Abstract：
:Granule cells of the dentate gyrus can be selectively destroyed by intrahippocampal injections of colchicine. The present study evaluates the consequences of this selective neuronal destruction on the afferent axon terminals which have been deprived of their normal targets. The area of the neuropil in the dentate gyrus (the molecular layer) was evaluated in sections stained using the Timm's method for heavy metals, which selectively marks the terminal fields of the different afferent systems. The molecular layer was examined electron microscopically to determine the fate of afferent terminals. Anterograde transport of HRP or [3H]proline was used to define the location and extent of afferent terminal fields of the entorhinal and commissural projections to the dentate gyrus in which the granule cells had been destroyed. There was a substantial reduction in the size of the dentate gyrus molecular layer after destruction of granule cells with colchicine. Electron microscopic analyses revealed that there were very few axon terminals or synapses remaining in the shrunken molecular layer. Tract tracing methods revealed that both the entorhinal and commissural pathways were still present in their normal terminal zones in the dentate gyrus, however, the density of the projections was greatly reduced. There was no evidence to suggest the formation of ectopic projections to unusual locations, such as the contralateral dentate gyrus. Pathways passing through the hippocampus appeared to survive the colchicine injections. These results suggest that target destruction in adult animals leads to the disappearance of the afferent axon terminals which normally innervate the cells which die.
journal_name
Restor Neurol Neuroscijournal_title
Restorative neurology and neuroscienceauthors
Goldschmidt RB,Steward Odoi
10.3233/RNN-1992-3605subject
Has Abstractpub_date
1992-01-01 00:00:00pages
321-34issue
6eissn
0922-6028issn
1878-3627pii
4L60QU3532457073journal_volume
3pub_type
杂志文章abstract：BACKGROUND:The dopamine system plays a key role in motor learning and neuroplasticity. Several studies have studied the efficacy of dopaminergic drugs in enhancing motor recovery after stroke, but the effects are controversial. Although genetic variations in plasticity-related genes influence each individual's capacity...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-160667
更新日期：2016-11-22 00:00:00
abstract：PURPOSE:Freezing of gait (FOG) affects mobility and balance seriously. Few reports have investigated the effects of repetitive transcranial magnetic stimulation (rTMS) on FOG in Parkinson's disease (PD). We investigated the efficacy of high-frequency rTMS for the treatment of FOG in PD. METHODS:Seventeen patients diag...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章,随机对照试验
doi：10.3233/RNN-140489
更新日期：2015-01-01 00:00:00
abstract：PURPOSE:Repetitive mild traumatic brain injury (TBI) is a major military and sports health concern. The purpose of this study was to determine if a diet rich in omega-3 fatty acids would reduce cognitive deficits and neuronal cell death in a novel fluid percussion rat model of repetitive mild TBIs. METHODS:Thirty-two ...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-130316
更新日期：2013-01-01 00:00:00
abstract：OBJECTIVE:To report the safety and efficacy of a novel therapeutic trial with umbilical cord blood (UCB) and concomitant recombinant human erythropoietin (rhEPO), which was tried for three cases of severe traumatic brain injury (TBI) in rehabilitation. DESIGN:Case series. SETTING:University hospital setting. PARTICI...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-120289
更新日期：2013-01-01 00:00:00
abstract：PURPOSE:This study investigated whether enrichment improves hindlimb movement following complete spinal cord transection and transplantation of olfactory ensheathing glia (OEG), with or without a Schwann cell (SC) bridge. METHODS:Motor activity was encouraged through provision of motor enrichment housing (MEH); a mult...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：2006-01-01 00:00:00
abstract：:Administration of gangliosides accelerates recovery of function after entorhinal cortex lesions on open field activity and learned spatial alternation tasks. In the present study, we examined whether GM1 ganglioside might enhance recovery from bilateral entorhinal cortex lesions on a differential reinforcement of low-...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：BACKGROUND:Virtual reality (VR) has the potential to provide intensive, repetitive, and task-oriented training, and game-based therapy can enhance patients' motivation and enjoyment. OBJECTIVE:The objective of the present study was to develop a mobile game-based upper extremity VR program for patients who have experie...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章,随机对照试验
doi：10.3233/RNN-150626
更新日期：2016-05-02 00:00:00
abstract：:We are interested in the role cyclic AMP may play as a mediator of growth factor-induced gene expression in regenerating peripheral nerves. As a first step, we investigated mRNA levels and protein synthesis in intact frog dorsal root ganglia (DRG) treated with the adenylate cyclase activator, forskolin in vitro. Forsk...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-1990-13408
更新日期：1990-01-01 00:00:00
abstract：:Corticomotor excitability is reduced during rhythmic passive movement compared to rest, but it is not known whether the mechanism is purely segmental or includes a supraspinal pathway. To determine how interruption of sensory projections at a supraspinal level affects corticomotor excitability during passive movement,...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：PURPOSE:The primary somatosensory cortex (S1) is somatotopically reorganized after limb amputation. The duration of the amputation, the intensity of phantom limb pain but also a multifactoral model of altered cerebral input have been discussed to be associated with cortical changes. Patients with finger amputation rare...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-130380
更新日期：2014-01-01 00:00:00
abstract：PURPOSE:Glutamate transporters are responsible for removing glutamate from the extracellular space and have the potential to protect neurons from excitotoxicity. In the present study, the effects of ceftriaxone and (2R, 4R)-APDC (APDC) on the protein expression of GLAST and GLT-1, the rate of glutamate uptake, and neur...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-2011-603
更新日期：2011-01-01 00:00:00
abstract：PURPOSE:In brain-computer interfaces (BCIs), electrical brain signals during motor imagery are utilized as commands connecting the brain to a computer. To use BCI in patients with stroke, unique brain signal changes should be characterized during motor imagery process. This study aimed to examine the trial-dependent mo...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-150534
更新日期：2015-08-26 00:00:00
