Figure 3From: Expression of transforming growth factor-β (TGF-β) in chronic idiopathic cough TGF-β1 mRNA expression in airway smooth muscle (Panel A) and epithelial cells (Panel B) obtained by laser capture microdissection. TGF-β1 mRNA expression measured by real-time RT-PCR and expressed as a ratio of 18S rRNA is shown for a sample of 4 normal and 4 chronic cough patients. There was no significant difference.Back to article page