It was not found in the dbSNP database, databases of genomes and SNPs in the Chinese population, in 74 patients with sporadic hearing loss, or in 108 normal individuals.We also verified that this AIFM1variant enhanced cell apoptosis rates compared in 293T cells transfected with wild-type AIFM1. Different variations of AIFM1 give rise to different phenotypes in patients, and this is the second reported family with a variant in the C-terminal domain of AIFM1 showing the phenotype of hearing loss and peripheral neuropathy. The gene discussed is AIFM1; the disease is hearing loss disorder.