Abstract：
:The ageing neuromuscular system is thought to undergo a continual process of reorganization as motoneurones are lost and surviving motor nerves reinnervate neighbouring denervated muscle fibres. However, the extent to which collateral reinnervation is able to compensate for neural deficits in the ageing individual is unknown. The ability of the senescent motoneurone to increase the size of its peripheral field was therefore investigated following transection of the right L5 ventral root in male Sprague Dawley rats aged 775 +/- 50 days. This procedure resulted in an extensive partial denervation of the right medial gastrocnemius muscle. After a recovery period of between 28 and 31 days the isometric contractile properties of surviving motor units were compared to control motor units from both the contralateral muscle and a group of unoperated control animals aged 791 +/- 39 days. Motor unit force was found to be unchanged after partial denervation and the absence of any alteration in motor unit size was confirmed by histological analysis. However, the time course of the isometric twitch was significantly longer for both fast and slow motor unit types and the conduction velocity of motoneurones innervating fast units was decreased following partial denervation. These results demonstrate that senescent motor nerves are unable to substantially increase the size of their peripheral fields by extensive collateral reinnervation.
journal_name
J Neurol Scijournal_title
Journal of the neurological sciencesauthors
Einsiedel LJ,Luff ARdoi
10.1016/0022-510x(92)90148-esubject
Has Abstractpub_date
1992-10-01 00:00:00pages
178-84issue
1-2eissn
0022-510Xissn
1878-5883pii
0022-510X(92)90148-Ejournal_volume
112pub_type
杂志文章abstract：:We report a family with a novel CSF1R mutation causing hereditary diffuse leucoencephalopathy with axonal spheroids. Family members presented with neuropsychiatric and behavioural symptoms, with subsequent development of motor symptoms and gait disturbance. MRI brain showed extensive white matter change with a frontal...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2013.06.007
更新日期：2013-09-15 00:00:00
abstract：:Zika virus infection represents a new neuropathological agent with association to a wide spectrum of neurological complications: a) Congenital Zika Syndrome by affecting the neural stem cells of the human fetal brain; b) Guillain-Barré Syndrome by an autoimmune response against peripheral myelin and/or axonal componen...
journal_title：Journal of the neurological sciences
pub_type： 社论
doi：10.1016/j.jns.2017.10.046
更新日期：2017-12-15 00:00:00
abstract：:Etiology and source of amyloid deposition in senile plaques of Alzheimer's disease (AD) are still unknown. In order to know whether or not fibronectin (Fn), an adhesive glycoprotein, is related to the amyloid deposition in the senile plaque, we conducted immunohistochemical studies using polyclonal anti-Fn and affinit...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(88)90031-7
更新日期：1988-05-01 00:00:00
abstract：:Protein stabilization and oligonucleotide therapies are being tested in transthyretin amyloid polyneuropathy (TTR FAP) trials. From retrospective analysis of 97 untreated TTR FAP patients, we test the adequacy of Neuropathy Impairment Score+7 tests (NIS+7) and modifications to comprehensively score impairments for use...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2014.06.041
更新日期：2014-09-15 00:00:00
abstract：:The innervation of laryngeal muscle fibers was appraised in adult humans. Sixteen intrinsic laryngeal muscles were dissected during the autopsy of 4 adults (41-71 years old). Longitudinal serial frozen sections, 60 microm thick, of the whole muscles were double-stained for cholinesterase activity and axonal visualizat...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/s0022-510x(97)05395-1
更新日期：1997-07-01 00:00:00
abstract：:The analysis of human skeletal muscle mitochondria revealed a progressive decline in mitochondrial respiratory chain function with age. The activities affected to the greatest extent were those of complexes I and IV which were decreased by 59% and 47% respectively between the ages of 20-30 years and 60-90 years of age...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(92)90270-u
更新日期：1992-11-01 00:00:00
abstract：OBJECTIVE:The etiology and outcome of pediatric stroke differs in different geographical regions and there is no comprehensive study from India. This study evaluates the etiology, type and predictors of outcome of pediatric stroke from Northern India. METHODS:79 stroke patients aged 1month to 18years managed during 20...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2012.11.020
更新日期：2013-02-15 00:00:00
