糖尿病患者血清可溶性细胞间粘附分子-1和可溶性血管细胞粘附分子-1变化的研究

目的　研究糖尿病患者血清可溶性细胞间粘附分子 - 1(s ICAM- 1)和可溶性血管细胞粘附分子 - 1(s VCAM- 1)水平的变化。方法　应用酶联免疫吸附法 (EL ISA)检测了 18例 1型糖尿病和 47例 2型糖尿病患者及 2 0例健康对照者的血清 s ICAM- 1、s VCAM- 1以及甘油三酯 (TG)水平。结果　 1血清 s ICAM- 1和 s VCAM- 1水平 ,1型、2型糖尿病患者组均显著高于健康对照组 (P<0 .0 5～ 0 .0 1) ,2型糖尿病有微血管病变组又高于无微血管病变组 (P<0 .0 5～ 0 .0 1) ,1型糖尿病与 2型糖尿病组之间无显著性差异 ;2血清 s VCAM- 1水平 ,2型糖尿病的高甘油三酯血症组 (A组 )、高甘油三酯血症合并高血压组 (B组 )高于单纯高血压组 (C组 )和甘油三酯、血压正常组 (D组 ) (P均 <0 .0 5 ) ;3 1型糖尿病和 2型糖尿病患者血清 s ICAM- 1和 s VCAM- 1之间均呈正相关关系 (r=0 .83、0 .5 3,P均 <0 .0 1)。结论　 12型糖尿病患者血清 s VCAM- 1升高与高甘油三酯血症有关 ;2血清 s ICAM- 1和 s VCAM- 1参与了糖尿病微血管病变的发病过程 ,并可作为糖尿病病情变化的监测指标     

血清可溶性血管细胞粘附分子1和选择素E与2型糖尿病血管病变的关系

为研究可溶性血管细胞粘附分子 1和选择素E在 2型糖尿病患者血管病变中的变化 ,应用酶联免疫吸附法检测 2型糖尿病组 (分为并发大血管病变组、微血管病变组和无微血管病变组 )、糖耐量受损组、空腹血糖受损组和正常对照组的血管细胞粘附分子 1和选择素E水平 ,并测定糖代谢指标和尿微量白蛋白水平。结果发现 ,2型糖尿病组和糖耐量受损组血管细胞粘附分子 1和选择素E水平显著高于对照组 (P <0 .0 1) ;糖尿病伴大血管病变组血管细胞粘附分子 1和选择素E显著高于微血管病变组 ,伴微血管病变组高于无微血管病变组 (P <0 .0 1) ;空腹血糖受损组与对照组差异无显著性 ;在不同种类数量的微血管病变组间 ,血管细胞粘附分子 1和选择素E差异存在显著性 (P <0 .0 5 ) ;血管细胞粘附分子 1和选择素E存在相关性 (γ =0 .4 2 ,P <0 .0 5 ) ;选择素E与糖代血红蛋白存在相关性 (γ =0 .5 9,P <0 .0 1)。以上提示 ,血管细胞粘附分子 1和选择素E可能参与了 2型糖尿病血管病变的发生和发展 ,检测血清血管细胞粘附分子 1和选择素E水平在一定程度上可反映 2型糖尿病血管病变的情况。     

2型糖尿病患者外周血粘附分子变化及甘糖酯干预治疗的初步研究

为研究 2型糖尿病患者血清中可溶性细胞间粘附分子 - 1( s ICAM- 1)、血管细胞粘附分子 - 1( s VCAM-1)及单个核细胞表面细胞间粘附分子 - 1( ICAM- 1)、血小板表面颗粒膜蛋白 - 14 0 ( GMP- 14 0 )与大血管病变间的关系 ,并观察甘糖酯的疗效 ,对 4 5例 2型糖尿病患者及 2 0例正常对照者用 EL ISA法测定其 s ICAM- 1及 s VCAM-1,流式细胞仪测定 ICAM- 1及 GMP- 14 0。 2型糖尿病患者分为有大血管病变组 ( 19例 )和无大血管病变组 ( 2 6例 ) ,部分患者经胰岛素或胰岛素 甘糖酯治疗 2周后复查。结果显示 ,2型糖尿病患者 s ICAM- 1、s VCAM- 1、I-CAM- 1、GMP- 14 0显著高于正常对照组 ,其中 s ICAM- 1、s VCAM- 1、ICAM- 1有大血管病变组显著高于无大血管病变组。胰岛素治疗后上述粘附分子无明显变化 ,胰岛素 甘糖酯治疗能够显著降低 s VCAM- 1、ICAM- 1、GMP-14 0 ( P<0 .0 5 )     

