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Health

Allergy: Causes

, medical expert
Last reviewed: 23.04.2024
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The cause allergies are very diverse. This is due to the general problem of allergic diseases, since there is still no single etiologic theory that clearly explains the mechanism of allergic reactions. There are several versions accepted by the medical scientific world, and allergists adhere to them in the strategy of antiallergic therapy.

You should look deep into the centuries, spend a little digression into the world of historical artifacts, which testify that in ancient times people also suffered from allergies. Both Hippocrates and Galen not only described the symptoms of diseases similar to allergies in their labors, but also tried to treat attacks of suffocation from the aroma of roses or severe itching after a luxurious feast. The reasons ancient doctors called different. Hippocrates, for example, blamed the cold for triggering asthma. He also included cheese and honey in the ranks of the perpetrators of allergic reactions. Already in those days there was the concept of eczema and asthma. For the past centuries, the search for the main cause of allergic symptoms has not been crowned with success. For the sake of justice, it should be noted that in every century there have been discoveries and breakthroughs that help to study, stop and conquer allergy. In the 19th century, hay fever was first described in detail and its cause was found - the pollen of flowering plants. At the beginning of the XXth century, the term that has existed to this day - an allergy, authorship belongs to the children's doctor, Austrian Van Pirke. A little later, scientists in Germany determined the location of the allergen - serum, and only in the middle of the last century the cause of the aggressive reaction of the immune system to the antigen was specified. American doctors, ethnic Japanese Ishizako, after a series of experiments, were able to find out that the atypical reaction of IgE immunoglobulin was at fault. As other medical scientists have found out, the reason allergy has multiple, more precisely they learned to group by types and categories. Until now, allergy can not be stopped by existing methods and means, according to statistics every year the total number of allergies increases by 5%. It is nevertheless worth noting and the positive side in the process of studying the causes and developing therapeutic techniques that oversee this disease. Diagnostic methods and methods are improved every year, this helps to confirm the allergy in time and begin treatment.

Among those versions that are accepted as basic as the etiological causes of allergies, we can name the following:

trusted-source[1], [2], [3], [4], [5]

Allergies, the causes of which lie in the field of nutrition

Indeed, the number of allergic reactions to foods is increasing every year. It's no secret that the younger generation - children often eat food that is difficult to call healthy. Moreover, the paradox is that the excessive variety of products, their wide range, leads to a weakening of immunity. The human immune system is genetically predisposed to recognize and work with certain substances, which are not so many. Any novelty in the diet is a food stress for the body. In addition, food colorings, additives, flavorings do not contribute to strengthening the protective functions of the body, but on the contrary - they shake them. It is estimated that the average inhabitant of the planet absorbs up to 5 kilograms of harmful food additives every year. In the middle of the 20th century this figure was 0.5 kg. These general assumptions about the power system are taken for the version, but there is also no specific scientific evidence that only food provokes an allergy.

trusted-source[6], [7], [8], [9], [10]

Environmental causes of allergies

Allergy causes also in the sphere that has radically changed over the past millennia, it is about ecology. A huge amount of emissions, gas, chemical, industrial dust obviously do not benefit the health of a person. In large megacities, the number of asthmatics exceeds the number of asthmatic patients in the suburbs by more than three times. Nitrogen dioxide, contained in exhaust gases, directly settles in human lungs, which simply can not remove a large amount of harmful substances in a timely manner. Thus, the air surrounding a person is not so much an allergen as an allergenic medium due to the high concentration of harmful agents.

trusted-source[11], [12], [13], [14], [15]

Medicinal causes of allergy

Pharmacology, which is designed to create medicines to save lives and preserve human health, also, according to one of the theories, is the main reason for reducing immunity and provoking allergies. This is called an allergy to medicines or drug allergy. This type of disease is not primary, the reaction can occur only with the re-admission of a drug, which the body at the first stage of acquaintance perceived as alien.

Among the versions that are recognized as basic, the cause allergies are hereditary. Genetic predisposition to allergic reactions can be transmitted to the baby from the mother.

Allergy causes can also hide in internal, underlying diseases, especially if they are inflammatory, infectious. The products of the vital activity of viruses, bacteria are capable of provoking the production of histamine, which in turn triggers the mechanism of an allergic reaction. Conditionally harmful substances provoking an allergy are divided into endogenous and exogenous.

  • Endogenous (internal) are toxic substances released by microorganisms and the body as a result of inflammations, infections, severe injuries (burns).
  • Exogenous allergens are pollen, medicines, animal wool, household (feathers, fluff), bacterial allergens, food substances.

The cause allergy conceals carefully, however, and the medical science does not stand still. More recently, new safe methods for eliminating (removing) from the blood serum harmful CEC - circulating immunocomplexes have been developed. The pharmaceutical industry annually produces new antihistamines, all the more perfect and safe in the sense of side effects. Thus, the allergy will be defeated, but for now it is worth thinking about reasonable nutrition, strengthening immunity and cleanliness of the environment.

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