结节性甲状腺肿患者血清胰岛素样生长因子-1水平与摄131碘率相关性研究

目的 研究结节性甲状腺肿患者血清胰岛素样生长因子-1(IGF-1)水平与甲状腺摄131碘(131Ⅰ)率的相关性,为临床鉴别甲状腺结节的性质寻找更简捷,安全的方法 .方法 运用放射核素扫描技术检测甲状腺摄131Ⅰ率,据此将患者分为热结节组,冷结节组,并设对照组,放射免疫分析法检测各组血清IGF-1,FT3,FT4,sTSH水平,分析其与摄131Ⅰ率的相关性.结果 热结节组患者血清IGF-1,FT3,FT4水平(315.86±22.74)μg/L,(9.95±5.62),(67.27±27.31)ng/L]明显高于对照组(256.13±39.85)μg/L,(2.80±1.30),(13.5l±5.50)ng/L],摄131Ⅰ率(0.64±0.17)明显高于对照组(0.35±0.15),血清sTSH水平(0.35±0.03)mU/L]明显低于对照组(2.71±1.17)mU/L].差异均有统计学意义(P＜0.01).而冷结节组患者血清IGF-1,FT3,FT4,sTSH水平(263.17±30.23)μg/L,(2.89±0.98),(14.23±2.84)ng/L,(2.81±0.42)mU/L]与对照组比较差异无统计学意义(P＞0.05).热结节组IGF-1水平与甲状腺摄131Ⅰ率呈正相关(r＝0.835,P＜0.01),与sTSH水平呈轻度负相关(r＝-0.326,P＜0.05).结论 结节性甲状腺肿患者血清IGF-1水平与甲状腺摄131Ⅰ率可能有一定的相天性.

Research on the correlation between serum insulin-like growth factor-1 level and the uII absorbance in patients with strunm nodosa

Objective To investigate the correlation between serum insulin-like growth factor-1(IGF-1)level and the 131Ⅰahsorbante of thyroid nodule in patients with struma nadosa,to search for simpler and safer methods for differentiating thyroid nodule.Methods Detecting the 131Ⅰ absorbance of thyroid nodule by radioisotope scanning.then the patients were divided into warm and cold nodule groups,and the normal control group was also set up;the levels of IGF-1,FT3,FT4,sTSH were detected in serum of patients with struma nadosa by radio immunoassay,then the correlation between these data and the 131Ⅰabsorbance of thyroid nodule was analyzed.Results In the patients with warnl nodule,the level of serum IGF-1,FT3,FT4 and the 131Ⅰ absorbance of thyroid nodule(315.86±22.74)μg/L,(9.95±5.62),(67.27±27.31)ng/L,0.64±0.17]were increased obviously when compared with the control group (256.13±39.85)μg/L,(2.80±1.30),(13.51±5.50)ng/L,0.35±0.15],but the sTSH(0.35±0.03)mU/L]went down significantly than the control group(2.71±1.17)mU/L],the difference being statistically significant(P＜0.01).In the patients with cold nodule,the level of serum IGF-1,FT3,FT4,sTSH(263.17±30.23)μg/L,(2.89±0.98),(14.23±2.84)ng/L,(2.81±0.42)mU/L] had no significant difference compared with the control group(P＞0.05).The level of serum IGF-1 was positively correlated with the 131Ⅰ absorbance of thyroid nodule(r＝0.835,P＜0.01),but negtively correlated with sTSH(r＝-0.326,P＜0.05)in the patients with warm nodule.Conclusion The level of sernm IGF-1 is closely correlated with the 131Ⅰ absorbance of thyroid nodule in patients with struma nadosa.