1. Characteristics of Type I hypersensitivity 1. Rapid react and disappear quickly on re-exposure to Ag 2. Dysfunction dysfunction rather than severe tissue and cell damage occurs 3. Strong hereditary tendency: obvious individual difference and genetic correlation
1. Characteristics of Type I hypersensitivity 1. Rapid: react and disappear quickly on re-exposure to Ag 2. Dysfunction: dysfunction rather than severe tissue and cell damage occurs 3. Strong hereditary tendency: obvious individual difference and genetic correlation
a Mediated by igE antibodies a Typical examples include polymorphisms of the promoter region for IL-4 and polymorphism of the gene for IL-5, either of which can directly influence the IgE production to allergens. 日‘ atopy’: An IgE-dependent allergy often arising from exposure to an unknown Ag
Mediated by IgE antibodies Typical examples include polymorphisms of the promoter region for IL-4 and polymorphism of the gene for IL-5, either of which can directly influence the IgE production to allergens. ‘atopy’: An IgE-dependent allergy often arising from exposure to an unknown Ag
II Components involved in type I hypersensitivity a Allergen is an antigen that gIV es rise to immediate hypersensitivity. protein or chemicals For example: pollen house dust mite, animal hair, dander, some foods, foreign serum, drugs a Allergin is a specific IgE that gives rise to immediate hypersensitivity
Allergen is an antigen that gives rise to immediate hypersensitivity. protein or chemicals For example: pollen, house dust mite, animal hair, dander, some foods, foreign serum, drugs. Allergin is a specific IgE that gives rise to immediate hypersensitivity. II. Components involved in type I hypersensitivity
Allergen 格链孢子 长蠕孢子 禾本科花粉 豚草花粉
Allergen 禾本科花粉 豚草花粉 格链孢子 长蠕孢子