Abstract:
:The significant increase of free calcium concentration ([Ca2+]i) was found in rat cerebral cortex synaptosomes and hippocampal crude synaptosomal fraction after their exposure to glutamate. But no change of [Ca2+]i was revealed in cerebellar synaptosomes, the slight increase of [Ca2+]i in striatal synaptosomes was not significant. The presence of Ng-nitro-L-arginine methyl ester (L-NAME) in the incubation medium practically prevented the increase of [Ca2+]i initiated by glutamate in cerebral cortex synaptosomes, but not in hippocampal ones. The significant diminution of [Ca2+]i in the presence of this inhibitor was shown in striatal synaptosomes exposed to glutamate. Na+,K+-ATPase activity is significantly lower in cerebral cortex, striatal and hippocampal synaptosomes exposed to glutamate. L-NAME prevented the inactivation of this enzyme by glutamate. In cerebellar synaptosomes the tendency to the decrease of enzymatic activity in the presence of L-NAME was on the contrary noticed. Thus, the data obtained provide evidence of the protective effect of NO synthase inhibitor in brain cortex and striatal synaptosomes, but not in cerebellar synaptosomes. Synaptosomes appear to be an adequate model to study the regional differences in the mechanism of toxic effect of excitatory amino acids.
journal_name
Neurochem Resjournal_title
Neurochemical researchauthors
Avrova NF,Shestak KI,Zakharova IO,Sokolova TV,Leont'ev VGdoi
10.1023/a:1020752101736keywords:
subject
Has Abstractpub_date
1999-09-01 00:00:00pages
1101-6issue
9eissn
0364-3190issn
1573-6903journal_volume
24pub_type
杂志文章abstract::S100beta is a soluble protein released by glial cells mainly under the activation of the 5-HT1A receptor. It has been reported as a neuro-trophic and -tropic factor that promotes neurite maturation and outgrowth during development. This protein also plays a role in axonal stability and the plasticity underlying long-t...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-009-9915-x
更新日期:2009-08-01 00:00:00
abstract::The effects of carbachol (CCh) on the frequency (f) of the miniature endplate potentials were tested at temperatures between 5 and 30 degrees C. Higher CCh concentrations, 1 x 10(-5) and 5 x 10(-6) M, reduced the f to 60% and the temperature dependence was negligible. However, an inverse temperature dependence was fou...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1023/a:1012372115058
更新日期:2001-09-01 00:00:00
abstract::The neurotoxic effects of aluminum are generally associated with reduced antioxidant capacity, increased oxidative stress and apoptosis, which lead to the induction of neurodegenerative processes. Curcumin has a lipophilic polyphenol character and effects of antioxidant and anti-apoptotic. The present study was undert...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-019-02839-9
更新日期:2019-08-01 00:00:00
abstract::Precise control of the proliferation and differentiation of multipotent neural stem cells (NSCs) is crucial for the proper development of the nervous system. Although cyclinD1 has been implicated as a cause of cancer in many studies, its roles in NSCs remain elusive. In this study, we examined the over-expression of c...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-015-1635-9
更新日期:2015-08-01 00:00:00
abstract::3-Nitropropionic acid (3-NP)-induced neurotoxicity can be used as a model for the genetic neurodegenerative disorder Huntington's disease (HD). A metabolic profiling strategy was adopted to explore the biochemical consequences of 3-NP administered to rats in specific brain regions. (1)H NMR spectroscopy was used to ch...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-008-9904-5
更新日期:2009-07-01 00:00:00
abstract::Ursolic acid (UA) is a plant derived compound which is also a component of the standard human diet. It possesses a wide range of pharmacological properties, i.e., antioxidant, anti-inflammatory, antimicrobial and antitumor, which have been used in folk medicine for centuries. Moreover, influence of UA on central nervo...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-018-2505-z
更新日期:2018-05-01 00:00:00
abstract::The effect of ageing and the relationships between the catalytic properties of enzymes linked to Krebs' cycle, electron transfer chain, glutamate and aminoacid metabolism of cerebral cortex, a functional area very sensitive to both age and ischemia, were studied on mitochondria of adult and aged rats, after complete i...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-009-0004-y
更新日期:2009-12-01 00:00:00
abstract::Neurovascular injury comprises a wide spectrum of pathophysiology that underlies the progression of brain injury after cerebral ischemia. Recently, it has been shown that activation of the integrin-associated protein CD47 mediates the development of blood-brain barrier injury and edema after cerebral ischemia. However...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-010-0159-6
更新日期:2010-07-01 00:00:00
abstract::Endogenous and xenobiotic sulphur-containing convulsant and non-convulsant compounds containing structural moieties of, or bearing a structural resemblance to, GABA and homocysteine were tested in binding studies for their potency in displacing the GABA-mimetic [3H]muscimol from specific, high-affinity sites (Kd = 3.6...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00971006
更新日期:1987-07-01 00:00:00
abstract::VGF nerve growth factor inducible (VGF) is a neuropeptide precursor induced by brain-derived neurotrophic factor and nerve growth factor. VGF is increased in the prefrontal cortex and cerebrospinal fluid in schizophrenia patients. In our previous study, VGF-overexpressing mice exhibited schizophrenia-like behaviors an...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-018-2684-7
更新日期:2019-02-01 00:00:00
abstract::Glutamate dehydrogenase (GDH) is a homohexameric enzyme that catalyzes the reversible oxidative deamination of L-glutamate to 2-oxoglutarate. Only in the animal kingdom is this enzyme heavily allosterically regulated by a wide array of metabolites. The major activators are ADP and leucine and inhibitors include GTP, p...
