Abstract：
:Outcome following stroke is difficult to measure because the behavioral response to infarction is variable. We hypothesized that cognitive function, such as spatial learning, may be a reproducible and sensitive outcome variable. We developed an animal model of multifocal cerebral ischemia in order to study the effects of infarction on learning. To cause ischemia, several hundred microspheres were injected into the internal carotid arteries of rats. After ischemia, behavior was measured using a global rating and a Morris water maze. Postmortem serial brain sections were stained and the size of the infarctions was measured. We found that intracerebral microspheres caused cortical infarction and an impairment of spatial learning. This impairment was not due to occlusion of the internal carotid artery and was not found in animals who received a sham injection of saline. The degree of learning impairment was not correlated with the volume density of the infarctions or with the volume density of the remaining cerebral hemisphere. The learning impairment clearly differentiated normal from lesioned animals, and the impairment was probably due to a delay in acquisition of spatial information rather than a defect in retention or retrieval. Measurement of learning deficit after cerebral ischemia is an efficient and sensitive method for evaluating new stroke treatments and possibly for exploring structure function relationships.
journal_name
Exp Neuroljournal_title
Experimental neurologyauthors
Lyden PD,Zivin JA,Chabolla DR,Jacobs MA,Gage FHdoi
10.1016/0014-4886(92)90160-rkeywords:
subject
Has Abstractpub_date
1992-05-01 00:00:00pages
122-32issue
2eissn
0014-4886issn
1090-2430pii
0014-4886(92)90160-Rjournal_volume
116pub_type
杂志文章abstract：:The effect of proximal nerve crush on regeneration after unrepaired nerve transection was studied in feline cutaneous nerves. Delays between the initial transection and the subsequent nerve crush varied between 0 (immediate crush) and 13 months. A survival time of 6 to 12 months after the crush was allowed for regener...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(85)90194-3
更新日期：1985-05-01 00:00:00
abstract：:In this study, we show that removal of entorhinal cortex (ERC) afferents to hippocampus reduces levels of presenilin 1 (PS1) in the dentate gyrus of APPswe/PS1DeltaE9 transgenic (Tg) mice. PS1 immunoreactivity on the deafferented dentate gyrus decreases by approximately 25% and 50%, 2 and 4 weeks post-lesion compared ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2003.08.018
更新日期：2003-12-01 00:00:00
abstract：:This study was performed to investigate the physicological properties of histaminergic neurons in intraocular hypothalamic transplants. Pieces of posterolateral hypothalamus containing the tuberomammillary nucleus were dissected from Embryonic Day 17 rat fetuses and transplanted into the anterior chamber of the eye of...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1995.1079
更新日期：1995-11-01 00:00:00
abstract：:The binding of agonists and antagonists to beta-adrenergic receptors in brain tissue obtained postmortem in nonalcoholic controls and matched intoxicated and sober alcoholics was measured to assess the state of the receptors and their coupling to adenylate cyclase. Binding of antagonist, iodocyanopindolol, to cerebral...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(89)90131-3
更新日期：1989-09-01 00:00:00
abstract：:Peripheral nerve regeneration following injury occurs spontaneously, but many of the processes require metabolic energy. The mechanism of energy supply to axons has not previously been determined. In the central nervous system, monocarboxylate transporter 1 (MCT1), expressed in oligodendroglia, is critical for supplyi...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2014.10.018
更新日期：2015-01-01 00:00:00
abstract：:The reduction of GABA-mediated postsynaptic inhibition tolerated before seizure initiation was assessed using the GABA-mediated, disynaptic, inhibitory pathway from the ipsilateral vestibular nerve to trochlear motoneurons in pentobarbital-anesthetized cats. The amplitude of intracellularly recorded IPSPs or the corre...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(83)90284-4
更新日期：1983-05-01 00:00:00
abstract：:We previously showed that overexpressing the 70-kDa inducible heat shock protein in primary astrocyte cultures and in a rodent stroke model using viral vectors resulted in protection from ischemia and ischemia-like injury. However, viral transfection could potentially provoke a stress response itself; therefore, we ex...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2000.7614
更新日期：2001-07-01 00:00:00
