Abstract：
:The effect of injection of inhibitors of GABA-transaminase into the nucleus tractus solitarius (NTS) on arterial pressure was examined in anesthetized rats. Two typical GABA-transaminase inhibitors, gamma-vinylGABA (GVG) and aminooxyacetic acid (AOAA), increased arterial pressure when injected into the NTS, a response similar to that elicited by direct stimulation of GABA receptors in the NTS. However, with neither drug was the response consistent with the action of inhibiting GABA-T. The response elicited by GVG, despite GVG acting as an irreversible inhibitor of GABA-T, could be reproduced with subsequent injections. Still, the pressor response to GVG could be reversed by blockade of GABAB-receptors with CGP-35348, suggesting that GVG injection did increase GABA-mediated neural transmission. In contrast, the pressor response to AOAA could not be antagonized by blockade of either GABAA or GABAB receptors. These results suggest that acute inhibition of GABA-T does not necessarily result in an increase in GABA-mediated neural transmission.
journal_name
Neuropharmacologyjournal_title
Neuropharmacologyauthors
Tsukamoto K,Sved AFdoi
10.1016/0028-3908(93)90053-6subject
Has Abstractpub_date
1993-06-01 00:00:00pages
575-9issue
6eissn
0028-3908issn
1873-7064journal_volume
32pub_type
杂志文章abstract：:Previous research shows Ouabain (OUA) to bind Na, K-ATPase, thereby triggering a number of signaling pathways, including the transcription factors NFᴋB and CREB. These transcription factors play a key role in the regulation of BDNF and WNT-β-catenin signaling cascades, which are involved in neuroprotection and memory ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2018.08.008
更新日期：2018-09-15 00:00:00
abstract：:It has been shown that endogenous adenosine 5'-triphosphate (ATP) as well as its exogenously applied structural analogue, 2-methylthio ATP (2-MeSATP), facilitate the release of dopamine from axon terminals in the rat nucleus accumbens (NAc) by activating ATP-sensitive P2 receptors. In the present study, reversed micro...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(01)00033-8
更新日期：2001-06-01 00:00:00
abstract：:The neuronal nicotinic acetylcholine receptor alpha7 (nAChR alpha7) may be involved in cognitive deficits in Schizophrenia and Alzheimer's disease. A fast pharmacological characterization of homomeric alpha7 receptors is mostly hampered by their low functional expression levels in heterologous expression systems. In t...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2004.10.003
更新日期：2005-02-01 00:00:00
abstract：:Dopamine neurons in the ventral tegmental area (VTA) play a very important role in a variety of physiological as well as addictive behaviors. However, a clear understanding of the cellular mechanisms underlying these behaviors is still missing. Within the VTA, recent studies have shown that forms of synaptic plasticit...
journal_title：Neuropharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.neuropharm.2008.07.024
更新日期：2009-01-01 00:00:00
abstract：:To identify the enzymes involved in the induction of N-methyl-D-aspartate (NMDA) receptor-dependent long-term potentiation (LTP) at CA1 synapses of two-week-old rats we have tested various kinase inhibitors. Surprisingly, given the large body of evidence supporting a role for calcium/calmodulin-dependent protein kinas...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(03)00336-8
更新日期：2003-11-01 00:00:00
abstract：:The inhibitory effects of 4-phenyl-1,2,3,4-tetrahydroisoquinoline (4-PTIQ) on methamphetamine-induced increases in dopamine and locomotion were investigated. Methamphetamine hydrochloride (10 micrograms) microinjected into the nucleus accumbens increased both locomotor activity and extracellular dopamine levels, measu...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(93)90184-5
更新日期：1993-08-01 00:00:00
abstract：:Behavioral flexibility is in close proximity to dentate gyrus (DG) function and long-term depression (LTD), but the role of DG LTD in behavioral flexibility has hitherto been unexplored. Although the functions of alpha-Ca2+/calmodulin-dependent protein kinase II (CaMKII) have been studied extensively, the role of βCaM...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2016.12.013
更新日期：2017-04-01 00:00:00
abstract：:Vulnerability to the addictive effects of drugs of abuse varies among individuals, but the biological basis of these differences are poorly known. This work tries to increase this knowledge by comparing the brain proteome of animals with different rate of extinction of cocaine-seeking behaviour. To achieve this goal, ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2009.04.005
