Abstract：
:The effects of alpha 1-adrenergic stimulation on intracellular pH (pHi) and Ca2+ concentration ([Ca2+]i) were investigated in isolated rat cardiomyocytes with fluorescence dyes, BCECF and fura-2, respectively. In the presence of 5 or 25 mM HCO3- norepinephrine (NE) increased pHi in a dose-dependent manner. Intracellular alkalinization was inhibited by prazosin and phentolamine but not by yohimbine. NE-induced alkalinization was inhibited in the presence of a Na+/H+ exchange inhibitor (5-(N,N-hexamethylene) amiloride (HMA)), a C kinase inhibitor (H-7) or a calmodulin inhibitor (W-7), or in the absence of extracellular Na+. NE also increased [Ca2+]i following the pHi increase, which was abolished in the absence of extracellular Na+ or Ca2+. This Ca2+ influx was inhibited by HMA but not by diltiazem (10(-5) M). Thus, we conclude that alpha 1-adrenergic stimulation enhances Na+/H+ exchange by activation of C kinase, thereby allowing intracellular alkalinization, and that subsequent activation of Na+/Ca2+ exchange increases Ca2+ influx.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Iwakura K,Hori M,Watanabe Y,Kitabatake A,Cragoe EJ Jr,Yoshida H,Kamada Tdoi
10.1016/0014-2999(90)94057-5subject
Has Abstractpub_date
1990-09-04 00:00:00pages
29-40issue
1eissn
0014-2999issn
1879-0712pii
0014-2999(90)94057-5journal_volume
186pub_type
杂志文章abstract：:The vasoinhibitory effects of MCI-154 (MCI), a new pyridazione derivative, on contractile responses to alpha 1- and alpha 2-adrenoceptor agonists were examined in isolated rabbit aorta. MCI (10(-8)-10(-5) M) inhibited the maximum contractile responses to clonidine and BHT-920 (BHT) in a concentration-dependent manner,...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(88)90222-1
更新日期：1988-01-12 00:00:00
abstract：:Opiates impair neutrophil-mediated host defense, but the involvement of kappa-opioid receptors in this action has not been defined. The selective kappa-opioid receptor agonist [trans-(+)3,4-dichloro-N-methyl-N[2-(1-pyrrolidinyl)-cyclohexyl]benzeneacetamide methanesulfonate inhibited macrophage inflammatory protein-2-i...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(01)00727-0
更新日期：2001-03-02 00:00:00
abstract：:The effect of NIK-247 on carbon monoxide (CO)-induced amnesia were investigated. A step-down type passive avoidance task with mice was used to compare the effects of NIK-247 with those of tacrine. Two types of CO-induced amnesia model, acute and delayed models, were used. The acute amnesia model was developed using mi...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(92)90125-n
更新日期：1992-04-22 00:00:00
abstract：:In pithed rats, we studied the effects of prostaglandin E2 and of subtype-selective prostaglandin E receptor (EP receptor) ligands on the rise in blood pressure induced by electrical stimulation of the preganglionic sympathetic nerves. Prostaglandin E2, the EP1/EP3 receptor agonist sulprostone and the EP2/EP3 receptor...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(94)90660-2
更新日期：1994-07-11 00:00:00
abstract：:Adrenomedullin administered peripherally in the rabbit (at doses of 1.25, 2.5 and 5 microg/kg ) caused a dose-dependent conjunctival hyperemia accompanied by an increase of inflammatory cell number and prostaglandin E(2) concentration in the aqueous humor, and of uveal vascular response and myeloperoxidase activity. T...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(00)00376-9
更新日期：2000-07-21 00:00:00
abstract：:Compound (+)-R,R-D-84 is an optically active trans-hydroxy-substituted derivative of 4-(2-benzhydryloxy-ethyl)-1-(4-fluorobenzyl)piperidine (D-164). As a hydroxypiperidine analog of GBR 12935, (+)-R,R-D-84 is a candidate dopamine transporter compound for the treatment of cocaine dependence. The present work addresses ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2004.10.028
更新日期：2004-12-03 00:00:00
abstract：:High pressure liquid chromatography (HPLC) combined with radiochemical detection was used to show that [3H]noradrenaline (NA) and [14C]ATP were released concomitantly during field stimulation of the rat vas deferens. The release of radioactivity (3H and 14C) in response to three consecutive field stimulations was cons...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(88)90254-3
更新日期：1988-12-06 00:00:00
