Abstract：
:The weakly acidic, cation-exchange resin Bio-Rex 70 was used at a low pH for chromatography of enkephalins and other peptides containing enkephalin sequences. Recoveries of various peptide standards and peptides in adrenal chromaffin cell extracts were greater than 85%. Catecholamines and other substances such as density gradient media are not retained by the resin under the conditions employed. A significant purification of enkephalins and larger peptides containing enkephalin sequences with respect to total protein was also obtained by this method. This chromatographic technique should be useful where a low-cost, preliminary purification of samples containing peptides derived from proenkephalin A is required and may be adaptable to other peptides as well.
journal_name
J Neurosci Methodsjournal_title
Journal of neuroscience methodsauthors
Wilson SPdoi
10.1016/0165-0270(85)90052-4subject
Has Abstractpub_date
1985-10-01 00:00:00pages
155-63issue
2eissn
0165-0270issn
1872-678Xpii
0165-0270(85)90052-4journal_volume
15pub_type
杂志文章abstract：:Neural spike detection and classification, or spike sorting, is the first and a critical step prior to any single unit based neuroscientific studies and applications. A good spike sorter is usually characterized by high detection and classification accuracy, robust to changes in signal-to-noise ratio, objectivity in d...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2012.07.012
更新日期：2012-09-30 00:00:00
abstract：:We used 24 sacral dorsal roots of the rat to analyze amplitude and area changes of biphasic and monophasic compound action potentials (CAPs) at 4 conduction distances. Both the CAPs of the A-fiber and C-fiber were analyzed. The changes were examined with the paired t test and linear regression. All the variables decre...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(93)90064-x
更新日期：1993-03-01 00:00:00
abstract：BACKGROUND:In clinical practice, small myelinated sensory fibers, Aδ-fibers, conveying mainly pain and temperature sensations, cannot be examined with available nerve conduction study techniques. Currently, these fibers can only be examined with experimental or very specialized and not commonly available nerve conducti...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2020.109045
更新日期：2020-12-24 00:00:00
abstract：BACKGROUND:Polarized light imaging (PLI) has evolved into a powerful neuroimaging tool to analyze fiber tracts with submillimeter resolution in microtome sections of postmortem human brain tissue. In PLI polarized light changes its polarization state while passing through birefringent tissue, i.e., myelinated axons, wh...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2013.08.022
更新日期：2013-10-30 00:00:00
abstract：:Following bilateral injection of manganese (Mn) into the rat's motor cortex, electrical stimulation of the cortex is shown to increase the transport, uptake and accumulation of Mn in the corticospinal tract (CST), as assessed by manganese-enhanced magnetic resonance imaging (MEI). T(1)-weighted gradient echo images we...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2006.02.001
更新日期：2006-09-30 00:00:00
abstract：:Obesity-related hypertension is a clinical problem of major significance. The nature of the relationship between blood pressure and body weight has not been elucidated. Recent studies suggest that insulin (and/or insulin resistance) may be involved. An hypothesis is developed, based on the relationship between dietary...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章,评审
doi：10.1016/0165-0270(90)90056-l
更新日期：1990-09-01 00:00:00
abstract：BACKGROUND:The presence of spikes and sharp waves in recordings of epileptic patients contaminates background signal synchronization. When estimating functional connectivity between extended cortical areas, the influence of epileptic spikes in specific areas should be considered; however, this step is sometimes overloo...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2013.11.027
更新日期：2014-02-15 00:00:00
abstract：:The generation and presentation of tactile stimuli presents a unique challenge. Unlike vision and audition, in which standard equipment such as monitors and audio systems can be used for most experiments, tactile stimuli and/or stimulators often have to be tailor-made for a given study. Here, we present a novel tactil...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2006.10.012
更新日期：2007-03-30 00:00:00
abstract：:The electrochemical technique of differential pulse voltammetry (DPV) with micro-biosensors has been used for a number of years to monitor in vivo and in situ changes in the extracellular concentration of cerebral ascorbic acid, as well as that of the metabolites of dopamine (DA) and serotonin (5-HT). We have recently...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(92)90094-t
更新日期：1992-05-01 00:00:00
abstract：BACKGROUND:Evaluation of motor deficits in rodents is mostly restricted to limb motor tests that are often high stressors for the animals. NEW METHOD:To test rodents for orofacial motor impairments in a stress-free environment, we established the pasta gnawing test by measuring the biting noise of mice that eat a piec...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2016.10.006
更新日期：2016-12-01 00:00:00
abstract：:Information concerning the location and distribution of presynaptic neurotransmitter release sites within anatomically labeled axons would be of value for a large number of studies in functional anatomy, development, and plasticity. Here we report a method for localizing presynaptic sites within identified arbors of i...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(99)00145-4
更新日期：2000-01-15 00:00:00
abstract：:Cytochrome c oxidase or mitochondrial respiratory chain complex IV is where over 90% of oxygen is consumed. The relationship between complex IV activity and mitochondrial proteins, which provides a guide to understanding the mechanisms in primary mitochondrial disorders, has been determined by histochemistry (activity...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2009.08.020
更新日期：2009-11-15 00:00:00
abstract：:We describe here an experimental approach designed to aid in the identification of complex brain circuits within the rat corpus striatum. Our aim was to characterize in a single section (i) striatal thalamic afferents, (ii) striatopallidal projection neurons and (iii) striatal local circuit interneurons. To this end, ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(01)00440-x
更新日期：2001-10-15 00:00:00
abstract：:Two-photon laser scan microscopy carries many advantages for work on brain slices and bulk tissue. However, it has very low signal levels compared to conventional fluorescence microscopy. This is disadvantageous in fast imaging applications when photon shot noise is limiting. Working on brain slices with excitation po...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(99)00103-x
