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KMID : 0363320140350010092
Journal of Korean Oriental Internal Medicine
2014 Volume.35 No. 1 p.92 ~ p.105
Antioxidative Effects of Lycium chinense Miller on Cisplatin-induced Nephrotoxicity in Rats
Jung Yu-Sun

Park Chan-Hum
Shin Hyeon-Cheol
Abstract
Objectives : Cisplatin is a widely used cancer therapy drug. However, nephrotoxicity resulting in increased oxidative stress is a major side effect of cisplatin chemotherapy, thereby limiting its chemotherapeutic use. Lycium chinense Miller (LCM) has been used as a traditional herbal medicine in various febrile and inflammatory diseases such as night sweat, cough, nosebleed, bronchitis, pulmonary tuberculosis, etc. In this study we investigated the protective and antioxidative potential of LCM against cisplatin-induced nephrotoxicity in rats.

Methods : Twenty-four 8-week-old male Wistar rats were divided into four groups: normal untreated; cisplatin treatment
only; LCM 10 mg/kg plus cisplatin treatment; and LCM 30 mg/kg plus cisplatin treatment. Twenty-four hours after the last
cisplatin injection, all the rats were sacrificed, and serological changes were evaluated. The levels of NF-¥êB activity and
NOX-4, p47phox, p22phox, COX-2, iNOS, SOD, catalase expressions were analyzed in Western blot analysis.

Results : Cisplatin injection caused an increase in the BUN level, which is a reliable indicator of renal toxicity. The levels
of BUN, renal ROS, and renal TBARS were significantly reduced in the LCM groups compared with the cisplatin-only groups. The levels of p47phox and p22phox, which are NADPH oxidase subunits, were increased in the cisplatin-only groups, whereas they were decreased in the LCM groups. The levels of renal NF-¥êB activity and COX-2, iNOS expressions were increased significantly in the cisplatin-only groups compared with the normal groups, whereas they were decreased in the LCM groups. Compared with the cisplatin-only groups, renal GSH and GSH/GSSG increased in the LCM groups. Also, the administration of LCM increased levels of SOD and catalase as compared with the cisplatin-only groups.

Conclusions : These results suggest that LCM protects cisplatin-induced nephrotoxicity via a mechanism that may
involves the inhibition of oxidative stress by the activation of antioxidants.
KEYWORD
Lycium chinense Miller, cisplatin, nephrotoxicity, NF-¥êB, GSH
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