Decremental response of the nasalis and hypothenar muscles in myasthenia gravis.

abstract：INTRODUCTION:Accuracy of needle electromyography is typically ensured by use of anatomical landmarks and auditory feedback related to voluntary activation of the targeted muscle; however, in certain clinical situations, landmarks may not be palpable, auditory feedback may be limited or not present, and targeting a spec...

journal_title：Muscle & nerve

authors： Boon AJ,Oney-Marlow TM,Murthy NS,Harper CM,McNamara TR,Smith J

更新日期：2011-07-01 00:00:00

abstract：:We report a family with familial amyloid polyneuropathy (FAP), showing an early-onset and a fatal outcome before age 30. Transthyretin (TTR) gene analysis showed one point mutation (T-->C change) in the second base of codon 55, and the corresponding amino acid substitution of proline (Pro) for leucine (Leu) was confir...

journal_title：Muscle & nerve

authors： Yamamoto K,Hsu SP,Yoshida K,Ikeda S,Nakazato M,Shiomi K,Cheng SY,Furihata K,Ueno I,Yanagisawa N

更新日期：1994-06-01 00:00:00

abstract：:This article describes a 37-year-old woman with progressive external ophthalmoplegia, peripheral neuropathy, and chronic intractable diarrhea. Laboratory studies disclosed lactic acidosis, ragged red fibers lacking cytochrome c oxidase, high-normal muscular mitochondrial enzymes, demyelinating neuropathy, leukoencepha...

journal_title：Muscle & nerve

authors： Uncini A,Servidei S,Silvestri G,Manfredi G,Sabatelli M,Di Muzio A,Ricci E,Mirabella M,Di Mauro S,Tonali P

更新日期：1994-06-01 00:00:00

abstract：INTRODUCTION:Amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD) are considered part of the same pathological spectrum. There is an increased risk of ALS in patients who have had melanoma. The risk of FTLD in melanoma (or cancer) patients is unknown. We aimed to study if C9ORF72 expansion i...

journal_title：Muscle & nerve

authors： Tábuas-Pereira M,Almendra L,Almeida MR,Durães J,Pinho A,Matos A,Negrão L,Geraldo A,Santana I

更新日期：2019-03-01 00:00:00

abstract：:The purpose of this study was to establish normal values of muscle thickness, ratio of muscle thickness to subcutaneous fat thickness, and muscle echo intensity in children between 11 weeks and 16 years of age. Transverse scans of four muscles were made by standardized real-time ultrasound examination. The scans were ...

journal_title：Muscle & nerve

authors： Scholten RR,Pillen S,Verrips A,Zwarts MJ

更新日期：2003-06-01 00:00:00

abstract：:We studied the effects of prolonged high-frequency stimulation in normal rat tail nerves. Nerves could conduct impulses at 50 Hz for 5 hours without complete conduction block. However, over time there was a significant decrease in amplitude and increase in latency of the compound nerve action potential (CNAP), which g...

journal_title：Muscle & nerve

authors： Robinson LR,Nielsen VK

更新日期：1990-04-01 00:00:00

abstract：:The values obtained from two different macro EMG methods were compared, and found to be different. Normally, macro electromyography (EMG) is performed with a modified single fiber (SF) needle using the SF potential as a trigger; a new method recommends a modified concentric needle and triggers on the concentric EMG si...

journal_title：Muscle & nerve

authors： Nix WA,Scherer A

更新日期：1992-02-01 00:00:00

abstract：:There is a suprasegmental influence on the masseter reflex (MassR) in animals, which is mediated via the fifth nerve spinal nucleus (5SpN). Corresponding data in humans are lacking. Out of 268 prospectively recruited patients with clinical signs of acute brainstem infarctions, we identified 38 with magnetic resonance ...

journal_title：Muscle & nerve

authors： Thömke F,Marx JJ,Cruccu G,Stoeter P,Hopf HC

更新日期：2007-10-01 00:00:00

abstract：:The dystrophin protein complex (DPC), composed of at least 10 proteins that associate with dystrophin, is critical for the maintenance of normal muscle fiber structure and physiology. In this study, we used immunohistochemistry and confocal microscopy to examine the relative abundance and distribution of several of th...

journal_title：Muscle & nerve

authors： Draviam R,Billington L,Senchak A,Hoffman EP,Watkins SC

更新日期：2001-02-01 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：:Local cooling of the muscle resulted in significant increases in M wave surface areas in patients with ALS, myasthenia gravis, the Lambert-Eaton myasthenic syndrome, and also in controls. The most striking increases were seen in patients with early ALS who had minimal lower motor neuron involvement and/or little defec...

