Fig. 4From: Role of Free Radicals and Poly(ADP-ribose) Synthetase in Intestinal Tight Junction PermeabilityFreeze-fracture replicas. (A) Of shamoperated iNOS WT mice, (B) zymosan-treated iNOS WT mice, and (C) zymosan-treated iNOS KO mice. There are no differences in strand number or depth in ileum. Original magnification 68,000 X. iNOS, inducible nitric oxide synthase; WT, wild type; KO, mice lacking iNOS.Back to article page