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A single injection of a promising double gene therapy in a OPMD mouse model

Oculopharyngeal muscular dystrophy (or OPMD) is a relatively rare type of muscular dystrophy that tends to affect and older population. This condition is transmitted in an autosomal dominant manner, and results in the gradual development, from 50 years of age, of the bilateral drooping of the eyelids and difficulty swallowing, and also the appearance of … [Read more]

A good record for the longest follow-up to date of Zolgensma in SMA

After obtaining positive results on the motor development of 15 infants with type I SMA, aged less than 6 months and symptomatic during the first gene therapy trial lasting two years (START study), Zolgensma (onasemnogene abeparvovec) will be evaluated over the next 15 years (START long-term follow-up study).  The results published after five years of … [Read more]

DMD : a robust production of dystrophin, 3 months after administration of SRP-9001 in 11 patients (phase I clinical trial)

SRP-9001 (rAAVrh74.MHCK7.micro-dystrophin) developed in Duchenne muscular dystrophy (DMD) by Sarepta Therapeutics is a gene therapy product combining a micro-dystrophin gene and an adeno-associated virus  (AAV). Sarepta announced in a press release dated May 18, 2021, the first results of the US ENDEAVOR trial of SRP-9001 in its commercial form in 20 participants, boys with DMD … [Read more]

SMA: results of a large-scale survey of newborn screening around the world

The question of neonatal screening for SMA does rise more and more since the marketing of three disease-modifying therapies, Spinraza®, Zolgensma® and Evrysdi®, which efficacy is optimal if they are initiated as early as possible, pre-symptomatically. But where is newborn screening for SMA in the world today?   The results of a large survey of … [Read more]

FSHD: a new european network for clinical trials

On the initiative of FSHD Europe association, in which the AFM-Telethon is involved, a European network of clinical trials in FSH has just been created with the aim of connecting European clinicians involved in FSH and to facilitate the setting up of future clinical trials, to make future treatments more accessible, etc. This network is … [Read more]

Treating cardiomyopathy earlier with angiotensin converting enzyme inhibitors preserves heart function in BMD

Becker muscular dystrophy (BMD) is the result of a partial dystrophin deficiency. Approximately 40% of adults with BMD present dilated cardiomyopathy, including 15% of under 20-year-olds and 55% of over 40-year-olds. International cardiological guidelines recommend the prescription of angiotensin converting enzyme (ACE) inhibitors when the left ventricular ejection fraction (LVEF) drops below 40%. A retrospective … [Read more]

Reprogrammed pluripotent stem cells: formidable tools to test innovative neuromuscular disease therapies

In the field of innovative therapies for neuromuscular diseases, having access to a model, whether cell or animal, for a given disease is a major benefit. These models make it possible to test several therapeutic hypotheses on a large scale, and are usually a prerequisite to starting human trials. Since animal models are rare in … [Read more]

Type II and III SMA: positive effects of nusinersen, greater impact on motor function than on respiratory function

Of the many forms of spinal muscular atrophy (SMA), the form causing predominately proximal muscle deficit and associated with a lack of the SMN protein is by far the most common form in children. This condition is diagnosed by identifying a homozygous deletion in the SMN1 gene, found in 98% of cases. The prognosis can, … [Read more]

Motor neurons and myotubes interact via secreted endogenous neuronal and muscle growth factors

Neuromuscular junction (NMJ) research is essential to advance the understanding of neuromuscular pathophysiology and the development of new therapies for diseases associated with NMJ dysfunction. In vivo, the microenvironment of NMJ has a significant impact on the formation and maturation of NMJ via neurotrophic factors and differentiation factors that are secreted as a result of … [Read more]

A heterozygous variant of the calpain 3 gene causing camptocorm syndrome

Calpainopathies are a subgroup of limb girdle muscular dystrophies whose symptoms usually appear in early adolescence. In the vast majority of cases, this neuromuscular disease, which affects several hundred people in France, many of them in La Reunion, is transmitted on an autosomal recessive mode. Autosomal dominant forms have been reported in recent years, in … [Read more]