Abstract：
:The observation that autophosphorylation converts CaM kinase II from the Ca(2+)-dependent form to the Ca(2+)-independent form has led to speculation that the formation of the Ca(2+)-independent form of the enzyme could encode frequency of synaptic usage and serve as a molecular explanation of "memory". In cultured rat hippocampal neurons, glutamate elevated the Ca(2+)-independent activity of CaM kinase II through autophosphorylation, and this response was blocked by an NMDA receptor antagonist, D-2-amino-5-phosphonopentanoate (AP5). In addition, we confirmed that high, but not low frequency stimulation, applied to two groups of CA1 afferents in the rat hippocampus, resulted in LTP induction with concomitant long-lasting increases in Ca(2+)-independent and total activities of CaM kinase II. In experiments with 32P-labeled hippocampal slices, the LTP induction in the CA1 region was associated with increases in autophosphorylation of both alpha and beta subunits of CaM kinase II 1 h after LTP induction. Significant increases in phosphorylation of endogenous CaM kinase II substrates, synapsin I and microtubule-associated protein 2 (MAP2), which are originally located in presynaptic and postsynaptic regions, respectively, were also observed in the same slice. All these changes were prevented when high frequency stimulation was applied in the presence of AP5 or a calmodulin antagonist, calmidazolium. Furthermore, in vitro phosphorylation of the AMPA receptor by CaM kinase II was reported in the postsynaptic density and infusion of the constitutively active CaM kinase II into the hippocampal neurons enhanced kainate-induced response. These results support the idea that CaM kinase II contributes to the induction of hippocampal LTP in both postsynaptic and presynaptic regions through phosphorylation of target proteins such as the AMPA receptor, MAP2 and synapsin I.
journal_name
Neurochem Intjournal_title
Neurochemistry internationalauthors
Fukunaga K,Muller D,Miyamoto Edoi
10.1016/0197-0186(95)00097-6subject
Has Abstractpub_date
1996-04-01 00:00:00pages
343-58issue
4eissn
0197-0186issn
1872-9754pii
0197-0186(95)00097-6journal_volume
28pub_type
杂志文章,评审abstract：:A low density of brain IR2-imidazoline receptive sites has previously been linked to depression. In this study we evaluated brain IR2-binding sites in a rat model of depression, olfactory bulbectomy, and determined the effects of chronic imipramine treatment in vivo on these sites. Compared with sham-operated controls...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(96)00043-5
更新日期：1997-01-01 00:00:00
abstract：:There is a growing body of evidence on the role of nitric oxide (NO) in retinal physiology. Recently, interest has developed in the functional role of an alternative redox form of NO, namely nitroxyl (HNO/NO(-)), because it is formed by a number of diverse biochemical reactions. The aim of the present report was to co...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2007.04.015
更新日期：2007-11-01 00:00:00
abstract：:Cerebral ischemia is one of leading causes of death and long-term disability worldwide. Stem cell-based therapy is promising some valuable strategies for the structural and functional recovery after ischemic insult. The inhibition of phosphodiesterases (PDEs) has wide spectrum neuroprotective properties by stimulating...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2019.104630
更新日期：2020-02-01 00:00:00
abstract：:The effect of the N-methylisoquinolinium ion (NMIQ(+)) on the activity of enzymes related to metabolism of dopamine was studied using a rat clonal pheochromocytoma PC12h cell line. The activities of tyrosine hydroxylase (TH), aromatic l-amino acid decarboxylase (AADC) and monoamine oxidase (MAO) were inhibited by NMIQ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(89)90138-1
更新日期：1989-01-01 00:00:00
abstract：:Unveiling the roles of distinct cell types in brain response to insults is a partially unsolved challenge and a key issue for new neuroreparative approaches. In vivo models are not able to dissect the contribution of residential microglia and infiltrating blood-borne monocytes/macrophages, which are fundamentally undi...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2014.01.008
更新日期：2014-01-01 00:00:00
abstract：:The impact of dietary factors on brain health and vulnerability to disease is increasingly appreciated. The results of epidemiological studies, and intervention trials in animal models suggest that diets rich in phytochemicals can enhance neuroplasticity and resistance to neurodegeneration. Here we describe how intera...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2015.03.009
更新日期：2015-10-01 00:00:00
abstract：:Diabetic neuropathy (DN) is a common form of peripheral neuropathy, yet the mechanisms responsible for chronic pain in this disease are poorly understood. The up-regulation of the expression and function of voltage-gated sodium channel Nav1.7 has been implicated in DN, however, the exact mechanism is unclear. In the p...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2014.05.012
