Focal cerebral ischemia causes two temporal waves of Akt activation.

abstract：:The mammalian neocortex is composed of six major layers of neurons. Each group of neurons in the cortical layers has distinct characteristics based on the expression of specific genes and connectivity patterns of neural circuits. Neuronal subtype transition and regional identity acquisition are established by temporal...

journal_title：Neuroreport

authors： Lee SE,Hwang S,Ahn SG,D'Arcangelo G,Lee GH

更新日期：2020-07-10 00:00:00

abstract：:Autophagy and neurogenesis play a pivotal role in maintaining cellular homeostasis of neurons in the brain. Endurance exercise (EXE) serves as a potent regulator of both autophagy and neurogenesis in the hippocampus of the brain; however, the underlying molecular mechanisms of the dual expression remains unclear. Thus...

journal_title：Neuroreport

authors： Jang Y

更新日期：2020-04-08 00:00:00

abstract：:We compared beta-amyloid peptide (Abeta) levels in the serum, CSF and brain (hippocampus) and correlated these with spatial learning in APP+PS1 transgenic mice. Compared with non-transgenic littermates, male 14-month-old APP + PS1 mice were impaired in spatial learning in the water maze. Among the APP + PS1 mice, only...

journal_title：Neuroreport

authors： Liu L,Tapiola T,Herukka SK,Heikkilä M,Tanila H

更新日期：2003-01-20 00:00:00

abstract：:Selective degeneration of hypothalamic orexin neurons, a hallmark of pathology in narcolepsy patients, is in part reproduced in hypothalamic slice cultures by application of an endogenous excitotoxin quinolinic acid. Depolarized membrane potential may be responsible for the vulnerability of orexin neurons to excitotox...

journal_title：Neuroreport

authors： Katsuki H,Akaike A

更新日期：2005-08-01 00:00:00

abstract：:In mammals, the thalamic intergeniculate leaflet (IGL) conveys behavioral (non-photic) phase-resetting information to the circadian clock of the suprachiasmatic nucleus. Here we report a 24 h fluctuation in in vivo serotonin release in the hamster IGL region, peaking at night. Novel wheel exposure at midday, a stimulu...

journal_title：Neuroreport

authors： Grossman GH,Farnbauch L,Glass JD

更新日期：2004-01-19 00:00:00

abstract：:Using subtractive cloning, we identified a 1.4 kb mRNA that was ubiquitously expressed in various tissues; this mRNA was highly up-regulated in amygdala nuclei in mice when morphine was repeatedly administered but not when an opiate-receptor antagonist was co-administered. The mRNA encodes a 23 kDa protein, designated...

journal_title：Neuroreport

authors： Ikemoto MJ,Inoue K,Akiduki S,Osugi T,Imamura T,Ishida N,Ohtomi M

更新日期：2002-11-15 00:00:00

abstract：:Metabotropic glutamate receptor mGluR1a was expressed in human embryonic kidney 293 cells. 1S,3R-aminocyclopentane-1,3-dicarboxylic acid (1S,3R-ACPD) stimulated dose-dependently, phosphoinositide (PI) hydrolysis in transfected, but not in non-transfected cells. The polyamine spermine did not affect PI hydrolysis in th...

journal_title：Neuroreport

authors： Manev RM,Gabellini N,Manev H

更新日期：1993-06-01 00:00:00

abstract：:Regulation of CNS distribution of the human immunodeficiency virus (HIV) protease inhibitor saquinavir may involve ATP-dependent membrane-bound efflux transport proteins that are expressed in several brain cellular compartments. We recently characterized molecular and functional expression of one such transporter, mul...

journal_title：Neuroreport

authors： Dallas S,Ronaldson PT,Bendayan M,Bendayan R

更新日期：2004-05-19 00:00:00

abstract：:This study demonstrates the neural system potentially involved in the representation of, and choice between, stimulus classifications in an ambiguous, novel, decision-making task. This difficult choice behaviour is taken as an example of a basic executive processing task. Subjects heard sounds that were consonant-vowe...

journal_title：Neuroreport

authors： Scott SK,Holmes A,Friston KJ,Wise RJ

更新日期：2000-05-15 00:00:00

abstract：:Alpha oscillations during cognitive performance have mostly been studied in memory and/or basic attention tasks. This study investigates task-related alpha power desynchronization during an attentional switching task requiring higher executive attentional control. Low 8-10 Hz and high 10-12 Hz alpha power responses ar...