2型糖尿病患者可溶性细胞间粘附分子-1、E-选择素水平的变化

目的　研究 2型糖尿病患者血清可溶性细胞间粘附分子 1(sICAM 1)和可溶性E 选择素 (sE selectin)水平的变化。方法　应用酶联免疫吸附法测定 67例 2型糖尿病患者和 2 0例健康对照组的sICAM 1和sE selectin以及甘油三酯 (TG)水平。结果　 ( 1) 2型糖尿病组血清sICAM 1和sE selectin水平显著高于对照组 (P <0 .0 1) ,2型糖尿病有微血管病变组、有大血管病变组均高于无血管病变组 (P值均 <0 .0 5 ) ;( 2 ) 2型糖尿病患者血清sICAM 1和sE selectin之间呈正相关关系 (r =0 .9985 ,P <0 .0 1) ;( 3 )血清sICAM 1水平和TG之间呈正相关关系 (r =0 .415 ,P <0 .0 5 )。结论　血清sICAM 1和sE selectin参与了糖尿病大血管和微血管病变的发病过程 ,并可作为糖尿病病情变化的监测指标 ,2型糖尿病患者血清sICAM 1升高与高甘油三酯血症有关     

格列美脲降低2型糖尿病患者血清E-选择素和血管细胞粘附分子1水平

了解 2型糖尿病患者血清可溶性粘附分子的水平 ,以及格列美脲降糖治疗后其变化情况。采用酶联免疫吸附法测定 2型糖尿病患者格列美脲治疗前后与对照组血清E 选择素、细胞间粘附分子 1和血管细胞粘附分子1的浓度。结果显示 2型糖尿病患者治疗前血清E 选择素、细胞间粘附分子 1和血管细胞粘附分子 1的水平明显高于对照组 (P <0 .0 0 1)。格列美脲治疗 8周后患者血清E 选择素和血管细胞粘附分子 1的水平均降低 (P <0 .0 5 ) ,但细胞间粘附分子 1与治疗前比较无变化。格列美脲降糖治疗可能有助于改善糖尿病状态下的内皮细胞损伤和激活     

急性冠状动脉综合征患者冠状动脉循环粘附分子的变化

目的探讨急性冠状动脉综合征患者冠状动脉循环血浆细胞间粘附分子1和血管细胞粘附分子1水平变化的临床意义.方法应用酶联免疫吸附法检测65例冠心病患者(30例急性冠状动脉综合征,35例稳定型心绞痛)及27例对照者冠状动脉循环(冠状静脉窦-主动脉根部)血浆细胞间粘附分子1和血管细胞粘附分子1水平,比较其水平变化与不同冠心病类型之间的关系.结果急性冠状动脉综合征组冠状静脉窦和主动脉根部血浆细胞间粘附分子l和血管细胞粘附分子1水平明显高于稳定型心绞痛组和对照组(P＜0.05);急性冠状动脉综合征组冠状动脉循环(冠状静脉窦与主动脉根部的差值)血浆细胞间粘附分子1和血管细胞粘附分子1水平明显高于稳定型心绞痛组和对照组(P＜0.01).稳定型心绞痛组和对照组冠状静脉窦、主动脉根部和冠状动脉循环血浆细胞间粘附分子1和血管细胞粘附分子1水平无明显差别(P＞0.05).血浆细胞间粘附分子1和血管细胞粘附分子1水平与冠状动脉病变受累支数无关.结论急性冠状动脉综合征时血浆细胞间粘附分子1和血管细胞粘附分子1浓度显著升高,冠状动脉循环血浆细胞间粘附分子1和血管细胞粘附分子1变化反映冠状动脉炎症活动程度,细胞粘附分子参与斑块的不稳定.     

