Nitric oxide and long-term synaptic depression in the rat hippocampus.

abstract：:The seven-transmembrane receptor Smoothened is essential for hedgehog signal transduction. In adulthood, the highest density of Smoothened mRNA is found in the granule cell layer of the dentate gyrus. There, Smoothened expression is regulated by the synaptic activity involving the glutamatergic transmission. The preci...

journal_title：Neuroreport

authors： Masdeu C,Bernard V,Faure H,Traiffort E,Ruat M

更新日期：2007-03-05 00:00:00

abstract：:Cultured and transplanted adrenal medullary cells respond to ciliary neurotrophic factor (CNTF) with neurite formation and improved cell survival although the presence of the CNTF receptor-alpha (CNTFRalpha) has been unclear. This study show that CNTFRalpha mRNA was expressed in the postnatal day 1 as well as in the a...

journal_title：Neuroreport

authors： Förander P,Brené S,Strömberg I

更新日期：2000-02-28 00:00:00

abstract：:Eleven early-onset dementia families, all with affected individuals who have either presented clinical symptoms of early onset familial Alzheimer's disease (EOFAD) or have been confirmed to have EOFAD by autopsy, and two early onset cases with biopsy-confirmed AD pathology, were screened for missense mutations in the ...

journal_title：Neuroreport

authors： Kwok JB,Taddei K,Hallupp M,Fisher C,Brooks WS,Broe GA,Hardy J,Fulham MJ,Nicholson GA,Stell R,St George Hyslop PH,Fraser PE,Kakulas B,Clarnette R,Relkin N,Gandy SE,Schofield PR,Martins RN

更新日期：1997-04-14 00:00:00

abstract：:Hydrogen peroxide (H₂O₂) is a ubiquitous reactive oxygen species that can induce several inner ear disorders. In this study, we recorded the potassium (K) currents in acutely isolated inner hair cells of guinea pig cochlea, and investigated the effects of H₂O₂. We also observed the morphological changes in inner hair ...

journal_title：Neuroreport

authors： Kimitsuki T,Komune N,Noda T,Takaiwa K,Ohashi M,Komune S

更新日期：2010-11-17 00:00:00

abstract：:This study provides evidence for the role of semantic composition in compound word processing. We examined the online processing of isolated two meaning unit compounds in Chinese, a language that uses compounding to 'disambiguate' meaning. Using auditory presentation, we manipulated the semantic meaning and syntactic ...

journal_title：Neuroreport

authors： Bai C,Bornkessel-Schlesewsky I,Wang L,Hung YC,Schlesewsky M,Burkhardt P

更新日期：2008-04-16 00:00:00

abstract：:The majority of retinal ganglion cells innervating the suprachiasmatic nucleus are intrinsically light sensitive, while the rest are conventional ganglion cells that collect inputs through conventional photoreceptors. Here we report a rarely encountered ganglion cell that had a dendritic field covering approximately 1...

journal_title：Neuroreport

authors： Pu M,Chen B,Li RS,Tay D,So KF

更新日期：2006-10-02 00:00:00

abstract：:A lexical decision experiment was conducted while event related potentials (ERPs) were recorded. The word frequency and the first syllable frequency of each word were manipulated. Results showed that, while high frequency words produced less negative amplitudes in the N400 time window than low frequency words, the inv...

journal_title：Neuroreport

authors： Barber H,Vergara M,Carreiras M

更新日期：2004-03-01 00:00:00

abstract：:In the present study, the activity changes of chicken retinal ganglion cells in response to light stimuli with defined contrast were investigated, in the presence of various levels of sustained background illumination. Following a step increase of light illumination, the firing rate of most retinal ganglion cells incr...

journal_title：Neuroreport

authors： Chen AH,Zhou Y,Gong HQ,Liang PJ

更新日期：2005-03-15 00:00:00

abstract：:This study examined 'prepulse inhibition' in the context of an auditory two-tone discrimination task performed by 15 healthy subjects. In order to distinguish between masking or excitatory information processes, weak acoustic pulses immediately preceded or succeeded a target or non-target tone in the discrimination. B...

journal_title：Neuroreport

authors： Schall U,Ward PB

更新日期：1996-01-31 00:00:00

abstract：:Using NADPH-diaphorase (NADPH-d) histochemistry, the expression of nitric oxide synthase (NOS) was studied in the rat brain 1 week after kainate-induced status epilepticus. Major changes were observed in the hippocampi of epileptic animals, especially a loss of NADPH-d positive fibres in the periphery of degenerative ...

