- Household allergies - even home run
Types of allergens
Allergens - the substances that cause allergies. These may be proteins, complex compound of nonprotein nature (polysaccharides), common chemicals and certain chemical elements. Simple chemical substances and more complex substances are non-protein nature allergens only after the connection to the tissues of the body proteins. But not every chemical combining with proteins, it is an allergen. Many drugs in the body bind to blood proteins and are allergens.
All allergens are divided into two groups: enter the body from the outside (ekzoallergeny) and formed in the body (or autoallergens endoallengeny). Ekzoallergeny in turn are divided into infectious and non-infectious. For non-infectious allergens include household, epidermal (pet dander), drugs, industrial chemicals, pollen (pollen) and food allergens.
The main role among them is played house dust. This is a complex composition of the allergen, which includes dust particles (with clothing, bedding, etc.), fungi (in wet rooms), pieces of household insects (bedbugs, mites). These allergens often cause allergic respiratory disease - dust allergy. In humans sensitized to a single insect, there is usually a reaction to allergens and other insects of this family.
In recent years become important antigens from different species of Daphnia, since the latter are widely used for feeding aquarium fish and become a cause of allergic respiratory diseases.
Home allergic to house dust
The most active are the beginning of the dust mites. The house dust can be detected up to fifty species of ticks, and 1 g of house dust can be up to several thousand mites. The house dust also contains bacteria (e.g., Staphylococcus), molds and other fungi and so on.
When dust allergies frequently occur immediate type allergic reactions, which proceed with the formation of antibodies, called reagin belonging to the class of immunoglobulin E (IgE). When connecting the reagin with appropriate allergen (antigen) from these cells release mediators (such as histamine), which cause 15-20 minutes after exposure to the allergen allergic reactions.
Allergic reactions of immediate type arising during inhalation from house dust, appear as bronchial asthma, urticaria, edema
Prevention and treatment of edema - it is important to understand the root cause
Angioedema, allergic rhinitis, conjunctivitis. Less experience an allergic reaction of delayed type - dermatitis and eczema. In the development of these diseases is very important hereditary imperfection of the immune system
The immune system - how it works?
- Increased ability to respond to an allergy to the impact of external factors. This condition is called atopy.
Dust allergy is different year-round course, sometimes summer marked improvement associated with a minimum concentration of allergen in the air. Aggravation possible in September and October due to the period of breeding dust mites.
Dust allergy is characterized by distinct remissions (states outside exacerbations) at the termination of contact with the allergen. Joining chronic respiratory diseases and bacterial allergy is rare.
Diagnosis of household allergies
The diagnosis is established household allergens using allergy diagnostic skin tests, which detect household allergens. ALWAYS immunogram, which identifies various violations of the individual components of immunity
Immunity - types and characteristics in children in adults
. Do allergies usually shows a large amount of immunoglobulin E (IgE), which are the antibodies
Antibodies - "soldiers' immunity
to household allergens.
Treatment of household allergies
Treatment household allergies, primarily is to eliminate contact with house dust. If the total exclusion of such contact is not possible, carry out year-round specific (allergen caused by allergies) desensitization - lowering the body's sensitivity to an allergen by subcutaneous injection of allergen extracts in gradually increasing doses, which removes the allergic disposition of the body in relation to a particular allergen.
Home allergy requires careful isolation from the allergen that can be achieved by changing the conditions of life and the maintenance of order in the apartment.