Abstract:
:The changes in activity of phospholipid methyltransferase I and [3H]S-adenosyl-L-homocysteine ([3H]SAH) binding were determined in cortical membrane preparations from newborn rats and rats 1, 2, and 8 months old. The activity of phospholipid methyltransferase I and the [3H]SAH binding were significantly greater (respectively, +30 and +40%) in newborn rats than in 1-, 2-, and 8-month-old rats. The methylated products at days 1 and 30 were identical. These changes in methyltransferase activity may be correlated with variations in concentration of S-adenosyl-L-methionine (SAM) and SAH. The endogenous SAM level was higher and the SAH level was lower in newborn compared with adult rats. These data suggested that the processes of methylation were favored in newborn rats. The modifications observed after treatment with L-homocysteine reinforced this hypothesis.
journal_name
J Neurochemjournal_title
Journal of neurochemistryauthors
Gharib A,Rey C,Fonlupt P,Sarda N,Pacheco Hdoi
10.1111/j.1471-4159.1985.tb05470.xsubject
Has Abstractpub_date
1985-07-01 00:00:00pages
32-6issue
1eissn
0022-3042issn
1471-4159journal_volume
45pub_type
杂志文章abstract::It has been reported that caffeine (1.5-30 mg/kg i.p.) as well as specific A1 (DPCPX, 8-cyclopentyl-1,3-dipropylxanthine) receptor antagonists fail to increase extracellular dopamine (DA) in the shell of the nucleus accumbens (NAc). However, it has also been reported that caffeine (10 and 30 mg/kg i.p.) and the A1 ant...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2007.04754.x
更新日期:2007-10-01 00:00:00
abstract::In situ phosphorylation of the presynaptic protein kinase C substrate B-50 was investigated in rat hippocampal slices incubated with the convulsant drug 4-aminopyridine (4-AP). Phosphorylation of B-50 was significantly enhanced 1 min after the addition of 4-AP (100 microM). This increase by 4-AP was concentration depe...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1990.tb02331.x
更新日期:1990-03-01 00:00:00
abstract::Terminally differentiated PC12 cells are a useful neuron-like model for studying programmed cell death in response to nerve growth factor (NGF) deprivation. This in vitro model was used to investigate the mechanism by which cyanide-induced histotoxic hypoxia produces neuronal degeneration. Treatment of undifferentiate...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1996.67031039.x
更新日期:1996-09-01 00:00:00
abstract::The sodium-coupled, hemicholinium-3-sensitive, high-affinity choline transporter (CHT) is responsible for transport of choline into cholinergic nerve terminals from the synaptic cleft following acetylcholine release and hydrolysis. In this study, we address regulation of CHT function by plasma membrane cholesterol. We...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.12490
更新日期:2014-03-01 00:00:00
abstract::In the present study we have used perfused hippocampal slices to examine the hypothesis that nitric oxide (NO) can evoke the release of adenosine from nervous tissue. ATP stores were labeled by incubation with [3H]adenine. Electrical field stimulation at 5 Hz for 5 min evoked the release of 3H-purines, and this was en...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1996.67010186.x
更新日期:1996-07-01 00:00:00
abstract::To examine the effects of glutamatergic neurotransmission on amyloid processing, we stably expressed the metabotropic glutamate receptor subtype 1alpha (mGlu-R1alpha) in HEK 293 cells. Both glutamate and the selective metabotropic agonist 1-amino-1,3-cyclopentanedicarboxylic acid (ACPD) rapidly increased phosphatidyli...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1997.69020704.x
更新日期:1997-08-01 00:00:00
abstract::When synaptosomes from rat brain were incubated with S-adenosylmethionine (10(-3) M), noradrenaline uptake and KCl-stimulated release were decreased. These effects were dependent on MgCl2, temperature, and incubation time. We have investigated the enzymatic methylation of phosphatidylethanolamine to give phosphatidylc...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1982.tb06641.x
更新日期:1982-06-01 00:00:00
abstract::Recently, in the course of our search for the prostacyclin receptor in the brain, we found a novel subtype, designated as IP2, which was finely discriminated by use of the specific ligand (15R)-16-m-tolyl-17,18,19,20-tetranorisocarbacyclin (15R-TIC) and specifically localized in the rostral part of the brain. In the p...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1999.0722583.x
更新日期:1999-06-01 00:00:00
abstract::Kallikrein 6 is a serine protease expressed abundantly in normal adult human and rodent CNS, and therein is regulated by injury. In the case of CNS demyelinating disease, K6 expression in CNS occurs additionally in perivascular and parenchymal inflammatory cells suggesting a role in pathogenesis. Herein we describe tw...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2004.02826.x
更新日期:2004-12-01 00:00:00
