Influence of the duration of experimental fever on salicylate antipyresis in the rabbit.

abstract：BACKGROUND AND PURPOSE:Avoiding danger and finding food are closely related behaviours that are essential for surviving in a natural environment. Growing evidence supports an important role of gut-brain peptides in modulating energy homeostasis and emotional-affective behaviour. For instance, postprandial release of pa...

journal_title：British journal of pharmacology

authors： Verma D,Hörmer B,Bellmann-Sickert K,Thieme V,Beck-Sickinger AG,Herzog H,Sperk G,Tasan RO

更新日期：2016-06-01 00:00:00

abstract：:1. We have investigated the effects of chlorpheniramine, atropine and capsaicin pretreatment on inhaled sodium metabisulphite (MBS)-induced airway microvascular leakage and bronchoconstriction in anaesthetized guinea-pigs in order to clarify the mechanisms involved in these responses. The effects of frusemide and nedo...

journal_title：British journal of pharmacology

authors： Sakamoto T,Elwood W,Barnes PJ,Chung KF

更新日期：1992-10-01 00:00:00

abstract：:1. We investigated the potent 5-hydroxytryptamine (5-HT)-mediated vasorelaxation of the sheep pulmonary vein. Here we present evidence that this response is due to activation of 5-HT4 receptors. 2. 5-HT (1-1000 nM) caused concentration-dependent, maintained relaxations (pEC50 = 8.4 +/- 0.1) of isolated rings of sheep ...

journal_title：British journal of pharmacology

authors： Cocks TM,Arnold PJ

更新日期：1992-10-01 00:00:00

abstract：:1. To see if arachidonic acid (AA) plays a role in the sustained suppression of voltage-gated calcium channel currents produced by muscarinic receptor stimulation by carbachol (CCh), the effects of AA on membrane currents were examined in whole-cell voltage-clamped smooth muscle cells of the guinea-pig ileum. 2. In ce...

journal_title：British journal of pharmacology

authors： Unno T,Komori S,Ohashi H

更新日期：1996-09-01 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：BACKGROUND AND PURPOSE:Mitochondrial aldehyde dehydrogenase (ALDH-2) has been shown to provide a pathway for bioactivation of organic nitrates and to be prone to desensitization in response to highly potent, but not to less potent, nitrates. We therefore sought to support the hypothesis that bioactivation by ALDH-2 cri...

journal_title：British journal of pharmacology

authors： Wenzel P,Hink U,Oelze M,Seeling A,Isse T,Bruns K,Steinhoff L,Brandt M,Kleschyov AL,Schulz E,Lange K,Weiner H,Lehmann J,Lackner KJ,Kawamoto T,Münzel T,Daiber A

更新日期：2007-02-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Asthenozoospermia is a leading cause of male infertility, but development of pharmacological agents to improve sperm motility is hindered by the lack of effective screening platforms and knowledge of suitable molecular targets. We have demonstrated that a high-throughput screening (HTS) strategy ...

journal_title：British journal of pharmacology

authors： McBrinn RC,Fraser J,Hope AG,Gray DW,Barratt CLR,Martins da Silva SJ,Brown SG

更新日期：2019-12-01 00:00:00

abstract：:1 We investigated the neuritogenic action of nitric oxide (NO)-generating agents and their mechanisms of action in a subclone of rat pheochromocytoma, PC12h cells. 2 NO donors such as sodium nitroprusside (SNP, 0.05-1 microM), NOR1 (5-100 microM), NOR2 (5-20 microM), NOR3 (5-20 microM), NOR4 (5-100 microM), or S-nitro...

journal_title：British journal of pharmacology

authors： Yamazaki M,Chiba K,Mohri T

更新日期：2005-11-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Inhibitors of phosphodiesterase 5 (PDE5) affect signalling pathways by elevating cGMP, which is a second messenger involved in processes of neuroplasticity. In the present study, the effects of the PDE5 inhibitor, sildenafil, on the pathological features of Alzheimer's disease and on memory-relat...

journal_title：British journal of pharmacology

authors： Cuadrado-Tejedor M,Hervias I,Ricobaraza A,Puerta E,Pérez-Roldán JM,García-Barroso C,Franco R,Aguirre N,García-Osta A

更新日期：2011-12-01 00:00:00

abstract：:1. A comparative study was carried out to assess the regional haemodynamic effects of intravenous infusion of human alpha- and beta-calcitonin gene-related peptide (CGRP; 0.006, 0.06 and 0.6 nmol h-1) in conscious, unrestrained Wistar rats. 2. With human alpha-CGRP, tachycardia was always accompanied by a fall in mean...

