Abstract:
:The effect of oxidative stress, induced by Fe(2+)-EDTA system, on Na+,K(+)-ATPase, Na+/CA2+ exchanger and membrane fluidity of synaptosomes was investigated. Synaptosomes isolated from gerbil whole forebrain were incubated in the presence of 200 microM FeSO4-EDTA per mg of protein at 37 degrees C for 30 min. The oxidative insult reduced Na+,K(+)-ATPase activity by 50.7 +/- 5.0% and Na+/Ca2+ exchanger activity measured in potassium and choline media by 47.1 +/- 7.2% and 46.7 +/- 8.6%, respectively. Membrane fluidity was also significantly reduced as observed with the 1,6-diphenyl-1,3,5-hexatriene probe. Stobadine, a pyridoindole derivative, prevented the decrease in membrane fluidity and in Na+/Ca2+ exchanger activity. The Na+,K(+)-ATPase activity was only partially protected by this lipid antioxidant, indicating a more complex mechanism of inhibition of this protein. The results of the present study suggest that the Na+/Ca2+ exchanger and the Na+,K(+)-ATPase are involved in oxidation stress-mediated disturbances of intracellular ion homeostasis and may contribute to cell injury.
journal_name
Neurochem Resjournal_title
Neurochemical researchauthors
Kaplán P,Matejovicová M,Mézesová Vdoi
10.1023/a:1021918931780subject
Has Abstractpub_date
1997-12-01 00:00:00pages
1523-9issue
12eissn
0364-3190issn
1573-6903journal_volume
22pub_type
杂志文章abstract::The tumor suppressor PTEN (phosphatase and tensin homolog deleted on chromosome 10) is not only a protein, but also a lipid phosphatase that can negatively regulate the serine/threonine kinase Akt. It has been reported that PTEN can be regulated by means of phosphorylation. However, whether PTEN can be regulated by an...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-009-9938-3
更新日期:2009-08-01 00:00:00
abstract::A double ligand enzyme-linked immunosorbent assay (ELISA) has been developed to detect antibodies against brain tissue antigens in the sera of patients with neurological diseases. The sera were tested on human white matter homogenate. The technique consists of successive incubations with the human serum to be tested, ...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00964651
更新日期:1985-04-01 00:00:00
abstract::Uridine, a pyrimidine nucleoside, has been proposed to be a potential signaling molecule in the central nervous system. The understanding of uridine release in the brain is therefore of fundamental importance. The present study was performed to determine the characteristics of basal and morphine-induced uridine releas...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-012-0903-1
更新日期:2013-01-01 00:00:00
abstract::An analytical method for the determination of saturated very long chain (VLC) fatty acids in the serum has been devised. Free fatty acids obtained after hydrolysis of total lipid extracts were converted into p-bromophenacyl esters. The derivatives were purified in two sequential steps by clean-up on C18 reversed-phase...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00968082
更新日期:1984-12-01 00:00:00
abstract::This work evaluated the in vitro effect of thiazolidin-4-ones on the activity of AChE (total and isoforms) isolated from the cerebral cortex, hippocampus, and lymphocytes. Kinetic parameters were evaluated and molecular docking was performed. Our results showed that thiazolidinones derived from 4-(methylthio)benzaldeh...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-019-02929-8
更新日期:2020-02-01 00:00:00
abstract::The phosphoinositide signal transduction system, and particularly, phospholipase Cbeta isozymes, are relevant in the etiopathogeny of human neuropsychiatric pathologies such as depression. Stimulation of phospholipase Cbeta activity by muscarinic receptors and G proteins was determined in crude and synaptosomal membra...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1023/b:nere.0000026412.66508.14
更新日期:2004-07-01 00:00:00
abstract::Rats were long-term morphine-intoxicated by a fluid-diet model ensuring an equal nutrient intake in morphinized and control rats. Uptake of neurotransmitters and D-ala2-met5-enkephalinamide (Enk) was studied in the particulate fractions (obtained at 10,000 g) from well defined brain regions of long-term intoxicated an...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00967978
更新日期:1986-02-01 00:00:00
abstract::The mortality of patients with malignant gliomas remains high despite the advancement in multi-modal therapy including surgery, radio- and chemotherapy. Glioma stem cells (GSCs), sharing some characteristics with normal neural stem cells (NSCs), contribute to the cellular origin for primary gliomas and the recurrence ...
