Abstract：
:Nicotinic receptors containing the alpha7 gene product are among the most abundant in the nervous system. Because of their widespread distribution and high relative permeability to calcium, the receptors regulate a diverse array of cellular events. On chick ciliary neurons the receptors are concentrated on somatic spines folded into discrete mats on the cell body and are overlaid by a large presynaptic calyx. The receptors co-localize with filamentous actin and the actin-associated protein drebrin which are concentrated in the spines. We show here that embryonic ciliary ganglion neurons grown in dissociated cell culture express and concentrate the receptors in large clusters or plaques that form at interneuronal interfaces between small clumps of neurons. The receptors resist detergent extraction even after disruption of the actin cytoskeleton, suggesting the importance of additional molecular mechanisms determining receptor location. The cell adhesion molecules N-CAM and N-cadherin are concentrated at the receptor plaques and may influence plaque stability. Although ciliary neurons do not normally contact each other in vivo, they do so in culture and may mimic interactions normally occurring between calyx and soma in vivo. As a result the cultures may prove useful for identifying components shaping development of postsynaptic specializations on neurons.
journal_name
Neuropharmacologyjournal_title
Neuropharmacologyauthors
Conroy WG,Ogden LF,Berg DKdoi
10.1016/s0028-3908(00)00132-5subject
Has Abstractpub_date
2000-10-01 00:00:00pages
2699-705issue
13eissn
0028-3908issn
1873-7064pii
S0028390800001325journal_volume
39pub_type
杂志文章abstract：:γ-Aminobutyric acid type A receptors that contain the δ subunit (δGABAA receptors) are expressed in multiple types of neurons throughout the central nervous system, where they generate a tonic conductance that shapes neuronal excitability and synaptic plasticity. These receptors regulate a variety of important behavio...
journal_title：Neuropharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.neuropharm.2014.08.003
更新日期：2015-01-01 00:00:00
abstract：BACKGROUND:After neonatal ventral hippocampal lesions (NVHLs), adult rats exhibit evidence of neural processing deficits relevant to schizophrenia, including reduced prepulse inhibition (PPI) of acoustic startle and impaired sensory processing. In intact rats, the regulation of PPI by the ventral hippocampus (VH) is me...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2013.06.003
更新日期：2013-12-01 00:00:00
abstract：:GABA(B) receptor antagonists have been shown to have antidepressant-like properties in animal models and thus, could represent a novel approach for the treatment of depression. The neurobiological mechanisms underlying these effects are currently unknown. Adult hippocampal neurogenesis (the birth of new neurons) is th...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2012.06.066
更新日期：2012-12-01 00:00:00
abstract：:We have used whole-cell patch clamp electrophysiology to characterise the actions of the P2 antagonist, cibacron blue, on the rat recombinant P2X4 receptor, stably expressed in human embryonic kidney 293 (HEK293) cells. In single cells, adenosine triphosphate (ATP) evoked inward currents, but the response was subject ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(98)00153-1
更新日期：1998-12-01 00:00:00
abstract：:G protein-coupled receptor 35 (GPR35) is an orphan G protein-coupled receptor (GPCR) that can be activated by kynurenic acid at high micromolar concentrations. A previously unappreciated mechanism of action of GPR35 has emerged as a Gαi/o-coupled inhibitor of synaptic transmission, a finding that has significant impli...
journal_title：Neuropharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.neuropharm.2015.07.035
更新日期：2017-02-01 00:00:00
abstract：:Glutamate receptors play an essential role in fear-related learning and memory. The present study was designed to assess the role of the group I metabotropic glutamate receptor (mGluR) subtype 5 in the acquisition and retrieval of conditioned fear in rats. The selective mGluR5 antagonist 2-methyl-6-(phenylethynyl)-pyr...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(01)00036-3
更新日期：2001-07-01 00:00:00
abstract：:The antagonist effects of the 4-carboxyphenylglycines: (S)-4-carboxy-3hydroxyphenylglycine (4C3HPG), (S)-4-carboxyphenylglycine (4CPG) and (+)-alpha-methyl-4-carboxyphenylglycine (M4CPG) were compared on functional responses of human metabotropic glutamate receptor (mGluR) subtypes mGluR1 alpha and mGluR5a. These rece...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(95)00069-i
更新日期：1995-08-01 00:00:00
abstract：:Metabotropic glutamate receptor subtype 5 (mGluR5), encoded by the GRM5 gene, represents a compelling novel drug target for the treatment of schizophrenia. mGluR5 is a postsynaptic G-protein coupled glutamate receptor strongly linked with several critical cellular processes that are reported to be disrupted in schizop...
