机构地区:[1]中国医学科学院北京协和医学院研究生院卫生部中目友好医院内分泌代谢中心,北京100029 [2]北京大学第一医院内分泌科 [3]北京大学人民医院内分泌科 [4]上海交通大学附属瑞金医院内分泌代谢科 [5]上海交通大学附属上海市第六人民医院内分泌科 [6]第二军医大学附属长海医院内分泌科 [7]中山大学附属第一医院内分泌科 [8]浙江大学附属第一医院内分泌科 [9]中南大学湘雅医学院附属第二医院内分泌科 [10]西安交通大学医学院第一附属医院内分泌科 [11]中国医科大学附属第一医院内分泌科 [12]华中科技大学同济医学院附属协和医院内分泌科 [13]解放军第三〇六医院内分泌科 [14]中国医学科学院北京协和医院内分泌科 [15]中山大学第二附属医院内分泌科 [16]中南大学湘雅医学院附属第一医院内分泌科 [17]第四军医大学西京医院内分泌科 [18]昆明医学院附属第一医院内分泌科 [19]云南省人民医院内分泌科 [20]华中科技大学同济医学院附属同济医院内分泌科 [21]浙江大学附属第二医院内分泌科
出 处:《中华医学杂志》2009年第16期1117-1121,共5页National Medical Journal of China
摘 要:目的研究中国新诊断超重肥胖及非肥胖2型糖尿病患者胰岛素分泌功能(IS)、胰岛素抵抗状况(IR)的差别及降血糖药物干预对其影响,为临床治疗提供依据。方法对408例新诊断2型糖尿病患者和40例糖耐量正常人测量身高、体重;行口服葡萄糖耐量试验(OGTT)测定0、30、60、120min血糖、胰岛素。糖尿病患者按空腹血糖(FBG)水平(DMI:FBG〈6.9mmol/L;DM2:6.9mmol/L≤FBG〈8.3mmol/L;DM3:8.3mmol/L≤FBG〈9.7mmol/L;DM4:FBG≥9.7mmol/L)分为4组,每组内以体重指数(BMI)为界分为两个亚组(BMI〈24、≥24),比较两亚组IR和IS。93例FBG〉8.3mmol/L者应用格列齐特(达美康)缓释片进行干预治疗1~3个月,血糖达标后重复OGTT并计算干预后的IR及IS,比较治疗前后的变化。结果(1)BMI≥24亚组与正常组相比,存在高真胰岛素血症;(2)在每一组糖尿病患者中,BMI≥24亚组的胰岛素敏感性更差,但是IS都优于相应的BMI〈24亚组;(3)降血糖药物干预后BMI〈24组胰岛素敏感性变化优于BMI≥24组(-4.7±0.9比-5.5±1.4,P〈0.05),而干预后IS的变化(A130/AG30)BMI≥24组优于BMI〈24组(1.37±0.16比0.50±0.19,P〈0.05)。结论新诊断2型糖尿病患者的胰岛素抵抗及胰岛素分泌功能随FBG升高而恶化,这种双重恶化的程度在血糖水平相似的超重肥胖及非肥胖患者明显不同;改善高糖毒性可使超重肥胖者胰岛素分泌功能显著恢复,而非肥胖患者胰岛素敏感性恢复更优。Objective To investigate insulin secretion function and insulin resistance in Chinese newly diagnosed type 2 diabetes ( obese and non-obese patients) in order to provide evidence for clinical treatment. Methods A total of 408 newly diagnosed type 2 diabetes and 40 normal controls were recruited. Height and weight were measured. Insulin and glucose of 0, 30, 60 and 120 min during oral glucose tolerance test were examined. The patients with fasting glucose level greater than 8. 3 mmol/L were treated with gliclazide for 1 - 3 months. After normalization of plasma glucose levels for more than 2 weeks, this medication was withdrawn for 48 hours then OGTT repeated to assess IR and IS. Results The patients were divided into four groups based on fasting plasma glucose ( DM1 : FBG 〈6. 9 retool/L; DM2: 6. 9 mmol/L≤ FBG 〈 8. 3 mmol/L ; DM3 : 8. 3 mmol/L ≤ FBG 〈 9. 7 mmol/L ; DM4 : FBG ≥ 9.7 mmol/L). Each group was further stratified to subgroups by cut-off point of BMI = 24 kg/m^2. The insulin sensitivity and insulin secretion function were compared between the subgroups. ( 1 ) True insulin level in BMI ≥ 24 ( FBG 〈 6.9 mmol/L) subgroups were higher than controls ( 3.5 ± 0. 5 vs 3.2 ± 0. 6 natural logarithm) ( P 〈 0. 05 ). (2) In BMI≥24 subgroups, the insulin sensitivity was even worse than BMI 〈 24 groups, but the insulin secretion function was better at the same FBG level. ( 3 ) After intervention, the change of insulin sensitivity in BMI 〈24 groups was better than BMI≥24 groups ( -4. 7 ±0. 9 vs -5.5 ± 1.4 natural logarithm) (P 〈 0. 05 ) ; but the change of insulin secretion function in BMI 〈 24 groups was worse. Conclusions ( 1 ) In newly diagnostic type 2 diabetes, insulin sensitivity and insulin secretion function decreased with the rising FBG, but they were different between the obese and non-obese groups. (2) Insulin secretion function recovered better in the obese group when ameliorating glucose toxicity.
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