journal_title:Neurochemical research
pub_type: 杂志文章,评审
doi:10.1007/s11064-013-1173-2
更新日期:2014-01-01 00:00:00
abstract::Natural products including those derived from plants, have over the years greatly contributed to the development of therapeutic drugs. Polygodial and drimanial are sesquiterpenes isolated from the bark of the plant Drymis Winteri (Winteraceae) that exhibit antinociceptive properties. Since peripheral glutamate present...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-005-9033-3
更新日期:2006-03-01 00:00:00
abstract::Tanshinone I (TsI) is an important lipophilic diterpene extracted from Danshen (Radix Salvia miltiorrhizae) and has been used in Asia for the treatment of cerebrovascular diseases such as ischemic stroke. In this study, we examined the neuroprotective effect of TsI against ischemic damage and its neuroprotective mecha...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-014-1312-4
更新日期:2014-07-01 00:00:00
abstract::The activities of L-glutamate decarboxylase (GAD), GABA-transaminase (GABA-T), choline acetyltransferase (CAT), and cysteic and cysteinesulfinic acids decarboxylase (CAD/CSAD) in putamen and frontal cortex in both Huntington's chorea and normal tissues were measured. The greatest difference between Huntington's and no...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00964435
更新日期:1979-10-01 00:00:00
abstract::A major part of the Ca-activated proteolytic activity in the soluble fraction from rabbit brain could be due to the activity of the neutral thiol-proteases calpain I and II. The activity of calpains exceeded that of the endogenous inhibitor, calpastatin, at all developmental stages studied. The level of calpains incre...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00965622
更新日期:1989-11-01 00:00:00
abstract::Poly(A)-RNA prepared from the brains of 30-day-old male rats has been shown to direct the synthesis of neuron-specific enolase (NSE) in a cell-free system derived from rabbit reticulocytes. The newly synthesized polypeptides were immunoprecipitated and analyzed on SDS-polyacrylamide slab gels. Autoradiography indicate...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00964225
更新日期:1980-04-01 00:00:00
abstract::Despite immense advances in the treatment strategies, the effective treatment of patients suffering from neuropathic pain remains challenging. Saikosaponin a possesses anti-inflammatory activity. However, the role of saikosaponin a in neuropathic pain is still unclear. Therefore, the objective of this study was to inv...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-014-1407-y
更新日期:2014-11-01 00:00:00
abstract::The role of polyamines (PA) synthesis in NMDA receptor-mediated 45Ca2+ fluxes and norepinephrine release was studied in rat hippocampal synaptosomes. NMDA (50 microM) caused a sharp (> 2-fold) transient increase in PA synthesis regulating enzyme, ornithine decarboxylase (ODC) activity with concomitant elevation in PA ...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00972471
更新日期:1994-11-01 00:00:00
abstract::It is well known that antioxidants containing sulfhydryl (-SH) groups are protective against the toxic effects of mercury. The current study was designed to elucidate the mechanism(s) of the cytoprotective effects of glutathione (GSH) and N-acetylcysteine (NAC) against the toxicity of inorganic mercury (HgCl(2)) in ne...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-009-9962-3
更新日期:2009-09-01 00:00:00
abstract::Mammalian MTH1 protein, a MutT-related protein, catalyzes the hydrolysis of 8-oxo-7,8-dihydroguanosine triphosphate (8-oxoGTP) to monophosphate, thereby preventing incorporation of 8-oxo-7,8-dihydroguanine (8-oxoguanine) into RNA. In this study, we applied immunohistochemistry to follow the expression of MTH1 and the ...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-011-0484-4
更新日期:2011-08-01 00:00:00
