Characterization of the Cardiac Structure and Function of Conscious D2.B10-Dmdmdx/J (D2-mdx) mice from 16–17 to 24–25 Weeks of Age
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Le résumé fourni par la source
Duchenne muscular dystrophy (DMD) is the most common form of muscle degenerative hereditary disease. Muscular replacement by fibrosis and calcification are the principal causes of progressive and severe musculoskeletal, respiratory, and cardiac dysfunction. To date, the D2.B10-Dmdmdx/J (D2-mdx) model is proposed as the closest to DMD, but the results are controversial. In this study, the cardiac structure and function was characterized in D2-mdx mice from 16–17 up to 24–25 weeks of age. Echocardiographic assessment in conscious mice, gross pathology, and histological and cardiac biomarker analyses were performed. At 16–17 weeks of age, D2-mdx mice presented mild left ventricular function impairment and increased pulmonary vascular resistance. Cardiac fibrosis was more extended in the right ventricle, principally on the epicardium. In 24–25-week-old D2-mdx mice, functional and structural alterations increased but with large individual variation. High-sensitivity cardiac Troponin T, but not N-terminal pro-atrial natriuretic peptide, plasma levels were increased. In conclusion, left ventricle remodeling was mild to moderate in both young and adult mice. We confirmed that right ventricle epicardial fibrosis is the most outstanding finding in D2-mdx mice. Further long-term studies are needed to evaluate whether this mouse model can also be considered a model of DMD cardiomyopathy.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Characterization of the Cardiac Structure and Function of Conscious D2.B10-Dmdmdx/J (D2-mdx) mice from 16–17 to 24–25 Weeks of Age
- Date Crossref
- 22/07/2023
- Éditeur
- MDPI AG
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Mario Negri Institute for Pharmacological Research pays non établi dans la noticeOrganisation à but non lucratif
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Istituti di Ricovero e Cura a Carattere Scientifico pays non établi dans la noticeÉtablissement de santé
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University of Milano-Bicocca pays non établi dans la noticeUniversité ou école supérieure
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Italfarmaco (Italy) pays non établi dans la noticeEntreprise
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Department of Cardiovascular Medicine pays non établi dans la noticeInstitution
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School of Medicine and Surgery pays non établi dans la noticeUniversité ou école supérieure
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New Drug Incubator Division pays non établi dans la noticeEntreprise
Mario Negri Institute for Pharmacological Research, Istituti di Ricovero e Cura a Carattere Scientifico et University of Milano-Bicocca, avec 4 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.