Abstract：
:The ectopic discharges observed in uninjured dorsal root ganglion (DRG) neurons following various lesions of spinal nerves have been attributed to functional alterations of voltage-gated sodium channels (VGSCs). Such mechanisms may be important for the development of neuropathic pain. However, the pathophysiology underlying the functional modulation of VGSCs following nerve injury is largely unknown. Here, we studied this issue with use of a selective lumbar 5 ventral root transection (L5-VRT) model, in which dorsal root ganglion (DRG) neurons remain intact. We found that the L5-VRT increased the current densities of TTX-sensitive Na channels as well as currents in Nav1.8, but not Nav1.9 channels in uninjured DRG neurons. The thresholds of action potentials decreased and firing rates increased in DRG neurons following L5-VRT. As we found that levels of tumor necrosis factor-alpha (TNF-α) increased in cerebrospinal fluid (CSF) and in DRG tissue after L5-VRT, we tested whether the increased TNF-α might result in the changes in sodium channels. Indeed, recombinant rat TNF (rrTNF) enhanced the current densities of TTX-S and Nav1.8 in cultured DRG neurons dose-dependently. Furthermore, genetic deletion of TNF receptor 1 (TNFR-1) in mice attenuated the mechanical allodynia and prevented the increase in sodium currents in DRG neurons induced by L5-VRT. These data suggest that the increase in sodium currents in uninjured DRG neurons following nerve injury might be mediated by over-production of TNF-α.
journal_name
Exp Neuroljournal_title
Experimental neurologyauthors
Chen X,Pang RP,Shen KF,Zimmermann M,Xin WJ,Li YY,Liu XGdoi
10.1016/j.expneurol.2010.11.017subject
Has Abstractpub_date
2011-02-01 00:00:00pages
279-86issue
2eissn
0014-4886issn
1090-2430pii
S0014-4886(10)00418-8journal_volume
227pub_type
杂志文章abstract：:Amyotrophic lateral sclerosis [ALS] is a rapidly progressive neurodegenerative disorder of motor neurons, heralded by the development of cortical hyperexcitability. Reduction of short interval intracortical inhibition [SICI] in ALS, a feature linked to the development of cortical hyperexcitability, may be mediated by ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2009.08.017
更新日期：2009-11-01 00:00:00
abstract：:Damage to the medial frontal cortex in rats results in a learning deficit on a reinforced alternation task. The rate of recovery from this deficit was accelerated by transplantation of either adult or embryonic frontal cortex, provided that a delay was introduced between injury and transplantation. The rates of recove...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(86)90241-4
更新日期：1986-12-01 00:00:00
abstract：:Exogenous myelin- or axolemma-enriched fractions were assessed for the ability to inhibit biochemical and morphological expressions of reactive gliosis in rat optic nerve. Elvax pellets containing exogenous myelin, axolemma, whole-brain homogenate, liver, or red cell extracts or no homogenate were inserted into a dura...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(88)90108-2
更新日期：1988-05-01 00:00:00
abstract：:The dendritic organization of the phrenic nucleus as a whole was studied after injections of the B-subunit of cholera toxin conjugated to horseradish peroxidase were made into the diaphragm of adult rats. Transverse, sagittal, and horizontal sections through the phrenic nucleus (C3-C5) were incubated according to a mo...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(87)90224-x
更新日期：1987-06-01 00:00:00
abstract：:Stroke is a devastating neurological disease with no satisfactory therapies to preserve long-term neurological function, perhaps due to the sole emphasis on neuronal survival in most preclinical studies. Recent studies have revealed the importance of protecting multiple cell types in the injured brain, such as oligode...
