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Tyrosol and its metabolites as antioxidative and anti-inflammatory molecules in human endothelial cells

AutorMuriana, Francisco J. G. ; Montserrat-de la Paz, Sergio ; Lucas, Ricardo ; Bermúdez, Beatriz ; Jaramillo Carmona, S. ; Morales, Juan C.; Abia, Rocío ; López, Sergio
Fecha de publicaciónjul-2017
EditorRoyal Society of Chemistry (Great Britain)
CitaciónFood and Function 8: 2905-2914 (2017)
ResumenTyrosol (Tyr) is a phenolic compound found in virgin olive oil. After ingestion, Tyr undergoes extensive first pass intestinal/hepatic metabolism. However, knowledge about the biological effects of Tyr metabolites is scarce. We chemically synthesized Tyr glucuronate (Tyr-GLU) and sulphate (Tyr-SUL) metabolites and explored their properties against oxidative stress and inflammation in TNF-α-treated human umbilical vein endothelial cells (hECs). Tyr and Tyr-SUL prevented the rise of reactive oxygen species, the depletion of glutathione, and the down-regulation of glutathione peroxidase 1, glutamate-cysteine ligase catalytic subunit, and heme oxygenase-1 genes. Tyr-SUL and to a lower extent Tyr and Tyr-GLU prevented the phosphorylation of NF-κB signaling proteins. Tyr-GLU and Tyr-SUL also prevented the over-expression of adhesion molecules at gene, protein, and secretory levels, and the adhesion (Tyr-SUL > Tyr-GLU) of human monocytes to hECs. In vivo, Tyr, and most notably Tyr-SUL in a dose-dependent manner, ameliorated plantar and ear edemas in mice models of acute and chronic inflammation. This study demonstrates the antioxidant and/or anti-inflammatory properties of Tyr metabolites, with Tyr-SUL being the most effective.
Descripción22 Páginas; 6 Figuras
Versión del editorhttp://dx.doi.org/10.1039/C7FO00641A
URIhttp://hdl.handle.net/10261/157571
DOI10.1039/C7FO00641A
ISSN2042-6496
E-ISSN2042-650X
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