Abstract：
:A method has been adapted to produce membrane vesicles suitable for routine membrane patch clamping from neonate rat skeletal muscle. Single K+ channel activity was recorded from cell-free inside-out patches. Most Ca2(+)-activated voltage sensitive channels had large conductances of up to 300 pS, as determined from their current/voltage relationship, and an open probability (Po) approaching unity at positive membrane potentials. A lower conductance K+ channel, probably responsible for inward rectification, had a lower conductance of about 100 pS. Outward rectifying K+ channels were also observed with the lowest conductance, about 40 pS. 0.1 mM ATP when applied to the inner membrane surface reduced or blocked activity, drastically reducing Po without altering single channel conductance. Such an effect has been reported in other preparations but was different in the neonate preparation in that it blocked channels with conductances as high as 300 pS. The simple preparation described, which we have also used successfully on mature rat and mouse skeletal muscle, has potential in the analysis of channel activities in various conditions and pathologies without the need for tissue culture to produce suitable membrane preparations.
journal_name
J Neurol Scijournal_title
Journal of the neurological sciencesauthors
Wareham AC,Rowe IC,Whittle MAdoi
10.1016/0022-510x(90)90142-asubject
Has Abstractpub_date
1990-05-01 00:00:00pages
321-31issue
2-3eissn
0022-510Xissn
1878-5883pii
0022-510X(90)90142-Ajournal_volume
96pub_type
杂志文章abstract：OBJECTIVE:To explore the role of cardiovascular risk factors and the different NOTCH-3 mutations to explain the variability observed in the clinical presentation of CADASIL. METHODS:This was a retrospective cohort study of 331 individuals, 90 were carriers of four mutations in the NOTCH3 gene. These four mutations are...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2020.117178
更新日期：2020-12-15 00:00:00
abstract：BACKGROUND:Molecular diagnosis of hereditary spastic paraplegias (HSP) is a difficult task due to great clinical and genetic heterogeneity. We aimed to characterize clinical and molecular findings of HSP families from Rio Grande do Sul, Brazil; and to evaluate the diagnostic yield of a next-generation sequencing (NGS) ...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2017.10.010
更新日期：2017-12-15 00:00:00
abstract：:We investigated regional cerebral blood flow (rCBF) patterns in Binswanger's disease (BD) patients using single photon emission computed tomography (SPECT). SPECT data on 22 patients with BD were analyzed using three-dimensional stereotactic surface projections (3D-SSP) and were compared with those of 22 patients with...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2004.02.011
更新日期：2004-05-15 00:00:00
abstract：INTRODUCTION:The B-cell chemoattractant CXCL13 has been suggested as a cerebrospinal fluid (CSF) biomarker for Lyme neuroborreliosis (LNB). Our aim was to substantiate the value of CXCL13 in a large unselected cohort and determine a practical cut-off value to diagnose LNB. METHODS:We retrospectively studied clinical a...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2020.116843
更新日期：2020-07-15 00:00:00
abstract：RATIONALE:Hypermetabolism (HM) in Amyotrophic lateral sclerosis (ALS) is the reflection of a high energy metabolic level, but this alteration seems controversial. The main objective of the study was to confirm the existence of HM during ALS compared to healthy subjects. METHODS:A cohort of ALS patients was compared to...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2020.117257
更新日期：2021-01-15 00:00:00
abstract：:This is the first report of a patient presenting with a combination of Wallenberg and posterior spinal artery syndromes. The patient developed right hemiplegia and sensory disturbances on the right side of the face and over the whole body. MRI showed infarcts of the cerebellum, medulla oblongata, and upper cervical co...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/s0022-510x(00)00318-x
更新日期：2000-06-15 00:00:00
abstract：:Paired serum and cerebrospinal fluid (CSF) samples from 70 patients with inflammatory and non-inflammatory neurological diseases, as well as 10 sera from patients with primary antiphospholipid syndrome (PAS), six of which presented with cerebrovascular ischemic syndromes, were studied for the presence of anticardiolip...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(94)90058-2
更新日期：1994-03-01 00:00:00
abstract：:Proinflammatory cytokines contribute to the regulation of the disease process in inflammatory neuropathies. Cellular localisation of cytokine expression in CIDP nerve biopsies should provide further insight into the pathogenic mechanisms of the disease and the individual cells involved. In this study in situ hybridisa...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/s0022-510x(99)00009-x
更新日期：1999-02-01 00:00:00
abstract：:Human carnitine palmitoyltransferase (CPT) deficiency results in 2 clinical forms: a more common "muscular form" with myoglobinuria with or without delayed or impaired ketogenesis and a rare "hepatic form" with hypoketotic hypoglycemia, encephalopathy and seizures without muscular manifestations. We present 2 patients...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(89)90139-1
更新日期：1989-09-01 00:00:00
