Abstract：
:Acute exposure of peripheral axons to the free radical Nitric Oxide (NO) may trigger conduction block and, if prolonged, Wallerian degeneration. It was hypothesized that this neurotoxic effect of NO may be due primarily to energy restriction by inhibition of mitochondrial respiration. We compared the neurotoxic effect of NO with the effect of the mitochondrial uncoupler 2,4-dinitrophenol (DNP) on electrically active axons of mouse sciatic nerve. The right tibial nerve was stimulated at the ankle. Muscle responses were recorded from plantar muscles and ascending nerve action potentials were recorded form the exposed sciatic nerve by means of a hook electrode. The sciatic nerve was focally immersed over a length of 1 cm in either phosphate buffered saline (PBS), a solution of approximately 4 microM NO obtained from 10 mM of the NO-donor DETA NONOate, or a solution of up to 1 mM DNP. Following 3 hours of 200 Hz stimulation, the nerves were washed in PBS for 1 hour, the surgical wounds were closed and the mice were left to recover. Following repetitive stimulation in PBS, the nerve responses recovered within 1 hour and the muscle responses within 1 day. The effects of focal acute exposure to NO or DNP were similar: (i) a transient conduction failure that rapidly normalized within one hour of washout and (ii) subsequent Wallerian degeneration of some axons confirmed at morphological studies. Taken together, these data support the hypothesis that neurotoxicity may be caused by energy restriction. Since the pharmacologic effect of NO and DNP was only transient, our data suggest that even a brief period of focal energy restriction can trigger Wallerian degeneration.
journal_name
Exp Neuroljournal_title
Experimental neurologyauthors
Alvarez S,Moldovan M,Krarup Cdoi
10.1016/j.expneurol.2008.03.022subject
Has Abstractpub_date
2008-07-01 00:00:00pages
166-78issue
1eissn
0014-4886issn
1090-2430pii
S0014-4886(08)00123-4journal_volume
212pub_type
杂志文章abstract：:Dopamine (DA) release and metabolism within the substantia nigra (SN) were studied in normal rats, rats with unilateral 6-hydroxydopamine (6-OHDA) lesions, and 6-OHDA-lesioned rats treated with glial cells line-derived neurotrophic factor (GDNF). Animals with > 99% DA depletions, as determined by apomorphine-induced c...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1997.6571
更新日期：1997-09-01 00:00:00
abstract：:Regeneration of axons in the peripheral nervous system is enhanced by the removal of glycosaminoglycan side chains (GAGs) of chondroitin sulfate proteoglycans. However, some axons regenerate poorly despite such treatment, suggesting the existence of additional inhibitors. We compared the effects of enzymatic removal o...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2005.04.007
更新日期：2005-10-01 00:00:00
abstract：:We conducted a quantitative study of the trochlear motoneurons and the myotube clusters in the corresponding superior oblique muscle of the Japanese quail, before, during, and after the period of normally occurring motoneuron degeneration. A ratio of approximately 1:1 between myotube clusters and neurons was observed ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(85)90063-9
更新日期：1985-10-01 00:00:00
abstract：:Parameters related to the capacity and the rate of uptake of calcium ions by the sarcoplasmic reticulum were measured in skinned extensor digitorum longus fibers of control and myodystrophic mice. Single fibers were isolated and skinned in a relaxing solution and mounted on a force transducer and apparatus for changin...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(85)90140-2
更新日期：1985-01-01 00:00:00
abstract：:The major neutral and acidic cerebellar lipids were studied in audiogenic seizure (AGS)-resistant C57BL/6 (B6) and AGS-susceptible DBA/2J (D2) mice. These cerebellar lipids were also studied in the D2.B6- Iasb congenic mice and in the B6D2F1 hybrids that are mostly AGS resistant. Except for the Iasb gene, which inhibi...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(84)90206-1
更新日期：1984-06-01 00:00:00
abstract：:Although axons lose some of their intrinsic capacity for growth after their developmental period, some axons retain the potential for regrowth after injury. When provided with a growth-promoting substrate such as a peripheral nerve graft (PNG), severed axons regenerate into and through the graft; however, they stop wh...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2012.09.011
