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Norwegian study clarifies clinical profile of chronic forms of juvenile dermatomyositis

Chronic forms of juvenile dermatomyositis (JDM) represent a therapeutic challenge. Norwegian clinicians studied a cohort of 59 patients with JDM which they compared to a control group of healthy subjects:  absorption studies (DEXA-scan) showed in the JDM group a decrease in muscle mass in the lower limbs, even at a constant body mass index;  this … [Read more]

Muscle damage in women transmitting DMD / DMB more common than expected

• A cross-sectional study of 53 women with pathological abnormalities of the DMD gene, leading to either DMD (33/53) or BMD (20/53) showed:  signs of muscle damage for 81% of them, with decrease in muscle strength (40% of cases) and / or fatty infiltration visible on muscle MRI (72%);  this impairment is symptomatic in 57% … [Read more]

Next-generation sequencing of mummified remains of 14th century Italian nobleman detects first known case of Pompe disease

Science can sometimes solve historical puzzles, such as the one surrounding the death of Alberto Canfrancesco della Scala, Lord of Verona and protector of Dante. He died in 1329 at the age of 38, a few days after his victorious entry into Treviso. The few writings available report nausea and diarrhea in the hours before … [Read more]

A meta-analysis highlights the superiority of deflazacort in DMD

Glucocorticoids are the standard treatment for Duchenne muscular dystrophy (DMD). There is no consensus on the type of steroid and the method of administration (doses, frequency). North American researchers analyzed data from the placebo arms of two clinical trials testing the effectiveness of ataluren in patients with a stop mutation in the DMD gene, who … [Read more]

Nusinersen in real life in the United States: a study highlights the difficulties of compliance

Nusinersen is an antisense oligonucleotide that has been used in the treatment of SMA since 2016. Its method of administration (intrathecal) and the need for repeated injections may be a barrier for some patients.  Researchers studied health data from American patients with SMA, 23 type I, 48 type II and 260 type III, who received … [Read more]

Mechanisms and future treatments for myasthenia gravis debated at International Society of Neuroimmunology (ISNI) congress

Supported by AFM-Telethon, the 15th edition of the International Society of Neuro-immunology congress was held online from November 8 to 12, 2021. It was co-chaired by Prof. Sonia Berrih-Aknin, from the Institute of Myology. During a session dedicated to myasthenia gravis, in its communication, the Rozen Le Panse team:  reminded that this complex disease of … [Read more]

Early muscle damage in Glycogenosis type IIIa

Glycogenosis type IIIa is a deficiency in a debranching enzyme. It initially results in hepatic disorders but can classically lead to muscle disorders and increased fatigue from the third decade of life.  A muscle imaging study, supplemented by a serie of functional tests, was carried out in the United States in 17 sick children and … [Read more]

Autoimmune neurological complications after Covid-19 vaccination remain exceptional

German specialists have identified 21 autoimmune neurological complications in their respective canton that occurred between March 1 and June 1, 2021 after Covid-19 vaccination in the 232,603 inhabitants vaccinated. They counted:  sinus cerebral thrombophlebitis (3);  demyelinating diseases of the central nervous system (8); dysimmune neuropathies (4); myositis (3); myasthenia gravis; large cell cerebral arteritis; limbic … [Read more]

Continuous non-invasive ventilation may be an alternative to tracheostomy ventilation

A significant number of neuromuscular patients with severe respiratory impairment are ventilated invasively, most often by means of a tracheostomy. An international study compiled data from 19 centers offering an alternative ventilation mode based on the continuous use of non-invasive ventilation coupled with insufflation-exsufflation maneuvers:  the data, directly collected from the centers or through their … [Read more]

Italian observation confirms the involvement of the p.S85C variant in distal myopathy linked to the MATR3 gene

Distal myopathy with vocal cord palsy (or VCPDM) has only been described in twelve families around the world, including one in France. VCPDM belongs to the group of multisystem proteinopathies. Italian clinicians report the observation of a 40-year-old woman fulfilling the diagnostic criteria for this ultra-rare disease:  the clinical picture shows steppage and rhinolalia, without … [Read more]