Abstract：
:The labelling of gangliosides and sialoglycoproteins (SGP) after injecting intraocularly 30 ?Ci of [(3)H]ManNAc was studied in chickens that had previously received, also intraocularly, 30 or 70 nmol of monensin in 10 ?l of ethanol or 24 ?g of colchicine in 10 ?l saline. Controls received ethanol or saline only. Colchicine at doses that almost completely block the axonal transport to the optic tectum does not affect the labelling of those sialocompounds. The translocation of gangliosides and SGP, measured as a percentage of accessibility to the sialidase was inhibited by colchicine, but this effect was different for gangliosides and for SGP. In contrast, monensin, also at doses that block axonal transport, inhibits the synthesis and the translocation of gangliosides and SGP. It also modifies the labelling pattern of retinal gangliosides, which with respect to the normal pattern shows an increase in the relative labelling of GM(3), GD(3), GM(1) and probably GD(1b) and a decrease in GD(1a) and GT(1b). The activity of UDP-GalNAc: GM(3), GalNAc transferase (EC 2.4.1.79) of retina membranes of chickens that received an intraocular injection of monensin 4 h before being sacrificed showed a dose-dependent decrease with respect to the controls. In experiments in vitro monensin at a concentration of 3 mM failed to inhibit this activity.
journal_name
Neurochem Intjournal_title
Neurochemistry internationalauthors
Nores GA,Caputto Rdoi
10.1016/0197-0186(86)90183-xsubject
Has Abstractpub_date
1986-01-01 00:00:00pages
501-6issue
4eissn
0197-0186issn
1872-9754pii
0197-0186(86)90183-Xjournal_volume
8pub_type
杂志文章abstract：:NMDA receptors are essential for neurotransmission and key mediators of synaptic signaling, but they can also trigger deleterious degenerative processes that lead to cell death. Growing evidence suggests that selective blockade of the heterogeneous subunits that comprise the NMDA receptor may enable better control of ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2012.02.007
更新日期：2012-04-01 00:00:00
abstract：:Astroglial cells have a variety of roles in the central nervous system (CNS), providing a homeostasis for the proper functioning of neuronal cells. The classical view concerning the supportive role of astroglia towards associated neurons has to be extended. A great number of new evidences suggest that astrocytes inter...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2009.01.025
更新日期：2009-07-01 00:00:00
abstract：:TAR DNA-binding protein 43 (TDP-43) is a major pathological protein of ubiquitinated inclusions in motor neurons of sporadic amyotrophic lateral sclerosis (ALS). TDP-43 is ubiquitously expressed and the majority of TDP-43 is normally localized to the nucleus. In motor neurons of patients with ALS, TDP-43 is not locali...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2018.12.009
更新日期：2019-03-01 00:00:00
abstract：:We have used an in vitro system to monitor the effects of high levels of ammonia and ethanol on glial cells. Nuclei were isolated and the protein profiles examined by two-dimensional gel electrophoresis. Acute exposure of rat astrocyte cell cultures to ammonia or ethanol resulted in changes in cellular morphology and ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(88)90037-x
更新日期：1988-01-01 00:00:00
abstract：:The saturable and specific high-affinity uptake of [(3)H]serotonin ([(3)H]5HT) (5 x 10(?8) M) was studied in slices from the hippocampus, parietal cortex, septum-preoptic area, and hypothalamus of male 2, 6, 12 and 24-32 month old C57BL/6N mice. Hippocampal [(3)H]5-HT uptake showed a significant biphasic relationship ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(83)90006-2
更新日期：1983-01-01 00:00:00
abstract：:Immunoglobulin G (IgG) antibodies against myelin oligodendrocyte glycoprotein (MOG) are detected in the serum of some patients with demyelinating diseases. These patients are known to show repeated clinical episodes of inflammatory demyelinating attacks in the central nervous system. Although the associated pathogenic...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2018.10.016
更新日期：2019-11-01 00:00:00
abstract：:The oligosaccharides of rod and cone membranes were investigated with the aid of fluorescence and (125)I-labeled lectins. Additionally, the ability of lectins to cause agglutination in ROS suspensions was used as an index for the presence of the corresponding lectin receptors. The specificities of lectin-ligand intera...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(80)90065-0
更新日期：1980-01-01 00:00:00