更新日期：2014-09-01 00:00:00
abstract：:The anticonvulsant vigabatrin (VGB; SabrilR) irreversibly inhibits GABA transaminase to increase neural GABA, yet its mechanism of retinal toxicity remains unclear. VGB is suggested to alter several amino acids, including homocarnosine, β-alanine, ornithine, glycine, taurine, and 2-aminoadipic acid (AADA), the latter ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2019.02.015
更新日期：2019-05-01 00:00:00
abstract：:The rat retinal ganglion cell (RGC) line RGC-5 constitutes a widely used model for studying physiological processes in retinal cells. In this paper we investigated the expression of clock and immediately early genes, and calcium mediated responses to physiological stimuli in differentiated and mitotically active RGC-5...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2010.05.013
更新日期：2010-10-01 00:00:00
abstract：:JM-20 (3-ethoxycarbonyl-2-methyl-4-(2-nitrophenyl)-4,11-dihydro-1H-pyrido[2,3-b][1,5]benzodiazepine) is a novel benzodiazepine dihydropyridine hybrid molecule, which has been shown to be a neuroprotective agent in brain disorders involving glutamate receptors. However, the effect of JM-20 on the functionality of the g...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2015.01.006
更新日期：2015-02-01 00:00:00
abstract：:The inflammatory central nervous system response that involves activated microglia and reactive astrocytes may both heal and harm neurons, as inflammatory mediators lead to neuroprotection or excitation at one dose but to injury at a different concentration. To investigate these complex cellular interactions, L-trans-...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2006.06.008
更新日期：2006-12-01 00:00:00
abstract：:Astrocytes can exocytotically release the transmitter glutamate. Increased cytosolic Ca(2+) concentration is necessary and sufficient in this process. The source of Ca(2+) for the Ca(2+)-dependent exocytotic release of glutamate from astrocytes predominately comes from endoplasmic reticulum (ER) stores with contributi...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2008.12.018
更新日期：2009-07-01 00:00:00
abstract：:1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), an inducer of parkinsonism, causes degeneration of nigro-striatal dopaminergic neurons by producing its neurotoxic metabolite, 1-methyl-4-phenylpiridium ion (MPP+), by monoamine oxidase B in glial cells. We used PC12 (rat pheochromocytoma cell line) as a model cell ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(94)90017-5
更新日期：1994-11-01 00:00:00
abstract：:Positron-emitting beta-adrenoceptor ligands for the CNS could allow determination of changes in beta-adrenoceptor availability after treatment of patients with norepinephrine reuptake inhibitors or tricyclic antidepressants, and differential diagnosis between multiple sclerosis and other brain disorders in an early st...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2007.09.009
更新日期：2008-03-01 00:00:00
abstract：:Neuroinflammation is an important factor contributing to cognitive impairment and neurodegenerative diseases, including Alzheimer's disease (AD), Parkinson's disease (PD), Amyotrophic lateral sclerosis (ALS), ischemic injury, and multiple sclerosis (MS). These diseases are characterized by inexorable progressive injur...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2020.104714
更新日期：2020-06-01 00:00:00
abstract：:The neurotoxic beta-amyloid (Abeta) peptide fragment Abeta(25-35) has been suggested to exert its deleterious effects on cells via production of hydrogen peroxide. In human platelets and in the presence of DMSO to prevent production of hydroxyl radicals from hydrogen peroxide, both Abeta(25-35) and hydrogen peroxide w...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(98)00013-8
更新日期：1998-08-01 00:00:00
abstract：:Ras homolog enriched in the brain (Rheb) is a homolog of Ras GTPase that regulates cell growth, proliferation, and cell cycle via mammalian target of rapamycin (mTOR). Recently, it has been confirmed that Rheb activation not only promotes cellular proliferation and differentiation but also enhances cellular apoptosis ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2013.01.025
更新日期：2013-03-01 00:00:00
abstract：:Concanavalin A-binding glycoprotein with 250 K M(r) found in the postsynaptic density (PSD)-enriched preparation (or synaptic cytoskeleton) from rat cerebellum was identified with P400 protein from the physicochemical properties and enrichment in the cerebellum. Proteins homologous to the cerebellar 250 K M(r) protein...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(92)90126-c
更新日期：1992-01-01 00:00:00
