Adrenoceptors in the human foetal small intestine.

abstract：:1. Vasospasm of arterial conduits used for coronary artery surgery is an important cause of graft failure and is likely to result partly from raised levels of vasoconstrictor substances such as thromboxane A(2) and endothelin-1. Our aim was to find pharmacological agents that could prevent agonist-induced vasospasm. 2...

journal_title：British journal of pharmacology

authors： Batchelor TJ,Sadaba JR,Ishola A,Pacaud P,Munsch CM,Beech DJ

更新日期：2001-01-01 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. In a first series of experiments, male Long Evans rats were chronically instrumented for the measurement of internal carotid blood flow and systemic arterial blood pressure; cardiovascular changes were assessed during and after 30 min infusions of human alpha-calcitonin gene-related peptide (CGRP) (0.06 and 0.6 nmo...

journal_title：British journal of pharmacology

authors： Gardiner SM,Compton AM,Bennett T,Kemp PA,Ney U

更新日期：1990-04-01 00:00:00

abstract：:In non-allergic subjects, histamine induced a reduction of minimal nasal cross-sectional area (Amin) and an increase in albumin release into nasal lavage. The effect of histamine on albumin release was inhibited by pretreatment with NG-nitro-L-arginine methyl ester (L-NAME), 1 mumol but not by D-NAME, 1 mumol. L-NAME,...

journal_title：British journal of pharmacology

authors： Dear JW,Scadding GK,Foreman JC

更新日期：1995-09-01 00:00:00

abstract：:1. The effects of the nitric oxide synthase inhibitor NG-nitro-L-arginine methyl ester (L-NAME) on vasoconstrictor responses to transmural electrical nerve stimulation and noradrenaline were examined in the rabbit isolated renal artery with and without an intact endothelium. In addition, the effect of removing the end...

journal_title：British journal of pharmacology

authors： Vials AJ,Crowe R,Burnstock G

更新日期：1997-05-01 00:00:00

abstract：:1 Sera of rabbits immunized against a nocotinic receptor-rich fraction, obtained from the electric organ of Torpedo marmorata, were tested for their pharmacological activity on different in vitro preparations. 2 Sera containing antibodies against the nicotinic receptor blocked neuromuscular transmission in the phrenic...

journal_title：British journal of pharmacology

authors： Berti F,Clementi F,Conti-Tronconi B,Folco GC

更新日期：1976-05-01 00:00:00

abstract：:Endothelin constricted human isolated cerebral arteries in a concentration-dependent manner. The maximal tension developed, as well as EC50 values were similar in arteries with and without endothelium. Removal of extracellular calcium or addition of the calcium antagonist nicardipine (10(-6)M), attenuated but did not ...

journal_title：British journal of pharmacology

authors： de Aguilera EM,Irurzun A,Vila JM,Aldasoro M,Galeote MS,Lluch S

更新日期：1990-03-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Caffeine is one of the most commonly used psychoactive substances. Circadian rhythms consist of the main suprachiasmatic nucleus (SCN) clocks and peripheral clocks. Although caffeine lengthens circadian rhythms and modifies phase changes in SCN-operated rhythms, the effects on caffeine on the pha...

journal_title：British journal of pharmacology

authors： Narishige S,Kuwahara M,Shinozaki A,Okada S,Ikeda Y,Kamagata M,Tahara Y,Shibata S

更新日期：2014-12-01 00:00:00

abstract：:The effects of adenosine triphosphate (ATP), adenosine diphosphate (ADP), adenosine monophosphate (AMP), and adenosine on compound action potentials were investigated in de-sheathed frog-sciatic nerve preparations. ATP and ADP but not adenosine antagonized the inhibitory action of tetrodotoxin (TTX) on nerve conductio...

journal_title：British journal of pharmacology

authors： Ribeiro JA,Sebastião AM

更新日期：1984-02-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Fibrosis, a pathological accumulation of collagen in tissues, represents a major global disease burden. Effective characterization of potential antifibrotic drugs has been constrained by poor formation of the extracellular matrix in vitro, due to tardy procollagen processing by collagen C-protein...

journal_title：British journal of pharmacology

authors： Chen CZ,Peng YX,Wang ZB,Fish PV,Kaar JL,Koepsel RR,Russell AJ,Lareu RR,Raghunath M

更新日期：2009-11-01 00:00:00

abstract：:1 The effects of the prostaglandin synthetase inhibitor, indomethacin and the prostaglandin antagonist SC-19220 (1-acetyl-2-[8-chloro-10,11-dihydrodibenz (b,f) (1,4)oxazepine-10-carbonyl] hydrazine), were examined on the tone of the guinea-pig isolated tracheal preparation and on the responses of the preparation to pr...

