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地方性甲状腺肿是人类最广泛的疾病之一。根据世界卫生组织的资料,地球上患有甲状腺肿的人数超过2亿。地方性甲状腺肿是一种生物地球化学地方病,首先,它是由于外环境碘不足导致进入人体的碘缺乏所引起的。所以,查明生物圈碘缺乏的区域对制定预防措施具有重要的意义。此外,继发性因素也可加重碘缺乏。有时,尽管外环境中有足够的碘,仍可导致
Endemic goitre is one of the most widespread diseases in mankind. According to the World Health Organization, the number of people with goiter on the planet exceeds 200 million. Endemic goiter is a biogeochemical endemic disease, first of all, it is due to inadequate iodine in the external environment caused by iodine deficiency into the body caused. Therefore, identifying areas of iodine deficiency in the biosphere has important implications for the development of precautionary measures. In addition, secondary factors can also aggravate iodine deficiency. Sometimes, despite enough iodine in the outer environment, it can still be caused