journal_title：Neuroreport

authors： Lerner-Natoli M,de Bock F,Bockaert J,Rondouin G

更新日期：1994-12-20 00:00:00

abstract：:Diffusion tensor imaging (DTI) can non-invasively examine the molecular diffusion of water in vivo and directly reflects the anatomical integrity of neural fibers in white matter. Fractional anisotropy (FA) can be calculated from DTI data, and utilized to evaluate white matter integrity. DTI was performed on 30 patien...

journal_title：Neuroreport

authors： Sun Z,Wang F,Cui L,Breeze J,Du X,Wang X,Cong Z,Zhang H,Li B,Hong N,Zhang D

更新日期：2003-10-06 00:00:00

abstract：:Previous studies have established a role for N-methyl-D-aspartate receptor (NMDAR) containing the GluN2B subunit in efficient learning behavior on a variety of tasks. Recent findings have suggested that NMDAR on GABAergic interneurons may underlie the modulation of striatal function necessary to balance efficient acti...

journal_title：Neuroreport

authors： Brigman JL,Daut RA,Saksida L,Bussey TJ,Nakazawa K,Holmes A

更新日期：2015-06-17 00:00:00

abstract：:In this study, we examined the expression of insulin-like growth factor I (IGF-I) and its receptor (IGF-IR) in dorsal root ganglia (DRG) neurons in two rodent models of nerve injury: sciatic nerve axotomy and streptozotocin-induced (STZ) painful diabetic neuropathy. We demonstrate that IGF-I and its receptor are prefe...

journal_title：Neuroreport

authors： Craner MJ,Klein JP,Black JA,Waxman SG

更新日期：2002-09-16 00:00:00

abstract：:Galanin, oxytocin and cholecystokinin (CCK) are peptides that influence feeding behaviour. Galanin has been found to stimulate food intake and oxytocin and CCK have been suggested to be satiety agents. The present study was performed in order to investigate if galanin influences the secretion of oxytocin and CCK as a ...

journal_title：Neuroreport

authors： Björkstrand E,Hulting AL,Meister B,Uvnäs-Moberg K

更新日期：1993-01-01 00:00:00

abstract：:In order to ascertain whether disturbances of neurogenesis occur in chronic neurodegenerative disorders, we assessed hippocampal cell proliferation in the R6/1 transgenic mouse model of Huntington's disease (HD). Using BrdU labelling for dividing cells at two different time points (5 and 20 weeks) in transgenic and wi...

journal_title：Neuroreport

authors： Lazic SE,Grote H,Armstrong RJ,Blakemore C,Hannan AJ,van Dellen A,Barker RA

更新日期：2004-04-09 00:00:00

abstract：:Various clinical populations display atypical volume asymmetry of language structures and also the auditory M100 source. Although such atypical volume asymmetries have also been observed in autism, M100 source asymmetries have not yet been investigated. We examined M100 asymmetry in autism and its relationship with la...

journal_title：Neuroreport

authors： Schmidt GL,Rey MM,Oram Cardy JE,Roberts TP

更新日期：2009-07-15 00:00:00

abstract：:Mental rotation performance has been found to produce one of the largest sex differences in cognition. Many theories suggest that this effect should be accompanied by a sex difference in functional cerebral asymmetry, but empirical data are more than equivocal probably because of (a) the use of inappropriate stimuli a...

journal_title：Neuroreport

authors： Pellkofer J,Jansen P,Heil M

更新日期：2014-08-06 00:00:00

abstract：:The effect of huperzine A (HupA) on oxygen-glucose deprivation (OGD)-induced injury was investigated in the rat pheochromocytoma cell line PC12. OGD for 3 h and reoxygenation for 24 h triggered apoptosis characterized by chromatin condensation, nucleus fragmentation and DNA laddering. The temporal profile of c-jun, p5...

journal_title：Neuroreport

authors： Zhou J,Fu Y,Tang XC

更新日期：2001-07-20 00:00:00

abstract：:Brief tetanic stimulation of parallel fibres can evoke a slow excitatory postsynaptic potential (EPSP) in cerebellar Purkinje cells that is mediated by metabotropic glutamate receptors (mGluRs). It is likely that the receptor subtype involved is mGluR1, which couples to the production of diacylglycerol and inositol-1,...

