实用肝脏病杂志 ›› 2018, Vol. 21 ›› Issue (1): 68-71.doi: 10.3969/j.issn.1672-5069.2018.01.016

• 病毒性肝炎 • 上一篇    下一篇

血清β2微球蛋白和胱抑素C检测对评估高胆红素血症新生儿肾损害的临床意义

卢光全, 白淑霞, 秦霞, 李儒贵   

  1. 442000 湖北省十堰市 湖北医药学院附属人民医院感染性疾病科(卢光全,李儒贵); 儿科(白淑霞,秦霞)
  • 收稿日期:2017-02-20 出版日期:2018-01-10 发布日期:2018-01-29
  • 通讯作者: 李儒贵,E-mail:lrg049@sina.com

Changes of serum β2-microglobulin and cystatin C in assessment of renal deficiency in newborns with hyperbilirubinemia.

Lu Guangquan, Bai Shuxia, Qin Xia, et al   

  1. Department of Infectious Diseases,Renmin Hospital,Hubei University of Medicine,Shiyan 442000,Hubei Province,China
  • Received:2017-02-20 Online:2018-01-10 Published:2018-01-29

摘要: 目的 探讨血清β2微球蛋白(β2-MG)及胱抑素C(CysC)在评估高胆红素血症新生儿肾损害的临床意义。方法 2014年1月~2016年6月符合新生儿高胆红素血症诊断标准的新生儿128例,根据总胆红素(TBIL)水平分为轻度黄疸组(256.5 μmol/L>TBIL≥221 μmol/L)76例和中重度黄疸组(TBIL≥256.5 μmol/L)52例,另选年龄、性别相匹配的正常足月新生儿60例作为对照组,比较各组新生儿血清尿素氮(BUN)、肌酐(sCr)、CysC、β2-MG水平,观察治疗前后患儿TBIL、BUN、sCr、CysC、β2-MG的变化情况。结果 在128例高胆红素血症新生儿中,肾功能损伤25例,其中中重度黄疸组20例,轻度黄疸组5例;中重度组血清BUN、sCr、CysC、β2-MG水平分别为(5.76±1.45) mmol/L、(52.35±17.16) μmol/L、(2.68±0.45) mg/L、(4.25±1.52) mg/L,明显高于对照组的[(4.20±1.06) mmol/L、(38.65±14.23) μmol/L、(0.92±0.25) mg/L、(2.15±1.24) mg/L,均P<0.01]和轻度组的[(4.58±1.23) mmol/L、(43.76±15.75) μmol/L、(1.76±0.37) mg/L、(3.48±1.40) mg/L,均P<0.01];轻度组血清CysC、β2-MG分别为(1.76±0.37) mg/L、(3.48±1.40) mg/L,明显高于对照组的[(0.92±0.25)mg/L、(2.15±1.24)mg/L,均P<0.01],对照组和轻度组血清BUN和sCr水平差异无统计学意义(P>0.05);治疗后患儿血TBIL、BUN、sCr、CysC、β2-MG水平分别为(182.42±45.25) μmol/L、(4.32±1.25) mmol/L、(45.24±14.35) μmol/L、(1.86±0.38)mg/L、(3.42±1.36) mg/L,明显低于治疗前的[(278.65±68.46) μmol/L、(5.35±1.30) mmol/L、(50.56±16.25)μmol/L、(2.25±0.41) mg/L、(3.96±1.45) mg/L,均P<0.01]。结论 高胆红素血症早期可导致新生儿不同程度的肾功能损害,及时治疗后可恢复。血β2-MG和CysC水平可作为判断高胆红素血症新生儿早期肾损害的敏感指标。

关键词: 高胆红素血症, β2-微球蛋白, 胱抑素C, 肾功能损害, 新生儿

Abstract: Objective To investigate the changes of serum β2-microglobulin(β2-MG) and cystatin C (CysC) in evaluation of renal deficiency in newborns with hyperbilirubinemia. Methods 128 newborns with hyperbilirubinemia between January 2014 and June 2016 in Department of Pediatry in our hospital were selected and 76 were found with mild jaundice (256.5 μmol/L>TBIL≥221 μmol/L) and 52 with moderate/severe jaundice (TBIL≥256.5 μmol/L). 60 age-and gender-matched newborns were chosen as healthy controls. The levels of serum urea nitrogen(BUN),creatinin (sCr),CysC,β2-MG were detected,and the changes of TBIL,BUN,sCr, CysC,β2-MG in children before and after treatment were compared among them. Results Out of 128 newborns with hyperbilirubinemia,the renal deficiency was found in 25 cases,including 20 in moderate/severe jaundice group and 5 in mild jaundice group;serum levels of BUN,sCr,CysC and β2-MG in moderate/severe group were (5.76±1.45) mmol/L,(52.35±17.16) μmol/L,(2.68±0.45) mg/L,(4.25±1.52) mg/L,respectively,which were significantly higher than those in control group[(4.20±1.06) mmol/L,(38.65±14.23) μmol/L,(0.92±0.25) mg/L,(2.15±1.24) mg/L,all P<0.01] or those in mild icteric group[(4.58±1.23) mmol/L,(43.76±15.75) μmol/L,(1.76±0.37) mg/L,(3.48±1.40) mg/L,all P<0.01];serum levels of CysC and β2-MG in mild icteric group were (1.76±0.37) mg/L and (3.48±1.40) mg/L,which were significantly higher than those in control group [(0.92±0.2) mg/L and (2.15±1.24) mg/L,respectively,both P<0.01];there was no significant difference as respect to serum BUN or sCr between the control and mild icteric group(P>0.05);after treatment,serum bilirubin,BUN,sCr,CysC and β2-MG levels in newborns with hyperbilirubinemia were(182.42±45.25) μmol/L,(4.32±1.25) mmol/L,(45.24±14.35) μmol/L,(1.86±0.38) mg/L,(3.42±1.36) mg/L respectively,significantly lower than those before treatment[(278.65±68.46) μmol/L,(5.35±1.30) mmol/L,(50.56±16.25) μmol/L,(2.25±0.41) mg/L,(3.96±1.45) mg/L,all P<0.01]. Conclusion Severe hyperbilirubinemia can induce renal damage in newborns,however,the damage can be recovered after timely treatment. Serum β2-MG and CysC can be acted as sensitive indicators for diagnosis of early renal dysfunction in newborns with hyperbilirubinemia.

Key words: Hyperbilirubinemia, β2-microglobulin, Cystatin C, Renal damage, Newborns