Some triggers are substances a person may be allergic to (allergens). Allergens cause the body's natural defences (immune system) to produce chemicals called immunoglobulin E (IgE) antibodies. These chemicals bind to allergens, causing inflammation of the bronchial tubes, which carry air to the lungs. The allergen may also cause asthma attacks. These triggers include:
Other triggers can cause asthma symptoms without affecting the body's immune system. These include:
|Primary Medical Reviewer||E. Gregory Thompson, MD - Internal Medicine|
|Primary Medical Reviewer||Brian D. O'Brien, MD - Internal Medicine|
|Specialist Medical Reviewer||Lora J. Stewart, MD, MPH - Allergy and Immunology, Pediatrics|
|Last Revised||May 11, 2011|
Last Revised: April 11, 2012
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