Blog Archives

MRI:a reliable biomarker and outcome measure of FSHD disease progression?

  Facioscapulohumeral muscular dystrophy (FSHD) is one of the most common hereditary muscular disorders. Currently FSHD has no known effective treatment and detailed data on the natural history are lacking. Determination of the efficacy of a given therapeutic approach might be difficult in FSHD given the slow and highly variable disease progression. Magnetic resonance imaging … [Read more]

Mutations in GFPT1-related congenital myasthenic syndromes are associated with synaptic morphological defects and underlie a tubular aggregate myopathy with synaptopathy

Mutations in GFPT1 (glutamine-fructose-6-phosphate transaminase 1), a gene encoding an enzyme involved in glycosylation of ubiquitous proteins, cause a limb-girdle congenital myasthenic syndrome (LG-CMS) with tubular aggregates (TAs) characterized predominantly by affection of the proximal skeletal muscles and presence of highly organized and remodeled sarcoplasmic tubules in patients’ muscle biopsies. The authors report here the … [Read more]

Effect of enzyme replacement therapy with alglucosidase alfa (Myozyme®) in 12 patients with advanced late-onset Pompe disease

The efficacy of enzyme replacement therapy (ERT) in patients at an advanced stage of Pompe disease has only been addressed in a few studies. The aim of this study was to assess the long term effects of ERT in a cohort of patients with severe Pompe disease. The authors identified patients from the French Pompe … [Read more]

Association Between Mutation Size and Cardiac Involvement in Myotonic Dystrophy Type 1: An Analysis of the DM1-Heart Registry

In myotonic dystrophy type 1, the association between mutation size (CTG expansion) and the severity of cardiac involvement is controversial. A group of french experts supported by AFM-Telethon, involving researchers and clinicians from the Institute, selected 855 patients with myotonic dystrophy type 1 (women, 51%; median age, 37 years), with genetic testing performed at the … [Read more]

Antisense oligonucleotides sequence optimization is important for exon skipping

  In 2016, the US Food and Drug Administration (FDA) conditionally approved the first phosphorodiamidate morpholino oligomer (morpholino)-based antisense oligonucleotides (AOs) drug, eteplirsen, developed for DMD exon 51 skipping. Eteplirsen remains controversial with insufficient evidence of its therapeutic effect in patients. Here, the authors designed morpholino AOs targeting DMD exon 51 using their recently developed … [Read more]

A look back at the 22nd International Annual Congress of the WMS

The 22nd edition of the International Congress of the World Muscle Society was held from October 3rd to 7th, 2017 in Saint-Malo. For the first time ever, the World Muscle Society International Annual Congress (WMS), the annual reference congress on neuromuscular diseases, was held in France, in Saint Malo, from October 3rd to 7th,  2017. … [Read more]

Institute seminar – October 16th – Dr. Richard Jaspers (Pays-Bas)

Physico-chemical cues governing muscle (stem) cell size and metabolism Monday October, 16th 2017 – 12:00 – 13:00
 Dr. Richard Jaspers (Laboratory for Myology, Faculty of Behavioral and Movement Sciences, Department of Human Movement Sciences, Amsterdam Movement Sciences, Vrije Universiteit Amsterdam) Host: Fabien Le Grand Institute of Myology auditorium Hôpital de la Pitié-Salpêtrière Building Babinski Entrance … [Read more]

Idebenone slows the loss of pulmonary function in DMD patients

  In the Phase 3 DELOS trial in patients with DMD, idebenone reduced the loss of peak expiratory flow and FVC compared to placebo. Here, post-hoc analyses were conducted to assess whether treatment with idebenone could reduce the risk of patients dropping below clinically meaningful thresholds of FVC% p. The change over 1 year in … [Read more]

Biomarkers predict outcome in Charcot- Marie-Tooth disease 1A

  Charcot-Marie-Tooth disease type 1A (CMT1A) is the most common inherited neuropathy, a debilitating disease without known cure. Among patients with CMT1A, disease manifestation, progression and severity are strikingly variable, which poses major challenges for the development of new therapies. Hence, there is a strong need for sensitive outcome measures such as disease and progression … [Read more]

Institute seminar – October 9th – Véronique Bolduc (USA)

RNA as a therapeutic target for the collagen VI-related dystrophies Monday October, 9th 2017 – 12:00 – 13:00 
Véronique Bolduc (Post-doctoral Fellow, Neurogenetics branch, NINDS, National Institutes of Health, Bethesda, USA) Host: Valérie Allamand Institute of Myology auditorium Hôpital de la Pitié-Salpêtrière Building Babinski Entrance 82 bd Vincent Auriol metro Chevaleret