Abstract:
:Microglial cells killed neurons damaged following incubation with sub-lethal concentrations of peptides derived from either the human prion protein (HuPrP82-146) or amyloid-beta1-42 (a peptide found in Alzheimer's disease). HuPrP82-146 or amyloid-beta1-42 induced phenotypic changes in neurons that caused them to bind a CD14-IgG chimera. In co-cultures microglial cells produced interleukin (IL)-6 in response to HuPrP82-146 or amyloid-beta1-42 damaged neurons. The binding of the CD14-IgG chimera to HuPrP82-146 or amyloid-beta1-42 damaged neurons was reduced by pre-treatment with cyclo-oxygenase (COX)-1 inhibitors and in co-cultures, COX-1 inhibitors significantly increased neuronal survival. Studies with individual prostaglandins demonstrated that the addition of prostaglandin D2, or prostaglandin E2, but not other prostaglandins (F2alpha, H2, I2 or 15-dJ2), mimicked the effects of amyloid-beta1-42 on neurons. Thus, prostaglandin D2 or E2 damaged neurons bound the CD14-IgG chimera, and in co-cultures prostaglandin D2 damaged neurons activated microglial cells. These effects were mediated via the DP prostanoid receptor; DP receptor agonists BW245C or SQ27986 induced neuronal damage, while the DP receptor antagonist BWA868C was neuroprotective in co-cultures. These results indicate that prostaglandin D2, produced following activation of COX-1 by sub-lethal concentrations of HuPrP82-146 or amyloid-beta1-42, causes phenotypic changes in neurons that activates microglial cells and leads to neuronal loss.
journal_name
Neuropharmacologyjournal_title
Neuropharmacologyauthors
Bate C,Kempster S,Williams Adoi
10.1016/j.neuropharm.2005.09.008subject
Has Abstractpub_date
2006-02-01 00:00:00pages
229-37issue
2eissn
0028-3908issn
1873-7064pii
S0028-3908(05)00351-5journal_volume
50pub_type
杂志文章abstract::We investigated the effects of salvinorin A on the basal and the 12 mM K(+)-evoked release of preloaded [(3)H]noradenaline ([(3)H]NA) and [(3)H]serotonin ([(3)H]5-HT) from mouse hippocampal nerve terminals (synaptosomes), as well as on the basal and 12mM K(+)-evoked release of preloaded [(3)H]dopamine ([(3)H]DA) from ...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2009.07.023
更新日期:2009-10-01 00:00:00
abstract::The GABA(B) receptor has been shown to consist of a heterodimer of two related 7-transmembrane receptors GABAB-R1 and GABA(B)-R2. These receptors share close homology to the Ca2+-sensing receptor and also to the metabotropic glutamate receptors, which have also been shown to respond to extracellular calcium. We show h...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/s0028-3908(99)00119-7
更新日期:1999-11-01 00:00:00
abstract::Long-term L-DOPA treatment for Parkinson's disease (PD) is limited by motor complications, particularly L-DOPA-induced dyskinesia (LID). A therapy with the ability to ameliorate LID without reducing anti-parkinsonian benefit would be of great value. We assessed the ability of TC-8831, an agonist at nicotinic acetylcho...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2013.06.005
更新日期:2013-10-01 00:00:00
abstract::The effect of trans-(+/-)-3,4-dichloro-N-methyl-N-[2-(1-pyrrolidinyl) cyclohexyl]-benzene-acetamide methane sulfonate (U-50,488H), a kappa-opiate agonist-induced tolerance and abstinence on 5-HT1A receptors was determined in regions of the brain and spinal cord of the rat. The administration of U-50,488H (25 mg/kg, i....
