Abstract：
:Spinal cord injury (SCI) initiates biochemical events that lead to an increase in extracellular excitatory amino acid concentrations, resulting in glutamate receptor-mediated excitotoxic events. These receptors include the three groups of metabotropic glutamate receptors (mGluRs). Group I mGluR activation can initiate a number of intracellular pathways that increase neuronal excitability. Group II and III mGluRs may function as autoreceptors to modulate neurotransmission. Thus, all three groups may contribute to the mechanisms of central sensitization and chronic central pain. To begin evaluating mGluRs in SCI, we quantified the changes in mGluR expression after SCI in control (naive), sham, and impact injured adult male Sprague-Dawley rats (200-250 g). SCI was produced at spinal segment T10 with a New York University impactor (12.5-mm drop, 10-g rod of 2-mm diameter). Expression levels were determined by Western blot and immunohistochemistry analyses at the epicenter of injury, as well as segments rostral and caudal. The group I subtype mGluR1 was increased over control levels in segments rostral and caudal by postsurgical day (PSD) 7 and remained elevated through PSD 60. The group I subtype mGluR5 was unchanged in all segments rostral and caudal to the injury at every time point measured. Group II mGluRs were decreased compared to control levels from PSD 7 through PSD 60 in all segments. These results suggest that different subtypes of mGluRs have different spatial and temporal expression patterns following SCI. The expression changes in mGluRs parallel the development of mechanical allodynia and thermal hyperalgesia following SCI; therefore, understanding the expression of mGluRs after SCI may give insight into mechanisms underlying the development of chronic central pain.
journal_name
Exp Neuroljournal_title
Experimental neurologyauthors
Mills CD,Fullwood SD,Hulsebosch CEdoi
10.1006/exnr.2001.7721keywords:
subject
Has Abstractpub_date
2001-08-01 00:00:00pages
244-57issue
2eissn
0014-4886issn
1090-2430pii
S0014-4886(01)97721-0journal_volume
170pub_type
杂志文章abstract：:Substantial progress has been made towards understanding the molecular basis for limited endogenous central nervous system (CNS) axonal growth after injuries such as spinal cord trauma. Realization of the potential benefit of therapeutic interventions requires methods to assess axonal growth and functional reorganizat...
journal_title：Experimental neurology
pub_type： 评论,杂志文章,评审
doi：10.1016/j.expneurol.2008.02.017
更新日期：2008-06-01 00:00:00
abstract：BACKGROUND:The pathogenesis of pain in irritable bowel syndrome (IBS) is poorly understood and treatment remains difficult. We have previously reported that TTX-resistant (TTX-R) sodium channels in colon-specific dorsal root ganglion (DRG) neurons were sensitized and the expression of the endogenous hydrogen sulfide pr...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2013.06.027
更新日期：2013-10-01 00:00:00
abstract：:Purkinje neurons are a sensitive and specialised cell type important for fine motor movement and coordination. Purkinje cell damage manifests as motor incoordination and ataxia - a prominent feature of many human disorders including spinocerebellar ataxia and Huntington's disease. A correlation between Purkinje degene...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2013.08.001
更新日期：2013-11-01 00:00:00
abstract：:Ghrelin, a 28-amino acid peptide, is an endogenous ligand for the growth hormone secretagogue (GHS) receptor. Our previous data showed that ghrelin could inhibit apoptosis in Parkinson's disease (PD) models both in vitro and in vivo. There is now growing evidence that oxidative stress has a critical role in the etiolo...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2009.11.009
更新日期：2010-03-01 00:00:00
abstract：:Systemic administration of the amphetamine derivative p-chloroamphetamine (PCA) causes degeneration of 5-HT axon terminals in rat brain. The present study was designed to determine whether PCA induces neurotoxic effects by a direct action on 5-HT axon terminals. PCA was administered by microinjection directly into the...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/s0014-4886(05)80015-9
更新日期：1990-09-01 00:00:00
abstract：:Spinal axons in the larval sea lamprey regenerate following a complete spinal transection. It is not known whether regenerating growth cones require contact with cellular elements or whether the basement membrane and collagenous meninx primitiva which surround the spinal cord are sufficient for neurite out-growth. To ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(91)90114-r
更新日期：1991-04-01 00:00:00