abstract::Somatostatin contents of striatum, hippocampus, and pons medulla have been followed in two inbred strains of mice (C57B1/6J and Balb/cJ) with aging and long term alcohol exposure (over a 25 month period of intoxication). Marked strain dependent differences in basic levels of somatostatin and genotypic variations in re...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00965332
更新日期:1986-05-01 00:00:00
abstract::Tumor Necrosis Factor Receptor Super Family 6 gene (TNFRSF6), also known as FAS, encodes the Fas antigen, a cell surface receptor mediating cell apoptosis, situated on chromosome 10q located near the region of linkage to sporadic Alzheimer's disease (sAD). FAS levels have been reported elevated in the brain of AD pati...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-007-9329-6
更新日期:2007-09-01 00:00:00
abstract::Evidence suggests that apoptosis contributes significantly to cell death after cerebral ischemia. Our recent studies that utilized human umbilical cord blood-derived mesenchymal stem cells (hUCBSCs) demonstrated the potential of hUCBSCs to inhibit neuronal apoptosis in a rat model of CNS injury. Therefore, we hypothes...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-014-1341-z
更新日期:2014-08-01 00:00:00
abstract::Presenilins (PSs) are catalytic components of the γ-secretase complex that produces Aβ peptides. Substrates of γ-secretase are membrane-bound protein fragments deriving from the cleavage of extracellular sequence of cell surface proteins. APP-derived γ-secretase substrates are cleaved at gamma (γ) sites to produce Aβ ...
journal_title:Neurochemical research
pub_type: 杂志文章,评审
doi:10.1007/s11064-013-1003-6
更新日期:2014-01-01 00:00:00
abstract::The effects of pre-treatment with ENA-713, an acetylcholinesterase (AChE) inhibitor, on changes in pre- and postsynaptic cholinergic indices in gerbil brain following transient ischemia were studied at 4 and 14 days after recirculation. In the ischemic group, hippocampal acetylcholine (ACh) level was significantly red...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00966804
更新日期:1994-02-01 00:00:00
abstract::The effect of phenobarbital (100 mg/kg i.p.) and 6-aminonicotinamide (6AN) (35 mg/kg i.p.) on enzyme activities related to energy transduction was investigated on the homogenate "in toto", non-synaptic mitochondrial fraction and synaptosomal fraction isolated from different rat brain areas (cerebral cortex, hippocampu...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00971361
更新日期:1987-01-01 00:00:00
abstract::NMDA, the specific agonist of glutamate gated ion channels permeable to calcium, is implicated as a causal factor in the pathogenesis of several neurobiological disorders such as stroke, seizures, ischemia, and chronic neurodegenerative diseases. On the other hand, evidence on the roles of oxidative mechanisms involve...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF02533102
更新日期:1996-12-01 00:00:00
abstract::The concept of exosomes has been progressively changed from the status of cellular trashcans to multitasking organelles involved in many processes, including internalization, transport and transfer of macromolecules such as proteins, lipids and nucleic acids. While underpinning the mechanisms behind neurodegeneration ...
journal_title:Neurochemical research
pub_type: 杂志文章,评审
doi:10.1007/s11064-020-03111-1
更新日期:2020-11-01 00:00:00
abstract::Using the mouse maximal electroshock test, the reference model of tonic-clonic seizures, the aim of the present study was to determine the type of interaction between mexiletine (a class IB antiarrhythmic drug) and classical antiepileptics: valproate, carbamazepine, phenytoin, and phenobarbital. Isobolographic analysi...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-015-1812-x
更新日期:2016-05-01 00:00:00
abstract::Mutations in genes for Alzheimer's disease (AD) result in a modulating of gene expressions in the brains of patients with AD. The aim of this study was to identify genes whose expression is modulated due to the over-expression of human mutant presenilin-2 (N141I) (hPS2m) in transgenic mice, which has previously been p...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-005-6787-6
更新日期:2005-08-01 00:00:00