氢化可的松致肾虚证小鼠模型的建立及相关指标的评价

摘要

目的 建立氢化可的松致肾阳虚、肾阴虚小鼠模型,并探讨其相关评价指标.方法 采用氢化可的松灌胃建立肾阳虚及肾阴虚小鼠模型;观察肾阳虚、肾阴虚模型小鼠生存状态,测定各组模型小鼠体重变化;采用放射免疫法检测HPA轴中促肾上腺皮质激素(ACTH)、皮质醇(Cor.)、HPT轴中甲状腺激素(TSH)、三碘甲腺原氨酸(T3)、甲状腺素(T4)、HPG轴中促卵泡素(FSH)、雌二醇(E2)、睾酮(T)含量.结果 肾阳虚、肾阴虚模型小鼠体重均下降,肾阳虚模型小鼠血清ACTH、Cor.、TSH、T3、T4水平降低,血清FSH、E2、T水平升高,且差异均有显著性(P<0.01);而肾阴虚模型则反之.结论 肾虚小鼠内分泌系统中ACTH、Cor.、TSH、T3、T4、FSH、E2、T各激素水平均发生了改变,其中Cor.可作为评价糖皮质激素法建立肾虚模型的重要指标.%Objective To establish a mouse model of kidney-yin and kidney?yang deficiency after oral administra?tion of hydrocortisone, and to explore the related evaluation factors. Methods The model was established by oral adminis?tration of hydrocortisone to induce kidney?yin and kidney?yang deficiency in mice. The survival and body weight of the mice were observed. The serum content of adrenal cortical hormone ( ACTH) , cortisol ( Cor. ) in the hypothalamic?pituitary?ad?renal (HPA) axis, and thyroid stimulating hormone (TSH), triiodothyronine (T3), thyrox (T4) in the hypothalamic?pi?tuitary?thyroid (HPT) axis, follicle?stimulating hormone (FSH), estradiol (E2), testosterone (T) in the hypothalamic?pituitary?gonadal ( HPG) axis were determined by radioimmunoassay. Results The body weight of kidney?yin and kidney?yang mice were decreased, the serum ACTH, Cor, TSH, T3, T4 contents were decreased, the serum FSH, E2, T contents were increased in the kidney?yang deficiency model mce ( P<0. 01 ) , and those parameters in the kidney?yin deficiency model mice were changed in opposite direction. Conclusions It is found that the hormone levels of ACTH, Cor, TSH, T3, T4, FSH, E2 and T in kidney deficiency mice are changed, and cortisol can be used as an important index to evaluate the model of kidney deficiency induced by glucocorticoid.