Abstract:
:Two types of mRNAs for neurofibromin isoforms, which are produced by Von Recklinghausen neurofibromatosis (NF1) gene, have so far been identified. In the present study, we analyzed the differential expression of the two NF1 mRNAs in 16 cases of human astrocytic tumors and in surrounding normal tissues by the RNA-polymerase chain reaction. Astrocytic tumors predominantly expressed type II NF1 mRNA, whereas it was type I isoform that was predominantly expressed in the normal tissues. These results suggested that the increased type II NF1 protein might play an important role in the growth of astrocytic tumors.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Tokuyama T,Uemura K,Fujita Mdoi
10.1016/0304-3940(95)11875-wsubject
Has Abstractpub_date
1995-08-25 00:00:00pages
189-92issue
3eissn
0304-3940issn
1872-7972pii
0304-3940(95)11875-Wjournal_volume
196pub_type
杂志文章abstract::The effect of diffuse luminance flicker stimulation of a large area (approximately 30 degrees diameter) on red blood cell flux (F) in the optic nerve head was measured in the anesthetized cat. F increased markedly during sustained flicker. The F-response to the initiation and cessation of the stimulation was found to ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(91)90282-x
更新日期:1991-07-22 00:00:00
abstract::The effect of dexmedetomidine, a selective alpha2-adrenoreceptor agonist and neuroprotective agent on the expression of immediate early genes and heat shock protein hsp70, was studied using quantitative in situ hybridization in a global ischemia model. At the dose previously shown to be neuroprotective dexmedetomidine...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(97)00585-5
更新日期:1997-08-29 00:00:00
abstract::Acute alcohol challenge suppresses the mismatch negativity (MMN) component of the auditory event-related potential (ERP), however, the transmitter systems underlying MMN generation/mediating this effect have remained vague. To test adenosinergic contribution, 12 healthy social drinkers participated in four sessions, i...
journal_title:Neuroscience letters
pub_type: 临床试验,杂志文章
doi:10.1016/s0304-3940(99)00897-6
更新日期:2000-01-07 00:00:00
abstract::Differences between neural processing underling day and night vision occur at initial transduction steps. However, comparison of a visual task performance in photopic versus scotopic situations has an intrinsic problem: ambient light levels directly affect the contrast between stimuli and background. By using a simple...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2005.09.033
更新日期:2006-01-23 00:00:00
abstract::This study explored whether patients with Parkinson's disease alter the regulation of upright standing according to constraints imposed by the environmental context. The provision of context-dependent adaptations was inferred from the presence of adjustments to standing postural control that would serve to reduce fall...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2007.03.040
更新日期:2007-05-18 00:00:00
abstract::Because there are sex differences in feeding-related behavior and orexin neurons are involved in feeding, we looked for a possible sex difference in the response of orexin neurons in the lateral hypothalamic area to fasting, using the phosphorylated cyclic AMP response element-binding protein (pCREB) as a marker of ne...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2009.07.035
更新日期:2009-09-29 00:00:00
abstract::Precursor cells have been shown to be affected by oxidative stress, in vivo and vitro, but little is known about the expression of antioxidant mechanisms in neuronal/glial differentiation. We have characterized the expression of Cu/Zn superoxide dismutase (Cu/Zn SOD), one of the main antioxidant proteins involved in t...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2006.03.010
更新日期:2006-06-19 00:00:00