更新日期：2013-01-01 00:00:00
abstract：:After optic nerve transection beta cells of cat retinal ganglion cells (RGCs) suffer from rapid cell death from 3 to 7 days, whereas alpha cells gradual cell death until 14 days. Here we report electrophysiological properties of Y- (morphological alpha) and X- (morphological beta) cells at 5 and 14 days after axotomy ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2002.7958
更新日期：2002-09-01 00:00:00
abstract：:Adult neurogenesis is modulated by growth factors, physical conditions, and other alterations in the physical microenvironment. We studied the effects of focal ischemia on neurogenesis in the subventricular zone (SVZ), olfactory bulb (OB), and hippocampal dentate gyrus (DG) (known to be persistent neurogenic regions) ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2006.03.012
更新日期：2006-05-01 00:00:00
abstract：:Alzheimer's disease is associated with an age-related accumulation of Abeta and inflammation. The inflammatory mediator, TNFalpha activates a signaling cascade involving NFkappaB translocation to the nucleus and a beneficial or detrimental transcriptional response, depending on the age of the neurons and the type of s...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2008.05.007
更新日期：2008-09-01 00:00:00
abstract：:Quisqualate (Quis) and other excitotoxins such as ibotenate and N-methyl aspartate, have been used to destroy neurons in the area of the nucleus basalis magnocellularis (NBM) in order to study the relationship between loss of cholinergic neurons in the basal forebrain and various behavioral deficits, including learnin...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1994.1046
更新日期：1994-03-01 00:00:00
abstract：:We studied local autoimmune reactions in rat sciatic nerve after two successive injuries at the same site. The behavioral consequences of these injuries were also examined. We found that repetitive injuries had a moderately adverse effect on function and were accompanied by local autoimmune reactions. A causal relatio...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(85)90200-6
更新日期：1985-05-01 00:00:00
abstract：:Huntington's disease (HD) is a progressive neurodegenerative disorder characterized by chorea, psychiatric disturbances, and dementia. It is caused by a polyglutamine repeat expansion in the huntingtin protein. The striatum is a major site of neuronal loss in HD, but the mechanisms underlying the neurodegenerative pro...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2000.7434
更新日期：2000-09-01 00:00:00
abstract：:Neonatal stroke is increasingly recognized in preterm and term infants but the ability to study this condition has been limited by the technical challenges in developing suitable animal models. In the current study we report the use of transient filament middle cerebral artery occlusion for 1.5 h in 10-day-old rat pup...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2006.06.004
更新日期：2006-12-01 00:00:00
abstract：:Axonal injury is present in essentially all clinically significant cases of traumatic brain injury (TBI). While no effective treatment has been identified to date, experimental TBI models have shown promising axonal protection using immunosuppressants FK506 and Cyclosporine-A, with treatment benefits attributed to cal...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2016.06.011
更新日期：2016-09-01 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 age-dependent effects of sympathetic superior cervical ganglionectomy on smooth muscle alpha-adrenoceptor contractile responses were investigated in Müller's muscle in the superior eyelid of the Sprague-Dawley rat. Ganglionectomies in juvenile (32 days) and adult (70 days) rats produced sustained sympathetic dener...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(86)90031-2
更新日期：1986-01-01 00:00:00
abstract：:The ventrolateral orbital cortex (VLO) is part of an endogenous analgesic system consisting of an ascending pathway from the spinal cord to VLO via the thalamic nucleus submedius (Sm) and a descending pathway to the spinal cord relaying in the periaqueductal gray (PAG). This study examines whether activation of D(1)-l...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2008.09.018
更新日期：2009-01-01 00:00:00
abstract：:Immune rejection of transplanted material is a potential complication of organ donation. In response to tissue transplantation, immune rejection has two components: a host defense directed against the grafted tissue and an immune response from the grafted tissue against the host (graft vs host disease). To treat immun...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/s0014-4886(03)00128-6
