Abstract：
:Transgenic rabbits expressing loss-of-function pore mutants of the human gene KCNQ1 (K(v)LQT1-Y315S) have a Long QT-Syndrome 1 (LQT1) phenotype. We evaluated for the first time the effect of nicorandil, an opener of ATP-sensitive potassium channels, and of isoproterenol on cardiac action potential duration and heart rate dependent dispersion of repolarisation in transgenic LQT1 rabbits. In vivo LQT1 and littermate control were subjected to transvenous electrophysiological studies; in vitro monophasic action potentials were recorded from explanted Langendorff-perfused hearts. In vivo ventricular effective refractory periods (VERP) at the right ventricular base were significantly prolonged in LQT1 as compared to littermate control, resulting in a more pronounced VERP dispersion in LQT1. This difference in VERP dispersion between LQT1 and littermate control disappeared after infusion of nicorandil. In vitro, mean action potential durations (APD(75) and APD(90)) of LQT1 were significantly prolonged compared to littermate control at baseline. Nicorandil decreased APD(75) and APD(90) in LQT1 and littermate control at all stimulated heart rates. After adding nicorandil, the APD(90) at all hearts rates and the APD(75) at high heart rates were no longer different. Dispersion of repolarisation (∆APD(75) and ∆APD(90)) was heart rate dependently decreased after nicorandil at all tested stimulation cycle lengths only in LQT1. We demonstrated phenotypic differences of LQT1 and littermate control in vivo and in vitro. Nicorandil 20μmol/l improved repolarisation abnormalities and heterogeneities in transgenic LQT1 rabbits.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Biermann J,Wu K,Odening KE,Asbach S,Koren G,Peng X,Zehender M,Bode C,Brunner Mdoi
10.1016/j.ejphar.2010.10.016subject
Has Abstractpub_date
2011-01-10 00:00:00pages
309-16issue
1eissn
0014-2999issn
1879-0712pii
S0014-2999(10)01019-8journal_volume
650pub_type
杂志文章abstract：:Barbiturates derived by minor structural changes to the butenyl sidechain of the convulsant 5-ethyl-5-(3'-methyl-but-2'-enyl)-barbituric acid are almost devoid of convulsant activity, but all have anaesthetic and anticonvulsant effects. Anticonvulsant activity is also observed in the convulsant barbiturate. Increased ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(79)90382-0
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abstract：:Acute kidney injury (AKI) is defined as a rapid loss of kidney function characterised by inflammation and cell death, ultimately leading to further functional and structural renal alterations. Based on experimental and epidemiological pieces of evidence, AKI may progress to chronic kidney disease (CKD) even after a re...
journal_title：European journal of pharmacology
pub_type： 杂志文章,评审
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abstract：:We investigated the involvement of dopamine D1 and D2 receptor subtypes in the effects of GBR 12909, a selective dopamine uptake inhibitor, on latent learning in the performance of a water-finding task and on locomotor activity in mice. GBR 12909 (10 and 20 mg/kg) impaired latent learning, and this effect was countera...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(93)90949-i
更新日期：1993-04-06 00:00:00
abstract：:In anaesthetised guinea-pigs, bronchoconstriction induced by vagal nerve stimulation was potentiated by low doses of the antimuscarinic bronchodilator drug, ipratropium (0.01-1.0 microgram/kg); the maximum effect was obtained with 1.0 microgram/kg which doubled the bronchoconstriction. When the dose was increased abov...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(87)90251-2
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abstract：:Platycodi Radix is the root of Platycodon grandiflorum and it is widely used in the traditional Oriental medicine as an expectorant for pulmonary diseases and a remedy for respiratory disorders. Platycodin D is the major constituent of triterpene saponins in the root. This study investigates apoptosis by platycodin D ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2006.03.012
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abstract：:Visfatin is a novel adipokine involved in the process of atherosclerosis. We assessed the effect of rosuvastatin on plasma visfatin levels in patients with primary hyperlipidemia. Eighty hyperlipidemic patients without evidence of cardiovascular disease were randomized to receive either rosuvastatin 10 mg/day or thera...
