Differential effect of acetylsalicylic acid and dipyrone on prostaglandin production in human fibroblast cultures.

abstract：BACKGROUND AND PURPOSE:The rat respiratory muscle diaphragm has markedly lower sensitivity than the locomotor muscle extensor digitorum longus (EDL) to the new acetylcholinesterase (AChE) inhibitors, alkylammonium derivatives of 6-methyluracil (ADEMS). This study evaluated several possible reasons for differing sensiti...

journal_title：British journal of pharmacology

authors： Petrov KA,Yagodina LO,Valeeva GR,Lannik NI,Nikitashina AD,Rizvanov AA,Zobov VV,Bukharaeva EA,Reznik VS,Nikolsky EE,Vyskočil F

更新日期：2011-06-01 00:00:00

abstract：:1 The prostaglandin synthesizing enzymes were found to be present in fat cell ghosts isolated from rabbit adipose tissue. 2 Prostaglandin E2 (PGE2) and PGF2, were synthesized by ghosts after stimulation with adrenocorticotrophic hormone (ACTH). 3 Indomethacin was found to inhibit this synthesis but not the synthesis o...

journal_title：British journal of pharmacology

authors： Lewis GP,Piper PJ,Vigo C

更新日期：1979-11-01 00:00:00

abstract：:1. The subtypes of endothelin receptors that mediate the effects of endothelin-1 (ET-1) on mean arterial pressure (MAP), heart rate (HR), mean circulatory filling pressure (MCFP), arterial resistance (RA), cardiac output (CO) and venous resistance (RV) were characterized in 9 groups of pentobarbitone-anaesthetized rat...

journal_title：British journal of pharmacology

authors： Palacios B,Lim SL,Pang CC

更新日期：1997-11-01 00:00:00

abstract：:1 4-Aminopyridine methiodide (4-APMI), a quaternary analogue of aminopyridine (4-AP), was tested for neuromuscular facilitatory actions on the chick biventer cervicis and frog sartorius nerve-muscle preparations. 2 In the chick, 4-APMI (10(-4) to 10(-2) M) augmented indirectly elicited twitches and reversed tubocurari...

journal_title：British journal of pharmacology

authors： Horn AS,Lambert JJ,Marshall IG

更新日期：1979-01-01 00:00:00

abstract：:(1) Increased oxidative stress plays a significant role in the etiology of cardiovascular disease. Lipid peroxidation, initiated in the presence of hydroxy radicals resulting in the production of malondialdehyde, directly produces oxidative stress. This study was designed to examine the direct impact of malondialdehyd...

journal_title：British journal of pharmacology

authors： Folden DV,Gupta A,Sharma AC,Li SY,Saari JT,Ren J

更新日期：2003-08-01 00:00:00

abstract：:Oxidized low density lipoproteins (oxLDL) are thought to play a major role in atherosclerosis. OxLDL act in part through alteration of intracellular signalling pathways in cells of the vascular wall. We recently reported that the EGF receptor (EGFR) signalling pathway is activated by lipid peroxidation products (among...

journal_title：British journal of pharmacology

authors： Vacaresse N,Vieira O,Robbesyn F,Jürgens G,Salvayre R,Negre-Salvayre A

更新日期：2001-04-01 00:00:00

abstract：:1. The role of endogenous ADP in platelet aggregation in vivo remains unclear due to the lack of suitable P2T-antagonist probes. This paper describes the potency, selectivity and specificity of the novel P 2T-purinoceptor antagonist, FPL 67085 (2-propylthio-D-beta,gamma-dichloromethylene ATP) both in vitro and in the ...

journal_title：British journal of pharmacology

authors： Humphries RG,Tomlinson W,Clegg JA,Ingall AH,Kindon ND,Leff P

更新日期：1995-07-01 00:00:00

abstract：:1. The effect of frusemide, ethacrynic acid and indanyloxyacetic acid was investigated on spontaneous calcium-activated chloride (ICl(Ca)) and potassium currents (IK(Ca)) in rabbit portal vein cells with the perforated patch technique. 2. Frusemide (0.3-1.0 x 10(-3) M) reduced the amplitude of spontaneous transient in...

