Abstract:
:Choroid plexi from the lateral ventricles of rabbits, cats, and dogfish (Mustelus canis) were used to characterize the prostaglandin (PG) uptake process and to establish its kinetic parameters and substrate specificity. The apparent Kt for PGF2 alpha transport by the rabbit choroid plexus was 20 microM; the Jmax was 27 nmol g-1 min-1. The Ki of inhibition of PGF2 alpha transport by PGE2 was 20 microM; the Jmax of PGF2 alpha transport was unaltered by PGE2. A concentration of p-aminohippuric acid of up to 1 mM did not appreciably affect the Kt or the Jmax of PGF2 alpha transport. The rate of PGF2 alpha accumulation by rabbit choroid plexus was reduced by incubation at 4 degrees C, under anaerobic conditions, in the absence of sodium or in the presence of ouabain, probenecid, or bromcresol green. The choroid plexi of all three species also accumulated thromboxane B2, PGI2, and 6-keto-PGF1 alpha, suggesting that most, if not all, eicosanoids are substrates for this transport system. It is concluded that the choroid plexus transport system satisfies all the criteria of an active, energy-dependent transport system and that this system functions effectively at concentrations of eicosanoids present in the ventricular system under normal or pathological conditions. Hence, this transport system must make an important contribution to the pharmacokinetics of eicosanoids within the brain.
journal_name
J Neurochemjournal_title
Journal of neurochemistryauthors
DiBenedetto FE,Bito LZdoi
10.1111/j.1471-4159.1986.tb08490.xsubject
Has Abstractpub_date
1986-06-01 00:00:00pages
1725-31issue
6eissn
0022-3042issn
1471-4159journal_volume
46pub_type
杂志文章abstract::The effect of tumor necrosis factor-alpha (TNF-alpha) on neuronal viability has been investigated in the SK-N-BE neuroblastoma cell line. These cells undergo differentiation upon chronic treatment with retinoic acid. Exposure of SK-N-BE cells to TNF-alpha produced a proliferative response in undifferentiated cells, wh...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2000.0751172.x
更新日期:2000-09-01 00:00:00
abstract::A major hallmark of mutant superoxide dismutase (SOD1)-linked familial amyotrophic lateral sclerosis is SOD1-immunopositive inclusions found within motor neurons. The mechanism by which SOD1 becomes aggregated, however, remains unclear. In this study, we aimed to investigate the role of nitrosative stress and S-nitros...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.12046
更新日期:2013-01-01 00:00:00
abstract::The autoradiographic method with L-[35S]methionine was used to determine the effects of an n-3 fatty acid deficiency on brain protein synthesis. Brain protein synthesis was significantly increased (from 50 to 150%) in 45 of the 52 brain structures studied in n-3 fatty acid-deficient rats as compared with control anima...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1994.63051995.x
更新日期:1994-11-01 00:00:00
abstract::The 17-kDa endogenous brain protein glia maturation factor (GMF) was transfected into C6 rat glioma cells using a replication-defective human adenovirus vector. The cells overexpressed GMF but did not secrete the protein into the medium. Transfection with GMF led to the activation of the transcription factor nuclear f...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2000.740596.x
更新日期:2000-02-01 00:00:00
abstract::Mechanical strain in neural tissues can lead to the up-regulation and release of multiple cytokines including interleukin 6 (IL-6). In the retina, the mechanosensitive release of ATP can autostimulate P2X7 receptors on both retinal ganglion cell neurons and optic nerve head astrocytes. Here, we asked whether the purin...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.13998
更新日期:2017-05-01 00:00:00
abstract::To determine the role of reduced dopaminergic transmission for declines of forced versus spontaneous behavior, we used a model of Parkinson's disease with progressive degeneration of dopamine (DA) neurons, the MitoPark mouse. Mice were subjected to rotarod tests of motor coordination, and open field and cylinder tests...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.14702
更新日期:2019-07-01 00:00:00
abstract::Pigment epithelium-derived factor (PEDF), purified from human fetal retinal pigment epithelium cell culture medium, was shown to potentiate the differentiation of human Y-79 retinoblastoma cells. To investigate potential neurotrophic effects of PEDF on neurons other than those of retinal derivation, we used cultures o...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1995.64062509.x
更新日期:1995-06-01 00:00:00
