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asthma trigger is a factor that can lead to sudden
difficulty breathing or other symptoms of asthma (asthma attack).
Some triggers are substances a person may be allergic to (allergens). Allergens cause the body's natural
defenses (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
Other triggers can cause asthma symptoms without affecting
the body's immune system. These include:
Gibson PG, et al. (2003). Gastro-esophageal reflux
treatment for asthma in adults and children. Cochrane Database of Systematic Reviews (1). Oxford: Update Software.
March 17, 2011
E. Gregory Thompson, MD - Internal Medicine & Lora J. Stewart, MD, MPH - Allergy and Immunology, Pediatrics
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