Effects of an intrathecally administered benzodiazepine receptor agonist, antagonist and inverse agonist on morphine-induced inhibition of a spinal nociceptive reflex.

abstract：:1. The effect of the potassium channel openers, NIP-121 and cromakalim, on agonist-induced relaxation of the guinea-pig isolated trachea was investigated and the results were compared with those in the epithelium-denuded trachea. 2. Tracheal strips were incubated with a potassium channel opener or vehicle for 30 min i...

journal_title：British journal of pharmacology

authors： Shikada K,Tanaka S

更新日期：1992-12-01 00:00:00

abstract：:1. Impairment of nitric oxide (NO)/cyclic GMP production and/or increased activities of thromboxane A2 (TXA2) and endothelin-1 (ET-1) have been associated with pulmonary hypertension. We have analysed the interactions of noradrenaline (NA), the TXA2-mimetic U46619 and ET-1 with the relaxation induced via cyclic GMP in...

journal_title：British journal of pharmacology

authors： Pérez-Vizcaíno F,Villamor E,Duarte J,Tamargo J

更新日期：1997-08-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Endothelial cell proliferation, migration and adhesion are necessary for the formation of new blood vessels. We reported previously that baicalein strongly inhibited proliferation of rat heart endothelial cells and here we assess effects on migration and adhesion of these cells. EXPERIMENTAL APP...

journal_title：British journal of pharmacology

authors： Hsieh YC,Hsieh SJ,Chang YS,Hsueh CM,Hsu SL

更新日期：2007-08-01 00:00:00

abstract：BACKGROUND AND PURPOSE:We previously demonstrated that chronic hyperinsulinaemia induced by drinking high levels of fructose augments adrenergic nerve-mediated vasoconstriction and suppresses vasodilatation mediated by calcitonin gene-related peptide (CGRP)-containing (CGRPergic) vasodilator nerves. In this study, the ...

journal_title：British journal of pharmacology

authors： Takatori S,Zamami Y,Yabumae N,Hanafusa N,Mio M,Egawa T,Kawasaki H

更新日期：2008-04-01 00:00:00

abstract：:1. In strips of human isolated detrusor muscle, the 5-hydroxytryptamine (5-HT) receptor (5-HT4) that mediates facilitation of neuromuscular cholinergic transmission was further characterized by using 5-HT and a series of ligands known for their 5-HT4 agonist (5-methoxytryptamine: 5-MeOT, cisapride, (R,S)-zacopride, BI...

journal_title：British journal of pharmacology

authors： Candura SM,Messori E,Franceschetti GP,D'Agostino G,Vicini D,Tagliani M,Tonini M

更新日期：1996-08-01 00:00:00

abstract：:1. The sinus node inhibitors UL FS 49 and DK-AH 269 reduce heart rate by slowing diastolic depolarization rate in the sino-atrial (SA) node, which might originate from the use-dependent blockade of a hyperpolarization-activated current If. A hyperpolarization-activated current Ih, which is present in many types of neu...

journal_title：British journal of pharmacology

authors： Raes A,Van de Vijver G,Goethals M,van Bogaert PP

更新日期：1998-10-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Evidence suggests that exercise decreases nicotine withdrawal symptoms in humans; however, the mechanisms mediating this effect are unclear. We investigated, in a mouse model, the effect of exercise intensity during chronic nicotine exposure on nicotine withdrawal severity, binding of α4β2*, α7 n...

journal_title：British journal of pharmacology

authors： Keyworth H,Georgiou P,Zanos P,Rueda AV,Chen Y,Kitchen I,Camarini R,Cropley M,Bailey A

更新日期：2018-06-01 00:00:00

abstract：:1 The synthesis of several butyrophenone analogues of haloperidol is described. 2 The effects of these compounds on alpha-adrenoceptors were evaluated by examining their ability to reduce alpha 1-stimulated K+ release from rat parotid slices and to displace [3H]-phentolamine from human platelet membrane alpha 2-adreno...

journal_title：British journal of pharmacology

authors： Atlas D,Friedman Z,Litvin Y,Steer ML

更新日期：1982-01-01 00:00:00

abstract：:Cartilage destruction is a key characteristic of arthritic disease, a process now widely established to be mediated by metzincins such as MMPs. Despite showing promise in preclinical trials during the 1990s, MMP inhibitors for the blockade of extracellular matrix turnover in the treatment of cancer and arthritis faile...

