硒对经131I治疗Graves病患者血清甲状腺过氧化物酶抗体水平的影响

Effect of additional selenium on the levels of serum thyroid peroxidase antibody in patients with Graves disease treated with 131I

  • 摘要:
    目的 探讨Graves病患者经131I治疗后,补硒对患者血清甲状腺过氧化物酶抗体(TPOAb)水平的影响。
    方法 选取TPOAb水平为10~1300 IU/ml的Graves病患者266例,其中,TPOAB范围在10~60 IU/ml为阴性,TPOAb > 60 IU/ml为阳性。将所有患者随机分成对照组(112例)和硒治疗组(154例),对照组经131I治疗后行常规治疗,硒治疗组经131I治疗后行常规治疗及服硒制剂(100 μg/次,2次/d),比较两组治疗后6、12个月TPOAb水平及TPOAb阳性率的变化。
    结果 治疗后6个月,两组TPOAb水平较治疗前均明显上升,且差异有统计学意义(对照组:Z=-2.084,P < 0.05;硒治疗组:Z=-2.112,P < 0.05),但两组之间的差异无统计学意义(Z=-0.764,P>0.05);治疗后12个月,对照组TPOAb水平与治疗前相比差异无统计学意义(Z=-1.538,P>0.05),硒治疗组TPOAb水平与治疗前相比差异有统计学意义(Z=-5.465,P < 0.01),两组间比较差异有统计学意义(Z=-2.180,P < 0.05);两组TPOAb水平阳性率在治疗后6、12个月与治疗前相比无明显变化(对照组:x12=0.720、x22=0.103,P均>0.05;硒治疗组:x12=0.023、x22=0.340,P均>0.05),两组间比较差异亦无统计学意义(x12=0.001、x22=0.366,P均>0.05)。
    结论 结论补硒能有效降低经131I治疗的Graves病患者的血清TPOAb水平,对血清高水平TPOAb的降低尤为明显。

     

    Abstract:
    Objective To explore the effect of additional selenium on the serum levels of thyroid peroxidase antibody(TPOAb) after treatment of Graves disease with 131I.
    Methods A total of 266 patients with TPOAb levels between 10 and 1300 IU/ml participated in this study. TPOAb levels within 10 IU/ml to 60 IU/ml were considered negative, and levels greater than 60 IU/ml were considered positive. All patients were randomly divided into control(n=112) and selenium treatment group(n=154). After treatment with 131I, the control group received conventional therapy, whereas the selenium treatment group received additional selenium(100 μg twice a day). The TPOAb levels and positive ratios of the two groups were compared with pre-therapy levels after treatment for 6 and 12 months.
    Results After 6 months, the TPOAb levels in both groups significantly increased compared with the pre-therapy levels(control group:Z=-2.084, P < 0.05; selenium treatment group:Z=-2.112, P < 0.05). However, no significant difference existed in the TPOAb levels between the two groups(Z=-0.764, P > 0.05). After 12 months, the TPOAb levels in the control group did not change significantly compared with the pre-therapy levels(Z=-1.538, P > 0.05), whereas the TPOAb levels in the selenium treatment group significantly decreased compared with the pre-therapy levels(Z=-5.465, P < 0.01). The difference between the two groups were statistically significant(Z=-2.180, P < 0.05). The positive ratios of TPOAb for both groups did not change significantly 6 or 12 months after 131I therapy(control group:x12= 0.720, x22=0.103, both P > 0.05; selenium treatment group:x12=0.023, x22=0.340, both P > 0.05). Overall, the positive ratios were not statistically significant between the two groups(x12=0.001, x22=0.366, both P > 0.05).
    Conclusion Additional treatment with selenium after 131I therapy for Graves disease can effectively decrease the TPOAb levels, especially for patients with high initial TPOAb levels.

     

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