abstract::We have previously shown that glycine binding sites on presynaptic NMDA receptors (NMDA-Rs) can tonically regulate glutamate release in the rat visual cortex. In the present study, we investigated the subunit composition of these presynaptic NMDA-Rs. We recorded miniature a-amino-3-hydroxy-5-methyl-4-isoxazolepropioni...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2007.12.023
更新日期:2008-02-27 00:00:00
abstract::The mechanism of sympathetic - sensory coupling after nerve injury is still not well understood. We have studied the changes in resting potential and excitability of sensory neurones induced by adrenergic stimulation, using whole-cell and perforated-patch recordings in cultured dorsal root ganglion neurones from norma...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(02)00665-1
更新日期:2002-09-06 00:00:00
abstract::To determine how position sense depends on the functional state of the receptors involved, we assessed the accuracy of knee position sense before and after a moderate exercise on a cycle ergometer. Measurements were done on 32 healthy subjects with four protocols combining two tasks (intramodal: using the contralatera...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(00)01297-0
更新日期:2000-08-04 00:00:00
abstract::The Flinders Sensitive Line rats showed an increased immobility response by 104% (P<0.01) in the forced swim test with respect to the Flinders Resistant Line rats (control). The Flinders Sensitive Line rats also had an increase of [(125)I]galanin (porcine) binding in the dorsal raphe (55+/-3.3 fmol/mg protein) with re...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(01)02446-6
更新日期:2002-01-11 00:00:00
abstract::Intracellular recordings were made from rat striatal neurones in vitro. In the presence of intracellular caesium and extracellular tetraethylammonium chloride (TEA) (5 mM) and barium (3 mM), long-lasting plateau potentials developed followed by a prominent voltage independent hyperpolarization which lasted several sec...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(87)90384-3
更新日期:1987-08-05 00:00:00
abstract::The neurotoxic effects of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) on striatal total biopterin were examined both in rats and mice at different time courses. Results indicate that MPTP caused a significant decrease of total biopterin content in the striatum of mice. This effect occurred as soon as 6 h after...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(88)90227-3
更新日期:1988-06-07 00:00:00
abstract::Nogo-A is an inhibitor of neurite outgrowth and axonal regeneration after CNS injury. Several functional regions including Nogo-66 were identified to mediate the inhibitory effect of Nogo-A. We have reported that Nogo-66 could promote neural progenitors to differentiate into glial cells. Here we exam three other regio...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2009.04.034
更新日期:2009-07-24 00:00:00
abstract::Glufosinate ammonium, a broad-spectrum herbicide, causes convulsion in rodents and humans. Because of the structural similarities between glufosinate and glutamate, the convulsion induced by glufosinate ammonium may be ascribed to glutamate receptor activation. Three N-methyl-D-asparate (NMDA) receptor antagonists, di...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(01)01765-7
更新日期:2001-05-18 00:00:00
abstract::Cerebral ischemia induces rapid efflux of glutamate into the extracellular space contributing to excessive activation of glutamate receptors in postsynaptic cells, particularly N-methyl-D-aspartate (NMDA) receptors, which triggers the neuron lesion through calcium overload. Our studies indicated that cerebral ischemia...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2003.10.076
更新日期:2004-01-30 00:00:00
abstract::Basal serotonin (5-HT) release, measured in the presence of imipramine, was significantly reduced in slices of hippocampus, n. accumbens and frontal cortex from rats subjected to forced swim test and chronic isolation. Only in the hippocampus, in the two animal models of depression, K-stimulated release was increased....
