Article
An Usher syndrome type 1 patient diagnosed before the appearance of visual symptoms by MYO7A mutation analysis.
International journal of pediatric otorhinolaryngology - 1 Feb 2013
Yoshimura Hidekane, Iwasaki Satoshi, Kanda Yukihiko, Nakanishi Hiroshi, Murata Toshinori, Iwasa Yoh-ichiro, Nishio Shin-ya, Takumi Yutaka, Usami Shin-ichi
Abstract excerpt
Usher syndrome type 1 (USH1) appears to have only profound non-syndromic hearing loss in childhood and retinitis pigmentosa develops in later years. This study examined the frequency of USH1 before the appearance of visual symptoms in Japanese deaf children by MYO7A mutation analysis. We report the case of 6-year-old male with profound hearing loss, who did not have visual symptoms. The frequency of MYO7A...
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