Abstract:
:The diagnostic value of analogue frequency analysis of EMG from patients with neuromuscular disorders has not been convincing. Using fast Fourier transformation it is today possible to obtain the EMG power spectrum on-line and with a better resolution. We examined the power spectrum of the EMG pattern of the brachial biceps muscle in 20 control subjects, 20 patients with myopathy, and 12 with neurogenic disorders. The electrical activity was sampled with a concentric needle electrode from 10 sites in each muscle. From each spectrum, mean power frequency, the power at 140 Hz, 1400 Hz, 2800 Hz and 4200 Hz relative to total power and the high/low ratio (1400/140) were obtained. The mean power frequency was higher at 10% than at 30% of maximal force. At a force of 30% of maximum the power spectrum analysis identified 55% and 64% of the patients with myopathy and neurogenic disorders, respectively. Although the diagnostic yield of the power spectrum analysis at a force of 10% of maximum was less than that at 30%, additional patients were identified at 10% increasing the diagnostic yield to 65% and 73% for patients with myopathy and neurogenic disorders, respectively. The best diagnostic parameters were the mean power frequency and the relative power at 1400 Hz.
journal_name
J Neurol Scijournal_title
Journal of the neurological sciencesauthors
Rønager J,Christensen H,Fuglsang-Frederiksen Adoi
10.1016/0022-510x(89)90237-2subject
Has Abstractpub_date
1989-12-01 00:00:00pages
283-94issue
1-3eissn
0022-510Xissn
1878-5883pii
0022-510X(89)90237-2journal_volume
94pub_type
杂志文章abstract::Shapiro syndrome is a rare entity, comprising a triad of recurrent hypothermia, hyperhidrosis and congenital agenesis of the corpus callosum. Fewer than 50 cases have been described, almost invariably in patients presenting in childhood or early adulthood. We present a case of an 80 year old woman presenting with recu...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2013.03.014
更新日期:2013-06-15 00:00:00
abstract:UNLABELLED:Riluzole is currently the only drug that holds any hope of prolonging life in amyotrophic lateral sclerosis (ALS) by slowing the rate of disease progression. METHODS AND RESULTS:Between 1995 and 1997 a total of 7916 ALS patients in 39 countries, were given 100 mg riluzole per day for a mean of 7.2 months. T...
journal_title:Journal of the neurological sciences
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1016/s0022-510x(00)00426-3
更新日期:2000-11-01 00:00:00
abstract::We studied the clinical features of 47 patients with a non-hereditary degenerative disease and with atrophy of brainstem or cerebellum or both in CT scanning. There was no relation between the CT findings and duration or severity of the disease, nor with the kind of the neurological signs which comprised ataxia, a hyp...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/0022-510x(90)90073-v
更新日期:1990-03-01 00:00:00
abstract::Axonal degeneration plays an important role in the accumulation of disability in patients with multiple sclerosis (MS). Pathological studies have demonstrated axonal damage, particularly in areas of acute inflammation and demyelination, and in chronic lesions. Axonal loss and its progression, which is associated with ...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章,评审
doi:10.1016/s0022-510x(99)00178-1
更新日期:1999-11-15 00:00:00
abstract::In-situ hybridization with labeled oligonucleotide probes was applied to explore cytokine and chemokine mRNA expression in sections of striated muscle, the target organ in experimental autoimmune myasthenia gravis (EAMG), induced in Lewis rats by immunization with acetylcholine receptor (AChR) and complete Freund's ad...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/s0022-510x(98)00181-6
