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Development of hydroxybenzoic-based platforms as a solution to deliver dietary antioxidants to mitochondria.

Abstract：

:Oxidative stress and mitochondrial dysfunction have been associated with metabolic and age-related diseases. Thus, the prevention of mitochondrial oxidative damage is nowadays a recognized pharmacological strategy to delay disease progression. Epidemiological studies suggested an association between the consumption of polyphenol-rich diet and the prevention of different pathologies, including diseases with a mitochondrial etiology. The development of mitochondrial-targeted antioxidants based on dietary antioxidants may decrease mitochondrial oxidative damage. Herein, we report the design and synthesis of two new mitochondriotropic antioxidants based on hydroxybenzoic acids (AntiOxBENs). The results obtained showed that the novel antioxidants are accumulated inside rat liver mitochondria driven by the organelle transmembrane electric potential and prevented lipid peroxidation, exhibiting low toxicity. Some of the observed effects on mitochondrial bioenergetics resulted from an increase of proton leakage through the mitochondrial inner membrane. The new derivatives present a higher lipophilicity than the parent compounds (protocatechuic and gallic acids) and similar antioxidant and iron chelating properties. AntiOxBENs are valid mitochondriotropic antioxidant prototypes, which can be optimized and used in a next future as drug candidates to prevent or slow mitochondrial oxidative stress associated to several pathologies.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Teixeira J,Oliveira C,Amorim R,Cagide F,Garrido J,Ribeiro JA,Pereira CM,Silva AF,Andrade PB,Oliveira PJ,Borges F

doi

10.1038/s41598-017-07272-y

subject

Has Abstract

pub_date

2017-07-28 00:00:00

pages

6842

issue

1

issn

2045-2322

pii

10.1038/s41598-017-07272-y

journal_volume

7

pub_type

杂志文章

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