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https://www.readbyqxmd.com/read/28340375/repetitive-tms-in-right-sensorimotor-areas-affects-the-selection-and-completion-of-contralateral-movements
#1
Maria Gutierrez-Herrera, Styrmir Saevarsson, Thomas Huber, Joachim Hermsdörfer, Waltraud Stadler
Although the existence of directional motor deficits (DMD) associated with movement planning and/or execution seems to be widely recognized, neglect and single cell studies examining their neuroanatomical foundation have produced contradictory and inconclusive findings. The present study assessed the occurrence of DMD following the application of repetitive transcranial magnetic stimulation (rTMS) over two regions, as commonly reported in the neglect literature, namely the right middle frontal gyrus (rMFG) and the right angular gyrus (rAG)...
February 24, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28339469/non-invasive-evaluation-of-muscle-disease-in-the-canine-model-of-duchenne-muscular-dystrophy-by-electrical-impedance-myography
#2
Chady H Hakim, Alex Mijailovic, Thais B Lessa, Joan R Coates, Carmen Shin, Seward B Rutkove, Dongsheng Duan
Dystrophin-deficient dogs are by far the best available large animal models for Duchenne muscular dystrophy (DMD), the most common lethal childhood muscle degenerative disease. The use of the canine DMD model in basic disease mechanism research and translational studies will be greatly enhanced with the development of reliable outcome measures. Electrical impedance myography (EIM) is a non-invasive painless procedure that provides quantitative data relating to muscle composition and histology. EIM has been extensively used in neuromuscular disease research in both human patients and rodent models...
2017: PloS One
https://www.readbyqxmd.com/read/28335097/effects-of-dietary-forage-to-concentrate-ratio-on-nutrient-digestibility-and-enteric-methane-production-in-growing-goats-capra-hircus-hircus-and-sika-deer-cervus-nippon-hortulorum
#3
Youngjun Na, Dong Hua Li, Sang Rak Lee
Two experiments were conducted to determine the effects of forage-to-concentrate (F:C) ratio on the nutrient digestibility and enteric methane (CH4) emission in growing goats and Sika deer. Three male growing goats (BW = 19.0 ± 0.7 kg) and three male growing deer (BW = 19.3 ± 1.2 kg) were respectively allotted to a 3 × 3 Latin square design with an adaptation period of 7 d and a data collection period of 3 d. Respiration-metabolism chambers were used for measuring the enteric CH4 emission. Treatments of low (25:75), moderate (50:50), and high (73:27) F:C ratios were given to both goats and Sika deer...
March 21, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28334232/walking-responses-of-tribolium-castaneum-coleoptera-tenebrionidae-to-its-aggregation-pheromone-and-odors-of-wheat-infestations
#4
B J Stevenson, L Cai, C Faucher, M Michie, A Berna, Y Ren, A Anderson, S Chyb, W Xu
The red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae), is a worldwide pest of stored grains. Using "Y"-tube olfactometry we studied the response of T. castaneum to odors from simulated wheat infestations containing conspecifics, and infestations containing the lesser grain borer, Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae), and the granary weevil Sitophilus granarius (L.) (Coleoptera: Curculionidae). Tribolium castaneum larvae were significantly attracted to odors from all three test species...
March 3, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334037/ang1-treatment-reduces-muscle-pathology-and-prevents-a-decline-in-perfusion-in-dmd-mice
#5
Kelly M Gutpell, Nikola Tasevski, Boaz Wong, William Thomas Hrinivich, Feng Su, Jennifer Hadway, Lise Desjardins, Ting-Yim Lee, Lisa Marie Hoffman
Vascular endothelial growth factor (VEGF) and other pro-angiogenic growth factors have been investigated to enhance muscle tissue perfusion and repair in Duchenne muscular dystrophy (DMD). Current understanding is limited by a lack of functional data following in vivo delivery of these growth factors. We previously used dynamic contrast-enhanced computed tomography to monitor disease progression in murine models of DMD, but no study to date has utilized this imaging technique to assess vascular therapy in a preclinical model of DMD...
