用放射性受体结合实验进行受体活性的测定和结合区域的分析。

The binding ability and binding domain of receptor to ligands were determined by radioactive ligand and receptor binding experiments.

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应用受体的放射配基结合分析法测定出甜菜碱对大鼠肝细胞膜表皮生长因子受体（EGF）及其酪氨酸蛋白激酶（TPK）有显著的结合抑制作用。

Using radioligand of binding assay of receptors determinates that betaine can inhibit the binding of EGF receptor with EGF and affect the TPK activity conspicuously.

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方法：采用放射配体方法测定实验组（A组）与对照组（B组）外周血雄激素受体（AR）水平及痤疮患者服药后AR水平。

Method:Peripheral blood AR levels were measured with rodioligand assay in 13-cis retinoid acid group (group A) and in control group (group B).

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方法：采用放射配体方法测定实验组（A组）与对照组（B组）外周血雄激素受体（AR）水平及痤疮患者服药后AR水平。

Method:Peripheral blood AR levels were measured with rodioligand assay in 13-cis retinoid acid group (group A) and in control group (group B).

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