This graph shows the reduction in sensory neurons (top) and in hair cells (bottom) between 7-day old wildtype and Brn3c null mutant littermates. Note the sharp reduction to 1% in the cochlear immature hair cells (bottom) whereas spiral sensory neurons (SG) are only reduced by 50% (top). In contrast, 20% immature hair cells could be identified in vestibular sensory epithelia (saccule has been selected; bottom) whereas only around 15% of the vestibular sensory neurons survive to this age (VG; top). For details on the data see Table 1.
Xiang et al. BMC Neuroscience 2003 4:2 doi:10.1186/1471-2202-4-2