A Novel Asp121Asn Mutation of Myelin Protein Zero Is Associated with Late-Onset Axonal Charcot-Marie-Tooth Disease, Hearing Loss and Pupil Abnormalities
单位：[1]Department of Neurology, Peking University Third Hospital, Beijing, China,[2]Department of Neurology, China-Japan Friendship Hospital, Beijing, China,[3]Department of Radio-Diagnosis, China-Japan Friendship Hospital, Beijing, China
Myelin protein zero (MPZ) is a major component of compact myelin in peripheral nerves. Mutations in MPZ have been associated with different Charcot-Marie-Tooth disease (CMT) phenotypes (CMT1B, CMT2I/J, CMTDI), Dejerine-Sottas syndrome, and congenital hypomyelination neuropathy. Here, we report phenotypic variability in a four generation Chinese family with the MPZ mutation Asp121Asn. Genetic testing was performed on nine family members and 200 controls. Clinical, electrophysiological and skeletal muscle MRI assessments were available for review in six family members. A novel heterozygous missense mutation, Asp121Asn, was observed in five affected members of the family. Unaffected relatives and 200 normal controls were without the mutation. Four of the affected members of the family displayed late-onset, predominantly axonal sensory and motor neuropathy, pupil abnormalities, and progressive sensorineural hearing loss. One young affected member presented with Argyll Robertson pupils and diminished deep tendon reflexes in the lower limbs. The MPZ mutation Asp121Asn may be associated with late-onset axonal neuropathy, early onset hearing loss and pupil abnormalities. Our report expands the number and phenotypic spectrum of MPZ mutations.
第一作者单位：[1]Department of Neurology, Peking University Third Hospital, Beijing, China,[2]Department of Neurology, China-Japan Friendship Hospital, Beijing, China,
通讯作者：
推荐引用方式(GB/T 7714)：
Xiaohui Duan,Weihong Gu,Ying Hao,et al.A Novel Asp121Asn Mutation of Myelin Protein Zero Is Associated with Late-Onset Axonal Charcot-Marie-Tooth Disease, Hearing Loss and Pupil Abnormalities[J].FRONTIERS in AGING NEUROSCIENCE.2016,8:doi:10.3389/fnagi.2016.00222.
APA：
Xiaohui Duan,Weihong Gu,Ying Hao,Renbin Wang,Hong Wen...&Dongsheng Fan.(2016).A Novel Asp121Asn Mutation of Myelin Protein Zero Is Associated with Late-Onset Axonal Charcot-Marie-Tooth Disease, Hearing Loss and Pupil Abnormalities.FRONTIERS in AGING NEUROSCIENCE,8,
MLA：
Xiaohui Duan,et al."A Novel Asp121Asn Mutation of Myelin Protein Zero Is Associated with Late-Onset Axonal Charcot-Marie-Tooth Disease, Hearing Loss and Pupil Abnormalities".FRONTIERS in AGING NEUROSCIENCE 8.(2016)
