Diagnostic yield of stimulation and voluntary single-fiber electromyography in myasthenia gravis.

abstract：INTRODUCTION:To evaluate the sensitivity of electrophysiologic assessments, we compared F-waves and motor and sensory nerve conduction studies (MNCS and SNCS) in patients with diabetes mellitus (DM). METHODS:We tested median, ulnar, tibial, and fibular nerves in 132 DM patients divided into those with and without clin...

journal_title：Muscle & nerve

authors： Pan H,Jian F,Lin J,Chen N,Zhang C,Zhang Z,Ding Z,Wang Y,Cui L,Kimura J

更新日期：2014-06-01 00:00:00

abstract：INTRODUCTION:We adopted a proteomics-based approach to gain insights into phenotypic differences between A/J and B10.SJL murine dysferlinopathy models. METHODS:We optimized immunoblotting of dysferlin by preparing homogenates of the tibialis anterior (TA) muscle under several different conditions. We compared TA muscl...

journal_title：Muscle & nerve

authors： Mueller AL,Desmond PF,Hsia RC,Roche JA

更新日期：2014-08-01 00:00:00

abstract：:Beta-chemokines attract and activate T cells and monocytes and have a key role in chronic inflammation. Certain beta-chemokines, such as monocyte chemoattractant protein-1 (MCP-1), have been reported to be upregulated in the idiopathic inflammatory myopathies (IIM). We studied the distribution of beta-chemokine recept...

journal_title：Muscle & nerve

authors： De Paepe B,De Bleecker JL

更新日期：2005-05-01 00:00:00

abstract：INTRODUCTION:Antimitochondrial antibodies are autoantibodies detected in 90% of primary biliary cirrhosis (PBC) patients. Some PBC cases are complicated by myositis, which is difficult to confirm due to minimal histological evidence of inflammation in limb muscles. METHODS:Our aim was to determine the extent of inflam...

journal_title：Muscle & nerve

authors： Uenaka T,Kowa H,Sekiguchi K,Nagata K,Ohtsuka Y,Kanda F,Toda T

更新日期：2013-05-01 00:00:00

abstract：:We report two female patients with a history of alcohol abuse presenting with proximal painful muscle weakness following aversion therapy with emetine hydrochloride. Muscle biopsy of Case 1 showed a reversible floccular-shaped loss of myosin ATPase and dehydrogenase, an accumulation of PAS positive material, and a nor...

journal_title：Muscle & nerve

authors： Sugie H,Russin R,Verity MA

更新日期：1984-01-01 00:00:00

abstract：INTRODUCTION:Myasthenia gravis (MG) is a B-cell-mediated autoimmune disease. B-cell-activating factor (BAFF) is a major factor in B-cell development and activation. In this study we investigated serum BAFF levels in MG patients. METHODS:We compared the serum BAFF levels of 20 MG patients with gender-matched healthy co...

journal_title：Muscle & nerve

authors： Kang SY,Kang CH,Lee KH

更新日期：2016-12-01 00:00:00

abstract：INTRODUCTION:The immuno-microenvironment of injured nerves adversely affects mesenchymal stem cell (MSC) therapy for neurotmesis. Magnetic resonance imaging (MRI) can be used noninvasively to monitor nerve degeneration and regeneration. The aim of this study was to investigate nerve repair after MSC transplantation com...

journal_title：Muscle & nerve

authors： Yang Z,Zheng C,Zhang F,Lin B,Cao M,Tian X,Zhang J,Zhang X,Shen J

更新日期：2020-06-01 00:00:00

abstract：:Limb-girdle muscular dystrophy 2D (LGMD2D) is caused by mutations in the alpha-sarcoglycan gene (SGCA). The most frequently reported mutation, 229CGC>TGC (R77C) in exon 3 of SGCA, results in the substitution of arginine by cysteine. We present here the clinical, immunohistochemical, and genetic data of 11 Finnish pati...

journal_title：Muscle & nerve

authors： Hackman P,Juvonen V,Sarparanta J,Penttinen M,Aärimaa T,Uusitalo M,Auranen M,Pihko H,Alén R,Junes M,Lönnqvist T,Kalimo H,Udd B

更新日期：2005-02-01 00:00:00

abstract：:CNS conduction and autonomic nervous function were investigated in 15 patients with HMSN I. Central motor conduction time (CMCT) was estimated with magnetic brain stimulation and electrical nerve root stimulation. Somatosensory evoked potential (SEP) and visual evoked potential (VEP) were used for assessment of centra...

journal_title：Muscle & nerve

authors： Solders G,Andersson T,Persson A

更新日期：1991-11-01 00:00:00

abstract：:An electrophysiologic study of peripheral nerve excitability was performed in patients with hyperkalemic periodic paralysis (HPP) and in normal controls. It was found that a marked degree of neural hyperexcitability existed in all patients with HPP who showed cold sensitivity. The results suggest involvement of the ne...

