Fig. 5. Shows the time table of mi-RNAs expression at development and early steps after birth. miR-183 family is a subgroup of miRNAs that has been already investigated more frequently. miR-183 are expressed initially in otic vesicle at E9.5, which continues till reaching into cochlear-vestibular ganglion and neural tube at E11.5 and E17.5. The above expression has been reported in cochlear hair cells till p30 in some studies. Other miRNAs were identified by ISH. ^*represents the miRNAs that were tested only at this step [56]. Adapted from Rudnicki, et al. EMBO Mol Med 2012;4:849-59. [56].