目的 探讨血清中蛋白聚糖-1(syndecan-1)的水平与糖尿病微血管病变的相关性. 方法 选取糖尿病患者55例,其中单纯糖尿病者(DM组)27例,合并糖尿病视网膜病变者(DR组)8例,合并糖尿病慢性肾脏疾病者(CKD组)8例,同时合并DR和CKD者(DR+ CKD组)12例.另选取健康对照者(NC)9名.采用酶链免疫吸附试验检测血清中syndecan-1的水平,并分析syndecan-1与DR和CKD的相关性. 结果 DM、DR、CKD、DR+CKD及NC组血清中syndecan-1的浓度分别为(26.79±16.89)、(18.83±8.74)、(69.44±52.58)、(80.33±94.28)及(21.59±14.50) ng/ml,各组间比较差异有统计学意义(x2=13.5600,P=0.0088).CKD、DR+ CKD组与NC组比较,差异有统计学意义(x2=4.8000、7.3400,P=0.0284、0.0067).方差分析结果表明,CKD是决定血清syndecan-1浓度的因素(F=4.9600,P=0.0313).多元线性回归分析结果表明,血肌酐(Scr)水平对血清syndecan-1浓度有极大的决定作用(R2=0.8000). 结论 CKD患者血清syndecan-1水平明显升高,Scr水平与糖尿病患者血清syndecan1的水平明显相关.
Objective To study the correlation of serum syndecan-1 with diabetic microangiopathy.Methods Serum syndecan-1 was detected by enzyme-linked immunosorbent assay.Association of serum syndecan-1 with diabetic retinopathy and diabetic neuropathy was determined by statistical analysis.Results Fifty-five individuals with diabetes (27 without any diabetic complication,8 with diabetic retinopathy,8 with diabetic nephropathy,12 with diabetic retinopathy plus diabetic neuropathy)and 9 healthy age-matched subjects(control group)were enrolled.Serum syndecan-1 was (21.59± 14.50) ng/ml in the group of controls,(26.79 ± 16.89) ng/ml in diabetes without any diabetic complication,(18.83 ± 8.74) ng/ml in diabetic retinopathy,(69.44±52.58) ng/ml in diabetic neuropathy,and (80.33±94.28) ng/ml in diabetic retinopathy plus diabetic neuropathy with differences being significant among 5 groups (x2 =13.5600,P =0.0088).The difference in serum syndecan-1 was significant(x2 =4.8000,P =0.0284) between diabetic neuropathy group and control group; and significant(x2 =7.3400,P=0.0067) between control group and group with diabetic retinopathy and diabetic neuropathy,Diabetic neuropathy was one important determined factor for the levels of serum syndecan-1(ANOVA,F=4.9600,P=0.0313).We set syndecan-1 as the outcome variable and renal function(urea nitrogen and creatinine)as the independent variables,and multiple linear regression analysis was done.It showed that serum creatinine levels determined greatly on serum syndecan-1 level(R2=0.8000).Conclusion In patients with diabetes,serum syndecan-1 is associated with diabetic nephropathy.Serum creatinine level is correlated with the levels of serum syndecan-1 in diabetes.