Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/68943
標題: Protective effects of eugenol against oxidized LDL-induced cytotoxicity and adhesion molecule expression in endothelial cells
作者: Ou, H.C.
Chou, F.P.
Lin, T.M.
Yang, C.H.
Sheu, W.H.H.
關鍵字: endothelium
oxLDL
eugenol
adhesion molecule
apoptosis
low-density-lipoprotein
laser-scanning cytometry
kappa-b activation
cyclooxygenase-2 expression
lipid-peroxidation
apoptosis
atherosclerosis
inhibition
oxidation
antioxidant
期刊/報告no:: Food and Chemical Toxicology, Volume 44, Issue 9, Page(s) 1485-1495.
摘要: Eugenol, a natural constituent of a number of aromatic plants and their essential oil fractions, has several biological effects. However, its protective effects against endothelial injury remain unclarified. This study investigates how eugenol affects human umbilical vein endothelial cells (HUVECs) dysfunction mediated by oxidized low density lipoprotein (oxLDL). Our results showed that the suppression of endothelial NO synthase (eNOS) expression, enhancement of adhesion molecules (ICAM, VCAM, and E-selectin) expression, and adherence of monocytic THP1 cells caused by a non-cytotoxic concentration (100 mu g/ml) of oxLDL were ameliorated following a eugenol treatment (12.5-100 mu M) in HUVECs. Eugneol also inhibited the reactive oxygen species (ROS) generation, intracellular calcium accumulation, and the subsequent mitochondrial membrane potential collapse, cytochrome c release and caspase-3 activation induced by oxLDL. The cytotoxicity and apoptotic features induced by a cytotoxic concentration (200 mu g/ml) of oxLDL was also attenuated by eugenol. Our results suggest that eugenol may protect against the oxLDL-induced dysfunction in endothelial cells. (c) 2006 Elsevier Ltd. All rights reserved.
URI: http://hdl.handle.net/11455/68943
ISSN: 0278-6915
文章連結: http://dx.doi.org/10.1016/j.fct.2006.04.011
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