Abstract：
:The effect of the non-selective antagonist of excitatory amino acid receptors kynurenic acid (50, 100 and 150 mg/kg, i.p.) on morphine-derived reward was studied in rats. Kynurenic acid dose dependently blocked the acquisition of morphine conditioned place preference when injected before conditioning. The expression of the previously established conditioned behavior was also blocked by the pretreatment with kynurenic acid (at the doses which do not reduce spontaneous locomotor activity) before testing. In the control experiments we failed to find that kynurenic acid alone exerts positive place preference conditioning or aversion. Kynurenic acid also attenuated the morphine-induced facilitation of responding in the intracranial self-stimulation test, causing a decrease in response rate and an increase in threshold current intensity. This effect was observed with doses at which kynurenic acid does not affect responding in the self-stimulation test by itself.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Bespalov A,Dumpis M,Piotrovsky L,Zvartau Edoi
10.1016/0014-2999(94)00462-5subject
Has Abstractpub_date
1994-11-03 00:00:00pages
233-9issue
3eissn
0014-2999issn
1879-0712pii
0014-2999(94)00462-5journal_volume
264pub_type
杂志文章abstract：:The spontaneous and electrically evoked activity was examined in guinea-pig, ferret and marmoset urinary bladder. Electrical field stimulation of detrusor strips in vitro induced a rapid, frequency-dependent contraction with a maximum response at 40 Hz. This contraction was partly decreased by either atropine (0.29 mi...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(85)90375-9
更新日期：1985-08-27 00:00:00
abstract：:Internal and external carotid vascular resistances were measured, in anaesthetized monkeys, to asses the direct cranial vascular effects of i.v. methysergide, pizotifen and ergotamine, and their effects on the cranial vascular responses to the constrictors 5-hydroxytryptamine and noradrenaline and the dilators histami...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(78)90038-9
更新日期：1978-03-01 00:00:00
abstract：:Interleukin-8 is assumed to play a central role in the pathogenesis of psoriasis. Since an increased expression of the interleukin-8 receptor has been observed both in polymorphonuclear leukocytes and in affected psoriatic epidermis, we were interested in whether the interleukin-8 receptor could be a molecular target ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(94)90490-1
更新日期：1994-06-13 00:00:00
abstract：:To investigate a possible role of 8-isoprostaglandin F2alpha in inflammation, 8-isoprostaglandin F2alpha and prostaglandin E2 levels were determined by enzyme immunoassay (EIA) in carrageenan-induced air pouch model in rats. In this model, 8-isoprostaglandin F2alpha and prostaglandin E2 levels were found to be increas...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2004.10.050
更新日期：2004-12-15 00:00:00
abstract：:1-Phenyl-3-(2-thiazolyl)-2-thiourea (200 mg/kg, 1 h) protected the adrenergic nerve plexus in the mouse atrium against the destructive action of i.v. 5,7-dihydroxytryptamine. Protection was also observed with ethanol (4 g/kg, 1 h) and with nialamide (50 mg/kg, 2 h). ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(77)90026-7
更新日期：1977-06-01 00:00:00
abstract：:Termination of signalling by G-protein-coupled receptors requires inactivation of the G alpha-subunits of heterotrimeric G-proteins and the re-association of G alpha- and G betagamma-subunits. Inactivation of G alpha-subunits is achieved by the hydrolysis of bound GTP by an intrinsic GTPase activity, which is consider...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2008.03.047
更新日期：2008-06-10 00:00:00
abstract：:Normal human blood platelets in plasma were incubated at 2 degrees C with tritiated 5-hydroxytryptamine ([3H]5HT), and the specific receptor binding was displaced by the addition of unlabelled 5HT. The kinetic parameters of this binding were established and a two-site model for the platelet 5HT receptor demonstrated. ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(80)90522-1
更新日期：1980-12-05 00:00:00
abstract：:The protective action of zinc compounds in Crohn's disease-like inflammatory bowel disease in animals has been shown. A similar action of zinc sulfate on ulcerative colitis has not been defined. The present study aimed to delineate the protective action of zinc sulfate and the pathogenic mechanisms of 2,4-dinitrobenze...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(02)01592-3
更新日期：2002-05-17 00:00:00