abstract::An oligodendroglial specific property, glucocorticoid regulation of glycerol-3-phosphate dehydrogenase (GPDH) levels, was inhibited in C6 rat glioma cells when 4 beta-phorbol 12-myristate 13-acetate (PMA) was added to the cultures. PMA inhibited GPDH induction in both logarithmic- and stationary-phase cells. These eve...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1985.tb05552.x
更新日期:1985-10-01 00:00:00
abstract::We examined the effects of wild-type and mutant atlastin-1 on vesicle transport in the endoplasmic reticulum (ER)-Golgi interface and vesicle budding from ER-derived microsomes using the temperature-sensitive reporter vesicular stomatitis virus glycoprotein (VSV-G), and the ability of purified atlastin-1 to form tubul...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2009.06258.x
更新日期:2009-09-01 00:00:00
abstract::Mouse models of MPTP intoxication have been used extensively to explore the molecular mechanisms of Parkinson's disease. However, these models present some limitations since; (i) Dopaminergic (DA) cell death occurs rapidly in contrast to the presumably slow evolution of the disease process. (ii) Some of the key histol...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2008.05651.x
更新日期:2008-11-01 00:00:00
abstract::Beta-amyloid peptides (A beta) are deposited in an aggregated fibrillar form in both diffuse and senile plaques in the brains of patients with Alzheimer's disease. The neurotoxicity of A beta in cultured neurons is dependent on its aggregation state, but the factors contributing to aggregation and fibril formation are...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1998.70031182.x
更新日期:1998-03-01 00:00:00
abstract::Biogenic amine receptors are involved in the regulation and modulation of various physiological and behavioral processes in both vertebrates and invertebrates. We have cloned a member of this gene family from the CNS of the honeybee, Apis mellifera. The deduced amino acid sequence is homologous to tyramine receptors c...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2000.0740900.x
更新日期:2000-03-01 00:00:00
abstract::Amyotrophic lateral sclerosis (ALS) is a severe neurodegenerative disorder characterized pathologically by motor neuron degeneration and associated with aggregation of RNA-binding proteins. TATA-binding protein-associated factor 15 (TAF15) accumulates as cytoplasmic aggregates in neuronal cells, and clearance of these...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.15182
更新日期:2020-09-11 00:00:00
abstract::We studied the formation of early endosomes in differentiating oligodendrocytes and type-2 astrocytes, which are derived from common precursor cells in rat neonates, using fluorescent analogues of lactosylceramide (LacCer) and sulfatide labeled with 4,4-difluoro-5,7-dimethyl-4-bora-3a,4a-diaza-s-indacene++ +-3-pentano...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1999.0731375.x
更新日期:1999-10-01 00:00:00
abstract::Abstract Dorfin is a RING-finger type ubiquitin ligase for mutant superoxide dismutase 1 (SOD1) that enhances its degradation. Mutant SOD1s cause familial amyotrophic lateral sclerosis (FALS) through the gain of unelucidated toxic properties. We previously showed that the accumulation of mutant SOD1 in the mitochondri...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2003.02289.x
更新日期:2004-04-01 00:00:00
abstract::Both increased gamma-aminobutyric acid (GABA)-ergic and decreased glutamatergic neurotransmission have been suggested relative to the pathophysiology of hepatic encephalopathy. This proposed disturbance in neurotransmitter balance, however, is based mainly on brain tissue analysis. Because the approach of whole tissue...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1992.tb09410.x
更新日期:1992-08-01 00:00:00
abstract::Previous work from this laboratory has shown that in PC12 cells the phosphorylation of a specific soluble protein is decreased by nerve growth factor treatment. The protein, designated Nsp100, and its kinase have been separated and partially purified from PC12 cells. In the present work, the tissue distribution of Nsp...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1985.tb05554.x
更新日期:1985-10-01 00:00:00
abstract::While it has been reported that familial Alzheimer's disease (FAD)-linked mutants of amyloid precursor protein (APP) and presenilin (PS)2 induce neuronal cytotoxicity in a manner sensitive to antioxidant and pertussis toxin (PTX), little of the mechanism for PS1-mediated neuronal cell death has been characterized. We ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.0022-3042.2001.00722.x
更新日期:2002-02-01 00:00:00
abstract::Research on stem cells has developed as one of the most promising areas of neurobiology. In the beginning of the 1990s, neurogenesis in the adult brain was indisputably accepted, eliciting great research efforts. Neural stem cells in the adult mammalian brain are located in the 'neurogenic' areas of the subventricular...