更新日期：1999-10-15 00:00:00
abstract：:Images of Golgi impregnated neurons from different laminae of the human and rat dorsal horns were subjected to a quantitative analysis to support the Rexed's laminar scheme in mammals. Four methods of fractal analysis were performed in the proceedings: box-counting, mass-radius, cumulative intersection, and vectorized...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2005.02.009
更新日期：2005-08-15 00:00:00
abstract：:NREM phases of sleep in vertebrates are characterized by slow waves. Crayfish also sleeps while lying on one side on the surface of the water. At this time the numerous spikes on an almost flat base line generated by the brain when alert are replaced by slow waves of 15-20 Hz. In this work, we conducted experiments to...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2007.01.025
更新日期：2007-05-15 00:00:00
abstract：BACKGROUND:There is no method available to simultaneously detect GABA, Glu, Epi, NE, DA, 5-HT and 5-HIAA in mouse hippocampus. NEW METHOD:A rapid and sensitive LC-MS/MS method has been developed for simultaneously measuring seven neurotransmitters in mouse hippocampus. The analytes were detected in positive mode with ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2014.04.004
更新日期：2014-05-30 00:00:00
abstract：:The properties of 4 types of carbon electrodes designed for use as in vivo sensors of easily oxidized species in the mammalian brain have been evaluated in aqueous solutions at physiological pH. The electrodes are formed from a graphite-epoxy mixture, carbon paste, or carbon fibers, and have the geometries of a disk o...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(84)90058-x
更新日期：1984-03-01 00:00:00
abstract：:Vibrotactile stimulation has been used successfully to activate the human somatosensory pathway in functional magnetic resonance imaging (fMRI) experiments. The design and characterization of these devices are of particular interest in frequency discrimination tasks and investigations of the somatopic organization of ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2009.07.018
更新日期：2009-10-30 00:00:00
abstract：:Neuronal activity causes substantial Na+ transients in fine cellular processes such as dendrites and spines. The physiological consequences of such Na+ transients are still largely unknown. High-resolution Na+ imaging is pivotal to study these questions, and, up to now, two-photon imaging with the fluorescent Na+ indi...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2006.01.009
更新日期：2006-09-15 00:00:00
abstract：:Hippocampal slices were obtained from hippocampi of patients with temporal lobe epilepsy or from patients with mass lesions located in the temporal lobe. Hippocampal slices were kept alive in a slice chamber and the anterograde tracer neurobiotin was iontophoretically injected into the granule cell layer of the dentat...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(02)00187-5
更新日期：2002-10-15 00:00:00
abstract：:We describe a method for estimating the average proportion of GABAergic terminal area relative to total nerve terminal area with confocal microscopy. Nerve terminal regions were identified with dual colour immunofluorescence on Vibratome sections with an antibody to synaptophysin (SYN), and GABAergic processes, includ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(99)00163-6
更新日期：2000-01-31 00:00:00
abstract：:Operant animal behavioral tests require the interaction of the subject with sensors and actuators distributed in the experimental environment of the arena. In order to provide user independent reliable results and versatile control of these devices it is vital to use an automated control system. Commercial systems for...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2007.06.020
更新日期：2007-10-15 00:00:00
abstract：INTRODUCTION:Transcranial magnetic stimulation (TMS) is used for assessing the excitability of cortical neurons and corticospinal pathways by determining the subject-specific motor threshold (MT). However, the MT is dependent on the TMS instrumentation and exhibits large variation. We hypothesized that between-subject ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2011.10.004
更新日期：2012-01-30 00:00:00
abstract：:The process of peripheral nerve regeneration has been modeled using 5 populations of mathematical variables to represent the biological activities of Wallerian degeneration, fibrin matrix development, Schwann cell activity, elongating neurites, and neovascularization. The mathematical model provided simulations of ner...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(94)00222-3
更新日期：1995-08-01 00:00:00
abstract：BACKGROUND:The ongoing crisis related to non-medical use of opioids makes it of continued importance to understand the risk factors for opioid addiction, the behavioral and neurobiological consequences of opioid exposure and to seek potential avenues for therapy. Pre-clinical rodent models have been critical to advanci...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2020.108993
更新日期：2021-01-15 00:00:00
abstract：:Aggregates of alpha-synuclein (αSyn) have been described in Parkinson's disease (PD) patients, and recent evidence has suggested that the most toxic αSyn species in PD are small soluble aggregates including oligomers, prefibrils, protofibrils. The physiological function of αSyn is still highly debated, with a possible...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章,评审
doi：10.1016/j.jneumeth.2020.108685
更新日期：2020-05-15 00:00:00
abstract：:A method is described for producing electrolytically sharpened and lacquer-insulated steel microelectrodes and for their attachment to a multibarrel micropipet assembly by light-curing bonding compound. This electrode complex is specially designed for recordings from deep brain structures. It permits the analysis of t...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(88)90007-6
更新日期：1988-04-01 00:00:00
abstract：:Controlled expression of proteins is a key experimental approach to a deeper understanding of the molecular basis of neuronal function. Here we evaluate the HSV-1 (herpes simplex virus) amplicon vector for gene delivery into the brains of living rats. We demonstrate that HSV-1 amplicon vectors expressing enhanced gree...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(02)00262-5
更新日期：2002-12-15 00:00:00
abstract：:Intrinsic signal imaging (ISI) measures changes in light reflectance from the illuminated cortex (intrinsic signals or IS) attributed to various vascular and metabolic sources that, when using illumination in the 600 nm range, appear to co-localize with neuronal activity. Given the multiple sources contributing to the...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(00)00180-1
更新日期：2000-04-15 00:00:00
