(A) NAG (OD values) was quantified in skin ulcers collected on days 2, 7, and 14 from the vehicle (PBS/glue), Un-MS, soluble LXA4, and LXA4-MS groups (n = 5 ulcers/ group). (B) ELISAs were used to measure IL-4 production in skin ulcers collected on day 14 from the vehicle (PBS/glue), Un-MS, soluble LXA4, and LXA4-MS groups. Basal levels were also assessed. Data represent means ± SEM (n = 5 ulcers/ group). One-way ANOVA was done to determine statistical significance (p < 0.05) and indicated as follows: *, demonstrated significant differences compared to normal tissues (dashed line); #, LXA4-MS vs. Vehicle (PBS/glue); $, LXA4-MS vs. Un-MS; and &, LXA4-MS vs. soluble LXA4.