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Advances in muscle imaging for Emery-Dreifuss muscular dystrophy
Orphanet Journal of Rare Diseases volume 10, Article number: O26 (2015)
Laminopathies are a heterogeneous group of disorders related to alterations on genes coding for proteins of the nuclear envelope. Among these clinical entities, there are several diseases affecting mainly the cardiac and skeletal muscles. These disorders include forms with a selective cardiac compromise and muscular dystrophies (autosomal and X-linked forms of Emery-Dreifuss muscular dystrophy, Limb girdle muscular dystrophy 1B, LMNA-related congenital muscular dystrophy and other rare clinical entities). We performed imaging studies on a large cohort of subjects bearing either LMNA or EMD gene mutations; each patient enrolled displayed variable compromise on posterior legs’ muscles, ranging from mild compromise on soleus and medial head of gastrocnemius to overt alterations on soleus, medial head of gastrocnemius[1, 3]. Of note, we saw that even subjects presenting with clinically selective cardiac compromise displayed, on imaging studies, variable alterations on skeletal muscles. This findings showed a continuum in skeletal muscles compromise among different phenotypes related to LMNA or EMD gene mutations and lead to hypothesize a common mechanism in the process of damage of skeletal muscles fibers.
Carboni N, Mura M, Mercuri E, Marrosu G, Manzi RC, Cocco E, et al: Cardiac and muscle imaging findings in a family with X-linked Emery-Dreifuss muscular dystrophy. Neuromuscul Disord. 2012, 22 (2): 152-8.
Carboni N, Mura M, Marrosu G, Cocco E, Marini S, Solla E, et al: Muscle imaging analogies in a cohort of patients with different clinical phenotypes caused by LMNA gene mutations. Muscle Nerve. 2010, 41 (4): 458-63.
Carboni N, Mura M, Marrosu G, Cocco E, Ahmad M, Solla E, et al: Muscle MRI findings in patients with an apparently exclusive cardiac phenotype due to a novel LMNA gene mutation. Neuromuscul Disord. 2008, 18 (4): 291-8.
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Carboni, N. Advances in muscle imaging for Emery-Dreifuss muscular dystrophy. Orphanet J Rare Dis 10 (Suppl 2), O26 (2015). https://doi.org/10.1186/1750-1172-10-S2-O26
- Skeletal Muscle
- Muscular Dystrophy
- Nuclear Envelope
- Clinical Entity
- Skeletal Muscle Fiber