abstract：:We measured the CSF and plasma levels of glutamate, glutamine, aspartate (only in plasma), asparagine, glutamine, glycine and GABA in 31 patients with Parkinson's disease and in 45 matched controls. We used an ion-exchange chromatography method. When compared to controls, PD patients had similar CSF levels of glutamat...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(96)00115-3
更新日期：1996-09-15 00:00:00
abstract：BACKGROUND:Glucosamine (UDP-N-acetyl)-2-epimerase/N-acetylmannosamine kinase (GNE) myopathy, also called distal myopathy with rimmed vacuoles (DMRV) or hereditary inclusion body myopathy (HIBM), is a rare, progressive autosomal recessive disorder caused by mutations in the GNE gene. Here, we examined the relationship b...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2012.03.016
更新日期：2012-07-15 00:00:00
abstract：BACKGROUND:Vein of Galen aneurysmal malformations (VOGMs) are pial arteriovenous fistulas possessing Galenic venous drainage most commonly presenting during the neonatal period and infancy, with initial discovery during adulthood quite rare. OBJECTIVES AND METHODS:We conducted a literature survey of the PubMed databas...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2020.117014
更新日期：2020-09-15 00:00:00
abstract：:We examined the changes in cognitive function following carotid endarterectomy (CEA) in relation to the cerebral blood flow (CBF) in patients with high-grade carotid stenosis. The subjects consisted of 23 patients who underwent CEA and 17 controls matched by age and education. Single photon emission computed tomograph...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/s0022-510x(03)00128-x
更新日期：2003-09-15 00:00:00
abstract：:The physiological and histological changes following injection of 10 microliter of proteinase K into the rat tibial nerve have been compared with those induced by proteinase K and specific inhibitor phenylmethylsulphonyl fluoride (PMSF) and also by rabbit experimental allergic neuritis (EAN) serum. Proteinase K and PM...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(87)90005-0
更新日期：1987-12-01 00:00:00
abstract：OBJECT:The purpose of this study was to determine the effects of diazoxide on apoptosis and the relative mechanisms in a model of brain injury induced by cerebral ischemia/reperfusion (I/R) during deep hypothermia. METHODS:Three-week-old Sprague-Dawley male rats were randomly and equitably divided into sham-operated g...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2007.10.029
更新日期：2008-05-15 00:00:00
abstract：:The glucocorticoid methylprednisolone (Mepd) increased dystrophin and myosin heavy chain levels in differentiated cultures of cloned human myoblasts. Mepd increased the number of myotubes per area by preventing myotube death and detachment during myogenesis in vitro. Myotube death was the result of an endogenous proce...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(91)90019-4
更新日期：1991-01-01 00:00:00
abstract：BACKGROUND:Treatment options for neuromyelitis optica (NMO) are currently based on small retrospective case series and open label studies, ranging from 10 to 103 patients. OBJECTIVE:To compare the efficacy and tolerability of azathioprine, cyclophosphamide, mycophenolate, and rituximab in patients with neuromyelitis o...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2015.02.012
更新日期：2015-04-15 00:00:00
abstract：:Starting after the age of 35 years this German man had a slowly progressive distal myopathy greater in the legs than in the arms. First he realized gait difficulties with reduced ankle dorsiflexion. Serum creatine kinase activity was normal. Muscle biopsy studies showed myopathic changes, rimmed vacuoles and the prese...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/s0022-510x(96)00264-x
更新日期：1997-02-27 00:00:00
abstract：:Asia is the most populous region in the world and its rapidly growing societies are the sources of global development. However, accompanying this rapid growth is aging of the population with increasing occurrence of diseases, of which dementia is the most prominent, which provide major challenges to healthcare systems...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章,评审
doi：10.1016/j.jns.2012.07.023
更新日期：2012-10-15 00:00:00
abstract：:An immunocytochemical study of surface and cytoplasmic markers of the monocyte/macrophage lineage was undertaken on peripheral blood (PB) and cerebrospinal fluid (CSF) cells in patients with multiple sclerosis (MS) or other neurological diseases (OND) and in three healthy controls. Size and granularity were assessed b...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(93)90274-3
更新日期：1993-12-15 00:00:00
abstract：:Experimental autoimmune encephalomyelitis (EAE) is an organ-specific autoimmune disease characterised by inflammation and demyelination of the central nervous system and is the best available animal model of multiple sclerosis (MS). Since previous studies have shown that EAE is less severe or is delayed in onset durin...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/s0022-510x(03)00212-0
更新日期：2003-12-15 00:00:00
abstract：:Controversy exists regarding the apolipoprotein E (ApoE) epsilon 4 allele association with vascular dementia (VaD). The results range from increased epsilon 4 frequency, similar to that found for Alzheimer's disease (AD), to no association at all. Our objective was to clarify the relationship between ApoE epsilon 4 al...