journal_title：European journal of pharmacology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ejphar.2007.09.019
更新日期：2008-01-14 00:00:00
abstract：:The effect of colchicine on jejunal adenylate cyclase activity, prostaglandin E2 (PGE2) and cAMP contents, the enzyme and mediators involved in intestinal fluid secretion was tested in rats. Four h after the intraperitoneal injection of colchicine (0.5 mg/100 g body wt.) mucosal PGE2 content, adenylate cyclase activit...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(80)90503-8
更新日期：1980-10-17 00:00:00
abstract：:The role of prostaglandins in the secretion of inhibin and oestradiol-17 beta was examined in immature female rats treated with equine chorionic gonadotrophin. Administration of prostaglandin (PG) F2 alpha to animals whose serum and ovarian levels of inhibin and oestradiol-17 beta had been suppressed by indomethacin g...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(93)90129-6
更新日期：1993-02-16 00:00:00
abstract：:The effects of the enantiomers of clenbuterol were compared in four psychopharmacological tests in which beta-adrenergic agonists are known to be active. In mice (+/-)-clenbuterol 0.06 mg/kg decreased motor activity and antagonized the hypothermia induced by 16 mg/kg of apomorphine; at 0.5 mg/kg it increased head-twit...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(85)90481-9
更新日期：1985-10-29 00:00:00
abstract：:Several studies have recently suggested a principal role of adenosine in the pathogenesis of radiocontrast media-induced nephropathy. In the present experiments, we therefore investigated the renal protective effects of 8-(noradamantan-3-yl)-1,3-dipropylxanthine (KW-3902), a potent and selective adenosine A1 receptor ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(01)00764-6
更新日期：2001-02-23 00:00:00
abstract：:Trans-dehydrocrotonin has antiulcerogenic and antitumor activities. A complex of beta-cyclodextrin with dehydrocrotonin was developed to improve the delivery of dehydrocrotonin. Complex in solid state was evaluated using X-ray diffraction (XRD), differential scanning calorimetry (DSC), thermal gravimetric analysis (TG...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2005.01.016
更新日期：2005-03-07 00:00:00
abstract：:Increased O-Linked β-N-acetylglucosamine (O-GlcNAc) is observed in several pathologies, and unbalanced O-GlcNAcylation levels favor endothelial dysfunction. Whether augmented O-GlcNAc impacts the uterine artery (UA) function and how it affects the UA during pregnancy remains to be elucidated. We hypothesized that gluc...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2020.173133
更新日期：2020-08-05 00:00:00
abstract：:Receptor activation of G-proteins can be measured by agonist-stimulated [35S]GTP gamma S binding in the presence of excess guanosine diphosphate (GDP). To determine whether opioid and cannabinoid receptor-mediated G-protein activation correlate with their receptor densities, this study compared opioid- and cannabinoid...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(96)00211-7
更新日期：1996-06-20 00:00:00
abstract：:Choline displaced [3H]QNB binding from rat brain muscarinic receptors competitively, (Ki = 460 microM) but it was only 1/1000th as potent as ACh. Deanol was an extremely weak displacer of [3H]QNB binding while hemicholinium-3 was 50 times more potent than choline. Although brain levels of choline are well below its Ki...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(79)90012-8
更新日期：1979-09-15 00:00:00
abstract：:Previous studies have demonstrated that Fos-like immunoreactivity is increased in spinal dorsal horn neurons in several pain models, and have suggested that Fos-like immunoreactivity could be used as a marker of neurons activated by painful stimulation. In the present study, we evaluated nociceptive behaviors and spin...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2005.12.019
更新日期：2006-02-15 00:00:00
abstract：:The regulation of the 5-HT2 receptor-mediated head twitch response and of 5-HT2 receptor binding in the frontal cortex was studied in rats treated repeatedly with the 5-HT2 agonist 1-(2,5-dimethoxy-4-methylphenyl)-2-aminopropane (DOM) (2.5 mg/kg, s.c.). Four injections in 24 h produced a near maximal reduction in the ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(89)90409-3
更新日期：1989-04-12 00:00:00
abstract：:To investigate the abnormal function of T and B lymphocytes involved in collagen-induced arthritis in DBA/1 mice and the regulation role of TACI-Ig on T and B lymphocytes, collagen-induced arthritis models were established in DBA/1 mice. Mice were divided randomly into eight groups, including normal, collagen-induced ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2011.01.002
更新日期：2011-03-11 00:00:00
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journal_title：European journal of pharmacology
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doi：10.1016/j.ejphar.2020.173050
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(98)00380-x
更新日期：1998-06-26 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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abstract：:Present study was undertaken to evaluate the protective effect of 1,2,3,4,6-penta-O-galloyl-β-d-glucopyranose (PGG) against transient global ischemia/reperfusion (I/R)-induced brain injury in rats. Sixty minutes of global ischemia, followed by 24h of reperfusion caused significant alterations in cognition and memory (...
journal_title：European journal of pharmacology
pub_type： 杂志文章
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2009.02.022
更新日期：2009-04-01 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(87)90202-0
更新日期：1987-01-06 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2005.12.074
更新日期：2006-02-17 00:00:00
abstract：:The prefrontal cortex and the mediodorsal thalamic nucleus are reciprocally connected through excitatory amino acid pathways. Cortical excitatory responses resulting from activation of either the mediodorsal thalamic nucleus-prefrontal cortex pathway (short latency) or the recurrent collaterals of prefrontal cortex-me...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(95)00377-w
更新日期：1995-10-04 00:00:00
abstract：:The constitutive androstane receptor (CAR, NR1I3) has a central role in detoxification processes, regulating the expression of a set of genes involved in metabolism. The dual role of NR1I3 as both a xenosensor and as a regulator of endogenous energy metabolism has recently been accepted. Here, we investigated the mech...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2012.01.007
更新日期：2012-03-15 00:00:00
