摘要目的 评价尿β_2-微球蛋白(β_2-MG)、白蛋白(Alb)、免疫球蛋白G(IgG)联检在甲亢患者中的临床意义.方法 放免法检测120例甲亢患者和45名健康体检者尿β_2-MG、Alb、IgG和血清游离三碘甲腺原氨酸(FT_3)、游离甲状腺素(FT_4)水平,对各参数进行对比分析.结果 尿β_2-MG、Alb、IgG水平在甲亢A(原发组)组与B组(未治愈组)中明显高于对照组及甲亢C组治愈组(t=6.682.P<0.01);甲亢B组又高于甲亢A组(t=2.385,P<0.05);甲亢C组与对照组无显著性差异(t=0.568.P>0.05).甲亢组尿β_2-MG、Alb、IgG分别与血清FT3、FT4水平具有较好的相关性,相关系数分别为0.98、0.88、0.93、0.87、0.94、0.85.结论 联合检测尿β_2-MG、Alb、IgG对于早期发现甲亢患者肾功能损害、确定肾脏受损部位及肾小球损伤的程度等具有一定临床价值.

abstractsObjective To evaluate the clinical significance of joint detection of urine β_2-microglobulin(β_2-MG),albumin(Alb)and immunoglobulin G(IgG)in patients with hyperthyroidism Methods Urine β_2-MG,Alb,IgG and serum thyroid hormone free trilute(FT_3),free thyroxin(FT_4)of 45healthy volunteers(as control group)and 120 patients with hyperthyroidism were measured by radioimmunoassay(RIA).Results The urine β_2-MG,Alb and IgG in the hyperthyroidism group(including the primary group(group A)and uncured group(group B))were distinctly higher than those in control group and hyperthyroidism cured group(group C)(t=6.682,P<0.01).It was distinctly higher in hyperthyroidism group B than that in hyperthyroidism group A(t=2.385,P<0.05).And there was no distinct difference between the control group with hyperthyroidism group C in urine β_2-MG,Alb and IgG(t=0.568,P>0.05).There was favorable correlation between the urine β_2-MG,Alb and IgG with serum FT3 and FT4(the related coeflicients were 0.98,0.88,0.93,0.87,0.94,and 0.85 respectively).Conclusion It is important to measure urine β_2-MG together with Alb and IgG in early judgment of the location and degree of kidney injury,as well as the severity of disease in patients with hyperthyroidism.