scholarly journals The Effects of Xanthine Oxidoreductase Inhibitors on Oxidative Stress Markers following Global Brain Ischemia Reperfusion Injury in C57BL/6 Mice

PLoS ONE ◽  
2015 ◽  
Vol 10 (7) ◽  
pp. e0133980 ◽  
Author(s):  
Masahiro Yamaguchi ◽  
Ken Okamoto ◽  
Teruo Kusano ◽  
Yoko Matsuda ◽  
Go Suzuki ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Reperfusion Injury ◽  
Brain Ischemia ◽  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Xanthine Oxidoreductase ◽  
Oxidative Stress Markers ◽  
Global Brain Ischemia ◽  
Stress Markers ◽  
Global Brain

scholarly journals Effect of complete and partial capsulotomy on the renal function tests and oxidative stress markers in rats undergoing ischemia-reperfusion injury

2019 ◽  
Vol 20 (4) ◽  
pp. 29-36
Author(s):  
Yomna Khater ◽  
Awad Rizk ◽  
Mohamed Saad ◽  
Adel Zaghloul
Keyword(s):  
Oxidative Stress ◽  
Renal Function ◽  
Serum Creatinine ◽  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Oxidative Stress Markers ◽  
Stress Markers ◽  
Post Surgery ◽  
Renal Function Tests ◽  
And Oxidative Stress

Objective: To compare the effect of complete and partial renal capsulotomy on the renal function tests and oxidative stress markers in rats undergoing ischemia-reperfusion injury. Design: Randomized controlled experimental study. Animals: A 60 Spraque-dawely rats weighing 180 ± 50 g. Procedures: Rats were divided into 3 groups in triplicate (6 each). In addition, 6 rats were subjected to blood and renal tissues sampling for estimation of normal parameters. Group 1 (Positive control): ischemia reperfusion (IR) injury; Group 2: Complete capsulotomy + I R; Group 3: Partial capsulotomy + IR. Six rats from each group were sacrified at 2, 7 and 14 days post- surgery. Results: The complete capsulotomy induced a significant decrease in the serum creatinine at 2 and 7 days post- capsulotomy in comparison with partial capsulotomy (P < 0.05), whereas at 14 days, the partial capsulotomy induced the significant decrease (P < 0.05). Complete capsulotomy showed a significant improvement in creatinine clearance in comparasion with partial capsulotomy at 2, 7 and 14 days post- surgery (p<0.05). At 2 and 7 days, BUN of IR+ Capsulotomy group showed a significant decrease (P < 0.05) compared to the other groups, while at 14 days partial capsulotomy, the serum BUN reached to the normal value. Serum sodium level showed a significant decrease (P < 0.05) at 2 days after partial capsulotomy, and at 14 days after complete capsulotomy (P < 0.05). Nitric oxide level in IR + partial capsulotomy group showed a significant decrease at 7 and 14 days (P < 0.05). Results of MDA of IR+ partial capsulotomy groups showed a significant decrease (P < 0.05) compared to the IR+ compete capsulotomy groups at 2,7 and 14 days. Conclusion and clinical relevance: The partial capsulotomy ameliorates could improve serum creatinine, BUN and could lower the oxidative stress at 14 days. Partial capsulotomy could also improve the renal tissues at both short and long-term. So this study indicates the importance of the presence of intact renal capsule for ischemic acute kidney injury.

scholarly journals microRNA-130a-5p suppresses myocardial ischemia reperfusion injury by downregulating the HMGB2/NF-κB axis

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yong Li ◽  
Hongbo Zhang ◽  
Zhanhu Li ◽  
Xiaoju Yan ◽  
Yuan Li ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Myocardial Ischemia ◽  
Reperfusion Injury ◽  
Mouse Models ◽  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Luciferase Reporter ◽  
Gene Assay ◽  
Myocardial Ischemia Reperfusion Injury ◽  
Myocardial Ischemia Reperfusion

Abstract Background Myocardial ischemia reperfusion injury (MIRI) is defined as tissue injury in the pathological process of progressive aggravation in ischemic myocardium after the occurrence of acute coronary artery occlusion. Research has documented the involvement of microRNAs (miRs) in MIRI. However, there is obscure information about the role of miR-130a-5p in MIRI. Herein, this study aims to investigate the effect of miR-130a-5p on MIRI. Methods MIRI mouse models were established. Then, the cardiac function and hemodynamics were detected using ultrasonography and multiconductive physiological recorder. Functional assays in miR-130a-5p were adopted to test the degrees of oxidative stress, mitochondrial functions, inflammation and apoptosis. Hematoxylin and eosin (HE) staining was performed to validate the myocardial injury in mice. Reverse transcription quantitative polymerase chain reaction (RT-qPCR) was employed to assess the expression patterns of miR-130a-5p, high mobility group box (HMGB)2 and NF-κB. Then, dual-luciferase reporter gene assay was performed to elucidate the targeting relation between miR-130a-5p and HMGB2. Results Disrupted structural arrangement in MIRI mouse models was evident from HE staining. RT-qPCR revealed that overexpressed miR-130a-5p alleviated MIRI, MIRI-induced oxidative stress and mitochondrial disorder in the mice. Next, the targeting relation between miR-130a-5p and HMGB2 was ascertained. Overexpressed HMGB2 annulled the protective effects of miR-130a-5p in MIRI mice. Additionally, miR-130a-5p targets HMGB2 to downregulate the nuclear factor kappa-B (NF-κB) axis, mitigating the inflammatory injury induced by MIRI. Conclusion Our study demonstrated that miR-130a-5p suppresses MIRI by down-regulating the HMGB2/NF-κB axis. This investigation may provide novel insights for development of MIRI treatments.

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