摘要
目的:探讨海狗油对实验性大鼠脂肪肝的抗脂质过氧化作用及抗脂肪肝的作用机制。方法:小剂量四氯化碳合并高脂饲料建立大鼠脂肪肝模型,7周后,模型组ig等体积橄榄油、阳性药组ig辛伐他汀4mg·kg-1·d-1、海狗油低(L)、中(M)、高(H)剂量组分别ig海狗油0.5,1.6,4.8g·kg-1·d-1,连续8周,正常大鼠作为空白组。测定血清和肝脏中的丙二醛(MDA)、游离脂肪酸(FFA)、超氧化物歧化酶(SOD)、肝细胞色素P450 2E1(CYP2E1)免疫组化表达水平及脂肪肝指标即肝TC、TG、肝重、肝脏系数和组织学检查。结果:海狗油各治疗组与模型组相比血清和肝组织的MDA、FFA含量显著降低,SOD活性升高,CYP2E1免疫组化表达减弱。与之相应,大鼠脂肪肝指标肝重减轻,TC、TG减少,组织学检查显示肝细胞脂变程度显著减轻。结论:海狗油可诱导抗氧化酶SOD的活性,清除过多的氧自由基,从而减轻实验性脂肪肝症状,具有抗脂质过氧化作用。
Objective To study the anti-lipid peroxidation effect of seal oil on rat liver steatosis induced by carbon tetrachloride and high fat diet and its mechanism of action. Methods: Both sc a low dose of carbon tetrachloride and high fat diet were given to male Wistar rats for 7 weeks . Then five groups(n=10 in each) received olive oil, simvastatin 4 mg · kg-1 · d-1, seal oil 0. 5, 1. 6, 4. 8 g · kg-1 · d-1 , administered orally for further 8 weeks,respectively . The untreated control group received only normal feed. The efficacy of seal oil on fatty liver and anti-lipid peroxidation was observed. Results: The contents of MDA and FFA decreased, CYP2E1 expressed weakly and SOD increased significantly in seal oil groups while hepatic TC,TG decreased and fatty liver was markedly improved when tested by pathologic diagnosis. Conclusion: Seal oil can induce SOD activities and eliminate oxygen free radical, thus show anti-lipid peroxidation effects on experimental fatty liver.
出处
《中国海洋药物》
CAS
CSCD
2004年第6期27-31,共5页
Chinese Journal of Marine Drugs
关键词
海狗油
脂肪肝
脂质过氧化
seal oil
fatty liver
lipid peroxidation
