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Erschienen in: Cardiovascular Toxicology 1/2011

01.03.2011

Grape Seed Extract Alleviates High-Fat Diet-Induced Obesity and Heart Dysfunction by Preventing Cardiac Siderosis

verfasst von: Kamel Charradi, Hichem Sebai, Salem Elkahoui, Fethy Ben Hassine, Ferid Limam, Ezzedine Aouani

Erschienen in: Cardiovascular Toxicology | Ausgabe 1/2011

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Abstract

Obesity is a tremendous public health problem, characterized by ectopic accumulation of fat into non-adipose tissues, leading to oxidative stress and chronic inflammation, in which the heart is the most severely affected organ. We used an experimental model of high-fat-diet (HFD)-induced obesity to analyze the link between oxidative stress and heart dysfunction. We also studied the cardioprotective effect of a grape seed and skin extract (GSE). Exposure of rats to HFD during 45 days induced heart hypertrophy, inflammation as assessed by plasma CRP elevation and contractile dysfunction as revealed after ischemia/reperfusion of Langendorff-perfused hearts. HFD also induced cardiac steatosis and lipotoxicity, which are linked to an oxidative stress status, worsened by increased siderosis and resulting in Ca2+ overload. Importantly, GSE alleviated all the deleterious effects of HFD treatment. These studies suggest that GSE is a safe anti-obesity and cardioprotective agent that should also find potential applications in other inflammatory damaging conditions as stroke.
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Metadaten
Titel
Grape Seed Extract Alleviates High-Fat Diet-Induced Obesity and Heart Dysfunction by Preventing Cardiac Siderosis
verfasst von
Kamel Charradi
Hichem Sebai
Salem Elkahoui
Fethy Ben Hassine
Ferid Limam
Ezzedine Aouani
Publikationsdatum
01.03.2011
Verlag
Humana Press Inc
Erschienen in
Cardiovascular Toxicology / Ausgabe 1/2011
Print ISSN: 1530-7905
Elektronische ISSN: 1559-0259
DOI
https://doi.org/10.1007/s12012-010-9101-z

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