摘要
目的 :探讨温胆汤对高脂血症大鼠低密度脂蛋白受体基因表达的影响。方法 :在建立大鼠高脂血症模型基础上 ,观察温胆汤对大鼠血脂水平、总脂解酶 (LA)、脂蛋白脂酶 (LPL)和肝脂酶 (HL)活性以及肝脏低密度脂蛋白受体 (LDLR)基因表达的影响。结果 :温胆汤能显著抑制高脂模型大鼠血清总胆固醇 (TC)、血清总甘油三酯 (TG)浓度 ,提高LPL和LA活性 ,但对HL活性无明显影响 ;逆转录聚合酶链反应 (RT PCR)实验显示高脂模型大鼠肝脏LDLRmRNA表达降低 ,温胆汤能显著上调高脂血症大鼠肝脏LDLRmRNA水平。结论 :温胆汤可能通过调节大鼠肝脏LDLR转录水平预防脂质代谢紊乱。
Objective: To elucidate the molecular mechanism of Wendan Tang in prevention of lipid metabolism disorder in adult rats. Method: On the basis of hyperlipidemia rat models, triglycerides(TG), total cholesterol (TC) in serum, activities of lipase (LA), lipoprotein lipase (LPL), hepatic lipase (HL) in liver, parts of hemogram and hepatic LDLR mRNA levels were investigated 21 days after the feeding of atherogenic diet. Result: Wendan Tang significantly reduced the serum TG, TC and increased the activity of LPL and LA, but caused no chang in HL. The result of RT-PCR test showed that high fat and high cholesterol feeding could significantly induce the reduction of LDLR mRNA levels, while Wendan Tang could increase hepatic LDLR density. Conclusion: Wendan Tang can prevent disorder of lipid metabolism by regulating TC, TG, LDL-c through upregaulation of LDLR transcription level and improving antioxidant ability.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2003年第12期1184-1187,共4页
China Journal of Chinese Materia Medica
