Abstract：
:We measured the activity of several acid hydrolases in oligodendrocyte and mixed glial (predominantly astrocytic) cell cultures prepared from neonatal rat cerebra. When compared with the mixed glial cultures, the cultured oligodendrocytes exhibited higher levels for all the hydrolases when activities were normalized to protein content. When enzymic activities were examined as a function of DNA content, oligodendrocytic alpha-L-fucosidase, beta-D-glucuronidase, arylsulfatase, and N-acetyl-beta-D-glucosaminidase were higher than in mixed glial cultures, whereas the activities of alpha-D-glucosidase, beta-D-galactosidase and acid phosphatase were not elevated. These differences could not be accounted for by the fetal bovine serum present in the culture medium. The enrichment in acid hydrolase specific activities in the oligodendrocytes may be associated with a rapid turnover of at least some of the extensive myelin-like membrane formed by these cultured cells. Alternatively, the enrichment of acid hydrolase activity in the oligodendrocytes may be associated with intracellular vesicles of lysosomal origin which may play a role in myelin-like membrane assembly. Exactly which of the above two processes, or possible combinations thereof, is responsible for the present finding is not known.
journal_name
Neurochem Resjournal_title
Neurochemical researchauthors
Bradel EJ,Sloan HRdoi
10.1007/BF00970764subject
Has Abstractpub_date
1988-10-01 00:00:00pages
929-36issue
10eissn
0364-3190issn
1573-6903journal_volume
13pub_type
杂志文章abstract：:Activities toward arachidonyl-labelled phospholipase A2 substrates were assayed in fractions of white matter and cerebral cortex from control subjects and in fractions of demyelinated plaque, normal-appearing white matter and cerebral cortex from subjects who died with multiple sclerosis. Membranous activity at pH 8.6...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00992509
更新日期：1995-11-01 00:00:00
abstract：:The labeling of RNA in young and adult rat brain has been studied by measuring in vitro (tissue slices incubation) the incorporation of labeled uridine into RNA of total tissue and of the various subcellular fractions purified from cerebral hemispheres of 1- and 10-month-old rats. Gel electrophoretic analysis of the n...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00965100
更新日期：1983-04-01 00:00:00
abstract：:The vanilloid receptor 1(VR1) is a nonselective cation channel that is activated by pungent vanilloid compound, extracellular protons, or noxious heat. mRNA of VR1 and vanilloid receptor 1-like receptor (VRL1) were expressed in PC12 cells, and only VRI mRNA was detected in glioma and A10 cell lines. VRI protein was de...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/b:nere.0000018839.59457.5c
更新日期：2004-04-01 00:00:00
abstract：:Germline mutations in genes encoding succinate dehydrogenase subunits are associated with the development of familial pheochromocytomas and paragangliomas [hereditary paraganglioma/pheochromocytoma syndrome (HPPS)]. In particular, a mutation in succinate dehydrogenase subunit B (SDHB) is highly associated with abdomin...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-015-1738-3
更新日期：2016-04-01 00:00:00
abstract：:Due to the biological importance of sodium and its relative scarcity within many natural environments, 'salt appetite' has evolved whereby dietary salt is highly sought after and palatable when tasted. In addition to peripheral responses, salt depletion is detected within the brain via circumventricular organs and 11β...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/s11064-017-2336-3
更新日期：2018-01-01 00:00:00
abstract：:There is evidence that many of the GABA(A) receptor subunits contain consensus sequence for tyrosine kinase, and phosphorylation may play a key role in ethanol's regulation of GABA(A) receptors. Recently, we investigated the effect of chronic exposure of ethanol (CE) on tyrosine kinase phosphorylation and reported tha...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-006-9124-9
更新日期：2006-09-01 00:00:00
abstract：:Astrocytes occupy a strategic position in the brain where they can act as an interface between neurones and blood vessels, and neurones and the cerebro-spinal fluid. This location is ideal for functioning as interoceptors, as they may sense changes in brain microenvironment and contribute to the adaptive homeostatic r...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/s11064-015-1562-9
更新日期：2015-12-01 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
abstract：:Secretases degrade amyloid precursor protein (APP) releasing fragments (beta-peptides A beta, A beta x) that assemble to form hallmark extracellular deposits in Alzheimer's disease (AD) correlating with disease severity. As such, secretases supply targets for therapeutic intervention and form the focus of this overvie...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1023/a:1023211323853
更新日期：2003-07-01 00:00:00
abstract：:Excitatory and inhibitory neurotransmission in the central nervous system can be modulated by neurosteroids. We previously found that in rat hippocampal slices allopregnanolone (3α-hydroxy-5α-pregnan-20-one), a positive GABA(A) receptor modulator, suppresses the epileptic discharges induced by 4-aminopyridine (4-AP), ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-011-0649-1
更新日期：2012-03-01 00:00:00
abstract：:The oxidation of pyruvate is mediated by the pyruvate dehydrogenase complex (PDHC; EC 1.2.4.1, EC 2.3.1.12 and EC 1.6.4.3) whose catalytic activity is influenced by phosphorylation and by product inhibition. 2-Oxoglutarate and 3-hydroxybutyrate are readily utilized by brain mitochondria and inhibit pyruvate oxidation....
