Of them, 9 deafness genes expressed more in the apical turn (Pou4f3, Slc17a8, Tmc1, Crym, Otof, Ush1c, Pcdh15, Slc26a5, and Lhfpl5) and six were internal controls (Gapdh, Actb, Rps17, Rpl30, Atp6, and Ipo8). This evidence concerns the gene CRYM and deafness.