Abstract:
:In Parkinson disease the degeneration of dopaminergic neurones is believed to lead to a disinhibition of the subthalamic nucleus thus increasing the firing rate of the glutamatergic excitatory projections to the substantia nigra. In consequence, excessive glutamatergic activity will cause excitotoxicity and oxidative stress. In the present study we investigated mechanisms of glutamate toxicity and the neuroprotective potential of the dopamine agonist rotigotine towards dopaminergic neurones in mouse mesencephalic primary culture. Glutamate toxicity was mediated by the N-methyl-d-aspartic acid (NMDA) receptor and accompanied by a strong calcium influx into dopaminergic neurones for which the L-type voltage-sensitive calcium channels play an important role. The rate of superoxide production in the culture was highly increased. Deleterious nitric oxide production did not participate in glutamate-mediated excitotoxicity. Pretreatment of cultures with rotigotine significantly increased the survival of dopaminergic neurones exposed to glutamate. Rotigotine exerted its protective effects via dopamine receptor stimulation (presumably via dopamine D3 receptor) and decreased significantly the production of superoxide radicals. When cultures were preincubated with Phosphoinositol 3-Kinase (PI3K) inhibitors the protective effect of rotigotine was abolished suggesting a decisive role of the PI3K/Akt pathway in rotigotine-mediated neuroprotection. Consistently, exposure to rotigotine induced the activation of Akt by phosphorylation followed by phosphorylation, and thus inactivation, of the pro-apoptotic factor glycogen synthase kinase-3-beta (GSK-3-β). Taken together, our work contributed to elucidating the mechanisms of glutamate toxicity in mesencephalic culture and unravelled the signalling pathways associated with rotigotine-induced neuroprotection against glutamate toxicity in primary dopaminergic cultures.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Oster S,Radad K,Scheller D,Hesse M,Balanzew W,Reichmann H,Gille Gdoi
10.1016/j.ejphar.2013.12.014subject
Has Abstractpub_date
2014-02-05 00:00:00pages
31-42eissn
0014-2999issn
1879-0712pii
S0014-2999(13)00941-2journal_volume
724pub_type
杂志文章abstract::The acute effects of propranolol, 1 mg/kg i.v., were studied in chloralosed, vagotomized cats. The vascularly isolated but innervated calf muscles were perfused from another animal. In one group of experiments, the carotid baroreceptors were exposed to ambient arterial pressure. Here, propranolol caused a fall in hear...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(78)90361-8
更新日期:1978-08-01 00:00:00
abstract::This study was designed to investigate the effects of serotonin on changes in intracellular Ca(2+) concentration ([Ca(2+)](i)) in cultured rat heart endothelial cells. Serotonin stimulated a biphasic change in cytosolic Ca(2+) of rat heart endothelial cells: an initial transient increase, which primarily reflects the ...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/s0014-2999(99)00672-x
更新日期:1999-11-12 00:00:00
abstract::The pathophysiology of chronic neurodegenerative diseases, as Alzheimer's diseases, has remained inaccessible till recently. But this situation is changing quickly. In the past decades, genes causing familiar forms of the disease have been identified and provided the genetic framework for the emerging amyloid hypothes...
