KCNJ10 and sensorineural hearing loss disorder: However, the actual contribution of FOXI1 and KCNJ10 mutations to SNHL may be more limited, as illustrated by several subsequent studies in which either no FOXI1 variants (Wu et al., 2010; Mercer, Mutton & Dahl, 2011; Lai et al., 2012; Chen et al., 2012; Chai et al., 2013), or no KCNJ10 variants (Mercer, Mutton & Dahl, 2011; Chen et al., 2012) were identified.