尿毒症患者凝血因子Ⅶ水平及其影响因素

本研究检测慢性肾功能衰竭尿毒症期患者血浆凝血因子Ⅶ (FⅦ )水平并初步探讨其影响因素。选取 3 0例慢性肾功能衰竭尿毒症期患者 ,采用一期凝血法分别检测血液透析前及血液透析 1月后血浆凝血因子Ⅶ水平∶因子Ⅶ活性 (FⅦ∶C) ;采用重组可溶性组织因子一期凝血法检测活化因子Ⅶ (FⅦa) ;采用酶联免疫吸附法检测因子Ⅶ抗原 (FⅦAg)。结果显示 :①尿毒症患者血液透析前FⅦa、FⅦ∶C和FⅦAg水平分别为 4 .0 0± 0 .86μg/L、( 14 8.5± 4 0 .4 ) %和 ( 99.8± 2 1.1) % ,健康对照则分别为 2 .77± 1.0 2 μg/L、( 113 .1± 3 3 .0 ) %和 ( 73 .7± 18.3 ) % ,尿毒症患者的FⅦa ,FⅦ∶C ,FⅦAg水平与健康对照比较显著增高 (P 值均 <0 .0 5 ) ;②尿毒症患者血液透析后FⅦa,FⅦ∶C和FⅦAg水平分别为 5 .5 6± 1.4 5 μg/L、( 2 0 0 .8± 68.7) %和 ( 12 4 .1± 19.3 ) % ,与血液透析前相比较 ,FⅦa,FⅦ∶C和FⅦAg水平均显著增高 ( P值均 <0 .0 5 ) ;③尿毒症患者血液透析前FⅦAg ,FⅦ∶C及FⅦa水平与血尿素氮水平呈正相关 (相关系数分别为r =0 .3 7,P <0 .0 5 ;r =0 .4 0 ,P <0 .0 5 ;r =0 .2 8,P <0 .0 5 ) ;与血肌酐水平亦呈正相关 (相关系数分别为r =0 .14 ,P <0 .0 5 ;r =0 .2 3 ,P <0 .0 5 ;r =0 .18,P

Coagulation Factor Ⅶ Levels in Uremic Patients and Theirs Influence Factors

This study was aimed to investigate coagulation factor VII level in uremic patients with chronic renal failure and to explore theirs influence factors. The plasma levels of coagulation factor VII were detected in 30 uremic patients with chronic renal failure before and after hemodialysis for 1 month, the factor VII activity (FVII:C) was determined by one-stage coagulation method, while activated factor VII (FVIIa) was measured by one-stage coagulation method using recombinant soluble tissue factor, and factor VII antigen was detected by ELISA. The results showed that: (1) The FVIIa, FVII:C and FVIIAg levels in chronic uremic patients before hemodialysis were 4.00 +/- 0.86 microg/L, (148.5 +/- 40.4)% and (99.8 +/- 21.1)% respectively, which were significantly increased, as compared with healthy controls 2.77 +/- 1.02 microg/L, (113.1 +/- 33.0)% and (73.7 +/- 18.3)% respectively, P < 0.05]. (2) After hemodialysis the FVIIa, FVII:C and FVIIAg levels in uremic patients significantly enhanced to 5.56 +/- 1.45 microg/L, (200.8 +/- 68.7)% and (124.1 +/- 19.3)% respectively (P < 0.05). (3) The abnormal increase of coagulation factor VII was positively correlated with levels of blood uria nitrogen and serum creatinine before hemodialysis but not after hemodialysis. It is concluded that the enhanced levels of coagulation factor VII in chronic uremic patients suggested abnormal activated state, herperactivity and elevated production of factor VII which correlated with renal functional injury. The abnormality of factor VII in uremia may be aggravated by hemodialysis. Coagulation factor (FVII) may be a risk factor for cardiovascular events in uremic patients who especially had been accepted long-term hemodialysis.