JOURNAL ARTICLE

De novo WDR45 mutation in a patient showing clinically Rett syndrome with childhood iron deposition in brain

Chihiro Ohba, Shin Nabatame, Yoshitaka Iijima, Kiyomi Nishiyama, Yoshinori Tsurusaki, Mitsuko Nakashima, Noriko Miyake, Fumiaki Tanaka, Keiichi Ozono, Hirotomo Saitsu, Naomichi Matsumoto
Journal of Human Genetics 2014, 59 (5): 292-5
24621584
Rett syndrome (RTT) is a neurodevelopmental disorder mostly caused by MECP2 mutations. We identified a de novo WDR45 mutation, which caused a subtype of neurodegeneration with brain iron accumulation, in a patient showing clinically typical RTT. The mutation (c.830+1G>A) led to aberrant splicing in lymphoblastoid cells. Sequential brain magnetic resonance imaging demonstrated that iron deposition in the globus pallidus and the substantia nigra was observed as early as at 11 years of age. Because the patient showed four of the main RTT diagnostic criteria, WDR45 should be investigated in patients with RTT without MECP2 mutations.

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