Abstract:
:4-Phenyl-1,2,3,4-tetrahydroisoquinoline (4-PTIQ) has previously been shown to have antagonistic properties to methamphetamine in the spinal cord. Administration of 4-PTIQ (5 mg/kg, s.c.) reduced the ambulation induced by methamphetamine (0.5 mg/kg, s.c.) in rats. Methamphetamine (3 micrograms), injected unilaterally into the nucleus accumbens, increased ambulation. Alone, 4-PTIQ (10 micrograms) failed to elicit ambulation; however, it inhibited the methamphetamine-induced increase in ambulation. The alpha 1-antagonist prazosin (0.5 micrograms) or the beta-antagonist propranolol (3 micrograms) showed no effect on ambulation induced by methamphetamine. Haloperidol (5 ng), which possesses strong dopamine-blocking activity, abolished the ambulation induced by methamphetamine. The drug 4-PTIQ had weak affinity for dopamine D1 and D2 receptors. These results support the possibility that the inhibitory effects of 4-PTIQ on the ambulation-stimulating effects of methamphetamine, are due to blocking of the dopamine-releasing effect of methamphetamine but not due to dopamine blocking effects.
journal_name
Neuropharmacologyjournal_title
Neuropharmacologyauthors
Tateyama M,Ohta S,Nagao T,Hirobe M,Ono Hdoi
10.1016/0028-3908(93)90107-esubject
Has Abstractpub_date
1993-03-01 00:00:00pages
243-8issue
3eissn
0028-3908issn
1873-7064journal_volume
32pub_type
杂志文章abstract::Based on significant amount of evidence, it is now generally believed, that one underlying cause for neurodegenerative diseases, could be dysregulation in inflammatory processes. The actual mechanisms involved are not yet well understood. Several studies have demonstrated the potent analgesic and anti-inflammatory act...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2010.11.004
更新日期:2011-02-01 00:00:00
abstract::Glutamatergic neurotransmission in the CNS plays a predominant role in learning and memory. While NMDA receptors have been extensively studied, less is known about the involvement of group I metabotropic glutamate receptors in this area. The purpose of the present study was to evaluate the contribution of mGluR1 and m...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2006.07.008
更新日期:2006-12-01 00:00:00
abstract::The cognitive impairments and negative symptoms experienced by schizophrenia patients still await effective treatment. Alpha7 nicotinic acetylcholine receptors (α7 nAChRs) have gain considerable attention in this regard. It has been recently proposed that positive allosteric modulators (PAMs) of α7 nAChRs may represen...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2016.10.002
更新日期:2017-02-01 00:00:00
abstract::Data have been collected indicating possible functions for histamine in brain but there are only a very few data, collected exclusively with behavioural tests, about the effects of histamine on the perception of the pain, an important aspect in the homeostasis of the human body. The purpose of the present study was to...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/0028-3908(92)90133-a
更新日期:1992-09-01 00:00:00
abstract::Of the ionotropic glutamatergic receptors, the NMDA receptor is clearly implicated in the acute and chronic effects of ethanol; however, the role of the AMPA receptor in mediating the effects of ethanol in vivo is as yet unclear. Using mice deficient in the AMPA receptor subunit GluR1 (GluR1-/- mice), we investigated ...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/s0028-3908(03)00174-6
更新日期:2003-09-01 00:00:00
abstract::Under conditions in which NG-nitro-L-arginine (NOArg) treatment prevents morphine tolerance, NOArg induces a slow progressive inhibition of nitric oxide synthase (NOS), starting at approx. 20% after a single treatment and increasing to approx. 65% after 10 days. Studies designed to examine potential changes in NOS lev...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/0028-3908(94)90050-7
更新日期:1994-11-01 00:00:00
abstract::The effect of nifedipine, a calcium channel antagonist, on changes in the density of glucocorticoid (GR) and/or mineralocorticoid receptors (MR), induced by long-term treatment with antidepressant drugs (imipramine and amitriptyline) or electroconvulsive shock (ECS) was investigated in the rat hippocampus. Long-term t...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/0028-3908(93)90036-3
更新日期:1993-12-01 00:00:00
abstract::Grip strength deficit is a measure of pain-induced functional disability in rheumatic disease. We tested whether this parameter and tactile allodynia, the standard pain measure in preclinical studies, show parallels in their response to analgesics and basic mechanisms. Mice with periarticular injections of complete Fr...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2017.07.029
更新日期:2017-10-01 00:00:00
abstract::In the rat subthalamic nucleus, which plays a critical role in the control of motor behaviour, specific binding of [3H]-prazosin was detected by radioligand binding to homogenates and by autoradiography in slices. [3H]-Prazosin binding to homogenates (Bmax 71 +/- 5 fmol/mg protein; Kd 0.27 +/- 0.05 nM) was competed fo...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/s0028-3908(03)00315-0
