Abstract：
:Neurogenesis continues in various regions of the central nervous system (CNS) throughout life. As the mitogen basic fibroblast growth factor (bFGF) can proliferate neuronal precursors of CNS neurons in culture, and is also upregulated within adult dorsal root ganglia following axotomy, it is possible that the postnatal dorsal root ganglia contain bFGF-responsive neuronal precursors. We undertook cell culture of postnatal mouse dorsal root ganglia to demonstrate neurogenesis. Basic FGF induced a cellular proliferative response in dorsal root ganglia cell culture. After 2 weeks in serum-free medium containing bFGF, neurons were rarely observed. However, following removal of bFGF and addition of trophic factors, many cells were observed that morphologically resembled dorsal root ganglia neurons, stained for neuronal markers, and generated action potentials. Furthermore, bromodeoxyuridine, used as a marker of cytogenesis, was detected in neurofilament-160(+) and/or microtubule-associated protein-2(+) cells that morphologically resembled neurons. In addition to bFGF, epidermal growth factor, nerve growth factor, and sonic hedgehog were also capable of generating spherical cell clusters that contained cells that stained for neuronal markers following the addition of trophic factors. These results suggest that early postnatal dorsal root ganglia contain neural precursors that appear to proliferate in response to various factors and can then be induced to differentiate into neurons. In conclusion, the existence of neural precursors and the possibility of neurogenesis in postnatal dorsal root ganglia may provide a greater range of plasticity available to somatosensory systems during growth or following injury, perhaps to replace ineffectual or dying neurons.
journal_name
Exp Neuroljournal_title
Experimental neurologyauthors
Namaka MP,Sawchuk M,MacDonald SC,Jordan LM,Hochman Sdoi
10.1006/exnr.2001.7761keywords:
subject
Has Abstractpub_date
2001-11-01 00:00:00pages
60-9issue
1eissn
0014-4886issn
1090-2430pii
S0014-4886(01)97761-1journal_volume
172pub_type
杂志文章abstract：:In the June issue of Experimental Neurology, Nizzardo and colleagues demonstrate that the beta-lactam antibiotic ceftriaxone is neuroprotective in a mouse model of spinal muscular atrophy. Here I review their main findings and the relevance to previous and future work on motor neuron disorders and for developing thera...
journal_title：Experimental neurology
pub_type： 评论,杂志文章,评审
doi：10.1016/j.expneurol.2011.06.002
更新日期：2011-09-01 00:00:00
abstract：:Traumatic brain injuries (TBI) sustained during peri-adolescent development produce lasting neuro-behavioral changes that render individuals at an increased risk for developing substance abuse disorders. Experimental and clinical evidence of a prolonged period of hypodopaminergia after TBI have been well documented, b...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2017.08.003
更新日期：2017-11-01 00:00:00
abstract：:The electromyographic (EMG) activity of the gastrocnemius and tibialis anterior muscles was recorded from normal geriatric subjects and from hemiplegic patients subjected to a continuous back-and-forth movement of the platform on which they stood. The platform oscillated at a fixed frequency of 0.5 Hz. Movement amplit...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(88)90156-2
更新日期：1988-02-01 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：:In vivo imaging of patients with Alzheimer's disease using positron emission tomography (PET) demonstrates progressive reductions in brain glucose metabolism and blood flow in relation to dementia severity, more so in association than primary cortical regions. These reductions likely follow regional synaptic loss or d...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
doi：10.1006/exnr.1996.0180
更新日期：1996-11-01 00:00:00
abstract：:To determine whether or not brain damage is likely to occur in the repeated apneic episodes experienced by some alcoholics during intoxicated sleep, rats were anesthetized with alcohol and subjected to repeated episodes to asphyxia. Each episode lasted 90 s, arterial PO2 was less than 50 mm Hg for 60 s, and 30 episode...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(84)90017-7
更新日期：1984-04-01 00:00:00
abstract：:Five subjects matched the force of a sustained isometric contraction with a contraction of the contralateral muscle. Estimates of the sustained constant forces increased with time despite the direction to disregard the increased effort associated with the fatiguing contraction. These instructions did not produce a not...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(83)90278-9
更新日期：1983-08-01 00:00:00
abstract：:Radiosurgery is an important non-invasive procedure for the treatment of tumors and vascular malformations. However, in addition to killing target tissues, cranial irradiation induces damage to adjacent healthy tissues leading to neurological deterioration in both pediatric and adult patients, which is poorly understo...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
doi：10.1016/j.expneurol.2012.03.011
更新日期：2012-06-01 00:00:00
abstract：:The question of whether or not the development of dystrophic muscles is similar to that of normal muscles, prior to the manifestations of the symptoms of the disease, is investigated here. The developmental change in the activity of succinate dehydrogenase was therefore measured in individual fibers of prospectively d...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(87)90020-3
更新日期：1987-01-01 00:00:00
abstract：:After spinal cord injury, proteoglycans with growth-inhibitory glycosaminoglycan (GAG-) side chains in scar tissue limit spontaneous axonal sprouting/regeneration. Interventions that reduce scar-related inhibition facilitate an axonal growth response and possibly plasticity-based spinal cord repair. Xylosyltransferase...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2012.06.006
更新日期：2012-09-01 00:00:00
