Abstract：
:Adenosine exerts two parallel modulatory roles in the CNS, acting as a homeostatic modulator and also as a neuromodulator at the synaptic level. We will present evidence to suggest that these two different modulatory roles are fulfilled by extracellular adenosine originated from different metabolic sources, and involve receptors with different sub-cellular localisation. It is widely accepted that adenosine is an inhibitory modulator in the CNS, a notion that stems from the preponderant role of inhibitory adenosine A(1) receptors in defining the homeostatic modulatory role of adenosine. However, we will review recent data that suggests that the synaptically localised neuromodulatory role of adenosine depend on a balanced activation of inhibitory A(1) receptors and mostly facilitatory A(2A) receptors. This balanced activation of A(1) and A(2A) adenosine receptors depends not only on the transient levels of extracellular adenosine, but also on the direct interaction between A(1) and A(2A) receptors, which control each other's action.
journal_name
Neurochem Intjournal_title
Neurochemistry internationalauthors
Cunha RAdoi
10.1016/s0197-0186(00)00034-6subject
Has Abstractpub_date
2001-02-01 00:00:00pages
107-25issue
2eissn
0197-0186issn
1872-9754pii
S0197-0186(00)00034-6journal_volume
38pub_type
杂志文章,评审abstract：:MicroRNAs represent an abundant class of endogenously expressed 18-25 nucleotide non-coding RNA molecules that function to silence gene expression through a process of post-transcriptional modification. They exhibit varied and widespread functions during normal development and tissue homeostasis, and accordingly their...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2014.06.002
更新日期：2014-11-01 00:00:00
abstract：:Human glutamate dehydrogenase (GDH) gene was fused with a gene fragment encoding the nine amino acid (RKKRRQRRR) protein transduction domain of human immunodeficiency virus TAT protein in bacterial expression vector to produce genetic in-frame TAT-GDH fusion protein. The TAT-GDH protein can enter PC12 cells efficientl...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(01)00138-3
更新日期：2002-07-01 00:00:00
abstract：:There is experimental evidence from radioligand binding experiments for the existence of strong antagonistic interactions between different subtypes of adenosine and dopamine receptors in the striatum, mainly between adenosine A1 and dopamine D1 and between adenosine A2A and dopamine D2 receptors. These interactions s...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(99)00008-x
更新日期：1999-03-01 00:00:00
abstract：:Several endogenous brain substances which inhibit [3H]muscimol binding were isolated, and one of them has been purified to apparent homogeneity. The purification involved the extraction of brain tissue with water, followed by several steps of gel filtration column chromatography and high performance liquid chromatogra...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(93)90134-q
更新日期：1993-11-01 00:00:00
abstract：:25INBOMe ("25-I", "N-Bomb"), one of new psychoactive substances (NPSs), is being abused for recreational purpose. However, the liability for abuse or dependence has not been systematically studied yet. The objective of the present study was to evaluate rewarding and reinforcing effects of 25INBOMe using conditioned pl...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2019.02.007
更新日期：2019-05-01 00:00:00
abstract：:The changes in intracellar Ca(2+)-concentration, which occur during stimulation of vascular smooth muscle cells with excitatory agonists, are discussed. The effects of these agonists on the membrane potential of these cells are indirect, and mainly due to an activation of K(+)- and Cl(?)-channels by the release of cal...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(90)90152-j
更新日期：1990-01-01 00:00:00
abstract：:We have found that the platelet activating factor antagonist (BN52021) is an effective blocker of the glycine (Gly) receptor-mediated responses in the hippocampal pyramidal neurons of rat. Using the whole-cell voltage clamp and concentration clamp recording techniques, we investigated the mechanism underlying the inhi...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(01)00109-7
更新日期：2002-06-01 00:00:00
abstract：:SN1, a system N amino acid transporter specific for astrocytes, is mainly responsible for export of newly synthesized L-glutamine from the cells. Astrocytic retention of L-glutamine which plays a critical role in ammonia-induced astrocytic swelling resulting in brain edema, could be tentatively attributed to the impai...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2018.07.001
更新日期：2018-09-01 00:00:00
abstract：:1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), an inducer of parkinsonism, causes degeneration of nigro-striatal dopaminergic neurons by producing its neurotoxic metabolite, 1-methyl-4-phenylpiridium ion (MPP+), by monoamine oxidase B in glial cells. We used PC12 (rat pheochromocytoma cell line) as a model cell ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(94)90017-5
更新日期：1994-11-01 00:00:00
abstract：:Malfunctioning of high-affinity glutamate transporters is believed to contribute to the accumulation of toxic concentrations of glutamate and, thus, trigger the cellular mechanisms of neurodegeneration. Emerging data point to the presence of excitotoxic component in Alzheimer's disease (AD) and aberrant expression of ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(03)00023-8
更新日期：2003-09-01 00:00:00
abstract：:The activities of the enzymes glutathione reductase (GRD), glutathione peroxidase (GPX), and glutathione S-transferase (GST) were studied in several rat brain areas following the aspirative transection of the septohippocampal pathway (fimbria fornix) and the administration of nerve growth factor (NGF) or cytochrome c....