journal_title:Neurochemical research
pub_type: 杂志文章,评审
doi:10.1007/s11064-012-0879-x
更新日期:2012-12-01 00:00:00
abstract::Docosahexaenoic acid (DHA) can alleviate cerebral ischemia/reperfusion injury by reducing blood-brain barrier permeability and maintaining its integrity, accompanied by an increased Ang-1/Ang-2 ratio; however, the underlying mechanisms of these effects remain unclear. Src-suppressed C kinase substrates (SSeCKS), a sub...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-019-02915-0
更新日期:2020-02-01 00:00:00
abstract::Two models of perturbed cerebellar ontogenesis were obtained by a single administration of methylazoxymethanol (MAM), a potent antimitotic agent, to mouse pups either on the day of birth (MAM0 mice) or at postnatal day 5 (MAM5 mice). The alterations of the cerebellar GABAergic system were studied by measuring glutamic...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00968010
更新日期:1992-07-01 00:00:00
abstract::Treatment for epilepsy, particularly temporal lobe epilepsy, is challenging. Baicalein has multiple effects, including anti-inflammatory action. However, little is known about its efficacy in treatment of epilepsy. In this study, we established a pilocarpine-induced rat model and used it for assessment of baicalein ef...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-020-03150-8
更新日期:2020-12-01 00:00:00
abstract::Zinc oxide nanoparticles (ZnO NPs) have diverse utility these days ranging from being part of nanosensors to be ingredient of cosmetics. Present study was designed to report the effect of variable doses of ZnO NPs on selected aspects of male albino mice behavior. Nano particles were synthesized by sol-gel auto-combust...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-016-2090-y
更新日期:2017-02-01 00:00:00
abstract::Ion channels are targets of various antiepileptic drugs. In cerebral presynaptic nerve endings Na(+) and Ca(2+) channels are particularly abundant, as they control neurotransmitter release, including the release of glutamate (Glu), the most concentrated excitatory amino acid neurotransmitter in the brain. Several pre-...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-015-1749-0
更新日期:2016-04-01 00:00:00
abstract::The potassium-stimulated release of acetylcholine, norepinephrine, serotonin, glutamate, and 4-aminobutyrate from superfused rat cortical slices was studied during hypoxia. A reduction in oxygen tensions from 603 +/- 6 to 22 +/- 2 mm Hg selectively altered the calcium-dependent efflux of these neurotransmitters, but d...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00964800
更新日期:1984-08-01 00:00:00
abstract::Amyloidogenic proteins (Abeta peptide) in Alzheimer's disease (AD) and alpha-synuclein (alpha-Syn) in Parkinson's disease (PD) are typically soluble monomeric precursors, which undergo remarkable conformational changes and culminate in the form of aggregates in diseased condition. Overlap of clinical and neuropatholog...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-006-9140-9
更新日期:2006-09-01 00:00:00
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journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-016-1922-0
更新日期:2016-08-01 00:00:00
abstract::DNase I sensitivity experiments were performed utilizing DNA probes to genes which are either transcribed in rat cortical neurons (the 68 kDa neurofilament gene and the neuron-specific enolase gene) or are transcriptionally silent (albumin). Results suggest that unlike liver, in which a hierarchy in chromatin conforma...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00969627
更新日期:1989-02-01 00:00:00
abstract::A sensitive and rapid assay method method for cysteic acid decarboxylase was develped which combined the selectivity of ion exchange resin (a complete retention of the substrate, cysteic acid, and exclusion of the product, taurine) with the speed of a vacuum filtration. The synthesis and purification of 35S-labeled cy...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00964144
更新日期:1979-04-01 00:00:00
abstract::Cloned fragments of members of the Drosophila and mouse major heat shock (hsp70) gene family were used to demonstrate that homologous sequences are present in the rabbit genome. After a physiologically relevant increase in body temperature of 3 degrees C, transcription of inducible hsp70 genes is detected in both the ...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00964846
更新日期:1985-09-01 00:00:00
