非诺贝特抑制脂肪细胞组织因子表达
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Fenofibrate Inhibiting Tissue Factor Expression in Adipocytes
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    摘要:

    为探讨动脉粥样硬化兔脂肪细胞组织因子表达及非诺贝特对其的影响,将15只兔随机分为正常组、动脉粥样硬化组和非诺贝特组,非诺贝特组在高胆固醇饮食第9周起加用非诺贝特(每天30mg/kg)干预4周,采用逆转录聚合酶链反应测定脂肪细胞组织因子的表达。结果发现,高胆固醇饮食可显著升高血清总胆固醇(P<0 .0 5 ) ,甘油三酯无明显升高;加用非诺贝特治疗4周,总胆固醇和甘油三酯均无明显改变。动脉粥样硬化组脂肪细胞组织因子表达明显高于正常组(1.0 81±0 .0 11比0 .939±0 .0 18,P<0 .0 1) ,非诺贝特治疗4周后组织因子表达较动脉粥样硬化组显著降低(0 .893±0 .0 2 2比1.0 81±0 .0 11,P<0 .0 1)。结果提示,动脉粥样硬化组兔脂肪细胞表达组织因子明显增加,非诺贝特能抑制其表达,提示非诺贝特可能具有抗血栓作用

    Abstract:

    Aim To investigate tissue factor (TF) mRNA expression in adipocytes of atherosclerotic rabbit, and the effects of fenofibrate on the expression of TF in adipocytes. Methods Male rabbits (n=15) were randomly separated into three groups. Normal group were fed with normal diet for 12 weeks, and the other two groups were fed with high-cholesterol diet for 8 weeks and then assigned to 30 mg/(kg·d) fenofibrate and placebo for 4 weeks. At the end of 12 th week from the start of experiment, subcutaneous adipose was collected for adipocytes culture under deep anesthesia. The level of TF mRNA was detected by reverse transcription-polymerase chain reaction. Results The atherogenic diet caused a consistent increase in serum levels of total cholesterol (TC) (p<0.05) and did not affect serum triglyceride (TG) levels. Fenofibrate did not change serum levels of TG and TC. In the rabbits fed with a high cholesterol diet, TF mRNA expression in adipocytes was elevated (1.081±0.011 vs. 0.939±0.018, p<0.01). Fenofibrate significantly reduced TF mRNA (0.893±0.022 vs. 1.081±0.011, p<0.01). Conclusion TF mRNA expression increases in adipocytes of atherosclerotic rabbit. Fenofibrate reduces TF expression in adipocytes,which suggests that fenofibrate may have an antithrombtic effect.

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李洁琪,赵水平,吴洁.非诺贝特抑制脂肪细胞组织因子表达[J].中国动脉硬化杂志,2004,12(5):565~567.

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  • 收稿日期:2003-10-22
  • 最后修改日期:2004-03-22
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