Abstract:
:Soluble amyloid beta protein (Abeta) oligomers have been considered recently to be responsible for the cognitive dysfunction that sets in prior to senile plaque formation in the Alzheimer's disease (AD) brain. By using the newly prepared antibody against oligomer Abeta, rather than fibrillar or monomer Abeta, we observed that oligomer Abeta in AD brains was localized as clusters ofdot-likeimmunostains in the neurons in a manner different from that in senile plaques. The relationship of oligomer Abeta with synaptophysin, a synaptic molecular marker, was examined because oligomer Abeta is widely believed to be related to synaptic failure. We observed that immunostainings for synaptophysin were absent near neurons bearing clusters of oligomer Abeta. The present study provides morphological evidence to support the idea that accumulated oligomer Abeta, but not fibrillar Abeta, is closely associated with synaptic failure, which is the major cause of cognitive dysfunction.
journal_name
J Neurosci Resjournal_title
Journal of neuroscience researchauthors
Ishibashi K,Tomiyama T,Nishitsuji K,Hara M,Mori Hdoi
10.1002/jnr.20952subject
Has Abstractpub_date
2006-08-15 00:00:00pages
632-6issue
3eissn
0360-4012issn
1097-4547journal_volume
84pub_type
杂志文章abstract::In recent years, several novel types of disorders have been characterized, including what have been termed polyalanine diseases, in which patients have expanded triplet repeats in specific genes, resulting in the translation of aberrantly elongated polyalanine stretches. In this study, we showed that yellow fluorescen...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21619
更新日期:2008-05-15 00:00:00
abstract::Statins are potent cholesterol biosynthesis inhibitors that exert protective effects in humans and in experimental models of stroke. The mechanisms involved in these protective actions are not completely understood. This study evaluates whether atorvastatin (ATV) treatment affects the GluN1 and GluN2B subunits of the ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.23426
更新日期:2014-11-01 00:00:00
abstract::Embryonic central nervous system neuroepithelial cells are a transient population of cells that give rise to neuronal and glial progenitors. In the E12-E16 embryonic rat spinal neural tube we have identified neuroepithelial cells as radially oriented cells expressing the GD3 ganglioside as recognized by the monoclonal...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4547(19960901)45:5<549::AID-JNR
更新日期:1996-09-01 00:00:00
abstract::Recent studies have indicated that embryonic stem cells (ESCs) can be a source for the replacement of spiral ganglion neurons (SGNs), auditory primary neurons, and neurite projections from ESC-derived neurons to auditory sensory epithelia. However, the potential of ESC-derived neurons for synapse formation with audito...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21754
更新日期:2008-11-01 00:00:00
abstract::The rationale for designing and synthesizing 24 different peptide analogs and subpeptides of residues 69-84 of guinea pig myelin basic protein is presented. The encephalitogenic potential of 19 of these peptides in Lewis rats is also given. ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490180130
更新日期:1987-01-01 00:00:00
abstract::F5 was identified originally as an interleukin-2-regulated gene in L2 cells, a murine helper T-lymphocyte clone. In adult mouse, F5 mRNA was expressed at a modest level in lymphoid tissues, at a high level in mature neurons in the nervous system, but not in other tissues. Although the F5 sequence is highly conserved o...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490360308
更新日期:1993-10-15 00:00:00
abstract::HEPES inhibited the taurine uptake in glial cells. A different kind of inhibition was observed when HEPES was present in the culture medium or in the incubation medium used for the taurine-uptake measurement. As an example of a possible interference of HEPES in pharmacological experiments, we have studied the effect o...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490230111
更新日期:1989-05-01 00:00:00
abstract::N-cadherin and beta-catenin are involved in cell adhesion and cell cycle in tumor cells and neural crest. Both are expressed at key stages of Schwann cell (SC) development, but little is known about their function in the SC lineage. We studied the role of these molecules in adult rat derived SC-embryonic dorsal root g...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21528
更新日期:2008-03-01 00:00:00