journal_title：British journal of pharmacology

authors： Wilkinson DJ,Arques MDC,Huesa C,Rowan AD

更新日期：2019-01-01 00:00:00

abstract：:1 delta'-trans-Tetrahydrocannabinol (THC) is more active orally in mice than previously thought, as cataleptic responses occur at doses from 0.06 mg/kg upwards, with peak activity at 2 to 4 h after dosing. These doses and peaks correspond well with the effects in man. 2 Comparison with chlorpromazine in mice shows tha...

journal_title：British journal of pharmacology

authors： Fairbairn JW,Pickens JT

更新日期：1979-11-01 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. We have characterized the 5-hydroxytryptamine (5-HT)-induced calcium signalling in endothelial cells from the human pulmonary artery. Using RT-PCR we show, that of all cloned G-protein coupled 5-HT receptors, these cells express only 5-HT1D beta, 5-HT2B and little 5-HT4 receptor mRNA. 2. In endothelial cells 5-HT i...

journal_title：British journal of pharmacology

authors： Ullmer C,Boddeke HG,Schmuck K,Lübbert H

更新日期：1996-03-01 00:00:00

abstract：:1. The effects of pinacidil on noradrenaline-induced tone, smooth muscle membrane potential and 42K- and 86Rb-efflux from isolated mesenteric resistance vessels (internal diameter 200 microns) of the rat have been studied. 2. Pinacidil (0.3-10 microM) produced concentration-dependent suppression of noradrenaline-induc...

journal_title：British journal of pharmacology

authors： Videbaek LM,Aalkjaer C,Mulvany MJ

更新日期：1988-09-01 00:00:00

abstract：:The mechanism of action of prostacyclin (PGI2) on isolated segments of guinea-pig terminal ileum was studied by recording the changes in isometric tension. In these preparations PGI2 (1 nM-1 microM) caused a concentration-dependent increase in muscle tension. This effect was rapid and short-lasting. PGI2-induced contr...

journal_title：British journal of pharmacology

authors： Gaion RM,Trento M

更新日期：1983-10-01 00:00:00

abstract：:An investigation of the effects of gamma-aminobutyric acid (GABA) and the selective GABAB receptor agonist, baclofen, on basal and stimulated adenosine 3':5'-cyclic monophosphate (cyclic AMP) levels in slices of rat cerebral cortex has been carried out. Neither GABA nor baclofen produced any significant change in basa...

journal_title：British journal of pharmacology

authors： Hill DR

更新日期：1985-01-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Pulmonary hypertension (PH) is a devastating disease characterized by increased pulmonary arterial pressure, which progressively leads to right-heart failure and death. A dys-regulated renin angiotensin system (RAS) has been implicated in the development and progression of PH. However, the role o...

journal_title：British journal of pharmacology

authors： Bruce E,Shenoy V,Rathinasabapathy A,Espejo A,Horowitz A,Oswalt A,Francis J,Nair A,Unger T,Raizada MK,Steckelings UM,Sumners C,Katovich MJ

更新日期：2015-05-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Volume-regulated anion channels (VRACs) play an important role in cell-volume regulation. alpha(1)-Adrenoceptor stimulation by phenylephrine (PE) suppressed the hypotonic activation of VRAC current in mouse ventricular cells and regulatory volume decrease (RVD) was also absent in PE-treated cells...

journal_title：British journal of pharmacology

authors： Ichishima K,Yamamoto S,Iwamoto T,Ehara T

更新日期：2010-09-01 00:00:00

abstract：:1. Rasagiline [N-propargyl-1R(+)-aminoindan], was examined for its monoamine oxidase (MAO) A and B inhibitor activities in rats together with its S(-)-enantiomer (TVP 1022) and the racemic compound (AGN-1135) and compared to selegiline (1-deprenyl). The tissues that were studied for MAO inhibition were the brain, live...

journal_title：British journal of pharmacology

authors： Youdim MB,Gross A,Finberg JP

更新日期：2001-01-01 00:00:00

abstract：BACKGROUND AND PURPOSE:While selective, bitter tasting, TAS2R agonists can relax agonist-contracted airway smooth muscle (ASM), their mechanism of action is unclear. However, ASM contraction is regulated by Ca²⁺ signalling and Ca²⁺ sensitivity. We have therefore investigated how the TAS2R10 agonists chloroquine, quinin...

journal_title：British journal of pharmacology

authors： Tan X,Sanderson MJ

更新日期：2014-02-01 00:00:00

abstract：:The effects of high (20 mM) concentrations of caffeine were studied on the transmembrane voltage and currents in rat single ventricular myocytes by the whole cell configuration of the patch clamp technique. Rapid application of caffeine released Ca2+ from the sarcoplasmic reticulum and induced a Ni(2+)-sensitive trans...