journal_title:European journal of pharmacology
pub_type: 杂志文章,评审
doi:10.1016/j.ejphar.2009.10.020
更新日期:2010-01-10 00:00:00
abstract::Dendritic cells play an important role in the initiation and regulation of immune response. Dendritic cells have a key influence in the differentiation of naïve T cells into Th1, Th2 or Th17 effector cells. Cryptomerione is terpene isolated from the heartwood of Cryptomeria japonica. In this study, we investigated the...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2009.11.031
更新日期:2010-02-25 00:00:00
abstract::Although the involvement of cannabinoids and the endogenous cannabinoid system in the regulation of the hypothalamo-pituitary-adrenal axis in rodents is well documented, the precise role played by the cannabinoid type one (CB(1)) receptor in this effect has not been fully elucidated. Consequently, we investigated the ...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2006.08.083
更新日期:2006-12-03 00:00:00
abstract::The effect of three selective bradykinin B(2) receptor antagonists, MEN11270 (H-DArg-Arg-Pro-Hyp-Gly-Thi-c(Dab-DTic-Oic-Arg)c(7gamma-1 0alpha)), Icatibant (H-DArg-Arg-Pro-Hyp-Gly-Thi-Ser-DTic-Oic-Arg-OH), and FR173567 ((E)-3-(6-acetamido-3-pyridyl)-N-[N-[2, 4-dichloro-3-[(2-methyl-8-quinolinyl) oxymethyl] phenyl]-N-me...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/s0014-2999(99)00882-1
更新日期:2000-01-28 00:00:00
abstract::We have characterized a specific binding site for angiotensin IV on bovine aortic endothelial cell membranes. Pseudo-equilibrium studies at 37 degrees C for 2 h have shown that this binding site recognizes angiotensin IV with a high affinity (Kd = 0.71; average of two experiments that yielded values of 0.71 and 0.72 n...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0922-4106(95)90142-6
更新日期:1995-10-15 00:00:00
abstract::The histamine H3 agonist, (R)-alpha-methylhistamine (alpha-MeHA, 10(-10) to 10(-5) M), caused a concentration-dependent inhibition of the sympathetic contractile response to electrical field stimulation of guinea pig isolated atria, but alpha-MeHA did not alter the basal tension or the contraction induced by exogenous...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(91)90857-m
更新日期:1991-11-12 00:00:00
abstract::We report that certain substituted hexahydrobenzo[a]phenanthridines are novel high affinity ligands selective for the dopamine D3 receptor. These data demonstrate that substitutions on the heterocyclic nitrogen and the pendant phenyl ring of this nucleus cause a marked increase in both affinity and selectivity for dop...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(93)91012-c
更新日期:1993-08-03 00:00:00
abstract::alpha-Adrenoceptors have been classified into alpha(1)- and alpha(2)-adrenoceptors. Recently, the alpha(1)-adrenoceptors were divided into two subtypes: alpha(1L) with low affinity and alpha(1H) with high affinity for prazosin. Little is known concerning the role of each subtype of alpha(1)-adrenoceptor in asthma. We ...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/s0014-2999(02)02248-3
更新日期:2002-09-27 00:00:00
abstract::Large doses of dexamphetamine, methylamphetamine and MPTP failed to induce the formation of 6-hydroxydopamine (6-OHDA) in rat striatum. The potent dopamine (DA) releasing actions of these drugs and of the MPTP metabolite MPP+ were shown by intracerebral dialysis of DA in conscious rats but 6-OHDA was not detectable in...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(86)90011-7
更新日期:1986-12-02 00:00:00
abstract::Subplantar injection of 0.10 micrograms of serotonin in the rat resulted in a brief period (0-20 min) of increased pain sensitivity to an applied force (hyperalgesia) which preceded a longer period (40-120 min) of decreased pain sensitivity (hypoalgesia). The magnitude of each of these changes and the duration of the ...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(89)90257-4
更新日期:1989-05-30 00:00:00
abstract::FK-33,824 (Tyr-D-Ala-Gly-MePhe-Met(O)-ol) and metkephamid (Tyr-D-Ala-Gly-Phe-N(Me)Met-CONH2; LY 127623) are two parenterally active synthetic analogues of the endogenous morphinomimetic pentapeptide, [Met5]-enkephalin. Acute s.c. administration of each analogue raised the seizure threshold in a dose-related manner in ...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(81)90392-7
更新日期:1981-04-24 00:00:00
abstract::As there are significant amounts of functional endothelin receptors in the mammalian urinary tract, we examined the effect of experimental diabetes on the expression of endothelin receptors and their mRNAs in the rat bladder dome. The density of endothelin receptors in the rat bladder dome was higher (8 and 16 weeks f...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/s0014-2999(99)00753-0
更新日期:2000-01-17 00:00:00
abstract::To evaluate the possible role of 5-HT 1A and 5-HT 2A receptors in the anticonvulsant effect of swim stress, mice were pre-treated with agonists and antagonists of these receptors prior to exposure to stress and the intravenous infusion of picrotoxin. 8-OH-DPAT ((+/-)-8-hydroxy-2-(di-n-propylamino) tetralin) and WAY-10...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2005.10.021
更新日期:2005-12-19 00:00:00
abstract::(5R)-5-hydroxytriptolide (LLDT-8) exhibits strong immunosuppressive activities in vitro and in vivo. Here, we investigated the effects of LLDT-8 on concanavalin A-induced hepatitis. Liver damage was evaluated by serum alanine transaminase (ALT) level and liver histology. The effects of LLDT-8 were determined by measur...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2006.03.013