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00970527
更新日期：1987-08-01 00:00:00
abstract：:A variety of naturally occurring amino acids, their isomers, and synthetic analogs were tested for their ability to inhibit uptake of [3H]glutamate into presynaptic vesicles from bovine cerebral cortex. Strongest inhibition (Ki < 1mM) was observed for trans-1-aminocyclopentane-1,3-dicarboxylic acid (t-ACPD) and erythr...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00966925
更新日期：1993-01-01 00:00:00
abstract：:The presynaptic dopamine (DA) D2 receptor-mediated regulation of ATP-sensitive potassium (K+ATP) channels was examined in slices of the rat caudate-putamen. When slices were incubated with the specific D2 receptor antagonist (-)-sulpiride (SLP), a concentration-dependent increase of extracellular DA release was observ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1026620316090
更新日期：2000-12-01 00:00:00
abstract：:Cognitive impairment in diabetes (CID) is a severe chronic complication of diabetes mellitus (DM). It has been hypothesized that diabetes can lead to cognitive dysfunction due to expression changes of excitatory neurotransmission mediated by N-methyl-D-aspartate receptors (NMDAR) and α-amino-3-hydroxy-5-methyl-4-isoxa...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-019-02733-4
更新日期：2019-04-01 00:00:00
abstract：:Sonic hedgehog (Shh), a secreted glycoprotein factor, can activate the Shh pathway, which has been implicated in neuronal polarization involving neurite outgrowth. However, little evidence is available about the effect of Shh on neurite outgrowth in primary cortical neurons and its potential mechanism. Here, we reveal...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-015-1736-5
更新日期：2016-04-01 00:00:00
abstract：:The effect of maternal hypoxia on the modification of the fetal brain cell membrane N-methyl-D-aspartate (NMDA) receptor and its modulatory sites was investigated. Experiments were conducted in pregnant guinea pigs of 60 days of gestation. Guinea pig fetuses were exposed to maternal hypoxia (FiO2 = 7%) for 60 minutes....