2017: PloS One
https://www.readbyqxmd.com/read/28332368/multiplex-ligation-dependent-probe-amplification-in-x-linked-recessive-muscular-dystrophy-in-korean-subjects
#6
Mi Ri Suh, Kyung A Lee, Eun Young Kim, Jiho Jung, Won Ah Choi, Seong Woong Kang
PURPOSE: Duchenne muscular dystrophy (DMD) and Becker muscular dystrophy (BMD) are similar genetic disorders whose patterns of mutation and disease phenotypes might be expected to show differences among different countries. We analyzed multiplex ligation-dependent probe amplification (MLPA) data in a large number of Korean patients with DMD/BMD. MATERIALS AND METHODS: We obtained 130 positive MLPA results (86 DMD, 27 BMD, and 17 female carriers) from 272 candidates (237 clinically suspected patients and 35 possible female carriers) who took part in this study...
May 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28326714/-effect-of-pinus-massoniana-needle-extract-on-root-dentin-demineralization-in-vitro
#7
Tang Chengfang, Ruan Jianping, Zhu Yong, Li Zixia, Zuo Yanping, Xu Hongyan
OBJECTIVE: This study aims to evaluate the effects of Pinus massoniana needle extract (PMNE) on inhibiting demineralization of root dentin. METHODS: Root dentin blocks were randomly divided into distilled deionized water (DDW) group, fluoride sodium (NaF) group, and 4%, 8% and 12% PMNE groups according to the experimental solution used in the process of pH cycling in each group. All specimens in each group experienced pH cycling for 8 d. The dentin mineral density (DMD) of the normal dentin and demineralized dentin and their D-value (ΔDMD) were determined using micro computed tomography...
October 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28325301/increased-expression-of-laminin-subunit-alpha-1-chain-by-dcas9-vp160
#8
Arnaud Perrin, Joël Rousseau, Jacques P Tremblay
Laminin-111 protein complex links the extracellular matrix to integrin α7β1 in sarcolemma, thus replacing in dystrophic muscles links normally insured by the dystrophin complex. Laminin-111 injection in mdx mouse stabilized sarcolemma, restored serum creatine kinase to wild-type levels, and protected muscles from exercised-induced damages. These results suggested that increased laminin-111 is a potential therapy for DMD. Laminin subunit beta 1 and laminin subunit gamma 1 are expressed in adult human muscle, but laminin subunit alpha 1 (LAMA1) gene is expressed only during embryogenesis...
March 17, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28325281/systemic-antisense-therapeutics-for-dystrophin-and-myostatin-exon-splice-modulation-improve-muscle-pathology-of-adult-mdx-mice
#9
Ngoc Lu-Nguyen, Alberto Malerba, Linda Popplewell, Fred Schnell, Gunnar Hanson, George Dickson
Antisense-mediated exon skipping is a promising approach for the treatment of Duchenne muscular dystrophy (DMD), a rare life-threatening genetic disease due to dystrophin deficiency. Such an approach can restore the disrupted reading frame of dystrophin pre-mRNA, generating a truncated form of the protein. Alternatively, antisense therapy can be used to induce destructive exon skipping of myostatin pre-mRNA, knocking down myostatin expression to enhance muscle strength and reduce fibrosis. We have reported previously that intramuscular or intraperitoneal antisense administration inducing dual exon skipping of dystrophin and myostatin pre-mRNAs was beneficial in mdx mice, a mouse model of DMD, although therapeutic effects were muscle type restricted, possibly due to the delivery routes used...
March 17, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28324973/force-controlled-ultrasound-to-measure-passive-mechanical-properties-of-muscle-in-duchenne-muscular-dystrophy
#10
Anne J Pigula, Jim S Wu, Matthew W Gilbertson, Basil T Darras, Seward B Rutkove, Brian W Anthony
The purpose of this study is to assess differences in skeletal muscle compressibility between patients with Duchenne muscular dystrophy (DMD) and normal subjects. The transverse passive mechanical properties of muscle, particularly those related to stiffness and elasticity, can be measured using force-controlled ultrasound. We acquired ultrasound videos of muscle compression under known pressures in the biceps and quadriceps in 23 boys with DMD and 20 age-matched healthy controls. We calculated the bulk linear spring constant, nonlinear stress-strain response, and average Young's modulus for each...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28321933/exploring-the-cause-of-aggregation-and-reduced-zn-binding-affinity-by-g85r-mutation-in-sod1-rendering-amyotrophic-lateral-sclerosis
#11
E Srinivasan, R Rajasekaran
Amyotrophic lateral sclerosis (ALS), a lethal neurodegenerative disorder is characterized by the degeneration of upper and lower motor neuron. ALS occurs due to various notably prominent missense mutations, in gene encoding Cu-Zn superoxide dismutase (SOD1) thereby leading to aggregation, dysfunction and reduced Zn binding affinity. In this study, one such mutation, G85R was explored in comparison with wild type SOD1, using discrete molecular dynamics (DMD). Accordingly, the conformational changes were significantly observed in mutant SOD1, through various geometrical parameters, which substantiated the difference in conformational deviation, flexibility and compactness, thus stipulating a root cause for aggregation...