abstract：:The increasing incidence of autism suggests a major environmental influence. Epidemiology has implicated many candidates and genetics many susceptibility genes. Gene/environment interactions in autism were analysed using 206 autism susceptibility genes (ASG's) from the Autworks database to interrogate ∼1 million chemi...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2016.10.011
更新日期：2016-10-27 00:00:00
abstract：:Essential metals are crucial for the maintenance of cell homeostasis. Among the 23 elements that have known physiological functions in humans, 12 are metals, including iron (Fe) and manganese (Mn). Nevertheless, excessive exposure to these metals may lead to pathological conditions, including neurodegeneration. Simila...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2012.12.006
更新日期：2013-04-01 00:00:00
abstract：:Neuronal cell death is often triggered by events that involve intracellular increases in Ca2+. Under resting conditions, the intracellular Ca2+ concentration is tightly controlled by a number of extrusion and sequestering mechanisms involving the plasma membrane, mitochondria, and ER. These mechanisms act to prevent a...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2017.03.010
更新日期：2017-10-01 00:00:00
abstract：:The active fraction, isolated and partially purified from the crude venom of the marine snail Conus distans, with a molecular mass of about 25 kDa, inhibits neurotransmitter release in rat hippocampus. This toxin (distans Toxin) inhibits the electrically evoked tritium labelled noradrenaline release from rat hippocamp...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(92)90127-d
更新日期：1992-01-01 00:00:00
abstract：:Human atrial natriuretic peptide (Ser 99-Tyr 126) was rapidly degraded by both choroid plexus and hypothalamic membranes with a complex pattern of cleavage. The use of protease inhibitors allowed a preliminary characterization of the enzymes involved in the hydrolysis of the Ser-Phe and Phe-Arg bonds of iodine-labelle...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(88)90176-3
更新日期：1988-01-01 00:00:00
abstract：:Initial studies demonstrated the loss of lysine and simultaneous appearance of glucitollysine in intracellular proteins following incubation with sugar. For example, when a crude nervous tissue cytoskeletal preparation was incubated in 100 mM glucose for 10 days, > 60% of the lysine residues were modified. Over 20% of...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(92)90144-g
更新日期：1992-09-01 00:00:00
abstract：:Recent in vivo studies have established astrocytes as a major target for locus coeruleus activation (Bekar et al., 2008), renewing interest in cell culture studies on noradrenergic effects on astrocytes in primary cultures and calling for additional information about the expression of adrenoceptor subtypes on differen...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2010.03.019
更新日期：2010-11-01 00:00:00
abstract：:Precise anatomical distribution of 5HT1 binding sites has been investigated in the nuclei raphe dorsalis, raphe centralis and locus caeruleus of the rat brain. An original pattern of distribution was observed in the raphe nuclei, closely correlated to the already known distribution of 5HT containing elements. This pat...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(85)90156-1
更新日期：1985-01-01 00:00:00
abstract：:Diabetic mice exhibit increased mortality and morbidity following stroke. Recent studies from our laboratory have indicated that increased morbidity in diabetic db/db mice relative to their non-diabetic db/+ littermates is associated with increased levels of MMP-9 protease activity, increased blood-brain barrier (BBB)...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2020.104790
更新日期：2020-10-01 00:00:00
abstract：:Pregnenolone sulfate (PREGS) has been shown, either at high nanomolar or at micromolar concentrations, to increase neuronal activity by inhibiting GABAergic and by stimulating glutamatergic neurotransmission. PREGS is also a potent modulator of sigma type 1 (sigma1) receptors. It has been proposed that these actions o...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2007.08.022
更新日期：2008-03-01 00:00:00
abstract：:Individual analysis of synaptic terminals calcium responses, induced by dinucleotides pentaphosphate, Ap(5)A or Gp(5)G, demonstrates the presence of two main groups considering the concentration required for stimulation. The first group corresponds to those responding to Ap(5)A or Gp(5)G at nanomolar concentration, re...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2006.12.007
更新日期：2007-03-01 00:00:00
abstract：INTRODUCTION:Primary pathology underlying Parkinson's disease (PD) is the loss of dopaminergic neurons in the substantia nigra (SN). A variety of genetic and environmental factors underlie this loss of dopaminergic neurons. However, recent studies have highlighted the role of elevated oxidative stress and the pro-infla...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2015.06.004
更新日期：2015-08-01 00:00:00
