Figure 7

Emodin reduces collagen production and ECM deposition in vivo.
Rats were intratracheally injected with a single dose of BLM (3.0 mg/kg) and followed by emodin (20 mg/kg) or vehicle by gavage daily for 21 days. (a) Hydroxyproline content in the lung tissues. (b–d) Real-time PCR was used to detect the mRNA levels of collagen I, collagen III, and TIMP-1 in the lung tissues. Data are expressed as mean ± SD, n = 6, *P < 0.05; **P < 0.01.