abstract：:Five female adult Macaca nemestrina monkeys, given a unilateral intracarotid (ic) infusion of 2.3-3.5 mg of MPTP-HCl, were studied for 6-8 years. Two to 3 days after MPTP, the animals developed hemiparkinsonism characterized by rigidity and flexed posture of the arm contralateral to the side of infusion with episodes ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1998.6845
更新日期：1998-08-01 00:00:00
abstract：:The ability to differentiate neural stem cells (NSCs) into dopamine neurons is fundamental to their role in cell replacement therapies for neurodegenerative disorders such as Parkinson's disease. We show here that when a clonal line (C17.2) of undifferentiated NSCs is transplanted into the intact or 6-hydroxydopamine-...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2002.7989
更新日期：2002-09-01 00:00:00
abstract：:Serotonergic neurons were recorded in the nucleus centralis superior (NCS) in freely moving cats and were initially identified on-line by their slow and regular spontaneous activity (mean 2.55 +/- 0.21 spikes/s). Discharge rates of NCS serotonergic neurons were highest during active waking (AW) (mean 2.94 +/- 0.28 spi...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/S0014-4886(84)90100-6
更新日期：1984-02-01 00:00:00
abstract：:Neurotrophic factors as candidates for ALS therapeutics have previously been studied in the context of attempts to slow disease progression. For a variety of reasons, clinical trials of neurotrophic factors have failed to show efficacy in ALS patients. Previous studies in Parkinson's Disease (PD) models have shown pro...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2019.113091
更新日期：2020-01-01 00:00:00
abstract：:Posttraumatic inflammation has been implicated in secondary tissue damage after spinal cord injury (SCI). Tumor necrosis factor-alpha (TNF-alpha) is a key inflammatory mediator that is increasingly expressed after SCI. The effect of TNF-alpha is mediated through its receptors TNFR1 (p55) and TNFR2 (p75). However, whet...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/s0014-4886(03)00135-3
更新日期：2003-10-01 00:00:00
abstract：:Salicylate intoxication is a cause of tinnitus and comorbidly associated with anxiety in humans. In a previous work, we showed that salicylate induces anxiety-like behavior and hippocampal type 2 theta oscillations (theta2) in mice. Here we investigate if the anxiogenic effect of salicylate is dependent on age and pre...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2020.113175
更新日期：2020-04-01 00:00:00
abstract：:Relatively few behavioral deficits are apparent in subjects with hereditary absence of the corpus callosum (CC). The anterior commissure (AC) has been suggested to provide an extracallosal route for the transfer of interhemispheric information in subjects with this congenital defect. Anterior commissure size, axon num...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1997.6564
更新日期：1997-08-01 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：:A graded contusion spinal cord injury (SCI) was created in the adult rat spinal cord using the Infinite Horizons (IH) impactor to study the correlation between injury severity and anatomical, behavioral, and electrophysiological outcomes. Adult Fisher rats were equally divided into five groups and received contusion i...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2004.08.026
更新日期：2005-02-01 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：:The progressive loss of the nigrostriatal pathway is a distinguishing feature of Parkinson's disease. Because terminal field loss appears to precede cell body loss, we tested whether the mouse mutant Wld(S), which delays axonal degeneration in a variety of disorders, would ameliorate nigrostriatal degeneration followi...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2006.05.017
更新日期：2006-11-01 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：: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：:Nerve growth factor (NGF) is well known to be involved in the development, survival, and maintenance of sympathetic and neural crest-derived sensory neurons in the peripheral nervous system. Over the last 10-15 years, however, the role of NGF as a necessary trophic substrate for magnocellular cholinergic neurons in th...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
doi：10.1016/0014-4886(88)90231-2
更新日期：1988-12-01 00:00:00
abstract：:Glial cell line-derived neurotrophic factor (GDNF) is a potent survival factor for nigrostriatal dopaminergic, central cholinergic, and motoneurons. GDNF also prevents the neuronal loss in experimental animal models for Parkinson's disease (PD). We have now investigated the GDNF gene for possible mutations in a group ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1998.6857
更新日期：1998-08-01 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：:The olfactory bulb is the target of neural progenitor cells that are generated in the subventricular zone of the lateral ventricle in the adult brain. This permanent neurogenesis is likely influenced by olfactory input to the bulb since previous studies have shown that cell proliferation and/or apoptotic death are sti...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2005.03.004
更新日期：2005-08-01 00:00:00
abstract：:Aberrant accumulation of neurofilaments is a feature of human motor neuron diseases. Experimentally motor neuron disease can be induced in transgenic mice by overexpressing the mouse neurofilament light subunit (NF-L), the human heavy subunit (NF-H), or mouse peripherin. Here we describe that mice harboring a bacteria...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/s0014-4886(03)00206-1
更新日期：2003-11-01 00:00:00
abstract：:One of the major histopathological hallmarks of Alzheimer's disease (AD) is redundant senile plaques mainly composed of beta-amyloid (Abeta) aggregates. Alternative cleavage of the amyloid precursor protein (APP), occurring in both normal and AD subjects, results in the generation and secretion of soluble APP (sAPP) a...
journal_title：Experimental neurology
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1016/s0014-4886(03)00027-x
更新日期：2003-09-01 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
