Abstract：
:Genetic and protein studies have indicated abnormalities in alpha-synuclein in neurodegenerative diseases. However, the developmental localization and cellular role of synuclein isoforms is contentious. We investigated the cellular localization of alpha-, beta-, and gamma-synuclein in developing cultured rat neurons and following axonal transection of relatively mature neurons, a model that disrupts the axonal cytoskeleton and results in regenerative sprouting. Cortical neurons were grown up to 21 days in vitro (DIV). Axon bundles at 21 DIV were transected and cellular changes examined at 4 and 24 h post-injury. Immunohistochemistry demonstrated that alpha- and beta-synuclein were localized to cellular cytosol and growth cones at 3DIV, with accumulating puncta-like labeling within axons and growth cones by 10-21DIV. In contrast, gamma-synuclein immunoreactivity was limited at all time points. By 21DIV, alpha- and beta-synuclein were present in the same neurons but largely in separate subregions, only 26% of puncta contained both alpha- and beta-synuclein immunoreactivity. Less than 20% of alpha-, beta-, and pan-synuclein immunoreactive puncta directly colocalized to synaptophysin profiles at 10DIV, decreasing to 10% at 21DIV. Both alpha- and beta-synuclein accumulated substantially within damaged axons at 21DIV and were localized to cytoskeletal abnormalities. At latter time points post-injury, alpha- and beta-synuclein immunoreactive puncta were localized to growth cone-like structures in regenerating neurites. This study shows that alpha- and beta-synuclein have a precise localization within cortical neurons and are generally nonoverlapping in their distribution within individual neurons. In addition, synuclein proteins accumulate rapidly in damaged axons and may have a role in regenerative sprouting.
journal_name
Exp Neuroljournal_title
Experimental neurologyauthors
Quilty MC,Gai WP,Pountney DL,West AK,Vickers JCdoi
10.1016/s0014-4886(03)00108-0keywords:
subject
Has Abstractpub_date
2003-07-01 00:00:00pages
195-207issue
1eissn
0014-4886issn
1090-2430pii
S0014488603001080journal_volume
182pub_type
杂志文章abstract：:The effects of superior cervical ganglion stimulation and the local application of norepinephrine or its antagonist propranolol were studied in 18 pineal cells. In 61% of the pineal cells, stimulation elicited excitation; the same cells also responded by excitation to norepinephrine ejection. When stimulation and nore...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(85)90149-9
更新日期：1985-12-01 00:00:00
abstract：:Human recombinant activated factor-VII (rFVIIa) has been used successfully in the treatment of spontaneous intracerebral hemorrhage. In addition, there is increasing interest in its use to treat uncontrolled bleeding of other origins, including trauma. The aim of this study was to evaluate the safety and potential eff...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2007.12.019
更新日期：2008-04-01 00:00:00
abstract：:Myelin accelerates action potential conduction velocity and provides essential energy support for axons. Unfortunately, myelin and myelinating cells are often vulnerable to injury or disease, resulting in myelin damage, which in turn can lead to axon dysfunction, overt pathology and neurological impairment. Inflammati...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
doi：10.1016/j.expneurol.2016.05.001
更新日期：2016-09-01 00:00:00
abstract：:Thyroid hormones and spermidine, a motor neuron trophic polyamine (PA), have been shown to enhance peripheral motor nerve regeneration; however, the mechanism by which these treatment modalities exert their effect is unknown. Similarities in treatment outcome suggest that these molecules may be working via a common me...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2004.05.024
更新日期：2004-09-01 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：:Neuropathic pain is common after traumatic injuries to the cauda equina/conus medullaris and brachial plexus. Clinically, this pain is difficult to treat and its mechanisms are not well understood. Lesions to the ventral roots are common in these injuries, but are rarely considered as potential contributors to pain. W...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2006.11.003
更新日期：2007-03-01 00:00:00
abstract：:The effects of a very low oral dose of Al on spatial learning and neurogenesis were evaluated in a transgenic mouse (Tg 2576) model of Alzheimer disease. At 5 months of age, wild and Tg 2576 mice received a diet supplemented with Al lactate at 0 and 1 mg/g of diet for 120 days. The experimental groups (n=7-8) were: co...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2008.08.017
更新日期：2008-12-01 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：:Triggering receptor expressed on myeloid cells-2 (TREM2) was a newly identified receptor expressed on microglia. Several observations support the hypothesis that TREM2 variation may confer susceptibility to Parkinson's disease (PD). Therefore, in this paper, we explored the role of TREM2 in the 1-methyl-4-phenyl-1,2,3...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2018.01.016
更新日期：2018-04-01 00:00:00
abstract：:Ethanol exposure profoundly affects learning and memory and neural plasticity. Key players underlying these functions are neurotrophins. The present study explored the effects of ethanol on the distribution of neurotrophins in the cerebral cortex of the adult rat. Age- and weight-matched pairs of adult male, Long-Evan...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2006.12.022
更新日期：2007-04-01 00:00:00
abstract：:Peripheral nerve regeneration proceeds through a series of phases which include axonal sprouting, elongation, and maturation. Each phase requires interaction between intrinsic properties of the injured neuron and nonneural elements in the environment into which the nerve grows. It has been difficult, however, to separ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(83)90251-0
更新日期：1983-10-01 00:00:00
abstract：:Abnormal corticostriatal plasticity is a key mechanism of L-DOPA-induced dyskinesia (LID) in Parkinson's disease (PD). Antagonists at glutamatergic α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors, such as IEM 1460, reduce induction and expression of dyskinesia in rat and non-human primate models ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2013.01.019
更新日期：2013-09-01 00:00:00
