Abstract:
:The substantia nigra pars reticulata (SNr) receives both inhibitory GABAergic and excitatory glutamatergic afferents from diverse origins. Ischemic injury to the striatum and/or the globus pallidus causes delayed transneuronal death of the SNr neurons, in the course of which neuronal disinhibition induced by loss of GABAergic inputs is supposed to trigger a lethal hypermetabolic process. In the in vivo experiment presented herein, we clarified the role of glutamatergic action via the N-methyl-D-aspartate receptor in this cell death process. Continuous intraventricular infusion (0.5 microliter/h) of the N-methyl-D-aspartate receptor antagonist MK-801 (1000 micrograms/ml), or of saline (control group) was initiated 24 h after 2 h of transient middle cerebral artery (MCA) occlusion in rats, by which massive ischemic injury was produced in the striatopallidal regions. The measured rectal temperature was not significantly altered in the MK-801-infused and in the control rats throughout the time period examined. The rats were killed at 15 days after MCA occlusion. The volume of the focal ischemic infarction of the MK-801-infused group did not significantly differ from that of controls. Also, MK-801-infusion did not significantly ameliorate the nigral atrophy subsequent to MCA occlusion. In association with a marked depletion of GABAergic afferent fibers, neuronal cell number in the ipsilateral SNr was significantly decreased in the control group. In contrast, the neuronal cell loss in the nucleus was completely prevented in the MK-801-infusion group. The data suggested that withdrawal of GABAergic inputs may cause a severe imbalance between excitation and inhibition of the SNr neurons and may eventually result in neurotoxicity mediated by the N-methyl-D-aspartate receptor. Suppression of glutamatergic excitatory effects by suitable drugs may be a reasonable therapy for the transneuronal death of the SNr neurons.
journal_name
Brain Resjournal_title
Brain researchauthors
Yamada K,Goto S,Yoshikawa M,Okamura A,Ushio Ydoi
10.1016/s0006-8993(96)01052-9subject
Has Abstractpub_date
1996-12-16 00:00:00pages
233-9issue
1-2eissn
0006-8993issn
1872-6240pii
S0006-8993(96)01052-9journal_volume
743pub_type
杂志文章相关文献
BRAIN RESEARCH文献大全abstract::The role of subcortical input and/or output pathways in the development of cortical networks was examined in organotypic tissue cultures derived from neonatal mouse brain. Comparisons were made between cultures of cerebral neocortex grown with large amounts of subcortical tissue and those that were completely isolated...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(86)91631-8
更新日期:1986-02-19 00:00:00
abstract::Ibotenic acid lesions of the vertical limb of the diagonal band of Broca (VDB) in marmosets produced significant depletions in choline acetyltransferase (ChAT) activity and a decrease in acetylcholinesterase (AChE) staining in the hippocampal formation and entorhinal cortex (to which the cholinergic neurones of the VD...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(88)90348-4
更新日期:1988-07-19 00:00:00
abstract::A central component of Attention Deficit Hyperactivity Disorder (ADHD) is increased distractibility in response to visual and auditory stimuli, which is linked to the superior colliculus (SC). Furthermore, there is now mounting evidence of altered collicular functioning in ADHD and it is proposed that a hyper-responsi...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2015.09.038
更新日期:2015-12-10 00:00:00
abstract::The neurotoxic effects produced by ibotenic acid (IA) induced chemical lesions of the central nervous system (CNS) cholinergic system were examined on the opioid peptidergic system in adult rats. Forebrain cholinergic systems were bilaterally lesioned by the infusion of IA (1 or 5 micrograms/site) into the nucleus bas...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(92)90668-y
更新日期:1992-02-07 00:00:00
abstract::Music is an intriguing stimulus widely used in movies to increase the emotional experience. However, no brain imaging study has to date examined this enhancement effect using emotional pictures (the modality mostly used in emotion research) and musical excerpts. Therefore, we designed this functional magnetic resonanc...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2005.12.065
更新日期:2006-02-23 00:00:00
abstract::The spinal cord dorsal horn contains neural mechanisms which can greatly facilitate pain. We have recently shown that 'illness'-inducing agents, such as intraperitoneally administered lipopolysaccharide (LPS; bacterial endotoxin), can produce prolonged hyperalgesia. This hyperalgesic state is mediated at the level of ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(94)91948-8
更新日期:1994-11-21 00:00:00