journal_title：Neuroreport

authors： Verstraeten E,Cluydts R

更新日期：2002-04-16 00:00:00

abstract：:Serotonin (5-HT) is known to reduce apoptosis and in rodent models of brain ischemia. Modulation of programmed cell death during neural development was assessed in early postnatal brains of serotonin transporter (5-HTT) knockout mice, characterized by elevated extracellular 5-HT levels. The number of apoptotic cells v...

journal_title：Neuroreport

authors： Persico AM,Baldi A,Dell'Acqua ML,Moessner R,Murphy DL,Lesch KP,Keller F

更新日期：2003-03-03 00:00:00

abstract：:Because salicylate is known to produce tinnitus in humans and animals, the effect of salicylate on the auditory system of gerbils was investigated using [14C]2-deoxyglucose (2-DG). Salicylate treatment reduced activity in the inferior colliculus (IC), particularly in the high frequency part, whereas activation along s...

journal_title：Neuroreport

authors： Wallhäusser-Franke E,Braun S,Langner G

更新日期：1996-07-08 00:00:00

abstract：:Insulin-like growth factor (IGF)-I is essential for cerebellar granule neuron survival and a decline in IGF-I is implicated in various age-dependent processes. Here we show that IGF-I mRNA levels are decreased in the cerebellum of old rats compared with young rats and this was associated with increased cell death and ...

journal_title：Neuroreport

authors： Pañeda C,Arroba AI,Frago LM,Holm AM,Rømer J,Argente J,Chowen JA

更新日期：2003-08-26 00:00:00

abstract：:One approach to understanding the function of presenilin 1 (PS1), is to discover those proteins with which it interacts. Evidence for a function in developmental patterning came from C. elegans, in which a PS homologue was identified by screening for suppressors of a mutation in Notch/lin-12, a gene which specifies ce...

journal_title：Neuroreport

authors： Zhou J,Liyanage U,Medina M,Ho C,Simmons AD,Lovett M,Kosik KS

更新日期：1997-04-14 00:00:00

abstract：:Spontaneous saccades of both eyes were recorded in head-restrained pigeons placed in 6 different visual conditions (darkness and biocular, uniocular, frontal or lateral viewing). Most saccades (95%) were biocular and directed forward (around the beak axis) and backward (around the horizontal line). In the dark, the pr...

journal_title：Neuroreport

authors： Lemeignan M,Sansonetti A,Gioanni H

更新日期：1992-01-01 00:00:00

abstract：:CIRCLING training (CT) decreases muscarinic acetyl-choline receptor (mAchR) binding in rat striatum. As cholinergic and dopaminergic systems interact strongly we evaluated the expression of D2-subtype dopamine receptor (DA D2) and mAchR together after CT. Animals trained from 30 to 37 days of age and sacrificed 2 mont...

journal_title：Neuroreport

authors： Ibarra GR,Paratcha GC,Wolansky MJ,Azcurra JM

更新日期：1996-11-04 00:00:00

abstract：:Brain slice preparations obtained from the rat were used to study cholinergic GABAergic interaction in mechanisms responsible for production of theta-like activity in hippocampal slices maintained in vitro. Bicuculline, a GABA-A antagonist, applied at 25 microM facilitated the effect of low concentration carbachol (25...

journal_title：Neuroreport

authors： Konopacki J,Gołebiewski H

更新日期：1993-07-01 00:00:00

abstract：:Sleep disorders increase with ageing. The serotonergic system has been linked with sleep regulation. In fatal familial insomnia, a prion disease with insomnia as one major clinical feature, we recently observed a disturbance in the serotonergic system as likely substrate of typical symptoms. Using immunohistochemistry...

journal_title：Neuroreport

authors： Klöppel S,Kovacs GG,Voigtländer T,Wanschitz J,Flicker H,Hainfellner JA,Guentchev M,Budka H

更新日期：2001-03-26 00:00:00

abstract：:The effects of diazepam and D-amphetamine on spontaneous, vestibular- and visually-induced eye movements were studied in the restrained goldfish. These animals showed a stereotyped pattern of spontaneous eye movements that scanned the visual field in the horizontal plane. Fourier analysis of these eye movements reveal...

journal_title：Neuroreport

authors： Salas C,Navarro F,Torres B,Delgado-Garcia JM

更新日期：1992-02-01 00:00:00

abstract：:In order to assess effects of glucagon-like peptide-1 (GLP-1) in the brain excluding the hypothalamus, the effects of GLP-1 (7-36) amide, a naturally produced active fragment, on the electroencephalogram and hippocampal single unit activities of anesthetized male Wistar rats were examined. I.c.v. injection of GLP-1 (7...