journal_title：Muscle & nerve

authors： Segura RP,Petajan JH

更新日期：1979-07-01 00:00:00

abstract：:Muscle weakness, studied in 4 patients with multiple sclerosis (MS), was compared with values from normal subjects. Twitch occlusion showed that normal subjects could activate their muscles maximally, but patients rarely achieved greater than 60% activation. In both groups, motoneuron firing rates increased linearly w...

journal_title：Muscle & nerve

authors： Rice CL,Vollmer TL,Bigland-Ritchie B

更新日期：1992-10-01 00:00:00

abstract：:Repetitive nerve stimulation (RNS) of the median nerve is rarely studied in myasthenia gravis (MG). We performed a retrospective analysis of RNS studies performed on 448 patients at our center between 2010 and 2016. Among 95 patients with MG, an abnormal decrement of the compound muscle action potential amplitude was ...

journal_title：Muscle & nerve

authors： Lee TH,Li Y

更新日期：2019-12-01 00:00:00

abstract：:Although paraspinal muscle fibrillations and positive sharp waves (PSWs) are used to help identify neuromuscular disorders, the frequency of these abnormalities in normal subjects is uncertain. We performed lumbosacral paraspinal electromyography in 65 normal subjects. Twenty-seven (42%) had fibrillations and/or PSWs,...

journal_title：Muscle & nerve

authors： Nardin RA,Raynor EM,Rutkove SB

更新日期：1998-10-01 00:00:00

abstract：:Contractions of rat extensor digitorum longus (EDL, a fast muscle) and soleus (SOL, a slow muscle) muscles of different ages (1-4 weeks) were recorded in vitro with direct stimulation and at different temperatures (range 35-10 degrees C). Twitch tension in 4-week-old EDL muscle increased in cooling from 35 to 20 degre...

journal_title：Muscle & nerve

authors： Wylie SR,Ranatunga KW

更新日期：1987-11-01 00:00:00

abstract：:Adult skeletal muscle fibers are among the few cell types that are truly multinucleated. Recently, evidence has accumulated supporting a role for the modulation of myonuclear number during muscle remodeling in response to injury, adaptation, and disease. These studies have demonstrated that muscle hypertrophy is assoc...

journal_title：Muscle & nerve

authors： Allen DL,Roy RR,Edgerton VR

更新日期：1999-10-01 00:00:00

abstract：INTRODUCTION:Stretch injuries in peripheral nerves can cause pain, paralysis, and loss of sensation. Although optimal treatment depends on the degree of injury, it is difficult to determine the severity of induced nerve damage. METHODS:The load-deformation curves of rat median nerves were generated from monotonic load...

journal_title：Muscle & nerve

authors： Sinclair EB,Andarawis-Puri N,Ros SJ,Laudier DM,Jepsen KJ,Hausman MR

更新日期：2012-12-01 00:00:00

abstract：INTRODUCTION:Chorea-acanthocytosis (ChAc) is a rare autosomal recessive disease characterized by involuntary movements, seizures, cognitive changes, myopathy, and axonal neuropathy. METHODS:We report a patient who presented with gait impairment and dysarthria. Clinical and neurophysiological assessment disclosed upper...

journal_title：Muscle & nerve

authors： Neutel D,Miltenberger-Miltenyi G,Silva I,de Carvalho M

更新日期：2012-02-01 00:00:00

abstract：:In this study some particular and puzzling aspects of amyotrophic lateral sclerosis (ALS) are discussed, with an emphasis on the role of neocortical evolution. Other issues explored include the nature of the clinical deficit in ALS; anatomical and evolutionary aspects of the neocortex, motor cortex, and corpus callosu...

journal_title：Muscle & nerve

authors： Eisen A

更新日期：2009-08-01 00:00:00

abstract：:Amyotrophic lateral sclerosis (ALS) is a debilitating neurodegenerative disorder with complex biology and significant clinical heterogeneity. Many preclinical and early phase ALS clinical trials have yielded promising results that could not be replicated in larger phase 3 confirmatory trials. One reason for the lack o...

journal_title：Muscle & nerve

authors： Goyal NA,Berry JD,Windebank A,Staff NP,Maragakis NJ,van den Berg LH,Genge A,Miller R,Baloh RH,Kern R,Gothelf Y,Lebovits C,Cudkowicz M

更新日期：2020-08-01 00:00:00

abstract：:To evaluate the effect of SMN2 copy number on disease severity in spinal muscular atrophy (SMA), we stratified 45 adult SMA patients based on SMN2 copy number (3 vs. 4 copies). Patients with 3 copies had an earlier age of onset and lower spinal muscular atrophy functional rating scale (SMAFRS) scores and were more lik...

journal_title：Muscle & nerve

authors： Elsheikh B,Prior T,Zhang X,Miller R,Kolb SJ,Moore D,Bradley W,Barohn R,Bryan W,Gelinas D,Iannaccone S,Leshner R,Mendell JR,Mendoza M,Russman B,Smith S,King W,Kissel JT