journal_title：Experimental neurology
pub_type： 杂志文章
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更新日期：2015-10-01 00:00:00
abstract：:It has been >20 years since studies first revealed that the brain is insulin sensitive, highlighted by the expression of insulin receptors in neurons and glia, the presence of circulating brain insulin, and even localized insulin production. Following these discoveries, evidence of decreased brain insulin receptor num...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
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更新日期：2019-03-01 00:00:00
abstract：:In the intraluminal suture model of middle cerebral artery occlusion (MCAO) in the rat, lesions of the masticator muscles associated with impaired functional outcome occur. We evaluated the role of external carotid artery (ECA) transection. We assessed whether isolated interruption of an arterial or a venous connectio...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2005.05.013
更新日期：2005-10-01 00:00:00
abstract：:We administered tetrahydroaminoacridine (THA), a cholinesterase inhibitor, to rats with bilateral nucleus basalis magnocellularis lesions and measured their performance in a spatial learning task. The subjects, 34 male Fischer-344 rats, received bilateral excitotoxic NBM lesions; 10 other rats served as unlesioned con...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(90)90126-d
更新日期：1990-06-01 00:00:00
abstract：:Chewing rhythms are set by a putative central pattern generator whose output is influenced by sensory feedback. In this study we assessed how an altered feedback imposed by changing the hardness of a gum bolus modifies the timing of chewing, the maximal gape, and the activity in the masseter muscle on the chewing side...
journal_title：Experimental neurology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/0014-4886(86)90292-x
更新日期：1986-06-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(88)90229-4
更新日期：1988-12-01 00:00:00
abstract：:Systemic administration of kainic acid (12 mg/kg, i.p.), causing the established epileptic syndrome and the associated specific pattern of limbic nerve cell loss, led to substantial time-dependent increases in the brain metabolism of the endogenous excitotoxin, quinolinic acid. These changes preferentially affected bi...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(88)90140-9
更新日期：1988-01-01 00:00:00
abstract：:Theoretical and experimental analyses of deep brain stimulation (DBS) in the subthalamic nucleus (STN) show both excitatory and inhibitory effects on the neural elements surrounding the electrode. Given these observations, the mechanism underlying the therapeutic effect of STN DBS on parkinsonian motor signs remains u...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2008.01.032
更新日期：2008-05-01 00:00:00
abstract：:Antegrade, target-directed axonal regeneration is the explicit goal of nerve repair. However, aberrant and dysfunctional regrowth is commonly observed as well. At the site of surgical nerve coaptation, axonal sprouts encounter fibrotic connective tissue rich in growth-inhibiting chondroitin sulfate proteoglycan that m...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2006.08.004
更新日期：2007-01-01 00:00:00
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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：:Adult cats were subjected to subarachnoid hemorrhage by three repeated intracisternal injections of autogenous nonheparinized blood (2 ml/injection) at weekly intervals. Histological studies (light and electron microscope) were made of the basilar artery and the middle cerebral arteries of all animals. In the subarach...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(86)90103-2
更新日期：1986-11-01 00:00:00
abstract：:c-Fos protein-like immunoreactivity (IR) was investigated in the rat brain following an application of weak anodal direct current to the surface of the unilateral sensorimotor cortex in an attempt to elucidate the cellular and molecular bases of central plasticity. Anodal polarization resulted in a massive increase in...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1995.1004
更新日期：1995-05-01 00:00:00
abstract：:One of the sexual dimorphic differences in adult rodents is neural proliferation. Here we demonstrate that physiological hormone stages can modulate this proliferation in the adult forebrain. Female mice, both pregnant and synchronized in oestrus, exhibited higher proliferating cell percentages than males in both the ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2008.12.013
更新日期：2009-04-01 00:00:00
abstract：:The activity of 2',3'-cyclic nucleotide 3'-phosphohydrolase (CNPase), as a marker for myelinogenesis, was measured in different parts of the nervous system of dilute-lethal mutant mice (d1/d1). The activity in terms of micromoles of 2'-AMP formed per milligram of protein of homogenate per minute was found to be exceed...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(83)90396-5
