NAG(N—乙酰—β—D 氨基葡萄糖)主要存在于近端肾小管上皮细胞。在各种肾疾病时排至尿中,此时在尿中活性增加,其在尿中排泄的详情尚不清楚。但通过对甲状腺机能异常症尿NAG 活性的研究,认识到尿NAG 活性的增加与儿茶酚胺有重要关系。对象及方法:选择没有合并肾功能障碍及糖尿病的甲状腺机能亢进患者26例(女19例,男7例,年龄 NAG (N-acetyl-β-D glucosamine) is found predominantly in proximal tubular epithelial cells. In a variety of renal diseases row to the urine, then increased activity in the urine, the details of its excretion in the urine is not yet clear. However, through the study of urinary NAG activity of thyroid dysfunction, it is recognized that the increase of urinary NAG activity has an important relationship with catecholamines. PARTICIPANTS AND METHODS: Twenty-six hyperthyroidism patients without renal dysfunction and diabetes mellitus (19 males, 7 males, age