Hereditary deafness is divided into syndromic forms (in which hearing loss is associated with a variety of other anomalies) and non-syndromic forms. Non-syndromic forms are responsible for 70% of the cases of hereditary etiology and syndromic cases represent 30% of them. Among the forms of heritage, autosomal-recessive inheritance is the most frequent one (75%-85%), followed by autosomal-dominant inheritance (12-13%) and X-linked or mitochondrial, with 2-3% of the cases of non-syndromic hearing loss. X-linked deafness is clinically and genetically heterogeneous disorder. PRPS1 and POU3F4 have been identified as the genes to be implicated in X-linked non-syndromic hearing loss.
Liu X, Han D, Li J, Han B, Ouyang X, Cheng J, Li X, Jin Z, Wang Y, Bitner-Glindzicz M, Kong X, Xu H, Kantardzhieva A, Eavey RD, Seidman CE, Seidman JG, Du LL, Chen ZY, Dai P, Teng M, Yan D, Yuan H
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Loss-of-function mutations in the PRPS1 gene cause a type of nonsyndromic X-linked sensorineural deafness, DFN2.
Zong L, Guan J, Ealy M, Zhang Q, Wang D, Wang H, Zhao Y, Shen Z, Campbell CA, Wang F, Yang J, Sun W, Lan L, Ding D, Xie L, Qi Y, Lou X, Huang X, Shi Q, Chang S, Xiong W, Yin Z, Yu N, Zhao H, Wang J, Wang J, Salvi RJ, Petit C, Smith RJ, Wang Q
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Mutations in apoptosis-inducing factor cause X-linked recessive auditory neuropathy spectrum disorder.
