Abstract:
:The recognition molecule myelin-associated glycoprotein is expressed by oligodendrocytes, the myelinating cells of the central nervous system. The myelin-associated glycoprotein gene gives rise to two alternatively spliced transcript variants ("early" and "late" message) which are developmentally regulated. In this study, using mice, we investigated whether both transcripts can be expressed in an individual oligodendrocyte or whether different oligodendrocyte populations exist expressing either one or the other myelin-associated glycoprotein messenger RNA. For this purpose the cytoplasmic RNA content of single oligodendrocytes derived either from cultures of embryonic mouse brain or from the corpus callosum murine slice preparation was harvested during patch-clamping in the whole-cell recording mode by applying negative pressure to the patch pipette. After reverse transcription, cDNA fragments were amplified by the polymerase chain reaction and analysed by agarose gel electrophoresis and restriction enzyme maps. Expression of myelin-associated glycoprotein transcripts could first be detected in those oligodendrocytes which already had acquired a more mature developmental stage. This stage could electrophysiologically be characterized by the dominance of passive K+ currents. In addition to oligodendrocytes expressing only the late or the early transcript, many cells were found expressing simultaneously both transcripts with varying levels. The myelin-associated glycoprotein transcript expression is therefore found to be developmentally regulated at a stage when oligodendrocytes have already acquired the channel properties of the adult.
journal_name
Neurosciencejournal_title
Neuroscienceauthors
Kirchhoff F,Ohlemeyer C,Kettenmann Hdoi
10.1016/s0306-4522(96)00586-6subject
Has Abstractpub_date
1997-05-01 00:00:00pages
561-70issue
2eissn
0306-4522issn
1873-7544pii
S0306452296005866journal_volume
78pub_type
杂志文章相关文献
NEUROSCIENCE文献大全abstract::Arc (also termed activity-regulated cytoskeleton-associated protein or Arg3.1), is an effector immediate early gene whose upregulation has been demonstrated during events of synaptic plasticity. In the present study, the possibility that Arc would be specifically upregulated in rats during the acquisition of a quickly...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(01)00605-4
更新日期:2002-01-01 00:00:00
abstract::The distribution of [125I]omega-conotoxin GVIA binding sites, the putative voltage-sensitive calcium channels, was studied by an autoradiographic method in the rat brain. The toxin binding sites were distributed throughout the brain in a highly heterogeneous manner. The highest density of the binding sites was observe...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(89)90089-4
更新日期:1989-01-01 00:00:00
abstract::Activation of muscarinic acetylcholine receptors (mAChRs) inhibits spinal nociceptive transmission by potentiation of GABAergic tone through M(2), M(3), and M(4) subtypes. To study the signaling mechanisms involved in this unique mAChR action, GABAergic spontaneous inhibitory postsynaptic currents (sIPSCs) of lamina I...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2008.11.039
更新日期:2009-02-18 00:00:00
abstract::The effects of steady iontophoretic applications of serotonin on the spontaneous discharge and on the excitatory responses induced in deep cerebellar nuclei neurons by iontophoretic pulse applications of L-glutamate, L-aspartate, N-methyl-D,L-aspartate and quisqualate were studied in rat cerebellar slices maintained i...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(87)90072-8
更新日期:1987-11-01 00:00:00
abstract::Experiment 1 investigated the effects of catecholaminergic deafferentation or cell body lesions of the amygdala on fear conditioning to explicit and contextual cues. Bilateral infusions of quinolinic acid mainly damaged neurons within the basolateral region of the amygdala. 6-Hydroxydopamine infusions at the same coor...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(91)90379-3
更新日期:1991-01-01 00:00:00
abstract::Activation of neurokinin-1 (NK-1) receptors in the rostral ventromedial medulla (RVM) can facilitate pain transmission in conditions such as inflammation, and thereby contribute to hyperalgesia. Since blockade of NK-1 receptors in the RVM can attenuate hyperalgesia produced by prolonged inflammation, we examined the r...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2012.08.029
更新日期:2012-11-08 00:00:00
abstract::The electrical activity of locus coeruleus neurons was investigated during cortical spreading depression in urethane-anaesthetized rats. Cortical spreading depression was induced by a direct application of 1-3 M KCl solution to the surface of the cerebral cortex. The occurrence of cortical spreading depression was ass...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(96)00679-3