journal_title:Journal of neurochemistry
pub_type: 杂志文章,评审
doi:10.1111/jnc.12084
更新日期:2013-01-01 00:00:00
abstract::Alzheimer's disease (AD) is a neurodegenerative pathology characterized by aggregates of amyloid-β (Aβ) and phosphorylated tau protein, synaptic dysfunction, and spatial memory impairment. The Wnt signaling pathway has several key functions in the adult brain and has been associated with AD, mainly as a neuroprotectiv...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.14278
更新日期:2018-02-01 00:00:00
abstract::Vitamin A metabolite retinoic acid (RA) plays a major role in the aging adult brain plasticity. Conversely, chronic excess of glucocorticoids (GC) elicits some deleterious effects in the hippocampus. We questioned here the involvement of RA and GC in the expression of target proteins in hippocampal neurons. We investi...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.12192
更新日期:2013-05-01 00:00:00
abstract::It is now clearly established that the brain has the capability of synthesizing various biologically active steroids including 17-hydroxypregnenolone (17OH-Delta(5)P), 17-hydroxyprogesterone (17OH-P), dehydroepiandrosterone (DHEA) and androstenedione (Delta(4)). However, the presence, distribution and activity of cyto...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2006.04209.x
更新日期:2007-01-01 00:00:00
abstract::Single-bilayer vesicles of myelin are desirable for studying myelin development and metabolism. Accordingly, our interest was drawn to a procedure for vesiculating myelin (Steck et al., Biochim, Biophys. Acta 509, 397-408, 1978). We used X-ray diffraction analysis to examine these putative vesicle preparations because...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1984.tb05402.x
更新日期:1984-11-01 00:00:00
abstract::Staufen is an RNA-binding protein, first identified for its role in oogenesis and CNS development in Drosophila. Two mammalian homologs of Staufen have been identified and shown to bind double-stranded RNA and tubulin, and to function in the somatodendritic transport of mRNA in neurons. Here, we examined whether Stauf...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2003.01883.x
更新日期:2003-08-01 00:00:00
abstract::Tumor necrosis factor receptor-associated factor 6 (TRAF6) is a member of the TRAF family and an important multifunctional intracellular adaptin of the tumor necrosis factor superfamily and toll/IL-1 receptor (TIR) superfamily. TRAF6 has been studied in several central nervous system diseases, including ischemic strok...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.14075
更新日期:2017-08-01 00:00:00
abstract::Incubation of [2-3H]glycerol-labeled phosphatidylinositol with a crude cytosol fraction of rat brain in the presence of EDTA yielded [3H]lysophosphatidylinositol predominantly without accumulation of labeled monoacylglycerol and diacylglycerol. The pH optimum of this phospholipase A activity was 8.0. The activity for ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1993.tb09829.x
更新日期:1993-11-01 00:00:00
abstract::Excitotoxicity mediated via the (S)-alpha-amino-3-hydroxy-5-methylisoxazole-4-propionate (AMPA) subtype of receptor for l-glutamate contributes to various neuropathologies involving acute brain injury and chronic degenerative disorders. In this study, AMPA-induced neuronal injury and staurosporine (STS)-mediated apopt...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2007.04937.x
更新日期:2007-12-01 00:00:00
abstract::Primary dopaminergic neuronal cultures with increased superoxide dismutase (SOD) activity were established for studying the role of superoxide anion (O2-) in 1-methyl-4-phenylpyridinium (MPP+)-induced degeneration of dopamine (DA) neurons. Mean SOD activity in cultures prepared from transgenic (human) Cu/Zn SOD (hSOD1...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1997.68010058.x
更新日期:1997-01-01 00:00:00