更新日期:2003-12-01 00:00:00
abstract::In the present study, we investigated the effects of N(G)-nitro-L-arginine (L-NAME), an inhibitor of nitric oxide synthase, on repeated cerebral ischemia-induced impairment of spatial memory of the 8-arm radial maze in rats. Repeated ischemia (10 min ischemia x 2 times with 1 h interval) impaired the spatial memory in...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/s0028-3908(02)00404-5
更新日期:2003-03-01 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 a stimulation of dopamine D1 receptors by using (+/-)SKF 38393 on the cortical EEG in rats which were chronically implanted with electrodes were studied. Administration of SKF 38393 (3 or 9 mg/kg, s.c.) produced alterations suggesting an arousal in the EEG: the power in all of the frequency bands decrea...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/0028-3908(93)90175-3
更新日期:1993-05-01 00:00:00
abstract::Chloralose-anesthetized rats, spinalized at C1, were used to investigate the effects of spinal infusion of dopamine on renal sympathetic nerve activity (RSNA). A subarachnoid spinal superfusion technique was used to localize dopamine in the spinal cord while renal sympathetic nerve activity was recorded from the left ...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/0028-3908(83)90242-3
更新日期:1983-03-01 00:00:00
abstract::Parasympathetic preganglionic cardiac vagal neurons (CVNs) which dominate the control of heart rate are located within the nucleus ambiguus (NA). Serotonin (5HT), and in particular 5HT2 receptors, play an important role in cardiovascular function in the brainstem. However, there is a lack of information on the mechani...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2008.02.016
更新日期:2008-06-01 00:00:00
abstract::Gene-environment interactions drive experience-dependent changes in the brain that alter cognition, emotion and behaviour. Positive engagement with the environment, through novel experience and physical activity, can improve brain function, although the mechanisms mediating such experience-dependent plasticity remain ...
journal_title:Neuropharmacology
pub_type: 杂志文章,评审
doi:10.1016/j.neuropharm.2017.12.038
更新日期:2019-02-01 00:00:00
abstract::G protein regulated inward rectifying potassium channels (GIRKs) are activated by G protein coupled receptors (GPCRs) via the G protein betagamma subunits. However, little is known about the effects of different GPCRs on the deactivation kinetics of transmitter-mediated GIRK currents. In the present study we investiga...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/s0028-3908(00)00080-0
更新日期:2000-09-01 00:00:00
abstract::Rat striatal slices, preincubated with [3H]dopamine (DA) and [14C]choline, were superfused continuously. Detection of radioactivity was used to monitor the release of the neurotransmitters DA and acetylcholine (ACh). 6-Cyano-7-nitroquinoxaline-2,3-dione (CNQX) and 2,3-dihydroxy-6-nitro-7-sulfamoylbenzo(f)quinoxaline (...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/s0028-3908(97)00166-4
更新日期:1997-11-01 00:00:00
abstract::Fluorescence based probes provide a novel way to study the dynamic internalization process of G protein-coupled receptors (GPCRs). Recent advances in the rational design of fluorescent ligands for GPCRs have been used here to generate new fluorescent agonists containing tripeptide linkers for the adenosine A3 receptor...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2015.04.013
更新日期:2015-11-01 00:00:00
abstract::Nitric oxide synthase (NOS) is an enzyme which has a distinct cytokine-inducible isoform (iNOS). Many cytokine receptors have an intracellular tyrosine kinase domain. Here we have used two tyrosine kinase inhibitors (genistein and lavendustin A) to investigate the potential role of tyrosine kinase activation in the in...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/s0028-3908(99)00127-6
更新日期:2000-01-04 00:00:00
abstract::Recent studies have demonstrated that (+)-5-methyl-10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5,10-imine (MK-801), a use-dependent blocker of N-methyl-D-aspartate (NMDA)-activated membrane channels, attenuates the development of long-term potentiation in vitro and kindling in vivo. Both of these phenomena are manifestat...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/0028-3908(89)90076-2
更新日期:1989-05-01 00:00:00
abstract::Chlorpromazine, given either subcutaneously (0.375 mg/kg) or unilaterally into the preoptic/anterior hypothalamic area through a chronically implanted cannula (20 micrograms), was found to enhance the hypothermic response to delta-9-tetrahydrocannabinol (THC; 5 mg/kg i.p.) in unrestrained adult male MF1 mice, kept at ...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/0028-3908(88)90164-5
更新日期:1988-02-01 00:00:00
abstract::Research on the nicotinic cholinergic system function in the brain was previously mainly derived from animal studies, yet, research in humans is growing. Up to date, findings allow significant advances on the understanding of nicotinic cholinergic effects on human cognition, emotion and behavior using a range of funct...