journal_title：British journal of pharmacology

authors： Varro A,Hester S,Papp JG

更新日期：1993-08-01 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. The mechanism underlying the anticataleptic properties of the atypical neuroleptic agent, clozapine, has been investigated in the rat. 2.The close structural analogues of clozapine, loxapine (0.1 mg kg(-1) s.c.) and iso-clozapine (1 and 3 mg kg(-1) s.c.) induced catalepsy in rats. In contrast, clozapine and the reg...

journal_title：British journal of pharmacology

authors： Kalkman HO,Neumann V,Hoyer D,Tricklebank MD

更新日期：1998-08-01 00:00:00

abstract：:1. We previously reported that substance P and insulin-like growth factor-1 (IGF-1) synergistically stimulate corneal epithelial wound healing in vitro and in vivo. We wished to identify which portion of the amino acid sequence of substance P might be responsible for this synergism. 2. Corneal epithelial migration was...

journal_title：British journal of pharmacology

authors： Nakamura M,Chikama T,Nishida T

更新日期：1999-05-01 00:00:00

abstract：:1. The effects of purinergic stimulation on action potential, force of contraction, 86Rb efflux and 45Ca uptake were investigated in guinea-pig left atria. 2. Adenosine exerted a negative inotropic effect which was antagonized by adenosine deaminase but enhanced by dipyridamole. 3. The negative inotropic effect of ade...

journal_title：British journal of pharmacology

authors： Jahnel U,Nawrath H

更新日期：1989-08-01 00:00:00

abstract：:1. The drug HA-966 (1-hydroxy-3-amino-pyrrolidone-2), which chemically resembles the cyclic form of GABA, has been studied for neuro-pharmacological properties and for effects on the catecholamine content of the corpus striatum.2. The acute effects on spontaneous behaviour of rodents included flaccid catalepsy and rev...

journal_title：British journal of pharmacology

authors： Bonta IL,De Vos CJ,Grijsen H,Hillen FC,Noach EL,Sim AW

更新日期：1971-11-01 00:00:00

abstract：:1. Previous studies demonstrated that elevation of the extracellular calcium concentration during a prolonged exposure to a high concentration of carbachol reverses the staurosporine-induced decrease in the extent of endplate resensitization in voltage-clamped snake twitch fibres. The present studies were designed to ...

journal_title：British journal of pharmacology

authors： Hardwick JC,Parsons RL

更新日期：1993-10-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Toll-like receptor 4 (TLR4) signalling contributes to inflammatory cardiovascular diseases, but its role in hypertension and the associated vascular damage is not known. We investigated whether TLR4 activation contributed to angiotensin II (AngII)-induced hypertension and the associated vascular ...

journal_title：British journal of pharmacology

authors： Hernanz R,Martínez-Revelles S,Palacios R,Martín A,Cachofeiro V,Aguado A,García-Redondo L,Barrús MT,de Batista PR,Briones AM,Salaices M,Alonso MJ

更新日期：2015-06-01 00:00:00

abstract：:1 The relationship of agonist efficacy to the rate of G protein-coupled receptor signaling desensitization is controversial. 2 Expressing inwardly rectifying potassium channels (GIRKs) in Xenopus oocytes, we have devised a signaling assay that clearly identifies CB1 cannabinoid receptor agonists with low intrinsic eff...

journal_title：British journal of pharmacology

authors： Luk T,Jin W,Zvonok A,Lu D,Lin XZ,Chavkin C,Makriyannis A,Mackie K

更新日期：2004-06-01 00:00:00

abstract：:The ability of gamma-aminobutyric acid (GABA) to affect the release of [3H]-dopamine in rat brain synaptosomes prepared from corpus striatum, frontal cortex and hypothalamus and prelabelled with the radioactive catecholamine in the presence of desipramine was examined. GABA (10-300 microM) increased in a concentration...

journal_title：British journal of pharmacology

authors： Bonanno G,Raiteri M

更新日期：1987-05-01 00:00:00

abstract：:1 Angiotensin I (AI) and AII elicited a dose-dependent potentiation of contractions by rat vas deferens produced by low frequency nerve stimulation without enhancing the contraction produced by exogenous noradrenaline. The AII-induced presynaptic potentiation was blocked by the specific antagonist cysteine(8)-AII.2 Th...

journal_title：British journal of pharmacology

authors： Johnson EM Jr,Marshall GR,Needleman P

更新日期：1974-08-01 00:00:00