APOB and atopic asthma: Serum lipoproteins, such as triglycerides, low‐density lipoproteins, cholesterol, and apolipoprotein B, have been associated with more severe airflow obstruction and serum apolipoprotein B with FeNO and blood eosinophils in atopic asthma [21, 22], suggesting that these lipoproteins may be involved in airway wall remodeling.