Abstract：
:Cerebral microvessels isolated from perfused, adult murine brain produce a compound with the chromatographic properties of a monohydroxyeicosatetraenoic acid when incubated with arachidonic acid or stimulated with calcium ionophore A23187. The formation of this arachidonic acid metabolite is not reduced in the presence of the cyclooxygenase inhibitor ibuprofen, but it is abolished by the lipoxygenase inhibitor nordihydroguaiaretic acid. Analysis by gas chromatography combined with chemical ionization and electron impact mass spectrometry of reduced and nonreduced derivatives of the metabolite, indicate that the compound is 12-hydroxyeicosatetraenoic acid. Fractions of isolated microvessels enriched with capillaries produce 2.1 times more 12-hydroxyeicosatetraenoic acid per microgram of protein than do fractions of microvessels enriched with arterioles. These studies confirm that brain microvessels can produce 12-hydroxyeicosatetraenoic acid and strongly suggest that cerebral endothelia are the primary source of microvessel-derived 12-hydroxyeicosatetraenoic acid. They further suggest that in brain injury, the liberation and accumulation of arachidonic acid in cerebral tissues may lead to the production of 12-hydroxyeicosatetraenoic acid within microvessels. The 12-hydroxyeicosatetraenoic acid formed in this way may mediate some of the blood-brain barrier and cerebrovascular dysfunction that occurs following stroke, brain trauma, or seizures.
journal_name
J Neurochemjournal_title
Journal of neurochemistryauthors
Moore SA,Figard PH,Spector AA,Hart MNdoi
10.1111/j.1471-4159.1989.tb07345.xsubject
Has Abstractpub_date
1989-08-01 00:00:00pages
376-82issue
2eissn
0022-3042issn
1471-4159journal_volume
53pub_type
杂志文章abstract：:Most ingested ethanol is metabolized in the liver to acetaldehyde and then to acetate, which can be oxidized by the brain. This project assessed whether chronic exposure to alcohol can increase cerebral oxidation of acetate. Through metabolism, acetate may contribute to long-term adaptation to drinking. Two groups of ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/jnc.12405
更新日期：2013-11-01 00:00:00
abstract：:NMDA receptors are potentiated by phosphorylation in a subunit- and kinase-specific manner. Both native and recombinant NMDA receptors are inhibited by behaviorally relevant concentrations of ethanol. Whether the phosphorylation state of individual subunits modulates the ethanol sensitivity of these receptors is not k...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1999.721389.x
更新日期：1999-04-01 00:00:00
abstract：:Protein kinase A and protein kinase C are involved in processes that enhance glutamate release at glutamatergic nerve terminals. However, it is not known whether these two kinases co-exist within the same nerve terminal, nor is it clear what impact their simultaneous activation may have on neurotransmitter release. In...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.2003.02065.x
更新日期：2003-12-01 00:00:00
abstract：:Stroke is the third leading cause of death as dementia is a main symptom of Alzheimer's disease. One of the important mechanisms in the pathogeny of stroke is free radical production during the reperfusion period, therefore the effects of a type of natural antioxidant, i.e. Crataegus flavonoids (CF), on brain ischemic...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2004.02480.x
更新日期：2004-07-01 00:00:00
abstract：:Traumatic spinal cord injury has recently been shown to cause a rapid increase in free fatty acids (FFAs) and lipid degradation in cats. The present studies report a more delayed, time-dependent increase in FFAs and a concomitant decrease in phospholipids following traumatic spinal injury in rats. The largest percenta...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1987.tb05740.x
更新日期：1987-06-01 00:00:00
abstract：:To further analyze the action of copper on brain synaptic mechanisms, the brain dipeptide carnosine (beta-alanyl-L-histidine) was tested in Xenopus laevis oocytes expressing the rat P2X4 or P2X7 receptors. Ten micromolar copper halved the currents evoked by ATP in both receptors; co-application of carnosine plus coppe...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.0022-3042.2001.00732.x
更新日期：2002-02-01 00:00:00
abstract：:Environment-induced relapse is a major concern in drug addiction because of the strong associations formed between drug reward and environment. Cocaine-conditioned place preference is an ideal experimental tool to examine adaptations in the molecular pathways that are activated upon re-exposure to an environment previ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2008.05518.x
更新日期：2008-08-01 00:00:00