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/0028-3908(92)90052-q
更新日期:1992-12-01 00:00:00
abstract::The role of the adenosine A(2A) receptor in the hypnotic effects of ethanol was assessed in mice. The duration of the loss of righting reflex following acute ethanol administration was shorter for A(2A) receptor-deficient mice (A(2A)R KO) than for wild-type mice (A(2A)R WT), whereas the fall in body temperature was no...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/s0028-3908(03)00254-5
更新日期:2003-12-01 00:00:00
abstract::Methylphenidate (MPH, Ritalin©) is widely used in the treatment of Attention Deficit Hyperactivity Disorder and recently as a drug of abuse. Although the effect of MPH has been studied in brain regions such as striatum and prefrontal cortex (PFC), the hippocampus has received relatively little attention. It is known t...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2015.07.003
更新日期:2015-12-01 00:00:00
abstract::In slices of cerebral cortex from rat preloaded with [3H]GABA, muscimol produced a concentration-related inhibition of K(+)-evoked release of tritium with a pIC25 value of 7.80 +/- 0.39. Dimethylbarbituric acid (10 and 100 microM) and pentobarbitone (100 microM) significantly increased this value to 8.31 +/- 0.09, 9.9...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/0028-3908(93)90156-w
更新日期:1993-04-01 00:00:00
abstract::The responses of the guinea-pig ileum myenteric plexus-longitudinal muscle to the food, drug and cosmetic dye erythrosin B (FD & C Red No. 3) were examined in acetylcholine- and electrically-stimulated preparations. Erythrosin B (10(-6)-10(-4)) reduced the amplitude of the mechanical responses produced by both stimuli...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/0028-3908(83)90001-1
更新日期:1983-02-01 00:00:00
abstract::Neurogenesis requires the balance between the proliferation of newly formed progenitor cells and subsequent death of surplus cells. RT-PCR and immunocytochemistry demonstrated the presence of P2X7 receptor mRNA and immunoreactivity in cultured neural progenitor cells (NPCs) prepared from the adult mouse subventricular...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2013.05.017
更新日期:2013-10-01 00:00:00
abstract::Radioligand binding assays were used to demonstrate the presence of alpha 1, alpha 2 and beta receptors in rat spinal cord. Specific and saturable binding was exhibited for [3H]-WB 4101 (alpha 1), [3H]-aminoclonidine (alpha 2) and [3H]-dihydroalprenolol (beta). Binding was of high affinity and the total number of bind...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/0028-3908(82)90162-9
更新日期:1982-02-01 00:00:00
abstract::Although there is evidence from in vitro studies to suggest that NO synthesis may be involved in the induction of hippocampal LTP, other in vitro studies and experiments conducted in vivo have provided conflicting results. In agreement with previous work conducted in this laboratory using an i.p. route of administrati...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/0028-3908(94)90040-x
更新日期:1994-11-01 00:00:00
abstract::Remifentanil is a powerful mu-opioid (MOP) receptor agonist used in anaesthesia with a very short half-life. However, per-operative perfusion of remifentanil was shown to increase morphine consumption during post-operative period to relieve pain. In the present study, we aimed to describe the cellular mechanisms respo...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2013.06.010
更新日期:2013-10-01 00:00:00
abstract::Though amyloid precursor protein (APP) can potentially be cleaved to generate the pathological amyloid β peptide (Aβ), APP itself plays an important role in regulating neuronal activity. APP deficiency causes functional impairment in cholinergic synaptic transmission and cognitive performance. However, the mechanisms ...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2016.08.021
更新日期:2016-11-01 00:00:00
abstract::Changes in the levels of mRNA for the NR1 subunit of the glutamate NMDA receptor and in NMDA-sensitive glutamate binding were investigated in consecutive sections of the prefrontal cortex and striatum of control and Parkinson's disease (PD) post-mortem brain using in-situ hybridisation and receptor autoradiography. Bo...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/s0028-3908(98)00219-6
更新日期:1999-05-01 00:00:00
abstract::Diabetic neuropathic pain remains an unmet clinical problem and is poorly relieved by conventional analgesics. N-methyl-D-aspartate (NMDA) receptors play an important role in central sensitization in neuropathic pain. Although NMDA antagonists are highly effective in reducing neuropathic pain, these agents cause sever...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2009.04.010
更新日期:2009-08-01 00:00:00
abstract::The naturally occurring beta-carbolines exert psychotropic actions in humans and have numerous behavioral effects in animals. The known in vitro activities of these substances do not provide a satisfactory explanation for their in vivo effects. The present study was undertaken to explore the possibility of a specific ...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/s0028-3908(97)00167-6
更新日期:1997-11-01 00:00:00
abstract::Absence epilepsy is generated by the cortico-thalamo-cortical network, which undergoes a finely tuned regulation by metabotropic glutamate (mGlu) receptors. We have shown previously that potentiation of mGlu1 receptors reduces spontaneous occurring spike and wave discharges (SWDs) in the WAG/Rij rat model of absence e...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2012.05.044