abstract：:Altered activity in one of the output nuclei of the basal ganglia, the internal segment of the globus pallidus, is known to play an important role in the generation of parkinsonism. These inactivation studies tested the hypothesis that altered activity in the second major output nucleus of the basal ganglia, the subst...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2000.7572
更新日期：2001-02-01 00:00:00
abstract：:Because vitamin D hormone deficiency (VDHdef) can worsen severity and outcome for ischemic stroke, we examined the role of VDH in maintaining blood-brain-barrier (BBB integrity) in a rat model of stroke. In most types of stroke, the BBB is markedly compromised, potentially leading to a cascade of injury processes and ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2018.11.005
更新日期：2019-02-01 00:00:00
abstract：:Multiple system atrophy (MSA) is a rare neurodegenerative disease of undetermined cause manifesting with progressive autonomic failure (AF), cerebellar ataxia and parkinsonism due to neuronal loss in multiple brain areas associated with (oligodendro)glial cytoplasmic alpha-synuclein (alpha SYN) inclusions (GCIs). Usin...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2010.05.008
更新日期：2010-08-01 00:00:00
abstract：:Although axons lose some of their intrinsic capacity for growth after their developmental period, some axons retain the potential for regrowth after injury. When provided with a growth-promoting substrate such as a peripheral nerve graft (PNG), severed axons regenerate into and through the graft; however, they stop wh...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2012.09.011
更新日期：2013-01-01 00:00:00
abstract：:Cortical stimulation (CS) as a means to modulate regional activity and excitability in cortex is emerging as a promising approach for facilitating rehabilitative interventions after brain damage, including stroke. In this study, we investigated whether CS-induced functional improvements are linked with synaptic plasti...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2008.01.031
更新日期：2008-07-01 00:00:00
abstract：:A graded contusion spinal cord injury (SCI) was created in the adult rat spinal cord using the Infinite Horizons (IH) impactor to study the correlation between injury severity and anatomical, behavioral, and electrophysiological outcomes. Adult Fisher rats were equally divided into five groups and received contusion i...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2004.08.026
更新日期：2005-02-01 00:00:00
abstract：:A single fourth lumbar dorsal rootlet was transected at the entry point into the spinal cord. The nerve fibres were labelled with biotin dextran injected into the rootlet. An endogenous matrix containing olfactory-ensheathing cells (OECs) labelled with green fluorescent protein was applied to the opposing cut surfaces...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2004.04.021
更新日期：2004-08-01 00:00:00
abstract：:Sciatic cryoneurolysis (SCN) is an experimental rat mononeuropathy model that produces neuropathic behavioral sequelae distinct from other neuropathy models. Following SCN, there is limited autotomy peaking in severity and incidence at 7-14 days and delayed but sustained allodynia appearing at about 21 days, with no e...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1995.1028
更新日期：1995-06-01 00:00:00
abstract：:Ghrelin has been shown to regulate neurogenesis in the hippocampus. The aim of this study was to investigate the possible influence of ghrelin on cell proliferation and neuroblast formation in the subventricular zone (SVZ) and rostral migratory system (RMS) and generation of interneurons in the olfactory bulb (OB). We...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2013.11.021
更新日期：2014-02-01 00:00:00
abstract：:The success of peripheral nerve regeneration depends on intrinsic properties of neurons and a favorable environment, although the mechanisms underlying the molecular events during degeneration and regeneration are still not elucidated. Schwann cells are considered one of the best candidates to be closely involved in t...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2009.01.008
更新日期：2009-05-01 00:00:00
abstract：:Spasticity is a condition that can include increased muscle tone, clonus, spasms, and hyperreflexia. In this study, we report the effect of manually stimulating the dorsal lumbosacral skin on spontaneous locomotor-like activity and on a variety of reflex responses in 5 decerebrate chronic spinal cats treated with clon...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2012.03.013
更新日期：2012-06-01 00:00:00
abstract：:By way of commentary on a recent report that transplanted adult neural progenitor cells can alleviate functional deficits in a rat lesion model of Huntington's disease [Vazey, E.M., Chen, K., Hughes, S.M., Connor, B., 2006. Transplanted adult neural progenitor cells survive, differentiate and reduce motor function imp...
