The pharmacology of sheep tracheobronchial muscle: a relaxant effect of histamine on the isolated bronchi.

abstract：:Two-state and operational models of both agonism and allosterism are compared to identify and characterize common pharmacological parameters. To account for the receptor-dependent basal response, constitutive receptor activity is considered in the operational models. By arranging two-state models as the fraction of ac...

journal_title：British journal of pharmacology

authors： Roche D,Gil D,Giraldo J

更新日期：2013-07-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Cloxyquin (5-cloroquinolin-8-ol) has been described as an activator of TRESK (K2P 18.1, TWIK-related spinal cord K+ channel) background potassium channel. We have examined the specificity of the drug by testing several K2P channels. We have investigated the mechanism of cloxyquin-mediated TRESK a...

journal_title：British journal of pharmacology

authors： Lengyel M,Dobolyi A,Czirják G,Enyedi P

更新日期：2017-07-01 00:00:00

abstract：:1. We have determined which cytokines induce and modulate the production of the chemokine interleukin-8 (IL-8) by the human colonic epithelial cell line HT-29. 2. Growth arrested cell cultures were stimulated with the human recombinant cytokines interleukin-1 alpha (IL-1 alpha), tumour necrosis factor-alpha (TNF-alpha...

journal_title：British journal of pharmacology

authors： Kolios G,Robertson DA,Jordan NJ,Minty A,Caput D,Ferrara P,Westwick J

更新日期：1996-09-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Cannabis extracts and several cannabinoids have been shown to exert broad anti-inflammatory activities in experimental models of inflammatory CNS degenerative diseases. Clinical use of many cannabinoids is limited by their psychotropic effects. However, phytocannabinoids like cannabidiol (CBD), d...

journal_title：British journal of pharmacology

authors： Kozela E,Lev N,Kaushansky N,Eilam R,Rimmerman N,Levy R,Ben-Nun A,Juknat A,Vogel Z

更新日期：2011-08-01 00:00:00

abstract：:The discovery of an additional duplicated alpha-2 adrenoceptor subtype in the zebrafish raises a pesky nomenclature issue, as well as questions about the functions of the alpha-2 adrenoceptors in the zebrafish and how many alpha-2 receptors does an organism really need. ...

journal_title：British journal of pharmacology

authors： Bylund DB

更新日期：2005-01-01 00:00:00

abstract：:The rat isolated right atrium (frequency response) and progesterone-treated rat uterus (relaxation) were used to examine the beta 1- and beta 2-adrenoceptor stimulatory effects of alprenolol, oxprenolol and pindolol. In addition, the beta 1-adrenoceptor stimulatory effect of practolol was studied in the right atrium. ...

journal_title：British journal of pharmacology

authors： Abrahamsson T

更新日期：1986-04-01 00:00:00

abstract：:In recent years there has been a growing recognition of the influence of sex on brain structure and function, and in relation, on the susceptibility, prevalence and response to treatment of psychiatric disorders. Most theories and descriptions of the effects of sex on the brain are dominated by an analogy to the curre...

journal_title：British journal of pharmacology

authors： Joel D,Yankelevitch-Yahav R

更新日期：2014-10-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Voltage-operated sodium channels constitute major target sites for local anaesthetic-like action. The clinical use of local anaesthetics is still limited by severe side effects, in particular, arrhythmias and convulsions. These side effects render the search for new local anaesthetics a matter of...

journal_title：British journal of pharmacology

authors： Haeseler G,Karst M,Foadi N,Gudehus S,Roeder A,Hecker H,Dengler R,Leuwer M

更新日期：2008-09-01 00:00:00

abstract：:Bradykinin, angiotensin II, arginine vasopressin (AVP) or des-amino-D-arginine vasopressin (DDAVP) were administered by intravenous infusion to 10 healthy men. The concentration of 6-oxo-prostaglandin F1 alpha (6-oxo-PGF1 alpha), the stable hydrolysis product of prostacyclin (PGI2), was measured in plasma using gas ch...

journal_title：British journal of pharmacology

authors： Barrow SE,Dollery CT,Heavey DJ,Hickling NE,Ritter JM,Vial J

更新日期：1986-01-01 00:00:00

abstract：:1. In order to explore whether 5-HT4 receptor subtypes exist, we have characterized further the 5-HT4 receptor that mediates tachycardia in the piglet isolated right atrium. All experiments were carried out in the presence of propranolol (400 nM) and cocaine (6 microM). We used tryptamine derivatives, substituted benz...

