Differential effects of somatostatin on adenylate cyclase as functional correlate for different brain somatostatin receptor subpopulations.

abstract：:Diurnal variation of N-acetylserotonin in the retina was studied in male rats housed under a photoperiod of 12 h light and 12 h darkness (lights on at 06.00 h) for two weeks. N-acetylserotonin was extracted from the retina by ethyl acetate at pH less than or equal to 3 and was determined by radioimmunoassay. There is ...

journal_title：Neuroscience letters

authors： Pang SF,Yu HS,Tang PL

更新日期：1981-01-20 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

authors： Bondy SC,Truong A

更新日期：1999-05-21 00:00:00

abstract：:Baclofen reduced the frequency and aborted the bursts of spontaneous paroxysmal discharges in rat neocortical slices maintained in magnesium-free medium. This action was prevented by pretreatment with barium or caesium, which each increased the ictaform burst frequency, amplitude and duration. 4-Amino-pyridine also in...

journal_title：Neuroscience letters

authors： Ong J,Kerr DI,Johnston GA

更新日期：1990-05-04 00:00:00

abstract：:This work explores the hypothesis that perturbations caused by ethanol on the regulatory role of retinoids in brain development may be a mechanism involved in the neuropathology of fetal alcohol syndrome. The interaction of ethanol and retinoic acid (RA) on RA receptor (RAR) beta and glial fibrillary acidic protein (G...

journal_title：Neuroscience letters

authors： Grummer MA,Salih ZN,Zachman RD

更新日期：2000-11-17 00:00:00

abstract：:The sigma-1 (σ1) receptor is a chaperone protein located on the mitochondria-associated membrane of the endoplasmic reticulum, while the sigma-2 receptor (σ2) is an endoplasmic reticulum-resident membrane protein. Recent evidence indicates that both of these receptors figure prominently in the pathophysiology of Alzhe...

journal_title：Neuroscience letters

authors： Jia H,Zhang Y,Huang Y

更新日期：2019-01-19 00:00:00

abstract：:Human subjects maintained isometric plantar or dorsal flexions of the ankle in a matching task. H-reflexes of different sizes were superimposed on the steady activity. The peak-to-peak amplitude of the reflexes was measured on the electromyogram (EMG) of the soleus muscle. The size of the corresponding muscle contract...

journal_title：Neuroscience letters

authors： Ruegg DG,Fluri M

更新日期：1989-08-28 00:00:00

abstract：:The time-variant quadratic phase coupling (QPC) in trace alternant (TA) EEG patterns in healthy full-term neonates (quiet sleep) was investigated by means of time-variant bispectral analysis. The frequency plain 1-1.5 Hz <=> 3.5-4.5 Hz was used as the region-of-interest. QPC rhythms with a frequency of approximately 0...

journal_title：Neuroscience letters

authors： Schwab K,Putsche P,Eiselt M,Helbig M,Witte H

更新日期：2004-10-21 00:00:00

abstract：:Brachial plexus avulsion (BPA) is one of the major injuries in motor vehicle accidents and may result in neuropathic pain. Accumulating evidence suggests that 30-80% of BPA developed neuropathic pain in human. In our study, complete brachial plexus avulsion (C5-T1) rats model leads to the results that 37.5% of rats ha...

journal_title：Neuroscience letters

authors： Wang L,Yuzhou L,Yingjie Z,Jie L,Xin Z

更新日期：2015-03-04 00:00:00

abstract：:The present study confirmed histopathologically the suggestion that pulmonary edema may underlie the fulminant death following microinjection of kainic acid into many medullary sites in rats anesthetized with pentobarbital sodium. We also observed a sustained elevation in systemic arterial pressure, cardiac contractil...

journal_title：Neuroscience letters

authors： Chan SH,Chong AP,Ong BT,Chong OK,Lim HC

更新日期：1985-12-18 00:00:00

abstract：:In chick brain microvessels, monoamine oxidase activity using catecholamines (dopamine and noradrenaline) and indoleamines (serotonin and tryptamine) as substrates was higher than that measured in synaptosomes and free mitochondria. In contrast, phenylalkyamines such as tyramine and 2-phenylethylamine were more deamin...

journal_title：Neuroscience letters

authors： Durand M

更新日期：1986-12-12 00:00:00

abstract：:Little is known about the effect of wnt-3a on motor nerve function and its specific molecular mechanisms after spinal cord injury (SCI). This study demonstrates that the downregulated expression levels of caspases-3, caspases-9 and chondroitin sulfate proteoglycan (CSPG) proteins and number of proportion of transferas...

