Abstract：
:Neural progenitor cells (NPCs) grafted to sites of spinal cord injury (SCI) extend numerous axons over long distances and form new synaptic connections with host neurons. In the present study we examined the myelination of axons emerging from NPC grafts. Rat embryonic day 14 (E14) multipotent NPCs constitutively expressing GFP were grafted into adult C5 spinal cord hemisection lesions; 3months later we examined graft-derived axonal diameter and myelination using transmission electron microscopy. 104 graft-derived axons were characterized. Axon diameter ranged from 0.15 to 1.70μm, and 24% of graft-derived axons were myelinated by host oligodendrocytes caudal to the lesion. The average diameter of myelinated axons (0.72±0.3μm) was significantly larger than that of non-myelinated axons (0.61±0.2μm, p<0.05). Notably, the G-ratio of myelinated graft-derived axons (0.77±0.01) was virtually identical to that of the normal, intact spinal cord described in published reports. These findings indicate that axons emerging from early stage neural grafts into the injured spinal cord recapitulate both the small/medium size range and myelin thickness of intact spinal cord axons.
journal_name
Exp Neuroljournal_title
Experimental neurologyauthors
Hunt M,Lu P,Tuszynski MHdoi
10.1016/j.expneurol.2017.07.005subject
Has Abstractpub_date
2017-10-01 00:00:00pages
69-73eissn
0014-4886issn
1090-2430pii
S0014-4886(17)30179-6journal_volume
296pub_type
杂志文章abstract：:After spinal cord injury (SCI), apoptosis of neurons and oligodendrocytes is associated with axonal degeneration and loss of neurological function. Recent data have suggested a potential role for FAS death receptor-mediated apoptosis in the pathophysiology of SCI. In this study, we examined the effect of FAS deficienc...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2005.08.020
更新日期：2005-12-01 00:00:00
abstract：:Secondary degeneration is a form of 'bystander' damage that can affect neural tissue both nearby and remote from an initial injury. Partial optic nerve transection is an excellent model in which to unequivocally differentiate events occurring during secondary degeneration from those resulting from primary CNS injury. ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2008.11.026
更新日期：2009-03-01 00:00:00
abstract：:Some forms of electrographic seizures are generated at the level of the cortical network. Neocortical kindling exhibits a resistance to produce generalized convulsive seizures, and therefore, it was rather difficult to use it to study the cortical epileptogenesis. Here, using supra-threshold cortical kindling, we repo...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2008.02.010
更新日期：2008-06-01 00:00:00
abstract：:In this study we have characterised the locomotor recovery, and temporal profile of cell loss, in a novel thoracic compression spinal cord injury (SCI) in the mouse. We have also shown that treatment with docosahexaenoic acid (DHA) is neuroprotective in this model of SCI, strengthening the growing literature demonstra...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2012.09.015
更新日期：2013-01-01 00:00:00
abstract：:GAP-43 is a neuronal protein whose synthesis is elevated during developmental and regenerative axon growth. We propose that one consequence of this increased synthesis may be the delivery of calmodulin-like proteins to the distal portions of the growing axon at an increased velocity; this is because calmodulin, which ...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
doi：10.1016/0014-4886(92)90243-j
更新日期：1992-01-01 00:00:00
abstract：:The long-term effects of partial denervation on the muscle fiber cross-sectional area, degree of axonal sprouting, and end-plate morphology were examined 1, 3, 6, 9, and 12 months postsurgery in rat plantaris muscle. After 1 month of partial denervation, mean cross-sectional areas of type I and type II myofibers were ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(92)90004-a
更新日期：1992-06-01 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：: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：:The increasing demand on diagnostic assays that are sensitive and specific for pathogenic antibodies, and the interest in identifying new antigens, prompted the development of cell-based assays for the detection of autoantibodies in myasthenia gravis and other autoimmune disorders. Cell-based assays were initially use...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
doi：10.1016/j.expneurol.2015.01.011
更新日期：2015-08-01 00:00:00
abstract：:Hypernatremic dehydration was induced in rabbits during a 3- to 5-day period resulting in mean plasma sodium concentrations of 187 meq/liter. The animals were then rehydrated during a 4-h period by intravenous administration of a 2.5% glucose or fructose solution. The water content of four regions of brain sample show...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(85)90215-8
更新日期：1985-02-01 00:00:00
abstract：:The piriform cortex is recognized to play critical roles in focal ictogenesis, both in animal models and in humans. We review here the contribution of in vitro studies performed on rodent brain tissue that were aimed at understanding the ictogenic properties of the piriform cortex and the contiguous olfactory areas. D...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
doi：10.1016/j.expneurol.2019.113014
更新日期：2019-11-01 00:00:00
abstract：:The expression of vasoactive intestinal peptide (VIP) and gastrin-releasing peptide (GRP) in the suprachiasmatic nucleus (SCN) changes depending on light. VIP mRNA increases and GRP mRNA decreases in the light phase, while they do not show change without light. In the present study we investigated the involvement of s...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2001.7759
更新日期：2001-10-01 00:00:00
abstract：:We examined the myelin repair potential of transplanted neural precursor cells derived from the adult human brain from tissue removed during surgery. Sections of removed brain indicated that nestin-positive cells were found predominantly in the subventricular zone around the anterior horns of the lateral ventricle and...
