Abstract:
:Microdialysis probes were used to measure dopamine in, and to administer glutamate receptor antagonists and agonists to, the striatum of unanesthetized rats. Antagonists used were: kynurenate, 2-amino-5-phosphonovalerate and 6-cyano-7-nitroquinoxaline-2,3-dione. Agonists used were: N-methyl-D-aspartate and kainate. In some rats an additional dialysis probe was implanted in medial forebrain bundle for infusion of tetrodotoxin (10 microM) to block action potential propagation along dopaminergic axons in this pathway. The latter treatment reduced dopamine in striatal dialysate to below detectable levels (less than 0.5 pg). The quantity of dopamine in striatal dialysate was not reduced by the local application of glutamate receptor antagonists. At lower concentrations, the receptor antagonists failed to alter significantly the quantity of dopamine, whereas the highest concentration of each antagonist increased the amount of dopamine in the dialysate. At the highest concentration tested (0.75 mM or 1.0 mM), as well as at a lower concentration (0.1 mM), 2-amino-5-phosphonovalerate and 6-cyano-7-nitroquinoxaline-2,3-dione blocked the dopamine-releasing effects of exogenously applied N-methyl-D-aspartate (1.0 mM) or kainate (0.1 mM), respectively. Thus, concentrations of glutamate receptor antagonists that produced effective pharmacological blockade of the respective receptors had no effect on the basal amount of dopamine in striatal extracellular fluid. Finally, N-methyl-D-aspartate and kainate produced a significant elevation in extracellular dopamine during the infusion of tetrodotoxin into the medial forebrain bundle, indicating that impulse activity in this pathway is not necessary for dopamine release produced by glutamate receptor agonists.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Neurosciencejournal_title
Neuroscienceauthors
Keefe KA,Zigmond MJ,Abercrombie EDdoi
10.1016/0306-4522(92)90248-zkeywords:
subject
Has Abstractpub_date
1992-01-01 00:00:00pages
325-32issue
2eissn
0306-4522issn
1873-7544pii
0306-4522(92)90248-Zjournal_volume
47pub_type
杂志文章相关文献
NEUROSCIENCE文献大全abstract::Chronic Mountain Sickness (CMS) occurs in high-altitude residents with major neurological symptoms such as migraine headaches, dizziness and cognitive deficits. Recent work demonstrated that highlanders have increased intracellular pH (pHi) in their brain cells, perhaps for the sake of adaptation to hypoxemia and help...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2018.02.008
更新日期:2018-04-01 00:00:00
abstract::Similarities in cellular morphology, afferentation, efferentation, and neurotransmitter content between the internal and external parts of the pallidum and the substantia nigra pars reticulata have long been noted. Here we present evidence that the globus pallidus, entopedunucular nucleus and substantia nigra pars ret...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(90)90149-x
更新日期:1990-01-01 00:00:00
abstract::Intrinsic connectivity networks (ICNs) are composed of spatial components and time courses. The spatial components of ICNs were discovered with moderate-to-high reliability. So far as we know, few studies focused on the reliability of the temporal patterns for ICNs based their individual time courses. The goals of thi...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2013.09.009
更新日期:2013-12-19 00:00:00
abstract::Agonist-induced endocytosis and recycling of G protein-coupled receptors contributes to desensitization and resensitization of the receptors. In this study, we have used fluorescence immunohistochemistry, confocal microscopy and digital image analysis to quantify the proportion of receptor in the cytoplasm and on the ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(98)00176-6
更新日期:1998-12-01 00:00:00
abstract::Tg2576 transgenic mice (mice overexpressing the "Swedish" mutation in the human amyloid precursor protein 695) demonstrated a decreased capacity for cell proliferation in the dentate gyrus of the hippocampus compared with non-transgenic littermates at 3 months, 6 months and 9 months of age. Isolation stress induced by...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2004.05.040
更新日期:2004-01-01 00:00:00
abstract::Peripheral neuropathy represents an important complication of diabetes involving a spectrum of structural, functional and biochemical alterations in peripheral nerves. Recent observations obtained in our laboratory have shown that the levels of neuroactive steroids present in the sciatic nerve of rat raised diabetic b...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2009.08.005
更新日期:2009-12-01 00:00:00
abstract::Cerebellar Purkinje neurons have intracellular regulatory systems including Ca2+-binding proteins, intracellular Ca2+ stores, Ca2+-ATPase and Na+-Ca2+ exchanger (NCX) that keep intracellular Ca2+ concentration ([Ca2+]i) in physiological range. Among these, NCX interacts with AMPA receptors, activation of which induces...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2007.01.040
