薛晔霞 王 玮 刘 岩
(包头医学院第一附属医院内分泌科,内蒙 包头 014010)
血栓调节蛋白和D-二聚体与糖尿病微血管病变的相关性研究
薛晔霞 王 玮 刘 岩
(包头医学院第一附属医院内分泌科,内蒙 包头 014010)
目的观察糖尿病微血管病变患者血浆血栓调节蛋白(TM)和D-二聚体(D-D)水平的变化,了解这两种因子在糖尿病微血管病变发病中的意义。方法将100例糖尿病患者按有无糖尿病微血管病变分为2组:无糖尿病微血管病变组患者38例和糖尿病微血管病变组患者62例,另选健康者30例作为正常对照组,测定各组血浆TM浓度及D-D浓度,观察各组变化,同时研究TM与D-D有无相关性。结果①糖尿病组血浆TM水平均明显高于正常对照组(P<0.05),而且合并微血管病变的糖尿病组血浆TM水平高于无微血管病变糖尿病组(P<0.05),②无微血管病变的糖尿病组D-D水平与正常对照组比较无统计学差异(P>0.05),而合并微血管病变的糖尿病组D-D水平高于无微血管病变的糖尿病组与正常对照组(P<0.05)。③血浆TM与D-D呈显著正相关(r=0.583,P<0.001)。结论①检测血浆TM水平可以帮助评价糖尿病患者血管内皮细胞损伤的情况;②随着糖尿病患者病情加重,微血管病变的出现,血中D-D水平升高,提示糖尿病微血管病变患者体内存在高凝状态、血栓形成和继发纤溶亢进;③糖尿病患者血浆TM与D-D密切相关,表明TM也反映体内高凝状态。
糖尿病微血管病变;血栓调节蛋白;D-二聚体
糖尿病微血管病变是糖尿病的慢性并发症之一,它的发生与许多因素有关,其中与慢性高血糖有关的包括高血脂等在内的各种代谢紊乱,均可损害血管内皮,导致血栓或广泛微血栓的形成,从而引起糖尿病特有的包括糖尿病肾病和糖尿病视网膜病变在内的微血管病变。目前,有研究已证实血浆血栓调节蛋白(thrombomodulin,TM)为体内血管内皮受损的标志[1],而D-二聚体(D-dimer,D-D)可作为体内高凝状态及血栓形成的标志之一[2-3]。本文通过观察糖尿病微血管病变患者血中血栓调节蛋白和D-D的变化及二者的相关性,旨在进一步了解这两种因子在糖尿病微血管病变发病中的意义。
1.1 研究对象
1.1.1 糖尿病组:入选患者为在我院住院的2型糖尿病患者,共100例,所有患者行眼底镜和眼底荧光血管造影检查及尿A/C化验明确有无糖尿病视网膜病变或糖尿病肾病,根据检查结果将其分为以下两组:其中无糖尿病微血管病变38例(男17例,女21例),平均年龄52岁;合并糖尿病微血管病变(有糖尿病视网膜病变或同时有糖肾病)62例(男26例,女36例),平均年龄58岁。
1.1.2 正常对照组:选择来我院进行健康体检者,共30例,男11例,女19例,平均年龄56岁。以上所有入选对象均排除肝功能损害,无感染性疾病和其他肾病,无自身免疫性疾病或凝血原活性异常,无严重心、脑血管疾病,采血前1周内未服用抗凝及抗血小板等影响凝血/纤溶系统的药物。正常对照组除外肥胖、糖尿病、高血压、肝、肾疾患。所有入选对象均知情同意。
1.2 研究方法:所有检测者均于空腹抽取静脉血,TM的测定采用双抗夹心ELISA法,D-D的测定采用ACL-9000全自动血凝仪测定。
1.3 统计学分析:所有数据均用SPSS11.5统计软件处理,计量资料比较采用单因素方差分析(One-Way ANOVA),计数资料比较采用χ2检验,TM和D-D间的相关分析采用直线相关分析。
2.1 各组一般资料比较:见表1。各组受试者年龄、性别、BMI、SBP、DBP均无显著差异(P>0.05),具有可比性。
2.2 各组TM浓度比较:见表1。糖尿病微血管病变组>无微血管病变糖尿病组>正常对照组,各组间两两比较均有统计学差异(P<0.05)。
2.3 各组D-D浓度比较:见表1。无微血管病变糖尿病组与正常对照组比较,无统计学差异(P>0.05),而糖尿病微血管病变组D-D浓度显著高于无微血管病变糖尿病组及正常对照(P<0.05)。
Blood Clots Regulatory Proteins and D-dimer and Diabetic Microangiopathy Correlation Studies
XUE Ye-xia, WANG wei, LIU Yan
(Department of Endocrinology, the First Affiliated Hospital of Baotou Medical College, Baotou 014010, China)
ObjectiveTo measure the plasma levels of thrombomodulin(TM) and D-dimer in patients with diabetic microangiopathy and to study the significance of TM and D-dimer in the pathogenesis of diabetic microangiopathy.Methods100 cases of diabetic patients were divided into two groups, including 38 cases of no diabetic microangiopathy group, and 62 cases of diabetic microangiopathy group, while 30 cases of normal people were also checked as the control group. The plasma levels of TM and D-dimer were examined, The relationship between TM and D-dimer was also investigated.Result①The plasma TM level in diabetes group was higher than those in the control group (P<0.05) . and the plasma TM level was higher in diabetic microangiopathy group than those in no diabetic microangiopathy group(P<0.05). ②No statistical difference in D-dimer between no diabetic microangiopathy group and control group. The plasma D-dimer level was higer in diabetic microangiopathy group than those in no diabetic microangiopathy group and control groups(P<0.05). ③There was positive correlation between TM and D-dimer(r=0.583, P<0.001).Conclusion①Clinical determination of plasma TM level in patients of diabetes can help evaluate diabetic vascular endothelial cell injury. ②The levels of plasma D-dimer in patients of diabetes increased as microangiopathy progressed, the result demonstrates that both coagulation and fibrinolysis are enhanced concomitantly in diabetic microangiopathy patients.③There was positive correlation between TM and D-dimer, the level of plasma TM also demonstrates that there is hypercoagulation in diabetic patients.
Diabetic microangiopathy; Thrombomodulin; D-dimer
R587.2
B
1671-8194(2015)01-0014-02