Abstract：
:The effects of ketamine and barbiturates (pentobarbital, thiopental, methohexital) were studied in an isolated rabbit Langendorff preparation. All agents tested depressed contractility. Ketamine, as well as the lipophilic barbiturates (thiopental, methohexital), caused a relatively greater depression at higher pacing rates such that the force-frequency relation was reversed. Pentobarbital did not reverse Bowditch. The effects of barbiturates on Bowditch correlated directly with lipid solubility, suggesting that their rate-related effects are due to perturbation of the membrane lipid bilayer. Disruption of hydrogen bands between polar membrane components may also be involved. The time course of the effect of thipental at high pacing rates was slower, both in onset and recovery, than at low rates. At a pacing rate of 1 Hz, maximal depression of contraction developed within 5 min. However, at 2.5 Hz, contractility continued to decline for up to 30 min. After 5 min of perfusion with thiopental, Bowditch was still positive, but by 30 min it was reversed. These temporal differences in thipental effects suggest that different mechanisms may dominate in the support of contractility at different ranges of heart rate.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Davies AE,McCans JLdoi
10.1016/0014-2999(79)90025-6subject
Has Abstractpub_date
1979-10-26 00:00:00pages
65-73issue
1-2eissn
0014-2999issn
1879-0712pii
0014-2999(79)90025-6journal_volume
59pub_type
杂志文章abstract：:Tibolone is a synthetic steroid that has been extensively prescribed to treat climacteric symptoms and to prevent postmenopausal osteoporosis. Because menopause is a condition associated with increased incidence of metabolic disturbances and hepatic steatosis, the aim of this work was to evaluate the actions of tibolo...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2011.06.043
更新日期：2011-10-01 00:00:00
abstract：:The effect of high helium pressure on inhibitory synaptic transmission was studied in rat hippocampal slices with extracellular recordings. Both feed-forward and recurrent GABAergic inhibition were tested in the CA1 region with paired-pulse stimulation paradigms. The efficiency of both types of inhibition decreased un...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(88)90606-1
更新日期：1988-08-24 00:00:00
abstract：:Competition by the potent selective H1-receptor antagonist temelastine (SK & F 93944) with [3H]mepyramine binding to mouse cortex H1-receptors has been measured in vitro and vivo. The data were compared with that obtained using the classical H1-receptor antagonists mepyramine and promethazine and indicated that temela...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(87)90206-8
更新日期：1987-01-06 00:00:00
abstract：:The present study was undertaken to evaluate the effects of an adenylate cyclase activator N,N-dimethyl-beta-alanine[3R-(3alpha, 4alphabeta, 5beta, 6beta, 6aalpha, 10alpha, 10abeta, 10balpha)]-5(acetyloxy)-3-ethenyldodecahydro-10, 10b-dihydroxy-3, 4a, 7, 7, 10a-pentamethyl-1-oxo-1H-naphtho [2,1-b] pyran-6-yl ester hyd...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(99)00220-4
更新日期：1999-05-21 00:00:00
abstract：:We report that cloricromene (5-30 microM) inhibited thrombin-induced platelet aggregation and synergized with other antiplatelet compounds. The antiaggregatory effect of subthreshold concentrations of the prostaglandin (PG)I2 analogue, iloprost (0.2 nM), or of sodium nitroprusside (1 micron), acting through a nitric o...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(92)90853-v
更新日期：1992-11-10 00:00:00
abstract：:Certain neuropeptides, including vasoactive intestinal peptide, inhibit peptidoleukotriene release from platelet activating factor-stimulated rat lung. We have now shown that vasoactive intestinal peptide will also inhibit peptidoleukotriene release from platelet activating factor-stimulated or ovalbumin-challenged gu...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(89)90610-9
更新日期：1989-03-14 00:00:00
abstract：:Fenfluramine + phentermine was a widely used combination for weight loss. Fenfluramine and phentermine are believed to act via serotonin and catecholamines, respectively. To what extent these drugs interact has not been well-established. We compared the anorectic efficacy of a range of doses of the combination (using ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(99)00235-6
更新日期：1999-06-04 00:00:00
abstract：:Honokiol and magnolol, two major phenolic constituents of Magnolia sp., have been known to exhibit antibacterial activities. However, until now, their antibacterial activity against Propionibacterium sp. has not been reported. To this end, the antibacterial activities of honokiol and magnolol were detected using the d...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2004.05.047
更新日期：2004-08-02 00:00:00
abstract：:Metabotropic glutamate mGlu(1) receptors play a modulatory role in the nervous system. They enhance cell excitability, modulate synaptic neurotransmission and are involved in synaptic plasticity. During the last 10 years, several selective metabotropic glutamate mGlu(1) receptor competitive antagonists and potentiator...