更新日期：1983-01-01 00:00:00
abstract：:Adeno-associated virus (AAV) vectors are derived from a nonpathogenic and defective human parvovirus. Although currently unable to display the integration specificity featured by its wild-type parent, the recombinant AAV (rAAV) system has continued to attract enormous interest primarily due to its unique features such...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
doi：10.1006/exnr.1996.6396
更新日期：1997-03-01 00:00:00
abstract：:The EEG of 20 Wistar rats inbred for audiogenic seizures was recorded during 40 daily auditory stimuli 90 s long. The first stimuli provoked wild running, with no cortical EEG abnormality, and then a tonic phase with a characteristic EEG of a brief flat trace 2 to 3 s long followed by low-amplitude regular activity, 1...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(87)90290-1
更新日期：1987-07-01 00:00:00
abstract：:Serial diffusion tensor imaging scans were collected at baseline and 1 year follow-up to investigate the neurodegenerative profile of white matter (WM) in seven individuals with the Huntington's Disease (HD) gene mutation and seven control subjects matched on age and gender. In the HD subjects, but not controls, a sig...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2008.12.026
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journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2000.7539
更新日期：2001-01-01 00:00:00
abstract：:Progesterone and its metabolite, allopregnanolone, are neurosteroids that are present at high concentrations in fetal brains that decrease right after birth. Allopregnanolone is a potent positive modulator of γ-aminobutyric acid A (GABA(A)) receptor function. We examined the effect of exogenous administration of these...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2011.10.004
更新日期：2012-01-01 00:00:00
abstract：:We examined c-Fos and FosB staining in the central nervous system 8 and 24 h following acute volume expansion in unanesthetized rats. Male rats were instrumented with a femoral artery catheter for measurement of blood pressure and heart rate (HR), a jugular venous catheter for measurement of central venous pressure (C...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2004.01.020
更新日期：2004-05-01 00:00:00
abstract：:The accumulation of damage to DNA plays a significant role in the etiology of the aging process. The importance of nutrition in delaying the aging process is well recognized. L-carnitine is a quaternary ammonium compound heterogeneously distributed in the brain. In the present study the effect of L-carnitine on DNA da...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2004.09.009
更新日期：2005-01-01 00:00:00
abstract：:Cerebrospinal fluid (CSF) is produced by the choroid plexus and moved by multi-ciliated ependymal cells through the ventricular system of the vertebrate brain. Defects in the ependymal layer functionality are a common cause of hydrocephalus. N-WASP (Neural-Wiskott Aldrich Syndrome Protein) is a brain-enriched regulato...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2014.01.011
更新日期：2014-04-01 00:00:00
abstract：:Electrophysiological studies on preganglionic neurons (PGNs) in the dorsal motor nucleus (DMN) of the vagus nerve has been hampered by technical limitations. Conventional electrical stimulation of the vagus nerve with cathodal square-wave pulses activates both preganglionic and afferent fibers. Thus, some PGNs cannot ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(86)90076-2
更新日期：1986-02-01 00:00:00
abstract：:Alpha-tyrosinated tubulin is a cytoskeletal protein that is involved in axonal growth and is considered a marker of neuronal plasticity in adult mammals. In adult rats, unilateral ablation of the left facial sensorimotor cortical areas induces degeneration of corticotrigeminal projections and marked denervation of the...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2008.05.010
更新日期：2008-09-01 00:00:00
abstract：:Alzheimer's disease (AD) is the leading cause of dementia and the most common neurodegenerative disorder. AD is mostly a sporadic disorder and its main risk factor is age, but mutations in three genes that promote the accumulation of the amyloid-β (Aβ42) peptide revealed the critical role of amyloid precursor protein ...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
doi：10.1016/j.expneurol.2015.05.013
更新日期：2015-12-01 00:00:00
abstract：:Regeneration in the peripheral nervous system offers unique opportunities and challenges to medicine. Compared to the central nervous system, peripheral axons can and do regenerate resulting in functional recovery, especially if the distance to target is short as in distal limb injuries. However, this regenerative cap...
journal_title：Experimental neurology
pub_type： 社论
doi：10.1016/j.expneurol.2009.12.001
更新日期：2010-05-01 00:00:00
