Tirkey Naveen, Pilkhwal Sangeeta, Kuhad Anurag, Chopra Kanwaljit
Pharmacology division, University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh-160014, India.
BMC Pharmacol. 2005 Jan 31;5:2. doi: 10.1186/1471-2210-5-2.
CCl4 is a well-established hepatotoxin inducing liver injury by producing free radicals. Exposure to CCl4 also induces acute and chronic renal injuries. The present study was designed to establish the protective effect of hesperidin (HDN), a citrus bioflavonoid, on CCl4-induced oxidative stress and resultant dysfunction of rat liver and kidney.
Animals were pretreated with HDN (100 and 200 mg/kg orally) for one week and then challenged with CCl4 (2 ml/kg/s.c.) in olive oil. Rats were sacrificed by carotid bleeding under ether anesthesia. Liver enzymes, urea and creatinine were estimated in serum. Oxidative stress in liver and kidney tissue was estimated using Thiobarbituric acid reactive substances (TBARS), glutathione (GSH) content, superoxide dismutase(SOD), and Catalase (CAT) RESULTS: CCl4 caused a marked rise in serum levels of ALT and AST (P < 0.05). TBARS levels were significantly increased whereas GSH, SOD and CAT levels decreased in the liver and kidney homogenates of CCl4 treated rats. HDN (200 mg/kg) successfully attenuated these effects of CCl4
In conclusion, our study demonstrated a protective effect of HDN in CCl4 induced oxidative stress in rat liver and kidney. This protective effect of HDN can be correlated to its direct antioxidant effect.
四氯化碳是一种公认的肝毒素,通过产生自由基诱导肝损伤。接触四氯化碳还会诱发急性和慢性肾损伤。本研究旨在确定柑橘生物类黄酮橙皮苷(HDN)对四氯化碳诱导的大鼠肝脏和肾脏氧化应激及由此产生的功能障碍的保护作用。
动物口服HDN(100和200毫克/千克)预处理一周,然后在橄榄油中腹腔注射四氯化碳(2毫升/千克)进行攻击。在乙醚麻醉下通过颈动脉放血处死大鼠。测定血清中的肝酶、尿素和肌酐。使用硫代巴比妥酸反应性物质(TBARS)、谷胱甘肽(GSH)含量、超氧化物歧化酶(SOD)和过氧化氢酶(CAT)评估肝脏和肾脏组织中的氧化应激。结果:四氯化碳导致血清谷丙转氨酶(ALT)和谷草转氨酶(AST)水平显著升高(P < 0.05)。在四氯化碳处理的大鼠肝脏和肾脏匀浆中,TBARS水平显著升高,而GSH、SOD和CAT水平降低。HDN(200毫克/千克)成功减轻了四氯化碳的这些作用。
总之,我们的研究证明了HDN对四氯化碳诱导的大鼠肝脏和肾脏氧化应激具有保护作用。HDN的这种保护作用与其直接的抗氧化作用相关。