abstract::We have examined the ability of KW-6002, an adenosine A2a antagonist, to modulate the dyskinetic effects of L-DOPA in 6-hydroxydopamine-lesioned rats. In animals rendered dyskinetic by a previous course of L-DOPA treatment, KW-6002 did not elicit any abnormal involuntary movements on its own, but failed to reduce the ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2003.01632.x
更新日期:2003-03-01 00:00:00
abstract::A method has been developed for the simultaneous in vivo measurement of local rates for methionine incorporation into cerebral protein in the rat. It is based on the use of L-[35S]methionine as a tracer for reflecting the bidirectional exchange of methionine between plasma and brain and its incorporation into cerebral...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1987.tb04101.x
更新日期:1987-02-01 00:00:00
abstract::The cleavage-product of amyloid precursor protein (APP) constitutes the core component of plaques found in the brains of Alzheimer's disease (AD) patients. APP is ubiquitously expressed and its precise physiological functions remain unclear. This protein has been proposed to regulate synaptic function and processes un...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2007.04672.x
更新日期:2007-09-01 00:00:00
abstract::The glial glutamate transporter EAAT2 (excitatory amino acid transporter 2) is the major mediator of glutamate clearance that terminates glutamate-mediated neurotransmission. Loss of EAAT2 and associated glutamate uptake function has been reported in the brains of patients with Alzheimer's disease (AD). We previously ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2010.06661.x
更新日期:2010-05-01 00:00:00
abstract::Proteolytic fragmentation of [3H]diisopropylfluorophosphate-labelled catalytic subunits of different molecular forms of acetylcholinesterase demonstrates that all forms extracted from the electric organ from Torpedo marmorata are true acetylcholinesterases. This is supported by immunochemical results showing that the ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1987.tb02887.x
更新日期:1987-08-01 00:00:00
abstract::The rapid bidirectional transport of dopamine beta-hydroxylase (DBH) in adrenergic axons provides a means of analyzing the life cycle of adrenergic storage vesicles. We compared the physical characteristics of DBH-containing particles traveling to or returning from the terminal varicosities of ligated rat sciatic nerv...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1989.tb07379.x
更新日期:1989-08-01 00:00:00
abstract::The NMDA receptor has recently been found to be phosphorylated on tyrosine. To assess the possible connection between tyrosine phosphorylation of the NMDA receptor and signaling pathways in the postsynaptic cell, we have investigated the relationship between tyrosine phosphorylation and the binding of NMDA receptor su...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1997.69020623.x
更新日期:1997-08-01 00:00:00
abstract::The neural cell adhesion molecule L1 is a phosphorylated, integral membrane glycoprotein that is recovered from adult mouse brain tissue by immunoaffinity chromatography as a set of polypeptides with apparent molecular masses of 200, 180, 140, and 80 kilodaltons (L1-200, L1-180, L1-140, and L1-80, respectively). It ha...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1988.tb02941.x
更新日期:1988-02-01 00:00:00
abstract::Evidence of a link between aluminium and Alzheimer's disease, parkinsonism-dementia of Guam, and dialysis encephalopathy raises questions regarding the role of this element in the pathogenesis of these conditions. Therefore, we have investigated the use of gallium-67 (67Ga) as a marker for brain uptake of aluminium. T...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1990.tb08846.x
更新日期:1990-07-01 00:00:00
abstract::In contrast to brain, the sciatic nerve concentration of vitamin E in rats increased rapidly during the postnatal period (approximately fivefold between days 1 and 8), then decreased dramatically (about twofold between days 8 and 30), and further decreased slowly between days 30 and 60 and remained constant up to 2 ye...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1990.tb04917.x
更新日期:1990-06-01 00:00:00
abstract::Studies in continuously cultured cells have established that familial Alzheimer's disease (FAD) mutant presenilin 1 (PS1) delays exit of the amyloid precursor protein (APP) from the trans-Golgi network (TGN). Here we report the first description of PS1-regulated APP trafficking in cerebral neurons in culture and in vi...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2007.04587.x
更新日期:2007-08-01 00:00:00
abstract::The endogenous cannabinoid anandamide has been reported to produce well-defined behavioral tolerance, but studies on the possible mechanisms underlying this process are few and often contradictory. The present study was designed to survey the cellular events involved in anandamide tolerance, in terms of the effects on...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2000.0752478.x