journal_title：Neuroreport

authors： Batchelor AM,Vranesic I,Del Principe F,Garthwaite J,Knöpfel T

更新日期：1996-08-12 00:00:00

abstract：:Neuronotrophic factors (e.g. basic fibroblast growth factor, bFGF and nerve growth factor, NGF) have been demonstrated to respectively promote survival and neuritogenesis in cultures of dissociated adult rat spiral ganglia. Transforming growth factor beta (TGF beta 1) has been shown to modulate the response of culture...

journal_title：Neuroreport

authors： Lefebvre PP,Martin D,Staecker H,Weber T,Moonen G,Van de Water TR

更新日期：1992-04-01 00:00:00

abstract：:It remains an open question whether the amplitude of N400 reflects combinatory postlexical semantic integration processing. To examine the issue, we repeatedly presented strictly simplified, N400-eliciting three-word structures for seven times, mixed with their plausible counterparts, followed immediately by a much mo...

journal_title：Neuroreport

authors： Huang Y,Jiang M,Guo Q,Yang FG

更新日期：2018-11-07 00:00:00

abstract：:In previous studies, we demonstrated functional neuronal and dopaminergic differentiation of fetal mesencephalic neural precursor cells. The major factors for orienting their progeny towards a dopaminergic phenotype are forskolin and interleukin-1beta. Here, we investigated the effects of dexamethasone (10 microM) on ...

journal_title：Neuroreport

authors： Sabolek M,Herborg A,Schwarz J,Storch A

更新日期：2006-11-06 00:00:00

abstract：:The Flinders sensitive line of rats is a widely accepted and validated model of depression. These rats demonstrate abnormalities in limbic dopamine neurotransmission, suggesting disturbed neuronal activity in the ventral tegmental area. Interspike interval time-series were recorded from the ventral tegmental area of c...

journal_title：Neuroreport

authors： Dremencov E,Nahshoni E,Levy D,Mintz M,Overstreet DH,Weizman A,Yadid G

更新日期：2004-08-26 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：:We studied whether 5-month-old to 8-month-old infants process faces in a size-invariant manner by applying the fNIRS-adaptation paradigm used in our previous study. We used near-infrared spectroscopy to measure hemodynamic responses in the temporal regions of infants' brains during the repeated presentation of an iden...

journal_title：Neuroreport

authors： Kobayashi M,Otsuka Y,Kanazawa S,Yamaguchi MK,Kakigi R

更新日期：2012-12-05 00:00:00

abstract：:High concentrations of local anesthetics are neurotoxic, but the mechanism for this neurotoxicity is obscure. Here, we report increased concentrations of glutamate in the cerebrospinal fluid after intrathecal injections of high concentrations of tetracaine (a local anesthetic). The peak concentrations of glutamate aft...

journal_title：Neuroreport

authors： Ohtake K,Matsumoto M,Wakamatsu H,Kawai K,Nakakimura K,Sakabe T

更新日期：2000-04-07 00:00:00

abstract：:Methylphenidate (Ritalin) is a psychostimulant drug used to treat children with attention deficit hyperactivity disorder. Despite its widespread and increasing clinical use, little is known about the long-term consequences of drug treatment. We compared the effects of a single injection of methylphenidate with that of...

journal_title：Neuroreport

authors： Chase TD,Brown RE,Carrey N,Wilkinson M

更新日期：2003-04-15 00:00:00

abstract：:The current study investigated whether an ipsilesional bias in line bisection, a conventional measure for diagnosing hemispatial neglect, persists even in the absence of this syndrome in patients with chronic lesions restricted to posterior association cortex or dorsolateral prefrontal cortex. Both left and right hemi...

journal_title：Neuroreport

authors： Machado L,Rafal RD

更新日期：1999-10-19 00:00:00

abstract：:We examined whether 53 adult non-aphasic patients with either left (22) or right temporal lobe lesions (31) demonstrate dissociable patterns of hemispheric asymmetries in category-specific word fluency tasks. The patients were asked to articulate as many appropriate words as possible within 60 or 90 s in response to s...

journal_title：Neuroreport

authors： Jokeit H,Heger R,Ebner A,Markowitsch HJ

更新日期：1998-07-13 00:00:00

abstract：:Animal models suggest that the asymmetry of monocular optokinetic nystagmus (OKN) in young infants can be explained by a direct pathway from retina to the midbrain nucleus of the optic tract. However, earlier studies with hemispherectomized infants showed no evidence for OKN responses towards the damaged cortex that c...

journal_title：Neuroreport

authors： Morrone MC,Atkinson J,Cioni G,Braddick OJ,Fiorentini A

更新日期：1999-09-09 00:00:00