Effect of iontophoretic application of cholinergic agonists and their antagonists to guinea-pig pelvic ganglia.

abstract：:The fate and activity of drugs are frequently dictated not only by the host per se but also by the microorganisms present in the gastrointestinal tract. The gut microbiome is known to, both directly and indirectly, affect drug metabolism. More evidence now hints at the effects that drugs can have on the function and c...

journal_title：British journal of pharmacology

authors： Walsh J,Griffin BT,Clarke G,Hyland NP

更新日期：2018-12-01 00:00:00

abstract：:1. The expression of hepatocyte growth factor (HGF) is essential for normal placental development although its function is unknown. In this study we examined the effect of HGF on trophoblast cell motility and invasion of fibrin gels and investigated the possible role of nitric oxide (NO) in this process. 2. The human ...

journal_title：British journal of pharmacology

authors： Cartwright JE,Holden DP,Whitley GS

更新日期：1999-09-01 00:00:00

abstract：:1. DL-1-(2-acetyl-4-n-butyramidophenoxy)-2-hydroxy-3-isopropylaminopropane hydrochloride (M & B 17803A) was given to four healthy volunteers in single oral doses of up to 300 mg. There were no subjective effects and no significant alterations in the heart rate, systolic and diastolic blood pressure in the seated posit...

journal_title：British journal of pharmacology

authors： Cuthbert MF,Owusu-Ankomah K

更新日期：1971-11-01 00:00:00

abstract：:1. The mechanisms involved in tachykinin-induced oedema were investigated in rat skin and interactions between the tachykinins and calcitonin gene-related peptide (CGRP) were studied. 2. Intradermal injections of the tachykinins, substance P, neurokinin A and neurokinin B, stimulated local oedema formation which was i...

journal_title：British journal of pharmacology

authors： Brain SD,Williams TJ

更新日期：1989-05-01 00:00:00

abstract：:Palmitaldehyde acetal phosphatidic acid ( PGAP ) caused dose-dependent aggregation of human platelets resuspended in modified Tyrode medium, with a threshold concentration of 0.5-1 microM and an EC50 of 4 microM. Concentrations of PGAP which elicited biphasic irreversible aggregation concomitantly induced formation of...

journal_title：British journal of pharmacology

authors： Brammer JP,Maguire MH

更新日期：1984-05-01 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：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 U46619, a prostaglandin H2 endoperoxide analogue and thromboxane A2 agonist, dose-dependently inhibited accumulation and metabolism of thromboxane B2 in the isolated perfused lung of the guinea-pig. At similar doses prostaglandins E1, E2, F1 alpha, F2 alpha, I2, 5, 6-trans-PGE2 and 8-iso-PGE1 were ineffective. 2 U46...

journal_title：British journal of pharmacology

authors： Hoult JR,Robinson C

更新日期：1983-01-01 00:00:00

abstract：:(1) Stimulation of the vanilloid receptor-1 (TRPV1) results in the activation of nociceptive and neurogenic inflammatory responses. Poor specificity and potency of TRPV1 antagonists has, however, limited the clarification of the physiological role of TRPV1. (2) Recently, iodo-resiniferatoxin (I-RTX) has been reported ...

journal_title：British journal of pharmacology

authors： Rigoni M,Trevisani M,Gazzieri D,Nadaletto R,Tognetto M,Creminon C,Davis JB,Campi B,Amadesi S,Geppetti P,Harrison S

更新日期：2003-03-01 00:00:00

abstract：:(1) The effects on the whole-cell carbachol-induced muscarinic cationic current (mIcat) of antibodies against the alpha-subunits of various G proteins, as well as the effect of a Gbetagamma subunit, were studied in single guinea-pig ileal smooth muscle cells voltage-clamped at -50 mV. Ionized intracellular calcium con...

journal_title：British journal of pharmacology

authors： Yan HD,Okamoto H,Unno T,Tsytsyura YD,Prestwich SA,Komori S,Zholos AV,Bolton TB

更新日期：2003-06-01 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：:1. alpha 1-Adrenoceptor densities were studied in cardiac membrane preparations from several mammalian species including human failing hearts under identical experiment conditions; the alpha 1-adrenoceptor antagonist, [3H]-prazosin, was used as radioligand. End-stage heart failure (NYHA IV) in human hearts was due to ...

journal_title：British journal of pharmacology

authors： Steinfath M,Chen YY,Lavický J,Magnussen O,Nose M,Rosswag S,Schmitz W,Scholz H

