Pediatric Allergic Rhinitis
The best-known mediators are histamine, prostaglandin D 2, tryptase, heparin, and platelet-activating factor, as well as leukotrienes and other cytokines. These substances produce 2 types of reactions ... in turn, release their inflammatory mediators ...
Patient Education: The role of antihistamines in treating allergies
These interactions set off a series of inflammatory reactions in the body. What are antihistamines? An antihistamine acts as a competitive antagonist by occupying the histamine receptor on effector cells. However, it does not prevent the release of ...
Migraine Medications - Allergies vs Reactions
A reaction is triggered, and the body releases chemicals such as histamine and leukotrienes ... that your doctor be informed of the reaction and the symptoms you suffered during the reaction. It’s important that records of your reaction are kept so ...
White blood cells in lung produce histamine seen in allergies
In a surprise finding, scientists have discovered that histamine, the inflammatory compound released during allergic reactions that causes runny nose ... “We hypothesized that an infection in the airway would release histamine from mast cells, and ...
What causes hives to appear in a food-allergic reaction?
Sicherer: Hives, also called urticaria, develop when allergy cells in the skin release chemicals, including histamine ... while hives are classic sign of an allergic reaction, they do not always occur during allergic reactions or anaphylaxis.