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Dysregulation of calcium homeostasis in muscular dystrophies

  • Ainara Vallejo-Illarramendi (a1) (a2) (a3), Ivan Toral-Ojeda (a1) (a2), Garazi Aldanondo (a1) and Adolfo López de Munain (a1) (a2) (a4) (a5)


Muscular dystrophies are a group of diseases characterised by the primary wasting of skeletal muscle, which compromises patient mobility and in the most severe cases originate a complete paralysis and premature death. Existing evidence implicates calcium dysregulation as an underlying crucial event in the pathophysiology of several muscular dystrophies, such as dystrophinopathies, calpainopathies or myotonic dystrophy among others. Duchenne muscular dystrophy is the most frequent myopathy in childhood, and calpainopathy or LGMD2A is the most common form of limb-girdle muscular dystrophy, whereas myotonic dystrophy is the most frequent inherited muscle disease worldwide. In this review, we summarise recent advances in our understanding of calcium ion cycling through the sarcolemma, the sarcoplasmic reticulum and mitochondria, and its involvement in the pathogenesis of these dystrophies. We also discuss some of the clinical implications of recent findings regarding Ca2+ handling as well as novel approaches to treat muscular dystrophies targeting Ca2+ regulatory proteins.


Corresponding author

*Corresponding author: Ainara Vallejo-Illarramendi, Instituto Biodonostia, Po Dr Begiristain s/n, 20014 San Sebastian, Spain. E-mail:


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Disease pages in OMIM:

Dysregulation of calcium homeostasis in muscular dystrophies

  • Ainara Vallejo-Illarramendi (a1) (a2) (a3), Ivan Toral-Ojeda (a1) (a2), Garazi Aldanondo (a1) and Adolfo López de Munain (a1) (a2) (a4) (a5)


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