更新日期:1997-06-01 00:00:00
abstract::Postoperative cognitive dysfunction (POCD) is an important complication following major surgery and general anesthesia in older patients. However, the etiology of POCD remains largely to be determined. It is unknown how surgical stress and psychological stress affect the postoperative learning and memory function in g...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2016.02.015
更新日期:2016-04-21 00:00:00
abstract::Glial cell line-derived neurotrophic factor (GDNF) signals through multisubunit receptor complex consisting of RET tyrosine kinase and a glycosylphosphatidylinositol-anchored coreceptor called GDNF family receptor alpha1 (GFRalpha1). In the current study, we cloned a human SEP1 gene as a GDNF-inducible gene using huma...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(03)00487-1
更新日期:2003-01-01 00:00:00
abstract::Thrombin plays important roles in the pathology of intracerebral hemorrhage (ICH). The recruitment of activated microglia, accompanied by thrombin-induced phosphorylation of the mitogen-activated protein kinase (MAPK) family, contributes to ICH-associated neuron loss. Here we investigated the possibility that sesamin,...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2012.11.057
更新日期:2013-03-01 00:00:00
abstract::Neuronal activity associated with visual processing of an unfamiliar face gradually diminishes when it is viewed repeatedly. This process, known as repetition suppression (RS), is involved in the acquisition of familiarity. Current models suggest that RS results from interactions between visual information processing ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2016.03.059
更新日期:2016-06-21 00:00:00
abstract::Animal studies have revealed that chronic stress shifts cognitive strategies from the flexible goal-directed action to the simple and rigid habit action. In addition, stress-induced atrophy in the prefrontal cortex and dorsomedial striatum which are involved in the goal-directed action and hypertrophy of the dorsolate...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2011.07.014
更新日期:2011-10-13 00:00:00
abstract::Intense natural or electrical stimulation of afferents from the toes or the heel results in prolonged changes in the excitability of the heel withdrawal reflex pathway in the rabbit. This study has investigated the roles played by tachykinin NK1 receptors in mediating these effects. Reflexes were evoked by electrical ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(94)00608-8
更新日期:1995-06-01 00:00:00
abstract::The purpose of the present study was to test the respective roles of the intrinsic neurons and of the catecholaminergic fibers in two behaviors elicited by electrical stimulation of the lateral hypothalamus, intracranial self-stimulation and the increase in locomotor activity produced by noncontingent stimulation. One...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(88)90261-8
更新日期:1988-05-01 00:00:00
abstract::Neural injury triggers changes in the expression of a large number of gene families. Particularly interesting are those encoding proteins involved in the generation, propagation or restoration of electric potentials. The expression of the Na+, K+-ATPase subunit isoforms (alpha, beta and gamma) was studied in dorsal ro...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2004.08.041
更新日期:2004-01-01 00:00:00
abstract::Previous attempts to reproduce striatonigral degeneration, the core pathology underlying Parkinsonism in multiple system atrophy, have been impeded by interactions in the neurotoxins used to replicate striatal and nigral degeneration in rodents. To overcome these interactions, we have developed a new model of striaton...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(02)00401-3
更新日期:2002-01-01 00:00:00
abstract::Electrophysiological and anatomical studies were carried out in parallel to investigate the ability of lateral geniculate body neurons to regenerate axons damaged by the removal of the primary visual cortex and to innervate graft neurons functionally after transplantation of fetal neocortical tissue to a lesion cavity...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(94)90278-x
更新日期:1994-06-01 00:00:00
abstract::The widespread distribution of neurons containing alpha-atrial natriuretic polypeptide-like immunoreactivity in the rat brain was demonstrated using radioimmunoassay and immunohistochemistry in conjunction with specific antisera. The highest concentrations of alpha-atrial natriuretic polypeptide-like immunoreactivity ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(85)90190-3
更新日期:1985-11-01 00:00:00
abstract::The effects of steroid hormones on glutamate neurotoxicity were examined in cultured spinal cord neurons. The extent of neuronal damage, produced by glutamate exposure for 15 min, was estimated based on the activity of lactate dehydrogenase released from degenerated neurons to the media during 24 h of post-exposure in...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(93)90513-f
