Figure 5
From: Expression of transforming growth factor-β (TGF-β) in chronic idiopathic cough
Smad2/3 expression in bronchial biopsies. Panel A. Immunofluorescence pictures from confocal microscopy for Smad2/3 activation (red fluorescence) from human bronchial biopsy sections. Nuclei are stained blue with DAPI. For the negative control, the primary antibody was replaced by a normal rabbit immunoglobulin. ASM: airway smooth muscle; EPI: epithelium. Panel B: % of cells with positive nuclear staining for Smad 2/3 in bronchial biopsies from 6 normal and 7 chronic cough patients. *p < 0.05 compared with normal control. NS: not significant.