VDR and esophagitis: The relative quantity of VDR mRNA was not significantly different in normal esophagus (1 ± 0.67) compared to esophagitis (0.78 ± 0.89, p = ns), BE (2.23 ± 1.62, p = ns) and AC (0.97 ± 0.99, p = ns), suggesting a constitutive expression of this receptor in these different esophageal conditions (Figure 1B).