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Effects of ECC-BYF III on Pkm2/Nrf2 signaling pathway in lung tissue of COPD rats. (A–D) Pkm2, Nrf2, GCLC and GCLM mRNA expression in lung tissue; (E–I) Pkm2, Nrf2, GCLC and GCLM levels as assessed by Western blot. All data are represented as mean ± SD (n=3). *P < 0.05 and **P < 0.01 as compared to Normal group, #P < 0.05 and ##P < 0.01 as compared to Model group.