更新日期:2007-04-25 00:00:00
abstract::Intense electrical activity throughout the brain which results from generalized epileptic or kindled seizures is thought to cause persistent and widespread neuronal plastic changes. We have previously reported that stage 5 kindled seizures cause an increase in vasopressin messenger RNA content and nitric oxide synthas...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(96)00521-0
更新日期:1997-04-01 00:00:00
abstract::Population-based studies have demonstrated that children with a history of febrile seizure (FS) perform better than age-matched controls at hippocampus-dependent memory tasks. Here, we report that FSs induce two distinct structural reorganizations in the hippocampus and bidirectionally modify future learning abilities...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2016.01.011
更新日期:2016-03-24 00:00:00
abstract::GABAergic neurons are coextensive with cholinergic neurons in the medial septum-diagonal band complex. Serial sectioning, sequential staining and double immunofluorescence techniques employing antibodies to glutamate decarboxylase and choline acetyltransferase revealed the distribution of these transmitter-specific ne...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(86)90258-7
更新日期:1986-02-01 00:00:00
abstract::Exposure of mice to the anesthetic gas nitrous oxide (N(2)O) produces a marked antinociceptive effect. Protein kinase C is a key regulatory enzyme that may be targeted by general anesthetics. However, a relationship between N(2)O-induced antinociception and protein kinase C has yet to be established. The present study...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2006.02.001
更新日期:2006-06-19 00:00:00
abstract::Organotypic cultures established from the third thoracic ganglion of locust embryo have been used to investigate dopamine receptors. In this in vitro system, neurites emerge directly from the explants and form a dense network around the explants, presenting cell surface freely exposed for experimental labelling. Polyc...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(94)90088-4
更新日期:1994-02-01 00:00:00
abstract::The promotion of angiogenesis is a promising therapeutic strategy for ischemic stroke. Many long noncoding RNAs (lncRNAs) are related to angiogenesis following ischemic stroke. LncRNA small nucleolar RNA host gene 12 (SNHG12) was upregulated in oxygen-glucose deprivation (OGD)-exposed primary brain microvascular endot...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2018.08.029
更新日期:2018-10-15 00:00:00
abstract::Amylin is a member of calcitonin or calcitonin gene-related peptide (CGRP) family. Immunohistochemical study revealed a dense network of amylin-immunoreactive (irAMY) cell processes in the superficial dorsal horn of the mice. Numerous dorsal root ganglion (DRG) and trigeminal ganglion cells expressed moderate to stron...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2009.11.063
更新日期:2010-02-17 00:00:00
abstract::Manganese-enhanced MRI (MEMRI) is a newly developed noninvasive imaging technique of brain activities. The signal intensity of MEMRI reflects cumulative activities of the neurons. To validate the use of MEMRI technique to investigate the neural mechanisms of learning and memory, we tried to map brain areas involved in...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2010.02.027
更新日期:2010-05-05 00:00:00
abstract::Traumatic brain injury (TBI) is a major cause of morbidity and mortality world-wide and can result in persistent cognitive, sensory and behavioral dysfunction. Understanding the time course of TBI-induced pathology is essential to effective treatment outcomes. We induced TBI in rats using an impact acceleration method...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2016.08.018
更新日期:2016-10-15 00:00:00
abstract::The distribution and staining pattern of gamma-aminobutyric acid immunoreactivity have been examined by both light and electron microscopy in the dorsal part of the lateral geniculate nucleus of three reptilian species: the turtle Chinemys reevesi, the lizard Ophisaurus apodus and the snake Vipera aspis. After perfusi...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(92)90254-y
更新日期:1992-01-01 00:00:00
abstract::We used whole-cell patch recording to study 102 local interneurons in the rat dorsal lateral geniculate nucleus in vitro. Input impedance with this technique (607.0+/-222.4 MOhm) was far larger than that measured with sharp electrode techniques, suggesting that interneurons may be more electrotonically compact than pr...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(98)00665-4
更新日期:1999-01-01 00:00:00
