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Depression: 21st Century Solutions + The Dark Side of Wheat

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Abstract Title:

Effects of blueberry anthocyanins on retinal oxidative stress and inflammation in diabetes through Nrf2/HO-1 signaling.

Abstract Source:

J Neuroimmunol. 2016 Nov 9. Epub 2016 Aug 9. PMID: 27847126

Abstract Author(s):

Yu Song, Lili Huang, Jianfeng Yu

Article Affiliation:

Yu Song

Abstract:

Anthocyanins, which are abundant in blueberries, provide significant protection against many chronic diseases. We investigated the effects of blueberry anthocyanins (BA) on diabetes-induced oxidative stress and inflammation in rat retinas. Male rats were divided randomly into five groups. Intraperitoneal injection of streptozotocin (STZ, 60mg/kg) was used to induce a rat diabetes model. BA at 20, 40, and 80mg/kg were given orally for about 12weeks. The results showed that BA could prevent diabetes-induced weight loss and increased blood glucose. BA also upregulated the antioxidant capacity of the retina, increased the content of glutathione (GSH) and glutathione peroxidase (GPx) activity, and decreased malondialdehyde (MDA) and reactive oxygen species (ROS) levels. Vascular endothelial growth factor (VEGF) and interleukin-1β (IL-1β) in the serum of diabetes model rats were upregulated, and BA reversed these changes significantly. Furthermore, BA increased the mRNA levels of Nrf2 and HO-1, as well as the nuclear location of Nrf2 and protein levels of HO-1. These results suggested that BA can protect retinal cells from diabetes-induced oxidative stress and inflammation, and this may be regulated through Nrf2/HO-1 signaling.

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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