abstract：:Multiple sclerosis (MS) and experimental autoimmune encephalomyelitis (EAE), an animal model of MS, are inflammatory demyelinating diseases of the central nervous system. The inflammatory attacks lead to glial dysfunction and death, axonal damage, and neurological deficits. Numerous studies in rat suggest that extrace...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2004.05.023
更新日期：2004-09-01 00:00:00
abstract：:The anatomical distribution and the content of dendrite bundles were studied in the spinal cord of adult rats. We injected retrogradely transported Cholera Toxin subunit B into muscles in order to label motoneurons and their dendrites. Twenty-one muscles in the trunk and in extremities were selected which are involved...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1996.0004
更新日期：1996-01-01 00:00:00
abstract：:Caspases are cysteine proteases involved in apoptotic cell death, and pharmacological caspase inhibition has been demonstrated to prevent neuronal cell death in certain experimental paradigms. In this study, the role of caspase-1 and -3 in the death of dopaminergic neurons derived from the E14 rat ventral mesencephalo...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2001.7749
更新日期：2001-09-01 00:00:00
abstract：:Vasoactive intestinal peptide (VIP) is a regulator of rodent embryogenesis during the period of neural tube closure. VIP enhanced growth in whole cultured mouse embryos; treatment with a VIP antagonist during embryogenesis inhibited growth and development. VIP antagonist treatment during embryogenesis also had permane...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2007.04.004
更新日期：2007-07-01 00:00:00
abstract：:Nerve growth factor (NGF) enhances neuronal survival during injury to the mature central and peripheral nervous systems, but its potential as a neuroprotective factor in the enteric nervous system (ENS) has not been examined. We used the trinitrobenzene sulfonic acid (TNBS)-induced model of colitis to examine if NGF-s...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2004.10.003
更新日期：2005-02-01 00:00:00
abstract：:Dementia and parkinsonism are late-onset symptoms associated with repetitive head injury, as documented in multiple contact-sport athletes. Clinical symptomatology is the likely phenotype of chronic degeneration and circuit disruption in the substantia nigra (SN). To investigate the initiating neuropathology, we hypot...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2011.12.003
更新日期：2012-03-01 00:00:00
abstract：:Infants born very preterm are at high risk for neurological deficits including cerebral palsy. In this study we assessed the neuroprotective effects of umbilical cord blood cells (UCBCs) and optimal administration timing in a fetal sheep model of preterm brain injury. 50 million allogeneic UCBCs were intravenously adm...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2016.06.017
更新日期：2016-09-01 00:00:00
abstract：:The blood-brain barrier (BBB) constitutes a neurovascular unit formed by microvascular endothelial cells, pericytes, and astrocytes. Brain pericytes are important regulators of BBB integrity, permeability, and blood flow. Pericyte loss has been implicated in injury; however, how the crosstalk among pericytes, endothel...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2019.03.014
更新日期：2019-07-01 00:00:00
abstract：:Crush of sciatic nerve in rabbits supported by morphologic and electrophysiologic data was used to evaluate the effects of ACTH4-10 on nerve fiber regeneration. Treated animals showed a statistically significant higher regeneration rate than did control rabbits. Fiber density and mean diameters of myelinated nerve fib...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(88)90162-8
更新日期：1988-02-01 00:00:00
abstract：:Sulforaphane (SFN) is an organosulfur compound present in vegetables and has potent anti-oxidant and anti-inflammatory activities. This study was aimed at investigating the effect of treatment with SFN on inflammation and oxidative stress, and the potential mechanisms underlying the action of SFN in experimental autoi...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2013.10.002
更新日期：2013-12-01 00:00:00
abstract：:These experiments were completed as part of an NIH "Facilities of Research Excellence in Spinal Cord Injury" contract to support independent replication of published studies that could be considered for eventual clinical testing. Recent studies have reported that selective inhibition of the P2X7 receptor improves both...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2011.06.008
更新日期：2012-02-01 00:00:00
abstract：:Fifteen male mice (C57/Bl6J) were fed the liquid diet "Stardit" supplemented with vitamins together with phenytoin for 8 weeks; experimental animals and controls were pair-fed. After 8 weeks of treatment, the anesthetized animals were perfused with 3.5% glutaraldehyde. Tissue samples of the cerebral cortex (area 3), c...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(86)90026-9
