Abstract：
:Interactions between endothelin-1 (ET)-induced phosphoinositide (PI) hydrolysis and agents that increase Ca2+ influx (i.e. A23187 and ionomycin) or induce depolarization (i.e. KCl) were investigated using C6 glioma. A23187 dose-dependently potentiated ET (30 nM)- and ATP (100 microM)-induced [3H]inositol phosphate (IP) accumulation. This potentiation was associated with an increase in the maximal stimulation elicited by both ET and ATP but their EC50 values were unchanged. This effect of A23187 occurred at concentrations that did not affect basal PI turnover; i.e. 10 nM-3 microM. Ionomycin within the range of 1 nM-1 microM also significantly enhanced ET-induced PI breakdown and this effect was associated with an increase of [Ca2+]i. KCl in a concentration-dependent manner (14.7-54.7 mM) markedly inhibited PI breakdown elicited by ET and ATP, but had much less inhibition on basal activity and no effect on A23187- and ionomycin-induced responses. In parallel, KCl added before or after ET, sharply attenuated the increase of ET-induced [Ca2+]i but did not affect basal level or ionomycin-induced [Ca2+]i response. Neither the potentiation by A23187 nor the inhibition by KCl of ET-induced PI turnover was observed in cultured cerebellar astrocytes. Our results suggest that the cell type-specific regulation by Ca2+ ionophores and KCl on ET-induced PI metabolism is closely related to perturbation of [Ca2+]i.
journal_name
Neurochem Intjournal_title
Neurochemistry internationalauthors
Lin WW,Chuang DMdoi
10.1016/0197-0186(92)90161-jsubject
Has Abstractpub_date
1992-09-01 00:00:00pages
293-301issue
2eissn
0197-0186issn
1872-9754journal_volume
21pub_type
杂志文章abstract：:Carotenoids play a pivotal role in prevention of many degenerative diseases mediated by oxidative stress including neurodegenerative diseases like Alzheimer's Disease (AD). The involvement of retinoids in physiology, AD pathology and their therapeutic role in vitro and in vivo has been extensively studied. This review...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2011.04.004
更新日期：2011-10-01 00:00:00
abstract：:Streptozotocin (STZ) is a glucosamine-nitrosourea commonly used to induce long-lasting models of diabetes mellitus and Alzheimer's disease. Direct toxicity of STZ on the pancreas and kidneys has been well characterized, but the acute effect of this compound on brain tissue has received less attention. Herein, we inves...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2019.04.013
更新日期：2019-09-01 00:00:00
abstract：:Tau isoforms constitute a family of microtubule-associated proteins that are mainly expressed in neurons of the central nervous system. They promote the assembly of tubulin monomers into microtubules and modulate their stability, thus playing a key structural role in the distal portion of axons. In Alzheimer's disease...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2011.02.010
更新日期：2011-05-01 00:00:00
abstract：:The discovery of nonsynaptic communication in the 1960s and 1970s was an important milestone in investigating the function of the nervous system, and it revolutionized our view about information transmission between neurons. In addition, nonsynaptic communication has a practical importance not only within the nervous ...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2007.06.001
更新日期：2008-01-01 00:00:00
abstract：:Inositol 1,4,5-trisphosphate (IP(3)) receptors belong to the intracellular calcium channels that release calcium from the intracellular stores after binding IP(3). Three types of IP(3) receptors occurred in a tissue specific manner and different promoters direct their gene expression. Thus, understanding of the transc...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2005.01.003
更新日期：2005-06-01 00:00:00
abstract：:Alzheimer's disease (AD) is the most common form of dementia, accounting for 60-70% of cases in subjects over 65 years of age. Several postulates have been put forward that relate AD neuropathology to intellectual and functional impairment. These range from free-radical-induced damage, through cholinergic dysfunction,...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2004.03.007
更新日期：2004-10-01 00:00:00
abstract：:Intense glucose-based energy metabolism and glutamate synthesis by astrocytes require malate-aspartate-shuttle (MAS) activity to regenerate NAD⁺ from NADH formed during glycolysis, since brain lacks significant glycerophosphate shuttle activity. Aralar is a necessary aspartate/glutamate exchanger for MAS function in b...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2012.09.009
