Muscle and Nerve
1097-4598
0148-639X
Mỹ
Cơ quản chủ quản: WILEY , John Wiley & Sons Inc.
Lĩnh vực:
Cellular and Molecular NeuroscienceNeurology (clinical)Physiology (medical)Physiology
Phân tích ảnh hưởng
Thông tin về tạp chí
Muscle & Nerve is an international and interdisciplinary publication of original contributions, in both health and disease, concerning studies of the muscle, the neuromuscular junction, the peripheral motor, sensory and autonomic neurons, and the central nervous system where the behavior of the peripheral nervous system is clarified. Appearing monthly, Muscle & Nerve publishes clinical studies and clinically relevant research reports in the fields of anatomy, biochemistry, cell biology, electrophysiology and electrodiagnosis, epidemiology, genetics, immunology, pathology, pharmacology, physiology, toxicology, and virology. The Journal welcomes articles and reports on basic clinical electrophysiology and electrodiagnosis. We expedite some papers dealing with timely topics to keep up with the fast-moving pace of science, based on the referees' recommendation.
Các bài báo tiêu biểu
Gene and cell‐mediated therapies for muscular dystrophy ABSTRACT Duchenne muscular dystrophy (DMD ) is a devastating muscle disorder that affects 1 in 3,500 boys. Despite years of research and considerable progress in understanding the molecular mechanism of the disease and advancement of therapeutic approaches, there is no cure for DMD . The current treatment options are limited to physiotherapy and corticosteroids, and although they provide a substantial improvement in affected children, they only slow the course of the disorder. On a more optimistic note, more recent approaches either significantly alleviate or eliminate muscular dystrophy in murine and canine models of DMD and importantly, many of them are being tested in early phase human clinical trials. This review summarizes advancements that have been made in viral and nonviral gene therapy as well as stem cell therapy for DMD with a focus on the replacement and repair of the affected dystrophin gene. Muscle Nerve 47: 649–663, 2013
Tập 47 Số 5 - Trang 649-663 - 2013
Effect of electrode location on surface electromyography changes due to eccentric elbow flexor exercise Abstract Experiments were carried out to determine whether the location of electrodes has an effect on eccentric exercise–induced changes in surface electromyography (sEMG) variables in the biceps brachii muscle. sEMG signals were recorded with a grid of 64 electrodes before and up to 4 days post‐exercise. Root mean square (RMS) and mean power frequency (MNF) were calculated for: (1) each channel; (2) as an average of all channels; and (3) as an average of individual channel rows and columns. Mean muscle‐fiber conduction velocity (CV) was estimated similarly but was based on double‐differential channels. Maximal isometric voluntary torque decreased 21.3 ± 5.6% post‐exercise. The average sEMG variables decreased after the exercise and recovered 2 days (RMS and CV) or 4 days (MNF) post‐exercise. Site‐dependent changes were observed in sEMG variables. We conclude that site‐dependent changes in sEMG variables after eccentric exercise can be detected and are influenced in part by anatomical factors. Muscle Nerve, 2009
Tập 40 Số 4 - Trang 617-625 - 2009
Lengthening our perspective: Morphological, cellular, and molecular responses to eccentric exercise ABSTRACT The response of skeletal muscle to unaccustomed eccentric exercise has been studied widely, yet it is incompletely understood. This review is intended to provide an up‐to‐date overview of our understanding of how skeletal muscle responds to eccentric actions, with particular emphasis on the underlying molecular and cellular mechanisms of damage and recovery. This review begins by addressing the question of whether eccentric actions result in physical damage to muscle fibers and/or connective tissue. We next review the symptomatic manifestations of eccentric exercise (i.e., indirect damage markers, such as delayed onset muscle soreness), with emphasis on their relatively poorly understood molecular underpinnings. We then highlight factors that potentially modify the muscle damage response following eccentric exercise. Finally, we explore the utility of using eccentric training to improve muscle function in populations of healthy and aging individuals, as well as those living with neuromuscular disorders. Muscle Nerve 49 : 155–170, 2014
Tập 49 Số 2 - Trang 155-170 - 2014
Mallory body‐like inclusions in a hereditary congenital neuromuscular disease Abstract Subsequent to an earlier report on clinical and light microscopic data, peculiar Mallory body‐like inclusions are described in muscle fibers of three genetically linked children. These Mallory body‐like inclusions were unlike other well‐defined intramuscular inclusions, such as nemaline, cytoplasmic, fingerprint, or sarcoplasmic bodies, but morphologically quite similar to hepatic Mallory bodies, because they were composed of three components: granular material and two types of filaments. Evidence is presented that these inclusions may contain desmin, the intermediate filament type characteristic of muscle. The exclusive appearance of these Mallory body‐like inclusions in muscle biopsy specimens from theree genetically related children of a large kinship emphasizes the uniqueness of these Mallory body‐like inclusions in these muscle fibers as well as the special form of this congenital neuromuscular disorder.