更新日期：2003-08-01 00:00:00
abstract：:Peripheral nerves have the unique capability to regenerate after injury. Insights into regeneration of peripheral nerves after injury may have implications for neurodegenerative diseases of the nervous system. In this study, we analyzed the expression and function of desmoplakin in peripheral nerve regeneration. Desmo...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2014.12.005
更新日期：2015-02-01 00:00:00
abstract：:The antinociceptive properties of a new synthetic dipeptide (N-hexanoyl-5-hydroxytryptophyl-5-hydroxytryptophan amide, or 5-HTP-DP-hex) were studied in rats by an electrophysiological method. After an i.p. injection of alpha-chloralose and urethane, the animals were prepared for stereotaxic approach to the nucleus ven...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(87)90214-7
更新日期：1987-06-01 00:00:00
abstract：:Many reports indicate that GM1 ganglioside is effective in reducing CNS ischemic injury in animal models. These models employ invasive surgery to induce ischemic damage in otherwise healthy animals. The purpose of this study was to determine if the beneficial effects of GM1 could be generalized to Spontaneously Hypert...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1994.1045
更新日期：1994-03-01 00:00:00
abstract：:Potassium and caffeine contractures of isolated small bundles (100 to 200 micron diameter) of muscle fibers isolated from the diaphragm of normal and dystrophic (C57BL/6J dy2J/dy2J) mice were compared. In diaphragms of pathologic mice (3 to 5 months old) the resting potential, the characteristics of the twitch, and so...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(84)90126-2
更新日期：1984-03-01 00:00:00
abstract：:Synaptic reorganization of mossy fibers following kainic acid (KA) administration has been reported to contribute to the formation of recurrent excitatory circuits, resulting in an epileptogenic state. It is unclear, however, whether KA-induced mossy fiber sprouting results from neuronal cell loss or the seizure activ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1999.7251
更新日期：2000-01-01 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 kindling phenomenon, i.e., the progressive development of focal and secondarily generalized seizures upon repeated electrical stimulation of a limbic brain region, occurs in various species, but with marked differences in kindling rate between species and also within the same species. In rats, differences in kindl...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1998.6948
更新日期：1998-12-01 00:00:00
abstract：:Extrinsic factors appear to contribute to the lack of regeneration in the injured adult spinal cord. It is likely that these extrinsic factors include a group of putative growth inhibitory molecules known as chondroitin sulfate proteoglycans (CSPGs). The aims of this study were to determine: (1) the consequences of sp...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1999.7184
更新日期：1999-11-01 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：:Proximal axotomy in adult animals results in delayed death of motor neurons. Features characteristic of both necrosis and apoptosis have been described in motor neurons of the spinal cord following proximal avulsion of the ventral roots. We have previously demonstrated that a genomic herpes simplex virus (HSV)-based v...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2000.7597
更新日期：2001-04-01 00:00:00
abstract：:Parkinson's disease (PD) is a prevalent neurodegenerative disorder characterized by a progressive and extensive loss of dopaminergic (DA) neurons in the substantia nigra pars compacta (SNpc) and their terminals in the striatum, which results in debilitating movement disorders. This devastating disease affects over 1 m...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
doi：10.1016/j.expneurol.2013.03.016
更新日期：2013-09-01 00:00:00
abstract：:This study examined the effect of experimental diabetes on the anterograde and retrograde axonal transport of phosphofructokinase activity. Rats with streptozotocin-induced diabetes of 4 weeks duration showed phosphofructokinase activity accumulation deficits both proximal (53% and 65% in two separate experiments) and...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(87)90180-4
更新日期：1987-04-01 00:00:00