更新日期：2012-12-01 00:00:00
abstract：:GABA release and uptake were examined in Genetic Absence Epilepsy Rats from Strasbourg and in non-epileptic control animals, using crude synaptosomes prepared from the cerebral cortex and thalamus. Uptake of [3H]GABA over time was reduced in thalamic synaptosomes from epileptic rats, compared to controls. The affinity...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(99)00046-7
更新日期：1999-05-01 00:00:00
abstract：:Biochemical abnormalities have been implicated in possible mechanisms underlying the epileptic phenomena. Some of these alterations include changes in the activity of several enzymes present in epileptic tissues. Systemic administration of pilocarpine in rats induces electrographic and behavioral limbic seizures and s...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(95)00153-0
更新日期：1996-05-01 00:00:00
abstract：:Rapid eye movement sleep deprivation is associated with an increase in Na-K ATPase activity. In order to understand the possible biochemical mechanism of this increase, the kinetics of Na-K ATPase was studied. Although the enzyme activity increased after the deprivation, the catalytic efficiency of the enzyme remained...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(99)00121-7
更新日期：2000-03-01 00:00:00
abstract：:Several endogenous brain substances which inhibit [3H]muscimol binding were isolated, and one of them has been purified to apparent homogeneity. The purification involved the extraction of brain tissue with water, followed by several steps of gel filtration column chromatography and high performance liquid chromatogra...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(93)90134-q
更新日期：1993-11-01 00:00:00
abstract：:The effects of thyroid deficiency on the activity of glutamine synthetase (GS) and the number of glial fibrillary acidic (GFA) protein containing cells (the markers for astroglial cells) and on the 2?, 3?-cyclic nucleotide 3?-phosphohydrolase (CNPase) activity (the marker for oligodendroglial cells) were studied in th...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(89)90107-1
更新日期：1989-01-01 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：:Neurons with colocalized cholecystokinin and dopamine are present predominantly in the ventral tegmental area and project mainly to the caudal part of the medial nucleus accumbens. The activity of this dopamine system can be evaluated by means of the intracranial self-stimulation behavior on male Wistar rats having ch...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(87)90074-x
更新日期：1987-01-01 00:00:00
abstract：:Using native plasma membrane vesicle suspensions from the rat cerebral cortex under conditions designed to alter intravesicular [Ca2+], we found that Ca2+ induced 47 +/- 5% more influx of [3H]GABA, [3H]D-aspartate and [3H]glycine at 37 degrees C with half-times 1.7 +/- 0.5, 1.3 +/- 0.4 and 1.3 +/- 0.4 min, respectivel...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(98)00039-4
更新日期：1998-11-01 00:00:00
abstract：:The turnover of phospholipids was compared in peripheral nerves of Trembler dysmelinating mutant and control mice, after intraperitoneal and local injection of labeled ethanolamine. In the mutant sciatic nerve, neurochemical analysis showed that [(14)C]ethanolamine is incorporated into EGP (ethanolamine glycerophospho...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(90)90045-u
更新日期：1990-01-01 00:00:00
abstract：:Poly(ADP-ribose)polymerase-1 (PARP-1) overactivation is a key event in neurodegeneration but the underlying molecular mechanisms wait to be unequivocally identified. Energy failure, transcriptional derangement and deadly nucleus-mitochondria cross-talk have been proposed as mechanisms responsible for PARP-1 neurotoxic...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2006.08.009
更新日期：2007-01-01 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：:Phosphodiesterase 7B (PDE7B) inhibition has been considered as a therapeutic target for the treatment of several neurological disorders. Currently, there are no radio-labeled tracers available to determine receptor occupancy (RO) of this target. Developing such a tracer could greatly facilitate the identification of v...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2020.104735
更新日期：2020-07-01 00:00:00