更新日期:1993-07-01 00:00:00
abstract::Hypocretin/orexin (Hcrt/Orx) and melanin concentrating hormone (MCH) are peptides contained in overlapping cell groups of the lateral hypothalamus and commonly involved in regulating sleep-wake states and energy balance, though likely in different ways. To see if these neurons are similarly or differentially modulated...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2004.10.032
更新日期:2005-01-01 00:00:00
abstract::l-glutamate, an umami taste substance, is a key molecule coupled to a food intake signaling pathway. Furthermore, recent studies have unveiled new roles for dietary glutamate on gut-brain axis communication via activation of gut glutamate receptors and subsequent vagus nerve. In the present study, we mapped activation...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2011.09.003
更新日期:2011-11-24 00:00:00
abstract::It is well established that chronic food restriction enhances sensitivity to the rewarding and motor-activating effects of abused drugs. However, neuroadaptations underlying these behavioral effects have not been characterized. The purpose of the present study was to explore the possibility that food restriction produ...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(03)00227-6
更新日期:2003-01-01 00:00:00
abstract::Experiments that demonstrated a role for the substantia nigra in eye movements have played an important role in our understanding of the function of the basal ganglia in behavior more broadly. In this review we explore more recent experiments that extend the role of the substantia nigra pars reticulata from a simple g...
journal_title:Neuroscience
pub_type: 杂志文章,评审
doi:10.1016/j.neuroscience.2011.08.026
更新日期:2011-12-15 00:00:00
abstract::Lack of dystrophin in mdx mice leads to muscle fibre degeneration followed by the formation of new myofibres. This degeneration-regeneration event occurs in clusters. It is accompanied by inflammation and remodelling of the intramuscular terminal nerve fibres. Since the growth-associated protein B-50/GAP-43 has been s...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/s0306-4522(96)83017-x
更新日期:1996-02-01 00:00:00
abstract::The effect of capsaicin on voltage-activated calcium currents was investigated in voltage-clamped somata of cultured adult rat dorsal root ganglion neurons. About half the neurons studied were sensitive to capsaicin, which induced an inward current at negative membrane potentials accompanied by an increase in membrane...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(91)90137-d
更新日期:1991-01-01 00:00:00
abstract::Anhedonia is a core symptom of clinical depression. Two brain neuropeptides that have been implicated in anhedonia symptomology in preclinical depression models are dynorphin and orexin; which are concentrated along lateral hypothalamic dopamine reward pathways. These affect regulating neuropeptides modulate each othe...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2012.05.033
更新日期:2012-08-30 00:00:00
abstract::Neuronal differentiation is a critical developmental process that determines accurate synaptic connection and circuit wiring. A wide variety of naturally occurring compounds have been shown as promising drug leads for the generation and differentiation of neurons. Here we report that a diarylheptanoid from the plant A...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/j.neuroscience.2015.07.019
更新日期:2015-09-10 00:00:00
abstract::The purpose of the present study was to identify processes of plasticity in the receptive field of neurosecretory neurons of the supraoptic nucleus during hibernation in the hedgehog, in order to correlate them with the increased neurosecretory activity observed in this nucleus during this annual period. Using the Rap...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(89)90396-5
更新日期:1989-01-01 00:00:00
abstract::One of the most replicated findings has been that hippocampus volume is decreased in patients with major depressive disorder (MDD). Recent volumetric magnetic resonance imaging (MRI) studies suggest that localized differences in hippocampal volume may be more prominent than global differences. Preclinical and post-mor...
journal_title:Neuroscience
pub_type: 杂志文章,评审
doi:10.1016/j.neuroscience.2015.04.047
更新日期:2015-11-19 00:00:00
abstract::Neurons of the efferent vestibular system were investigated in the cat using retrograde axonal transport of horseradish peroxidase and fluorescent retrograde double labelling techniques. The number of efferent neurons was clearly higher than previously reported. A three dimensional reconstruction of the location of th...
journal_title:Neuroscience
pub_type: 杂志文章
doi:10.1016/0306-4522(84)90200-8
更新日期:1984-04-01 00:00:00