ABSTRACT
Objective To explore the changes of the peripheral blood soluble Fas (sFas) and soluble FasL (sFasL) in patients of diabetes complicated with tuberculosis,in order to provide the basis for condition judgment and intervention.Methods The patients of diabetes complicated with tuberculosis (diabetes comphcated with tuberculosis group,25 cases),simple diabetes (diabetes group,25 cases),simple tuberculosis (tuberculosis group,25 cases) and healthy person (control group,25 cases) were selected.The peripheral blood sFas,sFasL and T-lymphocyte subsets were examined by enzyme-linked immunosorbent test.Results The peripheral blood sFas,sFasL in diabetes complicated with tuberculosis group,diabetes group,tuberculosis group was higher than that in control group[(7.91 ± 1.93),(8.74 ± 2.12),(7.86 ± 1.61)mg/L vs.(2.10 ±0.88) mg/L and (562.37 ± 196.38),(1512.32 ±303.48),(607.48 ± 102.53) ng/L vs.(263.18 ±46.32) ng/L](P＜ 0.05).The peripheral blood sFas,sFasL in diabetes group was higher than that in diabetes complicated with tuberculosis group and tuberculosis group (P ＜ 0.05).With sFasL 1000 ng/L as boundary value,the diagnostic coincidence rate of diabetes complicated with tuberculosis group and diabetes group was 90.00％ (45/50).CD3 +,CD4+ T-lymphocyte subsets in diabetes complicated with tuberculosis group,diabetes group,tuberculosis group was lower than that in control group (0.3376 ± 0.0712,0.2368 ± 0.0803,0.4801 ± 0.0896 vs.0.5849 ± 0.0487 and 0.1798 ± 0.0401,0.2100 ± 0.0679,0.2312 ± 0.0487 vs.0.2811 ± 0.0348) (P ＜ 0.05).CD3 + T-lymphocyte subsets in diabetes complicated with tuberculosis group was higher than that in diabetes group and lower than that in tuberculosis group (P ＜ 0.05).CD4+ T-lymphocyte subsets in diabetes complicated with tuberculosis group was lower than that in diabetes group,tuberculosis group(P ＜ 0.05).CD8+ T-lymphocyte subsets in diabetes complicated with tuberculosis group,diabetes group was higher than that in control group (0.3209 ± 0.0707,0.2831 ± 0.0794 vs.0.2086 ± 0.0589)(P ＜ 0.05).CD8+ T-lymphocyte subsets in diabetes complicated with tuberculosis group was higher than that in diabetes group and tuberculosis group (0.2287 ± 0.0690)(P ＜ 0.05).C D3 +,CD4+,CD8+ T-lymphocyte apoptotic rate in diabetes complicated with tuberculosis group,diabetes group,tuberculosis group was higher than that in control group [(4.34 ± 2.08)％,(3.22 ± 2.12)％,(2.59 ± 1.41)％ vs.(1.01 ± 0.38)％,(5.12 ± 1.58)％,(4.82 ± 1.98)％,(3.21 ± 1.19)％ vs.(1.78 ±0.53)％ and (1.45 ±0.52)％,(2.31 ±2.01)％,(1.62 ± 1.33)％ vs.(1.07 ± 0.38)％] (P ＜ 0.05).CD3 +,CD4+ T-lymphocyte apoptotic rate in diabetes complicated with tuberculosis group,diabetes group was higher than that in tuberculosis group (P ＜0.05).CD8+ Tlymphocyte apoptotic rate in diabetes group was higher than that in tuberculosis group (P ＜ 0.05).Conclusions The peripheral blood sFas and sFasL exists abnormal increase in patients of diabetes complicated with tuberculosis.CD3+,CD4+ T-lymphocyte decreasing shows that the patients exist immune function disorder.sFas and sFasL may be involved development process of disease,and the peripheral blood sFasL content can also be used as auxiliary indicators for identifying diabetes patients with tuberculosis.