title: Immunoregulation effect of crude extract of C. elegans on allergic asthma.
abstract: To explore effects of natural crude extract of C. elegans on treatment of asthma.
  
  
  METHODS
  Obtain crude extract of C. elegans from synchronically incubated C. elegans via centrifugation, washing and ultrasonic emulsification, etc.; measure C. elegans's protein molecular weight via SDS-polyacrylamide gel electrophoresis (SDS-PAG electrophoresis); construct animal models of asthma with 6-8-week-old BALB/c female mice sensitized by chicken ovalbumin (OVA); conduct immunotherapy on animals with asthma with different doses of mixture of C. elegans and OVA (COM) respectively; take PBS buffer group and OVA group as control groups; conduct inspection of cell factors and differential count of cells in serum IgE, IgG1 and IgG2a antibodies and bronchoalveolar lavage fluid (BALF) via enzyme linked immunosorbent assay (ELISA); and incise lung tissue for pathology observation.
  
  
  RESULTS
  C. elegans's protein molecular weight is about 50 kd. In bronchoalveolar lavage fluid (BALF) of OVA group, cell factors IL-5 and IL-13 are more than those in PBS buffer group, but IL-2 and IFN-γ are less than those in PBS buffer group; these differences are of statistical significance (P<0.05). Total cellular score and number of eosinophile granulocyte in BALF of OVA group are more than those in PBS buffer group (P<0.05), and the difference in serum IgE, IgG1 and IgG2a between these two groups is of statistical significance (P<0.05). For groups treatment by different doses of COM, cell factors IL-5 and IL-13 in bronchoalveolar lavage fluid (BALF) are less than those in OVA group, but IL-2 and IFN-γ are more than those in OVA group; these differences are of statistical significance (P<0.05). Total cellular score and number of eosinophile granulocyte in BALF of COM treatment groups are less than those in OVA group (P<0.05); serum IgE and IgG1 less than those in OVA group, but IgG2a is more than that in OVA group; these differences are of statistical significance (P<0.05).
  
  
  CONCLUSIONS
  The natural crude extract of C. elegans has immunoregulation to animals with asthma.
authors: Laboratory of Environment and Health, School of Earth and Environment, Anhui University of Science and Technology Huainan 232001, China ; School of Public Health, Wannan Medical University Wuhu 241001, China.
authors: Yuee
authors: Y
authors: Huang
authors: Department of Electrocardiograph, Yijishan Hospital of Wannan Medical University Wuhu 241001, China.
authors: Yongjun
authors: Y
authors: Zhang
authors: Laboratory of Environment and Health, School of Earth and Environment, Anhui University of Science and Technology Huainan 232001, China ; School of Basic Medicine, Wannan Medical University Wuhu 241002, China.
authors: Chaopin
authors: C
authors: Li
authors: School of Basic Medicine, Wannan Medical University Wuhu 241002, China.
authors: Yuxin
authors: Y
authors: Jiang
authors: School of Public Health, Wannan Medical University Wuhu 241001, China.
authors: Lianping
authors: L
authors: He
authors: School of Basic Medicine, Wannan Medical University Wuhu 241002, China.
authors: Wei
authors: W
authors: Guo
authors: School of Basic Medicine, Wannan Medical University Wuhu 241002, China.
authors: Min
authors: M
authors: Guo
authors: School of Basic Medicine, Wannan Medical University Wuhu 241002, China.
authors: Wei
authors: W
authors: Gong
keywords: Caenorhabditis elegans; asthma; crude extract; immunoregulation