Exposure to Air Pollution Exacerbates Inflammation in Rats with Preexisting COPD
The effect of PM2.5 on airway remodeling in rats with COPD. (a) Immunohistochemical staining of TGF-β, α-SMA, Collagen I, and Collagen III of lung sections in each group (magnification, ×200). (b) Quantitative analysis of TGF-β, α-SMA, Collagen I, and Collagen III using Image-ProPlus 6.0 software. TGF-β1: transforming growth factor-beta 1; α-SMA: α-smooth muscle-actin; IOD: integral optical density. The data are expressed as the ().,.
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