journal_title：Journal of the neurological sciences
pub_type： 临床试验,杂志文章
doi：10.1016/s0022-510x(02)00287-3
更新日期：2002-11-15 00:00:00
abstract：BACKGROUND:Amyotrophic lateral sclerosis (ALS) is a progressive and fatal disease characterized by progressive degeneration of spinal and bulbar motor neurons. However up to 50% ALS patients may also have cognitive dysfunction which has not been fully examined. METHODS:35 ALS patients [23 patients presenting with limb...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2012.04.020
更新日期：2012-08-15 00:00:00
abstract：:To compare muscle fiber loss in young and old mdx mice, we have blocked regeneration in one leg with a high dose (18 Gy) of X-rays administered at two ages; 16 days, just prior to the onset of the myopathy, and 15 weeks, when the myopathy is considered to be quiescent. Mice were examined 4 days after irradiation to lo...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/s0022-510x(99)00061-1
更新日期：1999-04-01 00:00:00
abstract：:Recently an association between statins and the onset and more rapid disease course of amyotrophic lateral sclerosis (ALS) was reported, while other studies rejected such a link. The role of gender in that controversy is unclear. We evaluated the gender-specific effect of statins on the rate of functional decline in p...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/j.jns.2010.10.011
更新日期：2011-01-15 00:00:00
abstract：:The size and the distribution of type I and tye II fibres was determined in the gluteus maximus (21 cases), gluteus medius (56 cases) and tensor faciae latae (27 cases) muscles of patients with osteoarthritis of the hip. The patients were of both sexes, aged between 37 and 64 years (younger group) and between 65 and 7...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(80)90123-9
更新日期：1980-01-01 00:00:00
abstract：:A monoclonal antibody (ML30), previously shown to identify a human mitochondrial protein epitope homologous with the groEL heat-shock protein of bacteria (hsp60), was used in an immunohistochemical survey of the central nervous system in patients dying with no evidence of neurological disease and in tissue from patien...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(93)90111-b
更新日期：1993-09-01 00:00:00
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 ...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(89)90237-2
更新日期：1989-12-01 00:00:00
abstract：:The neuropathology of 8 cases of S. Paulo south coast epidemic encephalitis (Rocio flavivirus), a new arbo B virus encephalitis, is described. The topographic pattern of the lesions appears to be almost specific. The gray matter is predominantly affected. Interstitial mononuclear infiltration, microglial proliferation...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/s0022-510x(80)80001-3
更新日期：1980-02-01 00:00:00
abstract：:Respiratory failure accounts for the majority of deaths in amyotrophic lateral sclerosis (ALS) but only rarely is ALS diagnosed on the basis of respiratory insufficiency. We report four ALS patients presenting with acute respiratory failure. In three patients we have performed EMG needle examination of both hemidiaphr...
journal_title：Journal of the neurological sciences
pub_type： 杂志文章
doi：10.1016/0022-510x(96)00089-5
更新日期：1996-08-01 00:00:00
