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Ruan Y, Wen C, Cheng X, Zhang W, Zhao L, Xie J, Lu H, Ren Y, Meng F, Li Y, Deng L, Huang L, Han D. Genetic screening of newborns for deafness over 11 years in Beijing, China: More infants could benefit from an expanded program. Biosci Trends 2024; 18:303-314. [PMID: 39183030 DOI: 10.5582/bst.2024.01178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
Genetic screening of newborns for deafness plays an important role in elucidating the etiology of deafness, diagnosing it early, and intervening in it. Genetic screening of newborns has been conducted for 11 years in Beijing. It started with a chip to screen for 9 variants of 4 genes in 2012; the chip screened for 15 variants of those genes in 2018, and it now screens for 23 variants of those genes. In the current study, a comparative analysis of three screening protocols and follow-up for infants with pathogenic variants was performed. The rates of detection and hearing test results of infants with pathogenic variants were analyzed. Subjects were 493,821 infants born at 122 maternal and child care centers in Beijing from April 2012 to August 2023. Positivity increased from 4.599% for the chip to screen for 9 variants to 4.971% for the chip to screen for 15 variants, and further to 11.489% for the chip to screen for 23 variants. The carrier frequency of the GJB2 gene increased from 2.489% for the chip to screen for 9 variants and 2.422% for the chip to screen for 15 variants to 9.055% for the chip to screen for 23 variants. The carrier frequency of the SLC26A4 gene increased from 1.621% for the chip to screen for 9 variants to 2.015% for the chip to screen for 15 variants and then to 2.151% for the chip to screen for 23 variants. According to the chip to screen for 9 variants and the chip to screen for 15 variants, the most frequent mutant allele was c.235delC. According to the chip to screen for 23 variants, the most frequent mutant allele was c.109G>A. The chip to screen for 15 variants was used to screen 66.67% (14/21) of newborns with biallelic variants in the SLC26A4 gene for newly added mutations. The chip to screen for 23 variants was used to screen 92.98% (53/57) of newborns with biallelic variants in the GJB2 gene (52 cases were biallelic c.109G>A) and 25% (1/4) of newborns with biallelic variants in the SLC26A4 gene for newly added mutations. Among the infants with pathogenic variants (biallelic variants in GJB2 or SLC26A4), 20.66% (25/121) currently have normal hearing. In addition, 34.62% (9/26) of newborns who passed the hearing screening were diagnosed with hearing loss. Findings indicate that a growing number of newborns have benefited, and especially in the early identification of potential late-onset hearing loss, as the number of screening sites has increased. Conducting long-term audiological monitoring for biallelic variants in individuals with normal hearing is of paramount significance.
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Affiliation(s)
- Yu Ruan
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing, China
| | - Cheng Wen
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing, China
| | - Xiaohua Cheng
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing, China
| | - Wei Zhang
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing, China
| | - Liping Zhao
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing, China
| | - Jinge Xie
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing, China
| | - Hongli Lu
- CapitalBio Corporation & National Engineering Research Center for Beijing Biochip Technology, Beijing, China
| | - Yonghong Ren
- CapitalBio Corporation & National Engineering Research Center for Beijing Biochip Technology, Beijing, China
| | - Fanlin Meng
- CapitalBio Corporation & National Engineering Research Center for Beijing Biochip Technology, Beijing, China
| | - Yue Li
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing, China
| | - Lin Deng
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing, China
| | - Lihui Huang
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing, China
| | - Demin Han
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing, China
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Pan K, Shang Z, Liu J, Wen Y, Luo J, Zou D, Wang A, Li T, Liao L, Xie P. Newborn concurrent hearing and genetic screening for hearing impairment: A systematic review and meta‑analysis. Exp Ther Med 2024; 28:365. [PMID: 39091413 PMCID: PMC11292177 DOI: 10.3892/etm.2024.12654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 05/31/2024] [Indexed: 08/04/2024] Open
Abstract
Hearing loss is the most prevalent neurosensory disorder in humans, with significant implications for language, social and cognitive development if not diagnosed and treated early. The present systematic review and meta-analysis aimed to determine the rate of hearing screening pass and genetic screening failure [universal newborn hearing screening (UNHS) pass/genetic failure] and to investigate the advantages of combining newborn hearing and genetic screening for newborn hearing impairment. The PubMed, Embase and Cochrane databases were searched from inception to September 2023 to identify studies reporting the combination of neonatal hearing screening with genetic screening. Duplicate literature, unpublished literature, studies with incomplete data, animal experiments, literature reviews and systematic studies were excluded. All the data were processed by STATA15.1 statistical software. A total of nine cross-sectional studies were included in this meta-analysis. The sample sizes ranged from 1,716 to 180,469, and there were a total of 377,688 participants. The pooled results revealed that the prevalence of passing the UNHS while failing genetic screening was 0.31% (95% CI, 0.22-0.41%). The prevalence of UNHS pass and gap junction protein beta 2 and solute carrier family 26 member 4 variant screen failure was 0.01% (95% CI, 0.00-0.02%) and 0.00% (95% CI, 0.00%), respectively, while the prevalence of mitochondrially encoded 12S RRNA variant screening failure and UNHS pass was 0.21% (95% CI, 0.18-0.26%). Combined screening has a significant advantage over pure hearing screening, especially in terms of identifying newborns with mitochondrial gene mutations that render them sensitive to certain medications. In clinical practice, decision-makers can consider practical circumstances and leverage the benefits of combined newborn hearing and genetic screening for early diagnosis, early counseling, and early intervention in patients with hearing loss.
