Pharmacological characterization of 5-hydroxytryptamine-induced depolarization of the rat isolated vagus nerve.

abstract：:1 We previously reported that four lignans isolated from the bark of Machilus thunbergii Sieb. et Zucc. (Lauraceae) protected primary cultures of rat cortical neurons from neurotoxicity induced by glutamate. 2 Among the lignans, meso-dihydroguaiarectic acid (MDGA) and licarin A significantly attenuated glutamate-induc...

journal_title：British journal of pharmacology

authors： Ma CJ,Kim SR,Kim J,Kim YC

更新日期：2005-11-01 00:00:00

abstract：:1. To examine further the potentiation by endothelin-1 on the vascular response to sympathetic stimulation, we studied the isometric response of isolated segments, 2 mm long, from the rabbit central ear artery to electrical field stimulation (1-8 Hz), under different conditions, at 37 degrees C and during cooling (30 ...

journal_title：British journal of pharmacology

authors： García-Villalón AL,Padilla J,Fernández N,Monge L,Gómez B,Diéguez G

更新日期：1997-08-01 00:00:00

abstract：:1. We investigated how microsomal cytochrome P450 mono-oxygenase (Cyp450 MO) is regulated in cultured porcine aortic endothelial cells. The hypothesis that a Cyp450 MO-derived metabolite links Ca2+ store depletion and Ca2+ entry was studied further. 2. Microsomal Cyp450 MO was monitored fluorometrically by dealkylatio...

journal_title：British journal of pharmacology

authors： Hoebel BG,Kostner GM,Graier WF

更新日期：1997-08-01 00:00:00

abstract：:1. The administration of an analgesic dose (10 mg/kg, s.c.) of morphine increased the concentrations of the dopamine metabolites, 3,4-dihydroxyphenylacetic acid (DOPAC) and homovanillic acid (HVA) in the brains of normal mice, and the time course of the change in the DOPAC concentration corresponded approximately to t...

journal_title：British journal of pharmacology

authors： Fukui K,Takagi H

更新日期：1972-01-01 00:00:00

abstract：:The vasorelaxant activity of eicosapentaenoic acid (EPA, 20:5n-3), the omega-3 polyunsaturated fatty acid, was investigated in isolated Wistar Kyoto (WKY) rat aortae by measuring isometric tension. Eicosapentaenoic acid (1 - 100 microM) relaxed rat aortae contracted with high K(+) (80 mM) or noradrenaline (NA, 1 micro...

journal_title：British journal of pharmacology

authors： Engler MB,Engler MM,Browne A,Sun YP,Sievers R

更新日期：2000-12-01 00:00:00

abstract：:The histamine H3 receptor, first described in 1983 as a histamine autoreceptor and later shown to also function as a heteroreceptor that regulates the release of other neurotransmitters, has been the focus of research by numerous laboratories as it represents an attractive drug target for a number of indications inclu...

journal_title：British journal of pharmacology

authors： Esbenshade TA,Browman KE,Bitner RS,Strakhova M,Cowart MD,Brioni JD

更新日期：2008-07-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Two of the most relevant unmet needs in epilepsy are represented by the development of disease-modifying drugs able to affect epileptogenesis and/or the study of related neuropsychiatric comorbidities. No systematic study has investigated the effects of chronic treatment with antipsychotics or an...

journal_title：British journal of pharmacology

authors： Citraro R,Leo A,De Fazio P,De Sarro G,Russo E

更新日期：2015-06-01 00:00:00

abstract：:1 The effect of methylene, thio, and imido substituted analogues of adenosine 5'-triphosphate (ATP) on surfactant phospholipid secretion and calcium mobilization in rat isolated alveolar Type II cells was studied. 2 ATP was the most potent secretagogue of adenine nucleotides studied. The rank order of agonist potency ...

journal_title：British journal of pharmacology

authors： Rice WR,Singleton FM

更新日期：1987-08-01 00:00:00

abstract：:1 Both phasic and tonic responses to KCl 160 mM were reduced by Ca2+ deprivation. After 90 min, the phasic response was abolished but 13 +/- 1.5% of the tonic response remained. This resistant component was still present if the Ca2+-free solution contained EGTA 0.1 mM. The tonic response was more resistant to deprivat...

journal_title：British journal of pharmacology

authors： Hay DW,Wadsworth RM

更新日期：1982-05-01 00:00:00

abstract：:1. The distribution and some pharmacological properties of centrally located dextromethorphan high-affinity binding sites were investigated by in vitro autoradiography. 2. Sodium chloride (50 mM) induced a 7 to 12 fold increase in dextromethorphan binding to rat brain in all areas tested. The effect of sodium was conc...

