Fig 1: S47 mouse macrophages exhibit anti-inflammatory response to Lm infection.a Arginase activity, b NOS activity, and c bacterial CFU, measured in P47 (white) and S47 (black) under indicated conditions (n = 5 biological replicates and three technical replicates). Error bars represent means ± s.e.m. ***P < 0.001, **P < 0.01, *P < 0.05, ns—not significant; by unpaired Student’s t test, relative to P47 mice or to S47 mice where indicated. d Relative expression data of Arg1 and Arg2 by qRT-PCR analyses of male P47 (white) and S47 (black) mouse MDMs. Error bars represent means ± s.e.m. n = 3, **P < 0.01, by unpaired Student’s t test, relative to the uninfected counterpart or to P47 mice where indicated. e mRNA levels of pro- and anti-inflammatory markers in P47 (white) and S47 (black) mouse macrophages measured by qRT-PCR (n = 3 biological replicates and three technical replicates). Error bars represent means ± s.e.m. **P < 0.01, by unpaired Student’s t test, relative to the uninfected counterpart or to P47 mice where indicated. Source data are provided as a Source Data file.