[Protection of vascular endothelial cells from high glucose injury induced by quercetin]
- PMID: 12583178
[Protection of vascular endothelial cells from high glucose injury induced by quercetin]
Abstract
Objective: To evaluate the effects of quercetin on the high glucose-injured vascular endothelial cells (VECs).
Methods: Experiments were divided into control group, injured group and quercetin group. The cultured VECs were injured by high glucose. The proliferation of VECs was assessed by MTT assay. The amount of NO and lipid peroxidation (monitored as maloraldehyde, MDA) of VECs were assessed by fluorometric assay. The amount of lactate dehydrogenase (LDH) was assessed by spectrophotometric method.
Results: 10(-2), 10(-3), 10(-4), 10(-5) mg/ml quercetin increased the proliferation of high glucose-injured VECs. 10(-2), 10(-3) mg/ml quercetin reduced LDH release and MDA production, increased NO release.
Conclusion: Quercetin can protect cultured VECs from being injured by high glucose.
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