细胞间粘附分子1和C反应蛋白与2型糖尿病并发动脉粥样硬化的关系

目的观察血清可溶性细胞间粘附分子1、高敏C反应蛋白与2型糖尿病并发动脉粥样硬化的关系。方法在2型糖尿病患者（伴或不伴动脉粥样硬化）和正常对照组分别用免疫散射比浊法、酶联免疫吸附法测定血清可溶性细胞间粘附分子1、高敏C反应蛋白水平，并用多普勒超声诊断仪检测颈动脉内膜中膜厚度及斑块形成情况。结果2型糖尿病患者血清可溶性细胞间粘附分子1、高敏C反应蛋白水平较正常对照组明显增高（P〈0．01）；2型糖尿病患者伴动脉粥样硬化组较2型糖尿病患者不伴动脉粥样硬化组血清可溶性细胞间粘附分子1水平明显增高（P〈0．01），而高敏C反应蛋白水平差异无显著性。2型糖尿病患者发生动脉粥样硬化与血清可溶性细胞间粘附分子1呈正相关。结论可溶性细胞问粘附分子1对糖尿病患者动脉粥样硬化的发生有特殊的作用；高敏C反应蛋白不是2型糖尿病患者发生动脉粥样硬化的独立危险因素。     

2型糖尿病患者血清C反应蛋白与可溶性细胞粘附分子水平变化的临床意义

目的　探讨 2型糖尿病患者血清 C反应蛋白 (CRP)、可溶性细胞粘附分子水平变化及其与血管并发症的关系。方法　采用 EL ISA法检测 12 7例 2型糖尿病患者 (糖尿病组 )血清 CRP、可溶性血管细胞间粘附分子 - 1(s VCAM- 1)和可溶性细胞间粘附分子 - 1(s ICAM- 1)水平 ,并与 6 4例健康人 (对照组 )进行比较。结果　糖尿病组血清 CRP、s ICAM- 1、s VCAM- 1均明显高于对照组 ,有极显著性差异 (P <0 .0 1) ;有血管并发症者CRP、s ICAM- 1、s VCAM- 1明显高于无血管并发症者 (P<0 .0 1) ,大血管并发症、微血管并发症和大血管与微血管并发症并存者各指标比较差异均有显著性 (P <0 .0 1)。糖尿病组血清 CRP水平与 s ICAM- 1、s VCAM- 1水平变化呈正相关 (r =0 .5 76～ 0 .6 2 4 ,P <0 .0 1)。结论　血清 CRP、 s ICAM- 1、 s VCAM- 1相互作用、可能参与了糖尿病的发生与发展 ,并与血管并发症的发生与发展有密切关系     

急性冠状动脉综合征患者血清可溶性细胞间粘附分子1和妊娠相关血浆蛋白A的变化

目的观察急性冠状动脉综合征患者血清可溶性细胞间粘附分子1、妊娠相关血浆蛋白A水平的变化,结合冠状动脉造影结果探讨其临床意义。方法用酶联免疫吸附法检测46例急性冠状动脉综合征患者(其中急性心肌梗死20例,不稳定型心绞痛26例)、22例稳定型心绞痛患者和20例冠状动脉造影阴性对照者血清可溶性细胞间粘附分子1、妊娠相关血浆蛋白A水平,分析冠状动脉病变程度与可溶性细胞间粘附分子1、妊娠相关血浆蛋白A浓度的关系。结果急性冠状动脉综合征组血清可溶性细胞间粘附分子1和妊娠相关血浆蛋白A浓度较稳定型心绞痛组、对照组显著升高(P<0.05或P<0.01)。冠状动脉造影为单支、双支、三支病变者,其可溶性细胞间粘附分子1、妊娠相关血浆蛋白A浓度依次增高。相关分析发现,急性心肌梗死、不稳定型心绞痛患者血清可溶性细胞间粘附分子1浓度与妊娠相关血浆蛋白A浓度显著正相关(r=0.737和r=0.758,P<0.001)。结论急性冠状动脉综合征患者可溶性细胞间粘附分子1、妊娠相关血浆蛋白A升高,二者可能是动脉粥样斑块不稳定的标志。     

糖尿病肾病患者血清细胞间粘附分子与C反应蛋白检测

目的 探讨2型糖尿病肾病患者血清可溶性细胞间粘附分子-1（sICAM-1）和C-反应蛋白（CRP）的水平。方法 采用ELISA法对糖尿病肾病和糖尿病无肾病患者及正常人的血清CRP和sICAM-1的表达进行检测。结果 糖尿病肾病患者血清中sICAM-1和CRP的水平高于糖尿病无肾病患者及正常对照组。结论 sICAM-1和CRP的高表达参与了糖尿病肾病微血管病变的损伤过程。     