journal_title：Neuropharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.neuropharm.2015.08.003
更新日期：2017-03-15 00:00:00
abstract：:It has been hypothesized that Acetyl-L-Carnitine (ALC) contributes to mitochondrial ATP production through maintenance of key mitochondrial proteins and protects mitochondria against oxidative stress. We have investigated the role of ALC on the expression of two forms of synaptic plasticity in the striatum: (i) the ph...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2008.05.015
更新日期：2008-08-01 00:00:00
abstract：:Reserpine (5 mg/kg s.c.) was given to rats kept under a reversed light-dark cycle and 5-hydroxytryptamine (5-HT) and 5-hydroxyindole acetic acid (5-HIAA) determined in frontal cortex tissue and dialysate at various times after drug treatment. The decline and return of spontaneous locomotor activity was also measured. ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(94)90088-4
更新日期：1994-03-01 00:00:00
abstract：:Amyotrophic Lateral Sclerosis (ALS) mostly affects motor neurons, but non-motor neural and cognitive alterations have been reported in ALS mouse models and patients. Here, we evaluated if time-dependent biphasic changes in synaptic transmission and plasticity occur in hippocampal synapses of ALS SOD1G93A mice. Recordi...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2020.108106
更新日期：2020-07-01 00:00:00
abstract：:The preparation of an isolated hemisected spinal cord preparation, maintained in vitro, from mature (180-300 g body weight) rats is described. Sacral and coccygeal segments (S2-Co1) gave consistent ventral root reflexes (DR-VRP) from electrical stimulation of dorsal roots. The mean latency and amplitude of the fastest...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(88)90138-4
更新日期：1988-05-01 00:00:00
abstract：:In several strains of mice: Swiss CD1, BALB, DBA2, C57, the mixed D1/D2 direct dopamine receptor agonist, apomorphine, elicited a marked and virtually similar hypothermic effect. By contrast, in C3H mice, this effect was obviously less and shorter. Similarly, the hypothermic effects of two direct D2 dopamine agonists ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(92)90007-c
更新日期：1992-11-01 00:00:00
abstract：:Stimulant drugs produce reward but also activate stress-responsive systems. The corticotropin-releasing factor (CRF) and the related hypothalamus-pituitary-adrenal (HPA) axis stress-responsive systems are activated by stimulant drugs. However, their role in stimulant drug-induced reward remains poorly understood. Here...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2017.01.024
更新日期：2017-05-01 00:00:00
abstract：:The ability of (-)N-n-propylnorapomorphine and selective D1 and D2 dopamine receptor agonists and antagonists to modify the release of [3H]dopamine, induced by potassium from the nucleus accumbens, was studied using an in vitro superfusion technique. (-)N-n-Propylnorapomorphine, in picomolar concentrations, inhibited ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(90)90090-e
更新日期：1990-04-01 00:00:00
abstract：:G-protein coupled dopamine and metabotropic glutamate receptors (mGlu) can modulate neurotransmission during Parkinson's disease (PD)-like neurodegeneration. PET imaging studies in a unilateral dopamine denervation model (6-OHDA) showed a significant inverse correlation of presynaptic mGlu4 and postsynaptic mGlu5 expr...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2015.11.010
更新日期：2016-09-01 00:00:00
abstract：:Autophagy is an intracellular degradation pathway with dynamic interactions for eliminating damaged organelles and protein aggregates by lysosomal digestion. The EGFP-conjugated microtubule-associated protein 1 light chain 3 (EGFP-LC3) serves to monitor autophagic process. Extracellular β-amyloid peptide accumulation ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2015.02.003
更新日期：2015-06-01 00:00:00
abstract：:Mutations in hundreds of genes contribute to cognitive and behavioral dysfunction associated with developmental brain disorders (DBDs). Due to the sheer number of risk factors available for study combined with the cost of developing new animal models, it remains an open question how genes should be prioritized for in-...
