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Title

Cocoa flavanols protect human endothelial cells from oxidative stress

AuthorsFerreira Martins, Tatiane; Palomino, Olga; Álvarez-Cilleros, David; Martín, M. Ángeles ; Ramos, Sonia ; Goya, Luis
Issue Date2020
PublisherSpringer Nature
CitationPlant Foods for Human Nutrition 75: 161–168 (2020)
AbstractOxidative stress may cause functional disorders of vascular endothelia which can lead to endothelial apoptosis and thus alter the function and structure of the vascular tissues. Plant antioxidants protect the endothelium against oxidative stress and then become an effective option to treat vascular diseases. Cocoa flavanols have been proven to protect against oxidative stress in cell culture and animal models. In addition, epidemiological and interventional studies strongly suggest that cocoa consumption has numerous beneficial effects on cardiovascular health. The objective of this study was to test the chemo-protective effect of realistic concentrations of a cocoa phenolic extract and its main monomeric flavanol epicatechin on cultured human endothelial cells submitted to an oxidative challenge. Both products efficiently restrained stress-induced reactive oxygen species and biomarkers of oxidative stress such as carbonyl groups and malondialdehyde, and recovered depleted glutathione, antioxidant defences and cell viability. Our results demonstrate for the first time that a polyphenolic extract from cocoa and its main flavonoid protect human endothelial cells against an oxidative insult by modulating oxygen radical generation and antioxidant enzyme and non-enzyme defences.
Publisher version (URL)https://doi.org/10.1007/s11130-020-00807-1
URIhttp://hdl.handle.net/10261/219344
DOIhttp://dx.doi.org/10.1007/s11130-020-00807-1
ISSN0921-9668
E-ISSN1573-9104
Appears in Collections:(ICTAN) Artículos
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