Abstract：
:A comparison of regenerated and normal frog sciatic nerves showed a marked reduction in conduction velocity from 37.5 to 15.2 m/s with little change in the absolute refractory period. Changes in conduction velocity corresponded to a reduced mean axon caliber (4.8 versus 6.6 micron). Regenerated nerves also had markedly foreshortened internodes (mean of 309 versus 1236) micron) and thinner sheaths than controls. The geometric proportions of internode length/fiber caliber (l/d) was reduced to approximately one-third of normal. Regenerated nerves were more easily blocked by exposure to 3 mmol/liter procaine than controls, showing greater increase in the absolute refractory, or decreases, respectively, in the peak of the alpha-wave and the area of the compound action potential; the effect of procaine on conduction velocity was less marked. Exposure of various lengths of nerves in chambers of 1, 3, or 20 mm length revealed greater differences for the shorter chambers. The data indicated that some effects could be attributed to the foreshortening of the regenerated internodes. The main difference between normal and regenerated nerves, however, had to be attributed to changes in the nodal membrane characteristics of the latter.
journal_name
Exp Neuroljournal_title
Experimental neurologyauthors
Minwegen P,Friede RLdoi
10.1016/0014-4886(85)90141-4subject
Has Abstractpub_date
1985-01-01 00:00:00pages
147-64issue
1eissn
0014-4886issn
1090-2430pii
0014-4886(85)90141-4journal_volume
87pub_type
杂志文章abstract：:Periodic changes in ovarian steroid levels during fertility cycles affect learning both in humans and in rats in parallel with electrophysiological and morphological fluctuations in selective neuronal populations. In particular, during the estrous cycle of the female rat, hippocampal CA1 region undergoes cyclic modifi...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1999.7186
更新日期：1999-10-01 00:00:00
abstract：:The aim of this study was to elucidate whether oligodendrocytes die in fiber tracts that are spared by a spinal cord injury but are in close vicinity of inflammatory cells. Adult rat spinal cords were studied histologically 1 day to 2 weeks after a contusion lesion that left the ventral white matter largely intact. Ma...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2000.7379
更新日期：2000-06-01 00:00:00
abstract：:The nontoxic C fragment of tetanus toxin (TC) can transport other proteins from the circulation to central nervous system (CNS) motor neurons. Increased levels of CuZn superoxide dismutase (SOD) are protective in experimental models of stroke and Parkinson's disease, whereas mutations in SOD can cause motor neuron dis...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1997.6490
更新日期：1997-06-01 00:00:00
abstract：:Febrile seizures are the most common seizure type in children under the age of five, but mechanisms underlying seizure generation in vivo remain unclear. Animal models to address this issue primarily focus on immature rodents heated indirectly using a controlled water bath or air blower. Here we describe an in vivo mo...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2012.06.013
更新日期：2012-09-01 00:00:00
abstract：:Chronic dopamine depletion produces neurochemical changes within the striatum as well as enhanced behavioral and metabolic responses to dopamine agonists. Changes in striatal neuropeptides have been consistently described, including increased expression of preproenkephalin mRNA and decreased expression of preprotachyk...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2000.7555
更新日期：2001-02-01 00:00:00
abstract：:Autonomic dysreflexia is a condition of episodic hypertension that develops after spinal cord injury (SCI). We previously showed that a two-day anti-inflammatory treatment with an anti-CD11d integrin monoclonal antibody (mAb), soon after SCI in rats, reduced the magnitude of dysreflexia for at least 6 weeks. Effects o...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2005.03.016
更新日期：2005-08-01 00:00:00
abstract：BACKGROUND AND PURPOSE:N,N-dimethyltryptamine (DMT) is an endogenous ligand of the Sigma 1 receptor (Sig-1R) with documented in vitro cytoprotective properties against hypoxia. Our aim was to demonstrate the in vivo neuroprotective effect of DMT following ischemia-reperfusion injury in the rat brain. METHODS:Transient...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2020.113245
更新日期：2020-05-01 00:00:00