journal_title：British journal of pharmacology

authors： Gardiner SM,Compton AM,Bennett T

更新日期：1989-12-01 00:00:00

abstract：BACKGROUND AND PURPOSE:While arachidonyl ethanolamine (anandamide) produces pharmacological effects mediated by cannabinoid CB1 receptors, it is also an agonist at the transient receptor potential vanilloid type 1 (TRPV1) ion channel. This study examined the cellular actions of anandamide in the midbrain periaqueductal...

journal_title：British journal of pharmacology

authors： Kawahara H,Drew GM,Christie MJ,Vaughan CW

更新日期：2011-07-01 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：:1. The potential influences of nitric oxide (NO) and prostaglandins on the renal effects of angiotensin II (Ang II) have been investigated in the captopril-treated anaesthetized rat by examining the effect of indomethacin or the NO synthase inhibitor, N(omega)-nitro-L-arginine methyl ester (L-NAME), on the renal respo...

journal_title：British journal of pharmacology

authors： Clayton JS,Clark KL,Johns EJ,Drew GM

更新日期：1998-08-01 00:00:00

abstract：:The chronic morphine-induced inhibition of rat liver tryptophan pyrrolase activity and the resultant increases in tryptophan availability to the brain and brain 5-hydroxytryptamine (5-HT) synthesis are reversed within 10 min after naloxone administration. The possible involvement of hepatic tryptophan metabolism in mo...

journal_title：British journal of pharmacology

authors： Badawy AA,Evans M

更新日期：1981-11-01 00:00:00

abstract：:1 The recently discovered benzodiazepine receptor exists in high concentration in the cerebral cortex. We have, therefore, examined the effects of diazepam and chlordiazepoxide on cortical neurone responses to excitatory and inhibitory amino acids and acetylcholine, in the cortex of rats anaesthetized with urethane.2 ...

journal_title：British journal of pharmacology

authors： Assumpção JA,Bernardi N,Brown J,Stone TW

更新日期：1979-12-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Subset of macrophages within the atheroma plaque displays a high glucose uptake activity. Nevertheless, the molecular mechanisms and the pathophysiological significance of this high glucose need remain unclear. While the role for hypoxia and hypoxia inducible factor 1α has been demonstrated, the ...

journal_title：British journal of pharmacology

authors： Ménégaut L,Jalil A,Pilot T,van Dongen K,Crespy V,Steinmetz E,Pais de Barros JP,Geissler A,Le Goff W,Venteclef N,Lagrost L,Gautier T,Thomas C,Masson D

更新日期：2020-12-29 00:00:00

abstract：:1. The effects of the nitrosothiol, S-nitroso N-acetylpenicillamine (SNAP) which liberates nitric oxide (NO), on ethanol-mediated gastric damage, blood flow and cyclic GMP levels in siaoloadenectomized (SALX) rats have been investigated. 2. Intraluminal instillation of ethanol (5-50% w/v) dose-dependently induced haem...

journal_title：British journal of pharmacology

authors： Tripp MA,Tepperman BL

更新日期：1995-05-01 00:00:00

abstract：:1. Inhibitory effects of water-soluble glucocorticoids administered intravenously were examined on skin and airway reactions caused by antigen challenge or chemical mediators in guinea-pigs. 2. Methylprednisolone suleptanate (U-67590A) which is an analogue of methylprednisolone, produced immediate inhibition of 3-h an...

journal_title：British journal of pharmacology

authors： Hashimoto M,Shinozaki Y,Katori M

更新日期：1993-03-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Red blood cells (RBCs) are reservoirs of vasodilatory, antiaggregatory, and antiinflammatory lipid mediators-epoxyeicosatrienoic acids (EETs). This study addresses the formation and release of erythrocyte-derived EETs in response to ATP receptor stimulation that may represent an important mechani...

journal_title：British journal of pharmacology

authors： Jiang H,Zhu AG,Mamczur M,Falck JR,Lerea KM,McGiff JC

更新日期：2007-08-01 00:00:00

abstract：:1 In cats anaesthetized with pentobarbitone and vagotomized, observations were made on the phrenic nerve action potential and the diaphragm electromyogram (EMG) at constant end-tidal Pco(2). Arterial blood pressure was stabilized by intravenous infusions of noradrenaline.2 Intravenous administration of saxitoxin (STX)...

journal_title：British journal of pharmacology

authors： Borison HL,Culp WJ,Gonsalves SF,McCarthy LE

更新日期：1980-02-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Lysophosphatidylinositol (LPI), a lipid signalling molecule, activates GPR55 and elevates intracellular Ca(2+). Here, we examine the actions of LPI in the rat resistance mesenteric artery and Ca(2+) responses in endothelial cells isolated from the artery. EXPERIMENTAL APPROACH:Vascular responses...

