血清可溶性转铁蛋白受体及转铁蛋白在儿童缺铁性贫血合并感染中的诊断价值

目的探讨血清可溶性转铁蛋白受体（sTfR）、转铁蛋白（Tf）在儿童缺铁性贫血合并急性感染（iron deficiency with acute infection，IDAI）中的变化和诊断价值。方法采用速率散射免疫比浊法，测定IDAI组、单纯缺铁性贫血（IDA）组、IDAI组治疗后及健康对照组的血清sTfR、Tf、铁蛋白（SF）水平。常规铁染色观察骨髓储存铁。结果IDAI组和IDA组患儿sTfR、Tf均显著高于对照组（P〈0．01），两组间无显著差异（P〉0．05），IDAI组治疗后血红蛋白（Hb）上升至100g／L以上，但与对照组还有差距时（P〈0．05），sTfR、Tf值降至对照组水平（P〉0．05）。结论sTfR、Tf对诊断缺铁性贫血特异强，测定结果不受感染因素干扰，是临床判断贫血合并感染儿童是否缺铁和监测疗效的可靠指标，临床应用价值优于SF和骨髓储存铁。

The Significance of sTfR and Tf in Serum in Diagnosing Children of Acute Infection with Iron Deficiency

Objective To explore the changes of sTfR and Tf in serum in children of acute infection with iron deficiency,and their significance in diagnosing. Methods To detect the level of sTfR, Tf and SF in serum by velocity scatter immune turbidimetry, volunteers were divided into groups as IDAI before and after treatment,IDA and the healthy controlled.While iron in bone marrow was observed by iron staining. Results The sTfR and Tf levels in serum in IDAI and IDA groups were significantly higher than that in the controlled group(P<0.01),but no difference showed between the former two groups(P>0.05).After the treatment,Hb in IDAI group,though was still abnormal comparing with the controlled group(P<0.05),ascended to 100g/L above.While sTfR and Tf descended to normal by contrast with the controlled ones(P>0.05) .Conclusions sTfR and Tf in serum were specific and sensitive in diagnosing the iron deficiency, and the results would not change if infected.So they are reliable indexes in diagnosing iron deficiency and monitoring the treating effect in the children of anemia with infection.Therefore the two indexes should be higher valued than SF or Iron in the bone marrow.