The study aimed to compare the systemic proteomic profiles of frequent exacerbators (FE) and non-frequent exacerbators (NFE) among COPD patients, alongside a reference group of healthy controls (HC) and patients during an exacerbation (AE).
Analysis included 40 stable COPD patients (20 FE and 20 NFE), and results showed 40 different proteins in FE, 10 in NFE, and 63 in AE compared to HC.
Results indicated that FE patients had specific inflammatory dysregulations, with some proteomic changes shared with AE, while others were unique to exacerbation episodes.