Abstract：
:The influence of native low-density lipoprotein (LDL) on the inhibition of endothelium-dependent relaxation previously induced by oxidized LDL was investigated with intact rabbit aortic rings. We also tried to assess oxysterol involvement in the native lipoprotein effects. Lipoprotein fractions (1 mg protein/ml) were tested for their ability to inhibit the vasorelaxation induced by acetylcholine in aorta rings previously precontracted by noradrenaline vs. that in control strips in Krebs buffer. Co-incubation of oxidized and native LDL reinforced the oxidized LDL-induced inhibition, compared to the impairment evoked by oxidized LDL alone (E(max)=43.3+/-6.7% and 61. 4+/-5.4%, respectively; P<0.05). Finally, smaller amounts of 7-oxy-cholesterols were recovered in organ baths after co-incubation of native and oxidized LDL than after incubation of oxidized LDL alone. Conversely, more oxy-cholesterols were found in the strip vessels under the same conditions (% of oxysterol incorporation: 0. 05158 vs. 0.10199, r=0.703). Together these results suggest that the strengthening of oxidized LDL-induced inhibition by native LDL is dependent on an oxysterol effect on arterial wall cells. Mechanisms involved in this phenomenon remain to be investigated.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Perségol L,Sementa V,Athias A,Lecerf J,Lallemant C,Gambert Pdoi
10.1016/s0014-2999(00)00696-8keywords:
subject
Has Abstractpub_date
2000-10-20 00:00:00pages
429-37issue
3eissn
0014-2999issn
1879-0712pii
S0014299900006968journal_volume
406pub_type
杂志文章abstract：:The activity of angiotensin-converting enzyme in rat choroid plexus was higher than that of any other organ, being 6--7 times higher than that in lung and more than 50 times higher than in any other region of brain. Rabbit choroid plexus also had high activity of enzyme while that of human choroid plexus was relativel...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(78)90035-3
更新日期：1978-11-01 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：: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 inhibitory effects of adenosine, ATP, 5'-adenylyl methylene diphosphonate (beta, gamma-meATP) and adenosine 5'-alpha, beta-methylene triphosphonate (alpha, beta-meATP) were compared on the cholinergic twitch responses to transmural stimulation of the guinea-pig ileum. Adenosine, ATP and beta, gamma-meATP reduced t...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(82)90527-1
更新日期：1982-01-08 00:00:00
abstract：:The effects of N-(aminoiminomethyl)-1, 4-dimethyl-1H-indole-2-carboxamide methanesulfonic acid (SM-20550), a novel potent Na(+)/H(+) exchanger, and nicorandil, a K(+) channel opener with nitrate-like activity, were studied in a myocardial ischemia and reperfusion injury model. Anesthetized rabbits underwent occlusion ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(00)00610-5
更新日期：2000-09-15 00:00:00
abstract：:(-)-Epigallocatechin-3-gallate (EGCG), a main flavanol of green tea, potently suppressed the urokinase-type plasminogen activator (uPA) expression in human fibrosarcoma HT 1080 cells. EGCG induced not only the suppression of the uPA promoter activity but also the destabilization of uPA mRNA. EGCG inhibited the phospho...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2003.12.031
更新日期：2004-03-08 00:00:00
abstract：:(-)Piquindone is a new antipsychotic pyrroloisoquinoline derivative that binds to dopamine D2 receptors. We used in vitro quantitative autoradiography to determine the distribution of [3H](-)piquindone binding sites in rat forebrain. [3H](-)Piquindone binding to brain slices was sodium dependent, saturable and of high...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(86)90259-1
更新日期：1986-03-04 00:00:00
abstract：:We have demonstrated that the antagonism of 5-HT2 receptors produces an enhancement of serotonergic sympathoinhibitory effect by 5-HT1D and 5-HT7 activation. The aim of this work was to determine mechanisms involved in the 5-hydroxytriptaminergic inhibitory action on the pressor responses elicited by sympathostimulati...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2014.02.043
更新日期：2014-05-15 00:00:00
