Allergic diseases
The allergy puts briefly is to some material allergy. When you eat up, trace to or inhales some material time, the body can have the excessive response; Causes this kind of response the material is so-called 鈥渢he anaphylactogen鈥. In the normal situation, the body can make the immune body to use for to protect the body not the violation which abhors gets sick; But the allergy body actually will be normal the harmless material to take for will be the harmful thing, will produce the immune body, this material will become one kind 鈥渢he anaphylactogen鈥. This kind of allergic reaction can cause some bodily question, but these questions will usually not occur on the normal person body.
Allergy is a disease of civilization. The allergy medicine (allergic) is divided into 4 different types, and Roman numerals I to IV named.The most common is the type I and type IV.I type sometimes referred to as “atopic” or “immediate allergic.” For example, the human body in the insect sting for a few seconds after the injury will respond to animal hair, pollen allergies and allergic reactions in a few minutes there, the food allergy is the time to 30 minutes. On the other hand, IV allergic-type reactions will be much slower pace symptoms in a day or a few days to appear.Ornaments such as allergies and many types of occupations such as allergies. As a result, the people called “delayed-type allergic.”
Allergies (that is, allergic) There are many versions of the definition, in order to elaborate on this important issue and to ensure that medical workers in a unified concept of the exchange, WAO recommended a set of internationally harmonized definitions and terminology. Prior to that, Europe and allergy Clinical Immunology Society has published “a revision of the definition of immunity law” and recommended the use of this terminology (Ref: Johansson et al. Allergy 2001). On this basis, WAO once again been modified and supplemented, and that promote the use of these Sets-to-date version (Ref: Johansson et al. JACI, 2004).
Allergy: Allergy refers to the mechanism by the immune reaction induced by high-sensitivity. Allergens can be body fluids (antibody) or cell-mediated immune mechanisms. In most cases, an allergic reaction, IgE antibodies belong to the category, these individuals can be classified To suffer from IgE-mediated allergic reactions. However, not all of the “specific reactive” (atopy) will occur with individual IgE related to “an allergic reaction.” In the non-IgE-mediated allergic reactions, the antibody also May belong to a class of IgG, for example: dextran contains the immune complex resulting from anaphylactic shock and is now rarely seen in the serum and disease, which was previously attributed to the three-allergic reactions. Suffering from the allergic bronchopulmonary aspergillosis (ABPA ) Patients, IgE and IgG antibodies can be detected. Allergic contact dermatitis is for the cell-mediated allergic diseases.
Allergens: with the majority of IgE and IgG antibody response occurred in the allergic protein used to be. They are often a side-chain hydrocarbons, but in some cases, simple carbohydrates can be used as allergens. In a few cases, some of the low-molecular-weight The chemicals, such as: isocyanates and anhydride can be used as antigen and a half, but still classified as belonging to the IgE antibody allergens. Allergic contact dermatitis cases in a typical small molecule used to be allergic to the chemicals, Such as: network, nickel and formaldehyde, which can react with T cells.
Specific reactive (atopy): reactive with a specific individual and / or family preference. But also occur in children or adolescents. When the individual first contact with allergens (protein) can occur when the response to allergens and produce IgE antibodies. These reactions can lead to a number of specific clinical symptoms, such as asthma, nasal - eye conjunctivitis, or rash, and so on. “Specific response” and “specific response of the” definition is limited to those with a genetic predisposition, and often the environment See allergens (for the majority of people do not have a reaction) can occur and long-term response to allergens produce IgE antibodies specific individuals. Therefore, the response of specific clinical refers to the IgE antibody response to a high of individuals, it can be After those in clinical serology, skin test or examination confirmed the individual. Allergic symptoms occurred in a “specific response” when the individual can be said to be specific reactivity, such as atopic asthma (atopic asthma). However, the IgE -Mediated asthma generally should not be collectively referred to as atopic asthma. Positive skin test and IgE antibodies appear as a judge should not be whether the individual has a specific reaction of the only indicators.
Hypersensitivity: is the normal contacts within the tolerance threshold stimulus after the occurrence of clinical symptoms or signs.
Non-allergic hypersensitivity: Non-allergic hypersensitivity is used to describe the immune mechanism has not been confirmed by the hypersensitivity of terms.
