Figure 1

Bar graph summarising latency (in minutes from time of gavage) for Evans Blue dye to be visible in the faecal droppings of WT, TLR2/4−/−, TLR4−/− and MyD88−/− mice with pre-injection of saline (white) or morphine (black). Data is expressed as mean ± SEM. Bars not sharing the same letter annotations are statistically different (P < 0.05; n = 5 per group).