Gastric juice IgG IgA

IgG is human; the main antibody in serum accounts for about 75% of the total IG in adult serum, the IgG in serum accounts for about 50% of the total body IgG, IgG is the main anti-infective antibody, most antibacterial, antiviral and Antiviral antibodies belong to the IgG class, and many autoantibodies, such as antinuclear antibodies and anti-gonadoglobulin antibodies, also belong to the IgG class. IgA accounts for 10% to 15% of total IG in serum, but in exocrine fluids such as tears, saliva, milk and respiratory, gastrointestinal, reproductive tract secretions, etc., IgA content is high, so In other words, the daily synthesis of IgA can reach 66mg / kg, which is the most globulin secreted by the entire body. IgA in serum is serotype, and IgA in exocrine fluid is secreted. Secreted IgA is the main immunoglobulin in mammalian secretions, and it is extremely important to protect the mucosal surface from microbial attack.