A RYR1 mutation associated with recessive congenital myopathy and dominant malignant hyperthermia in Asian families.

abstract：:To study causes of obturator neuropathy and to correlate them with outcome, we retrospectively studied patients seen at the Mayo Clinic electromyography (EMG) laboratory from 1975 through 1999 with a diagnosis of obturator neuropathy. Twenty-two patients with obturator neuropathy were identified. The clinical outcome ...

journal_title：Muscle & nerve

authors： Sorenson EJ,Chen JJ,Daube JR

更新日期：2002-04-01 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：:In spite of extensive studies it is unclear whether impaired fasting glucose (IFG) or impaired glucose tolerance (IGT), i.e., impaired glucose metabolism (IGM), causes diabetic sensorimotor polyneuropathy (DSPN) or chronic idiopathic axonal polyneuropathy (CIAP); the results and conclusions vary considerably in differ...

journal_title：Muscle & nerve

authors： Dyck PJ,Dyck PJ,Klein CJ,Weigand SD

更新日期：2007-10-01 00:00:00

abstract：INTRODUCTION:Hydroxymethylglutaryl-coenzyme A (HMG-CoA) reductase inhibitors, or statins, are widely used drugs for hyperlipidemia and are generally well-tolerated, but the can produce skeletal muscle toxicity. The molecular mechanisms driving statin myopathy are unknown. We investigated the effects of statin treatment...

journal_title：Muscle & nerve

authors： Hubal MJ,Reich KA,De Biase A,Bilbie C,Clarkson PM,Hoffman EP,Thompson PD

更新日期：2011-09-01 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:Bifacial weakness with paresthesias is a rare subtype of Guillain-Barré syndrome (GBS), characterized by facial diplegia in the absence of any other cranial neuropathies, limb weakness, or ataxia. Frequently, patients also complain of distal limb paresthesias before or at the time they develop facial weakn...

journal_title：Muscle & nerve

authors： Morgan C,Fuller G,Wakerley BR

更新日期：2016-05-01 00:00:00

abstract：INTRODUCTION:Evaluation of nerve mechanical properties has the potential to improve assessment of nerve impairment. Shear wave velocity, as measured by using shear wave (SW) ultrasound elastography, is a promising indicator of nerve mechanical properties such as stiffness. However, elucidation of external factors that ...

journal_title：Muscle & nerve

authors： Rugel CL,Franz CK,Lee SSM

更新日期：2020-05-01 00:00:00

abstract：:To determine which sensory nerve conduction studies (S-NCS) are helpful in detecting supraclavicular axon loss brachial plexopathies, we selected 53 cases (of 417 reviewed) in whom complicating factors were absent and which, by needle electrode examination findings, involved only a single "truncal" element (upper, mid...

journal_title：Muscle & nerve

authors： Ferrante MA,Wilbourn AJ

更新日期：1995-08-01 00:00:00

abstract：:Reinnervation of a free muscle graft by nerves from an adjacent intact muscle is called muscular neurotization. This paper investigates the mechanisms and stimuli responsible for muscular neurotization in the rat. Sternohyoid or sternomastoid muscles were transplanted as free muscle grafts to the ventral surface of an...

journal_title：Muscle & nerve

authors： Must R

更新日期：1987-07-01 00:00:00

abstract：INTRODUCTION:Contradictory reports of the myosin heavy chain (MHC) composition of adult human suprahyoid muscles leave unresolved the extent to which these muscles express developmental and unconventional MHC. METHODS:By immunohistochemistry, separation sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PA...

journal_title：Muscle & nerve

authors： Luo Q,Douglas M,Burkholder T,Sokoloff AJ

更新日期：2014-04-01 00:00:00

abstract：:We measured distal sympathetic and vagal function in 73 consecutive patients with diabetic neuropathy seen at the Mayo Autonomic Reflex Laboratory. Postganglionic sympathetic failure measured proximally within the foot occurred as commonly as vagal failure (58% and 55%, respectively) and occurred much more frequently ...

journal_title：Muscle & nerve

authors： Low PA,Zimmerman BR,Dyck PJ

更新日期：1986-09-01 00:00:00

abstract：:Mutations in the myelin protein zero gene (MPZ) are associated with certain demyelinating neuropathies, and in particular with Charcot-Marie-Tooth disease type 1B (CMT1B), Dejerine-Sottas syndrome, and congenital hypomyelination. MPZ mutations affecting the protein's transmembrane domain are generally associated with ...

journal_title：Muscle & nerve

authors： Eggers SD,Keswani SC,Melli G,Cornblath DR

更新日期：2004-06-01 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：:Although the molecular defect causing Becker muscular dystrophy (BMD) has been identified, the biochemical mechanisms that lead to muscle necrosis remain unclear. Exercise-related muscle metabolism in 9 mildly affected BMD patients was assessed by muscle 31-phosphorus magnetic resonance spectroscopy ((31)P MRS) during...