更新日期:2013-03-01 00:00:00
abstract::Oxytocin (100 ng) injected unilaterally into the ventral subiculum of the hippocampus induces penile erection episodes, which started 30 min after treatment and were abolished by the prior injection of d(CH(2))(5)Tyr(Me)(2)-Orn(8)-vasotocin (2 μg), an oxytocin receptor antagonist, into the ventral subiculum. Oxytocin-...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2011.03.026
更新日期:2011-07-01 00:00:00
abstract::The involvement of metabotropic glutamate receptor group II (mGluRII) in the induction of long-term depression (LTD) was investigated in the medial perforant path of the rat dentate gyrus, a region with a very high density of mGluRII. Perfusion of either of two potent mGluRII agonists, (2S,1R,2R,3R)-2-(2S, 1'R, 2'R, 3...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/s0028-3908(98)00168-3
更新日期:1999-01-01 00:00:00
abstract::This study examined the role of cannabinoid CB1 receptors (CB1r) in aggressive behavior. Social encounters took place in grouped and isolated mice lacking CB1r (CB1KO) and in wild-type (WT) littermates. Cognitive impulsivity was evaluated in the delayed reinforcement task (DRT). Gene expression analyses of monoaminoox...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2013.07.013
更新日期:2013-12-01 00:00:00
abstract::Nicotine improves endotoxic manifestations of hypotension and cardiac autonomic dysfunction in rats. Here, we test the hypothesis that brainstem antiinflammatory pathways of α7/α4β2 nicotinic acetylcholine receptors (nAChRs) modulate endotoxic cardiovascular derangements. Pharmacologic and molecular studies were perfo...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2019.107683
更新日期:2019-10-01 00:00:00
abstract::Intensive computerized auditory training results in improved cognition for schizophrenia patients, but participants show variation in their cognitive gains and the biological factors that affect the response to training are unknown. Single nucleotide polymorphisms (SNPs) in the catechol-O-methyltransferase (COMT) gene...
journal_title:Neuropharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.neuropharm.2012.07.048
更新日期:2013-01-01 00:00:00
abstract::Biochemical, behavioral and electrophysiological evidence suggests interactions between pathways containing neuronal nicotinic acetylcholine receptors (NAChRs) and excitatory amino acid receptors. Recently, protective effects of nicotine against N-methyl-D-aspartate (NMDA)-induced toxicity in primary cortical cultures...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/s0028-3908(96)00162-1
更新日期:1997-01-01 00:00:00
abstract::Addiction is associated with changes in synaptic plasticity mediated, in part, by alterations in the trafficking and stabilization of AMPA receptors at synapses within the nucleus accumbens. Exposure to cocaine can lead to protein kinase C-mediated phosphorylation of GluA2 AMPA subunits and this phosphorylation event ...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2016.09.010
更新日期:2016-12-01 00:00:00
abstract::The present experiments investigated the ability of LY392098, a novel positive allosteric modulator of AMPA receptors, to potentiate AMPA receptor-mediated currents of neurons in the prefrontal cortex (PFC). Co-application of LY392098 (0.03-10 microM) with AMPA (5 microM) enhanced current through AMPA receptor/channel...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/s0028-3908(00)00195-7
更新日期:2001-06-01 00:00:00
abstract::Activation of the kappa opioid receptor (KOR) system mediates negative emotional states and considerable evidence suggests that KOR and their natural ligand, dynorphin, are involved in ethanol dependence and reward. The central amygdala (CeA) plays a major role in alcohol dependence and reinforcement. Dynorphin peptid...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2013.10.005
更新日期:2014-02-01 00:00:00
abstract::Central administration of corticotropin-like peptides generally blocks the analgesic action of opiate ligands, yet it is unclear whether this is due to an independent hyperalgesic action of corticotropin or to some other mechanism. Single cells in the ventromedial medulla of the anaesthetized rat were characterized as...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/0028-3908(87)90130-4
更新日期:1987-12-01 00:00:00
abstract::Purines are ubiquitous endogenous metabolites, and their roles as signalling molecules, especially in the case of adenosine and ATP, are well documented. The release of purines is increased when cells are highly activated, stressed or damaged, and this is known to have profound effects on various organ systems. Recent...
journal_title:Neuropharmacology
pub_type: 杂志文章,评审
doi:10.1016/s0028-3908(97)00123-8
更新日期:1997-09-01 00:00:00
abstract::The effects of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) on nicotinic acetylcholine (ACh) receptor channels were studied in cultured myocytes of 1-day-old Xenopus embryos. The amplitude and decay time of iontophoretic ACh-induced currents were reduced by MPTP in a concentration-dependent manner. The inhibito...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/0028-3908(94)90094-9
更新日期:1994-01-01 00:00:00
abstract::Despite evidence from psychiatry and psychology clinics pointing to altered cognition and decision making following the consumption of cannabis, the effects of cannabis derivatives are still under dispute and the mechanisms of cannabinoid effects on cognition are not known. In this study, we used effort-based and dela...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2018.01.021
更新日期:2018-05-01 00:00:00