The allergy is a disease due to hyperactivity of the immune system, in particular mast cells, against harmful substances but not recognized as such by the body. When an allergen comes in contact with the body, they are freed from connective tissue mast cells that are covered with immunoglobulin type E and envelop the molecule. The contact between IgE and allergen free from a number of mast cell granules containing mainly histamine and heparin to facilitate the expulsion of the allergen by the body.
This pathology may present with various symptoms depending on the mode of exposure of the body to the allergen. The most common allergies are caused by inhalation of the substance, but it can also contract the allergen ingestion or contact.
A second exposure can have various symptoms such as asthma, allergic rhinitis, hives, difficulty breathing, dermatitis, gastritis, nausea, headache, anaphylactic shock, and others; all due to the presence of the allergen in certain districts of the organism.
The greater the exposure to the allergen, the greater will be the activity of the immune system against it, causing allergic symptoms gradually stronger.
The activity of the laboratory for analysis, through the use of specific reagents, allows to diagnose the susceptibility of an individual to a certain molecule potentially allergenic.
In this way it is possible to prevent or minimize exposure of the patient.