abstract::Astrocytes purified from the neonatal rat brain were cultured for up to 3 weeks prior to being treated with agents that can induce reactive changes in astrocytes. These agents included dibutyryl cAMP, interleukin-1 beta, and macrophage conditioned media. After treating astrocytes for 3 days, the agents were removed an...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490380108
更新日期:1994-05-01 00:00:00
abstract::The close homologue of L1 (CHL1) is a member of the L1 family of cell recognition molecules. The protein is expressed by a variety of nerve cell types and subpopulations of glial cells in vivo and promotes elongation of neurites and survival of nerve cells in vitro. Here we demonstrate that glial cells up-regulate exp...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.10533
更新日期:2003-03-15 00:00:00
abstract::A sensitive and convenient method of endopeptidase assay using as substrate globin modified with pyridoxal-5-phosphate was used for determination of acid proteinases in bovine hypothalamus separated by isoelectric focusing. The soluble protein fraction of hypothalamus upon elution from Sephadex gave five peaks of prot...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490040505
更新日期:1979-01-01 00:00:00
abstract::Although reactive oxygen species (ROS) have been implicated in ischemic preconditioning (IPC)-induced neuronal protection, several key questions concerning ROS remain to be elucidated. The purpose of this study is to obtain direct evidence for the formation of specific ROS species generated by IPC, and to determine th...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.20402
更新日期:2005-03-15 00:00:00
abstract::The termination of chemical neurotransmission in the CNS involves the rapid removal of neurotransmitter from synapses by specific transport systems. Such mechanism operates for the three major amino acid neurotransmitters glutamate, gamma-aminobutyric acid (GABA) and glycine. To date, five different high-affinity Na(+...
journal_title:Journal of neuroscience research
pub_type: 杂志文章,评审
doi:10.1002/jnr.1039
更新日期:2001-03-15 00:00:00
abstract::The mechanisms underlying brain seizure tolerance, a phenomenon in which brief periods of seizures protect brain against the lethal effects of subsequent sustained seizures, are poorly understood. Because brain seizure tolerance and brain ischemia tolerance likely share certain common mechanisms, the recent evidence t...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.20566
更新日期:2005-08-15 00:00:00
abstract::Immunocytochemical studies indicated that Purkinje cells cultured from chick embryonic cerebellum (embryonic day 8) strongly express a glutamate transporter EAAT2 cloned from human brain (GLT-1 in rat brain). At both 7 days and 14 days in culture, Purkinje neurons accumulated 1 microM [3H]L-glutamate via a potent "hig...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4547(19981201)54:5<595::AID-JNR
更新日期:1998-12-01 00:00:00
abstract::Scar formation after injury of the brain or spinal cord is a common event. While glial scar formation by astrocytes has been extensively studied, much less is known about the fibrotic scar, in particular after stroke. Platelet-derived growth factor receptor ß-expressing (PDGFRß+ ) pericytes have been suggested as a so...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.24557
更新日期:2020-05-01 00:00:00
abstract::Neuronal ceroid lipofuscinoses (NCLs) are a group of hereditary childhood diseases characterized mainly by lipopigment accumulation and a multisystemic pattern of symptoms including mental retardation, seizures, motor impairment, and blindness. The mnd mouse, carrying a mutation in the Cln8 gene, has been proposed as ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.22831
更新日期:2012-06-01 00:00:00
abstract::Increasing evidence suggests that the regulation of neuronal cell death is complex. In this study we compared the neurotoxic effects of tumor necrosis factor-alpha (TNFalpha), nitric oxide, and thrombin on primary rat cortical cell cultures and the neuronal PC12 cell line. Release of lactate dehydrogenase (LDH) and th...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.1119
更新日期:2001-06-15 00:00:00
abstract::Plexiform layer synaptic and photoreceptor cell components were investigated in retinas of Royal College of Surgeons (RCS) dystrophic rats transplanted with normal retinal pigment epithelial (RPE) cells by immunocytochemistry using previously characterized monoclonal antibodies. In retinas of normal adult rats and RPE...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490360408
更新日期:1993-11-01 00:00:00
