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人血浆HDL对动脉粥样硬化家兔肝细胞膜LDL受体活性影响的研究
引用本文:吴新伟,傅明德,蓝德宾,邓萍,周建均. 人血浆HDL对动脉粥样硬化家兔肝细胞膜LDL受体活性影响的研究[J]. 生物化学与生物物理进展, 1999, 26(6): 0
作者姓名:吴新伟  傅明德  蓝德宾  邓萍  周建均
作者单位:华西医科大学载脂蛋白研究室!成都610041(吴新伟,傅明德,蓝德宾),成都蜀阳制药厂!成都610214(邓萍,周建均)
基金项目:国家新药研究基金!(969010578).
摘    要:高胆固醇饲料喂养造成的动脉粥样硬化(As) 模型家兔通过静脉注射人血浆HDL 制剂, 观察HDL 对As家兔肝细胞膜LDL受体活性的影响. 结果发现, 摄取高胆固醇饲料的As 家兔, 其肝细胞膜LDL 受体 Kd 值虽无明显变化但Bmax 值显著减小( P< 0-01 , 与正常对照组比较) ; 注射HDL 制剂后, As 家兔肝细胞膜LDL受体Kd 值仍无明显改变, 但Bmax 值却显著回升( P< 0-01 , 与高脂组比较) . 表明人血浆HDL 具有增加As 家兔肝细胞膜LDL 受体活性的作用.

关 键 词:动脉粥样硬化  高密度脂蛋白  低密度脂蛋白受体  肝细胞膜  胆固醇逆向转运
修稿时间:: 1998-09-

Effect of Human Plasma HDL on LDL Receptors of Atherosclerosis Rabbit Liver Plasma Membranes.
WU Xin Wei,FU Ming De,LAN De Bin,DENG Ping ),ZHOU Jian Jun ). Effect of Human Plasma HDL on LDL Receptors of Atherosclerosis Rabbit Liver Plasma Membranes.[J]. Progress In Biochemistry and Biophysics, 1999, 26(6): 0
Authors:WU Xin Wei  FU Ming De  LAN De Bin  DENG Ping )  ZHOU Jian Jun )
Affiliation:WU Xin Wei,FU Ming De,LAN De Bin,DENG Ping 1),ZHOU Jian Jun 1)
Abstract:Atherosclerosis(As)rabbit model was developed by feeding with high cholesterol diet for 12 weeks,then As rabbits were injected intravenously with human plasma HDL preparation for 10 weeks,the effect of HDL on activity of LDL receptors on As rabbit liver plasma membranes was investigated. It was shown that the value of B max of LDL receptor was significantly lower in As rabbit than that in normal rabbit( P <0 01), while the value of K d showed no difference; in HDL treated rabbits, the value of B max increased significantly compared with the rabbits without HDL treatment( P <0 01), while the value of K d showed no difference yet. The results suggested that human plasma HDL could enhance the activity of LDL receptors on liver plasma membranes of As rabbit.
Keywords:atherosclerosis   HDL   LDL receptor   liver plasma membrane   reverse cholesterol transport
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