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Affiliation(s)
- Ke Pan
- Department of Clinical Laboratory, Mianyang Maternity and Child Healthcare Hospital, Mianyang, Sichuan 621000, P.R. China
| | - Zhirong Shang
- Department of Clinical Laboratory, Mianyang Maternity and Child Healthcare Hospital, Mianyang, Sichuan 621000, P.R. China
| | - Jialin Liu
- Department of Clinical Laboratory, Mianyang Maternity and Child Healthcare Hospital, Mianyang, Sichuan 621000, P.R. China
| | - Yidong Wen
- Department of Clinical Laboratory, Mianyang Maternity and Child Healthcare Hospital, Mianyang, Sichuan 621000, P.R. China
| | - Jing Luo
- Department of Clinical Laboratory, Mianyang Maternity and Child Healthcare Hospital, Mianyang, Sichuan 621000, P.R. China
| | - Dan Zou
- Department of Clinical Laboratory, Mianyang Maternity and Child Healthcare Hospital, Mianyang, Sichuan 621000, P.R. China
| | - Aichun Wang
- Department of Clinical Laboratory, Mianyang Maternity and Child Healthcare Hospital, Mianyang, Sichuan 621000, P.R. China
| | - Tao Li
- Department of Clinical Laboratory, Mianyang Maternity and Child Healthcare Hospital, Mianyang, Sichuan 621000, P.R. China
| | - Lingyan Liao
- Department of Clinical Laboratory, Mianyang Maternity and Child Healthcare Hospital, Mianyang, Sichuan 621000, P.R. China
| | - Pan Xie
- Department of Clinical Laboratory, Mianyang Maternity and Child Healthcare Hospital, Mianyang, Sichuan 621000, P.R. China
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Ting FN, Kiing JSH, Li WW, Chan YH, Loo JHY, Kang YQ. Prevalence and Profiles of Late-Onset Hearing Loss in Preschool Children with Autism Spectrum Disorder Who Passed Newborn Hearing Screening in a South East Asian Population. J Autism Dev Disord 2024; 54:3336-3346. [PMID: 37480440 DOI: 10.1007/s10803-023-06060-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2023] [Indexed: 07/24/2023]
Abstract
Prevalence of hearing loss in children with autism spectrum disorder (ASD) is uncertain, as it is more challenging to assess hearing function in children with developmental difficulties (DD). We aimed to determine the prevalence and profiles of hearing loss in preschool children with ASD in a Southeast-Asian population who passed newborn hearing screening. A retrospective study of preschool children with DD (ASD, Global Developmental Delay (GDD), and Speech and Language Delay (SLD)) attending the Child Development Unit (CDU) at our hospital was performed. Three hundred and thirty-three children (ASD: n = 129; GDD: n = 110; and SLD: n = 94) underwent hearing assessments. Of these, 10.8% of children (n = 36, comprising 15 with ASD, 12 with GDD and 9 with SLD) had confirmed hearing loss. Hearing loss was predominantly bilateral in children with ASD and GDD; in those with SLD, unilateral and bilateral hearing loss were equally common. Conductive hearing loss occurred as frequently as sensorineural hearing loss in children with ASD and SLD, but was the dominant subtype in those with GDD. Moderate to severe hearing loss (n = 2) was noted only in children with ASD. Children with ASD and GDD required significantly more audiology visits and procedures to obtain conclusive hearing test results, compared to those with SLD. The need to identify hearing loss and monitor for resolution is particularly important in vulnerable populations with communication deficits, such as in those with ASD.