March 21, 2017: Proteins
https://www.readbyqxmd.com/read/28320112/multiple-sclerosis-patients-understanding-and-preferences-for-risks-and-benefits-of-disease-modifying-drugs-a-systematic-review
#12
REVIEW
Gurpreet K Reen, Eli Silber, Dawn W Langdon
BACKGROUND: Multiple sclerosis (MS) patients are faced with complex risk-benefit profiles of disease-modifying drugs (DMDs) when making treatment decisions. For effective shared decision-making, MS patients should understand the risks and benefits of DMDs and make treatment decisions based on personal preferences. METHODS: This is an inclusive systematic review to primarily assess current understanding of MS patients for information about DMDs provided during the standard healthcare system...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28318817/clinical-and-mutational-characteristics-of-duchenne-muscular-dystrophy-patients-based-on-a-comprehensive-database-in-south-china
#13
Dan-Ni Wang, Zhi-Qiang Wang, Lei Yan, Jin He, Min-Ting Lin, Wan-Jin Chen, Ning Wang
The development of clinical trials for Duchenne muscular dystrophy (DMD) in China faces many challenges due to limited information about epidemiological data, natural history and clinical management. To provide these detailed data, we developed a comprehensive database based on registered DMD patients from South China and analysed their clinical and mutational characteristics. The database included DMD registrants confirmed by clinical presentation, family history, genetic detection, prognostic outcome, and/or muscle biopsy...
February 21, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28318337/the-association-of-timing-of-disease-modifying-drug-initiation-and-relapse-in-patients-with-multiple-sclerosis-using-electronic-health-records
#14
Frank A Corvino, David Oliveri, Amy L Phillips
OBJECTIVE: A large, US de-identified electronic health record (EHR) database (Optum-Humedica de-identified Electronic Health Record dataset) was used to evaluate whether earlier disease-modifying drug (DMD) treatment initiation was associated with improved outcomes in MS. METHODS: Newly diagnosed patients from 1/1/2008-8/30/2014 (International Classification of Diseases, Ninth Revision, Clinical Modification code: 340.xx; first MS diagnosis = index date) with healthcare activity 1 year pre- and 2-years post-index, and who initiated DMD treatment during the 2-year follow-up period, were included...
March 20, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28316128/skewed-x-chromosome-inactivation-plays-a-crucial-role-in-the-onset-of-symptoms-in-carriers-of-becker-muscular-dystrophy
#15
Emanuela Viggiano, Esther Picillo, Manuela Ergoli, Alessandra Cirillo, Stefania Del Gaudio, Luisa Politano
BACKGROUND: Becker muscular dystrophy (BMD) is an X-linked recessive disorder affecting about 1:18,000 male births. Female carriers are usually asymptomatic, but 2.5-18% may present muscle or heart symptoms. In the present work the role of the X chromosome inactivation (XCI) on the onset of symptoms in BMD carriers was analysed and compared with the pattern observed in Duchenne muscular dystrophy (DMD) carriers. METHODS: XCI was determined on the lymphocytes of 36 BMD carriers - both symptomatic and not symptomatic - from 11 families requiring genetic advice at the Cardiomyology and Medical Genetics of the Second University of Naples, through the AR methylation-based assay...
