P.11.16 Three-dimensional gait analysis of Duchenne muscular dystrophy: A trial to evaluate the therapeutic effect of RNA/ENA chimera antisense oligonucleotide that induces dystrophin exon 45 skipping

2013 ◽  
Vol 23 (9-10) ◽  
pp. 803
Author(s):  
Y. Takeshima ◽  
M. Yagi ◽  
T. Lee ◽  
N. Kusunoki ◽  
I. Ojima ◽  
...  
2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Dominic Scaglioni ◽  
Francesco Catapano ◽  
Matthew Ellis ◽  
Silvia Torelli ◽  
Darren Chambers ◽  
...  

AbstractDuring the last decade, multiple clinical trials for Duchenne muscular dystrophy (DMD) have focused on the induction of dystrophin expression using different strategies. Many of these trials have reported a clear increase in dystrophin protein following treatment. However, the low levels of the induced dystrophin protein have raised questions on its functionality. In our present study, using an unbiased, high-throughput digital image analysis platform, we assessed markers of regeneration and levels of dystrophin associated protein via immunofluorescent analysis of whole muscle sections in 25 DMD boys who received 48-weeks treatment with exon 53 skipping morpholino antisense oligonucleotide (PMO) golodirsen. We demonstrate that the de novo dystrophin induced by exon skipping with PMO golodirsen is capable of conferring a histological benefit in treated patients with an increase in dystrophin associated proteins at the dystrophin positive regions of the sarcolemma in post-treatment biopsies. Although 48 weeks treatment with golodirsen did not result in a significant change in the levels of fetal/developmental myosins for the entire cohort, there was a significant negative correlation between the amount of dystrophin and levels of regeneration observed in different biopsy samples. Our results provide, for the first time, evidence of functionality of induced dystrophin following successful therapeutic intervention in the human.


2003 ◽  
Vol 26 (7) ◽  
pp. 1025-1027 ◽  
Author(s):  
Hitoshi Sawada ◽  
Kazumi Nagahiro ◽  
Yuhsuke Kikukawa ◽  
Susumu Ban ◽  
Reina Kakefuda ◽  
...  

2006 ◽  
Vol 59 (5) ◽  
pp. 690-694 ◽  
Author(s):  
Yasuhiro Takeshima ◽  
Mariko Yagi ◽  
Hiroko Wada ◽  
Kazuto Ishibashi ◽  
Atsushi Nishiyama ◽  
...  

2020 ◽  
Vol 11 (5) ◽  
pp. 1306-1320 ◽  
Author(s):  
Dengqiu Xu ◽  
Lei Zhao ◽  
Jingwei Jiang ◽  
Sijia Li ◽  
Zeren Sun ◽  
...  

2006 ◽  
Vol 16 (9-10) ◽  
pp. 686
Author(s):  
A. Aartsma-Rus ◽  
C.L. de Winter ◽  
W.E. Kaman ◽  
A.A.M. Janson ◽  
J.C.T. van Deutekom

2017 ◽  
Vol 57 ◽  
pp. 370-371
Author(s):  
Marije Goudriaan ◽  
Catherine Huenaerts ◽  
Nathalie Goemans ◽  
Marleen van den Hauwe ◽  
Simon-Henri Schless ◽  
...  

2021 ◽  
Author(s):  
Juliette Ropars ◽  
Laetitia Houx ◽  
Sylvain Brochard ◽  
François Rousseau ◽  
Carole Vuillerot ◽  
...  

BACKGROUND Duchenne Muscular Dystrophy (DMD), the most common neuromuscular disease in children, is a severe, progressive disease that affects skeletal muscle. Abnormal gait patterns in children with DMD result from compensatory adaptations of their locomotor system to maintain free ambulation in response to the slow, progressive muscle weakness, contractures and osteoarticular changes caused by the disease. Identification of gait abnormalities can be challenging because current understanding of how gait patterns changes progressively in children with DMD is limited. 3D gait analysis could thus increase understanding about the effects of the disease on gait, guide treatments and help to predict key milestones, such as ambulation loss. This latter event is important because it is an endpoint for clinical trials and studies of DMD disease progression. OBJECTIVE The primary aim of this study was to analyze the gait characteristics of children with Duchenne Muscular Dystrophy (DMD) during their last 2 years of free ambulation. The secondary aim was to explore the capacity of gait variables to predict the time of loss of ambulation. METHODS The gait of eighteen children with DMD and fourteen age-matched control children was recorded using a 3D optoelectronic system. Statistical parametric mapping was used to compare kinematic and kinetic variables between groups. Multivariate regression was used to identify predictors of the time of ambulation loss among spatiotemporal, kinematic and kinetic variables. RESULTS Compared with the controls, anterior pelvic tilt was increased during the whole gait cycle, hip flexion was increased during the second part of stance phase and of the entire swing, knee flexion was increased during swing, dorsiflexion was reduced during stance, and plantar flexion occurred in swing in the DMD group. Maximal ground reaction force, ankle dorsiflexion moment at initial contact, knee power absorption and generation during loading response, and maximal power generation of the hip at the end of stance were all reduced. A combination of gait variables, mostly kinetic, predicted the duration before ambulation loss to be less than three months. CONCLUSIONS The gait of children with DMD who are close to losing ambulation is characterized by specific deviations. The time of ambulation loss was accurately predicted by 3D gait variables, particularly kinetic. Combined with data from the clinical examination, 3D gait analysis provides valuable information to guide physical therapy, including targeted muscle strengthening and stretching, to help patients maintain free ambulation as long as possible.


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