Analysis of bacterial spectrum, activin A, and CD64 in chronic obstructive pulmonary disease patients complicated with pulmonary infections

Figure 1 Comparison of CD64 index and serum activin A levels between chronic obstructive pulmonary disease patients with pulmonary infections and those without. A: CD64 index; B: Serum activin A. ^dP < 0.001.

Figure 2 Pulmonary infections promote activation of the neutrophil activin A/Smad3 signaling pathway. A: Western blot analysis of activin A and Smad3 levels in neutrophils; B: Comparison of the relative gray values of activin A between the chronic obstructive pulmonary disease (COPD) patients with pulmonary infections and those without; C: Comparison of the relative gray values of Smad3 between COPD patients with pulmonary infections and those without. ^dP < 0.001.

Figure 3 Comparisons of expressions of TLR4, MyD88 and NFκB in neutrophils between two groups. A: Western blot bands of TLR4, MyD88 and NFκB in neutrophils; B: Comparison of relative gray values of TLR4 between two groups; C: Comparison of relative gray values of MyD88 between two groups; D: Comparison of relative gray values of NFκB between two groups. ^dP < 0.001.