Concentric-needle single-fiber electromyography for the diagnosis of myasthenia gravis.

abstract：INTRODUCTION:Duchenne muscular dystrophy (DMD) is a degenerative disease of skeletal, respiratory, and cardiac muscles caused by defects in the dystrophin gene. More recently, brain involvement has been verified. Mitochondrial dysfunction and oxidative stress may underlie the pathophysiology of DMD. In this study we ev...

journal_title：Muscle & nerve

authors： Comim CM,Hoepers A,Ventura L,Freiberger V,Dominguini D,Mina F,Mendonça BP,Scaini G,Vainzof M,Streck EL,Quevedo J

更新日期：2016-01-01 00:00:00

abstract：:Multifocal motor neuropathy (MMN) is a chronic, immune-mediate, peripheral myelinopathy. Inherent in its name, MMN implies involvement of two or more motor nerves. We report three patients with weakness and partial motor conduction block restricted to a single nerve and localized to sites that are not at risk for entr...

journal_title：Muscle & nerve

authors： Felice KJ,Goldstein JM

更新日期：2002-05-01 00:00:00

abstract：:During postnatal development of extensor digitorum longus (EDL) muscle, sodium withdrawal contractures were observed during the first 6 days after birth, and not after this time. In regenerating EDL muscles, zero-Na contractures were demonstrated: (1) 7 days after bupivacaine injection, but not 14 or 90 days after thi...

journal_title：Muscle & nerve

authors： Louboutin JP,Noireaud J

更新日期：1998-11-01 00:00:00

abstract：:A prospective study was done on 222 consecutive new patients referred to our pediatric muscle clinic to assess the diagnostic value of ultrasound imaging. Ultrasound scans were interpreted without knowledge of clinical presentation or results of other tests. Muscular dystrophy produced a brightly speckled pattern of i...

journal_title：Muscle & nerve

authors： Heckmatt JZ,Pier N,Dubowitz V

更新日期：1988-01-01 00:00:00

abstract：INTRODUCTION:This study was undertaken to describe a method for quantifying vibration when using a conventional tuning fork (CTF) in comparison to a Rydel-Seiffer tuning fork (RSTF) and to provide reference values. METHODS:Vibration thresholds at index finger and big toe were obtained in 281 participants. Spearman's c...

journal_title：Muscle & nerve

authors： Alanazy MH,Alfurayh NA,Almweisheer SN,Aljafen BN,Muayqil T

更新日期：2018-01-01 00:00:00

abstract：:In normal skeletal muscle, prolonged stimulation results in some cellular adenosine triphosphate (ATP) being converted to adenosine monophosphate (AMP) and then deaminated to inosine monophosphate (IMP). Here, we investigate whether the build-up of IMP contributes to muscle fatigue and also determine what happens if A...

journal_title：Muscle & nerve

authors： Blazev R,Lamb GD

更新日期：1999-12-01 00:00:00

abstract：:We have examined the clinical features of patients with femoral neuropathy and the factors that influence the prognosis. Of 80 consecutive patients referred for neurophysiological evaluations of proximal lower limb weakness, 32 fulfilled strict inclusion criteria and had adequate information, including estimates of ax...

journal_title：Muscle & nerve

authors： Kuntzer T,van Melle G,Regli F

更新日期：1997-02-01 00:00:00

abstract：:There are several pathogenic mechanisms of peripheral nerve involvement in patients with monoclonal dysglobulinemia. Intranervous proliferation of malignant cells, immunoglobulin, or amyloid deposits in the endoneurial space can only be determined by examination of nerve biopsy specimens. We present clinical, electrop...

journal_title：Muscle & nerve

authors： Vallat JM,Magy L,Richard L,Piaser M,Sindou P,Calvo J,Ghorab K,Cros D

更新日期：2008-07-01 00:00:00

abstract：INTRODUCTION:Statins have well-known benefits on cardiovascular mortality, though up to 15% of patients experience side effects. With guidelines from the American Heart Association, American College of Cardiology, and American Diabetes Association expected to double the number of statin users, the overall incidence of ...

journal_title：Muscle & nerve

authors： Rengo JL,Callahan DM,Savage PD,Ades PA,Toth MJ

更新日期：2016-02-01 00:00:00

abstract：:Focal myositis is a rare inflammatory pseudotumor of skeletal muscle which usually has a benign course. We report a 56-year-old woman with a painful mass in the left arm with a radial nerve palsy. Magnetic resonance imaging (MRI) of the left arm showed a mass in the triceps muscle that was suggestive of a soft-tissue ...