abstract：:The in vitro biological characterisation of the first potent and selective non-peptide neuropeptide Y Y(2) receptor antagonist, (S)-N(2)-[[1-[2-[4-[(R,S)-5,11-dihydro-6(6h)-oxodibenz[b, e]azepin-11-yl]-1-piperazinyl]-2-oxoethyl] cylopentyl] acetyl]-N-[2-[1,2-dihydro-3,5(4H)-dioxo-1,2-diphenyl-3H-1,2, 4-triazol-4-yl]et...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(99)00650-0
更新日期：1999-11-19 00:00:00
abstract：:The intracerebroventricular injection of neosurugatoxin (2 x 3.2 micrograms) significantly reduced the specific binding of [3H]nicotine but not of [3H]cismethyldioxolane in the cerebral cortex, hippocampus and thalamus of rats 3 days after the toxin injection. Scatchard analysis of [3H]nicotine binding in the rat cere...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(88)90333-0
更新日期：1988-11-01 00:00:00
abstract：:In isolated heart muscle, the compound R56865 (N-[1-[4-(4-fluorophenoxy)butyl]-4-piperidinyl]-N-methyl-2- benzothiazolamine) has been shown to protect against intoxication by cardiac glycosides. We studied the influence of R56865 on various membrane currents in single isolated ventricular cardiomyocytes of the guinea-...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(90)90010-4
更新日期：1990-10-09 00:00:00
abstract：:Rheumatoid Arthritis is a chronic autoimmune disease with a complex disease pathogenesis leading to inflammation and destruction of synovial tissue in the joint. Several molecules lead to activation of immune pathways, including autoantibodies, Toll-Like Receptor ligands and cytokines. These pathways can cooperate to ...
journal_title：European journal of pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.ejphar.2015.03.085
更新日期：2016-05-05 00:00:00
abstract：:Calcitonin gene-related peptide (CGRP) is extensively distributed in primary afferent sensory nerves, including those innervating the genitourinary tract. Capsaicin can stimulate the release of CGRP from intracellular stores of these nerves, but this phenomenon has not been investigated in-depth in isolated preparatio...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2011.06.031
更新日期：2011-09-30 00:00:00
abstract：:Ovarian cancer (OC) is a major cause of cancer-related deaths in women all over the world. The easy metastasis of OC and the problem of radioresistance are serious issues remaining to be overcome. Thus, research on molecular mechanisms underlying is in urgent demand. Long non-coding RNAs (lncRNAs) are a class of RNAs ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2019.03.002
更新日期：2019-06-05 00:00:00
abstract：:Intracellular accumulation of calcium is thought to play an integral role in the progression of ischemic injury and cell death. We infused the calcium entry blocker, nitrendipine (1.5 micrograms/kg per min), into cats in order to investigate the importance of extracellular Ca2+ influx during hemorrhagic shock. Nitrend...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(84)90510-7
更新日期：1984-01-13 00:00:00
abstract：:Clonidine and other imidazolines, including phentolamine, inhibited the norepinephrine-elicited accumulation of cyclic AMP in brain slices via blockade or postsynpatic alpha-adrenoceptors. Clonidine (0.0125--0.050 mg/kg, i.p.) antagonized the increase in locomotor activity induced by amphetamine in a dose-dependent ma...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(78)90126-7
更新日期：1978-02-15 00:00:00
abstract：:In Krebs solution (3.36 mM Ca2+), the maximal contractile response of human ileal and urinary bladder detrusor muscle to acetylcholine (ACh) was 40-60% that to carbachol (CCh). The maximum response to ACh was reached at a bath concentration of about 1 microM and was maintained throughout a range extending to 100 micro...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(86)90698-9
更新日期：1986-04-09 00:00:00
abstract：:The beta-antagonistic effects of celiprolol were assessed in isolated guinea-pig preparations. The pA2 values obtained were 7.84 +/- 0.07, 7.79 +/- 0.06 and 6.45 +/- 0.11 against the positive chronotropic and inotropic effects in the atria and relaxant effects in the trachea induced by isoproterenol, respectively, ind...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(91)90115-7
更新日期：1991-02-26 00:00:00
abstract：:Galectins are carbohydrate-binding proteins and these have very high affinity for β-galactoside containing glycoproteins and glycolipids. Amongst sixteen types of galectin, the role of galectin 1, 3, 9 and 12 is defined in the development and progression of different types of leukemia including acute myeloid leukemia,...