abstract：:Adenosine exerts two parallel modulatory roles in the CNS, acting as a homeostatic modulator and also as a neuromodulator at the synaptic level. We will present evidence to suggest that these two different modulatory roles are fulfilled by extracellular adenosine originated from different metabolic sources, and involv...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/s0197-0186(00)00034-6
更新日期：2001-02-01 00:00:00
abstract：BACKGROUND:The major hallmark of Alzheimer's disease (AD) is the formation of amyloid aggregates, which are formed due to improper folding of proteins leading to the aggregation of amyloid beta (Aβ) 42 peptide. Inhibition of Aβ 42 aggregation using a drug such as carbenoxolone (Cbx), which has already been stated as ne...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2017.06.011
更新日期：2017-09-01 00:00:00
abstract：:Previously we have demonstrated the presence of presynaptic nicotinic acetylcholine receptors on the terminals of myenteric neurons in Auerbach's plexus of guinea-pig ileum. During these studies we observed, that the presence of hemicholinium-3, an inhibitor of the high affinity choline uptake significantly influences...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2006.03.001
更新日期：2006-09-01 00:00:00
abstract：:Tissue-type plasminogen activator (tPA) plays an important role in synaptic plasticity and contributes to several brain functions such as memory, learning, and behaviours. Although a number of studies have demonstrated that various kinds of stimuli such as electrophysiological stimulation, excitotoxic injury, and stre...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2010.10.007
更新日期：2011-01-01 00:00:00
abstract：:Ligand-induced changes in the conformation of extracellular loop (EL) 2 in the rat (r) dopamine transporter (DAT) were examined using limited proteolysis with endoproteinase Asp-N and detection of cleavage products by epitope-specific immunoblotting. The principle N-terminal fragment produced by Asp-N was a 19kDa pept...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2013.11.003
更新日期：2014-07-01 00:00:00
abstract：:An investigation was made into the effects of hyperammonemia on the metabolism of brain serotonin (5-HT). The animal model used was the sparse fur (spf) mouse, which possesses an inborn error of the urea cycle, i.e. an abnormal form of ornithine transcarbamylase. Several indoles were measured in brain and plasma using...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(85)90019-1
更新日期：1985-01-01 00:00:00
abstract：:We have found that the platelet activating factor antagonist (BN52021) is an effective blocker of the glycine (Gly) receptor-mediated responses in the hippocampal pyramidal neurons of rat. Using the whole-cell voltage clamp and concentration clamp recording techniques, we investigated the mechanism underlying the inhi...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(01)00109-7
更新日期：2002-06-01 00:00:00
abstract：:Human neuroblastoma GOTO cell lines were established that stably express recombinant human lysosomal protective protein/cathepsin A (PPCA) cDNA by transfection. Intracellular cathepsin A (acid serine carboxypeptidase) activity increased four-fold compared with in those of the parent and mock-transfected cell lines. Th...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2003.07.001
更新日期：2004-05-01 00:00:00
abstract：:Nucleotides can be released as signaling substances in the nervous system from both neural and glial cells. Their function is terminated by ecto-nucleotidases and sequential extracellular metabolism to the nucleoside. Recently considerable progress has been made in unraveling the molecular structure of an ecto-ATPase ...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/s0197-0186(97)00126-5
更新日期：1998-05-01 00:00:00
abstract：:Although ischemic preconditioning (IP) can provide powerful protection on brain against ischemic insult, it is rarely used in clinic to prevent the occurrence of ischemic stroke because of safety concerns. It is therefore necessary to seek the safer stimuli to initiate pharmacological preconditioning. Our previous wor...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2012.11.007
更新日期：2013-01-01 00:00:00
abstract：:Alzheimer's disease as well as prion-related encephalopathies are neurodegenerative disorders of the central nervous system, which cause mental deterioration and progressive dementia. Both pathologies appear to be primarily associated with the pathological accumulation and deposit of β-amyloid or prion peptides in the...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2011.01.019
更新日期：2011-05-01 00:00:00
abstract：:Depression is characterized by sadness, purposelessness, irritability, and impaired body functions. Depression causes severe symptoms for several weeks, and dysthymia, which may cause chronic, low-grade symptoms. Treatment of depression involves psychotherapy, medications, or phototherapy. Clinical and experimental ev...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2012.12.014
