Myology research highlights
RSS feedThe main causes of death in Steinert disease
Researchers have examined the causes of death in 1,021 patients with Steinert’s disease (or myotonic dystrophy type 1) in the United Kingdom. – The main causes of death were cardiac (rhythm and conduction disorders) and respiratory (respiratory failure, inhalation pneumonitis, etc.), which are known complications of the disease. – Although deaths from cancer appear to … [Read more]
SMA therapies do not prevent the development of scoliosis
A German team conducted a retrospective cross-sectional study of 75 patients to assess the course of neuromuscular scoliosis associated with SMA. a total of 75 patients were included in the analysis; 36.5% had type I SMA, 40.5% had type II SMA and 23% had type III SMA. all were treated with Spinraza®, Zolgensma® and Evrysdi® … [Read more]
SMA clinical trial results: what’s new?
As several clinical trials continue in SMN1-related proximal spinal muscular atrophy, new results have been shared. DEVOTE trial, testing higher doses (50/28 mg) of Spinraza than currently available (12 mg): clinical benefits of higher doses in patients already treated or treatment naïve. Motor neuron degeneration, which is reflected in the reduction of neurofilaments in plasma, … [Read more]
A more effective molecular biology tool for detecting SMA
The American team at the Broad Institute in Boston (USA) has developed the SMA Finder, a new algorithm designed to identify SMA more easily from data generated by high-throughput sequencing (NGS): raw sequencing data from gene panels, exomes and whole genomes were collected by the Broad Institute in collaboration with the Estonian Department of Genetics … [Read more]
Genotype-phenotype correlations in Pompe disease
A review of the literature revealed 115 cases of infantile (42) or late-onset (73) Pompe disease. Genetic analysis of associated GAA variants showed that : the presence of at least one splice variant was found in 96.6% of cases in late-onset forms ; in 71.4% of cases in infantile forms, there was no splice variant; … [Read more]
A meta-analysis of the efficacy and safety of vamorolone in DMD
German clinicians have compiled data from the literature in order to assess the efficacy and safety of vamorolone, a new-generation synthetic corticosteroid recently authorised in Europe and the United States to treat Duchenne muscular dystrophy (DMD): data from 210 DMD patients treated with vamorolone at a dose of 2 mg/kg/day or 6 mg/kg/day were collected … [Read more]
A new natural history of muscle-expressing laminopathies
Italian researchers studied the evolution of clinical and biological parameters in a cohort of patients diagnosed and followed for myopathy related to pathogenic variants of the LMNA gene: 26 patients took part in this study, which lasted two years. the usual follow-up parameters were used as the basis for the analysis (NSAA score, timed tests, … [Read more]
Myotubular myopathy: are cardiac compensatory mechanisms at work?
The team at the Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC) in Strasbourg has explored the non-neuromuscular effects of myotubular myopathy in the Mtm1-/y mouse model: no functional or morphological abnormalities were found in the liver; alongside the disturbances in muscle development, inflammation, cell adhesion and oxidative phosphorylation found in skeletal muscle, … [Read more]
Correlation between mutated protein domain and clinical phenotype in CMT X1
A French retrospective analysis studied genotype/phenotype correlations in 275 adults with Charcot-Marie-Tooth X1 (CMT X1) disease managed in the 13 largest neuromuscular disease reference centres. Patients were classified into three categories according to the protein domain affected by the mutation in the GJB1 gene encoding connexin 32: transmembrane domain (25 variants for 72 patients), extracellular … [Read more]
A new case of myopathy secondary to digenismus
Russian researchers have published a study of a sibling with a diagnosis of myopathy linked jointly to the SPRK3 and TTN genes: two brothers aged 6 and 10 presented with a congenital myopathy that was very early onset but not very progressive. Their whole exome genotyping revealed a pathogenic variant in the gene encoding titin … [Read more]