更新日期：1992-09-01 00:00:00

abstract：:1. SB 206553 (5-methyl-1-(3-pyridylcarbamoyl)-1,2,3,5-tetrahydropyrrolo[2 ,3-f]indole) displays a high affinity (pK1 7.9) for the cloned human 5-HT2C receptor expressed in HEK 293 cells and the 5-HT2B receptor (pA2 8.9) as measured in the rat stomach fundus preparation. SB 206553 has low affinity for cloned human 5-HT...

journal_title：British journal of pharmacology

authors： Kennett GA,Wood MD,Bright F,Cilia J,Piper DC,Gager T,Thomas D,Baxter GS,Forbes IT,Ham P,Blackburn TP

更新日期：1996-02-01 00:00:00

abstract：:1. The aim of the present study was to test the effects of DAU 6215 (endo-N-(8-methyl-8-azabicyclo-[3.2.1]-octo-3-yl)-2,3-dihydro-2-ox o-1H- benzimidazole-1-carboxamide carboxamide hydrochloride), a newly synthesized, selective 5-hydroxytryptamine3 (5-HT3) antagonist, on the cell membrane properties and on characteriz...

journal_title：British journal of pharmacology

authors： Passani MB,Pugliese AM,Azzurrini M,Corradetti R

更新日期：1994-06-01 00:00:00

abstract：:1 The fate of (15S)-15-methyl prostaglandin E(2) methyl ester and 16,16-dimethyl prostaglandin E(2) in the pulmonary circulation of rat isolated lungs was compared with that of prostaglandin E(2) by means of bioassay.2 Calculated on the basis of height of response of the assay tissues, the inactivation of prostaglandi...

journal_title：British journal of pharmacology

authors： Bakhle YS,Jancar S,Whittle BJ

更新日期：1978-02-01 00:00:00

abstract：BACKGROUND AND PURPOSE:An innovative chemical approach, named peptide welding technology (PWT), allows the synthesis of multibranched peptides with extraordinary high yield, purity and reproducibility. With this approach, three different tetrabranched derivatives of nociceptin/orphanin FQ (N/OFQ) have been synthesized ...

journal_title：British journal of pharmacology

authors： Rizzi A,Malfacini D,Cerlesi MC,Ruzza C,Marzola E,Bird MF,Rowbotham DJ,Salvadori S,Guerrini R,Lambert DG,Calo G

更新日期：2014-09-01 00:00:00

abstract：:1. We examined the effects of selective and nonselective cyclo-oxygenase (COX) inhibitors on various functional changes in the rat stomach induced by topical application of taurocholate (TC) and investigated the preferential role of COX isozymes in these responses. 2. Rat stomachs mounted in ex vivo chambers were perf...

journal_title：British journal of pharmacology

authors： Hirata T,Ukawa H,Yamakuni H,Kato S,Takeuchi K

更新日期：1997-10-01 00:00:00

abstract：:1 The presynaptic alpha-adrenoceptor blocking activity of the newly synthesized alpha-adrenoceptor blocking drug, benextramine, was evaluated in the isolated left atrium of the guinea-pig heart. 2 High-voltage stimulation increased the force of contraction of electrically driven atrial strips, presumably by releasing ...

journal_title：British journal of pharmacology

authors： Belleau B,Benfey BG,Melchiorre C

更新日期：1982-04-01 00:00:00

abstract：:The sensitivity of the uterus to the inhibition of contractions by salbutamol, diltiazem or nifedipine was assessed in the ovariectomized, post-partum rat by dose-response curves following bolus intravenous (i.v.) administration. These tests were performed before (day 1), immediately after a 20 h i.v. infusion of salb...

journal_title：British journal of pharmacology

authors： Abel MH,Hollingsworth M

更新日期：1986-07-01 00:00:00

abstract：:The molecular mechanisms involved in veratridine-induced chromaffin cell death have been explored. We have found that exposure to veratridine (30 microM, 1 h) produces a delayed cellular death that reaches 55% of the cells 24 h after veratridine exposure. This death has the features of apoptosis as DNA fragmentation c...

journal_title：British journal of pharmacology

authors： Jordán J,Galindo MF,Calvo S,González-García C,Ceña V

更新日期：2000-08-01 00:00:00

abstract：:Among the five human 5-HT(4) (h5-HT(4)) receptor isoforms, the h5-HT(4(a)) receptor was studied with a particular emphasis on the molecular interactions involved in ligand binding. For this purpose, we used site-directed mutagenesis of the transmembrane domain. Twelve mutants were constructed with a special focus on t...

