title: [Value of serum S100B protein and neuron-specific enolase levels in predicting the severity of hand, foot and mouth disease].
abstract: OBJECTIVE
  To study the value of serum S100B protein and neuron-specific enolase (NSE) levels in predicting the severity of hand, foot and mouth disease (HFMD).
  
  
  METHODS
  Ninety children with HFMD were classified into three groups: common type, severe type, and critical type (n=30 each). Thirty healthy children were randomly selected as the control group. ELISA was used to measure serum levels of S100B protein and NSE before and at 7 days after treatment. The receiver operating characteristic (ROC) curve was used to evaluate the prediction efficiency of S100B protein and NSE for the severity of HFMD.
  
  
  RESULTS
  The critical type group had significant increases in the serum levels of S100B protein and NSE compared with the other three groups (P<0.01). The severe type group had significant increases in serum levels of S100B protein and NSE compared with the common type and control groups (P<0.01). The critical type and severe type groups had significant reductions in serum levels of S100B protein and NSE after treatment (P<0.05). Serum S100B protein had the highest Youden value of 0.611 at the cut-off value of 0.445 μg/L, with a sensitivity of 61% and a specificity of 100%, in the prediction of serious HFMD (including severe type and critical type HFMD). Serum NSE had the highest Youden value of 0.533 at the cut-off value of 5.905 μg/L, with a sensitivity of 80% and a specificity of 73%, in the prediction of serious HFMD. Combined measurements of these two parameters had a sensitivity of 86% and a specificity of 73% and had the highest predictive value for serious HFMD.
  
  
  CONCLUSIONS
  The serum levels of S100B protein and NSE help to predict the severity and treatment outcomes of HFMD. Combined measurements of these two parameters has a higher predictive value for serious HFMD.
authors.affiliation: Department of Pediatric Intensive Care Unit, Qingdao Women and Children's Hospital, Qingdao, Shandong 266000, China. lisang1976@aliyun.com.
authors.forename: Jing
authors.initials: J
authors.lastname: Li
authors.forename: Rui-Hai
authors.initials: RH
authors.lastname: Liu
authors.forename: Ruo-Bing
authors.initials: RB
authors.lastname: Shan
mesh_terms: D002648:Child; D002675:Child, Preschool; D005260:Female; D006232:Hand, Foot and Mouth Disease / Q000097:blood*; D006801:Humans; D008297:Male; D010751:Phosphopyruvate Hydratase / Q000097:blood*; D064568:S100 Calcium Binding Protein beta Subunit / Q000097:blood*
chemical_list: D064568:S100 Calcium Binding Protein beta Subunit; D010751:Phosphopyruvate Hydratase