维持性透析患者红细胞生成素抗体水平及其临床意义

目的 检测透析患者红细胞生成素（EPO）抗体水平及探讨其临床意义。 方法 本院80例维持性血液透析患者和30例维持性腹膜透析患者为对象。用酶联免疫吸附法（ELISA）检测EPO抗体。用电化学发光法检测全段甲状旁腺素（iPTH）。用常规方法检测血红蛋白（Hb）、BUN、Scr、C反应蛋白（CRP）。分析透析患者EPO抗体水平与Hb、BUN、Scr、iPTH、CRP的关系。分析不同基础病患者与EPO抗体、Hb、BUN、Scr、iPTH、CRP的关系。研究EPO抗体和贫血关系。 结果 透析患者EPO抗体水平显著高于健康人，差异有统计学意义（P ＜ 0.05），而血透患者与腹透患者间EPO抗体水平差异无统计学意义。不同基础病的EPO抗体水平、Hb、BUN、Scr、iPTH、CRP差异无统计学意义。透析患者Hb与EPO抗体、CRP呈负相关（r = -0.56、-0.20，P ＜ 0.05），而与BUN、Scr、iPTH均无相关；EPO抗体与BUN、Scr、iPTH、CRP均无相关。1例应用重组人红细胞生成素（rHuEPO，环尔博)患者EPO抗体为43.63 U/L，骨髓活检示红细胞系增生低下——纯红细胞再生障碍性贫血。 结论 透析患者EPO抗体水平显著高于健康人。血透患者与腹透患者间EPO抗体水平差异无统计学意义。透析患者EPO抗体与BUN、Scr、iPTH、CRP无相关。透析患者Hb与EPO抗体、CRP呈负相关。使用rHuEPO能产生抗体，可导致骨髓红细胞系增生低下，加重贫血。

Anti-erythropoietin antibody level in maintenance dialysis patients and its clinical significance

Objective To investigate the anti-erythropoietin antibody level and its clinical significance in maintenance dialysis patients. Methods Eighty maintenance hemodialysis (HD) and 30 peritoneal dialysis (PD) patients were enrolled in the study. Serum anti-erythropoietin antibody levels of above 110 dialysis patients were measured by ELISA. Immunoreactive parathyroid hormone (iPTH), Scr, BUN, Hb, and CRP were determined by conventional methods at the same time. Correlations among these indexes were examined. Results The anti-erythropoietin antibody levels of the dialysis patients were significantly higher than those of healthy people (P＜0.05), but no significant difference was found between HD patients and PD patients. There were no significant differences of anti-erythropoietin antibody, Hb, BUN, Scr, iPTH and CRP among different primary diseases. Hb was negatively correlated with anti-erythropoietin antibody and CRP (r=-0.56, -0.20,P ＜0.05), but was not correlated with BUN, Scr, iPTH. There was no correlation of antierythropoietin antibody with BUN, Scr, CRP and iPTH. One patient receiving recombinant human erythropoietin (rHuEPO) treatment with anti-erythropoietin antibody 43.63 U/L developed pure red cell aplasia diagnosed by marrow biopsy. Conclusions The anti-erythropoietin antibody levels of the dialysis patients are significantly higher as compared to healthy people, but are not significantly different between HD and PD patients. Anti-erythropoietin antibody is not correlated with BUN, Scr,iPTH and CRP. Hb is negatively correlated with anti-erythropoietin antibody and CRP. The rHuEPO can induce the anti-erythropoietin antibody leading to pure red cell aplasia in dialysis patients.