Allergy on a domestic dust
The amount of dust in a house varies in wide limits – depending on the location of house, climate, season. So, in the rural house of dust less than, than in the apartment of city dweller, and within the limits of one house there is a difference between her
amount in a bathroom and bedroom…
Unchanging only that any domestic dust is a complex set of allergens main from which is a tick of domestic dust.
Claws of domestic dust
Claws (Acarida) are a tiny arthopods (like spiders), invisible with a naked eye a diameter of body is an about 0,3 mm).
Two types of claws, dwellings in a domestic dust, are able to cause an allergy: Dermatophagoides pteronyssinus and Dermatophagoides farinae.
These claws feed on the scales of слущенного horny layer of skin, which makes most part of domestic dust.
Claws dwell in beds and bed belongings (pillows, матрацах, blankets of and other) – there, where a man loses most of horny scales at the friction of skin during sleep. However only horny scales to these claws not enough. They live in symbiosis with плесневыми microfunguss, dwellings in матрацах.
It will be interestingly you to know that for patients with sensitization to the claws an allergy is marked also on their excrements which on the nature are ideal allergens. Abed there are more claws, what on the floor in a bedroom. One gramme of dust from матраца can contain from 200 to 15000 claws!
The body of asleep man is able to warm up a bed to 20-30° With and additionally to create humidity are ideal terms for the vital functions of claws, and also mould with which they live in symbiosis and which is fed.
An allergy on a domestic dust (actually, on claws) most often shows up as asthma and rhinitis, rarer – conjunctivitis. An attack begins then, when a patient wakes up. Symptoms are marked during throughout the year, but patients feel worse in autumn and the winter – when humidity of air is higher.