Asthma : Causes of

prevalence of asthma, the underlying causes and the mechanism of its development.

Bronchial asthma - a chronic disease of the respiratory tract, manifested by recurring attacks of breathlessness.This is due to the violation of patency of the bronchi due to spasm, mucosal edema and mucus hypersecretion.

Asthma can occur at any age, but more common in children, women and residents of industrial cities.

Causes of asthma

Asthma is infectious and allergic disease, which usually occurs after infectious respiratory diseases (chronic bronchitis, pneumonia, whooping cough, measles, etc.).

As a result of suffering inflammation, exposure to bacterial, viral and other disease-causing factors in the patient's body tissue accumulates exchange products and disrupted bacterial cells (endoallergeny) formed in the body during its fight infection.Thus there is a restructuring of the immune reaction to the formation of increased sensitivity to many other factors (sensitization).

main types ekzoallergenov bronchial

asthma

Very often a change of allergic background arises under the influence of environmental factors of non-communicable (ekzoallergenov).Their conditional release in several groups.

Inhaled allergens:

  • domestic (home and book dust, building materials, mites waste products of living in upholstered furniture, feather pillows, carpets, bacterial spores, yeasts, fungi, found in damp and poorly ventilated areas, air conditioning, ventilationchannels);
  • epidermal (fur, dander, lint, pet, birds, aquarium fish food);
  • pollen (pollen grains and flowering plants, shrubs and flowering trees).

Food allergens:

  • protein foods (milk, fish, eggs, chocolate);
  • plant allergens (strawberries, citrus fruits, beans, etc.);
  • supplements, colorants, preservatives.

drug allergy:

  • antibiotics, sulfonamides and other antibacterial drugs;
  • hypoglycemic drugs and diuretics;
  • antidepressants and antipsychotics, antihistamines and analgesics;
  • vaccines, serums, blood products and other

Insect allergens:

  • bites of flying insects.
  • bites of reptiles and amphibians;
  • contact with animals living in water (jellyfish, fish, crustaceans).

Infectious and parasitic allergens:

  • worms;
  • simple;
  • viruses, bacteria, fungi.

synthetic allergens:

  • professional (especially petroleum products, food and light industries, livestock and others.);
  • intesektitsidy and other substances used in farming;
  • acids, alkalis, oils, organic solvents, volatile substances.

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