Fig. 3From: Nicotinamide reverses deficits in puberty-born neurons and cognitive function after maternal separationNeuronal apoptosis in the hippocampal dentate gyrus by TUNEL. A, B Neuronal apoptosis in the DG at PND40 was assessed by TUNEL staining. C, D Neuronal apoptosis in the DG at PND65 was assessed by TUNEL staining. Original magnification × 200. Data are presented as mean ± SEM for each group (n = 4 per group). P values were calculated using Student’s t-test. n.s. not significant; **p < 0.01Back to article page