肥胖儿童良性黑棘皮病患者血中胰岛素及红细胞胰岛素受体的测定

The Levels of Plasma Insulin and Erythrocyte Insulin Receptors in Children with Acanthosis Nigricans Associated with Obesity

目的探讨胰岛素抵抗在肥胖儿童良性黑棘皮病发病中的作用及其与胰岛素受体数量的关系。方法检测17例良性黑棘皮病肥胖儿童、16例单纯肥胖儿童及15例正常儿童对照的空腹血浆胰岛素及红细胞胰岛素受体水平。结果肥胖儿童良性黑棘皮病组空腹胰岛素水平(59.78±13.13mIU/L)明显高于单纯肥胖组(20.96±3.44mIU/L)和正常儿童对照组(11.34±2.62mIU/L)(P<0.01),而红细胞胰岛素高、低亲和力受体数量(74.44±8.43,854.73±87.96)却明显低于单纯肥胖组(120.21±16.45,2594.92±118.32)和正常儿童对照组(307.81±17.58,4074.90±263.59)(P<0.01)。结论胰岛素受体数量降低导致胰岛素抵抗可能是肥胖儿童良性黑棘皮病的病因之一。

Objective To investigate the role of insulin resistance in the pathogenesis of childhood benign acanthosis nigricans with obesity and the relationship between insulin resistance and insulin receptors.Methods Fasting plasma insulin and the amount of erythrocyte insulin receptors were determined among17children with benign acanthosis nigricans with obesity(CBANO),with16cases of simple adiposis and15healthy children as controls.Results The levels of plasma insulin were higher in CBANO than those in sim-ple adiposis and healthy controls;however,the amount of erythrocyte insulin receptors was lower in CBANO than that in simple adiposis and healthy controls.Conclusion Insulin resistance caused by diminished in-sulin receptors may play an important role in pathogenesis of CBANO.