abstract：:Terfenadine and astemizole rarely cause cardiac arrhythmias by suppressing the cardiac rapid delayed rectifier K+ channel encoded by the human ether-a-go-go-related gene (HERG). Epinastine, however, has not been reported to have the adverse effect. We have therefore compared the effects of epinastine, terfenadine and ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(99)00375-1
更新日期：1999-06-25 00:00:00
abstract：:The nociceptin/orphanin FQ (N/OFQ) peptide (NOP) receptor is a novel member of the opioid receptor family with little affinity for traditional opioids. This receptor and its endogenous ligand, N/OFQ, are widely distributed in the brain and are implicated in many physiological functions including pain regulation. [(pF)...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2007.10.006
更新日期：2008-01-28 00:00:00
abstract：:Annexin A1 (ANXA1)-formyl peptide receptor (Fpr) system is potent effective mediators in the control of the inflammatory response. In this study, we evaluate the potential involvement of the Fpr family in the protective effect of the mimetic peptide of ANXA1 (ANXA12-26) using an experimental allergic conjunctivitis (A...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2018.11.008
更新日期：2019-01-05 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：:The role of the alpha 1-adrenoceptor subtypes, and their possible change with maturation, in alpha 1-adrenoceptor-induced pressor responses in the rat has not been established. Thus, the effects of the alpha 1D-, alpha 1A/1D- and alpha 1B/1D-adrenoceptor antagonists, BMY 7378 (8-(2-(4-(2-methoxyphenyl)-1-piperazinyl)e...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(97)00092-7
更新日期：1997-03-19 00:00:00
abstract：:The immunosuppressant drug cyclosporine causes nephrotoxicity mainly via alterations of renovascular reactivity. This study investigated whether this effect of cyclosporine is modulated by the male gonadal hormone testosterone. The endothelium-dependent and -independent relaxations evoked by acetylcholine and sodium n...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(03)01720-5
更新日期：2003-05-16 00:00:00
abstract：:Selective L-type voltage-operated calcium channel (VOCC) antagonists nicardipine, diltiazem and verapamil all produced pronounced falls in mean arterial blood pressure (MAP) in the anaesthetized artificially ventilated guinea-pig. This fall in MAP was associated with a significant reduction of the pressor response ind...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(92)90163-x
更新日期：1992-07-21 00:00:00
abstract：:Three membrane preparations of rat cortex were used to examine the effects of GABA, bicuculline and bicucine on specific 3H-diazepam binding. In the crude synaptosomal fraction, GABA had no effect on either the maximal binding capacity (Bmax) or dissociation constant (KD) of 3H-diazepam binding. Bicuculline and bicuci...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(79)90264-4
更新日期：1979-07-01 00:00:00
abstract：:Long-term therapy with L-3,4-dihydroxyphenylalanine (L-DOPA) in parkinsonian patients is known to lead to dyskinesia within a few years, and repeated administration of L-DOPA is also likely to alter the expression of kappa opioid receptors in the basal ganglia, especially the striatum and substantia nigra pars reticul...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2009.08.013
更新日期：2009-10-12 00:00:00
abstract：:Free radicals may cause part of the irreversible injury which occurs during myocardial infarction and reperfusion. In the present study MDL 73404, an alpha-tocopherol analogue which is a free radical scavenger has been evaluated for its effects on infarct size in an anaesthetised rat model of coronary artery ligation ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(92)90655-n
更新日期：1992-01-07 00:00:00
abstract：:SK channels are small conductance, Ca(2+)-activated K(+) channels that underlie neuronal slow afterhyperpolarization and mediate spike frequency adaptation. Using the patch clamp technique, we tested the effects of eight clinically relevant psychoactive compounds structurally related to the tricyclic antidepressants, ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(00)00401-5
更新日期：2000-07-28 00:00:00
abstract：:Mitomycin C (MMC) is known to reduce epidural fibrosis, but the underlying mechanisms have not yet been elucidated. Aberrant miR-200b expressions have been reported in multiple types of fibrotic tissues from many diseases. The aim of this study was to clarify the mechanism by which MMC induces fibroblasts apoptosis an...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2015.08.002
