Additional file 1 of Suppressor of variegation 3–9 homologue 1 impairment and neutrophil-skewed systemic inflammation are associated with comorbidities in COPD

Additional file 1: Figure 1. The levels SUV39H1 proteins are reduced in the peripheral blood mononuclear cells (PBMCs) of COPD patients. Figure 2. The proportion of Neutrophilia in COPD patients compared with all comorbidity groups.