2型糖尿病患者下丘脑-垂体-肾上腺轴功能变化的临床意义

目的 探讨2型糖尿病患者下丘脑-垂体-肾上腺(HPA)轴功能变化的临床意义.方法 对127例2型糖尿病患者行口服糖耐量试验,并计算胰岛素敏感指数(ISI)、胰岛素抵抗指数(HOMA-IR)、葡萄糖及胰岛素曲线下面积(AUCG,AUCI),同时检测患者血、尿皮质醇,血促肾上腺皮质激素(ACTH)等,将所得结果与65例健康体检正常者(对照组)进行比较.结果 (1)2型糖尿病患者中HPA轴功能紊乱率为22.8%(29/127),对照组为10.8%(7/65).2型糖尿病患者多项HPA轴指标,包括8:00和16:00血皮质醇、日平均血皮质醇及尿游离皮质醇均高于对照组,差异均有统计学意义(P＜0.05).(2)伴HPA轴功能紊乱的2型糖尿病患者空腹血糖(FPG)、糖负荷2 h后血糖(2 h PPG)及AUCG均高于不伴HPA轴功能紊乱的患者(P＜0.05).剔除性别、年龄、BMI及腰围的影响,2型糖尿病患者8:00、16:00和24:00血皮质醇、日平均血皮质醇及尿游离皮质醇与FPG、2 h PPG及AUCG均呈正相关(P＜0.05);多元逐步回归分析提示AUCG是影响8:00、16:00血皮质醇及日平均血皮质醇的独立相关因素;2 h PPG与24:00血皮质醇及尿游离皮质醇独立相关.结论 2型糖尿病患者HPA轴功能紊乱的患病率升高,2型糖尿病患者血糖升高与HPA轴功能紊乱互为因果.

Clinical Significance of the Hypothalamic-Pituitary-Adrenal Axis Abnormalities in Patients with Type 2 Diabetes Mellitus

Objective The purpose of the study is to look into the clinical significance of hypothalamo-pituitary-adrenal(HPA) axis abnormalities in patients with type 2 diabetes mellitus.Methods Oral glucose tolerance test(OGTT) was performed in 127 type 2 diabetic patients with the insulin index(ISI),homeostatic model assessment-insulin resistance(HOMA-IR),area under the curve of glucose(AUCG) and insulin(AUCI) calculated.At the same time,plasma cortisol,urinary cortisol,and plasma ACTH were detected in these patient...