journal_title：British journal of pharmacology

authors： Farmer JB,Farrar DG,Wilson J

更新日期：1974-12-01 00:00:00

abstract：:1. Pregnancy is characterized by a decrease in systemic vascular resistance and a blunting of the angiotensin II (AII) pressor response. We studied the role of nitric oxide (NO) and prostanoids in these vascular changes of pregnancy in anaesthesized, ganglion blocked non-pregnant and pregnant rats. 2. Inhibition of NO...

journal_title：British journal of pharmacology

authors： Nathan L,Cuevas J,Chaudhuri G

更新日期：1995-03-01 00:00:00

abstract：:1. The responses of bladder strips from control, streptozotocin-diabetic, and sucrose-drinking rats to electrical field stimulation were investigated. Sucrose-drinking rats were included as additional controls because they have enlarged bladders as a result of non-diabetic diuresis. 2. Bladder strips from diabetic rat...

journal_title：British journal of pharmacology

authors： Tammela TL,Briscoe JA,Levin RM,Longhurst PA

更新日期：1994-09-01 00:00:00

abstract：:1. A series of opioid agonists, antagonists and their (+)-stereoisomers were tested for antiarrhythmic activity in the rat coronary artery occlusion model. 2. Naloxone (0.01-2 mg kg-1) significantly reduced the incidence and severity of cardiac arrhythmias, in accordance with previous published studies. 3. The non-opi...

journal_title：British journal of pharmacology

authors： Sarne Y,Flitstein A,Oppenheimer E

更新日期：1991-03-01 00:00:00

abstract：:1. FPL 67156 (6-N,N-diethyl-beta, gamma-dibromomethylene-D-ATP), is a newly synthesized analogue of ATP. 2. In a rabbit isolated tracheal epithelium preparation, measuring P2U-purinoceptor-dependent chloride secretion, FPL 67156 was discovered to potentiate the responses to UTP but not those to ATP-gamma-S. UTP agonis...

journal_title：British journal of pharmacology

authors： Crack BE,Pollard CE,Beukers MW,Roberts SM,Hunt SF,Ingall AH,McKechnie KC,IJzerman AP,Leff P

更新日期：1995-01-01 00:00:00

abstract：:We examined the mechanisms underlying leukotriene D4- (LTD4) induced constriction of human small (300 - 500 micron i.d.) bronchioles, and the effect of LTD4 on ion currents and Ca2+ transients in smooth muscle cells (SMC) isolated from these bronchioles. LTD4 caused a concentration-dependent bronchoconstriction with a...

journal_title：British journal of pharmacology

authors： Snetkov VA,Hapgood KJ,McVicker CG,Lee TH,Ward JP

更新日期：2001-05-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Highly vascularized ovarian carcinoma secretes the putative endocannabinoid and GPR55 agonist, L-α-lysophosphatidylinositol (LPI), into the circulation. We aimed to assess the involvement of this agonist and its receptor in ovarian cancer angiogenesis. EXPERIMENTAL APPROACH:Secretion of LPI by t...

journal_title：British journal of pharmacology

authors： Hofmann NA,Yang J,Trauger SA,Nakayama H,Huang L,Strunk D,Moses MA,Klagsbrun M,Bischoff J,Graier WF

更新日期：2015-08-01 00:00:00

abstract：:The effects of N-(cyclopropylmethyl)-19-isopentylnororvinol hydrochloride (M320) on urine excretion by rats were investigated. Further studies, using rabbit isolated vas deferens, investigated its interactions with kappa-opiate receptors. The output of urine for a 2 h period after M320, administered subcutaneously to ...

journal_title：British journal of pharmacology

authors： Abrahams JM,Boura AL,Evans RG,Johnston CI,Olley JE

更新日期：1986-12-01 00:00:00

abstract：:The effect of propranolol, a beta-adrenoceptor blocking agent, has been investigated on gastric acid secretion in pylorus and cardiac-ligated rats. Compared to the control group, propranolol significantly diminished the gastric acid secretion, and inhibited the formation of gastric ulceration. ...

journal_title：British journal of pharmacology

authors： Danhof IE,Geumei A

更新日期：1972-09-01 00:00:00

abstract：:The last five years have witnessed a remarkable resurgence of interest in myocardial reperfusion injury. Reperfusion is absolutely essential to salvage ischaemic myocardium but experimental and clinical studies show that reperfusion-associated injury may mask the full benefits of prompt reperfusion in acute myocardial...