abstract：PURPOSE:The relationship between auditory temporal-order perception and phoneme discrimination has been discussed for several years, based on findings, showing that patients with cerebral damage in the left hemisphere and aphasia, as well as children with specific language impairments, show deficits in temporal-process...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：2005-01-01 00:00:00
abstract：:Injury of the nervous system initiates a cascade of signal transduction including a rise in extracellular glutamate which leads to subsequent secondary neuronal loss. Excitotoxicity is known to play a crucial role in cell death spinal cord trauma. Gangliosides, particularly monosialogangliosides (GM1), are protective ...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：BACKGROUND:High definition transcranial direct current stimulation (HD-tDCS) has been administered over single brain regions for small numbers of sessions. Safety, feasibility and tolerability of HD-tDCS over multiple brain regions, multiple daily stimulations and long periods are not established. OBJECTIVE:We studied...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-170757
更新日期：2017-01-01 00:00:00
abstract：:Vestibular habituation was studied in normal subjects and in patients with cerebellar disease using a stimulation paradigm proposed in this paper. Six caloric stimuli were repeated daily in the same ear during six days and electronystagmographic responses at the beginning and the end of that period were compared. The ...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-1992-4403
更新日期：1992-01-01 00:00:00
abstract：BACKGROUND:A cerebral ischemic stroke involves mitochondrial dysfunction, motor deficits, and paralysis; and Danhong injection (DHI) might possess mitochondrial protection and functional recovery in a stroke subject through promoting expression of parkin, a ubiquitin ligase playing a key role in the regulation of prote...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-180828
更新日期：2019-01-01 00:00:00
abstract：:Many toxic factors are generated during stroke that contribute directly to the death of neurons. Several recent studies suggest that a suicide-like phenomena similar to apoptosis or programmed cell death also contributes to the loss of neurons in stroke. The evidence implicating apoptosis in stroke can be divided into...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-1996-9404
更新日期：1996-01-01 00:00:00
abstract：BACKGROUND:Patients suffering from chronic disorders of consciousness (DOC), including minimally conscious state (MCS) and unresponsive wakefulness syndrome (UWS), typically show an awareness impairment paralleled by a significant reflex hyper-excitability, which depend on the cortical deafferentation following brain-d...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-160655
更新日期：2017-01-01 00:00:00
abstract：BACKGROUND:Robotic rehabilitation is a highly promising approach to recover lost functions after stroke or other neurological disorders. Unfortunately, robotic rehabilitation currently suffers from "motor slacking", a phenomenon in which the human motor system reduces muscle activation levels and movement excursions, o...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-180830
更新日期：2018-01-01 00:00:00
abstract：PURPOSE:To investigate whether repeated sessions of motor imagery and action observation modulate corticospinal excitability (CE) over time, whether these processes are susceptible of any training effect and if such effect might be different for the dominant and non dominant hemisphere. METHODS:11 subjects underwent t...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-2012-120241
更新日期：2012-01-01 00:00:00
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journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：2005-01-01 00:00:00
abstract：:The outgrowth of neurites in neuronal cell cultures reflects the intrinsic capacity for neurite regeneration and morphological rearrangements after axotomy and in plasticity. The role of fast axonal transport in these neurite outgrowth responses has not been investigated. We have recently shown that sabeluzole (R58735...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-1992-4103
更新日期：1992-01-01 00:00:00
abstract：:Retinal and cortical lesions are completely different events that trigger visual cortical plasticity. We therefore compared the cortical effects of homonymous lesions of the central retina with effects of cortical lesions. All in vivo experiments were performed in anaesthetized, adult cats. Retinal lesions were made w...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：PURPOSE:Current models of intracerebral hematoma are difficult to use for neurotransplantation studies because of high mortality and important variations of morphology, size and location of blood deposits. We propose a modification of the autologous blood infusion technique in rats to reduce these limitations. METHODS...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：:The response of astroglial cells in the hippocampus to long-term portacaval anastomosis (PCA), an experimental model of hepatic encephalopathy, was studied in adult male rats and compared with controls. Six months after PCA, the rat hippocampi were processed for glial fibrillary acidic protein (GFAP). GFAP-immunoposit...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：:Following brain injury there is an excessive release of glutamate, a reduction in levels of cellular Mg+ +, and the generation of oxygen free radicals. These processes may contribute to the severity of the behavioral impairments seen following brain injury by leading to secondary neuronal degeneration. The present exp...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-1997-111208
更新日期：1997-01-01 00:00:00
abstract：:Since various studies, including multi-centre studies, investigating the effect of repetitive transcranial magnetic stimulation (rTMS) in depression have shown different results, it is now important to research, which symptoms of depression are most responsive to this kind of non-invasive brain stimulation. Furthermor...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章,评审
doi：10.3233/RNN-2010-0557
更新日期：2010-01-01 00:00:00
abstract：PURPOSE:Study the effect of peripheral nerve extracts and BDNF on retinal ganglion cell (RGC) regeneration in adult rats. METHODS:Postmicrosomal fractions were obtained from 7-day, predegenerated, as well as non-predegenerated peripheral adult rats nerves. Autologous connective tissue chambers filled with fibrin were ...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：:Purpose: Damage of primary visual cortex in adult humans, monkeys and cats severely disrupts vision by disconnecting much of the cogni-tive processing machinery of extrastriate cortex from its source of visual signals in the retina. Equivalent lesions sustained early in life result in partial sparing of visual process...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：2000-01-01 00:00:00
