Post-hoc analysis showed that, compared to the control group, the tinnitus group had significantly increased NR2B mRNA levels in the cochlea (3.7±0.5 versus 2.3±0.1, p<0.001) and IC (1.6±0.6 versus 1.0±0.4, p = 0.003). This evidence concerns the gene GRIN2B and Tinnitus.