Abstract
Acute alcohol consumption has adverse effects in the kidney, resulting in kidney damage and disease, which are typically accompanied by oxidation and inflammation. Scutellarin (SCU) is the major effective ingredient of breviscapine and its anti-inflammation and antioxidant efficacy has been previously reported. The present study revealed the protective effective of SCU as therapeutic medicine against alcohol-induced inflammation and oxidative stress, leading to acute kidney injury (AKI). The AKI model was established by giving 50 % ethanol (12 mL/kg) via lavage. Kidney tissues were collected and used for histopathology analysis, biochemical assays and qRT-PCR analysis. The therapeutic effects of SCU were evaluated by observing pathological changes from HE-stained kidney tissues. Additionally, the anti-inflammation activity of SCU was evaluated by measuring the relative mRNA expression levels of Tnf-α, Il-1β, Il-6 and the activity of iNOS. The antioxidant capacity was assessed by measuring the lipid peroxidation marker 'MDA' and antioxidant enzymes activity of SOD, CAT and GSH-Px. The results showed that serious swelling and damage occurred in the renal tubular epithelium of alcohol intake group, accompanying with glomerular atrophy, necrosis and increase of inflammatory infiltration. SCU treatment significantly reduced the damage of diseased renal tubular epithelium and glomerular, and less inflammatory cell emerged. The inflammation cytokines expression levels were elevated and oxidative stress index decreased after alcohol intake compared to the control group. In conclusion, inflammation and oxidative stress occur in the kidney after acute and excessive alcohol intake, SCU exhibited protective roles via its anti-inflammation and antioxidant activity in AKI.
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