Deafness, Autosomal Dominant 28, also known as dfna28, is related to sensorineural hearing loss and autosomal dominant nonsyndromic deafness. An important gene associated with Deafness, Autosomal Dominant 28 is GRHL2 (Grainyhead Like Transcription Factor 2). Affiliated tissues include brain, and related phenotypes are Increased shRNA abundance (Z-score > 2) and hearing/vestibular/ear