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Affiliation(s)
- Fang Ni Ting
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jennifer S H Kiing
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Child Development Unit, Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore, Singapore
| | - Wei Wen Li
- Child Development Unit, Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore, Singapore
| | - Yiong Huak Chan
- Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jenny H Y Loo
- Department of Otolaryngology, Head & Neck Surgery (Audiology), National University Hospital, Singapore, Singapore
- Department of Otolaryngology, Head & Neck Surgery (Audiology), National University of Singapore, Singapore, Singapore
| | - Ying Qi Kang
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
- Child Development Unit, Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore, Singapore.
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Wilding MR, Hibbert JSR, Tucker JA, Magee CE, Bauer-Staeb C, Wood SA. Prevalence of moderate or greater permanent childhood hearing impairment and effectiveness of targeted surveillance for babies who pass newborn hearing screening. Int J Audiol 2024; 63:596-603. [PMID: 37395525 DOI: 10.1080/14992027.2023.2227763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 04/02/2023] [Accepted: 06/15/2023] [Indexed: 07/04/2023]
Abstract
OBJECTIVE To assess the utility of targeted surveillance for the identification of moderate to profound PCHI in babies who pass newborn hearing screening in England and have risk factors. DESIGN Retrospective analysis. STUDY SAMPLE A total of 3,957,891 children born 01/04/2012-31/03/2018 in England. RESULTS A total of 7148 PCHI cases were identified (1.81 per 1,000 babies). 6,707 followed an immediate referral from the screen (1 per 16 referrals), 51 followed targeted surveillance referral (1 per 540 referrals) and 390 without a referral. Audiology uptake was higher following an immediate referral (96.7% overall, 77.2% within NHSP-defined timescales) than following targeted surveillance (63.8% overall, 51.1% within 52 weeks of birth). The screening was 94.5% sensitive overall, with similar sensitivities for each of the risk factors. General linearised logistic regression models identified syndrome as the risk factor with the highest odds ratio (14.08 for all babies, 22.19 for babies without immediate referral). Close family history of hearing loss was the next highest (10.93 for all babies, 12.29 for babies without immediate referral). CONCLUSION The evidence for a targeted surveillance programme, based on risk factors, for babies in England who pass the newborn screen is not strong.
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Affiliation(s)
| | | | - Julie A Tucker
- Newborn Hearing Screening Programme, NHS England, England, UK
| | | | - Clarissa Bauer-Staeb
- Department of Health and Social Care, Office for Health Improvement and Disparities, England, UK
| | - Sally A Wood
- Newborn Hearing Screening Programme, NHS England, England, UK
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Mattsson TS, Nilsen AH, Wennberg S. Establishment of the Norwegian hearing register for children. Front Hum Neurosci 2024; 18:1400005. [PMID: 39135757 PMCID: PMC11317270 DOI: 10.3389/fnhum.2024.1400005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 07/11/2024] [Indexed: 08/15/2024] Open
Abstract
Introduction The Norwegian Directorate of Health approved the Norwegian Hearing Register for Children in 2022. The main objective of the register is to improve the quality of treatment for children with permanent hearing loss, by measures, follow-ups and monitoring the quality and results of the health care system. Methods Inclusion criteria are children who do not pass universal newborn hearing screening and/or children with permanent hearing loss <18 years of age. Hearing loss is defined as pure-tone audiometry threshold of (PTA4) > 20 dB in at least one ear. Data are registered at the Ear, Nose and Throat departments at inclusion and at follow-ups at the age of 3, 6, 10, and 15 years. The register collects information about the child within a holistic perspective. The key elements of the register are (a) data concerning newborn hearing screening; (b) data concerning hearing, medical information, hearing amplification and intervention (c) patient reported outcome measures registered by caregivers using three questionnaires; Pediatric Quality of Life Inventory, Strengths and Difficulties Questionnaire and Parents' Evaluation of Aural/Oral Performance of Children. Results The register has established four quality indicators regarding newborn hearing screening and early intervention (a) the rate of false positive neonatal screens; (b) testing for congenital cytomegalovirus within 3 weeks of age for children who do not pass newborn hearing screening; (c) audiological evaluation to confirm the hearing status no later than 3 months of age and (d) initiated intervention within 3 months after confirmation of hearing status. Discussion The register will include the total population of hearing impaired children over long time periods. Thus, the register enables each hospital to monitor their quality indicator scores continuously and compare them with national levels in real time. This facilitates and accelerates identification of improvement areas in the hospitals and will be an important contributor for quality improvement in NHS, diagnostics and hearing intervention for children in Norway. In addition, data from the register will be a unique source for research, and study designs with a long follow-up time can be applied.