journal_title：British journal of pharmacology

authors： Medhurst AD,Kaumann AJ

更新日期：1993-11-01 00:00:00

abstract：:1 The influence of dopamine receptor agonists on gastric acid secretion stimulated by thyrotropin-releasing hormone (TRH) was studied in the perfused stomach of anaesthetized rats. 2 Intraventricular TRH produced a dose-dependent stimulation of basal gastric acid secretion. 3 Pretreatment with apomorphine, bromocripti...

journal_title：British journal of pharmacology

authors： Maeda-Hagiwara M,Watanabe K

更新日期：1983-05-01 00:00:00

abstract：:1 The effect of local elevation of leucocyte cyclic adenosine 3',5'-monophosphate (cyclic AMP) content on the continued migration of leucocytes to a site of acute inflammation was studied in the pleural cavity of rats. 2 Leucocyte cyclic AMP levels were elevated by injecting with the irritant into the pleural cavity d...

journal_title：British journal of pharmacology

authors： Deporter DA

更新日期：1977-06-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Pharmacokinetic/pharmacodynamic (PK/PD) models are necessary to relate the degree of drug exposure in vivo to target blockade and pharmacological efficacy. This manuscript describes a murine agonist-induced CXCR3 receptor internalization assay and demonstrates its utility for PK/PD analyses. EXP...

journal_title：British journal of pharmacology

authors： Jopling LA,Watt GF,Fisher S,Birch H,Coggon S,Christie MI

更新日期：2007-12-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Angiotensin AT1 receptor antagonists induce weight loss; however, the mechanism underlying this phenomenon is unknown. The Mas receptor agonist angiotensin-(1-7) is a metabolite of angiotensin I and of angiotensin II . As an agonist of Mas receptors, angiotensin-(1-7) has beneficial cardiovascula...

journal_title：British journal of pharmacology

authors： Schuchard J,Winkler M,Stölting I,Schuster F,Vogt FM,Barkhausen J,Thorns C,Santos RA,Bader M,Raasch W

更新日期：2015-08-01 00:00:00

abstract：:Administration of catechol to rats anaesthetized with urethane produces a central excitatory state during which an EMG consisting of three temporally distinct components (M1, M2 and M3) can be recorded from forelimb and hindlimb muscles to electrical stimulation of cutaneous afferents. The probability of occurrence of...

journal_title：British journal of pharmacology

authors： Dewhurst DG

更新日期：1984-09-01 00:00:00

abstract：:1. It has previously been shown that the hypoglycaemic drug (-)-AZ-DF-265 stimulates insulin release from mouse islets; in the presence of 3 mM glucose it also inhibits 86Rb-efflux from 86Rb-loaded islets. Based on these data we tested the hypothesis that (-)-AZ-DF-265 inhibits ATP-sensitive potassium channels. 2. We ...

journal_title：British journal of pharmacology

authors： Ronner P,Hang TL,Kraebber MJ,Higgins TJ

更新日期：1992-06-01 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：:1. The effects of brevetoxin-B, a red tide toxin, on motor nerve terminal activity were assessed on mouse triangularis sterni nerve-muscle preparations. The perineural waveforms were recorded with extracellular electrodes placed in the perineural sheaths of motor nerves. 2. At 0.11 microM, brevetoxin-B increased the c...

journal_title：British journal of pharmacology

authors： Tsai MC,Chen ML

更新日期：1991-05-01 00:00:00

abstract：:The diterpene, forskolin, is shown to produce a concentration-dependent, increase in short circuit current in two epithelial preparations, amphibian skin and rat colon. In the amphibian tissue the increase is sensitive to amiloride and due to an increase in electrogenic transepithelial sodium transport towards the ser...

journal_title：British journal of pharmacology

authors： Cuthbert AW,Spayne JA

更新日期：1982-05-01 00:00:00

abstract：:Endothelin-1 (ET-1) is a peptide hormone produced within the myocardium which may modulate myocardial contractility in a paracrine-autocrine fashion. In the majority of species, ET-1 has a direct positive inotropic effect on the myocardium that involves both increased myofilament Ca(2+) sensitivity and increased Ca(2+...

journal_title：British journal of pharmacology

authors： James AF

更新日期：2007-10-01 00:00:00

abstract：BACKGROUND AND PURPOSE:NO-mediated, endothelium-dependent relaxations of isolated arteries are blunted by ageing and high-fat diets, as well as by apolipoprotein E deletion. The present study was designed to test the hypothesis that apolipoprotein E deletion impairs endothelium-dependent responses to prostacyclin (IP) ...

