Abstract：
:(-)Baclofen, a GABAB receptor agonist, and GABA attenuated by 60% the high K+-evoked 45Ca2+ uptake into cultured cerebellar granule cells with an EC50 of 110 +/- 18 nM and 2.4 +/- 0.2 microM, respectively. The attenuation by baclofen of 45Ca2+ uptake was stereospecific and the effect of GABA was unaffected by bicuculline. Moreover, muscimol, a GABAA receptor agonist did not affect the K+-evoked 45Ca2+ uptake. (-)Baclofen and GABA also decreased the K+-evoked and calcium-dependent release of preloaded [3H]D-aspartate from granule cells; however, their potency and efficacy appeared to be less than those for inhibiting the 45Ca2+ uptake. (+)Baclofen and muscimol failed to change this K+-evoked release. The release of [3H]D-aspartate induced by the calcium ionophore A23187 was unaffected by (-)-baclofen. The K+-evoked release of [3H]D-aspartate was effectively inhibited by nimodipine, a voltage sensitive calcium channel blocker. The results suggest that GABAB receptor in cultured cerebellar granule cells plays a crucial role in modulating the uptake of calcium and release of the excitatory transmitter. Moreover, these two effects mediated by GABAB receptor activation may be casually related.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Zhu XZ,Chuang DMdoi
10.1016/0014-2999(87)90557-7subject
Has Abstractpub_date
1987-09-23 00:00:00pages
401-8issue
3eissn
0014-2999issn
1879-0712pii
0014-2999(87)90557-7journal_volume
141pub_type
杂志文章abstract：:Intravenous injection of ovalbumin into actively and passively sensitized guinea-pig resulted in acute circulatory collapse. The plasma level of immunoreactive endothelin rose from 22 +/- 2 to 40 +/- 7 fmol/ml (n = 12, P < 0.01) and 29 +/- 5 fmol/ml (n = 12, P < 0.01) in actively and passively sensitized animals, resp...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(93)91001-4
更新日期：1993-08-03 00:00:00
abstract：:The objective of the present studies was to investigate the effect of voluntary ethanol consumption for 21 days on the brain beta-endorphin system of C57BL/6 (alcohol-preferring) and DBA/2 (alcohol-avoiding) strains of mice. As expected, C57BL/6 mice consumed a significantly higher quantity of the 10% ethanol solution...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(94)90064-7
更新日期：1994-06-02 00:00:00
abstract：:Cisplatin (CDDP)-induced nephrotoxicity (CIN) is one of the most serious toxicities caused by this potent antitumor agent. It has been reported that Mg premedication attenuates CIN in clinical trials; however, the mechanism underlying its nephroprotection is not fully understood. Therefore, the aim of this study was t...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2017.05.034
更新日期：2017-09-15 00:00:00
abstract：:Kinin B1 receptors on rabbit aorta smooth muscle cells in culture were investigated. [3H]Des-Arg10-kallidin labeled a single site in cells at early passage with an equilibrium dissociation constant of 258 pM and a maximal binding density of approximately 680 sites/cell. Treatment of the same cells for 18 h with epider...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0922-4106(94)90137-6
更新日期：1994-02-15 00:00:00
abstract：:The biological properties of neurotensin (NT) and the chicken peptide [Lys8,Asn9]neurotensin-(8-13) (LANT-6) were compared in 3 in vitro assays: (1) competitive inhibition of [3H]NT binding to rat brain synaptic membranes, (2) relaxation of the rat ileum, and (3) contraction of the guinea-pig ileum. The data show that...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(84)90147-x
更新日期：1984-04-06 00:00:00
abstract：:The pharmacological properties of geissoschizine methyl ether, isolated from Uncaria sinensis Oliv., were analyzed in vitro and in vivo using mice central serotonin neurons. In the in vitro experiment, geissoschizine methyl ether inhibited [3H]8-hydroxy-2-(di-n-propylamino)tetralin) ([3H]8-OH-DPAT) (K(i)=0.8 microM), ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(01)01195-5
更新日期：2001-08-17 00:00:00
abstract：:Clomipramine is a tricyclic antidepressant for psychiatric disorders that can induce QT prolongation, which may lead to torsades de pointes. Since blockade of cardiac human ether-a-go-go-related gene (hERG) channels is an important cause of acquired long QT syndrome, we investigated the acute effects of clomipramine o...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2008.06.094
更新日期：2008-09-11 00:00:00
abstract：:The effects of intracellular and extracellular application of bretylium tosylate on outward potassium current and fast inward Na+ current have been studied in single ventricular cells of chick embryo (18-day-old) using the whole-cell voltage clamp technique. Extracellular superfusion with bretylium (3 x 10(-4) M) decr...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(88)90535-3
更新日期：1988-07-14 00:00:00
abstract：:Neuropeptides are peptides which affect the nervous system. They are derived from large precursor molecules. These are converted to neurohormones, neuropeptides of the "first generation", which can be further converted to neuropeptides of the "second generation". This review is a brief survey of the nervous system eff...
