LDL受体介导的低密度脂蛋白胆固醇水平的升高是致动脉性粥样硬化的主要原因，与冠心病危险性的增加密切相关。

The LDL receptor defects cause the elevation LDLcholesterol in plasma. This is the main reason for atherosclerosis and is closely related to the risk of coronary heart disease (CHD).

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目的：分析比较低密度脂蛋白胆固醇（LDL-C）直接测定与三种间接计算法的适用范围和准确性。

Objective:To analyze and compare the applying scope and accuracy of the results of LDL-C obtained by direct testing method and indirect calculation methods.

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