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Reservatrol

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https://www.readbyqxmd.com/read/25466015/resveratrol-dimers-nutritional-components-in-grape-wine-are-selective-ros-scavengers-and-weak-nrf2-activators
#1
Chang Li, Xiaofei Xu, Zhihao Tao, Xiu Jun Wang, Yuanjiang Pan
Resveratrol monomer (Res) and its oligomers are considered as nutritional components distributed in edible plants. Three naturally occurring resveratrol dimers, namely parthenocissin A (Par), quadrangularin A (Qua) and pallidol (Pal), were synthesized and evaluated for their ability to scavenge reactive oxygen species (ROS) and to activate the transcription factor Nrf2, which regulates cellular antioxidant systems. In vitro studies with different ROS and radical assay models showed that all the three dimers are strong DPPH quenchers and selective singlet oxygen ((1)O2) scavengers (IC50=4...
April 15, 2015: Food Chemistry
https://www.readbyqxmd.com/read/15134380/wine-and-endothelial-function
#2
REVIEW
G Caimi, C Carollo, R Lo Presti
In recent years many studies have focused on the well-known relationship between wine consumption and cardiovascular risk. Wine exerts its protective effects through various changes in lipoprotein profile, coagulation and fibrinolytic cascades, platelet aggregation, oxidative mechanisms and endothelial function. The last has earned more attention for its implications in atherogenesis. Endothelium regulates vascular tone by a delicate balancing among vasorelaxing (nitric oxide [NO]) and vasoconstrincting (endothelins) factors produced by endothelium in response to various stimuli...
2003: Drugs Under Experimental and Clinical Research
https://www.readbyqxmd.com/read/11897104/antioxidant-compounds-protect-dopamine-neurons-from-death-due-to-oxidative-stress-in-vitro
#3
Natalie D Stull, David P Polan, Lorraine Iacovitti
Using tissue culture models of oxidative stress caused by serum deprivation or MPTP/MPP+ toxicity, the present study establishes that the antioxidants epigallocatechin gallate, lazaroids U74389G and U83836E, reservatrol, MnTBAP, MCI 186, trolox, and melatonin protect 68-100% of dopamine (DA) neurons from cell death. In contrast, the nitric oxide inhibitor LY83583, the caspase inhibitors Z-VAD-FMK, Ac-DQMD-CHO and Z-DEVD-FMK, and the CDK-5 inhibitor, roscovotine were not neuroprotective, although death was often delayed by 1 day in vitro...
March 29, 2002: Brain Research
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