(A) Perfusion of the femoral artery subjected to ligation and that of the contralateral nonligated femoral artery is evaluated by LDPI in TLR4 Flox, TLR4 PF4, WT (C57BL/6), and NLRP3−/− mice at baseline (day 0), shortly after FAL induction (day 1), and on days 7 and 14. (B) Two weeks after the induction of FAL, the ischemia/nonischemia perfusion ratio is increased in TLR4 PF4 mice as compared with that in TLR4 Flox control mice. (C) Two weeks after the induction of FAL, the ischemia/nonischemia perfusion ratio is increased in NLRP3−/− mice as compared with that in WT (C57BL/6) control mice. Data are presented as mean ± SD for N≥3 and at least three separate experiments in all studies. *p < 0.05, ***p < 0.001 (2-way ANOVA with Bonferroni post-hoc test in B, C).