更新日期：2009-07-01 00:00:00
abstract：:The effect of neurotrophic factors on apoptosis induced by ionomycin, a potent Ca2+ ionophore, was investigated using cultured cortical neurons from embryonic rats. Brain-derived neurotophic factor (BDNF) and neurotrophin-3 (NT-3) prevented the ionomycin-mediated cell death in a dose-dependent manner. In contrast to t...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(98)00189-0
更新日期：1999-02-01 00:00:00
abstract：:Schizophrenic patients have been shown to exhibit abnormal cortical gamma band oscillation (GBO), which is thought to be related to the symptoms of schizophrenia, including cognitive impairment. Recently, non-competitive NMDA receptor (NMDAr) antagonists such as MK-801 and ketamine have been reported to increase the b...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2014.05.037
更新日期：2014-10-01 00:00:00
abstract：:YM992, (S)-2-[[(7-fluoro-4-indanyl)oxy]methyl]morpholine monohydrochloride, exhibited the biochemical profile of a selective serotonin (5-HT) reuptake inhibitor (SSRI) with 5-HT2A receptor antagonistic activity. YM922 showed the same high affinity as fluoxetine against the 5-HT reuptake site (Ki = 21 nM) and a similar...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(96)00079-2
更新日期：1996-01-01 00:00:00
abstract：:This study confirms and extends an earlier report that acute administration of the serotonin (5-HT) antagonist, mianserin, caused a marked decrease in the density of 5-HT2 binding sites in brain of the rat (Blackshear and Sanders-Bush, 1982). Using [3H]ketanserin, a selective ligand for the 5-HT2 site, the present stu...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(86)90146-2
更新日期：1986-11-01 00:00:00
abstract：:The effect of varying the ratio of extraction volume to tissue weight (EVR) on the apparent concentration of histamine (HA) in the hypothalamus of the rat was examined. Increasing the weight of tissue (by pooling 1, 2 or 3 hypothalami), in a constant extraction volume, resulted in progressive decreases in apparent con...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(87)90263-2
更新日期：1987-08-01 00:00:00
abstract：:The role of orexin receptors in the nucleus accumbens shell in rat turning behaviour of rats was studied. Unilateral injection of neither the orexin 1 and 2 receptor agonist orexin A (2 microg) nor the orexin 1 receptor antagonist SB 334867 (20 ng) into the nucleus accumbens shell elicited turning behaviour. Unilatera...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2007.11.006
更新日期：2008-03-01 00:00:00
abstract：:The group I mGluR agonist (S)-3,5-dihydroxyphenylglycine (3,5-DHPG) and the mGluR5 agonist 2-chloro-5-hydroxyphenylglycine both induced a membrane depolarisation of striatal cholinergic interneurons. The response to 3,5-DHPG was blocked only by the coadministration of mGluR1 and mGluR5 antagonists, suggesting that bot...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(00)00184-2
更新日期：2001-03-01 00:00:00
abstract：:Disruption of reproductive function is a hallmark of abuse of anabolic androgenic steroids (AAS) in female subjects. To understand the central actions of AAS, patch clamp recordings were made in estrous, diestrous and AAS-treated mice from gonadotropin releasing hormone (GnRH) neurons, neurons in the medial preoptic a...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2011.05.008
更新日期：2011-09-01 00:00:00
abstract：:The effects of various benzodiazepine receptor ligands on the GABA autoreceptor have been studied in slices of cerebral cortex of the rat. The GABAA receptor agonist muscimol inhibited the K+-stimulated release of [3H]GABA with a pIC25 of 7.65 +/- 0.11. This effect was antagonised by the GABAA receptor antagonist bicu...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(88)90059-7
更新日期：1988-10-01 00:00:00
abstract：:The effects of thyrotropin-releasing hormone (TRH) and an analog of this hormone, MK-771, were determined on body shaking behavior and on biochemical estimates of the activity of dopamine (DA) neurons in the rat. Both compounds elicited dose-related episodes of "wet-dog shakes". A dose of TRH (20 mg/kg, i.p.) which ca...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(84)90105-9
更新日期：1984-07-01 00:00:00
abstract：:Marijuana impairs learning and memory through actions of its psychoactive constituent, delta-9-tetrahydrocannabinol (Delta(9)-THC), in the hippocampus, through activation of cannabinoid CB1 receptors (CB1R). CB1Rs are found on glutamate and GABA neuron axon terminals in the hippocampus where they control neurotransmit...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2010.04.013
更新日期：2010-07-01 00:00:00