journal_title：British journal of pharmacology

authors： Baxter GF,Burley DS

更新日期：2008-01-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Due to their potent bronchodilator properties, beta(2)-adrenoceptor agonists are a mainstay of therapy in asthma. However, the effects of beta(2)-adrenoceptor agonists on inflammation are less clear. Accordingly, we have investigated the effects of beta(2)-adrenoceptor agonists on inflammatory me...

journal_title：British journal of pharmacology

authors： Holden NS,Rider CF,Bell MJ,Velayudhan J,King EM,Kaur M,Salmon M,Giembycz MA,Newton R

更新日期：2010-05-01 00:00:00

abstract：BACKGROUND AND PURPOSE:The anti-cancer agent [Arg(6), D-Trp(7,9), N(me)Phe(8)]-substance P (6-11) (SP-G) modulates gastrin releasing peptide (GRP) and arginine vasopressin signalling in small cell lung cancer cells leading to growth arrest and apoptosis. We have shown that SP-G acts as a biased agonist at GRP receptors...

journal_title：British journal of pharmacology

authors： MacKinnon AC,Tufail-Hanif U,Wheatley M,Rossi AG,Haslett C,Seckl M,Sethi T

更新日期：2009-01-01 00:00:00

abstract：:1. We studied the ability of nitric oxide (NO) to physiologically antagonize endothelin-1 (ET-1) induced constrictions in human internal mammary artery (IMA). We also investigated the hypothesis that NO interacts directly with ET-receptor binding in human heart and aorta. 2. ET-1 potently contracted IMA (EC(50) 6.86 n...

journal_title：British journal of pharmacology

authors： Wiley KE,Davenport AP

更新日期：2001-01-01 00:00:00

abstract：:1. It has recently been shown that both alpha(1)- and alpha(2)-adrenoceptors mediate vasoconstriction in the canine external carotid circulation. The present study set out to identify the specific subtypes (alpha(1A), alpha(1B) and alpha(1D) as well as alpha(2A), alpha(2B) and alpha(2C)) mediating the above response. ...

journal_title：British journal of pharmacology

authors： Willems EW,Valdivia LF,Saxena PR,Villalón CM

更新日期：2001-03-01 00:00:00

abstract：:Effects of isoprenaline (Isop) on the contractile properties of the smooth muscle cells of cat trachea were investigated using intact and chemically skinned muscle preparations and an isometric tension recording method. In the intact muscle preparations, Isop 3 X 10(-10) or 3 X 10(-9) M significantly suppressed the am...

journal_title：British journal of pharmacology

authors： Ito Y,Itoh T

更新日期：1984-11-01 00:00:00

abstract：:1 The actions of 4-(2-hydroxy-3-isopropylaminopropoxy) phenyl acetamide (ICI 66082), a new beta-adrenoceptor blocking drug, on the twitch response of the isolated papillary muscle of the rabbit and on dP/dt max and free heart rate of a denervated dog heart preparation, are described.2 ICI 66082 (up to 1 mg/ml) did not...

journal_title：British journal of pharmacology

authors： Harry JD,Knapp MF,Linden RJ

更新日期：1974-06-01 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:3,4-Methylenedioxymethamphetamine (MDMA or 'Ecstasy') is a worldwide major drug of abuse known to elicit neurotoxic effects. The mechanisms underlying the neurotoxic effects of MDMA are not clear at present, but the metabolism of dopamine and 5-HT by monoamine oxidase (MAO), as well as the hepati...

journal_title：British journal of pharmacology

authors： Barbosa DJ,Capela JP,Oliveira JM,Silva R,Ferreira LM,Siopa F,Branco PS,Fernandes E,Duarte JA,de Lourdes Bastos M,Carvalho F

更新日期：2012-02-01 00:00:00

abstract：:1. The effects of forskolin, a direct activator of adenylate cyclase and sodium nitroprusside, a direct activator of guanylate cyclase, were studied on rabbit isolated ear arteries preconstricted with 80 mM potassium. 2. Bolus injection of these two compounds resulted in vasodilatation. They had similar potencies in t...

journal_title：British journal of pharmacology

authors： Wood LM,Owen DA

更新日期：1989-03-01 00:00:00

abstract：:1. The pharmacology of the slow afterhyperpolarization (sAHP) was studied in cultured rat hippocampal pyramidal neurones. 2. Clotrimazole, its in vivo metabolite, 2-chlorophenyl-bisphenyl-methanol (CBM) and the novel analogues, UCL 1880 and UCL 2027, inhibited the sI(AHP) with similar IC50s (1-2 microM). 3. Clotrimazo...

journal_title：British journal of pharmacology

authors： Shah MM,Miscony Z,Javadzadeh-Tabatabaie M,Ganellin CR,Haylett DG

更新日期：2001-02-01 00:00:00