journal_title：British journal of pharmacology

authors： Greenwood IA,Hogg RC,Large WA

更新日期：1995-07-01 00:00:00

abstract：:1. Recently we and others have demonstrated a stereoselective inhibition of slowly activating human I(Ks) (KCNQ1/MinK) and homomeric KCNQ1 potassium channels by the enantiomers of the chromanol 293B. Here, we further characterized the mechanism of the 293B block and studied the influence of the 293B enantiomers on the...

journal_title：British journal of pharmacology

authors： Seebohm G,Lerche C,Pusch M,Steinmeyer K,Brüggemann A,Busch AE

更新日期：2001-12-01 00:00:00

abstract：:The response to vasoactive agents of microvessels of the rat was tested in vivo by direct microscopic observation of the exteriorized mesentery and assessment of cutaneous vascular permeability changes with Evans blue. The constrictor response to a standard amount of noradrenaline in mesenteric microvessels was fully ...

journal_title：British journal of pharmacology

authors： Fortes ZB,Garcia Leme J,Scivoletto R

更新日期：1984-11-01 00:00:00

abstract：:1. This study was undertaken to determine the effects of OSW-1 (3 beta, 16 beta, 17 alpha-trihydroxycholest-5-en-22-one 16-O-(2-O-4-methoxybenzoyl-beta-D-xylopyranosyl)- (1-->3)-(2-O-acetyl-alpha-L-arabinopyranoside)) on the pituitary-ovarian system and the functions of aortic smooth muscle. 2. A single s.c. injection...

journal_title：British journal of pharmacology

authors： Tamura K,Honda H,Mimaki Y,Sashida Y,Kogo H

更新日期：1997-08-01 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：:1. A crude preparation of toxin was extracted from a sample of mussels Mytilus edulis, part of a batch responsible for many cases of paralytic shellfish poisoning.2. The crude extract was partially purified by absorption on sodium Amberlite ion-exchange resin. Two toxins were recovered by elution from the Amberlite, a...

journal_title：British journal of pharmacology

authors： Evans MH

更新日期：1970-12-01 00:00:00

abstract：:1 Core and tail skin temperature was measured in rats which had guide cannulae implanted into their brains to allow drug injections directly into the preoptic anterior hypothalamus. 2 Apomorphine and dopamine (10 microgram in 1 microliter) injected into the area of the preoptic anterior hypothalamus caused a fall in c...

journal_title：British journal of pharmacology

authors： Cox B,Lee TF

更新日期：1977-09-01 00:00:00

abstract：:1. Strength-duration curves for threshold mechanical responses to single transmural stimuli were identical for rat and guinea-pig detrusor. In both species atropine had no effect on the curves, but the curves were shifted to the right by nerve blockade with tetrodotoxin (TTX), and by blockade of P2-purinoceptors with ...

journal_title：British journal of pharmacology

authors： Brading AF,Williams JH

更新日期：1990-03-01 00:00:00

abstract：:The concentrations of catecholamines and the activities of dopamine-beta-hydroxylase were measured in blood obtained from decapitated diabetic and aged-matched control rats. The activity of dopamine-beta-hydroxylase in blood from diabetic rats was much greater (5 fold) than that seen for control rats. For both diabeti...

journal_title：British journal of pharmacology

authors： Berkowitz BA,Head RJ

更新日期：1978-09-01 00:00:00

abstract：:GR231118 (also known as 1229U91 and GW1229), a purported Y(1) antagonist and Y(4) agonist was radiolabelled using the chloramine T method. [(125)I]-GR231118 binding reached equilibrium within 10 min at room temperature and remained stable for at least 4 h. Saturation binding experiments showed that [(125)I]-GR231118 b...

journal_title：British journal of pharmacology

authors： Dumont Y,Quirion R

更新日期：2000-01-01 00:00:00

abstract：:1. The systemic and regional haemodynamic effects of the potassium channel activator EMD 52692 or its solvent were investigated after intravenous and after intracoronary administration in anaesthetized pigs. 2. Consecutive intravenous 10 min infusions of EMD 52692 (0.15, 0.30, 0.60, 1.20 micrograms kg-1 min-1; n = 7) ...

journal_title：British journal of pharmacology

authors： Sassen LM,Duncker DJ,Gho BC,Diekmann HW,Verdouw PD

更新日期：1990-11-01 00:00:00

abstract：:1. Aqueous extracts of stratum corneum were found to cause histamine-like contractions of the guinea-pig ileum which were not antagonized by mepyramine, atropine or bromolysergic acid diethylamide.2. The compounds responsible for this contraction were isolated by chromatography and shown to be common amino acids, part...

