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Determination of Ang II levels. The concentrations of Ang II in (A) lung homogenates and (B) serum were determined using ELISA. Data are presented as mean ± standard error of the mean from three independent experiments (n=10 per group). **P<0.01 vs. Con group; ##P<0.01 vs. ALI group. Ang II, angiotensin II; Con, normal control group; ALI, smoke inhalation group; ALI + Pue, puerarin treatment plus smoke inhalation group.