journal_title：British journal of pharmacology

authors： Mialet J,Dahmoune Y,Lezoualc'h F,Berque-Bestel I,Eftekhari P,Hoebeke J,Sicsic S,Langlois M,Fischmeister R

更新日期：2000-06-01 00:00:00

abstract：:Calcitonin gene-related peptide (CGRP) is believed to play a pivotal role in the pathogenesis of migraine via activation of CGRP receptors in the trigeminovascular system. The CGRP receptor antagonist, BIBN4096BS, has proven efficacy in the acute treatment of migraine attacks and represents a new therapeutic principle...

journal_title：British journal of pharmacology

authors： Petersen KA,Birk S,Doods H,Edvinsson L,Olesen J

更新日期：2004-11-01 00:00:00

abstract：:1. The aim of the present study was to explore the contribution of adrenergic, sensory and nitrergic innervations to the inhibitory effects of the beta2-adrenoceptor agonist clenbuterol on responses to electrical field stimulation (EFS, 200 mA, 0.3 ms, 1-16 Hz, for 30 s, at 1 min interval) in rat mesenteric artery seg...

journal_title：British journal of pharmacology

authors： Marín J,Balfagón G

更新日期：1998-06-01 00:00:00

abstract：:1. The purpose of this investigation was to determine whether enhanced contractile responses to noradrenaline (NA) of mesenteric arteries from rats with chronic streptozotocin-induced diabetes are associated with increases in mean cytosolic [Ca(2+)]i. 2. [Ca(2+)]i was measured with fura 2-AM, and was monitored simulta...

journal_title：British journal of pharmacology

authors： Chow WL,Zhang L,MacLeod KM

更新日期：2001-09-01 00:00:00

abstract：BACKGROUND AND PURPOSE:A fluorinated derivative (2F-MT-45) of the synthetic μ-opioid receptor agonist MT-45 (1-cyclohexyl-4-(1,2-diphenylethyl)piperazine) was recently identified in a seized illicit tablet. While MT-45 is a Class A drug, banned in a number of countries, nothing is known about the pharmacology of 2F-MT-...

journal_title：British journal of pharmacology

authors： Baptista-Hon DT,Smith M,Singleton S,Antonides LH,Nic Daeid N,McKenzie C,Hales TG

更新日期：2020-08-01 00:00:00

abstract：:The release of gamma-aminobutyric acid (GABA) and acetylcholine (ACh) from the strips of guinea-pig ileum was investigated in the presence of neurotensin. Neurotensin evoked the release of [3H]-GABA from the strips preloaded with [3H]-GABA, and the evoked release was Ca2+-dependent and tetrodotoxin-sensitive. Hexameth...

journal_title：British journal of pharmacology

authors： Nakamoto M,Tanaka C,Taniyama K

更新日期：1987-03-01 00:00:00

abstract：:1. The effects of inhibiting endogenous Cu/Zn superoxide dismutase (SOD) with diethyldithiocarbamate (DETCA) were examined on the ability of hydroquinone, hydroxocobalamin and carboxy-PTIO to block nitrergic relaxation in the bovine retractor penis (BRP) muscle. 2. Incubation of strips of BRP with DETCA (3 mM) for 2 h...

journal_title：British journal of pharmacology

authors： Paisley K,Martin W

更新日期：1996-04-01 00:00:00

abstract：:Despite its long-standing reputation as a foul smelling and toxic gas that is associated with the decay of biological matter,hydrogen sulphide (H2S) has emerged as an important regulator of cardiovascular homoeostasis. H2S promotes a number of cellular signals that regulate metabolism, cardiac function and cell surviv...

journal_title：British journal of pharmacology

authors： Lefer DJ

更新日期：2008-11-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Tetracyclines were recently found to induce tumour cell death, but the early processes involved in this cytotoxic effect remain unclear. EXPERIMENTAL APPROACH:Viability of human and mouse melanoma cells was determined by MTT assay and flow cytometry. Kinase/protein/caspase activation was measure...

journal_title：British journal of pharmacology

authors： Shieh JM,Huang TF,Hung CF,Chou KH,Tsai YJ,Wu WB

更新日期：2010-07-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Diabetes mellitus is associated with a specific cardiomyopathy. We compared the cardioprotective effects of an endothelin-A receptor blocker (ET(A)-RB) with those of an angiotensin-converting enzyme inhibitor (ACE-I) in rats with streptozotocin (STZ)-induced diabetes. EXPERIMENTAL APPROACH:Diabe...

journal_title：British journal of pharmacology

authors： Wölkart G,Pang X,Stessel H,Kirchengast M,Brunner F

更新日期：2007-08-01 00:00:00