journal_title：British journal of pharmacology

authors： Meoni P,Tortella FC,Bowery NG

更新日期：1997-04-01 00:00:00

abstract：:1. The stimulatory effect of neuropeptide Y (NPY) on food intake is well established but the roles of the receptor subtypes Y(1) and Y(5) have been difficult to define. We have studied the effects of two novel Y(1)-preferring and two Y(5)-preferring agonists on feeding in guinea pigs. 2. The Y(1)-preferring receptor a...

journal_title：British journal of pharmacology

authors： Lecklin A,Lundell I,Salmela S,Männistö PT,Beck-Sickinger AG,Larhammar D

更新日期：2003-08-01 00:00:00

abstract：BACKGROUND AND PURPOSE:It has been extensively reported that the leading anti-diabetic drug, metformin, exerts significant anticancer effects. This hydrophilic, cationic drug requires cation transporters for cellular entry where it activates its intracellular target, the AMPK signalling pathway. However, clinical resul...

journal_title：British journal of pharmacology

authors： Cai H,Everett RS,Thakker DR

更新日期：2019-08-01 00:00:00

abstract：:1. The vasodilator response to acetylcholine (ACh) was investigated in the aortic arches of the leopard frog (Rana pipiens). 2. With adrenaline pre-constricted preparations, both ACh and sodium nitroprusside (SNP) caused concentration-dependent relaxations. Damage to the endothelial layer abolished relaxations to ACh,...

journal_title：British journal of pharmacology

authors： Knight GE,Burnstock G

更新日期：1996-07-01 00:00:00

abstract：BACKGROUNDS AND PURPOSE:Lactic acidosis is a fatal adverse effect of metformin, but the risk factor remains unclear. Multidrug and toxin extrusion 1 (MATE1) is expressed in the luminal membrane of the kidney and liver. MATE1 was revealed to be responsible for the tubular and biliary secretion of metformin. Therefore, s...

journal_title：British journal of pharmacology

authors： Toyama K,Yonezawa A,Masuda S,Osawa R,Hosokawa M,Fujimoto S,Inagaki N,Inui K,Katsura T

更新日期：2012-06-01 00:00:00

abstract：:1. Dogs, anaesthetized with chloralose and urethane, were subjected to a 25 min occlusion of the left anterior descending coronary artery. This resulted in ventricular ectopic activity, a reduction in baroreflex sensitivity (BRS, measured following the intravenous administration of phenylephrine), elevations in the ep...

journal_title：British journal of pharmacology

authors： Babai L,Papp JG,Parratt JR,Végh A

更新日期：2002-01-01 00:00:00

abstract：BACKGROUND AND PURPOSE:The renal sodium-glucose cotransporter 2 (SGLT2) plays an important role in the reuptake of filtered glucose in the proximal tubule and therefore may be an attractive target for the treatment of diabetes mellitus. This study characterizes the pharmacological profile of TS-071 ((1S)-1,5-anhydro-1-...

journal_title：British journal of pharmacology

authors： Yamamoto K,Uchida S,Kitano K,Fukuhara N,Okumura-Kitajima L,Gunji E,Kozakai A,Tomoike H,Kojima N,Asami J,Toyoda H,Arai M,Takahashi T,Takahashi K

更新日期：2011-09-01 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：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:Inhibitory neurotransmission plays an important role in controlling excitability within nociceptive circuits of the spinal cord dorsal horn. Loss of inhibitory signalling is thought to contribute to the development of pathological pain. Preclinical studies suggest that increasing inhibitory glyci...

journal_title：British journal of pharmacology

authors： Winters BL,Rawling T,Vandenberg RJ,Christie MJ,Bhola RF,Imlach WL

更新日期：2018-06-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Allosteric modulators of ionotropic receptors and GPCRs might constitute valuable therapeutic tools for intervention in several diseases, including Parkinson's disease (PD). However, the possibility that some of these compounds could alter neurotransmission in health and disease has not been thor...

journal_title：British journal of pharmacology

authors： Zhang X,Feng ZJ,Chergui K

更新日期：2014-08-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Cannabidiol has been reported to act as an antagonist at cannabinoid CB1 receptors. We hypothesized that cannabidiol would inhibit cannabinoid agonist activity through negative allosteric modulation of CB1 receptors. EXPERIMENTAL APPROACH:Internalization of CB1 receptors, arrestin2 recruitment, ...

