Edaravone protects from retinal injury through NF-κB in diabetic rats.

Abstract:

OBJECTIVE:To observe whether edaravone has a therapeutic and protective effect on retinal injury in diabetic rats through the nuclear factor-κB (NF-κB) pathway. MATERIALS AND METHODS:The Sprague-Dawley rat model of diabetes was established and divided into diabetes model group (model group) and edaravone treatment group (treatment group). Also, normal control group (control group) was set up. After successful modeling, the blood and retinal tissues of rats were collected. Then, the blood glucose content and serum interleukin-6 (IL-6) were detected. Antioxidant indexes, superoxide dismutase (SOD), and malondialdehyde (MDA), were detected via enzyme-linked immunosorbent assay (ELISA), while the number of corneal nerve fibers was observed microscopically. Moreover, the gene and protein expressions of SOD and NF-κB pathway in tissues were detected via quantitative Reverse Transcription-Polymerase Chain Reaction (qRT-PCR) and Western blotting. RESULTS:The level of blood glucose in model group was increased compared with that in control group (p<0.05), indicating the successful modeling. The levels of tumor necrosis factor-α (TNF-α), IL-6, and IL-1 were significantly higher in model group than those in control group. In terms of the antioxidant indexes, the level of MDA in model group was significantly higher than that in other two groups, while the level of SOD in treatment group was significantly increased and close to that in control group. Besides, the number of corneal nerve fibers significantly declined in model group, while it was increased in treatment group but still lower than that in control group. According to the gene detection results, the mRNA expression of NF-κB p65 was markedly higher in model group than that in control group, and it was decreased in treatment group, while the mRNA expression of SOD showed the opposite trend. The protein expression of NF-κB p65 was remarkably higher in model group than in control group, was decreased in treatment group, and was close to that in control group, while the protein expression of SOD showed the opposite trend. CONCLUSIONS:Edaravone can affect the oxidation and antioxidation through the NF-κB signaling pathway, thereby exerting a therapeutic and protective effect on retinal injury in diabetic rats.

authors

Wan YJ,Hu L,Wang XM

doi

10.26355/eurrev_201908_18622

subject

Has Abstract

pub_date

2019-08-01 00:00:00

pages

17-23

issue

3 Suppl

eissn

1128-3602

issn

2284-0729

journal_volume

23

pub_type

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