induced inhibit...

journal_title：British journal of pharmacology

authors： Hillaire-Buys D,Gross R,Loubatières-Mariani MM,Ribes G

更新日期：1989-01-01 00:00:00

abstract：:Ligands targeting GPCRs can be categorized according to their intrinsic efficacy to trigger a specific, receptor-mediated response. A ligand endowed with the same level of efficacy as the endogenous agonist can be classified as a full agonist, whereas a compound that displays greater efficacy, that is, higher receptor...

journal_title：British journal of pharmacology

authors： Schrage R,De Min A,Hochheiser K,Kostenis E,Mohr K

更新日期：2016-10-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Conventional determination of agonist efficacy at G-protein coupled receptors is measured by stimulation of guanosine-5'-γ-thiotriphosphate (GTPγS) binding. We analysed the role of guanosine diphosphate (GDP) in the process of activation of the M₂ muscarinic acetylcholine receptor and provide evi...

journal_title：British journal of pharmacology

authors： Jakubík J,Janíčková H,El-Fakahany EE,Doležal V

更新日期：2011-03-01 00:00:00

abstract：:1. The effect of in vivo desensitization to leukotriene B4 (LTB4) on eosinophil infiltration in response to recombinant C5a was examined in guinea-pig skin. 2. LTB4 (10-300 ng) and C5a (1-10 micrograms) caused a dose-dependent increase in the levels of eosinophil peroxidase activity (a measure of eosinophil infiltrati...

journal_title：British journal of pharmacology

authors： Pettipher ER,Salter ED,Showell HJ

更新日期：1994-09-01 00:00:00

abstract：:1. We studied the effects of intracerebroventricular (i.c.v.) administration of prostanoid EP receptor ligands on vagally stimulated gastric acid secretion in rats anaesthetized with urethane. 2. Administration of misoprostol (EP3/EP2 receptor agonist) and sulprostone (EP3/EP1 receptor agonist) reduced vagally mediate...

journal_title：British journal of pharmacology

authors： Yokotani K,Okuma Y,Osumi Y

更新日期：1996-02-01 00:00:00

abstract：:1. Sigma (sigma) receptors have generated a great deal of interest on the basis of their possible roles in various pathologies, including cytoprotection. Although the exact function of sigma-1 (sigma(1)) receptors is not yet known, their role in the regulation of intracellular Ca(2+) levels and sterol biosynthesis, fu...

journal_title：British journal of pharmacology

authors： Klouz A,Sapena R,Liu J,Maurice T,Tillement JP,Papadopoulos V,Morin D

更新日期：2002-04-01 00:00:00

abstract：:1. The mechanism of the inhibitory effect of dehydroemetine on the heart was investigated using (a) the spontaneously contracting isolated guinea-pig atrial preparation and (b), the electrically driven left atrial preparation.2. Dehydroemetine decreased the rate and amplitude of contraction of spontaneously contractin...

journal_title：British journal of pharmacology

authors： Salako LA

更新日期：1972-12-01 00:00:00

abstract：:Since its discovery over 50 years ago, cAMP has been the archetypal second messenger introducing students to the concept of cell signalling at the simplest level. As explored in this review, however, there are many more facets to cAMP signalling than the path from Gs-coupled receptor to adenylyl cyclase (AC) to cAMP t...

journal_title：British journal of pharmacology

authors： Billington CK,Hall IP

更新日期：2012-05-01 00:00:00

abstract：:1. A grease-gap technique has been used to measure d.c. potentials, in response to the application of excitatory amino acids and electrical stimulation of the Schaffer collateral-commissural pathway, in the CA1 region of rat hippocampal slices. The actions of L-glutamate (L-Glu) have been quantified and compared to th...

journal_title：British journal of pharmacology

authors： Frenguelli BG,Blake JF,Brown MW,Collingridge GL

更新日期：1991-02-01 00:00:00