abstract：:Agonists of adenosine A1 receptors have been frequently proposed as candidates for clinical development in treatment of cerebral ischemia and stroke. Numerous experimental studies have shown that pre- and postischemic administration of these drugs results in a very significant reduction of postischemic brain damage. H...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(96)00101-x
更新日期：1996-04-29 00:00:00
abstract：:High fat diet, as an important risk factor, plays a pivotal role in atherosclerotic process. Celastrol is one of the active triterpenoid compounds with antioxidative and anti-inflammatory characters. The aims of this study were to evaluate the effect of celastrol on weight, blood lipid and oxidative injury induced by ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2014.09.043
更新日期：2014-12-05 00:00:00
abstract：:The effect of diethyldithiocarbamate (DETC, 10(-3) M) on the vasorelaxant activity of acetylcholine, nitric oxide (NO), nitrite, glyceryl trinitrate or dinitrosyl iron cysteine complexes was studied in isolated rat aortic rings contracted with norepinephrine. Pretreatment of these segments with DETC attenuated the vas...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(92)90085-i
更新日期：1992-02-25 00:00:00
abstract：:The effect of systemic administration of the nonselective dopamine receptor agonist apomorphine on efflux of serotonin (5-hydroxytryptamine, 5-HT) in striatum and hippocampus of freely moving rats was examined using in vivo microdialysis. 5-HT efflux was increased by a moderate dose of apomorphine sufficient for a pos...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(98)00321-5
更新日期：1998-06-26 00:00:00
abstract：:We have monitored the binding of [125I]thienylphencyclidine ([125I]TCP), a novel high affinity radioiodinated ligand that specifically recognizes the NMDA (N-methyl-D-aspartate) receptor in rat brain membranes. [125I]TCP binds with an affinity of about 30 nM, and recognizes a similar number of binding sites to previou...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0922-4106(92)90082-7
更新日期：1992-05-12 00:00:00
abstract：:Preparations of cauda epididymides were taken from rats unilaterally vasectomised by medial transection of the vas deferens. Responses of preparations from the operated side to field stimulation (10 pulses, 70 V, 1 ms, 0.1-20 Hz) declined in parallel with decreases in catecholamine fluorescence. There were leftward sh...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(89)90315-4
更新日期：1989-12-19 00:00:00
abstract：:Stimulation of the right trigeminal ganglion in pentobarbital anaesthetised rats increased mean arterial blood pressure and decreased right carotid vascular resistance but had no effect on left carotid vascular resistance. Sumatriptan (0.3 mg/kg i.v.) pretreatment did not significantly affect basal levels or stimulati...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(95)00231-9
更新日期：1995-07-25 00:00:00
abstract：:Corticotropin-releasing factor (CRF) is a neurohormone that mediates stress, anxiety, and affects serotonergic activity. Studies have shown that CRF has dose-dependent opposing effects on serotonergic activity. This effect has been hypothesized to be differentially mediated by CRF(1) and CRF(2) receptors in the dorsal...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2007.09.024
更新日期：2008-01-14 00:00:00
abstract：:H89 (N-[2-(p-bromocinnamylamino)ethyl]-5-isoquinolinesulfonamide) is a compound characterized in vitro as a potent and selective inhibitor of protein kinase A (PKA). In this study, we found that H89 reduced the phosphorylation of the myosin regulatory light chain (MRLC) at Thr-18/Ser-19 and induced disassembly of stre...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2008.05.029
更新日期：2008-08-20 00:00:00
abstract：:We investigated the role of hippocampal group I metabotropic glutamate receptors (mGlu(1) receptors) in the retrieval process of spatial memory using 8-arm radial maze performance with 4 arms baited. In addition, the participation of the cholinergic system in memory deficits induced by mGlu(1) receptors antagonist was...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2007.07.010
更新日期：2007-12-01 00:00:00
abstract：:The nuclear transcription factors kappaB (NF-kappaB) function as key regulators of physiological processes in the central nervous system. Aberrant regulation of NF-kappaB can underlie neurological disorders associated with neurodegeneration. A large number of studies have reported a dual role of NF-kappaB in regulatin...
