Search results
Results from the WOW.Com Content Network
ASCIA's Mission is to "advance the science and practice of clinical immunology and allergy, by promoting education and the highest standard of ethical medical practice." [1] ASCIA was formed in 1991 by the merging of the Australian College of Allergy with the Australasian Society of Immunology Clinical Immunology Group. [1]
An allergic reaction can be caused by direct contact with an allergen. For example, through consuming a certain food, inhalation of pollens or dust mites, or direct contact with a certain material. A family history of allergies also leads to a higher risk of developing allergic diseases. [4]
[3] An example of complement dependent type II hypersensitivity is an acute hemolytic transfusion reaction following transfusion of ABO incompatible blood. [4] Preformed antibody (predominantly IgM) against donor red cell antigens not found in an individual of a particular blood group (e.g. anti-A IgM in an individual with blood group B), bind to the donor red cell surface and lead to rapid ...
Allergies are an abnormal immune reaction. The human immune system is designed to protect the body from potential harm and in people who have allergies the immune system will react to allergens (substances that trigger an immune response). The immune system will produce immunoglobulin E, IgE, antibodies for each allergen.
Type III hypersensitivity, in the Gell and Coombs classification of allergic reactions, occurs when there is accumulation of immune complexes (antigen-antibody complexes) that have not been adequately cleared by innate immune cells, giving rise to an inflammatory response and attraction of leukocytes.
The resultant T H 2 cells activate an important arm of the immune system, known as the humoral immune system. The humoral immune system produces antibodies against the inhaled allergen. Later, when a patient inhales the same allergen, these antibodies "recognize" it and activate a humoral response. Inflammation results: chemicals are produced ...
Tissues affected in allergic inflammation. Allergic inflammation is an important pathophysiological feature of several disabilities or medical conditions including allergic asthma, atopic dermatitis, allergic rhinitis and several ocular allergic diseases.
Allergen immunotherapy is useful for environmental allergies, allergies to insect bites, and asthma. [ 6 ] [ 118 ] Its benefit for food allergies is unclear and thus not recommended. [ 6 ] Immunotherapy involves exposing people to larger and larger amounts of allergen in an effort to change the immune system's response.