abstract：:Several lines of evidence have demonstrated beneficial effects of the hematopoietic factor G-CSF in experimental stroke. A conclusive demonstration of this effect in G-CSF deficient mice is, however, lacking. We therefore investigated the effect of G-CSF deficiency on infarct volumes, functional recovery, mRNA and pro...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2009.03.018
更新日期：2009-06-01 00:00:00
abstract：:Osteogenic protein-1 (OP-1), a member of the transforming growth factor-beta (TGF-beta) superfamily, has been demonstrated to stimulate dendrite growth from sympathetic neurons in culture. However, it is not known whether OP-1 affects dendrite growth from central nervous system neurons. Therefore we quantified axon an...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1999.7194
更新日期：1999-11-01 00:00:00
abstract：:Nitrosative stress contributes to nerve conduction slowing, thermal hypoalgesia, and impaired nitrergic innervation in animal models of Type 1 diabetes. The role for reactive nitrogen species in Type 2 diabetes-associated neuropathy remains unexplored. This study evaluated the role for nitrosative stress in functional...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2007.03.019
更新日期：2007-06-01 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：:While past neuroimaging methods have contributed greatly to our understanding of brain function after traumatic brain injury (TBI), resting state functional MRI (rsfMRI) connectivity methods have more recently provided a far more unbiased approach with which to monitor brain circuitry compared to task-based approaches...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2015.12.020
更新日期：2016-03-01 00:00:00
abstract：:Studies of the effects of lesions of the parietal cortex suggest that this region plays a critical role in visuomotor guidance, whereas experiments on the effects of disconnecting this region from visual input have been inconsistent in supporting this hypothesis. In the present experiment, monkeys with a unilateral oc...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(83)90161-9
更新日期：1983-07-01 00:00:00
abstract：:We have previously demonstrated that systemic administration of testosterone propionate (TP) to adult hamsters accelerates the rate of facial nerve regeneration following crush axotomy of the facial nerve at its exit from the stylomastoid foramen. In this study, we utilized flutamide, a potent nonsteroidal antiandroge...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1995.1016
更新日期：1995-06-01 00:00:00
abstract：:Silent strokes occur more frequently than classic strokes; however, symptoms may go unreported in spite of lasting tissue damage. A silent stroke may indicate elevated susceptibility to recurrent stroke, which may eventually result in apparent and lasting impairments. Here we investigated if multiple silent strokes to...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2012.05.007
更新日期：2012-08-01 00:00:00
abstract：:Rats were injected with capsaicin or solvent on the 2nd day of life. Nine weeks later both animal groups were further subdivided: one was untreated and the other group underwent surgery consisting in either (a) removal of one sternohyoid superior muscle or (b) a sham operation. The sternohyoid superior muscles were re...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(85)90124-4
更新日期：1985-04-01 00:00:00
abstract：:In human diabetes, degenerative and functional disorders of the central nervous system, including depression, are common findings. Defective dentate gyrus (DG) neurogenesis is associated with affective-related disorders and depression. We previously demonstrated reduced DG neurogenesis in a pharmacological type 1 diab...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2007.11.009
更新日期：2008-04-01 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 effect of sinusoidal magnetic field stimulation on regeneration of the rat sciatic nerve was studied. Rats were exposed, after crush lesioning of the nerve, between a pair of Helmholtz coils to a 50 Hz magnetic field of 0.2 mT or 0.4 mT, respectively. Regeneration of the sciatic nerve was measured by the "pinch te...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(91)90132-v
更新日期：1991-06-01 00:00:00
abstract：:Mitochondria actively participate in neurotransmission by providing energy (ATP) and maintaining normative concentrations of reactive oxygen species (ROS) in both presynaptic and postsynaptic elements. In human and animal epilepsies, ATP-producing respiratory rates driven by mitochondrial respiratory complex (MRC) I a...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2013.11.005
更新日期：2014-01-01 00:00:00
abstract：:The ST14A cell line was previously derived from embryonic day 14 rat striatal primordia by retroviral transduction of the temperature-sensitive SV40 large T antigen. We showed that cell division and expression of nestin persists at 33 degrees C, the permissive temperature, whereas cell division ceases, nestin expressi...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2000.7551
更新日期：2001-02-01 00:00:00
abstract：:The depressant effects of iontophoretically applied dopamine and noradrenaline on glutamate-induced neuronal firing in the amygdaloid complex of cats were significantly reduced 1 and 2 h after induction of a local epileptiform afterdischarge of the kind used in kindling. Neuronal excitation by glutamate and depression...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(84)90059-1
更新日期：1984-01-01 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：:Exposure to early life stress (ELS), such as childhood abuse and neglect is a well established major risk factor for developing psychiatric and behavioral disorders later in life. Both prenatal and postnatal stressors have been shown to have a long-lasting impact on adult pathological states where the type and timing ...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
doi：10.1016/j.expneurol.2014.09.001
更新日期：2015-06-01 00:00:00
abstract：:The regulation of perinatal glia limitans (GL) reformation by interleukin-1beta (IL-1beta) following prenatal neural trauma in the mouse was studied in lesioned fetal mice by immunocytochemistry and computer-assisted image analysis for presence and distribution of astrocytes and IL-1beta immunoreactivity (ir). Astrocy...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1997.6470
更新日期：1997-06-01 00:00:00
