<p>A: Body weight (g) and relative lung weight (lung weight/body weight) of rats after IUGR (white bars) and control rats (black bars) at days P1 and P70; n = 8–15 for each bar. B: Architectural changes in lung structure were evident in hematoxylin and eosin-stained lung sections from IUGR rats and control rats at day P70. Measurement of septal thickness (µm) and mean linear intercept (MLI; µm) in IUGR rats and control rats (CO) at day P70; n = 6–10 for each bar. C: Assessment of respiratory system compliance by whole body plethysmography in IUGR rats (white bars) and in the control group (CO; black bars) at P70. n = 15–17 for each bar. D: Expression pattern of genes encoding surfactant protein A (SP-A), SP-C, and SPD. IUGR rats (white bars) and control group (black bars). n = 6–15 for each bar. The significance for each bar is indicated by p values, IUGR vs. Co, n.s. = not significant; two-tailed Mann-Whitney test.</p
