Karabulut Aysun Bay, Karadag Nese, Gurocak Simay, Kiran Tugba, Tuzcu Mehmet, Sahin Kazım
Department of Biochemistry, Faculty of Medicine, Inonu University, 44280 Malatya, Turkey.
Department of Pathology, Faculty of Medicine, Inonu University, 44280 Malatya, Turkey.
Food Chem Toxicol. 2014 Aug;70:128-33. doi: 10.1016/j.fct.2014.04.036. Epub 2014 May 10.
We evaluated the ability of apricot to attenuate apoptosis and oxidative stress developed during the process of 7,12-dimethylbenz[a]anthracene (DMBA) and radiotherapy in the liver of rats bearing liver damage. Fifty female Wistar rats were divided into 7 groups; (i) normal control rats; (ii) rats fed with standard diet with apricot (20%), (ii) rats fed with standard diet and administrated 6 gray radiotherapy with Co 60 device applied to a single fraction, (iv) rats fed with standard diet and administered intraperitoneally DMBA (20mg/kg), (v) rats fed with standard diet and administered DMBA and 6 gray radiotherapy, (vi) rats fed with standard rat diet and administered DMBA and supplemented apricot, (vii) rats fed with standard diet supplemented apricot administered DMBA and radiotherapy (RT) for 6weeks. Expression of Bax, caspase 3, and glutathione activity decreased in the liver but liver expression of NF-κB, AP-1, CREB, Bcl-2 and ALT, AST, 5'NT, MDA, NO levels increased in DMBA-induced liver damage rats. In conclusion, the results suggest that apricot supplementation and irradiation given in combination, offer maximum protection against DMBA-induced hepatic carcinogenesis.
我们评估了杏对在7,12-二甲基苯并[a]蒽(DMBA)处理及放疗过程中发生于肝损伤大鼠肝脏内的细胞凋亡和氧化应激的减轻作用。五十只雌性Wistar大鼠被分为7组:(i)正常对照大鼠;(ii)喂食含20%杏的标准饮食的大鼠;(ii)喂食标准饮食并使用钴60装置单次给予6格雷放疗的大鼠;(iv)喂食标准饮食并腹腔注射DMBA(20mg/kg)的大鼠;(v)喂食标准饮食并给予DMBA和6格雷放疗的大鼠;(vi)喂食标准大鼠饮食并给予DMBA且补充杏的大鼠;(vii)喂食补充杏的标准饮食并给予DMBA和放疗(RT)持续6周的大鼠。在DMBA诱导的肝损伤大鼠中,肝脏内Bax、半胱天冬酶3的表达及谷胱甘肽活性降低,但肝脏中核因子κB、活化蛋白-1、环磷腺苷效应元件结合蛋白、Bcl-2的表达以及谷丙转氨酶、谷草转氨酶、5'-核苷酸酶、丙二醛、一氧化氮水平升高。总之,结果表明联合给予杏补充剂和放疗能为抵抗DMBA诱导的肝癌发生提供最大程度的保护。