abstract::The pattern of generation of neurons in the albino rat superior colliculus has been studied in adult and fetal material. Neurons are generated between embryonic days 12 to 17, with rostrolateral colliculus in advance of caudomedial parts. More of the cells contributing to the deeper layers are generated early, while m...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(79)90004-0
更新日期:1979-03-23 00:00:00
abstract::The present study examined the antioxidant effect of phytic acid on iron (II)-enhanced hydroxyl radical (*OH) generation induced by 1-methyl-4-phenylpyridinium ion (MPP(+)) in the extracellular fluid of rat striatum. Rats were anesthetized, and sodium salicylate in Ringer's solution (0.5 nmol/microl/min) was infused t...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(03)02830-0
更新日期:2003-07-18 00:00:00
abstract::Whole-cell voltage-clamp techniques were used to study the comparative effects of delta-9-tetrahydrocannabinol (THC) and its principal metabolite, 11-hydroxy-delta-9-tetrahydrocannabinol (11-OH-THC), on the voltage-gated sodium current in neuroblastoma cells. The parent compound markedly depressed the inward sodium cu...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(91)91239-w
更新日期:1991-09-27 00:00:00
abstract::The present study combined masked priming with electrophysiological recordings to investigate orthographic priming effects with nonword targets. Targets were pronounceable nonwords (e.g., STRENG) or consonant strings (e.g., STRBNG), that both differed from a real word by a single letter substitution (STRONG). Targets ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2011.02.050
更新日期:2011-04-22 00:00:00
abstract::After treatment with pentylenetetrazol (PTZ), cholecystokinin (CCK) mRNA and CCK-like immunoreactivity (CCK-LI) levels were determined in rat hippocampus and cortex at different time points. In the temporal cortex treatment with 60 mg/kg PTZ, i.p., induced increases of CCK mRNA and CCK-LI levels at 2 days after the in...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(97)01179-7
更新日期:1998-01-01 00:00:00
abstract::To investigate the reversibility of neuronal functions during deep and mild hypothermia, we have examined changes in membrane properties of pyramidal neurons of the CA3 region of hippocampal slices during cooling and rewarming (8 approximately 37 degrees C) of the perfusion medium. Hypothermia reduced the excitatory p...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(00)03285-6
更新日期:2001-03-02 00:00:00
abstract::In order to establish possible stimulatory effects of increasing plasma concentrations of substance P (SP) on the arginine vasopressin (AVP) and/or oxytocin (OT) secretion, successively increasing doses of SP(0.5, 1 and 1.5 pmol/kg-1/min-1; each dose for 20 min) were infused in 7 normal men. Plasma AVP and OT levels w...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(92)90387-o
更新日期:1992-01-08 00:00:00
abstract::Brain serotonin (5-HT) uptake sites were quantitated, by saturation binding of [3H]paroxetine, in 10 brain regions from 22 suicide victims and 20 control subjects. Suicide victims were restricted to those subjects in whom a firm retrospective diagnosis of depression was established and who had not recently been prescr...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(90)90244-6
更新日期:1990-08-27 00:00:00
abstract::Excessive stimulation of neurons by glutamic acid initiates a destructive cascade of ion fluxes, cellular swelling, and death. Homeostatic mechanisms which rectify these disturbances depend largely upon transmembrane ion gradients maintained by Na+,K(+)-ATPase (NaP). We proposed that the neurotoxicity of glutamate is ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(92)90982-f
更新日期:1992-09-18 00:00:00
abstract::It is suggested that altered neuroplasticity contributes to the pathophysiology of schizophrenia and antipsychotics may exhibit some of their therapeutic efficacies by improving neurogenesis and/or proliferation of neural progenitors. The aim of this study is to investigate whether chronic antipsychotics treatment aff...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2017.09.006
更新日期:2017-12-01 00:00:00
abstract::Previously, we had shown that ammonium chloride (ammonia)-induced accumulation of cyclic GMP in the microdialysates of rat striatum is blocked by taurine. In this study, coinfusion with taurine of a GABAA receptor antagonist bicuculline or a glycine receptor antagonist strychnine (100 microM each), separately, restore...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2005.02.066
更新日期:2005-05-10 00:00:00
abstract::Cell bodies and dendrites of neurones in the thalamic reticular nucleus projecting to the dorsal lateral geniculate nucleus in adult albino rats, were labelled by retrograde transport of horseradish peroxidase (HRP). In the same animals the terminals of cortico-reticular axons were made identifiable by ipsilateral vis...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(81)90685-5
更新日期:1981-02-23 00:00:00