更新日期：2015-10-15 00:00:00
abstract：:The cyclic AMP efflux from rat neostriatal slices induced by simultaneous activation of D-1 (stimulatory) and D-2 (inhibitory) dopamine receptors with 30 microM dopamine was inhibited by morphine (0.3-3 microM), [D-Ala2, D-Leu5]enkephalin (DADLE, 0.03-0.3 microM) but not by [D-Pen2, D-Pen5]enkephalin (DPDPE, 0.03-0.3 ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(85)90150-5
更新日期：1985-12-03 00:00:00
abstract：:alpha 2-adrenoceptor-mediated contractions of the rabbit saphenous vein were previously found to be inhibited by wortmannin, a protein kinase inhibitor which blocks receptor-dependent phospholipase D activation. Since other studies have indicated that receptor-dependent phospholipase D activation required activity of ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(95)00053-n
更新日期：1995-04-13 00:00:00
abstract：:Hydroxytyrosol (HT), a polyphenol widely contained as an ester in olive fruits and olive leaves, exhibits a broad spectrum of effectiveness. The present study was designed to investigate the effect of HT alone as well as in the combination with cisplatin on the House Ear Institute-Organ of Corti 1 cells (HEI-OC1) and ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2020.173338
更新日期：2020-11-15 00:00:00
abstract：:The new dihydropyridine calcium channel antagonist S 11568 and its optical isomers, S 12967 and S 12968 (3 x 10(-6) to 10(-4) M), caused, unlike nifedipine (10(-4) M), equipotent and rapid endothelium-dependent relaxations and increased the content of cyclic GMP in rings of canine femoral arteries. These effects were ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(91)90362-t
更新日期：1991-05-02 00:00:00
abstract：:In superfusion experiments with a crude synaptosomal fraction from the nucleus accumbens of rats, lysergic acid diethylamide, mescaline and N,N-dimethyltryptamine (representing different chemical classes of psychotomimetics) produced a concentration-related inhibition of K+-evoked [3H]dopamine release whereas spontane...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(83)90140-1
更新日期：1983-09-30 00:00:00
abstract：:Serotonin(1A) (5-HT(1A)) receptors are involved in anxiety. This study focuses on the role of genetic factors on the anxiety-related effects of 5-HT(1A) receptor stimulation using both a within subject design. The effects of 5-HT(1A) receptor activation were studied in high- and low-anxiety mice (129S6/SvEvTac (S6) an...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2004.04.037
更新日期：2004-06-21 00:00:00
abstract：:This study was designed to investigate the effect and mechanism of allicin on hyperhomocysteinemia-induced experimental vascular endothelial dysfunction in rats. Fifty male Wistar rats were randomly divided into five groups: the normal control rats (NC), the high-methionine-diet rats (Met), the high-methionine-diet ra...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2013.05.038
更新日期：2013-08-15 00:00:00
abstract：:Ovarian cancer is the leading cause of death among gynecologic cancer patients. Although platinum-based chemotherapy as a frontline treatment for ovarian cancer has been widely used in clinical settings, its clinical efficacy is not satisfactory due to the resistance of ovarian cancer cells to apoptosis. Therefore, it...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2020.173526
更新日期：2020-11-05 00:00:00
abstract：:The involvement of peptidoleukotrienes (LTs) in mediating the increase in microvascular permeability associated with experimental cutaneous immediate hypersensitivity was studied by examining the effect of SK&F 104353, a potent and selective LT-antagonist, on the response evoked by graded, intradermal injections of an...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(89)90473-1
更新日期：1989-05-19 00:00:00
abstract：:In an in vitro model for mitogenic activity in cloned Chinese hamster ovary (CHO) cells expressing rat dopamine D2 or D3 receptors, the EC50D2/EC50D3 ratios for the agonists, apomorphine, (+)-3-hydroxy-N-n-propyl-phenylpiperidine ((+)-3-PPP), quinpirole, R-(+)-7-hydroxy-2-(di-n-propylamino)tetralin (R-(+)-7-OH-DPAT) a...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(94)90718-8
更新日期：1994-10-03 00:00:00
