Motor neuron firing range, axonal conduction velocity, and muscle fiber histochemistry in neuromuscular diseases.

abstract：INTRODUCTION:We sought to determine whether electrical impedance myography (EIM) could serve as a diagnostic procedure for evaluation of radiculopathy. METHODS:Twenty-seven patients with clinically and radiologically diagnosed cervical or lumbosacral radiculopathy who met a "gold standard" definition underwent EIM and...

journal_title：Muscle & nerve

authors： Spieker AJ,Narayanaswami P,Fleming L,Keel JC,Muzin SC,Rutkove SB

更新日期：2013-11-01 00:00:00

abstract：INTRODUCTION:We sought to compare median nerve elasticity between leprosy patients (LPs) and healthy volunteers (HVs) using ultrasound elastography (UE). METHODS:Two radiologists independently measured the strain ratio of the median nerve/flexor digitorum superficialis muscle (MN/FDSM) of 18 LP and 18 HV using real-ti...

journal_title：Muscle & nerve

authors： Nogueira-Barbosa MH,Lugão HB,Gregio-Júnior E,Crema MD,Kobayashi MTT,Frade MAC,Pavan TZ,Carneiro AAO

更新日期：2017-09-01 00:00:00

abstract：:We report a patient with clinical vermiform motor activity, muscle cramps, delayed relaxation of grip, and continuous motor unit discharges who developed mild symmetric symptoms in the upper extremities following a viral infection. Treatment with carbamazepine produced considerable symptomatic improvement. Needle elec...

journal_title：Muscle & nerve

authors： Tandan R,Fries TJ

更新日期：1988-03-01 00:00:00

abstract：INTRODUCTION:We investigated the possible role of intercostal surgical neurolysis in relieving chronic neuropathic pain refractory to other nonsurgical treatments in patients with postsurgical thoracic pain. METHODS:We retrospectively collected clinical data on patients referred to the Neurosurgery Unit of Policlinic ...

journal_title：Muscle & nerve

authors： Cappellari AM,Tiberio F,Alicandro G,Spagnoli D,Grimoldi N

更新日期：2018-11-01 00:00:00

abstract：:As caveolin-3 deficiencies may explain persistent hyper-CK-emia, we performed CAV3 gene mutation analysis and immunohistochemistry for caveolin-3 in 31 patients with idiopathic hyper-CK-emia. In 2 of 29 patients who donated blood, variants in the CAV3 gene were detected. Although immunohistochemical analysis strongly ...

journal_title：Muscle & nerve

authors： Reijneveld JC,Ginjaar IB,Frankhuizen WS,Notermans NC

更新日期：2006-11-01 00:00:00

abstract：:Requirements for ethical review of research involving human subjects are based on widely accepted international standards that are implemented by various national regulations and institutional policies. In the United States, most human research is reviewed by institutional review boards (IRBs) applying federal standar...

journal_title：Muscle & nerve

authors： Wagner RM

更新日期：2003-07-01 00:00:00

abstract：INTRODUCTION:Muscle weakness and functional disability have not been evaluated in a population-based study of patients with myasthenia gravis (MG). METHODS:All patients with MG in a well-defined catchment area were identified in the Danish National Patient Registry. Of the 175 eligible patients, 90 participated and we...

journal_title：Muscle & nerve

authors： Vinge L,Jakobsen J,Andersen H

更新日期：2019-02-01 00:00:00

abstract：:The purpose of the study was to investigate differences in contractile speed, force, and fatigability of the adductor pollicis muscle between 12 patients with multiple sclerosis (MS) and 8 sedentary control subjects matched for age and gender. There were no differences between the patients with MS and control subjects...

journal_title：Muscle & nerve

authors： de Ruiter CJ,Jongen PJ,van der Woude LH,de Haan A

更新日期：2001-09-01 00:00:00

abstract：:Genetic testing is rapidly becoming an increasingly significant part of the diagnostic armamentarium of neuromuscular clinicians. Although technically easy to order, the results of such testing, whether positive or negative, have potentially enormous consequences for the individual tested and for family members. As a ...

journal_title：Muscle & nerve

authors： Su X,Kang PB,Russell JA,Simmons Z

更新日期：2016-12-01 00:00:00

abstract：:Some have suggested that nonfamilial motor neuron disease (MND) may be autoimmune, and the neurological disorder may benefit from immunotherapy. There have been reports of over 30 cases of lymphoproliferative disease (lymphoma, multiple myeloma, Waldenström's macroglobulinemia) with MND, and these patients might he of...