更新日期：2013-02-01 00:00:00
abstract：:The effects of the peroxovanadium complex potassium bisperoxo(1,10-phenanthroline)-oxovanadate (bpV[phen]) have been studied on dopamine (DA) exocytosis in PC12 cells. Bisperoxo(1,10-phenanthroline)-oxovanadate does not elicit dopamine secretion in PC12 cells. However, treatment of PC12 cells with 30 microM bpV[phen] ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(01)00093-6
更新日期：2002-04-01 00:00:00
abstract：:Malfunctioning of high-affinity glutamate transporters is believed to contribute to the accumulation of toxic concentrations of glutamate and, thus, trigger the cellular mechanisms of neurodegeneration. Emerging data point to the presence of excitotoxic component in Alzheimer's disease (AD) and aberrant expression of ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(03)00023-8
更新日期：2003-09-01 00:00:00
abstract：:Acetylcholine is an excitatory neurotransmitter in the central nervous system of insects and the nicotinic acetylcholine receptor (nAChR) is a target for neonicotinoid insecticides. Functional insect nAChRs are difficult to express in host cells, and hence difficult to study. In mammals, acetylcholine and nicotine evo...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2017.12.012
更新日期：2018-03-01 00:00:00
abstract：:Parkinson's disease (PD), a progressive neurodegenerative disorder, has long been associated with mitochondrial dysfunction in both sporadic and familial forms of the disease. Mitochondria are crucial for maintaining cellular homeostasis, and their dysfunction is detrimental to dopaminergic neurons. These neurons are ...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2019.104495
更新日期：2019-10-01 00:00:00
abstract：:The present experiments investigated the effect of a neurotoxin purified from the venom of the spider Phoneutria nigriventer. This toxic component, P. nigriventer toxin 3-6 (PnTx3-6), abolished Ca(2+)-dependent glutamate release with an IC(50) of 74.4nM but did not alter Ca(2+)-independent secretion of glutamate when ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(02)00130-4
更新日期：2003-03-01 00:00:00
abstract：:Dipyridamole (DPR) and nitrobenzylthioinosine (NBI) inhibition of adenosine accumulation in synaptoneurosomes derived from rat cerebral cortex, rat cerebellum, guinea pig cerebral cortex and guinea pig cerebellum was investigated. The inhibition of adenosine accumulation by NBI was observed to be distinctly biphasic i...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(87)90055-6
更新日期：1987-01-01 00:00:00
abstract：:While studies with [(3)H]D-aspartate ([(3)H]d-Asp) illustrate specific interactions with excitatory amino acid transporters (EAATs), new insights into the pharmacological characteristics and localization of specific EAAT subtypes depend upon the availability of novel ligands. One such ligand is [(3)H]-(2S,4R)-4-methyl...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2007.05.011
更新日期：2007-12-01 00:00:00
abstract：:Thromboxane A2(TxA2) is a potent vasoconstrictor associated with cerebrovascular disease and is thought to be synthesized within tissues of the brain. In order to determine the cellular sources of TxA2 in the central nervous system (CNS), we measured the release of the stable metabolite TxB2 in cultures of mixed or hi...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(95)00140-9
更新日期：1996-07-01 00:00:00
abstract：:Neuroserpin, the major inhibitor of tissue plasminogen activator (tPA) in brain, has been shown to be up-regulated in Alzheimer's disease (AD). Inhibition of tPA activity leads to reduced brain levels of plasmin, one of the main enzymes responsible for the degradation and clearance of amyloid-beta and its plaques from...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2013.08.010
更新日期：2013-11-01 00:00:00
abstract：:Posttranslational processing of peptide-precursors is nowadays believed to play an important role in the functioning of neurons and endocrine cells. Both proenkephalins and chromogranins/secretogranins are considered as precursor molecules in these tissues, resulting in posttranslationally formed degradation products ...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/0197-0186(93)90016-x
更新日期：1993-04-01 00:00:00
abstract：:Acyl-CoA synthetase activity was investigated in membrane fractions from normal and Trembler mouse sciatic nerves. Stearoyl-CoA synthesis in the Trembler assays was always about twice that observed in the control experiments under various conditions of CoA and ATP concentrations. In experiments using varying concentra...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(85)90035-x
更新日期：1985-01-01 00:00:00