abstract：:The extracellular matrix (ECM) is important for both structural integrity and functions of the brain. Matrix metalloproteinases (MMPs) play major roles in ECM-remodeling under both physiological and pathological conditions. Reversion-inducing cysteine-rich protein with Kazal motifs (Reck) is a membrane-anchored MMP-re...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2010.06933.x
更新日期：2010-10-01 00:00:00
abstract：:The metabolism of L-tryptophan to the neuroactive kynurenine pathway metabolites, L-kynurenine, kynurenate and quinolinate, and the effects of two inhibitors of quinolinate synthesis (6-chlorotryptophan and 4-chloro-3-hydroxyanthranilate) were investigated by mass spectrometric assays in cultured cells and in vivo. Ce...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1995.65052217.x
更新日期：1995-11-01 00:00:00
abstract：:U-78518F, a 21-aminosteroid from the novel family of lipid peroxidation inhibitors (lazaroids), increased survival of dopamine (DA) neurons in mesencephalic cell cultures incubated with the neurotoxin 1-methyl-4-phenylpyridinium (MPP+). Protection against DA neuron death occurred with increasing concentrations of U-78...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1992.tb09314.x
更新日期：1992-01-01 00:00:00
abstract：:Stem cell-based approaches provide hope as a potential therapy for neurodegenerative diseases and stroke. One of the major scientific hurdles for stem cell therapy is the poor survival rate of the newly formed or transplanted neural stem cells. In this study, we found that low-dose treatment with the Heat shock protei...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2011.07239.x
更新日期：2011-05-01 00:00:00
abstract：:Slices of rabbit caudate and hypothalamus take up and accumulate [3H]imipramine. In superfused slices of both structures electrical stimulation or exposure to tyramine failed to release recently taken up [3H]imipramine. Depolarization by exposure to 30--60 mM-potassium caused only a small release of [3H]imipramine tha...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1982.tb08630.x
更新日期：1982-02-01 00:00:00
abstract：:Considerable evidence indicates that the amyloid-beta (Abeta) peptide, a proteolytic fragment of the amyloid precursor protein, is the pathogenic agent in Alzheimer's disease (AD). A number of proteases have been reported as capable of degrading Abeta, among them: neprilysin, insulin-degrading enzyme, endothelin-conve...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2006.04251.x
更新日期：2007-01-01 00:00:00
abstract：:Complex biological systems are best modeled as highly modular, fluid systems exhibiting a plasticity that allows them to adapt to a vast array of changing conditions. Here we highlight several novel network-based approaches to elucidate genetic networks underlying complex traits. These integrative genomic approaches c...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2006.03661.x
更新日期：2006-04-01 00:00:00
abstract：:The nuclear factor 1 (NF-1) motifs, NF-1 II/III, In the two 98-bp repeats of the transcription-regulatory region of JC virus (JCV), have a critical role in brain-specific transcription from the JCV early promoter-enhancer. In this study, the role of these motifs in transactivation of the JCV late promoter-enhancer (JC...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1996.67020473.x
更新日期：1996-08-01 00:00:00
abstract：:Nitric oxide (NO) has been implicated in both the pathogenesis of and protection from NMDA receptor-mediated neuronal injury. This apparent paradox has been attributed to alternate redox states of nitrogen monoxide, whereby, depending on the redox milieu, nitrogen monoxide can be neuroprotective via nitrosation chemis...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1999.0721843.x
更新日期：1999-05-01 00:00:00
abstract：:Declining levels of estrogen in women result in increases in gonadotropins such as luteinizing hormone (LH) through loss of feedback inhibition. LH, like estrogen, is modulated by hormone replacement therapy. However, the role of post-menopausal gonadotropin increases on cognition has not been evaluated. Here, we demo...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2009.06502.x
更新日期：2010-02-01 00:00:00
abstract：:Since emotional stress elicits brain activation, mitochondria should be a key component of stressed brain response. However, few studies have focused on mitochondria functioning in these conditions. In this work, we aimed to determine the effects of an acute restraint stress on rat brain mitochondrial functions, with ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/jnc.12811
更新日期：2014-11-01 00:00:00
abstract：:Our previous observations have shown that neuroactive steroid levels in the brain are affected by acute experimental autoimmune encephalomyelitis (EAE) with sex and regional specificity (Giatti et al. 2010). To better understand the effect of EAE on neuroactive steroids, we have here assessed the levels of pregnenolon...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2010.06825.x
