法国Francon等用放免分析法首先测了大鼠红细胞的T_3蓄积及37℃时大鼠全血中红细胞相关性T_3含量。在外加T_3浓度范围较大情况下,红细胞相关性T_3与血浆总T_3的比值为0.235,即红细胞T_3含量是血浆游离T_3的25倍。有资料证明T_3出入红细胞膜是载体介导的且转运速度极快,故提示红细胞可能参与靶细胞T_3的供应。 France Francon and other radioimmunoassay first measured rat erythrocyte T_3 accumulation and rat erythrocyte T_3 content at 37 ℃. In the case of a large concentration range of T_3, the ratio of erythrocyte-related T_3 to total plasma T_3 was 0.235, that is, the amount of T_3 in erythrocytes was 25 times higher than that of plasma free T_3. There is data to prove that the access of T 3 into the erythrocyte membrane is vector-mediated and the transport speed is very fast, suggesting that red blood cells may be involved in the supply of target cells T 3.