journal_title：European journal of pharmacology
pub_type： 杂志文章,评审
doi：10.1016/s0014-2999(99)00339-8
更新日期：1999-06-30 00:00:00
abstract：:The effects of the new 3,4-disubstituted furoxan, CHF 2206, on vascular tone, platelet aggregation and platelet cyclic 3',5'-guanosine monophosphate (cGMP) levels were investigated. The compound was a potent inhibitor of rabbit aortic ring contraction induced by norepinephrine, the stable prostaglandin F2 alpha analog...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(94)90077-9
更新日期：1994-04-01 00:00:00
abstract：:Edaravone is a potent scavenger of hydroxyl radicals and attenuates oxidative damage-related neurodegenerative diseases. Previous studies suggest that oxidative stress plays a key role in the pathogenesis of diabetes. The present study examined the effect of edaravone on diabetes in multiple low-dose streptozotocin-tr...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2008.01.033
更新日期：2008-03-31 00:00:00
abstract：:Dihydralazine (0.1 mg/kg), injected intravenously into male Sprague-Dawley rats, caused a decrease in mean arterial blood pressure and an increase in renal plasma flow, while urine volume remained unchanged. Dihydralazine had no effect on kallikrein excretion in the urine and on kallikrein activity in the renal cortex...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(82)90239-4
更新日期：1982-02-26 00:00:00
abstract：:Failed medical therapy is a common problem in inflammatory bowel disease. P-glycoprotein (P-gp), an efflux pump encoded by MDR1 (ABCB1) gene can actively pump drugs out of cells conferring the phenotype of multidrug resistance. Various studies evoked that cyclooxygenase (COX) system may be involved in the regulation o...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2010.03.039
更新日期：2010-06-25 00:00:00
abstract：:To investigate the mechanism underlying sulpiride-induced catalepsy, we simultaneously examined cataleptic behavior and the kinetics of the dopamine receptor antagonist, sulpiride of dopamine, and the dopamine metabolite 3,4-dihydroxyphenylacetic acid (DOPAC), using in vivo voltammetry. After intrastriatal administrat...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(97)00140-4
更新日期：1997-05-12 00:00:00
abstract：:In the presence of 3 x 10(-6) M captopril, 5 x 10(-7) M des-Asp-Angiotensin I was found to inhibit the electrically (1 and 2 Hz) induced contraction of the rabbit pulmonary artery but had no significant effect on the noradrenaline-stimulated contraction. 2.8 x 10(-6) M indomethacin and 10(-6) M losartan but not 10(-6)...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(95)00461-s
更新日期：1995-09-15 00:00:00
abstract：:Global forebrain ischemia results in damage to the pyramids in the CA1 hippocampal subfield, which is particularly vulnerable to excitotoxic processes. Morphological and functional disintegration of this area leads to a cognitive dysfunction and neuropsychiatric disorders. Treatment with N-methyl-d-aspartate receptor ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2011.05.069
更新日期：2011-09-30 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(99)00756-6
更新日期：1999-12-15 00:00:00
abstract：:SR 57746A, 4-(3-trifluoromethylphenyl)-N-[2-(naphth-2-yl)ethyl]-1,2,3,6- tetrahydropyridine HCl, was studied for its specific 5-HT1A receptor agonist action and antidepressant-like effects in the rat. The compound showed a high affinity for 5-HT1A specific binding sites in the rat hippocampus (IC50 3 nM), moderate aff...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(94)90768-4
更新日期：1994-02-21 00:00:00
abstract：:The aim of the present study was to determine the effect of a calcium channel blocker on renal function, urinary endothelin excretion and endothelin receptor number in rats. Administration of cyclosporine resulted in a significant impairment of renal function when measured by either [14C]inulin or 24 h creatinine clea...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(91)90132-a
更新日期：1991-02-26 00:00:00
abstract：:There is evidence that bovine adrenal chromaffin cells are provided with both dihydropyridine-sensitive and -resistant voltage-sensitive Ca2+ influx pathways. Although recent electrophysiological work indicates that the dihydropyridine-resistant pathway is partially mediated by omega-conotoxin-sensitive and -insensiti...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0922-4106(93)90151-x
