Differential effects of hydroxocobalamin on NO-mediated relaxations in rat aorta and anococcygeus muscle.

abstract：BACKGROUND AND PURPOSE:Sulphatides are sulphated glycosphingolipids expressed on the surface of many cell types, particularly neurones. Changes in sulphatide species or content have been associated with epilepsy and Alzheimer's disease. As the large conductance, calcium sensitive K(+) channel (BK(Ca)) are modulated by ...

journal_title：British journal of pharmacology

authors： Chi S,Qi Z

更新日期：2006-12-01 00:00:00

abstract：:We investigated the rate of penetration into and the intra-relationship between the serum, cerebrospinal fluid (CSF) and regional brain extracellular fluid (bECF) compartments following systemic administration of lamotrigine in rat. The serum pharmacokinetics were biphasic with an initial distribution phase, (half-lif...

journal_title：British journal of pharmacology

authors： Walker MC,Tong X,Perry H,Alavijeh MS,Patsalos PN

更新日期：2000-05-01 00:00:00

abstract：:1. The subtype of alpha1-adrenoceptor mediating contractions to phenylephrine of the rat thoracic aorta, mesenteric artery and pulmonary artery were investigated by use of antagonists which show selectivity between the cloned alpha1-adrenoceptor subtypes in binding studies. 2. Cumulative concentration-contraction curv...

journal_title：British journal of pharmacology

authors： Hussain MB,Marshall I

更新日期：1997-11-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Depolarization-induced suppression of inhibition (DSI) and excitation (DSE) are two forms of cannabinoid CB(1) receptor-mediated inhibition of synaptic transmission, whose durations are regulated by endocannabinoid (eCB) degradation. We have recently shown that in cultured hippocampal neurons mon...

journal_title：British journal of pharmacology

authors： Straiker A,Wager-Miller J,Hu SS,Blankman JL,Cravatt BF,Mackie K

更新日期：2011-11-01 00:00:00

abstract：:1. The purpose of this study was to compare the pharmacological properties (i.e. the AV nodal depressant, vasodilator, and inotropic effects) of two AV nodal blocking agents belonging to different drug classes; a novel A1 adenosine receptor (A1 receptor) agonist, N-(3(R)-tetrahydrofuranyl)-6-aminopurine riboside (CVT-...

journal_title：British journal of pharmacology

authors： Snowdy S,Liang HX,Blackburn B,Lum R,Nelson M,Wang L,Pfister J,Sharma BP,Wolff A,Belardinelli L

更新日期：1999-01-01 00:00:00

abstract：:1. An investigation into the effects of cholecystokinin octapeptide (CCK-8S) and its pentapeptide analogue, pentagastrin, on neurones located in ventromedial nuclei of rat hypothalamic slices maintained in vitro has been undertaken. 2. CCK-8S (0.01-1.0 microM) applied in the perfusion medium produced a concentration-d...

journal_title：British journal of pharmacology

authors： Boden P,Hill RG

更新日期：1988-05-01 00:00:00

abstract：:1. The effects of several agonists of the metabotropic glutamate receptor (mGluR) were studied in adult rat striatal slices by measuring (i) KCl (30 mM)-induced output of previously taken up D-[3H]-aspartate (Asp), (ii) forskolin (30 microM)-induced adenosine 3':5'-cyclic monophosphate (cyclic AMP) accumulation and (i...

journal_title：British journal of pharmacology

authors： Lombardi G,Alesiani M,Leonardi P,Cherici G,Pellicciari R,Moroni F

更新日期：1993-12-01 00:00:00

abstract：:1. Rabbit isolated irides were loaded with [3H]-noradrenaline and superfused with Tyrode solution. The inhibition by the muscarinic agonists (+/-)-methacholine and pilocarpine of the [3H]-noradrenaline overflow into the superfusate evoked by field stimulation (pulses of 1 ms duration, 75 mA) was measured as an index o...

journal_title：British journal of pharmacology

authors： Bognar IT,Pallas S,Fuder H,Muscholl E

更新日期：1988-07-01 00:00:00

abstract：BACKGROUND AND PURPOSE:An influx drug/proton antiporter of unknown structure has been functionally demonstrated at the blood-brain barrier. This transporter, which handles some psychoactive drugs like diphenhydramine, clonidine, oxycodone, nicotine and cocaine, could represent a new pharmacological target in drug addic...