journal_title：British journal of pharmacology

authors： Laprairie RB,Bagher AM,Kelly ME,Denovan-Wright EM

更新日期：2015-10-01 00:00:00

abstract：:1 Poly (ADP-ribose) synthetase (PARS) is a nuclear enzyme activated by strand breaks in DNA, which are caused by reactive oxygen species (ROS). Here we investigate the effects of the PARS inhibitors 3-aminobenzamide (3-AB), nicotinamide and 1,5-dihydroxyisoquinoline (ISO) on the circulatory failure and the organ injur...

journal_title：British journal of pharmacology

authors： McDonald MC,Filipe HM,Thiemermann C

更新日期：1999-11-01 00:00:00

abstract：:1. Selective antagonism of the cardiac beta(1)-adrenoceptors has been studied in normal human volunteers.2. Practolol and UK 6558 produced greater antagonism of the chronotropic and inotropic responses to i.v. isoprenaline than of the vasodilator response to either i.v. or intra-arterial isoprenaline. A third drug, M&...

journal_title：British journal of pharmacology

authors： Briant RH,Dollery CT,Fenyvesi T,George CF

更新日期：1973-09-01 00:00:00

abstract：:The alpha2-adrenoceptor function in mesenteric arteries of spontaneously hypertensive rats (SHR) was investigated by comparing membrane potential changes in response to adrenergic agonists in preparations from female SHR, Wistar-Kyoto (WKY) and normotensive Wistar rats (NWR). Resting membrane potential was found to be...

journal_title：British journal of pharmacology

authors： Feres T,Borges AC,Silva EG,Paiva AC,Paiva TB

更新日期：1998-11-01 00:00:00

abstract：:1. This study examined the impact of allopurinol on the renal functional responses to a 30 min period of ischaemia in anaesthetized rats. 2. Immediately on reperfusion, blood pressure rose transiently, while renal blood flow remained stable throughout at control values. Glomerular filtration rate was decreased by some...

journal_title：British journal of pharmacology

authors： Hestin D,Johns EJ

更新日期：1999-09-01 00:00:00

abstract：:1. The radioligand binding characteristics of the 3H-derivative of the novel 5-HT3 receptor antagonist BRL46470 were investigated and directly compared to the well characterized 5-HT3 receptor radioligand [3H]-granisetron, in tissue homogenates prepared from rat cerebral cortex/hippocampus, rat ileum, NG108-15 cells, ...

journal_title：British journal of pharmacology

authors： Steward LJ,Ge J,Bentley KR,Barber PC,Hope AG,Lambert JJ,Peters JA,Blackburn TP,Barnes NM

更新日期：1995-09-01 00:00:00

abstract：:1. Therapeutic doses of colistin sulphomethate sodium B.P. (Colomycin), pento-N sulphomethylpolymyxin B sodium (Thiosporin) and ampicillin B.P. (Penbritin) as well as normal saline have been given to volunteers with normal kidney function.2. A blind crossover technique was used and the effects of the compounds on bloo...

journal_title：British journal of pharmacology

authors： Caldwell AD,Martin AJ,Trigger DJ

更新日期：1969-09-01 00:00:00

abstract：:The effects of 10 mM caffeine (CAF) on intramembrane charge movements (ICM) were studied in isolated guinea-pig ventricular heart cells with the whole-cell patch-clamp technique. In the presence of CAF, the properties (voltage dependence, maximum Q(ON) [Q(max)], availability with voltage) of Q(ON) charge activated fro...

journal_title：British journal of pharmacology

authors： Leroy J,Lignon JM,Gannier F,Argibay JA,Malécot CO

更新日期：2002-02-01 00:00:00

abstract：:1. Vasoconstrictions induced by transmural electrical field stimulation were frequency-dependent from 2 to 32 Hz in the rabbit isolated splenic artery. All contractions were abolished in the presence of tetrodotoxin 1 microM or guanethidine 100 microM. Stimulation at a frequency of more than 32 Hz induced both neuroge...

journal_title：British journal of pharmacology

authors： Ren LM,Burnstock G

更新日期：1997-02-01 00:00:00

abstract：:1. Chronic inhibition of nitric oxide synthase (NOS) provokes a hypertensive state which has been shown to be angiotensin II (Ang-II) dependent. In addition to raising blood pressure, NOS inhibition also causes leukocyte adhesion. The present study was designed to define the role of Ang-II in hypertension and in the l...

journal_title：British journal of pharmacology

authors： Alvarez A,Piqueras L,Bello R,Canet A,Moreno L,Kubes P,Sanz MJ

更新日期：2001-02-01 00:00:00