更新日期：1986-01-01 00:00:00
abstract：:Spectral analysis is a mathematical method which contains and generalizes frequency analysis. The form of spectral analysis most applicable to EEG is tutorially presented, using both algebraic formulae and four simplified illustrative examples. The examples are each converted into an autocorrelogram and auto-spectrogr...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(63)90042-6
更新日期：1963-08-01 00:00:00
abstract：:The effects of aspirin or 5-hydroxytryptamine (5-HT)-related drugs on the dental pain induced by electrical stimulation of tooth pulp afferent fibers were assessed in conscious monkeys. The electrical current required for producing jaw opening is referred to as the pain threshold. Both systemic (25 to 75 mg/kg, i.p.) ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(84)90014-1
更新日期：1984-04-01 00:00:00
abstract：:The threshold current required for the excitation of visual cortex neurons in the vicinity (approximately 1 mm) of an intracortical stimulating electrode was measured as a function of the stimulus pulse duration in the anesthetized cat. For cortical neurons with latencies of activation from 0.4 to 3.4 ms and for stimu...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(83)90270-4
更新日期：1983-08-01 00:00:00
abstract：:The role of interferon-gamma (IFN-gamma) in the pathogenesis of multiple sclerosis and experimental autoimmune encephalomyelitis (EAE) is still controversial. We have studied the function of IFN-gamma and its receptor in the EAE model using two different IFN-gamma receptor knockout (IFN-gamma R(-/-)) mouse types: C57B...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2001.7815
更新日期：2001-12-01 00:00:00
abstract：:The basis for neuronal dysfunction following inflammatory demyelination of the central nervous system (CNS) remains poorly understood. We characterized the network response to white matter injury in the anterior visual pathway using an experimental model of optic neuritis (ON), as ON is often an early manifestation of...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2017.05.004
更新日期：2017-09-01 00:00:00
abstract：:The sciatic nerve of adult mice was transected and proximal and distal nerve stumps were sutured into a nontoxic bioresorbable nerve guide. Nerve guide lumens were either empty or filled with a gel containing 80% laminin and additional extracellular matrix components. Two weeks later cells in the L3 through L5 dorsal ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(85)90087-1
更新日期：1985-06-01 00:00:00
abstract：:In the human embryo, from approximately 6 weeks gestational age (GA), dopaminergic (DA) neurons can be found in the ventral mesencephalon (VM). More specifically, the post-mitotic neurons are located in the ventral part of the tegmentum (VT), whereas no mature DA neurons are found in the neighboring dorsal part. We us...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2005.12.023
更新日期：2006-04-01 00:00:00
abstract：:Noninvasive, targeted drug delivery to the brain can be achieved using transcranial focused ultrasound (FUS), which transiently increases the permeability of the blood-brain barrier (BBB) for localized delivery of therapeutics from the blood to the brain. Previously, we have demonstrated that FUS can deliver intraveno...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2013.05.008
更新日期：2013-10-01 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：:Transplantation of stem cells and immature cells has been reported to ameliorate tissue damage, induce axonal regeneration, and improve locomotion following spinal cord injury. However, unless these cells are pushed down a neuronal lineage, the majority of cells become glia, suggesting that the alterations observed ma...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2004.05.043
更新日期：2004-12-01 00:00:00
abstract：:The perirhinal cortex (PRh) has been suggested as a substrate for the expression of generalized clonic seizures in the late stages of kindling development (stages 4-5). Using the induction of Fos as a marker of neuronal activation, the PRh region was investigated after kindling or nonkindling electrical stimulation. N...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1998.6794
更新日期：1998-05-01 00:00:00
abstract：:In previous studies of our group, we have reported differential alterations in opioidergic receptor subtypes densities in infarcted and periinfarcted brain tissue following middle cerebral artery occlusion (MCAO) in mice. Other studies have also described subcortical alterations consecutive to focal cortical ischemia....
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2000.7400
更新日期：2000-08-01 00:00:00
