Congenital myopathies – nemaline myopathies

Nemaline myopathies (NMs) are a clinically heterogenous group of non-dystrophic congenital muscle diseases caused by mutations in at least 13 genes. NMs are characterised by muscle weakness, hypotonia and respiratory insufficiency, with presence of cytoskeletal protein aggregates (rods) in skeletal muscle fibers. In the present study we investigated whether neuromuscular junctions (NMJ) are affected in ACTA1-related nemaline myopathy, which accounts for about 50% of severe cases of NMs. For this purpose, we analysed the morphology and function of NMJs in the Acta1(H40Y) knock-in mouse model of the disease.

Source: Neuromuscular Disorders - September 19, 2021 Category: Neurology Authors: C. Bogni, E. Girard, K. Poulard, G. Brochier, E. Errazuriz-Cerda, J. Cosette, C. Labasse, A. Madelaine, A. Lia Taratuto, N. Messaddeq, L. Schaeffer, N. Romero, A. Buj-Bello Source Type: research