Abstract：
:A sensitive procedure for simultaneous determination of in vivo rates of tryptophan hydroxylation and levels of serotonin (5-HT) in discrete rat brain nuclei is described. Rates of tryptophan hydroxylation are estimated by 5-hydroxytryptophan (5-HTP) accumulation following l-aromatic amino acid decarboxylase inhibition by R04-4602/1. 5-HTP is separated from 5-HT by liquid cation exchange after which both 5-HTP and 5-HT are measured by a sensitive radioenzymatic assay. Following decarboxylase inhibition, 5-HTP accumulates over 30 min in 6 brain nuclei examined, with negligible levels of 5-HTP being measured in the absence of decarboxylase inhibition. 5-HT levels do not change significantly up to 45 min after decarboxylase inhibition. Comparison of rates of tryptophan hydroxylation determined in 12 different microdissected rat brain areas reveals a greater rate of 5-HT biosynthetic activity in raphe nuclei containing 5-HT cell bodies than in nuclei containing 5-HT terminals. Pretreatment with para-chlorophenylalanine markedly reduces both 5-HTP accumulation and 5-HT levels in the nucleus raphe dorsalis. With this procedure quantities as little as 10 pg of both 5-HTP and 5-HT can be measured, allowing estimation of in vivo serotonin biosynthesis in microgram quantities of brain tissue.
journal_name
J Neurosci Methodsjournal_title
Journal of neuroscience methodsauthors
Long JB,Youngblood WW,Kizer JSdoi
10.1016/0165-0270(82)90015-2subject
Has Abstractpub_date
1982-07-01 00:00:00pages
45-58issue
1-2eissn
0165-0270issn
1872-678Xpii
0165-0270(82)90015-2journal_volume
6pub_type
杂志文章abstract：:Trace amounts of [14C]2-deoxyglucose (2-DG) were used to detect regions of the brainstem involved in forelimb stepping in thalamic and low spinal cats. Under ether anesthesia, cats were transected at the stereotaxic A12 level and T10 segment. Two hours later, 50 microCi/kg of 2-DG was infused i.v. and one of 4 procedu...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(87)90124-5
更新日期：1987-10-01 00:00:00
abstract：:Transplantation of human fetal ventral mesencephalon (VM) to Parkinsonian patients has shown beneficial effects in several clinical trials. However, further improvements in the transplantation technique are needed. Delayed surgery, i.e., the in vitro maintenance of the tissue prior to transplantation would present sev...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(94)90160-0
更新日期：1994-09-01 00:00:00
abstract：:An improved method using HRP for visualizing axons in whole-mount preparations is described. Application of this method to preparations of regenerating frog peripheral nerves maintained in organ culture was used to show that regeneration following nerve crush begins after about 3 days. ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(92)90110-y
更新日期：1992-08-01 00:00:00
abstract：:Subcortical white matter stroke is a common stroke subtype but has had limited pre-clinical modeling. Recapitulating this disease process in mice has been impeded by the relative inaccessibility of the subcortical white matter arterial supply to induce white matter ischemia in isolation. In this report, we detail a su...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2009.03.017
更新日期：2009-06-15 00:00:00
abstract：:Parkinson's disease (PD) has a long prodromal period that precedes the appearance of typical motor symptoms. This phase is extremely heterogeneous and is characterized by a wide range of non-motor alterations including REM sleep behavior disorders, constipation, olfactory and urinary dysfunctions. The increasing clini...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章,评审
doi：10.1016/j.jneumeth.2020.108801
更新日期：2020-08-01 00:00:00
abstract：:Implantable neural micro-electrode arrays have the potential to restore lost sensory or motor function to many different areas of the body. However, the invasiveness of these implants often results in scar tissue formation, which can have detrimental effects on recorded signal quality and longevity. Traditional histol...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2013.06.001
更新日期：2013-08-15 00:00:00
abstract：BACKGROUND:Mixed frequency and phase coding (FPC) can achieve the significant increase of the number of commands in steady-state visual evoked potential-based brain-computer interface (SSVEP-BCI). However, the inconsistent phases of the SSVEP over channels in a trial and the existence of non-contributing channels due t...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2018.04.001
更新日期：2018-07-01 00:00:00