journal_title：Muscle & nerve

authors： Alzagatiti BI,Bertorini TE,Horner LH,Maccarino VS,O'Brien T

更新日期：1999-07-01 00:00:00

abstract：:A family is described in which five males have late-onset facial weakness, dysarthria, dysphagia, and slowly progressive proximal weakness. Electrodiagnostic studies and muscle biopsy were compatible with spinal muscular atrophy. This family appears quite similar to several previously reported families with late-onset...

journal_title：Muscle & nerve

authors： Ringel SP,Lava NS,Treihaft MM,Lubs ML,Lubs HA

更新日期：1978-07-01 00:00:00

abstract：:We investigated the influence of electrical stimulation of the posterior cruciate ligament (PCL) on the motoneuron pool of the thigh muscle during voluntary static and dynamic muscle contraction. The study group comprised nine young men with no history of injury to the knee joints. Multistranded Teflon-insulated stain...

journal_title：Muscle & nerve

authors： Fischer-Rasmussen T,Krogsgaard M,Jensen DB,Dyhre-Poulsen P

更新日期：2001-11-01 00:00:00

abstract：INTRODUCTION:Few data exist on the feasibility and reliability of measuring muscular atrophy in 2 dimensions (2D) by ultrasonography (US) and elasticity with shear wave elastography (SWE) in spastic muscles. METHODS:Fourteen patients with chronic stroke took part in 2 intersession reliability experiments performed wit...

journal_title：Muscle & nerve

authors： Mathevon L,Michel F,Aubry S,Testa R,Lapole T,Arnaudeau LF,Fernandez B,Parratte B,Calmels P

更新日期：2018-02-01 00:00:00

abstract：INTRODUCTION:In this study we investigated the interaction between adipose tissue-derived stem cells (ASCs) and myoblasts in co-culture experiments. METHODS:Specific inductive media were used to differentiate ASCs in vitro into a Schwann cell-like phenotype (differentiated adipose tissue-derived stem cells, or dASCs) ...

journal_title：Muscle & nerve

authors： El-Habta R,Kingham PJ,Backman LJ

更新日期：2018-02-01 00:00:00

abstract：INTRODUCTION:Peripheral nerves are often exposed to mechanical stress leading to compression neuropathies. The pathophysiology underlying nerve dysfunction by chronic compression is largely unknown. METHODS:We analyzed molecular organization and fine structures at and near nodes of Ranvier in a compression neuropathy ...

journal_title：Muscle & nerve

authors： Otani Y,Yermakov LM,Dupree JL,Susuki K

更新日期：2017-04-01 00:00:00

abstract：:The physiological and phenotypic properties of motor units in the cat soleus muscle were studied after 4 months of inactivity induced by spinal cord isolation (SI). The soleus of some SI cats were stimulated for 30 min/day during an isometric (SI-I), shortening (SI-S), or lengthening (SI-L) phase of a simulated step c...

journal_title：Muscle & nerve

authors： Zhong H,Roy RR,Hodgson JA,Talmadge RJ,Grossman EJ,Edgerton VR

更新日期：2002-08-01 00:00:00

abstract：:Charcot-Marie-Tooth (CMT) disease is a heterogeneous group of inherited sensory and motor neuropathies. Mutations in the gene that encodes for myelin protein zero (MPZ) can produce different phenotypes: CMT1 (with low conduction velocities), CMT2 (less frequent and with unaffected conduction velocities), and CMTID (wi...

journal_title：Muscle & nerve

authors： Banchs I,Casasnovas C,Montero J,Volpini V,Martínez-Matos JA

更新日期：2010-08-01 00:00:00

abstract：:To clarify the molecular nature of the pathogenesis in X-linked Emery-Dreifuss muscular dystrophy (EDMD), we monitored the expression of 2400 genes in control and EDMD fibroblasts by using complementary DNA (cDNA) microarray techniques. A total of 60 genes whose expression was altered in EDMD fibroblasts when compared...

journal_title：Muscle & nerve

authors： Tsukahara T,Tsujino S,Arahata K

更新日期：2002-06-01 00:00:00

abstract：INTRODUCTION:The probability and degree of muscle recovery after lesions of long peripheral nerves have not been assessed quantitatively. METHODS:Twelve adults with closed injuries of the fibular division of the sciatic nerve with complete denervation of associated muscles were followed-up for 2-10 years. The onset of...

journal_title：Muscle & nerve

authors： Stefancic M,Vidmar G,Blagus R

更新日期：2016-10-01 00:00:00

abstract：INTRODUCTION:In this study we aimed to determine the maximal isometric muscle strength of a healthy, normal-weight, pediatric population between 6 and 15 years of age using hand-held dynamometry to establish strength reference values. The secondary objective was determining the relationship between strength and anthrop...

