Expression of NOD1 and NOD2 mRNAs in the eye. (A) RT-PCR in whole eye of NIH, Balb/c, and C57BL/6 mice. Lane M corresponds to 100 bp molecular ladder. (B) Intensity of mRNA expression of NODs in the eye. Each bar shows the median (SD) of the relation NOD/β actin mRNA expression in the whole eye of 10 NIH, five Balb/c, and five C57BL/6 mice, respectively. Horizontal lines show statistical difference (p<0.05) by Kruskal-Wallis test. (C) mRNA expression of NODs in different eye compartments of Balb/c mice. AP, anterior portion; PP, posterior portion; CF, corneal fibroblasts.