Certain immune cells backstab their cellular coworkers during allergic reactions. Mast cells, the security patrols of the immune system, can trigger allergic inflammation when they run into ...

T cells moderate type 4 reactions, and specialists consider this type a delayed hypersensitivity reaction because it usually occurs 48–72 hours after exposure.

Immune cell trapping during allergic responses. Mast cells, residing in tissues and critical for initiating inflammation, are ...

Sugar is found in many parts of our diets, both in natural and manufactured foods. True allergy to sugar does not exist, but sugar intolerances do, which can result in adverse reactions. Cells in ...

Mast cell activation syndrome is a condition that causes mast cells to release an inappropriate amount of chemicals into your body. This causes allergy symptoms and a wide range of other symptoms.

Some B cells also turn into plasma cells, which serve one purpose: to create antibodies, including the provoker of allergies, IgE. In order to cause an allergic reaction, a certain amount of IgE ...

Mast cell activation syndrome can cause temporary allergic symptoms in multiple organ systems. Learn more about common triggers and treatment options.

Researchers have discovered a never-before-identified type of memory B cell, an immune cell that ‘remembers’ what a person is allergic to, potentially opening the door to new therapeutics to ...