2型糖尿病患者糖皮质激素变化的临床研究

目的　探讨 2型糖尿病患者糖皮质激素分泌变化的规律及其临床意义。方法　测定 2 2名健康人 (对照组 )和 6 3例 2型糖尿病患者 (其中 39例 2型糖尿病无微血管病变、2 4例 2型糖尿病并微血管病变 )的血皮质醇 (F) ( 8Am、4Pm )、2 4h尿游离皮质醇 (UFC)及血糖 (FBG、2hPG)、HbA1c、TC和TG。结果　 2型糖尿病组的血F( 8Am、4Pm)及 2 4hUFC与对照组比较 ,差异有显著性 (P <0 .0 5 )。糖尿病有微血管病变组的 2 4hUFC的排量高于无微血管病变组 (P <0 .0 5 )。糖尿病组 2 4hUFC与HbA1c呈正相关 (r =0 .2 76 ,P <0 .0 5 ) ,与病程呈正相关 (r =0 .72 4,P <0 .0 1) ,与 2 4h尿微量白蛋白 (UAP)呈正相关 (r =0 .486 ,P <0 .0 1) ,与TG呈正相关 (r= 0 .42 1,P <0 .0 1)。结论　 2型糖尿病患者糖皮质激素水平增高 ,加重了糖代谢和脂代谢紊乱 ,使糖尿病患者的病情恶化 ,最终促使糖尿病并发症的发生。     

Neutrophil surface expression of CD11b and CD62L in diabetic microangiopathy

The aims of the study are (1) assessment of cell surface expression of adhesion molecules CD11b and CD62L on peripheral blood neutrophils in patients with type 2 diabetes and microangiopathy; (2) analysis of serum levels of soluble adhesion molecules: E-selectin (sE-selectin), soluble intercellular adhesion molecule-1 (sICAM-1), soluble vascular cell adhesion molecule-1 (sVCAM-1) and von Willebrand factor (vWF) and; (3) evaluation of systemic inflammatory markers like interleukin-6 (IL-6), soluble interleukin-6 receptor (IL-6Rs), high sensitivity C-reactive protein (hsCRP) and fibrinogen. Thirty patients with type 2 diabetes and microangiopathy were enrolled in the study. The study group was compared to 22 patients with type 2 diabetes without microangiopathic compliations. The control group included 20 healthy volunteers. Flow cytometry was used to analyse surface expression of adhesion molecules. Both inflammatory markers and soluble adhesion molecules were determined by immunoenzymatic assay. A significant increase in neutrophil surface CD11b expression (P < 0.01) as well as decrease in surface CD62L expression (P < 0.01) were observed in the group with diabetic microangiopathy in comparison with diabetic group without microangiopathic complications and healthy controls. Moreover, significantly higher concentrations of sICAM-1 (P < 0.05), sVCAM-1 (P < 0.05), sE-selectin (P < 0.05), vWF (P < 0.01), hsCRP (P < 0.01), IL-6 (P < 0.01) and fibrinogen (P < 0.001) were also found in patients with microangiopathy in comparison with the control group. IL-6Rs concentrations did not significantly vary between groups. We concluded (1) diabetic microangiopathy is accompanied by increase in CD11b expression and decrease in CD62L expression on peripheral blood neutrophils; (2) in diabetic microangiopathy rise in CD11b expression indicates neutrophil activation and intensified adhesion; (3) the development of diabetic microangiopathy is accompanied by an increase in soluble adhesion molecules and inflammatory markers concentrations in the blood.     

Comparison of serum concentrations of soluble adhesion molecules in diabetic microangiopathy and macroangiopathy.

