Fig. 3From: Immune response to Propionibacterium acnes in patients with sarcoidosis – in vivo and in vitroCytokine production after P. acnes stimulation. Boxplots of GM-CSF (a) and TNF-α concentration (b) in supernatant of BAL cells from patients with sarcoidosis (n = 15, grey bars) and healthy volunteers (n = 10, white bars) that were stimulated with heat-killed P. acnes or left untreated (*p < 0.05, **p < 0.005)Back to article page