Department of Endocrinology and metabolism diseases, Faculty of Medicine, Ataturk University, Erzurum, Turkey.
Department of Histology and Embryology, Faculty of Medicine, Recep Tayyip Erdogan University, Rize, Turkey.
J Biochem Mol Toxicol. 2021 Aug;35(8):e22836. doi: 10.1002/jbt.22836. Epub 2021 Jun 1.
The mortality rate in ruptured abdominal aortic aneurysms can today be reduced through cardiovascular surgery. However, ischemia and reperfusion-induced tissue damage develop due to aortic cross-clamping applied during surgery. The present study aimed to reduce oxidative stress-induced hepatic damage resulting from ischemia and reperfusion due to aortic cross-clamping during surgery by means of resveratrol administration. Forty male Sprague-Dawley rats were randomly assigned into four groups: control (healthy), glycerol+ischemia/reperfusion (I/R) (sham), I/R, and I/R + Resveratrol. In all groups scheduled for I/R, 60 min of shock was followed by 60 min of ischemia. In the I/R + Resveratrol group, 10 mg/kg of resveratrol was administered 15 min before ischemia and immediately before reperfusion via the intraperitoneal route. In addition, 120 min of reperfusion was applied under anesthesia after ischemia in all groups. Intralobar and interlobar necrosis, vascular congestion, and edematous fields resulting from aortic occlusion were present. Liver tissue malondialdehyde (MDA) levels and cleaved caspase-3 positivity increased, while glutathione (GSH) levels decreased. However, resveratrol administration reduced intralobular and interlobar necrosis, vascular congestion and edematous fields, cleaved caspase-3 positivity, and MDA levels, and increased GSH levels. Our findings suggest that resveratrol is effective against aortic occlusion-induced liver injury by reducing oxidative stress and apoptosis.
腹主动脉瘤破裂患者的死亡率目前可以通过心血管手术降低。然而,手术中应用的主动脉阻断会导致缺血再灌注引起的组织损伤。本研究旨在通过给予白藜芦醇来减少手术中主动脉阻断引起的缺血再灌注引起的氧化应激诱导的肝损伤。40 只雄性 Sprague-Dawley 大鼠随机分为四组:对照组(健康)、甘油+缺血/再灌注(I/R)(假手术)、I/R 组和 I/R+白藜芦醇组。所有 I/R 组均进行 60 分钟休克,然后进行 60 分钟缺血。在 I/R+白藜芦醇组中,在缺血前 15 分钟和再灌注前通过腹腔途径给予 10mg/kg 的白藜芦醇。此外,所有组在缺血后均在麻醉下进行 120 分钟再灌注。由于主动脉闭塞导致的肝叶内和肝叶间坏死、血管充血和水肿区域。肝组织丙二醛(MDA)水平和裂解半胱天冬酶-3 的阳性率增加,而谷胱甘肽(GSH)水平降低。然而,白藜芦醇的给予减少了小叶内和小叶间坏死、血管充血和水肿区域、裂解半胱天冬酶-3 的阳性率和 MDA 水平,并增加了 GSH 水平。我们的研究结果表明,白藜芦醇通过减少氧化应激和细胞凋亡对主动脉闭塞引起的肝损伤有效。