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Simvastatin does not alleviate muscle pathology in a mouse model of Duchenne muscular dystrophy

Object's details: Simvastatin does not alleviate muscle pathology in a mouse model of Duchenne muscular dystrophy

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Provider:Repozytorium Instytutu Biochemii i Biofizyki Polskiej Akademii Nauk

Description

Title:
Simvastatin does not alleviate muscle pathology in a mouse model of Duchenne muscular dystrophy
Creator:
Mucha, Olga;
Podkalicka, Paulina;
Kaziród, Katarzyna;
Samborowska, Emilia;
Dulak, Józef;
Łoboda, Agnieszka
Description:
Background: Duchenne muscular dystrophy (DMD) is an incurable disease, caused by the mutations in the DMD gene, encoding dystrophin, an actin-binding cytoskeletal protein. Lack of functional dystrophin results in muscle weakness, degeneration, and as an outcome cardiac and respiratory failure. As there is still no cure for affected individuals, the pharmacological compounds with the potential to treat or at least attenuate the symptoms of the disease are under constant evaluation. The pleiotropic agents, 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors, known as statins, have been suggested to exert beneficial effects in the mouse model of DMD. On the other hand, they were also reported to induce skeletal-muscle myopathy. Therefore, we decided to verify the hypothesis that simvastatin may be considered a potential therapeutic agent in DMD. Methods: Several methods including functional assessment of muscle function via grip strength measurement, treadmill test, and single-muscle force estimation, enzymatic assays, histological analysis of muscle damage, gene expression evaluation, and immunofluorescence staining were conducted to study simvastatin-related alterations in the mdx mouse model of DMD. Results: In our study, simvastatin treatment of mdx mice did not result in improved running performance, grip strength, or specific force of the single muscle. Creatine kinase and lactate dehydrogenase activity, markers of muscle injury, were also unaffected by simvastatin delivery in mdx mice. Furthermore, no significant changes in inflammation, fibrosis, and angiogenesis were noted. Despite the decreased percentage of centrally nucleated myofibers in gastrocnemius muscle after simvastatin delivery, no changes were noticed in other regeneration-related parameters. Of note, even an increased rate of necrosis was found in simvastatin-treated mdx mice. Conclusion: In conclusion, our study revealed that simvastatin does not ameliorate DMD pathology.
Object availability:
free access
Date:
2021
Type:
Article;
PeerReviewed
Language:
English
Format:
application/pdf
Publisher:
BMC
Relation: http://eprints.ibb.waw.pl/2091 ;http://doi.org/10.1186/s13395-021-00276-3 ;doi:10.1186/s13395-021-00276-3
Subject:
R Medicine (General)
Identifier: http://eprints.ibb.waw.pl/2091/1/s13395-021-00276-3.pdf ;
Mucha, Olga and Podkalicka, Paulina and Kaziród, Katarzyna and Samborowska, Emilia and Dulak, Józef and Łoboda, Agnieszka (2021) Simvastatin does not alleviate muscle pathology in a mouse model of Duchenne muscular dystrophy. Skeletal Muscle, 11 (1). p. 21. ISSN 2044-5040
Data provider:
Repozytorium Instytutu Biochemii i Biofizyki Polskiej Akademii Nauk

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