Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
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.