更新日期：2009-10-01 00:00:00

abstract：:Microdrop samples of endoneurial fluid and serum from galactosemic rats were analyzed with energy dispersive spectrometry (EDS). The sodium concentration of endoneurial fluid from galactose-fed rats (295 meq/liter) was nearly twice that of age-matched controls (152 meq/liter) and indicates that sodium is present in an...

journal_title：Muscle & nerve

authors： Mizisin AP,Myers RR,Powell HC

更新日期：1986-06-01 00:00:00

abstract：:Evidence suggests that sensory loss may occur in a proportion of patients affected by poliomyelitis. We hypothesize that sensory problems may be a lasting sequela in some polio survivors. Sensory pathways in polio survivors were evaluated clinically and electrophysiologically using sensory evoked potentials (SEPs). Pa...

journal_title：Muscle & nerve

authors： Prokhorenko OA,Vasconcelos OM,Lupu VD,Campbell WW,Jabbari B

更新日期：2008-10-01 00:00:00

abstract：:The purpose of this study was to investigate whether the previously demonstrated heterogeneity of myosin heavy chain (MHC) in type 2B fibers of the superficial portion of the lateral gastrocnemius (SLG) muscle of the rat may be due to presence of type 2D/X fibers. Immunohistochemical identification of MHC heterogeneit...

journal_title：Muscle & nerve

authors： Sawchak JA,Leung B,Shafiq SA

更新日期：1992-12-01 00:00:00

abstract：BACKGROUND:Despite use of qualitative laryngeal electromyography (LEMG) guided botulinum toxin A (BoNT-A) injection for treatment of adductor spasmodic dysphonia (AdSD), unsatisfactory injections and complete "misses" remain problematic. We aimed to determine if the quantitative LEMG measure of number of small segments...

journal_title：Muscle & nerve

authors： Dwyer CD,Leclerc AA,Nandedkar SD,Young VN,Rosen CA

更新日期：2020-12-31 00:00:00

abstract：:Disappointing functional recovery following peripheral nerve repair can be improved by neurotrophic growth factors. Leukemia inhibitory factor (LIF) is unique in that it has independent neurotrophic and myotrophic actions. The aim of this study was to explain this finding by establishing the existence of anterograde a...

journal_title：Muscle & nerve

authors： Bennett TM,Dowsing BJ,Austin L,Messina A,Nicola NA,Morrison WA

更新日期：1999-01-01 00:00:00

abstract：BACKGROUND:We aimed to describe the electrophysiological progression rate of chronic idiopathic axonal polyneuropathy (CIAP) and look into the potential role of human leukocyte antigen (HLA) genetic susceptibility in its development. METHODS:We recruited 57 patients with CIAP (mean age at diagnosis 67, mean follow-up ...

journal_title：Muscle & nerve

authors： Zis P,Sarrigiannis PG,Artemiadis A,Skarlatou V,Hadjivassiliou M

更新日期：2021-01-13 00:00:00

abstract：:Frog muscles bathed in solutions equilibrated with 0.5%-2.0% halothane develop large contractures when cooled to 2-4 degrees C. These halothane-cooling contractures (HCC) are dose dependent and reproducible; they are potentiated by lidocaine (5 mM), abolished by procaine (5 mM), and partially inhibited by procainamide...

journal_title：Muscle & nerve

authors： Suarez-Kurtz G,Sudo RT

更新日期：1986-01-01 00:00:00

abstract：:Denervation induces muscle fiber atrophy and changes in the gene expression rates of skeletal muscle. Electrical stimulation (ES) is a procedure generally used to treat denervated muscles in humans. This study evaluated the effect of ES based on chronaxie and rheobase on the expression of the myoD and atrogin-1 genes ...

journal_title：Muscle & nerve

authors： Russo TL,Peviani SM,Freria CM,Gigo-Benato D,Geuna S,Salvini TF

更新日期：2007-01-01 00:00:00

abstract：:Genetically homozygous line 413 dystrophic chickens were given twice-daily intraperitoneal injections of solutions containing branched-chain amino acids (BCCA-leucine, valine, isoleucine) either alone or in combination; and their alpha-ketoacid analogs (alpha-ketoisocaproic and alpha-ketoisovaleric acids). Another tri...

journal_title：Muscle & nerve

authors： Hudecki MS,Pollina CM,Heffner RR

更新日期：1982-07-01 00:00:00

abstract：:Data are scarce relating to the plasticity with strength training of dynamic muscle performance in older humans. Hence, we investigated alterations in the torque-velocity relation with strength training in old age, and their origin. Knee extension and leg-press exercises were performed three times per week for 14 week...

journal_title：Muscle & nerve

authors： Reeves ND,Maganaris CN,Narici MV

更新日期：2005-03-01 00:00:00