Fig. 4
From: Macrophage polarization in periodontal ligament stem cells enhanced periodontal regeneration
Macrophage polarization induced by LPS+IFN-γ/IL-4. a Polarized macrophages displayed different morphologies. b Western blot of iNOS, Arg-1, and β-actin of control expressed by macrophages from different treated groups. c TNF-α secretion of macrophages in each group. Scale bar 50 μm (a). M(-), non-activated macrophages. *p < 0.05