journal_title：British journal of pharmacology

authors： Chapy H,Goracci L,Vayer P,Parmentier Y,Carrupt PA,Declèves X,Scherrmann JM,Cisternino S,Cruciani G

更新日期：2015-10-01 00:00:00

abstract：:The effect of nicotine on the bioformation of prostacyclin (PGI2) and of thromboxane (Tx)B2 in rabbit aorta and platelets, respectively, was investigated. Rabbit aortic rings were incubated with [14C]-arachidonic acid ( [14C]-AA) and the incubation products were separated with thin layer chromatography (t.l.c.). Alter...

journal_title：British journal of pharmacology

authors： Alster P,Wennmalm A

更新日期：1984-01-01 00:00:00

abstract：:1. [35S]t-butylbicyclophosphorothionate (TBPS) is a high affinity ligand for the picrotoxin site of GABA(A) receptors. Here we examined TBPS binding to the cloned receptors made of alpha 1, alpha 3 or alpha 6 in combination with beta 2 or beta 2 and gamma 2 subunits, in the presence of GABA and several allosteric liga...

journal_title：British journal of pharmacology

authors： Im WB,Pregenzer JF,Thomsen DR

更新日期：1994-08-01 00:00:00

abstract：:The aim of this study was to characterize the angiotensin II receptors in isolated uterine arteries from non pregnant and pregnant rats, since it has been reported from binding studies that ovine uterine arteries contain AT2 receptors. Uterine arterial segments were obtained from virgin, non-pregnant and late pregnant...

journal_title：British journal of pharmacology

authors： Zwart AS,Davis EA,Widdop RE

更新日期：1998-12-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Much interest is currently being focused on the anti-nociceptive effects mediated by nicotinic acetylcholine (nACh) receptors, including their location and mechanism of action. The purpose of this study was to elucidate these issues using 5-iodo-3-(2(S)-azetidinylmethoxy)pyridine (5IA), a nACh re...

journal_title：British journal of pharmacology

authors： Ueda M,Iida Y,Tominaga A,Yoneyama T,Ogawa M,Magata Y,Nishimura H,Kuge Y,Saji H

更新日期：2010-03-01 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

abstract：:1. The effects of intravenous administration of two alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA) antagonists were studied on responses of single neurones to iontophoretically applied excitatory amino acids. The tests were performed on spinal neurones in alpha-chloralose anaesthetized, spinalized rat...

journal_title：British journal of pharmacology

authors： Chizh BA,Cumberbatch MJ,Headley PM

更新日期：1994-07-01 00:00:00

abstract：:The effects of a new selective beta1-adrenoceptor agonist, (--)-1-(4-hydroxyphenoxy)-3-isopropyl-amino-propanol-2-hydrochloride (H 133/22), on amylase secretion from the rat parotid gland were investigated in an in vitro system. The results were compared to the secretory responses obtained with noradrenaline, adrenali...

journal_title：British journal of pharmacology

authors： Carlsöö B,Danielsson A,Henriksson R

更新日期：1978-03-01 00:00:00

abstract：:1. The effects of pregnancy on mesenteric arterial function were examined in constantly perfused (5 ml min-1) mesenteric arterial beds isolated from 21-day pregnant rats. The function of sympathetic and sensory-motor perivascular nerves, endothelium and smooth muscle was examined. The role of nitric oxide and prostagl...

journal_title：British journal of pharmacology

authors： Ralevic V,Burnstock G

更新日期：1996-04-01 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：:Lipocortin (annexin) 1 is a putative mediator of the inflammatory effects of glucocorticoids. By flow cytometric analysis (FACS) we have studied the effect of dexamethasone on the cellular localization of lipocortin 1. U-937 cells were incubated with or without 10 nM phorbol 12-myristate 13-acetate (PMA) to induce cel...

journal_title：British journal of pharmacology

authors： Solito E,Nuti S,Parente L

更新日期：1994-06-01 00:00:00

abstract：:1 The D3 dopamine receptor presumably activates Gi/Go subtypes of G-proteins, like the structurally analogous D2 receptor, but its signalling targets have not been clearly established due to weak functional signals from cloned receptors as heterologously expressed in mostly non-neuronal cell lines. 2 In this study, re...

