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Soini HK, Karjalainen MK, Hinttala R, Rautio A, Hallman M, Uusimaa J. Mitochondrial hearing loss mutations among Finnish preterm and term-born infants. Audiol Res 2017; 7:189. [PMID: 29291046 PMCID: PMC5736999 DOI: 10.4081/audiores.2017.189] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 09/07/2017] [Accepted: 09/07/2017] [Indexed: 01/25/2023] Open
Affiliation(s)
| | | | | | - Arja Rautio
- Faculty of Medicine, Arctic Health and Thule Institute, University of Oulu, Finland
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Jing W, Zongjie H, Denggang F, Na H, Bin Z, Aifen Z, Xijiang H, Cong Y, Yunping D, Ring HZ, Ring BZ. Mitochondrial mutations associated with aminoglycoside ototoxicity and hearing loss susceptibility identified by meta-analysis. J Med Genet 2014; 52:95-103. [PMID: 25515069 DOI: 10.1136/jmedgenet-2014-102753] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Genetic variations, including mitochondrial mutations, are important contributors to hearing loss, especially in children, and newborn genetic screens for hearing loss mutations are becoming increasingly common. Mitochondrial mutations have been linked with ototoxic responses to common antibiotics, therefore understanding the association of these mutations with hearing loss is of special importance. To address the usefulness of screening for these mutations in a clinical setting, we formed a collaboration of clinicians and geneticists to analyse the association of mitochondrial mutations with non-syndromic hearing loss, including the effect of ethnicity, audiological test methods and aminoglycoside exposure. METHODS This survey identified 122 variants in 43 studies that have been assessed for an association with hearing loss, and meta-analysis was performed on clinically relevant subsets. RNA folding and conservation analysis further explored possible relevance of these variants. RESULTS Among all studies, eight variants were found to have significant associations with hearing loss. A partially overlapping set of six variants had significant association with hearing loss when aminoglycoside exposure was assessed. Five of these variants predictive of sensitivity to aminoglycoside spatially co-localise in an RNA folding model. There was little effect of the audiological test method used to assess hearing loss on the association with the variants. CONCLUSIONS Our results found a small set of studied variants had reproducible association with hearing loss, which will help clarify mutations useful in genetic screens for hearing loss. Several of the aminoglycoside exposure-associated mutations may co-localise on folded 12S rRNA, suggesting a functional association between these loci and aminoglycoside-induced hearing loss.
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Affiliation(s)
- Wu Jing
- Institute of Genomic and Personalized Medicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hao Zongjie
- Institute of Genomic and Personalized Medicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Fu Denggang
- Institute of Genomic and Personalized Medicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hei Na
- Institute of Genomic and Personalized Medicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhang Bin
- Wuhan Women and Children Hospital, Wuhan, Hubei, China
| | - Zhou Aifen
- Wuhan Women and Children Hospital, Wuhan, Hubei, China
| | - Hu Xijiang
- Wuhan Women and Children Hospital, Wuhan, Hubei, China
| | - Yao Cong
- Wuhan Women and Children Hospital, Wuhan, Hubei, China
| | | | - Huijun Z Ring
- Institute of Genomic and Personalized Medicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Brian Z Ring
- Institute of Genomic and Personalized Medicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China
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