journal_title：British journal of pharmacology

authors： AlSuleimani YM,Hiley CR

更新日期：2015-06-01 00:00:00

abstract：:1. The regional binding of [3H]-(+)-5-methyl-10,11-dihydro-5H-dibenzo (a,d)cyclohepten-5,10-imine maleate ([3H]-(+)-MK 801) to sections of rat brain was measured by an in vitro quantitative autoradiographic technique. A heterogeneous distribution of binding sites was observed. 2. High values of binding were detected i...

journal_title：British journal of pharmacology

authors： Tacconi S,Ratti E,Marien MR,Gaviraghi G,Bowery NG

更新日期：1993-03-01 00:00:00

abstract：:1. Treatment of rat mesangial cells with interleukin 1 beta (IL-1 beta) or tumour necrosis factor alpha (TNF alpha) has been shown to induce a macrophage-type of nitric oxide (NO) synthase. Here we report that adenosine 3':5'-cyclic monophosphate (cyclic AMP) is another mediator that triggers induction of NO synthase ...

journal_title：British journal of pharmacology

authors： Mühl H,Kunz D,Pfeilschifter J

更新日期：1994-05-01 00:00:00

abstract：:1. 5-HT and the prostanoid TP receptor agonists, U46619 and I-BOP, constricted the human umbilical artery with pEC50 values of 7.3+/-0. 2, 6.7+/-0.1, and 7.3+/-0.2, respectively. The selective TP receptor antagonist, GR32191 (0.1 microM), shifted the concentration-effect curves to U46619 and I-BOP to the right, but ha...

journal_title：British journal of pharmacology

authors： Boersma JI,Janzen KM,Oliveira L,Crankshaw DJ

更新日期：1999-12-01 00:00:00

abstract：:1. Intrathecal (i.t.) administration of nociceptin and high doses of morphine induced allodynia in response to innocuous tactile stimuli, and i.t. nociceptin evoked hyperalgesia in response to noxious thermal stimuli in conscious mice. Here we have characterized the nociceptin-induced allodynia and compared it with th...

journal_title：British journal of pharmacology

authors： Hara N,Minami T,Okuda-Ashitaka E,Sugimoto T,Sakai M,Onaka M,Mori H,Imanishi T,Shingu K,Ito S

更新日期：1997-06-01 00:00:00

abstract：:1. ATP, UTP, ADP and ADP-beta-S elicited Ca2+ -signals in cultured aortic smooth muscle cells although ADP, UDP and ADP-beta-S gave approximately 40% of the maximal response seen with ATP and UTP. Adenosine, AMP or alpha,beta-methylene-ATP had no effect. These responses were attributed to P2Y2/4 and P2Y1 receptors, wh...

journal_title：British journal of pharmacology

authors： Pediani JD,McGrath JC,Wilson SM

更新日期：1999-04-01 00:00:00

abstract：:1. The effect of the potassium channel openers, NIP-121 and cromakalim, on agonist-induced relaxation of the guinea-pig isolated trachea was investigated and the results were compared with those in the epithelium-denuded trachea. 2. Tracheal strips were incubated with a potassium channel opener or vehicle for 30 min i...

journal_title：British journal of pharmacology

authors： Shikada K,Tanaka S

更新日期：1992-12-01 00:00:00

abstract：:1. Intracellular recordings were made from neurones in vitro in the rat substantia nigra zona compacta and ventral tegmental area; the neurones had the characteristic properties of dopamine-containing cells, and fired action potentials spontaneously. 2. Cocaine (1-10 microM) inhibited spontaneous firing, hyperpolarize...

journal_title：British journal of pharmacology

authors： Lacey MG,Mercuri NB,North RA

更新日期：1990-04-01 00:00:00

abstract：:1. A method is presented which enables the dissociation constant (KI) of a competitive, pseudo-irreversible or non-competitive antagonist-receptor complex to be estimated without knowledge of agonist concentrations. 2. The technique has been tested using sets of concentration-response data which simulated these variou...

journal_title：British journal of pharmacology

authors： Mackay D

更新日期：1994-01-01 00:00:00

abstract：:1. In human epithelial-like DLD-I cells, nitric oxide synthase (NOS) II expression was induced by interferon-gamma (100 u ml(-1)) alone and, to a larger extent, by a cytokine mixture (CM) consisting of interferon-gamma, interleukin-1beta (50 u ml(-1)) and tumor necrosis factor-alpha (10 ng ml(-1)). 2. CM-induced NOS I...

journal_title：British journal of pharmacology

authors： Kleinert H,Wallerath T,Fritz G,Ihrig-Biedert I,Rodriguez-Pascual F,Geller DA,Förstermann U

更新日期：1998-09-01 00:00:00