title: [Change and significance of peripheral blood Th17 cells in patients with acute asthma].
abstract: OBJECTIVE
  To observe the change of peripheral blood Th17 cells and relationship between the severity and Th17 cells in patients with acute asthma.
  
  
  METHODS
  We recruited patients with mild acute asthma(n=10) and severe acute asthma(n=10), and healthy volunteers(n=10). T-lymphocytes were collected from the peripheral blood mononuclear cells (PBMC). Flow cytometer (FCM) was used to detect the expression of peripheral blood Th17 cells. IL-17 levels in the peripheral blood were measured by enzyme-linked immunosorbentassay (ELISA).
  
  
  RESULTS
  The rate of positive Th17 cells of peripheral blood in the severe acute asthma group was higher than that in the mild acute asthma group(P<0.05) and the rate of positive Th17 cells of peripheral blood in healthy volunteer group were the lowest among all groups (P<0.05, respectively). The level of IL-17 in the peripheral blood of patients with severe acute asthma increased significantly compared with that in patients with mild acute asthma and healthy volunteers (P<0.05). The positive Th17 cells of peripheral blood in patients with acute asthma were positively correlated with the severity of acute asthma(r=0.869, P<0.05).
  
  
  CONCLUSIONS
  The positive rate of Th17 cells in the peripheral blood increases in patients with acute asthma and has positive correlation with the severity of acute asthma.
authors.affiliation: Department of Respiratory Disease, People's Hospital of Hunan, Changsha 410002, China.
authors.forename: Jianmin
authors.initials: J
authors.lastname: Li
authors.forename: Xudong
authors.initials: X
authors.lastname: Xiang
authors.forename: Jinxiu
authors.initials: J
authors.lastname: Li
authors.forename: Wenpu
authors.initials: W
authors.lastname: Li
authors.forename: Shaokun
authors.initials: S
authors.lastname: Liu
mesh_terms: D000208:Acute Disease; D000328:Adult; D001249:Asthma / Q000097:blood* / Q000276:immunology*; D005260:Female; D006801:Humans; D020381:Interleukin-17 / Q000097:blood* / Q000276:immunology; D008297:Male; D012720:Severity of Illness Index; D058504:Th17 Cells / Q000276:immunology* / Q000378:metabolism
chemical_list: D020381:Interleukin-17