Study on the Correlation Between Intestinal Microecology and Allergic Diseases in Children

Allergic diseases, including allergic reactions of respiratory tract and skin, are often triggered by mast cell degranulation mediated by allergen-specific IgE and chronic inflammation of target organs, which are involved in a variety of immune cells and inflammatory factors. Recent studies have shown that intestinal immunity is closely related to immune responses to various diseases. Intestinal microecology influences the occurrence and regression of various diseases by regulating the growth, differentiation and maturation of various immune cells. Probiotics are widely used in children with allergies. This study aims to analyze the correlation between the intestinal microecology of children with rhinitis/asthma, eczema and urticaria and the clinical manifestations of the patients. By observing the influence of probiotics intervention on clinical symptoms and changes in intestinal microecology, the influence of intestinal microecology on children's allergic diseases was clarified. Study protocol: 1) children with definitive diagnosis of allergic rhinitis, asthma，atopic dermatitis and chronic urticaria were enrolled, each with 50 cases. 2) collect manure application of 16s rDNA probe hybridization technique to analyze the fecal flora, and compared with clinical symptoms rating scale and serum sIgE, IgG4 correlation analysis (3) application of probiotic intervention or conventional drug intervention, again in 3 months, 6 months after collecting dung is used to detect the intestinal flora in children with its correlation with clinical symptoms change were observed.