abstract：BACKGROUND:Percutaneous endoscopic gastrostomy (PEG) is offered to amyotrophic lateral sclerosis (ALS) patients with severe dysphagia. Immediate benefits of PEG are adequate food intake and weight stabilization. However, the impact of PEG on survival is still uncertain. In this work we retrospectively evaluated the eff...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2011.02.016
更新日期：2011-05-15 00:00:00
abstract：BACKGROUND:Global cerebral ischemia followed by reperfusion, leads to extensive neuronal damage, particularly the neurons in the hippocampal CA region. Recent studies have demonstrated that pharmacological agents, such as Nigella sativa L. (Ranunculaceae) that is an annual herbaceous flowering plant, given at the time ...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2013.11.019
更新日期：2014-02-15 00:00:00
abstract：BACKGROUND:Persons with Down syndrome (DS) (40 years and older) have neuropathological changes characteristic of Alzheimer disease (AD). Soluble forms of amyloid beta (Abeta) peptide generated from amyloid precursor protein (APP) end at C-terminal residues 40 and 42. The presence of the apolipoprotein E (ApoE) epsilon4...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2006.12.010
更新日期：2007-03-15 00:00:00
abstract：:The reduction in the effectiveness of the blood-brain and blood-spinal cord barriers, previously seen in rats at the height of the acute episode of experimental allergic encephalomyelitis, has now been measured at various stages in the development of the disease up to 60 days after inoculation with guinea pig spinal c...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(83)90147-8
更新日期：1983-08-01 00:00:00
abstract：:Based on the assumption that brain ischemia and hypoxia are central causes of brain damage, the maintenance of an adequate tissue oxygenation is a primary objective in the field of neurocritical care. Thus, monitoring brain tissue oxymetry, allowing the possibility to discriminate between normal and critically impaire...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章,评审
doi：10.1016/j.jns.2007.04.026
更新日期：2007-10-15 00:00:00
abstract：:Motor evoked potentials (MEP) were recorded in 23 patients with definite relapsing multiple sclerosis before and after treatment with a short course of high dose of methylprednisolone. MEP were performed together with clinical examination just before treatment, and 6 and 60 days later. The following results were obser...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(92)90049-q
更新日期：1992-04-01 00:00:00
abstract：:The etiology of Parkinson's disease is mainly unknown. Immune abnormalities have been reported, including the occurrence of autoantibodies against neuronal structures and abnormal T cell functions. gamma delta+ T cells represent a recently recognized T cell subpopulation which is considered to play a role in immune re...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(94)90154-6
更新日期：1994-01-01 00:00:00
abstract：BACKGROUND:Intracranial hemorrhage (ICH) is the most common neurologic complication of reversible cerebral vasoconstriction syndrome (RCVS). In this study, we compared hemorrhagic and non-hemorrhagic RCVS with an aim to evaluate the risk factors and short-term clinical outcomes of hemorrhagic lesions. METHODS:We used ...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2021.117312
更新日期：2021-01-07 00:00:00
abstract：BACKGROUND:ew drugs were confirmed to be effective in the treatments of neurological dysfunction caused by acute intracerebral hemorrhage (ICH). The present prospective clinical trial aims to evaluate the effect of mouse nerve growth factor (mNGF) on neurological function in patients with acute ICH. METHODS:60 patient...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2020.117069
更新日期：2020-11-15 00:00:00
abstract：OBJECTIVE:Sweating on the palms of the hands and soles of the feet, so-called emotional sweating, is considered to be mediated by the limbic system, including the amygdala and anterior cingulate cortex. To reveal involvement of the limbic system in emotional sweating, we evaluated emotional sweating on the palms in pat...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2011.04.007
更新日期：2011-07-15 00:00:00
abstract：:A lack of normative data for transcranial magnetic stimulation (TMS)-related measures of the lower limb muscles in patients with stroke prevents us from understanding whether changes in TMS-related measures are induced by treatment or are due to their variability and/or the natural evolution of the disease. The purpos...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2011.01.004
更新日期：2011-04-15 00:00:00
abstract：:Mitochondrial DNA (mtDNA) abnormalities with primary pathogenic significance for optic nerve atrophy have been detected in inflammatory demyelinating conditions indistinguishable from multiple sclerosis (MS). However, the degree of involvement of mtDNA alterations in the pathogenesis of MS is not clear. To further cla...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(96)00112-8
