A. qRT-PCR analysis of Fam134b gene expression in chondrocytes with indicated genotypes (ctrl=wild type) treated with vehicle (5% ABS) or with FGF18 (50 ng/mL; 16 hours). Fold change values were relative to vehicle and normalized to Cyclophilin gene. Mean +/- standard error of the mean (sem) of N=3 biological replicates. Analysis of variance one way (ANOVA) p<0.0001: Tukey's post hoc test ***p<0.0005; NS not significant. 