更新日期：2010-08-01 00:00:00
abstract：:The P2Y11 nucleotide receptor detects high extracellular ATP concentrations. Mutations of the human P2RY11 gene can play a role in brain autoimmune responses, and the P2Y11 receptor alanine-87-threonine (A87T) polymorphism has been suggested to affect immune-system functions. We investigated receptor functionality of ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/jnc.12666
更新日期：2014-05-01 00:00:00
abstract：:As a basis for attempts to define the structures of the proteins within myelin, methods have been developed for their extraction and isolation in solutions of non-denaturing detergents. With use of solutions of deoxycholate or Triton X-100, up to 90% of the protein has been extracted from bovine CNS myelin, along with...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1984.tb02679.x
更新日期：1984-02-01 00:00:00
abstract：:Antibodies raised against the synthetic peptide NH2-QKSDDDYEDYASNKTC-COOH (gamma 2 1-15 Cys), which corresponds to the N-terminal amino acid sequence with a C-terminal cysteine of the human gamma 2 subunit of the gamma-aminobutyric acidA (GABAA) receptor, were used to study the quantitative immunoprecipitation of agon...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1992.tb09278.x
更新日期：1992-01-01 00:00:00
abstract：:Arg0-Met5-enkephalin (Arg0-MEK) was isolated from bovine striatum and purified to homogeneity. The peptide was extracted with trichloroacetic acid, followed by column chromatography successively on Bio-Sil C8, semipreparative HPLC Radial-Pak C18, fast protein liquid chromatography (FPLC) Mono S, HPLC Ultrasphere-ODS, ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1994.63051748.x
更新日期：1994-11-01 00:00:00
abstract：:Properties so far studied of the 125-kDa 14C-arginylated protein from rat brain show remarkable similarities with those of the STOP (stable tubule only polypeptide) protein. On sodium dodecyl sulfate-polyacrylamide gel electrophoresis the 125-kDa 14C-arginylated protein moves to the same position as the STOP protein. ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1994.63062295.x
更新日期：1994-12-01 00:00:00
abstract：:Rat brain succinyl-CoA:3-oxo-acid CoA-transferase (3-oxo-acid CoA-transferase, EC 2.8.3.5), the first committed enzyme in the oxidation of ketone bodies in mitochondria, was purified to apparent homogeneity as judged by polyacrylamide gel electrophoresis. The enzyme has an apparent molecular weight of 90,000 as determ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1982.tb07924.x
更新日期：1982-05-01 00:00:00
abstract：:Three forms of acetylcholinesterase (AChE) have been reported: the 4S, 10S, and 16S forms. It was suggested previously that 16S AChE is characteristic of the end-plate region; subsequently its presence has also been demonstrated in sciatic nerve, vagus nerve, several nerve trunks, cardiac atria, and distal ileum of ra...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1982.tb10882.x
更新日期：1982-01-01 00:00:00
abstract：:Perlecan is a specific proteoglycan that binds to amyloid precursor protein and beta-amyloid peptide, is present within amyloid deposits, and has been implicated in plaque formation. Because plaque formation is associated with local inflammation, we hypothesized that the mechanisms involved in brain inflammatory respo...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1999.0730812.x
更新日期：1999-08-01 00:00:00
abstract：:The NMDA receptor/channel has been shown to be inhibited by ethanol in the clinically relevant range 25-100 mM. We studied heteromeric assemblies (NR1b/NR2) of the NMDA receptor, expressed in oocytes, to address three questions regarding this inhibition, and discovered the following: (1) The inhibition was nearly equi...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1995.65010140.x
更新日期：1995-07-01 00:00:00
abstract：:Japanese encephalitis virus (JEV), a single-stranded RNA (ssRNA) virus, is the leading cause of encephalitis in Asia. Microglial activation is one of the key events in JEV-induced neuroinflammation. Although the various microRNAs (miRNAs) has been shown to regulate microglia activation during pathological conditions i...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/jnc.12609
更新日期：2014-04-01 00:00:00
abstract：:Arachidonic acid (AA) plays an important role as a signaling factor in the CNS. Therefore, exposure to AA may affect cholinergic neurons in the spinal cord. To test this hypothesis, mRNA expression and activity of choline acetyltransferase (ChAT) was measured in cultured spinal cord neurons treated with increasing con...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2004.02535.x
更新日期：2004-08-01 00:00:00
