Exploration of Asthma & Allergy
Metabolic dysfunction is associated with non-eosinophilic asthma phenotype: a retrospective cross-sectional study
By E. Pehlivanoglu, Ülker İrem İlhan, Furkan Güney and 3 others.
Abstract
Aim
Asthma is a heterogeneous airway disease comprising distinct inflammatory phenotypes with variable clinical characteristics and treatment responses. Increasing evidence suggests that obesity-related metabolic dysfunction contributes to asthma pathogenesis; however, its relationship with eosinophilic asthma remains incompletely understood. This study aimed to evaluate metabolic dysfunction in patients with asthma and investigate its association with the eosinophilic phenotype using multiple insulin resistance-related metabolic indices.
Methods
In this retrospective cross-sectional study, 90 patients with asthma and 131 healthy controls were included. Metabolic dysfunction was assessed using body mass index (BMI), homeostatic model assessment for insulin resistance (HOMA-IR), triglyceride-glucose (TyG) index, cholesterol-glucose (CHG) index, and metabolic score for insulin resistance (METS-IR). Eosinophilic asthma was defined as a peripheral blood eosinophil count ≥ 300 cells/µL. Group comparisons and multivariable logistic regression analyses were performed to identify factors associated with eosinophilic asthma.