abstract：:The effects of cholesterol oxides on regular and neuronal PC12 cells were examined. Among the cholesterol oxides tested, 7-beta-, 22(R)- and 25-OH-cholesterol were very toxic to regular PC12 cells such that approximately 80% of cells were killed after a 3 day incubation with 20 micrograms/ml (50 microM) of these agent...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(97)00020-x
更新日期：1997-10-01 00:00:00
abstract：:Increased brain ammonia concentrations are a hallmark feature of several neurological disorders including congenital urea cycle disorders, Reye's syndrome and hepatic encephalopathy (HE) associated with liver failure. Over the last decade, increasing evidence suggests that hyperammonemia leads to alterations in the gl...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/s0197-0186(03)00043-3
更新日期：2003-09-01 00:00:00
abstract：:The results of the present study showed the presence of a high-affinity and saturable binding of [3H]-ketanserin to frontal and parietal brain membranes obtained postmortem from bipolar, depressed, schizophrenic patients and normal controls. The human brain samples (60 frontal cortex and 51 parietal cortex), were dona...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(02)00093-1
更新日期：2003-05-01 00:00:00
abstract：:We assessed the diagnostic accuracy of cerebrospinal fluid (CSF) neurofilament light chain (NFL) protein in the classification of patients with Alzheimer's disease (AD) and cognitively healthy control individuals (HCs) and patients with frontotemporal dementia (FTD) as comparisons. Particularly, we tested the performa...
journal_title：Neurochemistry international
pub_type： 杂志文章,多中心研究
doi：10.1016/j.neuint.2017.05.010
更新日期：2017-09-01 00:00:00
abstract：:Insulin receptors from rat brain regions were studied for insulin binding and receptor associated kinase activity, in alloxan induced short-term and long-term diabetes, and insulin induced hypoglycemia. Insulin receptor activity was assessed by [125I]insulin binding, and basal as well as insulin stimulated kinase acti...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(92)90027-o
更新日期：1992-06-01 00:00:00
abstract：:This study was aimed at examining the effect of tamoxifen, a selective estrogen receptor modulator, on the release of endogenous glutamate in rat cerebral cortex nerve terminals (synaptosomes) and exploring the possible mechanism. Tamoxifen inhibited the release of glutamate that was evoked by the K(+) channel blocker...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2011.11.014
更新日期：2012-01-01 00:00:00
abstract：:The developmental profile of cytosolic sialidase from the nerve ending and the nerve ending-free compartments of rat forebrain was studied from birth to 150 days. Soluble extracts containing the cytosol from nerve endings and nerve ending-free tissue were separately prepared; the recovery of cytosol in the two extract...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(83)90055-4
更新日期：1983-01-01 00:00:00
abstract：:The phenylglycines 3-hydroxyphenylglycine, 4-carboxy-3-hydroxy-phenylglycine (4C3HPG), 4-carboxyphenylglycine (4CPG) and alpha-methyl-4-carboxyphenylglycine (MCPG) were evaluated as putative selective antagonists of metabotropic glutamate receptors on single neurones of the ventrobasal thalamus of rats, with a view to...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(94)90093-0
更新日期：1994-05-01 00:00:00
abstract：:Amyloid deposition within the brains of Alzheimer's Disease patients results in the activation of microglial cells and the induction of a local inflammatory response. The interaction of microglia or monocytes with beta-amyloid (A beta) fibrils elicits the activation a complex tyrosine kinase-based signal transduction ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(01)00052-3
更新日期：2001-11-01 00:00:00
abstract：:The developmental profiles of the neurotransmitter recognition site, labeled by [(3)H]muscimol, and of the two main modulatory sites, labeled by [(3)H]flunitrazepam and [ (35)S ]t- butylbicyclophosphorothionate , respectively, within the GABA(A) receptor complex, have been determined in chick tectal lobes between embr...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(87)90032-5
更新日期：1987-01-01 00:00:00
abstract：:There is experimental evidence from radioligand binding experiments for the existence of strong antagonistic interactions between different subtypes of adenosine and dopamine receptors in the striatum, mainly between adenosine A1 and dopamine D1 and between adenosine A2A and dopamine D2 receptors. These interactions s...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(99)00008-x
更新日期：1999-03-01 00:00:00