更新日期：1993-02-15 00:00:00
abstract：:A recent study indicates that elevation of [Ca(2+)](i) enhances the release of calcein, an anionic fluorescent dye, from isolated exocrine acinar cells, so cytoplasmic calcein is useful for monitoring the secretion of organic anions. In this study, we investigated the effect of cAMP on the calcein release evoked by el...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(99)00898-5
更新日期：2000-02-04 00:00:00
abstract：:The antiatherosclerotic effect of statins has been attributed to their hypocholesterolemic action. We therefore evaluated the effect, in vitro, of the addition of the serum of patients taking fluvastatin on human smooth muscle cells in order to ascertain the effect of the drug on cell proliferation and apoptosis. We f...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(99)00122-3
更新日期：1999-04-09 00:00:00
abstract：:The effects of MP 518, an acylated 2-chlorobenzylidene hydrazidone derivative with antihypertensive properties were investigated on the Ca current, ICa, recorded under whole-cell patch-clamp in single frog ventricular cells. MP 518 (1-100 microM) had no effect on ICa under control conditions. However, at 10 microM it ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0922-4106(93)90016-3
更新日期：1993-01-15 00:00:00
abstract：:The intracerebroventricular (i.c.v.) administration of 10 micrograms of atrial natriuretic peptide (ANP) stimulated spontaneous gastric acid secretion in anaesthetized rats, whereas this dose of ANP was without any effect after i.v. injection. The secretagogue action of i.c.v. administered ANP was totally abolished by...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(87)90572-3
更新日期：1987-09-23 00:00:00
abstract：:St. John's wort (Hypericum perforatum L.) is widely used for the treatment of mild to moderately severe depression. However, the nature of its active principles and the exact mode of antidepressant action are still unknown. It has been suggested repeatedly in preclinical and clinical studies that the content of the ac...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(02)02818-2
更新日期：2003-01-05 00:00:00
abstract：:Liver failure altered P-glycoprotein (P-gp) function and expression at blood-brain barrier (BBB), partly owing to hyperammonemia. We aimed to examine the effects of partial portal vein ligation (PVL) plus chronic hyperammonemia (CHA) on P-gp function and expression at rat BBB. Experimental rats included sham-operation...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2019.01.005
更新日期：2019-03-05 00:00:00
abstract：:The potencies for in vivo inhibition of substantia nigra pars compacta dopamine single cell firing were determined for apomorphine, BHT 920, N-0923, (+/-)-7-hydroxy-dipropylaminotetralin (7-OH-DPAT), (+)-3-(3-hydroxyphenyl)-N-propylpiperidine (3-PPP), pramipexole, quinelorane, quinpirole, RU 24926, U-86170, and U-9135...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(95)00069-w
更新日期：1995-04-24 00:00:00
abstract：:We studied the effects of 2-(allyl-1-piperazinyl)-4-n-amyloxyquinazoline fumarate (KB-5666) on brain edema and histological neuronal damage in rats with focal ischemia and on lipid peroxidation in brain homogenates and brain mitochondria in vitro. KB-5666 (3-100 microM) inhibited lipid peroxidation in brain homogenate...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(91)90367-y
更新日期：1991-05-02 00:00:00
abstract：:Histone deacetylases (HDACs) can regulate cancer progression and its inhibitors (HDACIs) have been widely used for cancer therapy. Valproic acid (VPA, 2-propylpentanoic acid) can inhibit the class I HDAC and suppress the malignancy of solid cancers. Our present study revealed that 1 mM VPA, which has no effect on cell...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2019.172745
更新日期：2019-12-15 00:00:00
abstract：:Administration of the 5-HT1C/5-HT2 receptor agonist 1-(2,5-dimethoxy-4- iodophenyl)-2-aminopropane (DOI, 0.125-2.0 mg/kg i.v.) triggered dose-dependent increases in plasma glucose; plasma insulin levels remained unchanged. Pretreatment with the 5-HT1C/5-HT2 receptor antagonists LY 53857, ritanserin, or the mixed 5-HT2...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(90)90370-l
更新日期：1990-10-23 00:00:00