abstract::We have previously shown that Na+, K(+)-ATPase activity in hypothalamus is increased after administration of an acute dose of desipramine, a noradrenaline uptake inhibitor (Viola et al., Cell Molec Neurobiol 9:263-271, 1989). In this report the same treatment (10 mg per kg) was applied to evaluate 3H-ouabain binding i...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(sici)1097-4547(19970101)47:1<77::aid-jnr8
更新日期:1997-01-01 00:00:00
abstract::Previously, we showed that in rat cortical neurons, chronic donepezil treatment (10 microM, 4 days) up-regulates nicotinic receptors (nAChR) and makes neurons more sensitive to the neuroprotective effect of donepezil. Here we examined the mechanism of donepezil-induced neuroprotection in neurons chronically treated wi...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21798
更新日期:2008-12-01 00:00:00
abstract::Sulfoglucuronosyl paragloboside (SGPG) is a member of the sulfated glucuronic acid-containing glycolipid (SGGL) family found primarily in peripheral nerves. These glycolipids contain the HNK-1 carbohydrate epitope and are recognized by monoclonal IgM from patients with chronic demyelinating neuropathy and paraproteine...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4547(19960615)44:6<586::AID-JNR
更新日期:1996-06-15 00:00:00
abstract::The Shaw subfamily of potassium channel genes, including Kv3.1, are highly expressed within the auditory nuclei of the brainstem, where they have been implicated in the characteristic response properties of particular types of neurons. Potassium currents carried by Kv3.1 are voltage-dependent, have a high activation t...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(sici)1097-4547(19991215)58:6<791::aid-jnr
更新日期:1999-12-15 00:00:00
abstract::Chronic alcohol consumption has adverse effects on the central nervous system, affecting some hippocampal and hypothalamic functions. In this study we tempted to demonstrate that some of these modifications could involve impairment of neurotrophic factors. Three experimental groups of male Sprague Dawley rats were stu...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/1097-4547(20010115)63:2<200::AID-JNR1012>3
更新日期:2001-01-15 00:00:00
abstract::This study examined the growth of basal plate explants from 40-hr chick embryos containing the trigeminal motor nucleus in the presence of target muscle-conditioned medium (MCM) from day-4, day-10, and day-18 embryos. We had previously found that MCM derived from the 4-day target tissue enhanced neurite outgrowth from...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490190109
更新日期:1988-01-01 00:00:00
abstract::In this Mini-Review we present a new hypothesis in support of the neurodegenerative theory as a mechanism for the pathogenesis of multiple sclerosis (MS). The pathogenesis of MS results from changes in two distinct CNS compartments. These are the "myelin" and "nonmyelin" compartments. The myelin compartment is where p...
journal_title:Journal of neuroscience research
pub_type: 杂志文章,评审
doi:10.1002/jnr.20420
更新日期:2005-05-01 00:00:00
abstract::Metabotropic glutamate receptors (mGluRs) and calcium receptors (CaR) are closely related G protein-coupled receptors (GPCRs). The similar structural and functional properties of mGluRs and CaRs include conserved amino acid residues involved in glutamate binding in mGluRs and Ca2+ binding in the CaR. Furthermore, rece...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.10853
更新日期:2004-02-15 00:00:00
abstract::The immunohistochemical distribution of microtubule-associated protein 2 (MAP2), being normally restricted to nerve cell bodies and dendrites, became altered in rat dorsal root ganglia and spinal cord neurons in cultures infected with rhesus rotavirus. MAP2 appeared in axons of both sources of neurons as displayed wit...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490360207
更新日期:1993-10-01 00:00:00
abstract::As aging population is increasing, new methodologies to apprehend and enhance the mechanisms related to optimal brain function in advancing age become urgent. This review describes how the combined use of non-invasive brain stimulation (NIBS) with functional magnetic resonance imaging (fMRI) provides novel experimenta...
journal_title:Journal of neuroscience research
pub_type: 杂志文章,评审
doi:10.1002/jnr.24514
更新日期:2019-08-16 00:00:00
abstract::The growth and differentiation of neural precursor cells in the central nervous system (CNS) are regulated by their response to polypeptide growth factors which interact with specific transmembrane receptor tyrosine kinases (RTKs). We demonstrate that rat oligodendrocyte-type 2 astrocyte (O-2A) glial progenitor cells,...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490360512
更新日期:1993-12-01 00:00:00