更新日期:1998-11-26 00:00:00
abstract:BACKGROUND:To evaluate the presence of ischemic and hemorrhagic lesions in brain MRI of patients with Fabry disease (FD). METHODS:Brain MRI studies in 46 consecutive patients were evaluated using classic sequences as well as GRE-weighted images, for ischemic lesions and chronic microbleed detection. Of the 36 adult pa...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2011.03.020
更新日期:2011-06-15 00:00:00
abstract::Anhedonia is one of the non-motor symptoms observed in the Parkinson's disease (PD). However, there is no clear relationship between anhedonia and its correlation with other symptoms of PD. The aim of this study is to evaluate the characteristics of anhedonia and its correlation with clinical aspects of PD in a relati...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jns.2016.10.051
更新日期:2017-01-15 00:00:00
abstract::A nitric oxide releasing compound, NOC-18, was injected intrathecally in order to determine the role of NO in spinal nociceptive mechanisms in rats. The nociceptive threshold was evaluated by the radiant heat tail-flick test. The effects of intrathecal injection of N-nitro-L-arginine methyl ester (L-NAME), an NO synth...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/s0022-510x(97)00188-3
更新日期:1997-12-09 00:00:00
abstract::The effect of intravenous infusion of progesterone and Mebumal (ACO, Sweden; penotobarbital, INN) on the frequency and amplitude of the spontaneous interictal spikes from a penicillin focus in the cerebral cortex was investigated in ovariectomized cats anaesthetized with chloralose. The plasma concentration of progest...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/0022-510x(78)90166-1
更新日期:1978-03-01 00:00:00
abstract::Sequential pairs of cerebrospinal fluid (CSF) and serum samples from 10 patients followed for 2.5-12 years after onset of unilateral optic neuritis (ON) were studied. Eight patients developed definite multiple sclerosis (MS) during the observation period. All patients had normal CSF protein patterns on agar or agarose...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/0022-510x(87)90182-1
更新日期:1987-10-01 00:00:00
abstract::Multiple sclerosis (MS) is an inflammatory disease of the central nervous system, predominantly, but not exclusively, involving the normal appearing white matter. Until very recently we believed that nervous dysfunction in MS was completely depending on the accumulation of lesions in the white matter of the CNS. As a ...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章,评审
doi:10.1016/j.jns.2007.09.001
更新日期:2008-02-15 00:00:00
abstract:OBJECTIVE:To investigate the effect of mild cognitive impairment (MCI) on balance. METHODS:87 subjects with subjective memory impairment were enrolled, and subdivided into two groups, MCI and non-MCI, according to diagnostic criteria of amnestic subtype of MCI according to the 1999 MCI international panel (Current Con...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2011.02.031
更新日期:2011-06-15 00:00:00
abstract::The relationship between blood pressure(BP) and clinical outcome in patients with acute stroke is still controversial. The present study aimed to elucidate the impact of admission blood pressure on mortality in patients with acute stroke of different subtypes. Data were from ChinaQUEST (QUality Evaluation of Stroke Ca...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jns.2017.09.032
更新日期:2017-12-15 00:00:00
abstract::It was the aim of this study to determine the associations of clinical and laboratory data with plasma homocyst(e)ine levels in patients with transient ischemic attack (TIA) or minor stroke (MS), with special reference to their 677C to T mutation status in the 5,10-methylenetetrahydrofolate reductase (5,10-MTHFR) gene...