journal_title：Neuropharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.neuropharm.2015.07.029
更新日期：2016-01-01 00:00:00
abstract：:The central nucleus of the amygdala (CeA) is a component of the limbic fear-anxiety circuit, and has also been implicated in regulation of the hypothalamic-pituitary-adrenal (HPA) stress axis. The CeA receives dense noradrenergic innervation, and is rich in expression of alpha(1)-adrenergic receptors. We hypothesized ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(02)00292-7
更新日期：2002-12-01 00:00:00
abstract：:Amphetamine-type stimulants (ATS) are the second most consumed illicit drug worldwide and lack good treatments for associated substance use disorders, lagging behind other addictive drugs. For this reason, a deeper understanding of the pharmacodynamics of ATS is required. The present study seeks to determine amphetami...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2018.10.032
更新日期：2019-01-01 00:00:00
abstract：:The contribution of metabotropic glutamate receptors (mGluRs) to the modulation of nociception by the periaqueductal gray (PAG) matter was investigated in mice. Intra-PAG microinjection of (IS,3R)-ACPD, an agonist of groups I and II mGluRs, as well as (S)-3,5-DHPG, a selective agonist of group I mGluRs, increased the ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(98)00126-9
更新日期：1998-12-01 00:00:00
abstract：:Animal models of alcohol drinking and dependence are a critical resource for understanding the neurobiological mechanisms and development of more effective treatments for alcohol use disorder (AUD). Because most rat strains do not voluntarily consume large enough quantities of alcohol to adequately model heavy drinkin...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2020.108393
更新日期：2021-02-15 00:00:00
abstract：:Clinical neuropathologic studies suggest that the selective vulnerability of hippocampal CA1 pyramidal projection neurons plays a key role in the onset of cognitive impairment during the early phases of Alzheimer's disease (AD). Disruption of this neuronal population likely affects hippocampal pre- and postsynaptic ef...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2013.10.018
更新日期：2014-04-01 00:00:00
abstract：:Neurons in thalamic midline and paraventricular nuclei (PVT) display a unique slow afterhyperpolarizing potential (sAHP) following the low threshold spike (LTS) generated by activation of their low voltage Ca(2+) channels. We evaluated the conductances underlying this sAHP using whole-cell patch-clamp recordings in ra...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2014.06.023
更新日期：2014-11-01 00:00:00
abstract：:The serotonergic system is known to modulate and mediate many of the central nervous system effects of stress. Here we investigated the ability of serotonergic agents to reverse the inhibition of the induction of hippocampal long-term potentiation (LTP) caused by prior exposure to inescapable stress. Elevated platform...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2008.05.006
更新日期：2008-08-01 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 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...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(93)90053-6
更新日期：1993-06-01 00:00:00
abstract：:Brief exposure to an elevated plus-maze has been shown to induce antinociception in male mice, a reaction that is not attenuated by manipulations of opiate receptors but which is fully blocked by diazepam. The present study examined the effects of the benzodiazepine receptor antagonist, flumazenil (5-20 mg/kg), on beh...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(91)90021-3
更新日期：1991-12-01 00:00:00
abstract：:Brain injury generates the release of a multitude of factors including extracellular nucleotides, which exhibit bi-functional properties and contribute to both detrimental actions in the acute phase and also protective and reparative actions in the later recovery phase to allow neuroregeneration. A promising strategy ...
journal_title：Neuropharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.neuropharm.2015.09.002
更新日期：2016-05-01 00:00:00
abstract：:Changes in brain reward and control systems of frontal cortical areas including the orbitofrontal cortex (OFC) are associated with alcohol use disorders (AUD). The OFC is extensively innervated by monoamines, and drugs that target monoamine receptors have been used to treat a number of neuropsychiatric diseases, inclu...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2018.04.019
更新日期：2018-07-15 00:00:00