AIMS: To clarify the correlation between serum concentrations of soluble adhesion molecules and diabetic microangiopathy or macroangiopathy in patients with Type 2 diabetes. METHODS: Patients with diabetic retinopathy and intima-media thickness of common carotid artery (CCA-IMT) < 1.1 mm were classified as the microangiopathy group (n = 62). Patients with CCA-IMT > or = 1.1 mm and without retinopathy were classified as the macroangiopathy group (n = 95). Patients with CCA-IMT < 0.9 mm and without retinopathy were assigned to the no complications group (n = 139). Clinical characteristics and soluble intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), and E-selectin levels were compared between the groups. RESULTS: Patients with microangiopathy had a significantly longer duration of diabetes, were hypertensive and more likely to have a positive family history of diabetes than the control group. Patients with macroangiopathy were more likely to be smokers, hypertensive, and have a family history of hypertension. Soluble ICAM-1, VCAM-1, and E-selectin levels were significantly higher in the microangiopathy group than in the control group. Soluble VCAM-1 and E-selectin levels, but not ICAM-1 levels, were significantly elevated in the macroangiopathy group. These results were unchanged after adjustment for age, sex, duration of diabetes, blood pressure, HbA1c, HDL-cholesterol, and smoking status. CONCLUSIONS: Our results suggest that soluble adhesion molecules are related to both diabetic micro- and macroangiopathy. The relative contributions of adhesion molecules may be greater in the former than latter patients with Type 2 diabetes.     

2型糖尿病大血管病变与白细胞表面分化抗原40配体、细胞间黏附分子1的相关性研究

探讨白细胞表面分化抗原40配体（CD40L）、细胞间黏附分子1（ICAM-1）与T2DM大血管病变的关系。采用ELISA检测31例健康人（NC组）、47例T2DM患者（DM组）和51例T2DM并大血管病变患者（DM＋MAP组）血浆CD40L、ICAM-1。三组CD40L和ICAM-1均依次增高,组间差异有统计学意义,且血浆CD40L与ICAM-1呈正相关。提示血浆CD40L、ICAM-1表达的增加与T2DM患者大血管病变的发生有关。     

Circulating intercellular adhesion molecule-1, vascular cell adhesion molecule-1, and E-selectin in patients with type 2 diabetes mellitus

Serum levels of intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1) and E-selectin in patients with type 2 diabetes mellitus (n = 64) and control subjects (n = 40) were studied. Serum ICAM-1 concentrations in diabetic patients were significantly higher than those of control subjects (378.2 +/- 70.0 versus 220.4 +/- 31.8 ng/ml, P < 0.01). By multiple regression analysis, hemoglobin A1c was independently associated with serum ICAM-1 concentration in patients with diabetes. The serum VCAM-1 concentration of diabetic patients with macroangiopathy was higher than those of patients without macroangiopathy and of control subjects (806.9 + 276.5 versus 639.0 +/- 146.0 (P < 0.01), and 652.1 +/- 146.9 ng/ml (P < 0.01), respectively). There was no difference in serum E-selectin concentration between diabetic patients with or without macroangiopathy and normal control subjects. These results suggest that adhesion molecules may contribute to the development of atherosclerosis in the diabetic state.     

2型糖尿病患者CD62P、CD63表达率测定的临床评价

目的 探讨2型糖尿病（2型DM）患者血小板α－颗粒膜糖蛋白（CD62P）、血小板溶酶体膜糖蛋白（CD63）表达率的临床意义。方法 采用流式细胞仪,以荧光素标记单克隆抗体技术测定63例2型糖尿病患者（其中微血管病变31例,无微血管病变32例）CD62P、CD63表达率。结果 2型DM组,CD62P、CD63阳性表达率显著高于对照组（P＜0.01）。2型DM并微血管病变组显著高于无微血管病变组（P＜0.01）。结论 CD62P、CD63表达率测定对于2型DM微血管并发症的早期诊断有重要的临床意义。     

Interleukin-18 contributes more closely to the progression of diabetic nephropathy than other diabetic complications

Diabetic complication is comprised of a wide variety of pathophysiological factors involving proinflammatory cytokines, adipokines, and oxidative stress, among others. Each of these complications differs in their incidence and the stage of their occurrence. We examined cytokines and stress markers in 48 patients with type 2 diabetes mellitus and compared the difference of their contribution to pathogenesis between nephropathy and other diabetic complications. Hemoglobin A1c correlated with the level of low-density lipoprotein-cholesterol, and significantly elevated in the severe macroangiopathy group. Cystatin C increased in the severe microangiopathy groups but did not increase in the macroangiopathy group. The levels of interleukin 18 (IL-18), high-sensitive CRP (H-CRP), liver-type fatty acid binding protein, and 8-hydroxy-2-deoxyguanosine increased in the severe microangiopathy group. These data suggest the participation of proinflammatory signaling and oxidative stress in the progression of microangiopathy. In particular, IL-18 and H-CRP were significantly elevated only in the severe nephropathy group but did not significantly elevate in other complications. These data suggest another effect of IL-18 on glomerulus in addition to its proinflammatory effect. In conclusion, we propose that IL18 has a specific role that contributes more closely to the progression of diabetic nephropathy than other diabetic complications.     

