前降钙素、血清C反应蛋白联合测定对诊断新生儿早期细菌感染的意义 降钙素和超敏C反应蛋白

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  【摘要】 目的 探讨前降钙素(PCT)、C反应蛋白(CRP)联合测定在新生儿早期细菌感染诊断中的意义。方法 采用散射比浊法测定100例发生细菌感染的新生儿(感染组)、50例正常足月新生儿(对照组)和72例非感染病症新生儿(未感染组)的血清PCT和CRP水平。结果 对照组PCT和CRP值分别为(1.5±0.07)ng/ml和(1.00±0.29) mg/L;感染组PCT和CRP值分别为(30.25±20.71)ng/ml和(45.19±25.79) mg/L,均较对照组明显升高(P0.05),与感染组比较,差异有统计学意义(P0.05)。结论 血清PCT 与CRP联合测定可作为诊断新生儿早期细菌感染的指标。
  【关键词】 前降钙素(PCT);C反应蛋白;细菌感染;新生儿
  
  Procalcitonin (PCT) and C-reactive Protein(CRP) in the Early Diagnosis of Neonatal Bacterial Infection
  【Abstract】 Objective To evaluate the clinical significance of simultaneous detection of serum Procalcitonin (PCT) and C-reactive protein (CRP) in the diagnosis of neonatal bacterial infection during the early stage.Methods Nephelometry was used to detect the levels of serum PCT and CRP in 100 neonates with bacte-rial infection(infection group),50 normal full term neonates (control group) and 72 neonates without infective diseases (non-infection group).Results The serum level of PCT and CRP in infection group Was (30.25±20.71) ng/m1 and (45.19± 25.79) mg/L respectively,which were much higher than those in control group (1.5±0.07) ng/m1 and (1.00±0.29) mg/L respectively.The serum PCT value in non-infection group was (0.85±0.07) g/L.No significant difference was found between control and non-infection group (P>0.05),there was significant difference between non-infection and infection group (P0.05).Conclusion The combined assay of serum PCT and CRP is valuable for the early diagnosis of bacterial infection in newborns.
  【Key words】 Procalcitonin (PCT);C-reactive protein;Bacterial infection;Neonate
  
  前降钙素(PCT)是由116个氨基酸组成的无激素活性的糖蛋白分子,是降钙素(CT)的前体。在神经内分泌细胞(甲状腺、肺和胰腺)的C细胞中分裂为3个部分,降钙素、降钙蛋白和N末端。通常情况下所有PCT是被降解的,不释放到血液中,因此在健康人PCT水平非常低(0.05);CRP值比较,感染组与未感染组之间差异无统计学意义 (P>0.05),而均明显高于对照组(P[1-2]。近年来,有学者提出,连续测CRP数值的动态变化来反映感染状况更有价值[3]。前降钙素(PCT)是由116个氨基酸组成的无激素活性的糖蛋白分子,是降钙素(CT)的前体。在神经内分泌细胞(甲状腺、肺和胰腺)的C细胞中分裂为3个部分,降钙素、降钙蛋白和N末端。通常情况下所有PCT是被降解的,不释放到血液中,因此在健康人PCT水平非常低(

推荐访问:血清 新生儿 测定 细菌

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