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河北医学院于志恒等人通过对河北、贵州、山东等省甲状腺肿流行地区的49130人的调查研究,发现碘与甲状腺肿流行具有双相关系,有上、下限阈值;低于下限值可发生低碘甲状腺肿,高于上限值则会发生高碘甲状腺肿。此外,他们还发现水碘与甲状腺肿患病率呈“√”形曲线关系,并提出了人体摄碘量、尿碘量的安全范围。这个研究成果,比较科学地解释了碘与甲状腺肿流行的关系,为今后合理用碘防治甲状腺肿提供了依据,并对地方性高碘或低碘甲状腺肿的
Hebei Medical College, Zhi-Heng Yu and others through Hebei, Guizhou, Shandong and other provinces goitre endemic 49130 people survey found that iodine and goiter prevalence has a biphasic relationship, with upper and lower threshold; below the lower limit Low iodine goiter occurs, higher than the upper limit will occur high iodine goiter. In addition, they also found a “√” -shape curve between the water iodine and the prevalence of goiter, and proposed a safe range of iodine intake and urinary iodine intake. This research results, a more scientific explanation of the relationship between iodine and the prevalence of goiter, iodine prevention and control for the future to provide a basis for goiter, and the local high iodine or iodine deficiency goiter