journal_title：Muscle & nerve

authors： Escobar RG,Munoz KT,Dominguez A,Banados P,Bravo MJ

更新日期：2017-01-01 00:00:00

abstract：:Acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) were studied in the diaphragm of early postnatal rats, using radiometric determination of enzyme activities, velocity sedimentation for separation of molecular forms, and electron microscopic cytochemistry to localize enzymes. AChE activity did not change s...

journal_title：Muscle & nerve

authors： Brzin M,Sketelj J,Tennyson VM,Kiauta T,Budininkas-Schoenebeck M

更新日期：1981-11-01 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：INTRODUCTION:To address the need for greater standardization within the field of electrodiagnostic medicine, the Normative Data Task Force (NDTF) was formed to identify nerve conduction studies (NCS) in the literature, evaluate them using consensus-based methodological criteria derived by the NDTF, and identify those s...

journal_title：Muscle & nerve

authors： Chen S,Andary M,Buschbacher R,Del Toro D,Smith B,So Y,Zimmermann K,Dillingham TR

更新日期：2016-09-01 00:00:00

abstract：:The aim of this study was to estimate normal jitter in voluntarily activated extensor digitorum communis (EDC) and orbicularis oculi (OOc) muscles using a disposable concentric needle electrode (CNE). The EDC of 67 normal subjects (22 males and 45 females, mean age 35.5 +/- 10.2 years) and the OOc of 50 normal subject...

journal_title：Muscle & nerve

authors： Kouyoumdjian JA,Stålberg EV

更新日期：2008-06-01 00:00:00

abstract：:False motor points (FMPs) can occur in intrinsic foot or hand muscles, causing spuriously prolonged distal motor latencies by misrepresenting the compound muscle action potential (CMAP) onset. We investigated the motor point (MP) and possible FMPs in abductor hallucis (AH) by three methods: (1) electrophysiologic mapp...

journal_title：Muscle & nerve

authors： Del Toro DR,Park TA

更新日期：1996-09-01 00:00:00

abstract：INTRODUCTION:The contribution of cranial and thoracic region electromyography (EMG) to diagnostic criteria for amyotrophic lateral sclerosis (ALS) has not been evaluated. METHODS:Clinical and EMG data from each craniospinal region were retrospectively assessed in 470 patients; 214 had ALS. Changes to diagnostic classi...

journal_title：Muscle & nerve

authors： Jenkins TM,Alix JJ,Kandler RH,Shaw PJ,McDermott CJ

更新日期：2016-09-01 00:00:00

abstract：:The motor end-plate fine structure and distribution of junctional acetylcholine receptors (AChRs) in patients with amyotrophic lateral sclerosis (ALS) were studied. Morphometric analysis was carried out in 74 end-plates (92 innervated and 47 denuded postsynaptic regions) from 10 patients with ALS. AChR was studied by ...

journal_title：Muscle & nerve

authors： Tsujihata M,Hazama R,Yoshimura T,Satoh A,Mori M,Nagataki S

更新日期：1984-03-01 00:00:00

abstract：INTRODUCTION:Amyloidosis derived from transthyretin (TTR) molecules is typically caused by mutations of the TTR gene. METHODS:We describe an elderly patient with a severe length-dependent polyneuropathy that unexpectedly proved to be caused by wild-type transthyretin amyloidosis. RESULTS:The diagnosis was made by mus...

journal_title：Muscle & nerve

authors： Lam L,Margeta M,Layzer R

更新日期：2015-07-01 00:00:00

abstract：INTRODUCTION:Muscle growth and regeneration are processes closely associated with proliferation, differentiation, and apoptosis of muscle cells. Death-associated protein 1 (DAP1) has been identified as a negative regulator of autophagy. Little is known about the function of DAP1 in the regulation of myogenesis and sate...

journal_title：Muscle & nerve

authors： Shin J,McFarland DC,Strasburg GM,Velleman SG

更新日期：2013-11-01 00:00:00

abstract：INTRODUCTION:Duchenne muscular dystrophy (DMD) subjects ≥5 years with nonsense mutations were followed for 48 weeks in a multicenter, randomized, double-blind, placebo-controlled trial of ataluren. Placebo arm data (N = 57) provided insight into the natural history of the 6-minute walk test (6MWT) and other endpoints. ...

journal_title：Muscle & nerve

authors： McDonald CM,Henricson EK,Abresch RT,Florence JM,Eagle M,Gappmaier E,Glanzman AM,PTC124-GD-007-DMD Study Group.,Spiegel R,Barth J,Elfring G,Reha A,Peltz S

更新日期：2013-09-01 00:00:00