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：:We investigated whether administration of neurotrophin-3 (NT-3) and NMDA-2D-expressing units, found previously to enhance transmission in neonatal rat spinal cord, strengthens synaptic connections in the injured neonatal cord. We employed electrophysiological methods to evaluate the strength of synaptic transmission t...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2005.10.008
更新日期：2006-02-01 00:00:00
abstract：:Copyright ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1998.6843
更新日期：1998-06-01 00:00:00
abstract：:Dravet syndrome is a severe, early-onset epileptic encephalopathy frequently resulting from de novo mutations of SCN1A. Mice with heterozygous deletion of Scn1a (Scn1a+/-) model many features of Dravet syndrome, including spontaneous seizures and premature lethality. Scn1a+/- mice exhibit variable phenotype penetrance...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2018.10.010
更新日期：2019-01-01 00:00:00
abstract：:The postischemic time course of amyloid protein precursor (APP), beta-amyloid protein (beta-AP), and apolipoprotein E (APO-E) immunoreactivity were examined in comparison to neuronal necrosis in the selectively vulnerable hippocampal CA1 region of gerbils subjected to 10 min of bilateral carotid occlusion-induced fore...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1995.1062
更新日期：1995-09-01 00:00:00
abstract：:Paired-pulse potentiation was studied in the CA1 region of rats exposed prenatally to alcohol. Pregnant rats were fed a liquid diet containing 35% ethanol-derived calories on days 3 to 21 of gestation. Control animals were fed liquid diets without ethanol. When the pups of both groups were 40 to 60 days old, hippocamp...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(86)90203-7
更新日期：1986-08-01 00:00:00
abstract：:This study was undertaken as part of the NIH "Facilities of Research-Spinal Cord Injury" project to support independent replication of published studies. Here, we repeated a study reporting that a combinatorial treatment with transplants of Schwann cells, systemic delivery of Rolipram to enhance cyclic AMP levels, and...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2010.12.020
更新日期：2012-02-01 00:00:00
abstract：:Fatigue indices and succinic dehydrogenase (SDH) activities were determined in the extensor digitorum longus (EDL) and soleus muscles of the hind limb and the extensor carpi radialis longus of the forelimb in control and dystrophic mice aged 4 to 26 weeks. A good correlation was found between SDH activities and fatigu...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(85)90226-2
更新日期：1985-02-01 00:00:00
abstract：:The vibrissae of rats were shaved from one side of the face daily for 10 days. To see whether or not this treatment had an effect on crossed and uncrossed striatal afferent connections from the midbrain, the tract tracer horseradish peroxidase was applied to the caudate-putamen on day 11. When the tracer was deposited...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(86)90198-6
更新日期：1986-08-01 00:00:00
abstract：:Youth is a strong predictor of functional recovery after peripheral nerve repair, while adulthood is commonly associated with poor outcome. Identification of the factors responsible for this difference could form the basis for strategies to improve regeneration in adults. Preferential reinnervation of motor pathways b...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2000.7538
更新日期：2001-01-01 00:00:00
abstract：:Sympathetic innervation of lymphoid tissues is localized to specific tissue compartments, but little is known of the "factors" that are important in establishing this pattern during development. Numerous studies have shown interactions of nerve growth factor (NGF) with the immune system, which may include modulation o...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1997.6711
更新日期：1998-01-01 00:00:00
abstract：:An autoradiographic method is described for detecting changes in ornithine decarboxylase in axotomized superior cervical ganglion neurons of rats using [3H]difluoromethylornithine. An increase in binding to neurons was seen at 12 h and 1 day after crushing the postganglionic nerves. Binding returned to control values ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(86)90097-x
更新日期：1986-05-01 00:00:00
abstract：:The study investigates if alpha-lipoic acid is neuroprotective against chemotherapy induced neurotoxicity, if mitochondrial damage plays a critical role in toxic neurodegenerative cascade, and if neuroprotective effects of alpha-lipoic acid depend on mitochondria protection. We used an in vitro model of chemotherapy i...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2008.08.013
更新日期：2008-12-01 00:00:00
abstract：:We assessed the potential of different MRI measures to detect and quantify skeletal muscle changes with denervation in two mouse models of denervation/neurogenic atrophy. Acute complete denervation and chronic partial denervation were examined in calf muscles after sciatic nerve axotomy and in transgenic SOD1(G93A) mi...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2008.04.033
更新日期：2008-08-01 00:00:00
abstract：:Destruction of the entorhinal cortex (EC) triggers a number of cellular and molecular responses in the denervated hippocampus and dentate gyrus. The signals that trigger these changes are not known but could include physiological events that occur during the production of the injury or during the early postlesion peri...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1996.0082
更新日期：1996-05-01 00:00:00
abstract：:Status epilepticus (SE) in rats, along with chronic epilepsy, leads to the development of behavioral impairments resembling depressive disorder and/or attention deficit/hyperactivity disorder (ADHD), thus reflecting respective comorbidities in epilepsy patients. Suppressed neurotransmitter tone in the raphe nucleus (R...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2016.12.008
更新日期：2017-03-01 00:00:00
abstract：:Ischemic stroke is a devastating brain injury and an important cause of neurologic disability worldwide and across the lifespan. Despite the physical, social, and economic burdens of this disease there is only a single approved medicine for the treatment of acute stroke, and its use is unfortunately limited to the sma...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
doi：10.1016/j.expneurol.2014.09.017
更新日期：2015-06-01 00:00:00
abstract：:Administration of endogenous corticosterone to intact animals induces calbindin-D28k protein in the hippocampal CA1-CA2 subfields. The fact that this effect on calbindin-D28k was shown to be specific for the hippocampus argues for a receptor-mediated effect on gene expression. In addition, chronic pretreatment with co...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1997.6729
更新日期：1998-02-01 00:00:00