abstract：:A method is described enabling the recording of synaptic currents from an isolated interganglionic interneurone in the central nervous system of the cockroach, Periplaneta americana, using an oil-gap recording system. The circuitry contains a Wheatstone bridge in which the preparation is the unknown resistance. Using ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(88)90146-x
更新日期：1988-09-01 00:00:00
abstract：:Thermal laser stimulation of the skin is an efficient exploratory tool to characterize the nociceptive system. In the present study, finite element simulations are done to calculate the intra-cutaneous spatio-temporal temperature profiles following the delivery of such laser stimuli. The proposed computer-aided modeli...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2013.11.010
更新日期：2014-02-15 00:00:00
abstract：BACKGROUND:Saccades are rapid eye movements used to gather information about a scene which requires both action and perception. These are usually studied separately, so that how perception influences action is not well understood. In a dual task, where the subject looks at a target and reports a decision, subtle change...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2014.05.010
更新日期：2014-07-30 00:00:00
abstract：BACKGROUND:It has previously been reported that EEG sigma (10-15 Hz) activity during sleep exhibits infraslow oscillations (ISO) with a period of 50 s. However, a detailed analysis of the ISO of individually identified sleep spindles is not available. NEW METHOD:We investigated basic properties of ISO during baseline ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2018.12.002
更新日期：2019-03-15 00:00:00
abstract：:The terminal branches of motoneurons can be excited by electrical current pulses delivered via needles inserted intramuscularly. Observations are reported which indicate that tungsten semi-microelectrodes suitably positioned in a muscle belly can excite antidromically a large proportion of the alpha-motoneurons of tha...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(83)90053-5
更新日期：1983-05-01 00:00:00
abstract：:Triphasic electrical stimulation pulses with an adjustable phase amplitude ratio (PAR) can reduce stimulus artifacts in electrically evoked compound actions potentials (ECAPs) recording in the cochlea (see companion paper Bahmer and Baumann, submitted for publication). The present study describes the application of tr...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2011.12.006
更新日期：2012-03-30 00:00:00
abstract：:Background muscle activity (BGR) exerts a strong influence on stretch reflex amplitudes. While it is considered important to correct for this influence, which method best able to eliminate the effects of BGR remains unknown. We have therefore compared one previously described and one novel correction method which resp...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(93)90152-h
更新日期：1993-02-01 00:00:00
abstract：:The LTP Program is a stimulation, acquisition and on-line analysis program for studying long-term potentiation (LTP), long-term depression (LTD), and stimulus-evoked synaptic responses in general. The program is freely available from the website: www.ltp-program.com. It is a 32-bit DOS program that runs on Windows 3/9...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(01)00374-0
更新日期：2001-07-15 00:00:00
abstract：:A high-speed voltammetric system was designed and tested for dual measurement of dopamine (DA) and serotonin (5-HT) at 250-ms intervals. First, an anodic-cathodic square-wave pulse was delivered to activate the electrode (carbon fiber, 7 microm in diameter), then DA and 5-HT oxidation currents (current intensity) were...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(99)00056-4
更新日期：1999-07-15 00:00:00
abstract：:Here we suggest that endoplasmic reticulum (ER)-stress may be induced following aberrant rhodopsin accumulation in photoreceptors in explanted rat retinas. Rhodopsin accumulation was accompanied by increased phosphorylation of pancreatic ER-kinase and eukaryotic initiator factor 2α as well as increased levels of C/EBP...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2011.01.030
更新日期：2011-04-15 00:00:00
abstract：:We describe a novel method for retrogradely labeling specific neuronal populations using voltage-sensitive dyes. Styryl dyes were injected into the ventral roots of the isolated embryonic chick spinal cord. After waiting several hours, the dye labeled motoneurons and autonomic preganglionic neurons. Neuronal cell bodi...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(96)00108-2
更新日期：1996-12-28 00:00:00
