Published On: Fri, Sep 21st, 2012

Bronchial Asthma and Potential Triggers

Tagged with: |

What is Bronchial ?

is an obstructive respiratory disorder. Asthma is generally a condition that is characterized by reversible bronchospasm and chronic inflammation of the airway passages due to irritant stimuli.

Who are effected by Asthma?

It is a commonest chronic disease in in the economically developed countries and is also common in adults. The incidence of Asthma has been increasing in the recent years.

Why does Asthma occur?

Asthma is thought to be due to the genetic predisposition in the individuals due to the hyper reactivity in the airways.

Causes of Asthma:

Asthma is caused due to the exposure of susceptible individuals to certain substances (allergens/triggers), which induces marked bronchospasm and airway inflammation. The individuals with Asthma produces large amount of the antibody IgE. These IgE antibodies attach to the mast cells present in the tissues. If the individual is exposed to a trigger, like pollen it results in allergen-binding mast cell-bound IgE. This in turn causes the release of certain inflammatory mediators like histamines, leukotrienes and eosinophilic chemotactic factor. The response of the patient to these triggers can be divided into two phases like early phase and late phase.

List of the potential Asthma triggers:

  • Allergens like pollen, fungi, pet dander, dust mites
  • Cold air
  • Pollutants
  • Strong emotions
  • Cigarette smoke
  • Respiratory tract infections
  • Exercise
  • Irritants such as ammonia and sulphur dioxide
  • Capsaicin
  • Endogenous inflammatory mediators

Related posts

Recent Posts