Objective To investigate the variance of the methyl-CpG-binding protein 2(MeCP2) expression in the cochlear nuclei of BALB/c mice with age-related hearing loss.Methods The auditory brain stem response(ABR) thresholds in 3,6,12 and 18 month old BLAB/c mice were measured.The expression of MeCP2 mRNA was detected and compared in the cochlear nuclei of BALB/c mice among four age groups(3-,6-,12-and 18-month-old) by reverse transcription polymerase chain reaction(RT-PCR).Results The ABR thresholds in 3,6 and 12 month old BALB/c mice were(24...