Tập 6 Số 3 - Trang 195-200 - 1983
The MG‐QOL15 Japanese version: Validation and associations with clinical factors Abstract Introduction: Our study aim was to produce a Japanese translation of the 15‐item Myasthenia Gravis Quality‐of‐Life Scale (MG‐QOL15), assess its reliability and validity, and examine clinical factors affecting self‐perceived QOL in MG. Methods: We evaluated 327 consecutive patients with MG seen at six neurological centers. All patients completed the Japanese version of the MG‐QOL15 (MG‐QOL15‐J), the Beck Depression Inventory—second edition (BDI‐II), and a generic health‐related QOL questionnaire, the SF‐36. Disease severity was determined according to the Myasthenia Gravis Foundation of America (MGFA) quantitative MG score and the MG composite. Results: The MG‐QOL15‐J exhibited adequate internal reliability, test–retest repeatability, and concurrent validity with SF‐36, disease severity, and known‐patient groups categorized by MGFA post‐intervention status. Multivariate analysis revealed severity, dose of oral corticosteroids, and BDI‐II as independent factors negatively affecting QOL. Conclusion: The MG‐QOL15‐J is anticipated to be a valuable clinical measure of QOL in Japanese patients with MG. Muscle Nerve 46: 166–173, 2012
Tập 46 Số 2 - Trang 166-173 - 2012
Efficacy of prednisone for the treatment of ocular myasthenia (EPITOME): A randomized, controlled trial ABSTRACT Introduction : In this study we evaluated the safety, tolerability, and efficacy of prednisone in patients with ocular myasthenia gravis (OMG) concurrently treated with pyridostigmine. Methods : This investigation was a randomized, double‐blind, placebo‐controlled trial. Participants whose symptoms failed to remit on pyridostigmine were randomized to receive placebo or prednisone, initiated at 10 mg every other day, and titrated to a maximum of 40 mg/day over 16 weeks. The primary outcome measure was treatment failure. Results : Fewer subjects were randomized than the 88 planned. Of the 11 randomized, 9 completed 16 weeks of double‐blind therapy. Treatment failure incidence was 100% (95% CI 48%–100%) in the placebo group (n = 5) vs. 17% (95% CI 0%–64%) in the prednisone group, P = 0.02 (n = 6). Median time to sustained minimal manifestation status (MMS) was 14 weeks, requiring an average prednisone dose of 15 mg/day. Adverse events were infrequent and generally mild in both groups. Conclusions : A strategy of low‐dose prednisone with gradual escalation appears to be safe, well‐tolerated, and effective in treating OMG. Muscle Nerve 53: 363–369, 2016
Tập 53 Số 3 - Trang 363-369 - 2016
<scp>SARS‐CoV</scp>‐2–associated <scp>Guillain‐Barré</scp> syndrome with dysautonomia
Tập 62 Số 2 - 2020
Evidence‐based guideline: Neuromuscular ultrasound for the diagnosis of carpal tunnel syndrome Abstract Introduction: The purpose of this study was to develop an evidence‐based guideline for the use of neuromuscular ultrasound in the diagnosis of carpal tunnel syndrome (CTS). Methods: Two questions were asked: (1) What is the accuracy of median nerve cross‐sectional area enlargement as measured with ultrasound for the diagnosis of CTS? (2) What added value, if any, does neuromuscular ultrasound provide over electrodiagnostic studies alone for the diagnosis of CTS? A systematic review was performed, and studies were classified according to American Academy of Neurology criteria for rating articles of diagnostic accuracy (question 1) and for screening articles (question 2). Results: Neuromuscular ultrasound measurement of median nerve cross‐sectional area at the wrist is accurate and may be offered as a diagnostic test for CTS (Level A). Neuromuscular ultrasound probably adds value to electrodiagnostic studies when diagnosing CTS and should be considered in screening for structural abnormalities at the wrist in those with CTS (Level B). Muscle Nerve 46: 287–293, 2012
Tập 46 Số 2 - Trang 287-293 - 2012
Progressive exercise intolerance associated with a new muscle‐restricted nonsense mutation (G142X) in the mitochondrial cytochrome <i>b</i> gene Abstract We report a novel nonsense mitochondrial cytochrome b mutation (G15170A) in a 40‐year‐old woman with progressive exercise intolerance and lactic acidosis. Muscle biopsy showed several cytochrome c oxidase–positive ragged‐red fibers, and reduced activities of respiratory chain complexes I and III. This mutation, resulting in the loss of 228 amino acids of the protein, was very abundant in the patient's muscle, but undetectable in lymphocytes and fibroblasts. Clinical and laboratory data indicate that this defect is the primary cause of the disease, thus adding a new mutation in the cytochrome b gene among the growing number of patients with exercise intolerance and lactic acidosis. Muscle Nerve 28: 508–511, 2003
Tập 28 Số 4 - Trang 508-511 - 2003
A morphometric study of intrafascicular vessels of mammalian sciatic nerve Abstract Intrafascicular vessel profiles were measured with a Quantimet image analyzer in 1‐μm transverse sections of sciatic nerves of rats and compared with those of (“white”) skeletal muscle. Blood vessels occupy the same percentage of the total tissue area in nerve and muscle tissues. The nerve, however, has much larger capillaries (about 1.7 ×) spaced farther apart (about 2.5 ×). Comparison of 3½ month with 1‐year‐old rats showed that muscle capillaries increased in diameter (slightly, but significantly) at maturity, but those of the nerve decreased (also significantly). Vascular percentages of total tissue areas did not change. Nerve and muscle samples from monkey, rabbit, mouse, and cat show that the same striking pattern of large, widely spaced vessels distinguishes the nerve from other tissues. Minor interspecies variations exist. The nerve may contain as much blood as the muscle but its angioarchitecture suggests a lower exchange capacity.
Tập 7 Số 7 - Trang 524-534 - 1984