title: [Expression of serum YKL-40 in anaphylactic rhinitis patients and association of serum YKL-40 with serum IL-4 and IFN-γ].
abstract: OBJECTIVE
  This study intends to preliminarily discuss the expression and the clinical meaning of serum YKL-40 in anaphylactic rhinitis by comparing the different expressions of serum YKL-40 in types of anaphylactic rhinitis, and to preliminarily discuss possible mechanism of having anaphylactic rhinitis involved with serum YKL-40 by associating it with serum IL-4 and IFN-γ in anaphylactic rhinitis.
  
  
  METHODS
  Firstly, each select 20 people in our hospital who have anaphylactic rhinitis respectively according to different levels--mild intermittent, mild persistent, moderate-severe interminttent, moderate-severe persistent as the experimental groups, while 20 healthy people as the nomal control. Secondly, test the levels of serum YKL-40, IL-4 and IFN-γ respectively in each group by the ELISA method. Thirdly, statistically analyze and discuss the collected data.
  
  
  RESULTS
  (1) There was a rise in the expression of serum YKL-40 between the experimental groups and the nomal control group, which contained a statistical significance (P < 0.05). There was a rise in the expression of serum YKL-40 between the mild persistent group and mild intermittent group, which contained a statistical significance (P < 0.05), as well as between the moderate-severe persistent group and the moderate-severe intermittent group (P < 0.05), while there was no significant difference in expression of serum YKL-40 between the mild intermittent group and the moderate-severe intermittent group, as well as between the mild persistent group and the moderate-severe persistent group (P > 0.05). (2) There was a rise in the expression of serum IL-4 between the experimental groups and the nomal control group, which contained a statistical significance (P < 0.05), while there was no significant difference between each experimental group (P > 0.05). (3) There was a reduction in the expression of serum IL-4 be- tween the experimental groups and the nomal control group, which contained a statistical significance (P < 0.05), while there was no significant difference between each experimental group (P > 0.05). (4) The corelation between serum YKL-40 and IL-4 in anaphylactic rhinitis was positive, while the corelation between serum YKL-40 and IFN-γ was negative.
  
  
  CONCLUSIONS
  (1) Allergic rhinitis serum YKL-40 expression was increased. The corelation between serum YKL-40 and IL-4 in anaphylactic rhinitis was positive, while the corelation between serum YKL-40 and IFN-γ was negative,suggesting that YKL-40 may regulate the differentiation of Th cells, Promote Th1 to Th2 immune shift, through this mechanism involved in the pathogenesis of allergic rhinitis. (2) Compared with patients with intermittent allergic rhinitis, persistent allergic rhinitis serum YKL-40 expression was increased, suggesting that YKL-40 may promote the continuous attacks of the symptoms of allergic rhinitis.
authors.forename: Fei
authors.initials: F
authors.lastname: Liu
authors.forename: Shuo
authors.initials: S
authors.lastname: Li
authors.forename: Chunsheng
authors.initials: C
authors.lastname: Gao
mesh_terms: D054392:Adipokines / Q000097:blood*; D016022:Case-Control Studies; D000071451:Chitinase-3-Like Protein 1; D006801:Humans; D007371:Interferon-gamma / Q000097:blood*; D015847:Interleukin-4 / Q000097:blood*; D037102:Lectins / Q000097:blood*; D065631:Rhinitis, Allergic / Q000097:blood*
chemical_list: D054392:Adipokines; C084533:CHI3L1 protein, human; D000071451:Chitinase-3-Like Protein 1; C573415:IFNG protein, human; C508598:IL4 protein, human; D037102:Lectins; D015847:Interleukin-4; D007371:Interferon-gamma