journal_title:Neuropharmacology
pub_type: 杂志文章,评审
doi:10.1016/j.neuropharm.2014.10.021
更新日期:2015-09-01 00:00:00
abstract::The pharmacological profile of (S)-(+)-2-(3'-carboxybicyclo[1.1.1]pentyl)-glycine (CBPG) and of other group 1 metabotropic glutamate (mGlu) receptor agents were studied in BHK cells transfected with mGlu receptor subtypes or in native receptors in brain slices by measuring second messenger responses. The mGlu receptor...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/s0028-3908(99)00021-0
更新日期:1999-07-01 00:00:00
abstract::Administration of 0.13% lead acetate solution as drinking fluid to breeding mice was without significant effect on the numbers of live or dead births or on weight of pups at 1 day. The appearance of fur was delayed and the body weights at 21 days and 31-38 weeks were smaller than in controls. On weaning, the treated o...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/0028-3908(86)90036-5
更新日期:1986-02-01 00:00:00
abstract::24S-hydroxycholesterol (24S-HC) is a brain-derived product of lipid metabolism present in the systemic circulation, where its level can change significantly in response to physiological and pathophysiological conditions. Here, using electrophysiological and optical approaches, we have found a high sensitivity to 24S-H...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2017.01.030
更新日期:2017-05-01 00:00:00
abstract::Transgenic mice that accumulate Aβ peptides in the CNS are commonly used to interrogate functional consequences of Alzheimer's disease-associated amyloidopathy. In addition to changes to synaptic function, there is also growing evidence that changes to intrinsic excitability of neurones can arise in these models of am...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2013.09.004
更新日期:2014-04-01 00:00:00
abstract:BACKGROUND:Nucleus accumbens (NAc) and prefrontal cortex (PFC) dopaminergic and glutamatergic systems are involved in fear/anxiety-related behaviors; meanwhile NAc dopaminergic system activity is mediated by PFC via NAc glutamatergic projections. This study has investigated the involvement of NAc shell dopaminergic sys...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2013.03.017
更新日期:2013-08-01 00:00:00
abstract::The dorsal striatum plays a key role in motor control and cognitive processes. Proper functioning of the striatum relies on the fine dynamic balance between the direct pathway projection medium spiny neurons (MSNs) that express D1 dopamine receptor (D1 MSNs) and indirect pathway projection MSNs that express D2 dopamin...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2016.03.037
更新日期:2016-08-01 00:00:00
abstract::Using the rat model of early life seizures (ELS), which has exaggerated mGluR mediated long-term depression of synaptic strength (mGluR-LTD) in adulthood, we probed the signaling cascades underlying mGluR-LTD induction. Several inhibitors completely blocked mGluR-LTD in control but not in ELS rats: the proteasome, the...
journal_title:Neuropharmacology
pub_type: 杂志文章
doi:10.1016/j.neuropharm.2014.04.011
更新日期:2014-09-01 00:00:00
abstract::Opioid drugs such as heroin interact directly with opioid receptors whilst other addictive drugs, including marijuana, alcohol and nicotine indirectly activate endogenous opioid systems to contribute to their rewarding properties. The opioid system therefore plays a key role in addiction neurobiology and continues to ...
journal_title:Neuropharmacology
pub_type: 杂志文章,评审
doi:10.1016/j.neuropharm.2008.07.033
更新日期:2009-01-01 00:00:00