abstract：BACKGROUND:Tinnitus, head and ear noise, is due to maladaptive plastic changes in auditory and associated neural networks. Tinnitus has been traditionally managed through the use of sound to passively mask or facilitate habituation to tinnitus, a process that may take 6-12 months. NEW METHOD:A game-based perceptual tr...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2015.04.002
更新日期：2015-07-15 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：:The Barnes maze is a visuo-spatial learning and memory test originally designed for use with rats, and later adapted for use with mice. The Barnes maze design and test procedure vary across studies using mice, but the effects of variation in Barnes maze design and test procedure on learning and memory in mice have not...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2011.09.027
更新日期：2012-01-30 00:00:00
abstract：:1321N1 astrocytoma cells are frequently used to analyze stimulus-induced intracellular signaling. These experiments require genetic manipulation of the cells and several chemical and physical methods have been employed in the past. Recently, microporation has been suggested as the best method to transfect 1321N1 astro...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2012.02.016
更新日期：2012-01-01 00:00:00
abstract：:Intrathecal (IT) administration is an important route of drug delivery, and its modelling in a large animal species is of critical value. Although domestic swine is the preferred species for preclinical pharmacology, no minimally invasive method has been established to deliver agents into the IT space. While a "blind"...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2013.03.006
更新日期：2013-05-30 00:00:00
abstract：:Transcranial Electrical Stimulation (tES) encompasses all methods of non-invasive current application to the brain used in research and clinical practice. We present the first comprehensive and technical review, explaining the evolution of tES in both terminology and dosage over the past 100 years of research to prese...
journal_title：Journal of neuroscience methods
pub_type： 历史文章,杂志文章,评审
doi：10.1016/j.jneumeth.2013.07.016
更新日期：2013-10-15 00:00:00
abstract：:A technique has been developed which allows extracellular recording from single neurons in the spinal cord of physiologically intact, awake, drug-free, restrained cats. The technique involves the surgical placement, under general anesthesia, of a stainless steel recording chamber which has a rectangular opening in its...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/0165-0270(85)90012-3
更新日期：1985-02-01 00:00:00
abstract：:Several studies have reported on the use of primary neural cells transduced by adenoviral vectors as donor cells in neurotransplantation. In the present investigation, we examined whether adenoviral vector-mediated gene transfer could be used to introduce and express a foreign gene in solid neural transplants of fetal...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/s0165-0270(96)00131-8
更新日期：1997-01-01 00:00:00
abstract：:Zebra finches have been widely used to study neurobiology underlying vocal development. Because only male zebra finches learn song, efficient developmental use of these animals requires early determination of sex at ages that precede maturation of secondary sex characteristics. We have developed a sex determination me...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2007.04.007
更新日期：2007-08-15 00:00:00
abstract：BACKGROUND:Certain inherited progressive neurodegenerative disorders, such as spinocerebellar ataxia (SCA), affect neurons in large areas of the central nervous system (CNS). The selective expression of disease-causing and therapeutic genes in susceptible regions and cell types is critical for the generation of animal ...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2013.12.004
更新日期：2014-02-15 00:00:00
abstract：:Myo-inositol (mIns) is a marker of glial cells proliferation and has been shown to increase in early Alzheimer's disease (AD) pathology. mIns exhibits a concentration dependent chemical-exchange-saturation-transfer (CEST) effect (MICEST) between its hydroxyl groups and bulk water protons. Using the endogenous MICEST t...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2012.09.025
更新日期：2013-01-15 00:00:00
abstract：:At any point in time, net protein phosphorylation represents the contribution of protein kinase and protein phosphatase activities affecting a specific site on a given substrate. Preservation of phosphorylated proteins in neural tissues has traditionally included flash-freezing or fresh tissue processing following tis...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
doi：10.1016/j.jneumeth.2003.12.006
更新日期：2004-05-30 00:00:00
