Fig. 2From: Association of brain-derived neurotrophic factor levels and depressive symptoms in young adults with acne vulgarisComparison of the serum levels of BDNF in acne vulgaris patients with depression (N = 20), acne vulgaris patients without depression (N = 98), and healthy control (N = 59). In general, lower percentages of BDNF were observed in acne vulgaris patients with depression. Horizontal bars show mean ± SD; BDNF, brain-derived neurotrophic factor (*P < 0.05, ** P < 0.001)Back to article page