进行了几项研究用以评估硒、碘联合缺乏的作用。硒缺乏能加重因碘缺乏引起的甲状腺功能减退和甲状腺肿。对比之下 ,硒缺乏能增加或降低脑 型脱碘酶 ( ID )的活性 ,而此种关键酶提供 T3为脑正常发育所必需。一些动物研究表明 ,硒和碘缺乏之间存在着复杂的相互作用 ,并为人类硒 Several studies were conducted to assess the role of combined selenium and iodine deficiency. Selenium deficiency can aggravate hypothyroidism and goiter due to iodine deficiency. In contrast, selenium deficiency increases or decreases the activity of brain-type deiodine (ID), a key enzyme that provides T3 necessary for normal brain development. Some animal studies have shown that there is a complex interaction between selenium and iodine deficiency and that human selenium