ABSTRACT
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.
ABSTRACT
<p><b>OBJECTIVE</b>To study the anti-mutation action of acupuncture and moxibustion.</p><p><b>METHODS</b>Mice were randomly divided into 6 groups, group 1 (normal control group), group 2 (positive control group), group 3 (prevention group I), group 4 (prevention group II ), group 5 (treatment group I) and group 6 (treatment group II). The mice in the group 2-6 were treated by cyclophosphamide (ip, 50 mg/kg body weight), and in the 3'-6 groups were given acupuncture at "Zusanli" (ST 36) and moxibustion at "Guanyuan" (CV 4). At the end of experiment, all the mice were decapitated and chromosome aberration rate and sister chromatid exchange rate of bone marrow cells were investigated.</p><p><b>RESULTS</b>The chromosome aberration rate and the sister chromatid exchange rate of bone marrow cells in the positive control group increased significantly as compared with the normal control group, while they decreased significantly in the group 3, 4, 5, 6 as compared with the positive control group (P < 0.01).</p><p><b>CONCLUSION</b>Acupuncture and moxibustion have anti-mutation action, inhibiting the increase of chromosome aberrations and sister chromatid exchange of bone marrow cells in mice induced by cyclophosphamide.</p>