journal_title：Muscle & nerve

authors： Louis ED,Hanley AE,Brannagan TH,Sherman W,Murphy P,Lange DJ,Trojaborg W,Younger DS,Lovelace RE,Latov N,Rowland LP

更新日期：1996-10-01 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

abstract：:In median nerve lesions of the hand, electrophysiologic evaluation of the second lumbrical muscle can help to differentiate between lesions of the common digital nerves and the proper digital nerves, as illustrated by this case report. Median nerve conduction studies to the second lumbrical muscle can be performed by ...

journal_title：Muscle & nerve

authors： Busis NA,Logigian EL,Shahani BT

更新日期：1986-03-01 00:00:00

abstract：:Prolonged exposure to hand-transmitted vibration can cause debilitating neural and vascular dysfunction in humans. It is unclear whether the pathophysiology involves simultaneous or sequential injury of arteries and nerves. The mechanism of vibration injury was investigated in a rat tail model, containing arteries and...

journal_title：Muscle & nerve

authors： Curry BD,Bain JL,Yan JG,Zhang LL,Yamaguchi M,Matloub HS,Riley DA

更新日期：2002-04-01 00:00:00

abstract：:Calmodulin levels have been assessed in whole muscle and primary culture extracts in order to examine the relationship between calmodulin and the accumulation of calcium in dystrophic hamster muscle tissues. Significant decreases in both normal and dystrophic skeletal muscle, tongue, and heart calmodulin levels were o...

journal_title：Muscle & nerve

authors： Klamut HJ,Kotarba JA,Strickland KP

更新日期：1987-01-01 00:00:00

abstract：:The muscle-specific helix-loop-helix (HLH) transcription factors myoD, myogenin, MRF4, and myf-5 are called the muscle regulatory factor family (MRF). Levels of MRFs are strongly regulated by muscle electrical activity and are thought to control downstream genes that are important for muscle phenotype such as the acet...

journal_title：Muscle & nerve

authors： Carlsen H,Gundersen K

更新日期：2000-09-01 00:00:00

abstract：:The loss of contractile protein in Duchenne muscular dystrophy could result from low rates of synthesis, abnormally high rates of protein degradation, or a combination of both. We measured overall protein degradation rates in cultured human muscle cells obtained at biopsy from patients with Duchenne dystrophy or vario...

journal_title：Muscle & nerve

authors： Neville HE,Harrold S

更新日期：1985-03-01 00:00:00

abstract：BACKGROUND:In adult males, cross-sectional area (CSA) for type II muscle fibers is generally larger than for type I fibers. In this cross-sectional study the aim was to compare sex-related CSAs of various muscle fiber types during childhood-to-adulthood transition. METHODS:Percutaneous biopsy samples were obtained fro...

journal_title：Muscle & nerve

authors： Esbjörnsson ME,Dahlström MS,Gierup JW,Jansson EC

更新日期：2020-12-21 00:00:00

abstract：INTRODUCTION:In mitochondrial disease, it is likely that energy substrate depletion leads to paralysis of ATPase-dependent pumps, resulting in membrane depolarization. Axonal depolarization has been demonstrated in a crisis, but not in the resting state. We, therefore, stressed axons using ischemia to see if this would...

journal_title：Muscle & nerve

authors： Ng K,Kumar KR,Sue C,Burke D

更新日期：2013-05-01 00:00:00

abstract：:A new approach to the quantification of fiber type grouping is presented, in which the distribution of histochemical type in a muscle cross section is regarded as a realization of a binary Markov random field (BMRF). Methods for the estimation of the parameters of this model are discussed. The first order BMRF, which ...

journal_title：Muscle & nerve

authors： Venema HW

更新日期：1992-06-01 00:00:00

abstract：INTRODUCTION:Livedoid vasculopathy is a rare dermatological condition characterized by painful ulceration, atrophic scarring, and persistent livedo reticularis. The pathogenesis is unclear. METHODS:We report a patient with biopsy-proven livedoid vasculopathy who developed a progressive sensory ganglionopathy with prof...

journal_title：Muscle & nerve

authors： Alix JJ,Hadjivassiliou M,Ali R,Slater D,Messenger AG,Rao DG

更新日期：2015-02-01 00:00:00

abstract：:There is a paucity of validated tests to quantify hand function impairment due to carpal tunnel syndrome (CTS). The aim of this study was to test the validity and reliability of the Purdue Pegboard Test (PPT) in CTS patients. We compared 190 CTS patients with 122 healthy, age-matched controls. CTS severity was determi...

