Bronchial Asthma
Chronic inflammatory airway disease with bronchial hyperresponsiveness and variable airflow obstruction
Educational content only — not medical advice.
Anatomy
Expiratory wheezing, nocturnal dry cough, chest tightness, episodic shortness of breath.
Action
Type 2 helper T-cell activation drives eosinophilic infiltration and mast cell degranulation, inducing airway smooth muscle spasm, mucosal edema, and mucous plugging.
Clinical notes
Inhaled corticosteroids (ICS) serve as cornerstone maintenance controller, coupled with rapid-acting beta-agonists (SABA/formoterol) for acute relief.