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Quantitative reverse transcription-PCR analysis of lung mRNA expression. Relative mRNA expression of TNF-α (A), IL-6 (B), IL-1β (C), F4/80 (D), TIMP-1 (E), MMP-9 (F), and the MMP-9/TIMP-1 ratio (G) in the lungs of BLM-ILD mice on day 28. Data are shown as mean ± SD (N = 10 mice per group). * p < 0.05, ** p < 0.01, *** p < 0.001, significant differences between the linked groups. NS: not significant.