journal_title：European journal of pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.ejphar.2018.11.019
更新日期：2019-02-05 00:00:00
abstract：:Mouse GluK5 was expressed in Sf9 insect cells and radiolabelled with [(3)H]-kainate in receptor binding assays (Kd=6.9nM). Western immunoblotting indicated an Sf9 GluK5 band doublet corresponding to the glycosylated (128kDa) and deglycosylated (111kDa) protein, which was identical to the band pattern of native rat bra...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2016.06.049
更新日期：2016-10-05 00:00:00
abstract：:Adjuvant-induced arthritis is associated with body weight loss and decreased pituitary growth hormone (GH) and hepatic insulin-like growth factor-I (IGF-I) synthesis. Cytokines as tumor necrosis factor (TNF) mediate wasting associated with chronic inflammation. The aim of this study was to analyse whether the inhibiti...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2006.02.035
更新日期：2006-04-24 00:00:00
abstract：:The present study has examined the functional activity of the 5-HT1D receptor agonist, sumatriptan, and antagonists, GR127935 (2'-methyl-4'-(5-methyl-[1,2,4]oxadiazol-3-yl)-biphenyl-4-carboxyl ic acid [4-methoxy-3-(4-methyl-piperazin-1-yl)-phenyl]-amide), GR55562 (3-[3-(dimethylamino)propyl]-4-hydroxy-N-[4-(4-pyridiny...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(95)00612-1
更新日期：1995-12-04 00:00:00
abstract：:The existence of presynaptic autoreceptors modulating acetylcholine release from central cholinergic nerve endings was investigated by using rat hippocampal synaptosomes in a superfusion system. The presence of exogenous acetylcholine, carbachol or oxotremorine in the superfusion fluid produced a dose-dependent inhibi...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(81)90147-3
更新日期：1981-07-17 00:00:00
abstract：:Using radioligand binding techniques and human frontal cortex, we determined the equilibrium dissociation constants (KDs) of 17 neuroleptics at the serotonin 5-HT1A and serotonin 5-HT2 receptors with [3H]WB4101 and [3H]ketanserin, respectively. At the serotonin 5-HT1A receptor, the most and least potent neuroleptics w...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(87)90544-9
更新日期：1987-11-10 00:00:00
abstract：:Endogenous polyamines mediate acute metabolic effects and cardiac hypertrophy associated to beta-adrenoceptor stimulation. The aim of this study is to characterize the role of polyamines on beta-adrenoceptor system mediated responses. To this end, the functional interaction of polyamine modifying drugs on isoprotereno...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2008.07.069
更新日期：2008-11-19 00:00:00
abstract：:In previous studies, we have shown that opioid agonists ([D-Ala2, D-Leu5]enkephalin (DADLE), [D-Ser2, Leu5]enkephalin-Thr6 (DSLET), ethylketocyclazocine and etorphine) bind to opioid binding sites and decrease cell proliferation of human T47D breast cancer cells. Furthermore, we provided evidence about a cross-reactio...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(96)00339-1
更新日期：1996-08-29 00:00:00
abstract：:The cellular localisation and distribution of mRNAs encoding beta-adrenoceptor subtypes in human lung were studied by in situ hybridisation and Northern blot analysis. The 851-bp SmaI/PvuII fragment of human beta 1-adrenoceptor cDNA, the 439-bp SmaI fragment of human beta 2-adrenoceptor cDNA and the 975-bp SmaI fragme...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(96)00104-5
更新日期：1996-04-29 00:00:00
abstract：:The endogenous release of adenosine 5'-triphosphate (ATP) from strips of guinea-pig gallbladder during transmural stimulation (TS) was measured with a firefly luciferine-luciferase reaction. TS (15V, 1 ms, 0.5-5 Hz, for 1 min) caused a rapid and marked increase of ATP release in a frequency-dependent manner. Both ATP ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(87)90133-6
更新日期：1987-01-28 00:00:00
abstract：:The responsiveness of the guinea-pig esophageal muscularis mucosae to arachidonic acid (AA) and its cyclooxygenase and lipoxygenase metabolites was examined in vitro. AA (0.1-30 microM) produced a concentration-dependent contraction of the muscularis mucosae (mean EC50 +/- S.E.M. = 5.1 +/- 1.0 microM). The contraction...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(85)90519-9
更新日期：1985-08-07 00:00:00
abstract：:Cordycepin, (3'-deoxyadenosine), a bioactive compound of Cordyceps militaris, has been shown to exhibit many pharmacological actions, such as anti-inflammatory, antioxidative and anticancer activities. Little is known about the neuroprotective action of cordycepin as well as its molecular mechanisms. In this study, co...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2011.04.052
更新日期：2011-08-16 00:00:00
abstract：:The effects of the unilateral application of d-amphetamine, benztropine, haloperidol and thioproperazine to one substantia nigra on the release of 3H-dopamine (3H-DA) in the two caudate nuclei were examined in halothane-anesthetized cats. For this purpose animals were implanted with push-pull cannulae and 3H-DA was es...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(79)90135-3
更新日期：1979-01-15 00:00:00