abstract：:D-Tubocurarine is a potent competitive antagonist of two members of the ligand-gated ion channel family, the muscle-type nicotinic acetylcholine receptor (AChR) and serotonin type-3 receptor (5HT3R). We have used a series of analogs of D-tubocurarine to determine the effects of methylation, stereoisomerization and hal...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(98)00010-0
更新日期：1998-01-01 00:00:00
abstract：:The effect of U-50,488H, a selective kappa opioid receptor agonist on the intake of food in food-deprived and non-deprived spontaneously hypertensive and normotensive Wistar-Kyoto rats was determined. In food deprived Wistar-Kyoto rats, intraperitoneal administration of U-50,488H, produced a bell-shaped curve on the i...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(89)90069-5
更新日期：1989-01-01 00:00:00
abstract：:We have used a focal stimulation method to study neurotransmission at synapses onto hippocampal pyramidal neurons in cultures derived from neonatal rats. Single functional boutons were visualized by activity-dependent preloading with the fluorescent dye FM1-43, then focally stimulated by localized application of eleva...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(95)00143-t
更新日期：1995-11-01 00:00:00
abstract：:Gliomas are the leading cause of cancer-related mortality worldwide, and the incidence is increasing. Because gliomas often become resistant to radiation treatment, it is urgent to develop novel therapeutic methods that are more effective and less toxic than current therapies so as to enhance patient survival and qual...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2014.05.009
更新日期：2015-02-01 00:00:00
abstract：:The group II metabotropic glutamate (mGlu) receptors comprised of the mGlu2 and mGlu3 receptor subtypes have gained recognition in recent years as potential targets for psychiatric disorders, including anxiety and schizophrenia. In addition to studies already indicating which subtype mediates the anxiolytic and anti-p...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2012.05.023
更新日期：2013-03-01 00:00:00
abstract：:The binding of three, structurally distinct, 5-hydroxytryptamine3 (5-HT3) receptor radioligands was characterized in rat cerebral cortex, rabbit ileum myenteric plexus and NG-108-15 neuroblastoma cells. The density of sites labeled by the three ligands in rat cortex or in rabbit ileum was markedly different. [3H]Quipa...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(93)90142-p
更新日期：1993-09-01 00:00:00
abstract：:The long held view is cocaine's pharmacological effects are mediated by monoamine reuptake inhibition. However, drugs with rapid brain penetration like sibutramine, bupropion, mazindol and tesofensine, which are equal to or more potent than cocaine as dopamine reuptake inhibitors, produce no discernable subjective eff...
journal_title：Neuropharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.neuropharm.2014.06.012
更新日期：2014-12-01 00:00:00
abstract：:The heart rate of the anaesthetized rabbit was slowed by electrical stimulation of the hypothalamus with 7-9 sec trains of 250-330 microA pulses, duration 1 msec, frequency 60 Hz. This vagally-mediated cardio-decelerator response was attenuated in a dose-dependent manner after intravenous administration of phenoxybenz...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(83)90258-7
更新日期：1983-01-01 00:00:00
abstract：:Kindling is a form of experimental epilepsy in which periodic electrical stimulation of a brain pathway induces a permanently hyperexcitable state. A previous study demonstrated that kindling enhances the sensitivity of hippocampal CA3 pyramidal cells to NMDA (N-methyl-D-aspartate), consistent with a greater expressio...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(94)90001-9
更新日期：1994-02-01 00:00:00
abstract：:beta-Endorphin is the putative precursor molecule of gamma- and alpha-endorphin. To investigate whether long-term changes in the activity of cells producing beta-endorphin are paralleled by alterations in the enzymatic processing of beta-endorphin, the effects of chronic treatment of rats with dopamine (DA) receptor l...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(90)90084-5
更新日期：1990-01-01 00:00:00
abstract：:The group II metabotropic glutamate receptor (mGluR) antagonists LY341495 and LY366457 were profiled for their effects on locomotor activity in mice. Both compounds significantly increased locomotor activity. Observational studies showed that rearing was also selectively increased. LY366457-induced hyperactivity was s...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(03)00232-6
更新日期：2003-10-01 00:00:00
