Thus,

The main reasons are unknown, but in the next

very strongly suspected of smoking, air pollution

infections, allergies, family history;

Hereditary factors (eg, alpha-1-anti - trypsin) failure). In emphysema, alveolar wall destruction and

resulting bronchioles lose their structural support. Thus,

bronchioles collapse when the air exhaled. In emphysema the air

narrowing the structural and permanent, unlike asthma >> << where he is working. The main cause of damage to the alveoli due to the

inflammation caused by irritants. If the inflammation long

position, permanent damage may occur. Inflammation leads to an increase in the number of white

cells and they secrete enzymes

(especially neutrophilic elastase), which damage connective tissue in the

walls of the alveoli. In addition, smoking affects the lungs

defense damage tiny hairs-like cells (cilia) lining

airway, which usually carry mucus toward the mouth and

help expel bacteria and toxic substances. The liver produces a protein called alpha-1

anti-trypsin, the main role is to prevent neutrophilic elastase

damage to the alveoli. However, in rare hereditary condition,

is a lasix 20 mg daily deficiency or absence of this enzyme. These people

, emphysema develops in early middle age, especially in smokers.

.