Immunoglobulin E (IgE) is an antibody that is part of the body's immune system. IgE is produced in response to an allergen, such as a food, pollen, or dust. When IgE binds to an allergen, it triggers the release of histamine and other chemicals, which can lead to allergic reactions. IgE levels can be measured in the blood and can be used to diagnose allergies and other conditions.
What Causes an Increase in IgE?
IgE levels can rise in response to an allergen or other trigger. This can lead to an allergic reaction. Common allergens that can cause IgE levels to increase include pet dander, dust mites, pollen, mold, and some foods. Other triggers for increased IgE levels include infections, medications, and certain autoimmune diseases.
Allergens
Allergens are substances that trigger an immune response in some people. When someone is exposed to an allergen, their body will produce IgE antibodies to fight the allergen. This can lead to an allergic reaction, such as sneezing, wheezing, or hives. Common allergens include pet dander, dust mites, pollen, mold, and certain foods.
Infections and Medications
Infections, such as colds and the flu, can also trigger an increase in IgE levels. Medications, such as antibiotics and non-steroidal anti-inflammatory drugs (NSAIDs), can also cause IgE levels to rise.
Autoimmune Diseases
Certain autoimmune diseases, such as asthma and eczema, can also cause an increase in IgE levels. In these conditions, IgE is produced in response to harmless substances, such as dust or pollen, leading to an allergic reaction.
Conclusion
An increase in IgE levels can be caused by allergens, infections, medications, and certain autoimmune diseases. IgE levels can be measured in the blood and can be used to diagnose allergies and other conditions. Treatment for increased IgE levels can vary, depending on the cause.