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(98)00076-x
更新日期：1999-02-01 00:00:00
abstract：:Alzheimer's disease (AD) is the most common age-related neurodegenerative disorder and is characterized by pathological aggregates of amyloid β-protein (Aβ) and tau protein. On the basis of genetic evidence, biochemical data, and animal models, Aβ has been suggested to be responsible for the pathogenesis of AD (the am...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2017.08.010
更新日期：2018-10-01 00:00:00
abstract：:Nucleotides can be released as signaling substances in the nervous system from both neural and glial cells. Their function is terminated by ecto-nucleotidases and sequential extracellular metabolism to the nucleoside. Recently considerable progress has been made in unraveling the molecular structure of an ecto-ATPase ...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/s0197-0186(97)00126-5
更新日期：1998-05-01 00:00:00
abstract：:Many peripheral substances, including ghrelin, induce neuronal activation in the brain. In the present study, we compared the effect of subcutaneously administered ghrelin and its three stable agonists: Dpr(3)ghr ([Dpr(N-octanoyl)(3)] ghrelin) (Dpr - diaminopropionic acid), YA GHRP-6 (H-Tyr-Ala-His-DTrp-Ala-Trp-DPhe-L...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2011.08.001
更新日期：2011-11-01 00:00:00
abstract：:We have investigated effects of continuous SSRI administration and abrupt discontinuation on biochemical and behavioral indices of rat brain serotonin function, and attempted to identify underlying mechanisms. Biochemistry of serotonin was assessed with brain tissue assays and microdialysis; behavior was assessed as t...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2010.10.001
更新日期：2010-12-01 00:00:00
abstract：:Recent studies suggest that the behavioral effects of chronic antidepressant treatment are mediated by stimulation of hippocampal neuronal plasticity and neurogenesis. The present study was designed to examine the effects of 3,6'-disinapoyl sucrose (DISS), a bioactive component of Polygala tenuifolia Willd, on the exp...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2009.12.004
更新日期：2010-02-01 00:00:00
abstract：:Several studies have indicated a functional differentiation across the septotemporal axis of rat hippocampus. Our previous results have shown that the alpha 1 beta 2 gamma 2-GABAA receptor subtype dominates in dorsal hippocampus (DH), while the alpha 2 beta 1 gamma 2-subtype prevails in ventral hippocampus (VH). We th...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2007.10.016
更新日期：2008-05-01 00:00:00
abstract：:Astroglial cells have a variety of roles in the central nervous system (CNS), providing a homeostasis for the proper functioning of neuronal cells. The classical view concerning the supportive role of astroglia towards associated neurons has to be extended. A great number of new evidences suggest that astrocytes inter...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2009.01.025
更新日期：2009-07-01 00:00:00
abstract：:The neuromodulator adenosine, has been shown to have the highest density of central uptake sites in the nucleus tractus solitarius in the dorsal brain stem. The nucleus tractus solitarius is involved in the central regulation of reflex cardiovascular activity suggesting that adenosine may also be involved in central c...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(94)90065-5
更新日期：1994-09-01 00:00:00
abstract：:Intracellular Ca2+ signals produced by the glutamate receptor agonist alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionate (AMPA; 5 microM) were measured in the somatic and dendritic regions of cerebellar Purkinje neurons in mature cerebellar control cultures (> or = 20 days in vitro) and cultures chronically treated...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(99)00058-3
更新日期：1999-08-01 00:00:00
