Effect of vasoactive peptides on prostacyclin synthesis in man.

abstract：:1. Imidazoline binding sites have been reported to be present in the locus coeruleus (LC). To investigate the role of these sites in the control of LC neuron activity, we studied the effect of imidazolines using in vivo and in vitro single-unit extracellular recording techniques. 2. In anaesthetized rats, local (27 pm...

journal_title：British journal of pharmacology

authors： Ugedo L,Pineda J,Ruiz-Ortega JA,Martín-Ruiz R

更新日期：1998-12-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Certain 5-lipoxygenase (5-LO) inhibitors exhibit anti-carcinogenic activities against 5-LO overexpressing tumour types and cultured tumour cells. It has been proposed therefore that 5-LO products significantly contribute to tumour cell proliferation. To date, the relationship between the inhibito...

journal_title：British journal of pharmacology

authors： Fischer AS,Metzner J,Steinbrink SD,Ulrich S,Angioni C,Geisslinger G,Steinhilber D,Maier TJ

更新日期：2010-10-01 00:00:00

abstract：:1. Our study was aimed at investigating the duration of the bronchodilator action of the antimuscarinc drug glycopyrrolate compared to tiotropium and ipratropium. In the guinea-pig isolated trachea, the time (t1/2) necessary for a contractile response to carbachol (0.3 microM) to return to 50% recovery after washout o...

journal_title：British journal of pharmacology

authors： Villetti G,Bergamaschi M,Bassani F,Bolzoni PT,Harrison S,Gigli PM,Janni A,Geppetti P,Civelli M,Patacchini R

更新日期：2006-06-01 00:00:00

abstract：BACKGROUND AND PURPOSE:The use of tubulin-binding compounds, which act in part by inhibiting tumour angiogenesis, has become an integral strategy of tumour therapy. Recently, tubulysins were identified as a novel class of natural compounds of myxobacterial origin, which inhibit tubulin polymerization. As these compound...

journal_title：British journal of pharmacology

authors： Rath S,Liebl J,Fürst R,Ullrich A,Burkhart JL,Kazmaier U,Herrmann J,Müller R,Günther M,Schreiner L,Wagner E,Vollmar AM,Zahler S

更新日期：2012-11-01 00:00:00

abstract：:1. Salmeterol is a potent, selective and long acting beta 2-adrenoceptor agonist. In vitro, salmeterol exerts 'reassertion' relaxation of airways smooth muscle. Reassertion relaxation refers to the capacity of salmeterol to cause repeated functional antagonism of induced contraction when airway smooth muscle is interm...

journal_title：British journal of pharmacology

authors： Bergendal A,Lindén A,Skoogh BE,Gerspacher M,Anderson GP,Löfdahl CG

更新日期：1996-03-01 00:00:00

abstract：:1. Endothelin, a novel potent vasoconstrictor peptide produced by vascular endothelial cells stimulated anion secretion by a cultured secretory epithelium derived from the rat epididymis as measured by changes in short-circuit current (SCC). 2. Stimulation of the SCC was observed when endothelin was added to the basol...

journal_title：British journal of pharmacology

authors： Wong PY,Fu WO,Huang SJ

更新日期：1989-12-01 00:00:00

abstract：:The peptides, neurotensin, substance P, somatostatin, and bombesin, several analogues and fragments of neurotensin and compound 48/80, all caused the secretion of both endogenous 5-hydroxytryptamine (5-HT) and histamine. There was no differential effect of any of the secretagogues tested on the secretion of 5-HT and h...

journal_title：British journal of pharmacology

authors： Carraway RE,Cochrane DE,Granier C,Kitabgi P,Leeman E,Singer EA

更新日期：1984-02-01 00:00:00

abstract：:Spontaneous inhibitory postsynaptic currents (i.p.s.cs) were recorded in voltage-clamped CA1 neurones in rat hippocampal slices. The exponential decay of i.p.s.cs was prolonged by concentrations of sodium pentobarbitone as low as 50 microM. With concentrations up to 100 microM, there was no change in the amplitude or ...