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Urhoj SK, Morris J, Loane M, Ballardini E, Barrachina-Bonet L, Cavero-Carbonell C, Coi A, Gissler M, Given J, Heino A, Jordan S, Neville A, Santoro M, Tan J, Tucker D, Wellesley D, Garne E, Damkjaer M. Higher risk of cerebral palsy, seizures/epilepsy, visual- and hearing impairments, cancer, injury and child abuse in children with congenital anomalies: Data from the EUROlinkCAT study. Acta Paediatr 2024; 113:1024-1031. [PMID: 38324400 DOI: 10.1111/apa.17136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/18/2024] [Accepted: 01/23/2024] [Indexed: 02/09/2024]
Abstract
AIM The aim is to examine the risk of cerebral palsy, seizures/epilepsy, visual- and hearing impairments, cancer, injury/poisoning and child abuse in children with and without a congenital anomaly up to age 5 and 10 years. METHODS This is a population-based data linkage cohort study linking information from the European Surveillance of Congenital Anomalies network (EUROCAT) and birth registries to hospital discharge databases. We included 91 504 live born children with major congenital anomalies born from 1995 to 2014 from nine EUROCAT registries in five countries and 1 960 727 live born children without congenital anomalies (reference children). Prevalence and relative risk (RR) were estimated for each of the co-morbidities using Kaplan-Meier survival estimates. RESULTS Children with congenital anomalies had higher risks of the co-morbidities than reference children. The prevalences in the reference children were generally very low. The RR was 13.8 (95% CI 12.5-15.1) for cerebral palsy, 2.5 (95% CI 2.4-2.6) for seizures/epilepsy, 40.8 (95% CI 33.2-50.2) for visual impairments, 10.0 (95% CI 9.2-10.9) for hearing loss, 3.6 (95% CI 3.2-4.2) for cancer, 1.5 (95% CI 1.4-1.5) for injuries/poisoning and 2.4 (95% CI 1.7-3.4) for child abuse. CONCLUSION Children with congenital anomalies were more likely to be diagnosed with the specified co-morbidities compared to reference children.
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Affiliation(s)
- Stine Kjaer Urhoj
- Department of Paediatrics and Adolescent Medicine, Lillebaelt Hospital, University Hospital of Southern Denmark, Kolding, Denmark
- Section of Epidemiology, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Joan Morris
- Population Health Research Institute, St George's, University of London, London, UK
| | - Maria Loane
- Institute of Nursing and Health Research, Ulster University, Londonderry, Northern Ireland, UK
| | - Elisa Ballardini
- IMER Registry, Centre for Clinical and Epidemiological Research, University of Ferrara and Azienda Ospedaliero Universitario di Ferrara, Ferrara, Italy
| | - Laia Barrachina-Bonet
- Rare Disease Research Unit, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, Valencia, Spain
| | - Clara Cavero-Carbonell
- Rare Disease Research Unit, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, Valencia, Spain
| | - Alessio Coi
- Institute of Clinical Physiology, National Research Council, Pisa, Italy
| | - Mika Gissler
- Department of Knowledge Brokers, THL Finnish Institute for Health and Welfare, Helsinki, Finland
- Region Stockholm, Academic Primary Health Care Centre, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Joanne Given
- Institute of Nursing and Health Research, Ulster University, Londonderry, Northern Ireland, UK
| | - Anna Heino
- Department of Knowledge Brokers, THL Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Sue Jordan
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Amanda Neville
- IMER Registry, Centre for Clinical and Epidemiological Research, University of Ferrara and Azienda Ospedaliero Universitario di Ferrara, Ferrara, Italy
| | - Michele Santoro
- Institute of Clinical Physiology, National Research Council, Pisa, Italy
| | - Joachim Tan
- Population Health Research Institute, St George's, University of London, London, UK
| | - David Tucker
- Congenital Anomaly Register and Information Service for Wales (CARIS), Public Health Knowledge and Research, Public Health Wales, Swansea, UK
| | - Diana Wellesley
- Clinical Genetics, University Hospital Southampton, Southampton, UK
| | - Ester Garne
- Department of Paediatrics and Adolescent Medicine, Lillebaelt Hospital, University Hospital of Southern Denmark, Kolding, Denmark
| | - Mads Damkjaer
- Department of Paediatrics and Adolescent Medicine, Lillebaelt Hospital, University Hospital of Southern Denmark, Kolding, Denmark
