title: Structural requirements of anthocyanins in relation to inhibition of endothelial injury induced by oxidized low-density lipoprotein and correlation with radical scavenging activity.
abstract: Anthocyanins may play an important role in atherosclerosis prevention. However, the structure-function relationships are not well understood. The objective of this study was to compare the inhibitory effect of 21 anthocyanins against oxidized low-density lipoprotein-induced endothelial injury to understand the relationship between anthocyanin chemical structure and the endothelial protective properties, measured as cell viability, MDA production and NO release. Additionally, the intracellular anti-radical activity of the selected anthocyanins was investigated to identify the correlation with endothelial protection. Our results provide evidence that the number of -OH in total or in B-ring, 3',4'-ortho-dihydroxyl and 3-hydroxyl are the main structural requirements of anthocyanins in suppressing oxidative stress-induced endothelial injury and such inhibitory effect was significantly correlated with the intracellular radical scavenging activity.
authors.affiliation: Research Center for Nutrition and Food Safety, The Third Military Medical University, Chongqing Key Laboratory of Nutrition and Food Safety, Chongqing, PR China.
authors.forename: Long
authors.initials: L
authors.lastname: Yi
authors.forename: Chun-ye
authors.initials: CY
authors.lastname: Chen
authors.forename: Xin
authors.initials: X
authors.lastname: Jin
authors.forename: Man-tian
authors.initials: MT
authors.lastname: Mi
authors.forename: Bin
authors.initials: B
authors.lastname: Yu
authors.forename: Hui
authors.initials: H
authors.lastname: Chang
authors.forename: Wen-hua
authors.initials: WH
authors.lastname: Ling
authors.forename: Ting
authors.initials: T
authors.lastname: Zhang
mesh_terms: D000872:Anthocyanins / Q000737:chemistry / Q000494:pharmacology*; D002460:Cell Line; D002470:Cell Survival / Q000187:drug effects; D042783:Endothelial Cells / Q000166:cytology / Q000187:drug effects* / Q000378:metabolism*; D016166:Free Radical Scavengers / Q000378:metabolism*; D006801:Humans; D008077:Lipoproteins, LDL / Q000494:pharmacology*; D008315:Malondialdehyde / Q000378:metabolism; D009569:Nitric Oxide / Q000378:metabolism; D013329:Structure-Activity Relationship
chemical_list: D000872:Anthocyanins; D016166:Free Radical Scavengers; D008077:Lipoproteins, LDL; C099252:oxidized low density lipoprotein; D009569:Nitric Oxide; D008315:Malondialdehyde