abstract：:Recent in vitro studies have revealed that benzodiazepines, opiates, barbiturates and ethanol might influence GABA binding to CNS membrane sites. Further studies of such interactions might be helpful for explaining both the mechanisms of action of these psychoactive agents and the tolerance/dependence that might resul...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(83)90062-1
更新日期：1983-01-01 00:00:00
abstract：:Neurons with colocalized cholecystokinin and dopamine are present predominantly in the ventral tegmental area and project mainly to the caudal part of the medial nucleus accumbens. The activity of this dopamine system can be evaluated by means of the intracranial self-stimulation behavior on male Wistar rats having ch...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(87)90074-x
更新日期：1987-01-01 00:00:00
abstract：:The brain uses long-chain fatty acids (LCFAs) to a negligible extent as fuel for the mitochondrial energy generation, in contrast to other tissues that also demand high energy. Besides this generally accepted view, some studies using cultured neural cells or whole brain indicate a moderately active mitochondrial β-oxi...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2017.03.018
更新日期：2017-10-01 00:00:00
abstract：:Oxidative stress-induced neuronal death due to hydrogen peroxide overload plays a critical role in the pathogenesis of numerous neurological diseases. Insulin-like growth factor-1 (IGF-1) is important in maintaining neuronal survival, proliferation, and differentiation in the central nervous system. We now report that...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2007.04.005
更新日期：2007-11-01 00:00:00
abstract：:The Alzheimer's disease amyloid protein precursor (APP) gene is part of a multi-gene super-family from which sixteen homologous amyloid precursor-like proteins (APLP) and APP species homologues have been isolated and characterised. Comparison of exon structure (including the uncharacterised APL-1 gene), construction o...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/s0197-0186(99)00125-4
更新日期：2000-03-01 00:00:00
abstract：:Alzheimer disease (AD) is the most common form of adult dementia. Its pathological hallmarks are synaptic degeneration, deposition of amyloid plaques and neurofibrillary tangles, leading to neuronal loss. A few hypotheses have been proposed to explain AD pathogenesis. The beta-amyloid (Abeta) and hyperphosphorylated t...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2007.10.002
更新日期：2008-03-01 00:00:00
abstract：:Gliomas are the most common and malignant primary brain tumours and are associated with a poor prognosis despite the availability of multiple therapeutic options. Quercetin, a traditional Chinese medicinal herb, is an important flavonoid and has anti-cancer activity. Here, we evaluated whether quercetin could inhibit ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2014.12.001
更新日期：2015-01-01 00:00:00
abstract：:Glial scar is a major impediment to axonal regeneration in central nervous system (CNS) disorders. Overcoming this physical and biochemical barrier might be crucial for axonal regeneration and functional compensation during the progression of CNS disorders. The mammalian target of rapamycin (mTOR) is an evolutionarily...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2015.03.001
更新日期：2015-04-01 00:00:00
abstract：:The present study was aimed to investigate the effects of a chronic treatment with the dopamine uptake blocker nomifensine on the in vivo extracellular concentrations of dopamine, acetylcholine, glutamate and GABA in the prefrontal cortex, striatum and nucleus accumbens. Male Wistar rats received intraperitoneal (i.p....
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2007.08.005
更新日期：2008-02-01 00:00:00
abstract：:A sandwich enzyme immunoassay (EIA) was established by using purified human serum dopamine-?-hydroxylase (DBH) as a standard protein and a monospecific polyclonal antibody raised against human DBH purified from human pheochromocytoma. The EIA was applied to measuring DBH levels in human CSF from Parkinsonian patients ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(88)90126-x
更新日期：1988-01-01 00:00:00