abstract::With the increasing worldwide incidence of Alzheimer's disease (AD), there is a critical need for the discovery of more effective diagnostic methods. However, development of diagnostic tools in AD has been hindered by obstacles such as the absence of exact biomarkers. Apoptosis caused by amyloid-β (Aβ) plays an import...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2016.06.041
更新日期:2016-09-01 00:00:00
abstract::In addition to synaptic remodeling, formation of new neurons is increasingly acknowledged as an important cue for plastic changes in the central nervous system. Whereas all vertebrates retain a moderate neuroproliferative capacity, phylogenetically younger mammals become dramatically impaired in this potential during ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2010.03.026
更新日期:2010-05-12 00:00:00
abstract::Anticipation of an unavoidable painful stimulation, i.e. anticipation stress, induces analgesia. This analgesia may result from activation of the endogenous opioid peptide system as it is blocked by naloxone. The present paper characterizes the anticipation stress further by following the kinetics of the analgesia ris...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(89)91674-0
更新日期:1989-12-04 00:00:00
abstract::Stimuli such as noise or hypoxia can induce a release of ATP into the cochlear fluid spaces. At nanomolar concentrations, ATP affects neurotransmission and electrochemical regulation of sound transduction. At higher concentrations, ATP may exert cytotoxicity acting on specific P2X(7) receptor subunits, thus contributi...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2006.05.094
更新日期:2006-08-09 00:00:00
abstract::The immunocytochemical localization of L-glutamate decarboxylase (GAD), the enzyme which which forms gamma-aminobutyric acid (GABA), has been studied in developing rodent cerebellum. During the first 3-4 postnatal days, GAD is distributed along non-terminal portions of axonal processes in close association with small ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(75)90813-6
更新日期:1975-03-07 00:00:00
abstract::Neurofilament expression in peripheral olfactory neurons of adult rats was investigated by immunoblotting and immunohistochemistry using monoclonal antibodies specific for each of the 3 neurofilament proteins. Immunoblotting analysis of olfactory epithelium extracts demonstrated the presence of only the 200 kDa (NFH) ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(91)90416-s
更新日期:1991-05-31 00:00:00
abstract::The GABA agonist muscimol, injected into the depressor area of the caudal ventrolateral medulla, increased blood pressure and increased the expression of the immediate early gene c-fos in the rostral ventral medulla (RVM) of the rat. The number of Fos-immunoreactive (Fos-IR) neurons seen in the RVM was increased 3-fol...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(94)90056-6
更新日期:1994-05-16 00:00:00
abstract::Astrogliogenesis in the human fetal cerebellum was examined in 46 cerebella obtained from hysterotomy specimens ranging between 9 and 20 weeks of ovulation age. By correlating the results obtained by rapid Golgi and Golgi-Cox methods, the indirect immunofluorescence technique for glial fibrillary acidic protein, and e...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(80)90280-2
更新日期:1980-05-26 00:00:00
abstract::The pars externa (PE) system of the anterior olfactory nucleus (AON) in a primate, Callithrix jacchus, was defined by its architecture and by its connection patterns with the main olfactory bulb (MOB) as revealed by tracing techniques. Focal, unilateral injections of wheat germ agglutinin-conjugated horseradish peroxi...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(88)90071-6
更新日期:1988-08-02 00:00:00
abstract::In the present study, the role of medial septal receptors in behaviour-induced increase in acetylcholine (ACh) release in hippocampus was investigated using dual-probe microdialysis in combination with a simple behavioural procedure. gamma-Aminobutyric acid (GABA) and glutamate receptor agonists and antagonists were a...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(97)01445-5
更新日期:1998-04-06 00:00:00
abstract::The nictitating membrane response to periocular electrostimulation was investigated in anesthetized and paralyzed rabbits. Recordings from the abducens nerve, which carries the fibers innervating retractor bulbi muscles that are primarily involved in this reflex, showed two distinct volleys to effective stimulation: a...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(83)91143-5
更新日期:1983-01-10 00:00:00
abstract::Strychnine-sensitive, inhibitory glycine receptors have not until lately been considered to play a significant role in neurotransmission in mammalian forebrain regions. In order to investigate the role of glycine as a neurotransmitter in brain we have measured glycine induced chloride fluxes in different adult rat for...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(95)01484-5
更新日期:1996-03-11 00:00:00