Figure 2From: Long-term effects of three Tiao-Bu Fei-Shen therapies on NF-κB/TGF-β1/smad2 signaling in rats with chronic obstructive pulmonary disease Bronchiole wall thickness in rats treated with Bufei Jianpi, Bufei Yishen, Yiqi Zishen granules or aminophylline at week 20 and 32. ** P<0.01, vs model group; ## P<0.01, vs Bufei Jianpi group; ΔΔ P<0.01, vs Bufei Yishen group; ▲▲ P<0.01, vs Yiqi Zishen group; ○ P<0.05, ○○ P<0.01, vs Week 20 in the same group.Back to article page