journal_title：British journal of pharmacology

authors： Cheng Y,Vanhoutte PM,Leung SWS

更新日期：2018-09-01 00:00:00

abstract：:1. Despite the observation of pharmacological responses to neuropeptide Y (NPY) in mammalian kidneys, there are species differences in the ease with which specific NPY binding sites can be demonstrated; we have investigated whether this can be explained by differential metabolism of NPY by a membrane-bound peptidase. ...

journal_title：British journal of pharmacology

authors： Price JS,Kenny AJ,Huskisson NS,Brown MJ

更新日期：1991-10-01 00:00:00

abstract：:1. We previously showed that chronic exposure to aspirin (100 mg kg-1 daily, by mouth) is effective in preventing the onset of hypertension in young (28-84 day old) spontaneously hypertensive rats (SHRs). This is contrary to what others have reported using older SHRs. 2. Renal prostaglandin F2 alpha was also reduced i...

journal_title：British journal of pharmacology

authors： Tuttle RS,Yager J,Northrup N

更新日期：1988-07-01 00:00:00

abstract：:1. Thoracic aortae, isolated from rats supplemented with dietary vitamin E after vitamin E deficiency, were analysed for changes in vascular reactivity. 2. Following 4 or 12 months of dietary vitamin E deficiency, endothelium-dependent vasodilator responses to acetylcholine were significantly impaired. However, when a...

journal_title：British journal of pharmacology

authors： Rubino A,Burnstock G

更新日期：1994-06-01 00:00:00

abstract：:1. Protein phosphorylation is involved in the induction of nitric oxide synthase II (NOS II, iNOS) in several types of animal cells. Here we have investigated the possible involvement of major protein kinases in the induction of NOS II expression in human DLD-1 cells. 2. In DLD-1 cells, interferon--gamma alone induced...

journal_title：British journal of pharmacology

authors： Kleinert H,Euchenhofer C,Fritz G,Ihrig-Biedert I,Förstermann U

更新日期：1998-04-01 00:00:00

abstract：BACKGROUND AND PURPOSE:The chemokine receptor CXCR3 directs migration of T-cells in response to the ligands CXCL9/Mig, CXCL10/IP-10 and CXCL11/I-TAC. Both ligands and receptors are implicated in the pathogenesis of inflammatory disorders, including atherosclerosis and rheumatoid arthritis. Here, we describe the molecul...

journal_title：British journal of pharmacology

authors： Nedjai B,Li H,Stroke IL,Wise EL,Webb ML,Merritt JR,Henderson I,Klon AE,Cole AG,Horuk R,Vaidehi N,Pease JE

更新日期：2012-06-01 00:00:00

abstract：:BACKGROUND AND PURPOSE The transepithelial absorption of Na(+) in the lungs is crucial for the maintenance of the volume and composition of epithelial lining fluid. The regulation of Na(+) transport is essential, because hypo- or hyperabsorption of Na(+) is associated with lung diseases such as pulmonary oedema or cys...

journal_title：British journal of pharmacology

authors： Althaus M,Urness KD,Clauss WG,Baines DL,Fronius M

更新日期：2012-07-01 00:00:00

abstract：:1. The aim of this study was to characterize the pharmacological profile of the GABA(B1)/GABA(B2) heterodimeric receptor expressed in Chinese hamster ovary (CHO) cells. We have compared receptor binding affinity and functional activity for a series of agonists and antagonists. 2. The chimeric G-protein, G(qi5), was us...

journal_title：British journal of pharmacology

authors： Wood MD,Murkitt KL,Rice SQ,Testa T,Punia PK,Stammers M,Jenkins O,Elshourbagy NA,Shabon U,Taylor SJ,Gager TL,Minton J,Hirst WD,Price GW,Pangalos M

更新日期：2000-11-01 00:00:00

abstract：:1 Weighed stripped vasa deferentia were incubated in Holman's solution containing (a) [14C]-sorbitol 0.014 mm, (b) [3H]-noradrenaline ([3H]-NA) 12.31 nM, (c) [3H]-tetrahydrocannabinol ([3H]-delta1-THC) 1 mug/ml for 5, 10, 20 and 30 minutes. 2 Tissues were washed, dissolved in Protosol, counted by standard scintillatio...

journal_title：British journal of pharmacology

authors： Egan SM,Graham JD,Lewis MJ

更新日期：1976-04-01 00:00:00

abstract：:1 Dose-related increases in airways resistance (Raw) and decreases in dynamic lung compliance (Cdyn) were recorded in guinea-pigs and rats following intravenous injection of propranolol and of the cardioselective beta-adrenoceptor blocking drugs, atenolol and practolol. 2 The bronchoconstriction reached a peak in 2 to...

journal_title：British journal of pharmacology

authors： Maclagan J,Ney UM

更新日期：1979-07-01 00:00:00