journal_title：Muscle & nerve

authors： Tosetti M,Linsalata S,Battini R,Volpi L,Cini C,Presciutti O,Muntoni F,Cioni G,Siciliano G

更新日期：2011-11-01 00:00:00

abstract：:Type-specific antibodies to the polymorphic types of collagen have been used to study their distribution in polymyositis. Dramatic increases were observed in the staining with antibodies to Type III collagen and, to a lesser extent, with antibodies to Types I, IV, and V. The changes in capillary and endomysial basemen...

journal_title：Muscle & nerve

authors： Duance VC,Black CM,Dubowitz V,Hughes GR,Bailey AJ

更新日期：1980-11-01 00:00:00

abstract：INTRODUCTION:Respiratory and locomotor skeletal muscle dysfunction are common findings in chronic obstructive pulmonary disease (COPD); however, the mechanisms that cause muscle impairment in COPD are unclear. Because Ca2+ signaling in excitation-contraction (E-C) coupling is important for muscle activity, we hypothesi...

journal_title：Muscle & nerve

authors： Robison P,Sussan TE,Chen H,Biswal S,Schneider MF,Hernández-Ochoa EO

更新日期：2017-08-01 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：:This study attempts to gain a better understanding of the primary cause of doxorubicin myotoxicity to aid in the development of a protocol to increase its effectiveness in treating muscle spasm diseases. The time course of acute injury to the orbicularis oculi muscle after injection of doxorubicin into the eyelids of ...

journal_title：Muscle & nerve

authors： McLoon LK,Luo XX,Wirtschafter J

更新日期：1993-07-01 00:00:00

abstract：:The fastest median and ulnar velocities derived by recording motor and mixed nerve action potentials, F waves, H-reflexes, and somatosensory evoked potentials (SEPs) were compared. H-reflex recording was facilitated by employing selective group Ia excitation during voluntary muscular contraction. Mixed nerve, SEP, and...

journal_title：Muscle & nerve

authors： Eisen A,Hoirch M,White J,Calne D

更新日期：1984-10-01 00:00:00

abstract：:Muscle of donor origin was formed after implantation of H-2Kb-tsA58 muscle precursor cells (mpc) into irradiated mdx nu/nu mouse muscles. A series of injections of the myotoxin, notexin, which destroys mature muscle fibers but spares muscle precursor cells and other tissues, was made into the mpc-injected muscles, lea...

journal_title：Muscle & nerve

authors： Gross JG,Morgan JE

更新日期：1999-02-01 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：:Action potentials of rabbit masseter motor units (n = 42) were registered at different jaw angles to examine whether the shape of the action potential is related to length of muscle fibers in motor units and depends on the intramuscular location of the motor unit. Twitches were elicited by stimulating motoneurons in t...

journal_title：Muscle & nerve

authors： Turkawski SJ,van Eijden TM

更新日期：2001-11-01 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：INTRODUCTION:Despite the existence of guidelines, painful neuropathy is often inappropriately treated. We sought to determine the effectiveness of a clinical decision support system on guideline-recommended medication use. METHODS:We randomized neurology providers, stratified by subspecialty, to a best practice alert ...

journal_title：Muscle & nerve

authors： Reynolds EL,Burke JF,Banerjee M,Callaghan BC

更新日期：2020-05-01 00:00:00

abstract：:When an active muscle is stretched, the force increases due to strain of contractile and noncontractile proteins. We examined this force enhancement in rat extensor digitorum longus (EDL) and soleus muscles, which differ in their composition of these proteins, and their susceptibility to damage. Small stretches were a...

journal_title：Muscle & nerve

authors： Ramsey KA,Bakker AJ,Pinniger GJ

更新日期：2010-11-01 00:00:00

abstract：:Normative values of muscle fiber conduction velocity depend on the conditions in which conduction velocity is measured due to the velocity recovery function (VRF) of muscle fibers. In this study the VRF of the compound muscle action potential (CMAP) was assessed following doublet and triplet stimulation in order to in...

journal_title：Muscle & nerve

authors： Kamavuako EN,Hennings K,Farina D

更新日期：2007-08-01 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: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：:Motor unit action potentials (MUAPs) evoked by repetitive, low-intensity transcranial magnetic stimulation can be modeled as a Poisson process. A mathematical consequence of such a model is that the ratio of the variance to the mean of the amplitudes of motor evoked potentials (MEPs) should provide an estimate of the ...

journal_title：Muscle & nerve

authors： Kaelin-Lang A,Conforto AB,Z'Graggen W,Hess CW

更新日期：2010-11-01 00:00:00

abstract：:To enable the quantitative assessment of peripheral nerve structure and function, we determined the normal values for sural nerve hydration structure as measured by magnetic resonance proton imaging, and for neurological function with scores for neuropathic symptoms, signs, and nerve conduction properties. Normal huma...

journal_title：Muscle & nerve

authors： Eaton RP,Sibbitt WL Jr,Bicknell JM,King MK,Griffey RH,Sibbitt RR

更新日期：1993-03-01 00:00:00