Allergy has a broad spectrum of appearance, and often the symptoms for every person are different. The reasons for its development can vary from environment through dust mites to the chemistry of each body and the way it accepts different substances.
Very often allergy is caused by changing of the seasons, various food intolerances and DNA code parameters. Some people suffer congenital allergy due to genes repeatability where others develop it later on. As doctors say, in medicine 2+2 does not always equal 4.
Therefore it is not necessarily one of the parents to suffer allergy of any kind to be certain the next generation will have it too. As well is not out of the question for the allergy to appear if none of the parents has any allergic reactions. This being said, we can view allergies as a mixture of congenital and acquired reasons.
The term, which provides a general name such “strange diseases” for which there is a family history Atopy.
Atopy is a condition in which there is a hereditary genetic predisposition to allergy at the expense of more strong ability to form IgE antibodies than others. IgE antibodies are immunoglobulins that are responsible for the development of allergic reactions.
Due to receiving an allergen in the body, in some people begin sudden and intensive formation of IgE antibodies which are directed against the particular allergen. When a person’s healthy content of this immunoglobulin in the blood is too low. A special property of IgE is that it is firmly joined to the surface of individual cells – mast cells located in all organs and tissues, and basophilic leukocytes circulating in the blood.
In this way, these cells receive a unique recognition specifically of this allergen, which has caused the formation of IgE antibodies. Armed with this tool, cells are prepared for the next encounter with the allergen, while the body acquires a particular sensitivity to a given allergen and if accomplished in meeting the body to an allergen, this causes a chain of subsequent allergic reactions.
More likely, however, the ability, following the row of the IgE antibodies is not the only form of predisposition to allergy. Observations show that the cause might be, for example, greater activity of cells involved in the allergic process, higher sensitivity of tissues, etc., but still within the family and hereditary.
There are significant steadily increasing numbers of new products with allergenic properties, which previously were not as many as they are nowadays. On the market are being sold some products that have dubious origin and content. Due to the large supplying of foods, cosmetics, and other substances, the products that remained pure are getting less and less every day, or the prices for real products increase proportionally to the quality.
These are well-known factors such as increased content of SO2, NO2 in the air, connected with the environmental pollution of goods of the manufacturing activity of man, cigarette smoke, the combustion gasses of internal combustion engines and. Such factors substantially enhance allergic reactions.