abstract::Acetylcholinesterase (AChE) inhibition has been described as the main mechanism of organophosphate (OP)-evoked toxicity. OPs represent a human health threat, because chronic exposure to low doses can damage the developing brain, and acute exposure can produce long-lasting damage to adult brains, despite post-exposure ...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-015-1548-7
更新日期:2015-10-01 00:00:00
abstract::The serotoninergic system modulates nociceptive and locomotor spinal cord circuits. Exercise improves motor function and changes dopaminergic, noradrenergic, and serotonergic central systems. However, the direct relationship between serotonin, peripheral nerve lesion and aerobic treadmill exercise has not been studied...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-009-0066-x
更新日期:2010-03-01 00:00:00
abstract::The carnitine/acylcarnitine transporter is a transport system whose function is essential for the mitochondrial β-oxidation of fatty acids. Here, the presence of carnitine/acylcarnitine carrier (CACT) in nervous tissue and its sub-cellular localization in dorsal root ganglia (DRG) neurons have been investigated. Weste...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-013-1168-z
更新日期:2013-12-01 00:00:00
abstract::Studies on primary astrocytes cultured in vitro have shown that process formation involves changes in cytoskeletal proteins and release of tension on the substratum. Actin filament reorganization has previously been found to be the major cytoskeletal change occurring during process formation. These changes are relativ...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1023/a:1022413718447
更新日期:1998-03-01 00:00:00
abstract::We report further analysis of axonally transported proteoglycans in soluble and membranous subfractions of goldfish optic tectum. Distribution of transported 35SO4 radioactivity was 35.2% soluble, 63.4% Triton-NaCl extractable and 1.4% unextracted. Proteoglycans isolated on DEAE cellulose were treated with chondroitin...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00970543
更新日期:1995-02-01 00:00:00
abstract::Microdissection of selected regions of central nervous system (CNS) has provided the basis of modern chemoarchitectonics. Laser microdissection is a modern variant of the "Palkovits punch" technique and used together with gene array analysis has revolutionalized CNS molecular analysis. Here we describe the use of such...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-005-9008-4
更新日期:2006-02-01 00:00:00
abstract::The original version of this article unfortunately contained a mistake. The spelling of the author Tommaso Ianniti was incorrect and has been corrected as Tommaso Iannitti. The original article has been corrected. ...
journal_title:Neurochemical research
pub_type: 杂志文章,已发布勘误
doi:10.1007/s11064-018-2468-0
更新日期:2018-02-01 00:00:00
abstract::Shape-shifting, a phenomenon wide-spread in folklore, refers to the ability to physically change from one identity to another, typically from an innocuous entity to a destructive one. The amino acid D-serine over the last 25 years has "shape-shifted" into several identities: a purported glial transmitter activating N-...
journal_title:Neurochemical research
pub_type: 杂志文章,评审
doi:10.1007/s11064-020-03014-1
更新日期:2020-06-01 00:00:00
abstract::In order to develop a simplified method for long-term primary culture of highly-pure rat embryonic hippocampal neurons of low-density (10(3) cells/cm(2)), we optimized and modified conventional culturing methods. The modifications of our simplified method include: (1) combinational application of two growth substrates...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-010-0189-0
更新日期:2010-09-01 00:00:00
abstract::The spontaneously hypertensive rat (SHR) has been proposed as an animal model for attention-deficit hyperactivity disorder (ADHD). The behavioural problems have been suggested to be secondary to altered reinforcement mechanisms in which nucleus accumbens dopaminergic activity plays an important role. Interaction betwe...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00973098
更新日期:1995-04-01 00:00:00
abstract::Kainic acid-induced seizures produced early (2 hr) generalized edema and later (24 and 48 hr) necrotic edema in temporal cortex and hippocampus as measured by specific gravity changes. Mannitol given during the seizure partially protected against the early edema and prevented the necrotic edema indicating early edema ...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF01000241
更新日期:1987-06-01 00:00:00