Fig. 4From: Maternal e-cigarette use can disrupt postnatal blood-brain barrier (BBB) integrity and deteriorates motor, learning and memory function: influence of sex and ageExpression of tight junction proteins ZO-1, claudin-5 and occludin in prenatally e-cig exposed offspring compared to control at A PD7, B PD23, C PD45 and D PD90 by western blot; normalized to β-Actin; n = 6 for PD7 and n = 4 for PD23, PD45 and PD90; *P < 0.05, **P < 0.01Back to article page