journal_title：Neuroscience letters

authors： Gao K,Niu J,Dang X

更新日期：2020-10-15 00:00:00

abstract：:The relationship between pain severity and the extent of injury to a peripheral nerve remains elusive. In this study, we compared the pain behavior resulting from partial (1/3-1/2 thickness) and full L5 spinal nerve ligation (SNL) in rats. The decrease in paw withdrawal threshold (PWT) to mechanical stimuli in the hin...

journal_title：Neuroscience letters

authors： Guan Y,Yuan F,Carteret AF,Raja SN

更新日期：2010-02-26 00:00:00

abstract：:Several lines of evidence suggest that dopamine exerts a chronic inhibitory action on GABAergic cells in the striatum, and striatal glutamic acid decarboxylase (GAD) mRNA levels are increased after ipsilateral dopaminergic denervation. In the present study we have used GAD immunocytochemistry to assess whether dopamin...

journal_title：Neuroscience letters

authors： Segovia J,Armstrong DM,Benzing WC,Hornby PJ

更新日期：1991-01-28 00:00:00

abstract：:Ibotenate induced a concentration- and largely calcium-dependent release of endogenous glutamate from guinea pig cerebro-cortical synaptosomes. In the absence of Mg2+, the response to ibotenate was enhanced through a mechanism involving N-methyl-D-aspartate (NMDA) receptors; this component was sensitive to the NMDA an...

journal_title：Neuroscience letters

authors： Jones PG,Roberts PJ

更新日期：1990-03-26 00:00:00

abstract：:Perception of limb position and motion is abnormal in Parkinson's disease (PD). Despite the fact that the processing of proprioceptive inputs is inherently temporal, most studies have assessed spatial aspects of proprioception in PD patients. Here, we use a recently described method to test whether deficits also exist...

journal_title：Neuroscience letters

authors： Fiorio M,Stanzani C,Rothwell JC,Bhatia KP,Moretto G,Fiaschi A,Tinazzi M

更新日期：2007-05-07 00:00:00

abstract：:Occasional repetitions embedded in a sequence of ever-changing sounds elicit a frontally negative event-related potential peaking between 100 and 200 ms from the onset of sound repetition (repetition negativity, RN). Three interpretations have been suggested for the emergence of RN: (1) RN is a mismatch negativity (MM...

journal_title：Neuroscience letters

authors： Horváth J,Winkler I

更新日期：2004-09-23 00:00:00

abstract：:Opiate withdrawal syndrome is temporally associated with the hyperactivity of locus coeruleus neurons. Previous studies have shown that this hyperactivity, at least in part, results from the activity of excitatory afferents which mainly include the orexinergic neurons of hypothalamus and glutamatergic neurons of parag...

journal_title：Neuroscience letters

authors： Hooshmand B,Azizi H,Javan M,Semnanian S

更新日期：2017-01-01 00:00:00

abstract：:Reduction of non-protein-bound iron (NPBI) using iron chelators may attenuate hypoxia-ischemia-induced reperfusion injury of the brain. This study investigated whether administration of low-dose deferoxamine and allopurinol, both having NPBI-chelating properties, reduced hypoxia-ischemia-induced NPBI formation in plas...

journal_title：Neuroscience letters

authors： Shadid M,Buonocore G,Groenendaal F,Moison R,Ferrali M,Berger HM,van Bel F

更新日期：1998-05-22 00:00:00

abstract：:Addicsin is a murine homologue of rat glutamate-transporter-associated protein 3-18 (GTRAP3-18), a putative modulator of neural glutamate-transporter excitatory amino acid carrier 1 (EAAC1). The other molecular functions of addicsin, however, remain largely unknown. We analyzed here the regional and cellular distribut...

journal_title：Neuroscience letters

authors： Inoue K,Akiduki S,Ikemoto MJ

更新日期：2005-10-07 00:00:00

abstract：:In lateral line and electrosensory systems of fish, the animal's own movements create unwanted stimulation that could interfere with the detection of biologically important signals. Here we report that an adaptive filter in the medullary nuclei of both senses suppresses self-stimulation. Second-order electrosensory ne...

journal_title：Neuroscience letters

authors： Montgomery JC,Bodznick D

更新日期：1994-06-20 00:00:00

abstract：:UBB+1 protein is an aberrant ubiquitin associated with progressive supranuclear palsy (PSP). It leads to proteasome inhibition, heat-shock protein (HSP) expression and apoptosis in cell cultures. Despite UBB+1 polyubiquitination (an indication of proteasome inhibition), we demonstrate that UBB+1 and HSP40/HSP70 immuno...