血栓调节蛋白在糖尿病微血管病变中的变化

目的探讨血浆血栓调节蛋白（ＴＭ）在糖尿病性肾病患者中的变化以了解其在微血管病变发病中的意义。方法检测５８例２型糖尿病患者血浆ＴＭ与内皮素（ＥＴ）的水平,并与３０例正常人进行比较。结果（１）糖尿病组血浆ＴＭ水平明显高于正常对照组（Ｐ＜０．００１）,其中临床糖尿病肾病组血浆ＴＭ水平明显高于早期糖尿病肾病组（Ｐ＜０．００１）及尿白蛋白正常的糖尿病组（Ｐ＜０．０１）;（２）血浆ＴＭ水平与尿白蛋白排泄率、ＥＴ水平呈显著正相关（ｒ＝０．５３９０和０．５６５０,Ｐ均＜０．００５）。结论血浆ＴＭ水平测定对２型糖尿病性肾病的早期诊断和病情分析有重要的临床价值。     

2型糖尿病患者轻度认知功能障碍的筛查及相关危险因素的分析

目的 探讨2型糖尿病患者轻度认知功能障碍(mild cognitive impairment,MCI)的筛查及相关危险因素的分析.方法 选用蒙特利尔认知评估(Montreal Cognitive Assessment,MoCA)北京版量表作为认知功能的测评工具,选择2型糖尿病轻度认知功能障碍患者58例为研究对象,2型糖尿病无认知功能障碍30例为对照.检测入选病例的HbA_(1C)、血脂、肝肾功能和尿微量白蛋白水平.结果 与对照组比较,MCI组HbA_(1C)[(10.48±2.38对9.28±2.19)%,P<0.05]、总胆固醇[(4.87±1.18对4.18±1.04)mmol/L,P<0.01]、低密度脂蛋白胆固醇[LDL-C,(2.97±0.87对2.37±0.61)mmol/L,P<0.01]水平明显升高,高密度脂蛋白胆固醇水平降低[(1.084±0.34对1.25+0.33)mmol/L,P<0.05],甘油i酯、丙氨酸转氨酶(AIJT)、天冬氨酸转氨酶(AST)、肌酐、尿微量白蛋白差异无统计学意义.两组糖尿病病程、糖尿病视网膜病变、体重指数、腹围差异具有统计学意义(均P<0.05).MCI绀MoCA评分与HbA_(1C)(r=-0.396,P=0.002)和LDL-C(r=-0,275,P=0.036)呈负相关.多因素回归分析显示,HbA_(1C)是影响MoCA评分最为显著的因素.结论 2型糖尿病病程、肥胖、合并糖尿病并发症、血糖控制不良和血脂紊乱等因素与认知功能障碍相关.提示控制血糖、血脂,减轻体重,减少并发症有助于改善认知功能.     

基质金属蛋白酶9基因多态性与2型糖尿病血管病变的相关性研究

目的 探讨基质金属蛋白酶9(MMP-9)基因C-1562T多态性与2型糖尿痫血管病变的关系．方法 运用PCR-RFLP检测110名健康对照者和450例2型糖尿病(DM)患者(其中单纯2型DM者100例、大血管病变者120例、糖尿病肾病(DN)患者130例、糖尿病视网膜病变患者100例)的MMP-9基因型，比较各组的基因型和等位基因频率。结果 (1)所有糖尿病视网膜病变患者的基因型均为CC型。(2)与对照组和单纯2型DM组相比，大血管病变组的T基因型和T等位基因频率显著升高，而DN组的TT基因型和T等位基因频率明显下降。(3)Logistic回归分析显示MMP-9 T等位基因、血清MMP-9、总胆固醇、低密度脂蛋白胆固醇、脂蛋白(a)是大血管病变发生的危险因素；尿白蛋白排泄率、脂蛋白(a)、HbA1C是DN发生的危险因素。结论 MMP-9基因C-1562T多态性与2型DM血管病变的发生有关，T等位基因是大血管病变的易感基因，是DN的保护基因。