journal_title：European journal of pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.ejphar.2009.12.043
更新日期：2010-08-10 00:00:00
abstract：:beta-Funaltrexamine (beta-FNA) bound to mouse brain membranes in a reversible and an irreversible (not removed by washing of the membrane) manner, and a portion of each type of binding was opioid-specific. Addition of 100 mM NaCl to the incubating medium enhanced the binding of beta-FNA to membranes. Using membranes p...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(85)90257-2
更新日期：1985-01-08 00:00:00
abstract：:In many vascular smooth muscle cells, physiological and pharmacological agonists initiate oscillatory fluctuations in intracellular Ca(2+) to initiate and maintain vasoconstriction. These oscillations are supported by the underlying cellular ultrastructure, particularly the close apposition between the plasma membrane...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2009.11.055
更新日期：2010-03-10 00:00:00
abstract：:Studies were designed to examine the influence of endothelin type A receptor (ETA) blockade on the hypertensive and renal response to 4 day treatment with the nitric oxide (NO) synthase inhibitor, L-nitroarginine methyl ester (L-NAME), and cyclosporine. In the first series of experiments, male Sprague-Dawley rats main...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(98)00043-0
更新日期：1998-04-03 00:00:00
abstract：:Intracellular accumulation of Mn2+ augmented the contractions induced by norepinephrine and acetylcholine in the guinea pig isolated vas deferens. Contractions repeatedly induced by norepinephrine, acetylcholine, or a high concentration of K+ decreased depending on the incubation time in Ca(2+)-free medium. The rate o...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(95)00664-8
更新日期：1996-01-11 00:00:00
abstract：:The present study was designed to investigate the antinociception of spirocyclopiperazinium salt compound LXM-10-M (2,4-dimethyl-9-β-m-hydroxyphenylethyl-3-oxo-6, 9-diazaspiro [5.5] undecane chloride) in thermal and chemical pain models, and further to explore the molecular target and potential signal pathway. We asse...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2015.11.056
更新日期：2016-01-05 00:00:00
abstract：:Indomethacin and ibuprofen inhibited adrenaline- and calcium ionophore A23187-stimulated 45Ca2+ uptake by isolated human platelets in a concentration-dependent manner. Mediation of these effects by thromboxane A2 (TXA2) inhibition was discounted since under the same experimental conditions, adrenaline did not stimulat...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(90)90351-6
更新日期：1990-10-02 00:00:00
abstract：:The quantitative [14C]iodoantipyrine autoradiographic method was applied to study the effects of acute administration of caffeine and L-phenylisopropyladenosine (LPIA) separately or in combination on local cerebral blood flow in the rat. After the injection of caffeine, cerebral blood flow rates were decreased in 13 o...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(90)90165-3
更新日期：1990-04-25 00:00:00
abstract：:The effect of cytokines on the induction of contractile endothelin ET(B) receptors during organ culture was examined. Ring segments of rat superior mesenteric artery were used fresh or incubated for 24 h in Dulbecco's modified Eagle's medium alone, or with either interleukin-1beta, tumor necrosis factor-alpha (TNF-alp...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(99)00381-7
更新日期：1999-07-09 00:00:00
abstract：:Using 3H-ligands and radioactive microspheres we studied the binding characteristics and the effects on the distribution of carotid arterial blood flow of n-(3-acetylaminophenyl)piperazine hydrochloride (BEA 1654). The compound had a Ki value of 32 nM (5-HT: 8 nM) on 5-HT1 but no or very weak affinity for 5-HT2, alpha...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(85)90259-6
更新日期：1985-01-08 00:00:00
abstract：:Human adipose tissue-derived stromal cells (hADSCs) demonstrate promising potential in various clinical applications, including the transplantation to regenerate injured or degenerative tissues. The migration of engrafted hADSCs to the correct site of injure is essential for the curative effect of stem cell therapy. W...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2008.09.030
更新日期：2008-12-03 00:00:00