journal_title：Muscle & nerve

authors： Amirjani N,Ashworth NL,Olson JL,Morhart M,Chan KM

更新日期：2011-02-01 00:00:00

abstract：:We applied the singular value decomposition (SVD) method to study single motor unit firing patterns. Two projects were carried out: (1) a computer simulation study to confirm the meanings of two SVD parameters, the eigenvalue corresponding to the positive-slope eigenvector (PEV) and that corresponding to the negative-...

journal_title：Muscle & nerve

authors： Sun TY,Chen JJ,Lin TS

更新日期：2000-07-01 00:00:00

abstract：:We describe a consanguineous family that had progressive myopathy with rimmed vacuole (RV) formation and amyloid deposition. Patient 1 is a 71-year-old woman with muscle atrophy in the lumbar girdle and lower extremities. Patient 2 is a 40-year-old man (the son of Patient 1) with fatty changes in the biceps femoris mu...

journal_title：Muscle & nerve

authors： Kojima Y,Sakai K,Ishida C,Asaka T,Hamaguchi T,Nozaki I,Fukushima K,Tsuchiya A,Kametani F,Yazaki M,Okino S,Yamada M

更新日期：2009-09-01 00:00:00

abstract：:We previously reviewed the presentation, initial clinical course, and electrodiagnostic features of children with chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). We now report the long-term follow-up of 12 children with idiopathic CIDP, and compare these to 62 adults with idiopathic CIDP. Children of...

journal_title：Muscle & nerve

authors： Simmons Z,Wald JJ,Albers JW

更新日期：1997-12-01 00:00:00

abstract：:Although the blood level of creatine kinase (CK) is the most commonly used marker of muscle injury, there is marked interindividual variability in this measure. Part of this variability may be attributed to variability in the rate of CK clearance from the circulation. In this study, we assessed the possibility that CK...

journal_title：Muscle & nerve

authors： Warren GL,O'farrell L,Rogers KR,Billings KM,Sayers SP,Clarkson PM

更新日期：2006-09-01 00:00:00

abstract：INTRODUCTION:The objective of this study was to identify the pattern of neurological deficits and document electrophysiological changes in women with macromastia. METHODS:Patients with macromastia and neurological complaints underwent clinical evaluation and electrodiagnostic (EDx) studies of the upper limbs. RESULTS...

journal_title：Muscle & nerve

authors： Ansell JR,Buchholz MC

更新日期：2013-02-01 00:00:00

abstract：:Macroelectromyography is used to study the electrical activity of the entire motor unit. The amplitude of the motor unit action potential (MUP), recorded from a bared cannula, is dependent on the number and size of muscle fibers in the motor unit. In most situations of reinnervation the local fiber density (FD) as rec...

journal_title：Muscle & nerve

authors： Stålberg E

更新日期：1982-01-01 00:00:00

abstract：:Muscle sodium-channel disorders cover a spectrum of rare myotonic diseases. In a German family with 17 affected individuals in four generations, we identified a heterozygous missense mutation in exon 24 A1481D (c.4442 C>A) of the voltage-gated sodium channel gene (SCN4A) alpha subunit. Phenotypes of 12 family members ...

journal_title：Muscle & nerve

authors： Schoser BG,Schröder JM,Grimm T,Sternberg D,Kress W

更新日期：2007-05-01 00:00:00

abstract：:Muscle weakness in myasthenia gravis is due to autoantibody-induced loss of functional acetylcholine receptors (AChR). About 15% of myasthenia gravis patients, however, do not have detectable anti-AChR antibodies. To investigate the effect of their plasma immunoglobulins on neuromuscular transmission, mice were inject...

journal_title：Muscle & nerve

authors： Burges J,Vincent A,Molenaar PC,Newsom-Davis J,Peers C,Wray D

更新日期：1994-12-01 00:00:00

abstract：:Electrophysiological studies were performed on the ventral tail nerve of adult rats following intraperitoneal injection of a crude extract of ciguatoxin from known toxic fish flesh. Ciguatoxin induced significant slowing of both mixed and motor nerve conduction velocities and also significant reductions in both motor ...

journal_title：Muscle & nerve

authors： Cameron J,Flowers AE,Capra MF

更新日期：1993-07-01 00:00:00