journal_title：Neuroscience letters

authors： Hope AD,Lashley T,Lees AJ,de Silva R

更新日期：2004-04-08 00:00:00

abstract：:Tetanic mossy fiber stimulation transiently reduced recurrent inhibition in the rat dentate gyrus. The post-tetanic depression of inhibition was maximal 200 ms after the tetanus and typically lasted for about 2 s. Phaclofen, a selective gamma-aminobutyric acid-B (GABAB) receptor antagonist, significantly increased the...

journal_title：Neuroscience letters

authors： Mott DD,Bragdon AC,Lewis DV

更新日期：1990-03-02 00:00:00

abstract：:The number of neurons in the primary motor cortex (MI) and the primary somatosensory cortex (SI) were estimated in the same locations of brains from sporadic amyotrophic lateral sclerosis (ALS) cases and controls. The number of MI and SI neurons and Betz cells were significantly decreased in the ALS cases as compared ...

journal_title：Neuroscience letters

authors： Mochizuki Y,Mizutani T,Shimizu T,Kawata A

更新日期：2011-09-26 00:00:00

abstract：:Spinal muscular atrophy (SMA), a primarily childhood form of motor neuron disease, is caused by reduced levels of a single, ubiquitously expressed protein: the survival motor neuron (SMN) protein. Low levels of SMN cause motor neuron degeneration but recent reports describe effects of low SMN levels in multiple tissue...

journal_title：Neuroscience letters

authors： Somers E,Riessland M,Schreml J,Wirth B,Gillingwater TH,Parson SH

更新日期：2013-06-07 00:00:00

abstract：:Using specific radioimmunoassays, melatonin was quantified in the aqueous humor and serum of male pigmented rabbits adapted to 12L:12D with lights on at 06.00 h. Melatonin concentrations in the aqueous humor at 08.00 and 16.00 h were similar (mean: 5.23 pg/ml) and significantly lower than those at 22.00 and 01.00 h (m...

journal_title：Neuroscience letters

authors： Yu HS,Yee RW,Howes KA,Reiter RJ

更新日期：1990-08-24 00:00:00

abstract：:The antagonism of some benzodiazepine (Bz) actions by physostigmine was investigated in 4 Papio papio baboons. As a model of these actions, the myoclonus induced in this species by clonazepam i.m. administration was used. The baboon develops, 20-30 min after Bz i.m. injection, a non-epileptic myoclonus characterized b...

journal_title：Neuroscience letters

authors： Rektor I,Bryere P,Valin A,Silva-Barrat C,Naquet R,Menini C

更新日期：1984-11-23 00:00:00

abstract：:Exposure to morphine during pregnancy produced long-term effects in offspring behaviors. Recent studies have shown that voluntary exercise decreases the severity of anxiety behaviors in both morphine-dependent and withdrawn rats. Thus, the aims of the present study were to examine whether maternal exercise decreases p...

journal_title：Neuroscience letters

authors： Haydari S,Miladi-Gorji H,Mokhtari A,Safari M

更新日期：2014-08-22 00:00:00

abstract：:Intrathecal (i.t.) administration of substance P in the awake rat decreases reaction time (RT) in the tail flick test. In the anaesthetized rat, noxious thermal stimulation of the tail (by immersion of tip in water at 55 degrees C) also decreases RT; this effect is blocked by a substance P antagonist. The present stud...

journal_title：Neuroscience letters

authors： Cridland RA,Henry JL

更新日期：1989-07-31 00:00:00

abstract：:The recurrence of dopamine-immunoreactive (DAi) fibers and the effect of the adrenocorticotrophic hormone (ACTH)-(4-9) analog ORG 2766 on this process were investigated 1, 4, 12 and 24 weeks after a unilateral 6-hydroxydopamine (6-OHDA) lesion in the nucleus accumbens (NAc). DAi fibers were almost completely absent 1 ...

journal_title：Neuroscience letters

authors： Vos PE,Steinbusch HW,Van Ree JM

更新日期：1996-03-22 00:00:00

abstract：:The basal extracellular concentration of dopamine in the nucleus accumbens was quantified using the 'no net flux' microdialysis method, in rats undergoing withdrawal from D-amphetamine. Rats were initially pretreated with saline, or an escalating dose amphetamine regimen known to produce a robust withdrawal syndrome, ...

journal_title：Neuroscience letters

authors： Crippens D,Camp DM,Robinson TE

更新日期：1993-12-24 00:00:00