Fig. 8From: Fabrication and characterization of metformin-loaded PLGA/Collagen nanofibers for modulation of macrophage polarization for tissue engineering and regenerative medicineThe anti-inflammatory effect of MET-loaded PCL/GEL NFs evaluated on RAW264.7 cells stimulated with LPS/INF-γ. Histograms show the mean values of protein levels of (A) IL-6, (B) TNF-α, and (C) IL-1β and the amounts of (D) IL-6, (E) TNF-α, and (F) IL-1β after ELISA evaluation. All values are expressed as mean ± SEM. *P < 0.05, **P < 0.01; ***P < 0.001Back to article page