abstract：:The aim of this study was to investigate the effects of peritonitis on spontaneous contractions of ileum and jejunum smooth muscles isolated from rats. Peritonitis was induced by cecal ligation and puncture in 8 rats. Another group of 8 rats underwent a sham operation and acted as controls. Twenty-four hours after the...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2007.10.064
更新日期：2008-02-02 00:00:00
abstract：:Voltage-gated potassium (Kv) channels are the largest superfamily of potassium (K) channels. A variety of Kv channels are expressed in the vascular smooth muscle cells (SMC). Studies have shown that gestational diabetes mellitus (GDM) and pregnancy-induced hypertension (PIH) cause various changes in the human umbilica...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2020.173281
更新日期：2020-09-05 00:00:00
abstract：:The action of (+)-S-12967 and (-)-S-12968, two isomers of a new 1,4-dihydropyridine molecule (2-(-7-amino-2,5-dioxaheptyl)-3-ethoxycarbonyl-4-(2,3-dichlorop hen yl)-5-methoxycarbonyl-6-methyl 1,4-dihydropyridine), was studied on responses of rat isolated coronary resistance arteries (i.d. about 230 microns) to K+, Ca...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(93)90501-8
更新日期：1993-07-06 00:00:00
abstract：:The effect of papaverine on the positive inotropic response to isopreqaline and to calcium was studied on the rabbit isolated papillary muscle; theophylline and the calcium antagonistic D600 were used for comparison. The dose-response curve for isoprenaline was shifted to the left by papaverine (3 times 10- minus 6 to...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(75)90102-8
更新日期：1975-02-01 00:00:00
abstract：:The thromboxane A2/prostaglandin endoperoxide (TXA2/PGH2) receptor antagonist activity of CV-4151, a potent TXA2 synthetase inhibitor, was examined. CV-4151 inhibited guinea pig and human platelet aggregation induced by U-44069 with IC50 values of 1.2 +/- 0.3 X 10(-5) and 1.9 +/- 0.4 X 10(-5) M, respectively, and inhi...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(88)90169-0
更新日期：1988-03-15 00:00:00
abstract：:The effects of endothelin-1 on normal and everted rabbit aorta rings and on cultured rat aortic smooth muscle cells were studied. Endothelin-1 (40 nM) contracted both normal and everted rings, and was still able to induce a prolonged contraction in Ca2(+)-free medium. Treatment of cultured cells with 100 nM endothelin...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(90)90412-y
更新日期：1990-04-10 00:00:00
abstract：:Rats trained to discriminate 1.0 mg/kg of 1-(2,5-dimethoxy-4-methylphenyl)-2-aminopropane (DOM) from saline in a two-lever operant choice task were administered doses of mescaline, LSD, 5-methoxy-N,N-dimethyltryptamine (5-OMe DMT), quipazine, TFMPP and RU-24969. The DOM-stimulus generalized to the three hallucinogenic...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(83)90464-8
更新日期：1983-07-22 00:00:00
abstract：:We examined the effects of (+/-)-(E)-4-ethyl-2-[(E)-hydroxyimino]-5-nitro-3-hexenamide (FK409), a nitric oxide (NO) donor, on renal actions and norepinephrine overflow induced by renal nerve stimulation in anesthetized dogs, with or without N(G)-nitro-L-arginine (NOARG), a NO synthase inhibitor. Renal nerve stimulatio...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(97)01424-6
更新日期：1998-01-12 00:00:00
abstract：:Toll-like receptors (TLRs) play an important role in the recognition of microbial pathogens and induce innate immune responses. The recognition of microbial components by TLRs triggers the activation of myeloid differential factor 88 (MyD88)- and toll-interleukin-1 receptor domain-containing adapter inducing interfero...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2013.09.045
更新日期：2013-12-05 00:00:00
abstract：:The K562 cell line has been proposed as a useful experimental system to identify anti-tumor compounds acting by inducing terminal erythroid differentiation. K562 cells exhibit a low proportion of hemoglobin-synthesizing cells under standard cell growth conditions, but are able to undergo terminal erythroid differentia...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2011.09.024
更新日期：2011-12-15 00:00:00
abstract：:The structure-activity relationships of 35 novel derivatives of 2-(carboxypropyl)-3-amino-4-methyl-6-phenyl pyridazine (SR 95103) were examined as gamma-aminobutyric acid (GABA) antagonists in the flap preparation of the parasitic nematode, Ascaris suum, using a two-microelectrode current-clamp technique. All but one ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(94)00778-6
更新日期：1995-03-24 00:00:00