journal_title：British journal of pharmacology

authors： Zaworski PG,Alberts GL,Pregenzer JF,Im WB,Slightom JL,Gill GS

更新日期：1999-11-01 00:00:00

abstract：:1. We have investigated the cellular target of K(+) channel blockers responsible for the inhibition of the EDHF-mediated relaxation in the rat mesenteric artery by studying their effects on tension, smooth muscle cell (SMC) membrane potential and endothelial cell Ca(2+) signal ([Ca(2+)](endo)). 2. In arteries contract...

journal_title：British journal of pharmacology

authors： Ghisdal P,Morel N

更新日期：2001-11-01 00:00:00

abstract：:The interaction of ketamine with the 5-HT3 receptor of rabbit nodose ganglion neurones is described. Ketamine (3-30 microM) enhanced 5-HT3 receptor-mediated currents recorded under voltage-clamp conditions. This action did not appear to be related to the known effect of ketamine of inhibiting 5-HT uptake. ...

journal_title：British journal of pharmacology

authors： Peters JA,Malone HM,Lambert JJ

更新日期：1991-07-01 00:00:00

abstract：AIMS:The trace amine-associated receptor (Taar) family displays high species- and subtype-specific pharmacology. Several trace amines such as β-phenylethylamine (β-PEA), p-tyramine and tryptamine are agonists at TA(1) but poorly activate rat and mouse Taar4. PRINCIPAL RESULTS:Using rat TA(1) and Taar4 chimera, we id...

journal_title：British journal of pharmacology

authors： Stäubert C,Bohnekamp J,Schöneberg T

更新日期：2013-03-01 00:00:00

abstract：BACKGROUND AND PURPOSE:In addition to typical GPCR kinase (GRK)-/β-arrestin-dependent internalization, dopamine D3 receptor employed an additional GRK-independent sequestration pathway. In this study, we investigated the molecular mechanism of this novel sequestration pathway. EXPERIMENTAL APPROACH:Radioligand binding...

journal_title：British journal of pharmacology

authors： Min C,Zheng M,Zhang X,Caron MG,Kim KM

更新日期：2013-11-01 00:00:00

abstract：BACKGROUND AND PURPOSE:The aim of this study was to identify the actions of H(2)S on ion transport across rat distal colon. EXPERIMENTAL APPROACH:Changes in short-circuit current (Isc) induced by the H(2)S-donor, NaHS, were measured in Ussing chambers. Cytosolic Ca(2+) concentration was evaluated using fura-2. KEY RE...

journal_title：British journal of pharmacology

authors： Hennig B,Diener M

更新日期：2009-11-01 00:00:00

abstract：:The peptides, neurotensin, substance P, somatostatin, and bombesin, several analogues and fragments of neurotensin and compound 48/80, all caused the secretion of both endogenous 5-hydroxytryptamine (5-HT) and histamine. There was no differential effect of any of the secretagogues tested on the secretion of 5-HT and h...

journal_title：British journal of pharmacology

authors： Carraway RE,Cochrane DE,Granier C,Kitabgi P,Leeman E,Singer EA

更新日期：1984-02-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Normal pregnancy is associated with decreased vascular resistance and increased release of vasodilators. Endothelin-1 (ET-1) causes vasoconstriction via endothelin receptor type A (ET(A)R), but could activate ET(B)R in the endothelium and release vasodilator substances. However, the roles of ET(B...

journal_title：British journal of pharmacology

authors： Mazzuca MQ,Dang Y,Khalil RA

更新日期：2013-07-01 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 variation with clock-hour in the behaviour of naive rats in a Y-maze has been recorded.2. The number of entries recorded was highest during the light period while the number of faecal boluses was highest during the dark period. Rearing showed a biphasic periodicity.3. The responses to LSD, mescaline and ampheta...

journal_title：British journal of pharmacology

authors： Davies JA,Redfern PH

更新日期：1973-09-01 00:00:00

abstract：:1 The actions of prostaglandin F2 alpha (PGF2 alpha) and noradrenaline on contraction and 45Ca exchange have been studied in rat mesenteric arteries. 2 PGF2 alpha and noradrenaline contracted rat isolated mesenteric artery preparations to about the same extent. The PGF2 alpha-stimulated contractions, unlike those prod...

journal_title：British journal of pharmacology

authors： Godfraind T,Miller RC

更新日期：1982-01-01 00:00:00