肾移植患者手术前后血清IL-18的变化及意义

目的:探讨肾移植患者手术前后血清IL-18的变化及临床意义。方法:采用ELISA检测患者手术前与手术后5d、10d、20d血清中IL-18的含量。结果:肾移植患者手术前IL-18水平与正常对照组比较明显升高(P<0.01);急性排斥组手术后5d、10d与其手术前比较IL-18含量无显著性变化(P>0.05),手术后20d明显高于手术前、手术后5d、10d(P<0.01);稳定组手术后5d与其手术前比较IL-18含量明显增加(P<0.01),10d、20d则下降至手术前水平(P>0.05);急性排斥组与稳定组手术后20d比较差异非常显著(P<0.01)。结论:血清IL-18测定是判断急性排斥反应的一个较好的参考指标。

Significance of Post-operative Changes of Serum IL-18 Levels in Patients with Renal Transplantation

Objective To study the clinical significance of post-operative changes of serum IL-18 levels in patients after renal transplantation. Methods Serum IL-18 levels were detected with ELISA in 33 patients with renal transplantation before operation and repeated again on d5, d10 and d20 post-operatively as well as in 35 controls. Results Pre-operatively, serum IL-18 levels in patients for upcoming renal transplantation were significantly higher than those in controls (P<0.01). After operation, the IL-18 levels on d5 and d10 in patients with acute rejection were not significantly changed from those pre-operatively but were markedly increased on d20 (vs pre-operative, d5, d10; all P<0.01). In the patients without rejection, levels in d5 were significantly higher than those pre-operatively, but dropped to approaching pre-operative values on d10 and d20. On d20, levels of serum IL-18 in patients with rejection were very significantly higher than those in stable patients (P<0.01). Conclusion Serum IL-18 is a useful marker for identifying acute rejection.