更新日期:2000-12-01 00:00:00
abstract::Gliomas are the most common primary malignant brain tumor in adults, but current treatment for glioblastoma multiforme (GBM) is insufficient. Even though glucose is the primary energetic substrate of glioma cells, they are capable of using fatty acids to generate energy. Fatty acid oxidation (FAO) in mitochondria requ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.15124
更新日期:2020-07-12 00:00:00
abstract::The physiological function of the cellular prion protein (PrP(c)) is unclear. PrP(c) associates with lipid rafts, highly glycolipid-rich membrane domains containing a large variety of signaling molecules, e.g., sphingolipids (SL). In this study, we investigated possible connections between PrP(c) and sphingolipid-asso...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2008.05498.x
更新日期:2008-08-01 00:00:00
abstract::The transcription factor Nurr1 is essential for the generation of midbrain dopaminergic neurons (mDA). Only a few Nurr1-regulated genes have so far been identified and it remains unclear how Nurr1 influences the development and function of dopaminergic neurons. To identify novel Nurr1 target genes we have used genome-...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2007.04494.x
更新日期:2007-07-01 00:00:00
abstract::MAP 1B is a microtubule-associated phosphoprotein that is expressed early in neurons and plays a role in axon growth. MAP 1B has two types of phospho-isoforms, one of which is developmentally down-regulated after neuronal maturation and one of which persists into adulthood. Because phosphorylation regulates MAP 1B bin...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1997.69041417.x
更新日期:1997-10-01 00:00:00
abstract::Rat-1 fibroblasts were transduced to express Drosophila choline acetyltransferase. The presence of an active enzyme in these cells (Rat-1/dChAT) was confirmed using various methods. Rat-1/dChAT fibroblasts released acetylcholine (ACh) into the culture medium. Moreover, intra- and extracellular levels of ACh could be i...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1992.tb10942.x
更新日期:1992-06-01 00:00:00
abstract::Histamine stimulated the enzymatic synthesis of phosphatidylcholine from phosphatidylethanolamine in crude synaptic membranes of rat brain containing the methyl donor S-adenosyl-L-methionine (SAM). In the presence of, but not in the absence of SAM, histamine increased cyclic AMP accumulation at the concentrations that...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1988.tb03043.x
更新日期:1988-05-01 00:00:00
abstract::Monoamine oxidases (MAOs) are mitochondrial enzymes which control the levels of neurotransmitters in the brain and dietary amines in peripheral tissues via oxidative deamination. MAO has also been implicated in cell signalling. In this study, we describe the MAO-A isoform as functional in apoptosis induced by staurosp...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2007.04921.x
更新日期:2007-12-01 00:00:00
abstract::The regulation of glial and neuronal Na+-dependent glutamate/aspartate transporters is of interest because abnormal glutamate transport may be responsible for certain neurological diseases. Because expression of the Wnt-1 protooncogene results in induction of the glial-type glutamate transporter GLAST in PC12 neuron-l...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1999.0731012.x
更新日期:1999-09-01 00:00:00
abstract::Little is known about the coupling of serotonin 5-HT1B receptors to cellular signals other than cyclic AMP. In the present studies, the activation by 5-HT1B receptors of p70 S6 kinase and the mitogen-activated protein kinase (MAP kinase) ERK-2 was investigated. Studies were performed by using both nontransfected Chine...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1998.71031059.x
更新日期:1998-09-01 00:00:00
abstract::The extension of microglial processes toward injured sites in the brain is triggered by the stimulation of the purinergic receptor P2Y(12) by extracellular ATP. We recently showed that P2Y(12) stimulation by ATP induces microglial process extension in collagen gels. In the present study, we found that a P2Y(12) agonis...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2012.07693.x
更新日期:2012-04-01 00:00:00
abstract::The presence of insulin receptors was investigated in human Y-79 retinoblastoma cells grown in suspension culture. The binding of [125I] insulin to these cells was time, temperature, and pH dependent, was competed for by insulin and proinsulin but not other peptides, and was inhibited by antibodies against the insulin...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1986.tb02832.x
更新日期:1986-07-01 00:00:00