自身免疫性甲状腺疾病患者血清瘦素水平观察

目的 观察自身免疫性甲状腺疾病(AITD)中Graves病(GD)和桥本氏甲状腺炎(HT)患者血清瘦素水平,探讨瘦素在AITD发病机制中的免疫学作用.方法 102例体质量指数(BMI)和年龄等因素相匹配的女性AITD初诊患者,根据临床表现及实验室检查结果分为3组:GD甲亢组,HT甲低组,亚甲低组,另设性别、年龄、BMI匹配的对照组.免疫化学发光法检测血清FT3、FT4、sTSH,ELISA法检测血清瘦素水平.结果 GD甲亢组血清FT3、FT4水平(19.74±15.39)、(78.25±58.68)pmol/L]明显高于对照组(4.87±0.25)、(15.96±3.15)pmol/L],而sTSH(0.15±0.08)mU/L]和瘦素水平(8.73±1.92)μg/L]明显低于对照组(3.81±0.19)mU/L、(12.38±3.51)μg/L].组间比较差异均有统计学意义(P＜0.01或＜0.05).而HT甲低组兀FT3、FT4水平(3.36±0.26)、(6.95±3.29)pmol/L]均明显低于对照组(P＜0.05),而sTSH45.48±35.83)mU/L]和瘦素水平(17.17±3.82)μg/L]明显高于对照组(P＜0.01或＜0.05).亚甲低组FT3、FT4水平(4.67±0.60)、(14.87±2.14)pmol/L]与对照组比较差异无统计学意义(P＞0.05),而sTSH(13.67土8.66)mU/L]和瘦素水平(16.25±3.67)μg/L]均明显高于对照组(P＜0.01或＜0.05).结论 瘦素在AITD发病机制中可能具有一定的免疫调节作用,而AITD患者瘦素水平也可能受sTSH影响.

Levels of serum leptin in the autoimmune thyroid diseases

Objective To observe the levels of serum leptin in Gaves disease(GD)and thyroiditis(HT)Datients and to discuss the immunological role of leptin in the pathogenesis of autoimmune thyroid disease(AITD).Methods 102 newly diagnosed female AITD patients were divided into 3 groups:GD hyperthyroid group,HT hypothyroid group and subclinical hypothyroid group.Age,sex and BMI-matched 27 euthyroid,healthy subjects served as controis.The levels of FT3,FT4 and sTSH were determined by immunofluorometrie assay.ELISA kit was aDplied to measure the levels of serum leptin.Results Serum FT3 and FT4(19.74±15.39),(78.25±58.68)pmol/L]levels of GD hyperthyroid patients were obviously higher than those of the controls(4.87±0.25),(15.96±3.15)pmol/L,P＜0.01],but serum sTSH and leptin levels(0.15±0.08)mU/L,(8.73±1.92)μg/L]were obviously lower than those of the controls(3.81±0.19)mU/L,(12.38±3.51)μg/L,P＜0.01or＜0.05].Serum FT3 and FT4(3.36±0.26),(6.95±3.29)pmol/L]levels of HT hypothyroid patients were obviously lower than those of the controls(P＜0.05),but serum sTSH and leptin levels(45.48±35.83)mU/L,(17.17±3.82)μg/L]were obviously higher than those of the controls(P＜0.01 or＜0.05).Serum FT3 and FT4(4.67±0.60),(14.87±2.14)pmol/L]levels of subclinical hypothyroid patients had not statistical difference comparing with those of the controls(P＞0.05),but serum sTSH and leptin levels(13.67±8.66)mU/L,(16.25±3.67)μg/L]were obviously higher than those of the controls(P＜0.01 or＜0.05).Conclusions Leptin might have an immuoregulation role in the pathogenesis of AITD.In addition,serum levels of leptin in AITD is also influenced by many other related hormones.