journal_title：Muscle & nerve

authors： Denys EH

更新日期：1990-07-01 00:00:00

abstract：:Sucrose gap and intra-axonal recording techniques were used to identify the types of ion channels and inward rectification that are present in regenerated axons of adult (greater than 8 weeks) rat sciatic nerve after crush injury. In sucrose gap recordings, 4-aminopyridine (4-AP) led to slight broadening of the compou...

journal_title：Muscle & nerve

authors： Gordon TR,Kocsis JD,Waxman SG

更新日期：1991-07-01 00:00:00

abstract：INTRODUCTION:Electrical stimulation of denervated muscle has been shown to minimize atrophy and fibrosis and increase force in animal and human models. However, electrical stimulation after nerve repair is controversial due to questions of efficacy. METHODS:Using a rat model, we investigated the efficacy of short-term...

journal_title：Muscle & nerve

authors： Willand MP,Holmes M,Bain JR,Fahnestock M,De Bruin H

更新日期：2013-08-01 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：:Changes in contractile rate of force development (RFD), measured within a short time interval from contraction initiation, were measured after a period of strength training that led to increases in muscle fascicle length but no measurable change in neuromuscular activity. The relationship between training-induced shif...

journal_title：Muscle & nerve

authors： Blazevich AJ,Cannavan D,Horne S,Coleman DR,Aagaard P

更新日期：2009-04-01 00:00:00

abstract：:Motor unit (MU) number and size estimates were obtained from the human flexor digiti minimi muscle using histological methods. Ten adult fresh cadavers (33-74 years old) were used. The number of MUs was 130 +/- 15 and the MU size was 108 +/- 10. These values are similar to those reported for other hypothenar muscles, ...

journal_title：Muscle & nerve

authors： Santo Neto H,de Carvalho VC,Marques MJ

更新日期：1998-01-01 00:00:00

abstract：:Myasthenia gravis (MG) and its animal model experimental autoimmune myasthenia gravis (EAMG) are caused by autoantibodies against nicotinic acetylcholine receptor (AChR) in skeletal muscle. The production of anti-AChR antibodies is mediated by cytokines produced by CD4+ and CD8+ T helper (Th) cells. Emerging investiga...

journal_title：Muscle & nerve

authors： Zhang GX,Navikas V,Link H

更新日期：1997-05-01 00:00:00

abstract：:Evaluation of the precise molecular dynamics of endplate maintenance and reorganization has been limited by the lack of available in vitro preparations. We describe an organ culture preparation of mouse diaphragm muscle which permits long-term maintenance of muscle viability. Spontaneous fibrillations, increased level...

journal_title：Muscle & nerve

authors： Wetzel DM,Salpeter MM

更新日期：1991-10-01 00:00:00

abstract：BACKGROUND:To collect preliminary data on the effects of mexiletine on cortical and axonal hyperexcitability in sporadic amyotrophic lateral sclerosis (ALS) in a phase 2 double-blind randomized controlled trial. METHODS:Twenty ALS subjects were randomized to placebo and mexiletine 300 or 600 mg daily for 4 wk and asse...

journal_title：Muscle & nerve

authors： Weiss MD,Macklin EA,McIlduff CE,Vucic S,Wainger BJ,Kiernan MC,Goutman SA,Goyal NA,Rutkove SB,Ladha SS,Chen IA,Harms MB,Brannagan TH,Lacomis D,Zivkovic S,Ma M,Wang LH,Simmons Z,Rivner MH,Shefner JM,Cudkowicz ME,A

更新日期：2020-12-19 00:00:00

abstract：INTRODUCTION:Cranial muscle fasciculations may be difficult to detect in amyotrophic lateral sclerosis (ALS). Ultrasound (US) detection of fasciculations in these muscles may have clinical utility. METHODS:Patients with suspected ALS were prospectively enrolled. Nerve conduction studies, needle electromyography (EMG),...

journal_title：Muscle & nerve

authors： O'gorman CM,Weikamp JG,Baria M,Van Den Engel-Hoek L,Kassardjian C,Van Alfen N,Boon AJ

