Search results
Results from the WOW.Com Content Network
Anaphylaxis is a severe allergic reaction of rapid onset affecting many body systems. [5] [8] It is due to the release of inflammatory mediators and cytokines from mast cells and basophils, typically due to an immunologic reaction but sometimes non-immunologic mechanism. [8]
Mast cell activation syndrome (MCAS) is a term referring to one of two types of mast cell activation disorder (MCAD); the other type is idiopathic MCAD. [1] MCAS is an immunological condition in which mast cells, a type of white blood cell, inappropriately and excessively release chemical mediators, such as histamine, resulting in a range of chronic symptoms, sometimes including anaphylaxis or ...
Also, shellfish allergy is the most common cause of anaphylaxis in adults and adolescents particularly in East Asian countries like Hong Kong, Taiwan, Singapore, and Thailand. [95] Individuals in East Asia have further developed an allergy to rice, which forms a large part of their diet. [100]
There is a wide range of allergies—some can cause more minor symptoms like a runny nose, while others can lead to severe and potentially life-threatening reactions like anaphylaxis.
The immune system will produce immunoglobulin E, IgE, antibodies for each allergen. The antibodies will cause cells in the body to produce histamine. This histamine will act on different areas of the body (eyes, throat, nose, gastrointestinal tract, skin or lungs) to produce symptoms of an allergic reaction.
The cause is typically the eating of eggs or foods that contain eggs. Briefly, the immune system over-reacts to proteins found in eggs. This allergic reaction may be triggered by small amounts of egg, even egg incorporated into cooked foods, such as cake. People with an allergy to chicken eggs may also be reactive to goose, duck, or turkey eggs ...
Rosacea. What it looks like: Rosacea causes redness and thick skin on the face, usually clustered in the center.Easy flushing, a stinging sensation, and small, pus-filled pimples are other common ...
This results in runny nose, itchiness, shortness of breath and potentially anaphylaxis. Depending on the individual, the allergen and the mode of introduction, the symptoms can be systemwide (classical anaphylaxis) or localized to particular body systems; asthma is localized to the respiratory system, while eczema is localized to the skin. [34]