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Cytoprotective effects of berry anthocyanins against induced oxidative stress and inflammation in primary human diabetic aortic endothelial cells.

07:00 EST 11th January 2020 | BioPortfolio

Summary of "Cytoprotective effects of berry anthocyanins against induced oxidative stress and inflammation in primary human diabetic aortic endothelial cells."

Type 2 diabetes is associated with oxidative stress and low-grade inflammation resulting in endothelial dysfunction (ED). This study determined to explore the protective effects of berry-derived anthocyanins (AC) with potent antioxidant and anti-inflammatory activities in human diabetic endothelial cells upon oxidative and inflammatory stressors. Cultured healthy human aortic endothelial cells (HAEC) and diabetic human aortic endothelial cells (D-HAEC) exposed to oxidative stress by hydrogen peroxide (HO, 75 μM) and lipopolysaccharide (LPS, 1 μg/mL) as an inflammatory inducer before treatment with AC (50 μl/ml). The results from cytotoxicity assays showed that AC had no significant effects in cell viability (P-value < 0.0001), and exposure to HO 75 μM had a less toxic effect (P-value < 0.05). Although, AC significantly decreased HO-induced cytotoxicity and oxidative stress in both HAEC and D-HAEC cell lines (P-value < 0.0001), no positive impact of AC was found on the GSSG/GSH ratios (P-value < 0.05). Exposure to the LPS increased the production of IL-6 in both HAEC and D-HAEC cell lines (P-value < 0.0001), whereas AC treatment reduced LPS-induced IL-6 production in both cell lines with a more robust impact on D-HAEC (P-value < 0.0001). While LPS increased inflammasome assembling and caspase-1 activation, AC treatment inhibited caspase-1 activation in D-HAEC (P ≤ 0.05). This study indicated that berry anthocyanins reduced oxidative stress and inflammation via the inhibition of the NF-ƙB signaling pathway, which contributes to mitigating the diabetes-induced up-regulation of NF-ƙB.

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This article was published in the following journal.

Name: Chemico-biological interactions
ISSN: 1872-7786
Pages: 108940

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