更新日期：1996-09-01 00:00:00
abstract：:Friedreich Ataxia (FRDA) is an autosomal recessive neurodegenerative disorder most commonly caused by guanine-adenine-adenine (GAA) trinucleotide repeat expansions in both alleles of the FXN gene. Although progressive ataxia remains the hallmark clinical feature, patients with FRDA are at high risk of developing cardi...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2017.01.027
更新日期：2017-04-15 00:00:00
abstract：:The Hyper-IgE syndrome (HIES) is a rare primary immunodeficiency which recently has been associated with heterozygous dominant-negative mutations in the signal transducer and activator of transcription 3 (STAT3). Although HIES is characterized by recurrent staphylococcal infections, the microbial invasion of the centr...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2011.07.045
更新日期：2011-10-15 00:00:00
abstract：:We performed a quantitative neuropathological investigation of senile plaques and neurofibrillary tangles in the brains of 14 Japanese patients with diffuse Lewy body disease (DLBD), and examined apolipoprotein E (APOE) gene polymorphism in these patients. Most DLBD brains had as many senile plaques as those with Alzh...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(95)00312-p
更新日期：1996-03-01 00:00:00
abstract：:Blast-induced neurotrauma (BINT) is a major medical concern yet its etiology is largely undefined. Complement activation may play a role in the development of secondary injury following traumatic brain injury; however, its role in BINT is still undefined. The present study was designed to characterize the complement s...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2012.02.002
更新日期：2012-07-15 00:00:00
abstract：OBJECTIVE:Although there is evidence for a pathogenic role of humoral factors in multifocal motor neuropathy (MMN), plasma exchange (PE) is assumed to be an ineffective treatment. We set out to elucidate possible reasons for this apparent contradiction. METHODS:A retrospective analysis of seven patients with MMN, who ...
journal_title：Journal of the neurological sciences
pub_type： 临床试验,杂志文章
doi：10.1016/j.jns.2008.02.022
更新日期：2008-08-15 00:00:00
abstract：:The present study tested aspects of a novel etiological/pathogenetic hypothesis of Alzheimer's disease (AD), which proposes that alterations in endocrine regulation of peripheral calcium/phosphate (Ca/PO4) homeostasis (e.g., by glucocorticoids, vitamin D, etc.) induce and/or reflect altered calcium homeostasis and neu...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(91)90261-5
更新日期：1991-12-01 00:00:00
abstract：:Vitamin B1- and B-deficient encephalopathy was produced in adult Wistar rats and the effect of methylcobalamin was studied. These experiments were performed in vitamin B1- or B-deficient rats with or without the administration of guanidine, a magnesium antagonist. These encephalopathic rats showed symmetrical lesions ...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(87)90210-3
更新日期：1987-01-01 00:00:00
abstract：:The mitochondria have several important functions in the cell. A mitochondrial dysfunction causes an abatement in ATP production, oxidative damage and the induction of apoptosis, all of which are involved in the pathogenesis of numerous disorders. This review focuses on mitochondrial dysfunctions and discusses their c...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章,评审
doi：10.1016/j.jns.2007.01.033
更新日期：2007-06-15 00:00:00
abstract：:We performed a population based survival analysis of all incident cases (220) of motor neuron disease (MND) in the province of Turin, Italy, during the period 1966-1980. 175 cases were diagnosed as amyotrophic lateral sclerosis (ALS), 43 as progressive muscular atrophy (PMA) and 2 as progressive bulbar palsy (PBP). Th...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(84)90004-2
更新日期：1984-11-01 00:00:00
abstract：:A 31/2-year-old girl presented with frequent falls. She had an unsteady gait, delayed behavioural development absent tendon reflexes and in the legs decreased strength tone and equivocal plantar responses. She then developed ataxia, nystagmus, choreoathetosis, cranial nerve palsies, diminished strength and tone in the...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(85)90022-x
更新日期：1985-01-01 00:00:00
abstract：:While the pathologic events associated with multiple sclerosis (MS), diffuse axonal injury, cognitive damage, and white matter plaques, have been known for some time, their etiology is unknown and therapeutic efforts are still somewhat disappointing. This may be due to a lack of fundamental knowledge on how to maintai...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2013.06.004
更新日期：2013-10-15 00:00:00
