Beware Of Allergies In Your Body

Allergy refers to an exaggerated reaction by our immune system, in response in bodily contact with certain foreign substances excessive. Actually, these foreign substances are generally regarded by the body as sessuatu harmless and does not occur in response to people who are not allergic. The bodies of people who are allergic to recognize foreign material and part of the immune system is activated. Allergic materials are called "allergens". Examples of allergens include pollens, dust mites, molds, and foods. To understand the language of allergy is very important to remember that allergens are substances foreign to the body and can cause allergic reactions in certain people.

When allergens come into contact with the body, he causes the immune system to develop allergic reactions in people allergic to it. When you react inappropriately to the allergen are generally not harmful to others, you have an allergic reaction and can be referred to as allergic or atopic. By karananya, people who are predisposed to allergy is called allergic or atopic.

Austrian pediatrician named Clemens Pirquet (1874-1929) first used the term allergy. He referred to both immunity lucrative and dangerous as an allergic hypersensitivity. The word allergy comes from the Greek words "allos," meaning different or changed, and "ergos" meaning work or action. Allergy broadly referred to as "altered reaction". The word allergy was first used in 1905 to describe the adverse reactions of the children given repeated injections of horse serum to fight infection. The next year, the term allergy is proposed to explain the reactivity of these unexpected changes.

The immune system is a defense mechanism which was organized by the body against foreign invaders, particularly infections. His job is to recognize and react to these foreign substances, called antigens. Antigens are substances capable of causing the production of antibodies. Antigens may or may not lead to allergic reactions. Allergens are certain antigens that cause allergic reactions and production of IgE.

The purpose of the immune system is to mobilize its power to assault and destroy the enemy. One way to do this is to create protective proteins called antibodies that specifically targeted against particular foreign substances. These antibodies, or immunoglobulins (IgG, IgM, IgA, IgD), are protective and help destroy a foreign particle by attaching itself to its surface, thus making easier the other immune cells to destroy it. However people who are allergic, develop a specific type of antibody called immunoglobulin E, or IgE, in response to certain foreign materials that are generally harmless, such as cat dander. In summary, the immunoglobulins are a group of the protein molecules acting as antibodies. There are 5 kinds of different types: IgA, IgM, IgG, IgD, and IgE. IgE is the allergy antibody.

In the example of animals cats, father and youngest daughter developed IgE antibodies directed in large numbers against cat allergens, cat dander. Father and daughter are now sensitized or prone to develop allergic reactions on subsequent and repeated exposure to cat allergen. Typically, there are periods of "sensitivity" that range from months to years before an allergic reaction. Although allergic reactions may occasionally occur on first exposure to the allergen, certainly before there is contact so that the immune system to react in this way.