Fig. 6

Arg metabolism in STH cells in response to IFNγ/LPS treatment. HPLC–MS/MS analysis of Arg (A, **p = 0.0033, ***p = 0.001), citrulline (B, **p = 0.0030) and ornithine (C) levels in STHdhQ7 and Q111 cells in the presence or absence of IFNγ/LPS treatment. N = 3 independent samples under each condition. In A–C, two-way ANOVA followed by Tukey’s multiple comparisons test