abstract::Age-related functional alterations in a variety of neurotransmitter systems result in modulation of interneuronal communications which has some relevance in neurological deficits observed in the aging process. The synergistic interactions between protein kinase and inositol 1,4,5-trisphosphate (insP3)/Ca2+ pathways un...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(95)00298-w
更新日期:1995-12-01 00:00:00
abstract::Nitric oxide synthase is the biosynthetic enzyme for the free radical neurotransmitter nitric oxide. Using an affinity-purified antiserum, nitric oxide synthase was found to be localized to peripheral ocular nerve fibers, related cranial ganglia, and the retina of the rat. In the eye, nitric oxide synthase-like immuno...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(93)90393-t
更新日期:1993-05-01 00:00:00
abstract::Growing evidence suggests that non-N-methyl-D-aspartate receptor activation may contribute to neuronal death in both acute and chronic neurological diseases. The intracellular processes that mediate this form of neuronal death are poorly understood. We have previously characterized a model of kainic acid neurotoxicity...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(96)00326-0
更新日期:1996-12-01 00:00:00
abstract::The location of sympathetic preganglionic neurons (SPN) in the spinal cord of the reeler mouse mutant is abnormal. Instead of their normal location in the intermediolateral column, the majority of SPN in the reeler cluster around the central canal. To determine whether ectopically located SPN in the reeler form approp...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(02)00945-4
更新日期:2003-01-01 00:00:00
abstract::In the present study, we investigated whether endoplasmic reticulum (ER) stress is associated with neuronal- and astroglial-death in the hippocampus using LiCl-pilocarpine-induced status epilepticus (SE) rat model. Glucose-related protein (GRP) 78 and protein disulfide isomerase (PDI) expressions were transiently incr...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2015.08.061
更新日期:2015-10-29 00:00:00
abstract::The aim of the present study was to investigate the existence and distribution of neuropeptide Y receptor subtypes in various regions of the normal human brain using the peptide YY derivative receptor probes, [125I][Leu31,Pro34]polypeptide YY/Y1 and [125I]polypeptide YY(3-36)/Y2, in addition to the non-selective ligan...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(96)00639-2
更新日期:1997-07-01 00:00:00
abstract::The mechanisms involved in morphine tolerance are poorly understood. It was reported by our group that calcitonin gene-related peptide (CGRP)-like immunoreactivity (IR) was increased in the spinal dorsal horn during morphine tolerance [Ménard et al. (1996) J. Neurosci. 16, 2342-2351]. More recently, we observed that i...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(02)00452-9
更新日期:2002-01-01 00:00:00
abstract::The tachykinin peptide substance P (SP) is expressed by many interneurons and some projection neurons in the superficial dorsal horn of the spinal cord. We have recently shown that SP-expressing excitatory interneurons in lamina II correspond largely to a morphological class known as radial cells. However, little is k...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2020.06.038
更新日期:2020-12-01 00:00:00
abstract::Amyotrophic Lateral Sclerosis (ALS) is a neurodegenerative disease that affects upper and lower motor neurons and leads to death a few years after symptom onset. Despite its high morbidity and mortality, its underlying pathogenic mechanisms still remain poorly understood. Although there is increasing evidence for sign...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2020.07.047
更新日期:2020-12-01 00:00:00
abstract::In urethane-anaesthetised artificially ventilated Sprague-Dawley rats, bilateral microinjection of the divalent cation nickel chloride (Ni(2+); 50 mM, 50 nl) into the rostral ventrolateral medulla elicited a dramatic inhibition of splanchnic sympathetic nerve activity (-44+/-6%) and a marked depressor response (-35+/-...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(02)00705-4
更新日期:2003-01-01 00:00:00
abstract::Nerve injuries cause pain, paralysis and numbness that can lead to major disability, and newborns often sustain nerve injuries during delivery that result in lifelong impairment. Without a pharmacologic agent to enhance functional recovery from these injuries, clinicians rely solely on surgery and rehabilitation to tr...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2014.10.005
更新日期:2015-01-22 00:00:00
abstract::Monoclonal antibodies SMI-31 and 150 recognize phosphorylation epitopes on microtubule-associated protein 1B that have been shown to be developmentally down-regulated in the nervous system. We have used these antibodies to establish changes in the pattern of expression of their epitopes on microtubule-associated prote...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(96)00078-4
更新日期:1996-07-01 00:00:00