Açaí (Euterpe oleracea Mart.) modulates oxidative stress resistance in Caenorhabditis elegans by direct and indirect mechanisms.

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorBonomo, Larissa de Freitas-
Autor(es): dc.creatorSilva, David Nunes-
Autor(es): dc.creatorBoasquivis, Patrícia Ferreira-
Autor(es): dc.creatorPaiva, Franciny Aparecida-
Autor(es): dc.creatorGuerra, Joyce Ferreira da Costa-
Autor(es): dc.creatorMartins, Talita Alves Faria-
Autor(es): dc.creatorTorres, Álvaro Gustavo de Jesus-
Autor(es): dc.creatorPaula, Igor Thadeu Borges Raposo de-
Autor(es): dc.creatorCaneschi, Washington Luiz-
Autor(es): dc.creatorJacolot, Philippe-
Autor(es): dc.creatorGrossin, Nicolas-
Autor(es): dc.creatorTessier, Frederic J.-
Autor(es): dc.creatorBoulanger, Eric-
Autor(es): dc.creatorSilva, Marcelo Eustáquio-
Autor(es): dc.creatorPedrosa, Maria Lúcia-
Autor(es): dc.creatorOliveira, Riva de Paula-
Data de aceite: dc.date.accessioned2019-11-06T13:33:11Z-
Data de disponibilização: dc.date.available2019-11-06T13:33:11Z-
Data de envio: dc.date.issued2015-03-31-
Data de envio: dc.date.issued2015-03-31-
Data de envio: dc.date.issued2014-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/4834-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/557910-
Descrição: dc.descriptionAçaí (Euterpe oleracea Mart.) has recently emerged as a promising source of natural antioxidants. Despite its claimed pharmacological and nutraceutical value, studies regarding the effects of açaí in vivo are limited. In this study, we use the Caenorhabditis elegans model to evaluate the in vivo antioxidant properties of açaí on an organismal level and to examine its mechanism of action. Supplementation with ac¸aı´ aqueous extract (AAE) increased both oxidative and osmotic stress resistance independently of any effect on reproduction and development. AAE suppressed bacterial growth, but this antimicrobial property did not influence stress resistance. AAE-increased stress resistance was correlated with reduced ROS production, the prevention of sulfhydryl (SH) level reduction and gcs-1 activation under oxidative stress conditions. Our mechanistic studies indicated that AAE promotes oxidative stress resistance by acting through DAF-16 and the osmotic stress response pathway OSR-1/UNC-43/SEK-1. Finally, AAE increased polyglutamine protein aggregation and decreased proteasome activity. Our findings suggest that natural compounds available in AAE can improve the antioxidant status of a whole organism under certain conditions by direct and indirect mechanisms.-
Idioma: dc.languageen-
Direitos: dc.rightsNenhuma autorização é necessária para depósito dos artigos publicados pelos Periódicos PloS em repositório. Fonte: Plos <http://www.plos.org/open-access/> Acesso em: 14 nov. 2014.-
Título: dc.titleAçaí (Euterpe oleracea Mart.) modulates oxidative stress resistance in Caenorhabditis elegans by direct and indirect mechanisms.-
Aparece nas coleções:Repositório Institucional - UFOP

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