journal_title：European journal of pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.ejphar.2006.06.027
更新日期：2006-09-01 00:00:00
abstract：:Effects of nitric oxide (NO) and NO-producing vasodilators such as glyceryl trinitrate and sodium nitroprusside were tested on DNA synthesis in the clonal rat aortic smooth muscle cells, RACS-1. DNA synthesis was estimated by [3H]thymidine incorporation to DNA. NO and NO-producing vasodilators inhibited the DNA synthe...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0922-4106(90)90031-r
更新日期：1990-12-15 00:00:00
abstract：:(5R,6R)-6-(3-Propylthio-1,2,5-thiadiazol-4-yl)-1-azabicyclo[ 3.2.1]octane (PTAC) is a selective muscarinic receptor ligand. The compound exhibits high affinity for central muscarinic receptors with partial agonist mode of action at muscarinic M(2) and M(4) and antagonist mode of action at muscarinic M(1), M(3) and M(5...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(00)00442-8
更新日期：2000-08-25 00:00:00
abstract：:The gastric anti-secretagogue effects of cimetidine (a histamine H2-receptor antagonist) and of atropine (a non-selective muscarinic receptor antagonist) and pirenzepine (a selective muscarinic M1-receptor antagonist) were examined in conscious gastric fistula rats both under basal conditions and after stimulation wit...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(87)90436-5
更新日期：1987-06-19 00:00:00
abstract：:The nicotinic acetylcholine receptors in the rat stomach were characterized by means of a radioligand binding assay with (-)-[3H]nicotine as ligand. Saturation binding studies on the gastric fundus membranes revealed the presence of two binding sites with dissociation constant (KD) values of 3.1 and 289 nM, and maximu...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(88)90490-6
更新日期：1988-01-27 00:00:00
abstract：:The effect of genistein, a tyrosine kinase inhibitor, on nitroglycerin-induced relaxation was examined in rat aortic rings contracted by phenylephrine. In rat aortic rings, genistein (10(-5) M and 3x10(-5) M), a tyrosine kinase inhibitor, but not daidzein, an analogue of genistein, increased relaxation induced by nitr...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(99)00412-4
更新日期：1999-07-21 00:00:00
abstract：:Germacrone is one of the main bioactive components in the traditional Chinese medicine Rhizoma curcuma. In this study, the anti-proliferative effect of germacrone on the human hepatoma cell lines and the molecular mechanism underlying the cytotoxicity of germacrone were investigated. Treatment of human hepatoma cell l...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2012.10.013
更新日期：2013-01-05 00:00:00
abstract：:(-)-Trans-epsilon-viniferin (epsilon-viniferin, 5-200 microM), a dimer of resveratrol, concentration-dependently inhibited the uptake of [3H]noradrenaline and [3H]5-HT by synaptosomes from rat brain (being slightly but significantly more selective against [3H]noradrenaline) and the uptake of [3H]5-HT by human platelet...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2006.06.005
更新日期：2006-08-07 00:00:00
abstract：:Methylxanthines increase central noradrenergic turnover by an unknown mechanism. Isobutyl methylxanthine (IBMX, 0.5-16 mg/kg i.v.) was found in this study to increase firing rats of noradrenergic neurons in the locus coeruleus, supporting increased impulse flow as one possible mechanism for increased noradrenergic tur...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(82)90430-7
更新日期：1982-11-05 00:00:00
abstract：:Cerebral ischemia impairs physiological form of synaptic plasticity such as long-term potentiation (LTP). Clinical symptoms of cognitive dysfunction resulting from cerebral ischemia are associated with neuron loss and synaptic function impairment in hippocampus. It has been widely reported that cordycepin displays neu...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2019.04.015
更新日期：2019-06-15 00:00:00
abstract：:Interleukin-6 (IL-6) is a key proinflammatory cytokine which plays a central role in the pathogenesis of periodontal disease. Host modulatory agents targeting at inhibiting IL-6, therefore, appear to be beneficial in slowing the progression of periodontal disease and potentially reducing destructive aspects of the hos...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2014.02.008
更新日期：2014-04-15 00:00:00
abstract：:The renal vascular effects of dopaminomimetics were studied in the isolated perfused rat kidney after pretreatment with 10(-5) M phenoxybenzamine and 10(-5) M sotalol and after contraction of the vascular bed with prostaglandin F2 alpha (10(-7) to 3 x 10(-6) M). Under these conditions, our criterion for vascular dopam...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(82)90157-1
更新日期：1982-10-15 00:00:00