journal_title：British journal of pharmacology

authors： Gage PW,Robertson B

更新日期：1985-07-01 00:00:00

abstract：:The dependence of neurotransmitter secretion on external calcium ions during development of opiate tolerance in the mouse vas deferens was studied. The writhing response of mice to an i.p. injection of acetylcholine was inhibited by morphine. Reversal of this antinociceptive effect of morphine during chronic treatment...

journal_title：British journal of pharmacology

authors： Einstein R,Lavidis NA

更新日期：1984-12-01 00:00:00

abstract：:The monamine oxidase (MAO) inhibitors harmaline, tranylcypromine, deprenyl, clorgyline and iproniazid were injected intraperitoneally for five days to rabbits at doses that produced significant MAO inhibition. The first three inhibitors raised the concentrations of pyruvate and lactate in blood, decreased the activity...

journal_title：British journal of pharmacology

authors： Ali BH

更新日期：1985-12-01 00:00:00

abstract：:1 Noradrenaline and 28 imidazolidine (clonidine-like) and imidazoline (oxymetazoline-like) compounds with various phenyl ring substituents have been examined for their ability to inhibit responses to transmural stimulation and exogenous acetylcholine in ileal preparations from reserpine-treated guinea-pigs.2 The bathi...

journal_title：British journal of pharmacology

authors： Malta E,Raper C,Tawa PE

更新日期：1981-06-01 00:00:00

abstract：:1. This study describes attempts to compare prostacyclin (IP-) receptors in human, pig, horse, rabbit and rat platelets and in circular muscle of human, rabbit and dog mesenteric and pig gastroepiploic arteries. Three stable prostacyclin analogues, iloprost, cicaprost and 6a-carba-prostacyclin (6a-carba-PGI2) and a pr...

journal_title：British journal of pharmacology

authors： Armstrong RA,Lawrence RA,Jones RL,Wilson NH,Collier A

更新日期：1989-07-01 00:00:00

abstract：:1 The present study comprised treatment of healthy male rats with Delta(9)-tetrahydrocannabinol (THC, 10 mg kg(-1), p.o.), and combinations of THC with benzoflavone moiety (BZF, 10 and 20 mg kg(-1), p.o.) isolated from Passiflora incarnata Linneaus, over a period of 30 days. 2 Upon 30-days chronic administrations, the...

journal_title：British journal of pharmacology

authors： Dhawan K,Sharma A

更新日期：2003-01-01 00:00:00

abstract：:1. Nociceptin, the endogenous ORL(1) receptor agonist inhibited the motor response to electrical-field stimulation in the rat anococcygeus muscle. This effect was characterized using the peptide ligands acetyl-Arg-Tyr-Tyr-Arg-Trp-Lys-NH(2) (Ac-RYYRWK-NH(2)), acetyl-Arg-Tyr-Tyr-Arg-Ile-Lys-NH(2) (Ac-RYYRIK-NH(2)) and [...

journal_title：British journal of pharmacology

authors： Ho M,Corbett AD,McKnight AT

更新日期：2000-09-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Cigarette smoke is a major cause for chronic obstructive pulmonary disease (COPD). Andrographolide is an active biomolecule isolated from the plant Andrographis paniculata. Andrographolide has been shown to activate nuclear factor erythroid-2-related factor 2 (Nrf2), a redox-sensitive antioxidant...

journal_title：British journal of pharmacology

authors： Guan SP,Tee W,Ng DS,Chan TK,Peh HY,Ho WE,Cheng C,Mak JC,Wong WS

更新日期：2013-04-01 00:00:00

abstract：:1 The cardiovascular effects of intravenous desipramine (0.03 and 0.1 mg/kg), maprotiline (0.5 mg/kg), mianserin (1.0 and 3.0 mg/kg) and phentolamine (0.25 mg/kg) were examined and compared in pithed rats. Several experimental procedures were used in order to distinguish between the effects of the compounds on cardiac...

journal_title：British journal of pharmacology

authors： Cavero I,Gomeni R,Lefèvre-Borg F,Roach AG

更新日期：1980-02-01 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. Temperature, oxygen consumption, electromyographic activity, plasma non-esterified fatty acids and blood sugar were estimated in conscious unrestrained young chickens under conditions of thermoneutrality (31 degrees C) and below thermoneutrality (16 degrees C). In some chickens carotid arterial pressure was also re...

