正常甲状腺激素动力学甲状腺吸收和摄取食入的碘,碘在甲状腺内与单或双碘甲状腺酪氨酸结合而被有机化。2个双碘酪氨酸基分子结合形成 T_4;1个单碘酪氨酸基分子与剩余在甲状腺球蛋白中的1个双碘酪氨酸结合形成 T_3,甲状腺球蛋白是甲状腺激素的贮存蛋白。当甲状腺球蛋白再由甲状腺细胞吸收时,T_4和 T_3即释放到血循环中。业已查明,血循环中的 T_3多数 Normal Thyroid Hormone Dynamics The thyroid absorbs and ingests ingested iodine, which is organized in the thyroid by binding to mono- or di-iodo-thyroid tyrosine. Two double iodine tyrosine molecules combine to form T_4; one monoiodotyrosine molecule binds to one double iodotyrosine remaining in thyroglobulin to form T_3, thyroglobulin is a storage protein for thyroid hormones . When thyroglobulin is absorbed by thyroid cells, T_4 and T_3 are released into the blood circulation. Has been identified, blood circulation in the majority of T_3