abstract：:A cerebrospinal fluid (CSF) to brain exchange has been postulated for lipid-soluble and small molecular substances and has led to nearly 100 attempts per year to produce central effects via intrathecal injections. With few exceptions, however, modern neurological practice has avoided this approach because of its demon...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(84)90192-4
更新日期：1984-11-01 00:00:00
abstract：:Wnt5b, a member of Wnt family, plays multiple roles in tumor progression and metastasis. However, whether Wnt5b contributes to the sensitization of dorsal root ganglia (DRG) neurons and pathogenesis of bone cancer pain still remains unclear. Here, we found that the protein expression of Wnt5b and its atypical tyrosine...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2020.113482
更新日期：2020-12-01 00:00:00
abstract：:Previous studies have suggested that defective high-affinity glutamate uptake, due mainly to a major loss of the astroglial-specific GLT-1 glutamate transporter, underlies the selective motoneuron degeneration observed in sporadic ALS (24, 28). If a defect in glutamate transport underlies the pathogenesis of sporadic ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1996.0198
更新日期：1996-12-01 00:00:00
abstract：:Oxidative stress can contribute to many neurological disease processes. Because many events known to involve oxidative stress (infection, hemorrhage, brain trauma) are accompanied by hydrocephalus, the present study sought to evaluate the relationship between oxidative stress and the progression of hydrocephalus. Assa...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1998.6969
更新日期：1999-01-01 00:00:00
abstract：:The sympathetic innervation of lumbar dorsal root ganglia (DRGs) and the possible presence of spinal cord circuits connecting primary sensory afferents to the sympathetic outflow to DRGs were investigated. We used simultaneous tracing of the sympathetic input to and sensory output from DRGs. Adult male rats received u...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2005.01.028
更新日期：2005-07-01 00:00:00
abstract：:Dentate gyrus is usually assumed to be resistant to ischemia. However, the mechanisms underlying this functional plasticity are not fully understood. Herein, we aimed at identifying a neuroprotective mechanism in the dentate gyrus of the adult rat after global ischemia. Cyclic AMP response element (CRE)-binding protei...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2006.06.016
更新日期：2006-12-01 00:00:00
abstract：:Injections of horseradish peroxidase were made into surgically exposed superior cervical ganglia of Sprague-Dawley rats weighing 250 to 320 g. Anterogradely labeled postganglionic fibers were observed in the nervus conarii, pineal gland, pineal stalk, and the choroid plexus. Terminal fields were identified in lamina i...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(87)90101-4
更新日期：1987-08-01 00:00:00
abstract：:Caloric restriction (CR) is a daily reduction of total caloric intake without a decrease in micronutrients or disproportionate reduction of any one dietary component. CR can increase lifespan reliably in a wide range of species and appears to counteract some aspects of the aging process throughout the body. The effect...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2008.01.016
更新日期：2008-05-01 00:00:00
abstract：:beta-N-methylamino-l-alanine (BMAA) is a non-protein amino acid implicated in the neurodegenerative disease amyotrophic lateral sclerosis/Parkinson-dementia complex (ALS/PDC) on Guam. BMAA has recently been discovered in the brains of Alzheimer's patients in Canada and is produced by various species of cyanobacteria a...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2009.04.002
更新日期：2009-06-01 00:00:00
abstract：:Total, Mg2+-, Na+,K+-, and Ca2+-ATPase activities were studied in fresh brain membrane preparations from adult epileptic (El) mice and nonepileptic C57BL/6J (B6) mice. The El mice have an inherited type of temporal lobe epilepsy. No significant differences were observed between the El and B6 mice for any of the ATPase...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(88)90191-4
更新日期：1988-03-01 00:00:00
abstract：:Increased intercellular coupling has been implicated in contributing to the synchronization of discharges characteristic of epileptic foci. Using RNA blot analysis, the level of mRNA for the heart-type gap junction protein, connexin43, is shown to be elevated in samples of temporal lobe neocortex obtained at the time ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(91)90007-y
更新日期：1991-02-01 00:00:00