journal_title：British journal of pharmacology

authors： Lewis GP,McMartin C,Rosenthal SR,Yates C

更新日期：1972-05-01 00:00:00

abstract：:Chronic heart failure (HF) is characterized by left ventricular (LV) structural remodeling, impaired function, increased circulating noradrenaline (NA) levels and impaired responsiveness of the myocardial beta-adrenoceptor (betaAR)-adenylyl cyclase (AC) system. In failing hearts, inhibition of the sodium/proton-exchan...

journal_title：British journal of pharmacology

authors： Leineweber K,Aker S,Beilfuss A,Rekasi H,Konietzka I,Martin C,Heusch G,Schulz R

更新日期：2006-05-01 00:00:00

abstract：:Following the discovery of the involvement of the ribonucleoprotein TDP-43 in amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD), a major research focus has been to develop treatments that can prevent or alleviate these disease conditions. One pharmacological approach has been to use TDP-...

journal_title：British journal of pharmacology

authors： Buratti E

更新日期：2020-05-29 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：BACKGROUND AND PURPOSE:Cannabidiol (CBD) has emerged as an interesting compound with therapeutic potential in several CNS disorders. However, whether it can modulate synaptic activity in the CNS remains unclear. Here, we have investigated whether CBD modulates synaptic transmission in rat hippocampal cultures and acute...

journal_title：British journal of pharmacology

authors： Ledgerwood CJ,Greenwood SM,Brett RR,Pratt JA,Bushell TJ

更新日期：2011-01-01 00:00:00

abstract：:1 The effects of pretreatment with aspirin, and of prostacyclin (PGI(2)) infusions, on responses to myocardial ischaemia and infarction produced by ligation of a coronary artery were investigated in conscious rats.2 Surgical preparation, under halothane anaesthesia, consisted of implanting exteriorized aortic and jugu...

journal_title：British journal of pharmacology

authors： Johnston KM,MacLeod BA,Walker MJ

更新日期：1983-01-01 00:00:00

abstract：:1. The inhibitory transmission in isolated preparations of cavernosal smooth muscle from human penis has been studied. 2. Electrical field stimulation (EFS; 2-64 pulses/train, 0.8 ms pulse duration, 10 Hz) evoked relaxation of preparations treated with guanethidine (50 microM). The EFS-evoked relaxations were atropine...

journal_title：British journal of pharmacology

authors： Pickard RS,Powell PH,Zar MA

更新日期：1991-11-01 00:00:00

abstract：:1. In cultured endothelial cells of the pig the endothelium-derived relaxing factor (EDRF) releasing agent thrombin (2 u ml-1) caused a significant increase in basal levels of both guanosine 3':5'-cyclic monophosphate (cyclic GMP) and inositol 1,4,5-trisphosphate (IP3). This increase was time dependent, with peak leve...

journal_title：British journal of pharmacology

authors： Lang D,Lewis MJ

更新日期：1991-01-01 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. [3H]-ouabain uptake in resting guinea-pig papillary muscles depended directly on incubation time and inversely with muscle radius. The equivalence of both parameters support the relevance of diffusion. A particular mechanism of receptor-controlled diffusion was implicated by the saturation of initial rates of uptak...

journal_title：British journal of pharmacology

authors： Ebner F,Siegl H

更新日期：1988-10-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Transforming growth factor beta1 (TGFbeta1) is generated in atherosclerotic and injured vessel walls. We examined whether the endothelial-to-mesenchymal transdifferentiation induced by TGFbeta1 affects endothelial functions. EXPERIMENTAL APPROACH:Bovine aortic endothelial cells (BAECs) were trea...

journal_title：British journal of pharmacology

authors： Watanabe M,Oike M,Ohta Y,Nawata H,Ito Y

更新日期：2006-10-01 00:00:00

abstract：:Monocytes and macrophages provide key targets for the action of novel anti-inflammatory therapeutics targeted at inhibition of PDE4 cAMP-specific phosphodiesterases. PDE4 enzymes provide the dominant cAMP phosphodiesterase activity in U937 human monocytic cells. Differentiation of U937 monocytic cells to a macrophage-...

journal_title：British journal of pharmacology

authors： Shepherd MC,Baillie GS,Stirling DI,Houslay MD

更新日期：2004-05-01 00:00:00