journal_title：Neuroreport

authors： Oka JI,Goto N,Kameyama T

更新日期：1999-06-03 00:00:00

abstract：:Axotomy-induced death of corticospinal neurons (CSN) is prevented by intracotrical infusions of BDNF or NT-3 within the first week after axotomy. The present study examined whether this represents merely a delay of CSN death or whether BDNF and NT-3 can promote long-term survival of these neurons in vivo. The neurotro...

journal_title：Neuroreport

authors： Hammond EN,Tetzlaff W,Mestres P,Giehl KM

更新日期：1999-08-20 00:00:00

abstract：:Glutamate excitotoxicity has been suggested to play a role in amyotrophic lateral sclerosis (ALS), yet it remains unclear why some groups of motoneurons (MNs) are more vulnerable to degeneration than others. Our aim was to compare, in normal adult rats, the expression of Group I metabotropic glutamate receptors (mGluR...

journal_title：Neuroreport

authors： Laslo P,Lipski J,Funk GD

更新日期：2001-07-03 00:00:00

abstract：:We investigated the effects of chemical hypoxia on the central pattern generator controlling swimming in stage 42 Xenopus laevis larvae. We recorded motoneuron activity from ventral roots of immobilized tadpoles and evoked swim episodes by brief electrical stimulation of the tail skin. In the presence of the metabolic...

journal_title：Neuroreport

authors： Robertson RM,Björnfors ER,Sillar KT

更新日期：2010-10-06 00:00:00

abstract：:S100B is a calcium-binding protein expressed and secreted by astrocytes, playing a neurotrophic role in neighboring cells. A protective role of the S100B against glutamate-induced excitotoxicity has recently been proposed. We investigated S100B secretion in rat hippocampal astrocytes exposed to high concentrations of ...

journal_title：Neuroreport

authors： Gonçalves D,Karl J,Leite M,Rotta L,Salbego C,Rocha E,Wofchuk S,Gonçalves CA

更新日期：2002-08-27 00:00:00

abstract：:In the present study, we tested the hypothesis that interleukin (IL)-10 down-regulates human microglial cell IL-8 release by inhibiting activation of nuclear factor kappa B (NF-kappaB). Immunohistochemical staining demonstrated that IL-10 markedly suppressed lipopolysaccharide (LPS)- and IL-1beta-stimulated IL-8 expre...

journal_title：Neuroreport

authors： Ehrlich LC,Hu S,Peterson PK,Chao CC

更新日期：1998-06-01 00:00:00

abstract：:The time course of heat-shock protein 70 (HSP70) transcriptional induction was compared with neuronal- and non-neuronal-specific mRNAs following intrastriatal quinolinate (QA) injection. Within one hour of QA exposure, immediate-early gene (IEG; c-fos) activation preceded slight increases in glutamic acid decaroxylase...

journal_title：Neuroreport

authors： Walker PD,Carlock LR

更新日期：1993-06-01 00:00:00

abstract：:Echo-Planar functional magnetic resonance imaging (EP-fMRI) was used to study the activity of the amygdala while three normal female subjects viewed alternating blocks of affectively neutral and affectively negative still pictures. Bilateral activation in the amygdala that was significantly correlated with the changin...

journal_title：Neuroreport

authors： Irwin W,Davidson RJ,Lowe MJ,Mock BJ,Sorenson JA,Turski PA

更新日期：1996-07-29 00:00:00

abstract：:Methamphetamine (METH) is a drug of abuse used for its stimulant effects. Its neurotoxicity is very variable, and is increased by a number of factors, including crowded conditions and increased ambient temperature. The effects of such factors are increasingly important, with the widespread use of these stimulants at n...

journal_title：Neuroreport

authors： Morton AJ,Hickey MA,Dean LC

更新日期：2001-10-29 00:00:00

abstract：:Prism adaptation reduces some symptoms of neglect; however the mechanisms underlying such changes are poorly understood. We suggest that prisms influence neglect by acting on dorsal stream circuits subserving visuomotor control, with little influence on perceptual aspects of neglect. We examined prism adaptation in th...

journal_title：Neuroreport

authors： Striemer CL,Danckert J

更新日期：2010-04-21 00:00:00

abstract：:Evidence exists that motilin immunoreactivity is highly expressed in Purkinje cells. In this study, immunohistochemistry and whole-cell patch-clamp recording were performed to investigate the spatial distribution and electrophysiological effects of motilin receptors in the cerebellum. We show here that motilin recepto...

journal_title：Neuroreport

authors： Chen H,Chen L,Wang JJ,Wei HJ,Yung WH

更新日期：2007-08-27 00:00:00