abstract：:Blood brain barrier (BBB) hyperpermeability and brain edema contribute to increased seizure susceptibility and brain injury in status epilepticus (SE). The endothelial glycocalyx is the coating on luminal side of the endothelium and can be considered as the first barrier of BBB. Currently, little is known about the ef...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2020.113320
更新日期：2020-08-01 00:00:00
abstract：:We have analyzed the effects of environmental enrichment (EE) in a seizure-prone mouse model in which the genetic disruption of the presynaptic protein Bassoon leads to structural and functional alterations in the hippocampus and causes early spontaneous seizures mimicking human neurodevelopmental disorders. One-month...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2014.05.010
更新日期：2014-11-01 00:00:00
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...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(92)90160-r
更新日期：1992-05-01 00:00:00
abstract：:Recent evidence indicates that protein aggregation and in particular the formation of toxic protein oligomers is a key mechanism in synucleinopathies such as Parkinson's disease (PD). Post mortem brain tissue studies as well as animal studies furthermore suggest that matrix metalloproteinases (MMPs) are also involved ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2008.10.010
更新日期：2009-01-01 00:00:00
abstract：:In the embryonic brain, the transcription factor Nkx2.1 is localized in the medial ganglionic eminence and the ventromedial part of the hypothalamus. In the present study, we examined the development of mesencephalic dopamine (DA) neuron system in mice lacking Nkx2.1. In normal mice, tyrosine hydroxylase-immunoreactiv...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/s0014-4886(03)00030-x
更新日期：2003-07-01 00:00:00
abstract：:Assessing the efficacy of human stem cell transplantation in rodent models is complicated by the significant immune rejection that occurs. Two recent reports have shown conflicting results using neonatal tolerance to xenografts in rats. Here we extend this approach to mice and assess whether neonatal tolerance can pre...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2014.01.007
更新日期：2014-04-01 00:00:00
abstract：:This work investigated the extent to which constituent proportions of fast- and slow-twitch muscle units determine whole muscle contractile properties. We employed several self- and cross-reinnervation models using synergistic homogeneous and heterogeneous muscles. By comparing the present data with previously publish...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(88)90048-9
更新日期：1988-09-01 00:00:00
abstract：:Global cerebral ischemia depletes brain tissue NAD+, an essential cofactor for mitochondrial and cellular metabolism, leading to bioenergetics failure and cell death. The post-ischemic NAD+ levels can be replenished by the administration of nicotinamide mononucleotide (NMN), which serves as a precursor for NAD+ synthe...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
doi：10.1016/j.expneurol.2019.113144
更新日期：2020-03-01 00:00:00
abstract：:Based on previous studies demonstrating the potential of growth factors to enhance peripheral nerve regeneration, we developed a novel growth factor delivery system to provide sustained delivery of nerve growth factor (NGF). This delivery system uses heparin to immobilize NGF and slow its diffusion from a fibrin matri...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/s0014-4886(03)00258-9
更新日期：2003-11-01 00:00:00
abstract：:In previous studies on sensory axons we reported that the effect of a conditioning lesion on increasing regeneration rate was enhanced if the two lesions were superimposed, rather than made at separate sites on the nerve, and proposed that this was due to the growth of axons through nerve predegenerated by the conditi...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(85)90027-5
更新日期：1985-11-01 00:00:00
abstract：:Excessive synchronization of basal ganglia neuronal activity at ~20 Hz is characteristic of patients with untreated Parkinson's disease (PD). Correlative evidence suggests that this activity may contribute to bradykinesia. Attempts to demonstrate causality through stimulation imposed synchronization at 20 Hz in the re...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2011.05.018
更新日期：2011-09-01 00:00:00
abstract：:The aim of this study was to compare the physiological properties of single neurons in the glabrous (G) and heterogeneous (H) subdivisions of primary somatosensory digit 3 cortex of adult raccoons. Extracellular recordings were obtained from 50 G neurons whose receptive fields (RFs) were confined to the glabrous skin ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(92)90059-y
更新日期：1992-02-01 00:00:00