journal_title：British journal of pharmacology

authors： Allen DJ,Garg KN,Marley E

更新日期：1970-04-01 00:00:00

abstract：:1. LP-805, 8-tert-butyl-6,7-dihydropyrrolo-[3,2-e]-5-methylpyrazolo- [1,5a]-pyrimidine-3-carbonitrile, is a newly synthesized potent vasodilator. To investigate the cellular mechanisms of vasorelaxation induced by LP-805, we simultaneously determined the effects of LP-805 on cytosolic Ca2+ concentrations ([Ca2+]i) and...

journal_title：British journal of pharmacology

authors： Ushio-Fukai M,Hirano K,Kanaide H

更新日期：1994-12-01 00:00:00

abstract：:Ischaemia is amongst the leading causes of death. Despite this importance, there are only a few therapeutic approaches to protect from ischaemia-reperfusion injury (IRI). In experimental studies, the amino acid glycine effectively protected from IRI. In the prevention of IRI by glycine in cells and isolated perfused o...

journal_title：British journal of pharmacology

authors： Petrat F,Boengler K,Schulz R,de Groot H

更新日期：2012-04-01 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：:1. Diabetes mellitus produces marked abnormalities in motor nerve conduction, but the mechanism is not clear. In the present study we hypothesized that in the streptozotocin (STZ)-induced diabetic rat impaired vasodilator function is associated with reduced endoneural blood flow (EBF) which may contribute to nerve dys...

journal_title：British journal of pharmacology

authors： Terata K,Coppey LJ,Davidson EP,Dunlap JA,Gutterman DD,Yorek MA

更新日期：1999-10-01 00:00:00

abstract：:1. It has been suggested that the vasoconstrictor response to neuropeptide Y (NPY) is located in the microvessels and that it increases with reduced vessel diameter. The aim of the present study was to analyse quantitatively, on the cat gastrocnemius muscle preparation in vivo, the effects of NPY on total regional vas...

journal_title：British journal of pharmacology

authors： Ekelund U,Erlinge D

更新日期：1997-02-01 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：:1. The effects of long-term treatment with trandolapril, an angiotensin I-converting enzyme inhibitor, on exercise capacity of rats with chronic heart failure (CHF) following coronary artery ligation were examined. CHF was developed by 8 weeks after the coronary artery ligation. 2. The running time of rats with CHF in...

journal_title：British journal of pharmacology

authors： Yamaguchi F,Kawana K,Tanonaka K,Kamano I,Igarashi T,Gen E,Fujimoto Y,Maki T,Sanbe A,Nasa Y,Takeo S

更新日期：1999-04-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Cytochrome P450 (CYP, P450) 3A4 is involved in the metabolism of 50% of drugs and its catalytic activity in vivo is not explained only by hepatic expression levels. We previously demonstrated that UDP-glucuronosyltransferase (UGT) 2B7 suppressed CYP3A4 activity through an interaction. In the pres...

journal_title：British journal of pharmacology

authors： Miyauchi Y,Tanaka Y,Nagata K,Yamazoe Y,Mackenzie PI,Yamada H,Ishii Y

更新日期：2020-03-01 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：:1. The binding of 1,3-[3H]-dipropyl-8-cyclopentylxanthine ([3H]-DPCPX), an antagonist radioligand selective for adenosine A1 receptors, was studied in rat duodenum, colon muscularis mucosae and longitudinal muscle, urinary bladder and vasa deferentia. 2. [3H]-DPCPX bound with high affinity to a single site in all memb...

journal_title：British journal of pharmacology

authors： Peachey JA,Hourani SM,Kitchen I

更新日期：1994-12-01 00:00:00

abstract：:1. The effects of acetylcholine (ACh) on membrane potential, relaxation and cyclic GMP levels were compared to the NO donor L-nitrosocysteine (Cys-NO) in segments of guinea-pig coronary artery. 2. ACh and Cys-NO produced concentration-dependent relaxations of muscles contracted with the H1 receptor agonist, 2-(2-amino...

journal_title：British journal of pharmacology

authors： Eckman DM,Weinert JS,Buxton IL,Keef KD

更新日期：1994-04-01 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