Fig. 1From: Substance P enhances lactic acid and tyramine production in Enterococcus faecalis V583 and promotes its cytotoxic effect on intestinal Caco-2/TC7 cellsLIVE/DEAD analysis of E. faecalis V583 by confocal microscopy after 2 h exposure to SP. Viable (green bacteria) stained with SYTO 9, dead (red) bacteria stained with PI. a Untreated V583, b V583 + 10−6 M SP, c V583 + 10−4 M SP, d V583 + 10−2 M SP. Scale bar 5 µmBack to article page