journal_title：Experimental neurology
pub_type： 评论,杂志文章,评审
doi：10.1016/j.expneurol.2006.11.007
更新日期：2007-02-01 00:00:00
abstract：:In this study we investigated whether the link between mitochondrial dysfunction and deregulation of Ca(2+) homeostasis preceding excitotoxic cell death is mediated by cellular deenergization. Glycolytic and/or mitochondrial ATP synthesis was inhibited with 2-deoxy-D-glucose (2DG) and oligomycin, respectively. Changes...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/s0014-4886(03)00243-7
更新日期：2003-10-01 00:00:00
abstract：:A transgenic mouse model of Huntington's disease (R6/1 and R6/2 lines) expressing exon 1 of the HD gene with 115-150 CAG repeats resisted striatal damage following injection of quinolinic acid and other neurotoxins. We examined whether excitotoxin resistance characterizes mice with mutant huntingtin transgenes. In a n...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2002.7885
更新日期：2002-05-01 00:00:00
abstract：:Epidermal growth factor responsive (EGFr) neural progenitor (NP) cells have been shown to be a potential alternative tissue source for neural transplantation and for developmental study. We have shown that nonpassaged EGFr NP cells can self-renew for 2 years in neurospheres and can robustly differentiate into glia and...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2000.7425
更新日期：2000-07-01 00:00:00
abstract：:The ability to differentiate neural stem cells (NSCs) into dopamine neurons is fundamental to their role in cell replacement therapies for neurodegenerative disorders such as Parkinson's disease. We show here that when a clonal line (C17.2) of undifferentiated NSCs is transplanted into the intact or 6-hydroxydopamine-...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2002.7989
更新日期：2002-09-01 00:00:00
abstract：:Mitochondria play a pivotal role in the development of pathology associated with Parkinson's disease (PD), traumatic brain injury (TBI), and following exposure to the environmental toxin trichloroethylene (TCE). Evidence from humans indicates that both TBI and TCE can play a role in the development of PD and that each...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2011.12.012
更新日期：2012-03-01 00:00:00
abstract：:Cholinergic neurons in the basal forebrain magnocellular complex (BFMC) respond to nerve growth factor (NGF) during development and in adult life, and it has been suggested that the administration of NGF might ameliorate some of the abnormalities that occur in neurological disorders associated with degeneration of thi...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(91)90066-l
更新日期：1991-05-01 00:00:00
abstract：:Several lines of evidence have demonstrated beneficial effects of the hematopoietic factor G-CSF in experimental stroke. A conclusive demonstration of this effect in G-CSF deficient mice is, however, lacking. We therefore investigated the effect of G-CSF deficiency on infarct volumes, functional recovery, mRNA and pro...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2009.03.018
更新日期：2009-06-01 00:00:00
abstract：:The age-dependent effects of sympathetic superior cervical ganglionectomy on smooth muscle alpha-adrenoceptor contractile responses were investigated in Müller's muscle in the superior eyelid of the Sprague-Dawley rat. Ganglionectomies in juvenile (32 days) and adult (70 days) rats produced sustained sympathetic dener...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(86)90031-2
更新日期：1986-01-01 00:00:00
abstract：:To determine whether or not brain damage is likely to occur in the repeated apneic episodes experienced by some alcoholics during intoxicated sleep, rats were anesthetized with alcohol and subjected to repeated episodes to asphyxia. Each episode lasted 90 s, arterial PO2 was less than 50 mm Hg for 60 s, and 30 episode...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(84)90017-7
更新日期：1984-04-01 00:00:00
abstract：:We studied local autoimmune reactions in rat sciatic nerve after two successive injuries at the same site. The behavioral consequences of these injuries were also examined. We found that repetitive injuries had a moderately adverse effect on function and were accompanied by local autoimmune reactions. A causal relatio...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(85)90200-6
更新日期：1985-05-01 00:00:00
abstract：:the antiexcitotoxic efficacy of melatonin, a putative endogenous hydroxyl radical scavenger, was studied in primary cultures of rat cerebellar granule neurons. Excitotoxicity was induced in 7- to 9-day-old cultures by an exposure to glutamate (15 min in the absence of magnesium) or to glutamate receptor agonists, kain...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(95)90005-5
更新日期：1995-01-01 00:00:00
