Atorvastatin reduces β-Adrenergic dysfunction in rats with diabetic cardiomyopathy
Publication Date
July 20, 2017
Authors
Aude Carillion, Sarah Feldman, Na Na, Matthieu Biais, et al
Volume
12
Issue
7
Pages
e0180103
DOI
https://dx.plos.org/10.1371/journal.pone.0180103
Publisher URL
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0180103
Scopus
85024885733
Mendeley
http://www.mendeley.com/research/atorvastatin-reduces-%CE%B2adrenergic-dysfunction-rats-diabetic-cardiomyopathy
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Mendeley | Further Information

{"title"=>"Atorvastatin reduces β-Adrenergic dysfunction in rats with diabetic cardiomyopathy", "type"=>"journal", "authors"=>[{"first_name"=>"Aude", "last_name"=>"Carillion"}, {"first_name"=>"Sarah", "last_name"=>"Feldman"}, {"first_name"=>"Na", "last_name"=>"Na"}, {"first_name"=>"Matthieu", "last_name"=>"Biais"}, {"first_name"=>"Wassila", "last_name"=>"Carpentier"}, {"first_name"=>"Aurélie", "last_name"=>"Birenbaum"}, {"first_name"=>"Nicolas", "last_name"=>"Cagnard"}, {"first_name"=>"Xavier", "last_name"=>"Loyer"}, {"first_name"=>"Dominique", "last_name"=>"Bonnefont-Rousselot"}, {"first_name"=>"Stéphane", "last_name"=>"Hatem"}, {"first_name"=>"Bruno", "last_name"=>"Riou"}, {"first_name"=>"Julien", "last_name"=>"Amour"}], "year"=>2017, "source"=>"PLOS ONE", "identifiers"=>{"doi"=>"10.1371/journal.pone.0180103", "sgr"=>"85024885733", "pmid"=>"28727746", "pui"=>"617398467", "issn"=>"1932-6203", "scopus"=>"2-s2.0-85024885733"}, "id"=>"7d7ae38e-2ae9-3446-bb9c-9ca4ffa9ddcb", "abstract"=>"BACKGROUND In the diabetic heart the β-adrenergic response is altered partly by down-regulation of the β1-adrenoceptor, reducing its positive inotropic effect and up-regulation of the β3-adrenoceptor, increasing its negative inotropic effect. Statins have clinical benefits on morbidity and mortality in diabetic patients which are attributed to their \"pleiotropic\" effects. The objective of our study was to investigate the role of statin treatment on β-adrenergic dysfunction in diabetic rat cardiomyocytes. METHODS β-adrenergic responses were investigated in vivo (echocardiography) and ex vivo (left ventricular papillary muscles) in healthy and streptozotocin-induced diabetic rats, who were pre-treated or not by oral atorvastatin over 15 days (50 mg.kg-1.day-1). Micro-array analysis and immunoblotting were performed in left ventricular homogenates. Data are presented as mean percentage of baseline ± SD. RESULTS Atorvastatin restored the impaired positive inotropic effect of β-adrenergic stimulation in diabetic hearts compared with healthy hearts both in vivo and ex vivo but did not suppress the diastolic dysfunction of diabetes. Atorvastatin changed the RNA expression of 9 genes in the β-adrenergic pathway and corrected the protein expression of β1-adrenoceptor and β1/β3-adrenoceptor ratio, and multidrug resistance protein 4 (MRP4). Nitric oxide synthase (NOS) inhibition abolished the beneficial effects of atorvastatin on the β-adrenoceptor response. CONCLUSIONS Atorvastatin restored the positive inotropic effect of the β-adrenoceptor stimulation in diabetic cardiomyopathy. This effect is mediated by multiple modifications in expression of proteins in the β-adrenergic signaling pathway, particularly through the NOS pathway.", "link"=>"http://www.mendeley.com/research/atorvastatin-reduces-%CE%B2adrenergic-dysfunction-rats-diabetic-cardiomyopathy", "reader_count"=>5, "reader_count_by_academic_status"=>{"Professor > Associate Professor"=>1, "Researcher"=>3, "Other"=>1}, "reader_count_by_user_role"=>{"Professor > Associate Professor"=>1, "Researcher"=>3, "Other"=>1}, "reader_count_by_subject_area"=>{"Medicine and Dentistry"=>1, "Unspecified"=>3, "Computer Science"=>1}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>1}, "Computer Science"=>{"Computer Science"=>1}, "Unspecified"=>{"Unspecified"=>3}}, "group_count"=>2}

Scopus | Further Information

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