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(93)90584-8
更新日期:1993-11-12 00:00:00
abstract::Agmatine (decarboxylated arginine) has been proposed as an endogenous ligand for non-adrenoceptor, imidazoline binding sites, but also binds to alpha 2-adrenoceptors. The interaction of agmatine with alpha 2-adrenoceptors was evaluated by studying the effect of agmatine on the firing rate of locus coeruleus (LC) neuro...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(96)13180-3
更新日期:1996-11-22 00:00:00
abstract::Numerous studies have provided evidence for a genetic association of the Apolipoprotein E (ApoE) epsilon4 allele and late onset familial and sporadic Alzheimer's disease (AD). Clinical observations show that a proportion of schizophrenic patients may suffer from severe cognitive impairment. That could reflect a partic...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(98)00144-x
更新日期:1998-03-13 00:00:00
abstract::Strychnine-sensitive glycine-activated currents and gamma-aminobutyric acid (GABA)-activated currents were compared in two types of neurons acutely isolated from striatal slices by vibrodissociation: large cells, presumably cholinergic giant aspiny neurons (GAN) and medium sized cells, presumed medium spiny neurons (M...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(98)00072-x
更新日期:1998-02-27 00:00:00
abstract::The effect of unilateral electrical stimulation of the posterior interposate nucleus of the cerebellum was examined on the activity of the nigro-striatal dopaminergic pathways on both sides of the brain in alpha-chloralose anaesthetized cats. Push-pull cannulae were inserted into both caudate nuclei and both substanti...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(80)90079-8
更新日期:1980-04-01 00:00:00
abstract::The effect of the R(-) and S(+) isomers of 3,4-methylenedioxyamphetamine (MDA) and its N-methyl analog 3,4-methylenedioxymethamphetamine (MDMA) on [3H]inositol monophosphate accumulation was studied in cells expressing either 5-HT2A or 5-HT2C receptors. The isomers of MDA produced a concentration dependent increase in...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(94)90057-4
更新日期:1994-08-15 00:00:00
abstract::The neuropathological hallmarks of Alzheimer's disease (AD) include the presence of extracellular amyloid-beta peptide (Abeta) in the form of amyloid plaques in the brain parenchyma and neuronal loss. The mechanism associated with neuronal death by amyloid plaques is unclear but oxidative stress and glial activation h...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2010.06.045
更新日期:2010-08-30 00:00:00
abstract::Gangliosides are major components of cell membranes and are particularly enriched in the mammalian brain where they represent the major lipid constituents of the neuronal cell surface. In the central nervous system, gangliosides have a close connection to many neurophysiological functions related to neurogenesis, prol...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2008.05.020
更新日期:2008-07-11 00:00:00
abstract::The role of oropharyngeal mechanisms in body water regulation was studied in 12 human males by measuring urine output and osmolality before and after drinking a very small volume of distilled water (0.15 ml/kg b.w.t.). Hypotonic diuresis was resulted only in the subjects (n = 6) who drank only sufficient water to keep...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(89)90792-1
更新日期:1989-12-15 00:00:00
abstract::MxA protein, one of the GTPases, is induced in the cytoplasm by interferons and confers a high degree of resistance to some viruses. We recently reported that in cases of Parkinson's disease (PD), Lewy bodies (LBs) in the substantia nigra (SN) were positive for MxA. This study aimed to provide more detailed data on Mx...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(95)11777-t
更新日期:1995-07-28 00:00:00
abstract::Hippocampal synaptic plasticity between Schaffer collaterals and CA1 pyramidal neurons can be induced by activation of N-methyl-d-aspartate receptors (NMDARs) or of metabotropic glutamate receptors (mGluRs). Inhibitory GABAergic interneurons in this region abundantly terminate on pyramidal neurons and may thus influen...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2009.09.053
更新日期:2009-12-18 00:00:00
abstract::The vestibular system has widespread interactions with other sensory modalities. Here we investigate whether vestibular stimulation modulates somatosensory function, by assessing the ability to detect faint tactile stimuli to the fingertips of the left and right hand with or without galvanic vestibular stimulation (GV...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2013.06.046
更新日期:2013-08-29 00:00:00
abstract::Regular physical activity benefits brain health and function. Physical activity performed by young adults is declining. However, the influence of diminished physical activity on cognitive performance and motor preparation in young adults remains unclear. This study measured changes in behavior and brain activity durin...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2016.12.045
更新日期:2017-01-18 00:00:00
abstract::The formation of the beta pleated configuration of the amyloid peptide fragment 25-35 in aqueous solution, has been studied using thioflavin-T fluorescence as an indicator of such folding. Both phosphate and adenosine triphosphate (ATP) enhance the formation of aggregated beta-sheets. This phosphate-induced aggregatio...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(99)00307-9
更新日期:1999-05-21 00:00:00