journal_title:Journal of the neurological sciences
pub_type: 临床试验,杂志文章
doi:10.1016/s0022-510x(97)00311-0
更新日期:1998-03-05 00:00:00
abstract::A 25-year-old Chinese man presented with a 2-year history of recurrent coma. His plasma ammonia level was extremely elevated, with raised citrulline level and absence of argininosuccinic acid. Adult-onset citrullinaemia, a condition rarely reported outside the Japanese population, was diagnosed. Serial magnetic resona...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/s0022-510x(02)00439-2
更新日期:2003-05-15 00:00:00
abstract::Traumatic brain injury (TBI) is a considerable cause of mild cognitive impairment and dementia. Intranasal administration of nerve growth factor (NGF) has previously been found to improve cognitive function after TBI, but the mechanism remains unclear. This study aimed to investigate the effects of intranasal NGF on t...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2014.06.037
更新日期:2014-10-15 00:00:00
abstract:BACKGROUND:Allelic heterogeneity and phenotype variability-especially in age at onset, penetrance and progression-are reported in ALS1 families. For this reason, SOD1 gene mutation data in ALS1 patients are currently being gathered to better understand the genotype-phenotype relationship in this disorder. Here, we repo...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2003.10.018
更新日期:2004-04-15 00:00:00
abstract::Autopsy cases of two brothers with bulbo-spinal muscular atrophy associated with gynecomastia, testicular atrophy and sensory neuropathy are reported. The disease started with finger tremor, proximal muscle weakness and facial muscle twitching at the second and fourth decades, accompanied by bulbar signs and glove-sto...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/0022-510x(88)90240-7
更新日期:1988-11-01 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::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
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journal_title:Journal of the neurological sciences
pub_type: 杂志文章,评审
doi:10.1016/j.jns.2018.09.028
更新日期:2018-12-15 00:00:00
abstract::The effects of subthalamic nucleus (STN) stimulation on cognition and mood have not been well established. The authors estimated cognitive and mood effects of bilateral subthalamic nucleus deep brain stimulation (STN DBS) in patients with Parkinson's disease (PD) at 6 months and 1 year postoperatively. Forty-six patie...
journal_title:Journal of the neurological sciences
pub_type: 临床试验,杂志文章
doi:10.1016/j.jns.2008.06.010
更新日期:2008-10-15 00:00:00
abstract::Data of 2399 brain weights and ages from populations before 1880, 1885 to 1900 and 1966 to 1976 were obtained from German anatomical and pathological institutes, analyzed with non-linear and multiple linear regression analyses and the results compared. The influence of the absolute age (sample period) on brain weights...
journal_title:Journal of the neurological sciences
pub_type: 历史文章,杂志文章
doi:10.1016/0022-510x(79)90202-8
更新日期:1979-02-01 00:00:00
abstract::Over two decades, a 42-year old woman experienced the gradual onset of choreic involuntary movements, dystonia, and tics. Decreased caudate nucleus metabolism on 2-deoxyglucose PET scan and a heterozygous 49-CAG repeat expansion within the HTT gene established the diagnosis of HD, although no other family history was ...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2012.08.034
更新日期:2012-12-15 00:00:00
abstract:INTRODUCTION:Nerve conduction is often regarded as more sensitive than ultrasonography (US) for diagnosing carpal tunnel syndrome (CTS). The diagnostic value of US derives from median nerve enlargement occurring at both ends of the carpal tunnel resulting in a dumbbell-like swelling from carpal tunnel pressure. An impo...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2014.01.018
更新日期:2014-04-15 00:00:00
abstract::The acute effect of a single intraperitoneal dose of alcohol (2 g kg-1 body weight) was studied in normally fed rats anaesthetised with sodium pentabarbitone . Rapidly achieved high blood alcohol levels were accompanied by an equally rapid but transient 4-fold increase in the total creatine kinase (CK) activity in the...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/0022-510x(84)90153-9
更新日期:1984-03-01 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::The technique of parabiotic reinnervation has been used to test directly the neurogenic theory of the aetiology of muscular dystrophy in mice. Dystrophic muscles contain significantly fewer muscle fibres than their normal controls; they also have a much broader spectrum of fibre size because of a much higher proportio...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/0022-510x(75)90212-9
更新日期:1975-11-01 00:00:00
abstract:INTRODUCTION:Age of onset modifiers are of considerable importance in Alzheimer's and related dementias. Arboleda-Valesquez et al., reporting on a single PSEN1 subject, suggested that homozygosity for the Christchurch variant of APOE could represent such a modifier. METHODS:We studied APOE Christchurch and Kloth-VS ge...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2020.117143
更新日期:2020-11-15 00:00:00
abstract::Cases of adult-onset idiopathic motor neuron disease (MND) identified from January 1970 through December 1986 were studied in a defined area of California. The patients were followed prospectively throughout the illness in 99% of cases. Among 708 cases aged 25-74 years at onset, the most common type (86%) was typical,...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/0022-510x(93)90245-t
更新日期:1993-08-01 00:00:00