更新日期:2006-05-10 00:00:00
abstract::After chronic exposure to neurokinin A, a time-dependent and recoverable desensitization of inositol monophosphate accumulation occurred in B82 fibroblasts transfected with cDNAs encoding for the bovine stomach NK2 receptor. Desensitized cells also showed decreased Ca2+ mobilization. While NK2 receptor antagonists had...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0922-4106(93)90172-6
更新日期:1993-03-15 00:00:00
abstract::The role of leukotriene synthesis in the gastrointestinal damage induced by platelet-activating factor (PAF) was examined in the rat. The effects of a 20-min infusion of PAF (100 ng/kg per min) on leukotriene B4 (LTB4) and leukotriene C4 (LTC4) synthesis were examined in samples of the stomach, duodenum, jejunum, ileu...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(88)90690-5
更新日期:1988-06-22 00:00:00
abstract::Type 1 diabetes (T1D) is a multifactorial autoimmune disease that develops as a consequence of macrophage- and T cell-dependent pancreatic β-cell death. Multiple approaches for induction of anti-inflammatory/regulatory mechanisms that would attenuate T1D have been utilized, with little or no beneficial effects. To ach...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2019.172721
更新日期:2019-12-01 00:00:00
abstract::The effect of moguisteine, a novel peripherally acting non-narcotic antitussive drug, on allergic coughs was examined in guinea pigs. Male Hartley guinea pigs were actively sensitized to ovalbumin. The number of coughs elicited over 5 min following a 2-min exposure to ovalbumin was counted. Exposure of sensitized guin...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/s0014-2999(98)00176-9
更新日期:1998-04-24 00:00:00
abstract::Allergic asthma is a chronic disease characterized by early and late asthmatic reactions, airway hyperresponsiveness, airway inflammation and airway remodelling. Changes in l-arginine homeostasis may contribute to all these features of asthma by decreased nitric oxide (NO) production and increased formation of peroxyn...
journal_title:European journal of pharmacology
pub_type: 杂志文章,评审
doi:10.1016/j.ejphar.2008.02.096
更新日期:2008-05-13 00:00:00
abstract::Endothelial cells from rat brain microvessels, human aortic artery and human umbilical vein were examined, together with ex vivo rat brain capillaries and rat aortic ring sections, for the expression of opioid receptor-like OP-4 mRNA and protein. High levels of mRNA expression and an immunopositive reaction for the re...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2003.09.049
更新日期:2003-12-15 00:00:00
abstract::Translational research for neurodegenerative disease depends intimately upon animal models. Unfortunately, promising therapies developed using mouse models mostly fail in clinical trials, highlighting uncertainty about how well mouse models mimic human neurodegenerative disease at the molecular level. We compared the ...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2015.03.021
更新日期:2015-07-15 00:00:00
abstract::A single electroconvulsive shock produced analgesia (expressed as prolongation of hot-plate latency) in Wistar rats 45 min after the shock. The analgesic action was prevented by administration of nifedipine, 5 mg/kg i.p., 15 min before the electroconvulsive shock, while nifedipine injection after electroconvulsive sho...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(94)90363-8
更新日期:1994-03-11 00:00:00
abstract::We have shown previously in dogs with right heart failure that the reduction of myocardial beta-adrenoceptor density occurs only in the failing right ventricle, while cardiac inotropic responses to beta-adrenergic stimulation are reduced in both the right and left ventricles. The purpose of the present study was to de...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(96)00340-8
更新日期:1996-08-08 00:00:00
abstract::Pharmacological properties of oxime reactivators, not related to its ability to regenerate or reactivate nerve agent-inhibited acetylcholinesterase located at nerve synapses, have been reported to be important in protecting against poisoning by the nerve agent soman. Such non-reactivation effects have thus far been as...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2005.07.033
更新日期:2005-10-03 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::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::The cardiovascular protecting effect of the grape fruit trans-resveratrol has been explained among other factors, through augmentation of nitric oxide (NO) production in cardiovascular tissues. Another effect of low resveratrol concentration is the inhibition of single-vesicle quantal release of catecholamine from bov...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2012.03.040
更新日期:2012-06-15 00:00:00
abstract::Protective effect of quercetin and alpha-tocopherol on experimental reflux oesophagitis in rats was investigated. Rats received quercetin, (100 mg/kg), alpha-tocopherol (16 mg/kg), omeprazole (30 mg/kg) given at 1 h prior to surgery. Quercetin and alpha-tocopherol significantly inhibited the oesophagitis index to 1.33...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2008.04.062
更新日期:2008-07-28 00:00:00