高胆红素血症新生儿红细胞免疫功能的变化及其影响因素

目的研究高胆红素血症新生儿的红细胞免疫功能状态，观察各种因素对红细胞免疫功能的影响。方法采用酵母多糖花环试验法对52例高胆红素血症新生儿测定红细胞C3b补体受体花环（RBC-C3bRR）和红细胞免疫复合物受体花环（RBC-ICR），并与104例正常新生儿进行对比。结果1．高胆红素血症患儿RBC-C3bR低于正常新生儿，而RBC-ICR则高于正常新生儿，差异有显著性（Pa〈0．01）；2．不同总胆红素水平的新生儿间比较，RBC-C3bRR无统计学差异（Pa〉0．05），RBC-ICR有显著性差异（Pa〈0．05）；3．不同血清未结合胆红素水平的高胆红素血症患儿间进行比较，RBC-ICR有显著性差异（Pa〈0．05），RBC-C3bRR无明显差异（Pa〉0．05）；4．相关分析表明，高胆红素血症患儿的RBC-ICR与总胆红素、未结合胆红素水平间呈显著正相关（Pa〈0．05）；RBC-C3bRR与光疗时间呈正相关（P〈0．05）；高胆红素血症患儿的红细胞免疫功能与胎龄、日龄、喂养方式等因素无明显相关性（Pa〉0．05）。结论新生儿高胆红素血症的红细胞免疫功能低于正常新生儿，并与血清胆红素水平及光疗时间的影响有关。

Changes of Erythrocyte Immune Function in Neonates with Hyperbilirubinemia and Its Influential Factors

Objective To study the state of erythrocyte immune function in neonates with hyperbilirubinemia,and analyze the influence of various clinical status on erythrocyte immune function.Methods Fifty-two neonates with hyperbilirubinemia were enrolled and 104 healthy neonates as the control group.The adherence rate of complement 3b-receptor on the surface of red blood cell(RBC-C3bRR) and the immune complex adherence rate of red blood cell(RBC-ICR) were detected with erythrocyte saccha-romycete rosettet test.Results 1.The level of RBC-C3bRR in neonates with hyperbilirubinemia was lower than that in control group,and the level of RBC-ICR in neonates with hyperbilirubinemia was higher than that of control group(Pa<0.01).2.In different concentrations,there were significant diffe-rence in RBCICR(Pa<0.05),and no difference in RBC-C3bRR(Pa>0.05).3.Comparing the neonates with unconjugated bilirubin of different concentrations,there were significant difference in RBC-ICR(Pa<0.05) and no difference in RBC-C3bRR(Pa>0.05).4.There were positive correlation between RBC-ICR and bilirubin,unconjugated bilirubin in the neonates(Pa<0.05),and between RBC-C3bRR and time of the phototherapy(P<0.05).There were no correlation between the state of erythrocyte immune function in neonates with hyperbilirubinemia and some factors,such as gestational age,daily age and feeding patterns(Pa>0.05).Conclusion Erythrocyte immune function in neonates with hyperbilirubinemia is obviously lower than that of control group and it is influenced by the concentratron of bilirubin and the time of phototherapy.