Myology research highlights

RSS feed

The use of home mechanical ventilation has increased over the last two decades

In order to assess the use of home mechanical ventilation, invasive or non-invasive, between 2000 and 2023, French and Belgian authors carried out a review of the literature: 32 studies with a total of 8815 children undergoing home ventilation were included; 37% of the children had a neuromuscular disease; over the past 24 years, the … [Read more]

Language development is better in children with SMA treated at presymptomatic stage

Italian clinicians studied language skills in 36 children with type I spinal muscular atrophy (SMA), whether symptomatic (24/36) or not (12/36), and who had benefited from an innovative therapy: the 12 pre-symptomatic children were diagnosed as part of newborn screening, the 36 children had their communication skills, including language, assessed once or twice over time, … [Read more]

Transcranial direct current stimulation tested in myositis

A Brazilian single-center, randomized crossover clinical trial evaluated: in 17 adults with autoimmune necrotizing myopathy or dermatomyositis in remission or minimal activity, chronic algic and asthenic ; the combined effects over 10 days of a daily 30-minute session of physical activity (treadmill walking) and real (2 mA for 20 minutes) or mimed (30 seconds only) … [Read more]

Sleep disordered breathing in slowly progressive myopathies: beyond alveolar hypoventilation

A French retrospective study of the records of 149 adults with an average age of 46.5 years and suffering from myotonic dystrophy (45) , myasthenia (20), Pompe disease (9), spinal muscular atrophy (8), facioscapulohumeral myopathy (8), Duchenne myopathy (5), Becker myopathy (1) or another neuromuscular disease (53) explored by respiratory polygraphy, nocturnal transcutaneous capnography and … [Read more]

Microdystrophin-based gene therapies do not prevent utrophin expression in muscle fibers

American researchers have investigated whether the supply of microdystrophin via AAV viruses could modify the physiological overexpression of utrophin observed in Duchenne muscular dystrophy: the double-knockout mouse for utrophin and dystrophin (dKO) served as an experimental model, and received a transgene encoding utrophin, in addition, two distinct types of micro-dystrophin (mDysH3 and mDys5) were injected … [Read more]

Guidelines for the administration of microdystrophin gene therapy

American and European clinicians involved in innovative therapies for Duchenne muscular dystrophy (DMD) have published guidelines for the use of delandistrogene moxeparvovec, a gene therapy product: these recommendations are the result of experience acquired during the clinical development of this innovative molecule, which includes an AAV vector of the rh74 type and was developed by … [Read more]

Bumetanide is not effective against focal paralysis attacks in hypokalemic periodic paralysis

A focal attack of paralysis induced by isometric exercise of the abductor muscle of the 5th finger of the hand followed by a period of rest according to the McManis protocol was induced in nine people with hypokalemic paralysis in a crossover trial of bumetanide versus placebo. The amplitudes of the global muscle action potential … [Read more]

A biallelic SOX8 variant causes a new syndrome combining myopathy, bone deformities, intellectual impairment and ovarian dysfunction

A Canadian team reports the case of a skinny, short 27-year-old woman with a diminished head circumference, non-progressive proximal and distal muscle weakness, moderate intellectual impairment and oligomenorrhea. She also presented with facial paralysis, significant dysphagia and severe dysphonia, as well as elbow, knee and ankle retractions and long, thin, hyperlaxed fingers. From birth, there … [Read more]

Muscle hypertonicity linked to TPM2 and TPM3 variants

A Finnish team has described a congenital myopathy linked to atypical TPM2 or TPM3 in seven patients from three families. In contrast to the phenotype of nemalin myopathy with weakness and hypotonia usually associated with TPM2 or TPM3 mutations, the patients presented with muscular hypertonia that could go as far as trismus and/or lead to … [Read more]

New results from SMART trial with Zolgensma in proximal spinal muscular atrophy

Results from the one-year SMART trial with Zolgensma, the Novartis gene therapy product, were announced by Novartis via press release and presented at the Muscular Dystrophy Association (MDA) annual meeting: the trial involved 24 children with symptomatic SMN1-related proximal spinal muscular atrophy (SMA), aged between 1.5 and 9 years, weighing between 8.5 and 21 kg, … [Read more]