March 18, 2017: Journal of Gene Medicine
https://www.readbyqxmd.com/read/28315675/low-intensity-training-and-the-c5a-complement-antagonist-nox-d21-rescue-the-mdx-phenotype-through-modulation-of-inflammation
#16
Janek Hyzewicz, Jun Tanihata, Mutsuki Kuraoka, Yuko Nitahara-Kasahara, Teiva Beylier, Urs T Ruegg, Axel Vater, Shin'ichi Takeda
Inflammatory events occurring in dystrophic muscles contribute to the progression of Duchenne muscular dystrophy (DMD). Low-intensity training (LIT) attenuates the phenotype of mdx mice, an animal model for DMD. Therefore, we postulated that LIT could have anti-inflammatory properties. We assessed levels of inflammatory cytokines and infiltrated immune cells in gastrocnemius muscle of mdx mice after LIT. We detected high levels of complement component C5a, chemokine ligand (CCL) 2, CD68(+) monocytes/macrophages, and proinflammatory M1 macrophages in muscles of mdx mice...
March 15, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28304371/a-scalable-diffraction-based-scanning-3d-colour-video-display-as-demonstrated-by-using-tiled-gratings-and-a-vertical-diffuser
#17
Jia Jia, Jhensi Chen, Jun Yao, Daping Chu
A high quality 3D display requires a high amount of optical information throughput, which needs an appropriate mechanism to distribute information in space uniformly and efficiently. This study proposes a front-viewing system which is capable of managing the required amount of information efficiently from a high bandwidth source and projecting 3D images with a decent size and a large viewing angle at video rate in full colour. It employs variable gratings to support a high bandwidth distribution. This concept is scalable and the system can be made compact in size...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28303972/lentiviral-vectors-can-be-used-for-full-length-dystrophin-gene-therapy
#18
John R Counsell, Zeinab Asgarian, Jinhong Meng, Veronica Ferrer, Conrad A Vink, Steven J Howe, Simon N Waddington, Adrian J Thrasher, Francesco Muntoni, Jennifer E Morgan, Olivier Danos
Duchenne Muscular Dystrophy (DMD) is caused by a lack of dystrophin expression in patient muscle fibres. Current DMD gene therapy strategies rely on the expression of internally deleted forms of dystrophin, missing important functional domains. Viral gene transfer of full-length dystrophin could restore wild-type functionality, although this approach is restricted by the limited capacity of recombinant viral vectors. Lentiviral vectors can package larger transgenes than adeno-associated viruses, yet lentiviral vectors remain largely unexplored for full-length dystrophin delivery...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28302391/non-uniform-muscle-fat-replacement-along-the-proximodistal-axis-in-duchenne-muscular-dystrophy
#19
M T Hooijmans, E H Niks, J Burakiewicz, C Anastasopoulos, S I van den Berg, E van Zwet, A G Webb, J J G M Verschuuren, H E Kan
The progressive replacement of muscle tissue by fat in Duchenne muscular dystrophy (DMD) has been studied using quantitative MRI between, but not within, individual muscles. We studied fat replacement along the proximodistal muscle axis using the Dixon technique on a 3T MR scanner in 22 DMD patients and 12 healthy controls. Mean fat fractions per muscle per slice for seven lower and upper leg muscles were compared between and within groups assuming a parabolic distribution. Average fat fraction for a small central slice stack and a large coverage slice stack were compared to the value when the stack was shifted one slice (15 mm) up or down...
February 21, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28294390/combined-xil-6r-and-urocortin-2-treatment-restores-mdx-diaphragm-muscle-force
#20
Jennifer Manning, Maria M Buckley, Ken D O'Halloran, Dervla O'Malley
Introduction Duchenne muscular dystrophy (DMD) is characterized by progressive muscle degeneration leading to immobility, respiratory failure and premature death. As chronic inflammation and stress are implicated in DMD pathology, the efficacy of an anti-inflammatory and anti-stress intervention strategy in ameliorating diaphragm dysfunction was investigated. Methods Diaphragm muscle contractile function was compared in wild-type and dystrophin-deficient mdx mice treated with saline, anti-IL-6R antibodies (xIL-6R), the corticotrophin-releasing factor receptor 2 (CRFR2) agonist, urocortin 2 or both xIL-6R and urocortin 2...
March 13, 2017: Muscle & Nerve
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