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- W2914968324 abstract "Background and Purpose Aspirin eugenol ester (AEE) is a new drug compound synthesized by combining aspirin with eugenol. It was reported to possess anti‐thrombotic, anti‐atherosclerotic, and anti‐oxidative effects. However, its molecular mechanism against oxidative injury is unclear. This study investigated how AEE affected the oxidative injury of vascular endothelial cells in vivo and in vitro. Experimental Approach A hamster model of atherosclerosis induced by a high fat diet (HFD) and an in vitro model of oxidative stress, H 2 O 2 ‐induced apoptosis of HUVECs, were used to investigate the anti‐oxidative effects of AEE. Key Results AEE significantly reduced the stimulatory effect of HFD on malondialdehyde, the inhibitory effect of HFD on SOD activity and GSH/GSSG ratio, and the overexpression of inducible NOS (iNOS) in the aorta. In vitro, incubation of HUVECs with H 2 O 2 led their apoptosis, dysfunctions of the NO systems (including increased iNOS activity, decreased endothelial NOS activity, and increased production of NO), an imbalance in calcium homeostasis and energy metabolism with an increase in intracellular free calcium and decrease in ATP, and a down‐regulation of Nrf2. In contrast, in the HUVECs pretreated with 1 μM AEE for 24 hr, the above adverse effects induced by H 2 O 2 were significantly ameliorated. Moreover, the decrease in NO production and activity of iNOS induced by AEE was significantly attenuated in Nrf2‐inhibited HUVECs. Conclusion and Implication AEE protects vascular endothelial cells from oxidative injury by regulating NOS and Nrf2 signalling pathways. This suggests that AEE is a novel potential agent for the prevention of atherosclerosis." @default.
- W2914968324 created "2019-02-21" @default.
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- W2914968324 date "2019-03-06" @default.
- W2914968324 modified "2023-10-14" @default.
- W2914968324 title "Aspirin eugenol ester attenuates oxidative injury of vascular endothelial cells by regulating NOS and Nrf2 signalling pathways" @default.
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- W2914968324 doi "https://doi.org/10.1111/bph.14592" @default.
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