Figure 2.
Total number of remaining spiral ganglion neurons after neomycin deafening. After 1 week of deafness, there were significant reductions in the number of SGNs (P < 0.05), which increased over time (normal vs. 4 weeks of deafness, P < 0.001; normal vs. 7 weeks of deafness, P < 0.001). There were also significant differences among the deafened groups (1 week vs. 4 weeks, P < 0.001; 4 weeks vs. 7 weeks, P < 0.001).