更新日期：2017-12-01 00:00:00

abstract：:Six members originating from two families with hereditary motor and sensory neuropathy (hypertrophic and neuronal types) were noted to have enlarged calf muscles. Muscle computed tomography revealed that muscle enlargement in the propositus of the family with the hypertrophic type of HMSN was due to an increase in mus...

journal_title：Muscle & nerve

authors： De Visser M,Hoogendijk JE,Ongerboer BW,Verbeeten BJ Jr

更新日期：1990-01-01 00:00:00

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：:We studied 137 ulnar nerves and abductor digiti minimi (ADM) muscles in 70 patients with amyotrophic lateral sclerosis (ALS), and correlated the results with ADM strength graded on the Medical Research Council (MRC) scale, to address the potential value of a standardized neurophysiological assessment of this nerve-mus...

journal_title：Muscle & nerve

authors： de Carvalho M,Swash M

更新日期：2000-03-01 00:00:00

abstract：:The F-wave was used to estimate the fastest motor nerve conduction velocity (MNCV) along the proximal segment (spinal cord to knee) of the axons of the tibial nerve in 65 control subjects, 8 patients with diabetic polyneuropathy, and 4 patients with Charcot-Marie-Tooth disease. Terminal latencies and MNCV along the di...

journal_title：Muscle & nerve

authors： Panayiotopoulos CP,Scarpalezos S,Nastas PE

更新日期：1978-05-01 00:00:00

abstract：:The aim of this study was to investigate the fasciculation potentials (FPs) in the small-peripheral muscles of the foot and hand and the possible associated factors, in a healthy population. One hundred-twenty-two normal individuals (65 men and 57 women), aged 17-67 years (mean 39.96, SD=12.76) participated in the stu...

journal_title：Muscle & nerve

authors： Mitsikostas DD,Karandreas N,Coutsopetras P,Piperos P,Lygidakis C,Papageorgiou C

更新日期：1998-04-01 00:00:00

abstract：:We have developed an algorithm, called multi-motor unit action potential analysis (MMA), to aid quantification in routine needle EMG examination. In only 5-8 min, it was possible to extract, analyze, and validate 20 motor unit action potentials (MUAPs). In the biceps muscle of normal subjects, the MUAP measurements ar...

journal_title：Muscle & nerve

authors： Nandedkar SD,Barkhaus PE,Charles A

更新日期：1995-10-01 00:00:00

abstract：INTRODUCTION:We sought to define the whole-body MRI (WB-MRI) fingerprint of muscle involvement in pediatric LMNA-related dystrophy (LMNA-RD) and to compare it with SEPN1-related myopathy (SEPN1-RM). METHODS:Signal abnormality and atrophy in 109 muscles were scored by semiquantitative scales in 8 children with LMNA-RD ...

journal_title：Muscle & nerve

authors： Gómez-Andrés D,Dabaj I,Mompoint D,Hankiewicz K,Azzi V,Ioos C,Romero NB,Ben Yaou R,Bergounioux J,Bonne G,Richard P,Estournet B,Yves-Carlier R,Quijano-Roy S

更新日期：2016-08-01 00:00:00

abstract：:Spatial distribution of motor endplates affects the shape of the electrical activity recorded from muscle. In order to provide information for realistic models of action potential propagation within muscles, we assembled three-dimensional maps of the motor endplates of the rat medial gastrocnemius (MGM) and lateral ga...

journal_title：Muscle & nerve

authors： Prodanov D,Thil MA,Marani E,Delbeke J,Holsheimer J

更新日期：2005-09-01 00:00:00

abstract：INTRODUCTION:This study compares the acute and chronic response of high-load resistance training (HL) to low-load resistance training with low blood flow restriction (LL-BFR) pressure. METHODS:Participants completed elbow flexion with either HL or LL-BFR or nonexercise. In the chronic study, participants in the HL and...

journal_title：Muscle & nerve

authors： Kim D,Loenneke JP,Ye X,Bemben DA,Beck TW,Larson RD,Bemben MG

更新日期：2017-12-01 00:00:00

abstract：:Exercise intolerance with myalgia, muscle stiffness, and recurrent rhabdomyolysis due to mutations in the DMD gene can mimic metabolic myopathies leading to delayed or inaccurate diagnoses. In this retrospective chart review, we report 3 unrelated boys with exertional myalgia, muscle stiffness, myoglobinuria, and norm...

journal_title：Muscle & nerve

authors： Veerapandiyan A,Shashi V,Jiang YH,Gallentine WB,Schoch K,Smith EC

更新日期：2010-12-01 00:00:00