Asthma: A common chronic inflammatory disease

摘要: Asthma is a chronic lung disease which cause inflammation in the bronchioles, narrow airways and characterized by airflow obstruction bronchospasm, coughing, chest tightness, wheezing, shortness of breath referred as asthma attack [1,5,9,16,27,32,52,69,73,78]. The major risk factors are allergens like pollens, dust, smoking, mites bedding chemical irritants [63,85]. may also trigger extreme emotion, anger, fear, cold air physical exercise affects distal parenchyma [10,25,31,33,35,75,76]. Laryngopharyngeal reflux one suspected exacerbating for developing studies going on to understand real association between these two common diseases [44]. Even endocrine disorders obesity diabetes influence prevalence [55,61,68,71].