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Effect of perinatal nicotine exposure on lung myogenic proteins α-smooth muscle actin (SMA), fibronectin, and calponin. Compared to controls (C1, C2), at postnatal day 21, whole lung protein levels of α-SMA, fibronectin, and calponin, normalized to GAPDH levels, increased significantly in perinatally nicotine (N1, N2) exposed animals. N = 6, *P < 0.05 versus control.