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00968402
更新日期：1992-12-01 00:00:00
abstract：:The Ca(2+)-dependent release of aspartate from hippocampal preparations was first reported 35 years ago, but the functional significance of this process remains uncertain. Aspartate satisfies all the criteria normally required for identification of a CNS transmitter. It is synthesized in nerve terminals, is accumulate...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/s11064-010-0291-3
更新日期：2011-04-01 00:00:00
abstract：:Exercise increases both the consumption of oxygen and the production of reactive species in biological tissues, and this is counterbalanced by antioxidant adaptations to regular physical training. When the intensity of exercise fluctuates between mild and moderate, it improves the status of reduction-oxidation balance...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-014-1339-6
更新日期：2014-08-01 00:00:00
abstract：:We have utilized quantitative autoradiography with the GABA(A) receptor chloride channel blocker [35S]t-butylbicyclophosphorothionate ([35S]TBPS) in rodent brain sections to investigate if differential proton modulation of various GABA(A) receptor subtypes expressed in various brain regions are differentially sensitiv...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/b:nere.0000018849.54169.c4
更新日期：2004-04-01 00:00:00
abstract：:Somatostatin (SS) is an inhibitory regulator of secretory and proliferative responses that activates a group of receptors in the plasma membrane termed SSR1-5. SSR2 is one of the most abundant SSR, which also is expressed in high numbers in many neuroendocrine tumor types. Here, we describe a study of the presence and...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1022848718109
更新日期：2003-04-01 00:00:00
abstract：:There is ample evidence stating Polychlorinated biphenyls (PCBs) as neurotoxins. In the current study, we have analyzed the behavioural impact of PCBs exposure in adult rats and assessed the simultaneous effect of antioxidant melatonin against the PCBs action. The rats were grouped into four and treated intraperitonea...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-016-2087-6
更新日期：2017-02-01 00:00:00
abstract：:Neuropeptides are derived from large and inactive proteins which require endoproteolytic processing for the biosynthesis of the bioactive peptides. The maturation of pro-neuropeptide to neuropeptide is believed to be performed by ortholog pro-protein convertase EGL-3 in Caenorhabditis elegans (C. elegans). Furthermore...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-018-2636-2
更新日期：2018-11-01 00:00:00
abstract：:Using sodium (NaN3)-induced anoxia plus aglycaemia as a model of chemically-induced ischemia, we have characterized the endogenous release of excitatory and inhibitory amino acids from superfused hippocampal slices. Chemical ischemia produced an azide (1-30 mM) dose-dependent increase in the efflux of glutamate, aspar...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1011094728469
更新日期：2001-02-01 00:00:00
abstract：:The ability of Sendai virosomes or Lipofectin to introduce an AAV vector into primary rat brain astroglial cultures was characterized. The pJDT95npy vector was constructed by inserting rat NPY cDNA downstream from the indigenous AAV p5, p19 and p40 promoters in pJDT95. Lipofectin-mediated transfection with pJDT95npy (...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00967701
更新日期：1994-06-01 00:00:00
abstract：:Microglia, the resident immune cells of the CNS, are primary regulators of the neuroimmune response to injury. Type I interferons (IFNs), including the IFNαs and IFNβ, are key cytokines in the innate immune system. Their activity is implicated in the regulation of microglial function both during development and in res...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/s11064-017-2307-8
更新日期：2017-09-01 00:00:00
abstract：:Incubation of [3H]-tyrosine methionine5-enkephalin (MET) with human brain preparations (100,000g supernatant; sections of the limbic system, thalamus, basal ganglia, cerebellum, and cortex) results in its rapid and complete degradation; over 95% of the initial labeled tyrosine is recovered as the free aminoacid within...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-007-9418-6
更新日期：2008-01-01 00:00:00
abstract：:It is well known that the principal biomolecules involved in Alzheimer's disease (AD) are acetylcholinesterase (AChE), acetylcholine (ACh) and the amyloid beta peptide of 42 amino acid residues (Aβ42). ACh plays an important role in human memory and learning, but it is susceptible to hydrolysis by AChE, while the aggr...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-014-1400-5
更新日期：2014-11-01 00:00:00
abstract：:Previous studies suggest that alterations of brain glutamate synthesis and release occur in experimental thiamine deficiency. In order to assess the integrity of post-synaptic glutamatergic receptors in thiamine deficiency, binding sites for [3H]glutamate (displaced by NMDA), [3H]-kainate, and [3H]quisqualate (AMPA si...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00995378
更新日期：1995-10-01 00:00:00
abstract：:The effects of neuroleptic treatments on dopamine transporters and on dopamine receptors was investigated in the forebrain of adult rats treated for 21 days with either haloperidol, clozapine or saline. The dopamine D1 receptors, labeled with [3H]SCH23390, increased in nucleus accumbens, latero-dorsal rostral neostria...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1022405621365
更新日期：1998-01-01 00:00:00
abstract：:Remyelination promoting human IgMs effectively increase the number of myelinated axons in animal models of multiple sclerosis. Hence, they ultimately stimulate myelin production by oligodendrocytes (OLs); however, their exact mechanism of action remains to be elucidated, and in particular, it remains unclear whether t...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-018-2701-x
更新日期：2019-06-01 00:00:00