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Johansen L, O'Hare F, Shepard ER, Ayton LN, Pelentsov LJ, Kearns LS, Galvin KL. Exploring the support needs of Australian parents of young children with Usher syndrome: a qualitative thematic analysis. Orphanet J Rare Dis 2024; 19:129. [PMID: 38515174 PMCID: PMC10956185 DOI: 10.1186/s13023-024-03125-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 03/03/2024] [Indexed: 03/23/2024] Open
Abstract
BACKGROUND Advancements in genetic testing have led to Usher syndrome now being diagnosed at a much earlier age than in the past, enabling the provision of early intervention and support to children and families. Despite these developments, anecdotal reports suggest there are substantial gaps in the services and supports provided to parents of children with Usher syndrome. The current study investigated the support needs of parents of children with Usher syndrome Type 1 when their child was aged 0 to 5 years. METHOD Purposive sampling was used, and six semi-structured interviews were conducted with Australian parents of children with Usher syndrome, Type 1. Data was analysed using modified reflexive thematic analysis. RESULTS Four key themes were identified as being central to the support needs of parents of children with Usher syndrome aged 0 to 5 years. (1) Social Needs referred to parents' need for various sources of social support, (2) Informational Needs described the lack of information parents received regarding Usher syndrome from treating professionals, (3) Practical Needs included supports needed to assist parents in managing the day-to-day tasks of caring for a child with a disability, and (4) Emotional Needs represented the emotional support (both formal and informal) that parents needed to be a positive support to their child. CONCLUSIONS Findings provide rich information for relevant support groups, policy makers, individual healthcare professionals, and professional governing bodies regarding the education of stakeholders and the development and implementation of best-practice treatment guidelines.
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Affiliation(s)
- L Johansen
- UsherKids Australia, Mordialloc, VIC, Australia
| | - F O'Hare
- Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, VIC, Australia
- Centre for Eye Research Australia, East Melbourne, VIC, Australia
| | - E R Shepard
- UsherKids Australia, Mordialloc, VIC, Australia
| | - L N Ayton
- Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, VIC, Australia
- Department of Surgery (Ophthalmology), The University of Melbourne, Parkville, VIC, Australia
- Centre for Eye Research Australia, East Melbourne, VIC, Australia
| | - L J Pelentsov
- Clinical and Health Sciences, University of South Australia, Adelaide, SA, Australia
| | - L S Kearns
- Centre for Eye Research Australia, East Melbourne, VIC, Australia
- Royal Victorian Eye and Ear Hospital, East Melbourne, VIC, Australia
| | - K L Galvin
- Department of Audiology and Speech Pathology, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, VIC, Australia.
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Feng J, Zeng Z, Luo S, Liu X, Luo Q, Yang K, Zhang G, Liu J. Carrier frequencies, trends, and geographical distribution of hearing loss variants in China: The pooled analysis of 2,161,984 newborns. Heliyon 2024; 10:e24850. [PMID: 38322914 PMCID: PMC10845244 DOI: 10.1016/j.heliyon.2024.e24850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 12/07/2023] [Accepted: 01/16/2024] [Indexed: 02/08/2024] Open
Abstract
The aim of this study is to comprehensively investigate the prevalence and distribution patterns of three common genetic variants associated with hearing loss (HL) in Chinese neonatal population. Methods: Prior to June 30, 2023, an extensive search and screening process was conducted across multiple literature databases. R software was utilized for conducting meta-analyses, cartography, and correlation analyses. Results: Firstly, our study identified a total of 99 studies meeting the inclusion criteria. Notably, provinces such as Qinghai, Tibet, Jilin, and Heilongjiang lack large-scale genetic screening data for neonatal deafness. Secondly, in Chinese newborns, the carrier frequencies of GJB2 variants (c.235delC, c.299_300delAT) were 1.63 % (95 %CI 1.52 %-1.76 %) and 0.33 % (95 %CI 0.30 %-0.37 %); While SLC26A4 variants (c.919-2A > G, c.2168A > G) exhibited carrier rates of 0.95 % (95 %CI 0.86 %-1.04 %) and 0.17 % (95 %CI 0.15 %-0.19 %); Additionally, Mt 12S rRNA m.1555 A > G variant was found at a rate of 0.24 % (95 % CI 0.22 %-0.26 %). Thirdly, the mutation rate of GJB2 c.235delC was higher in the east of the Heihe-Tengchong line, whereas the mutation rate of Mt 12S rRNA m.1555 A > G variant exhibited the opposite pattern. Forthly, no significant correlation exhibited the opposite pattern of GJB2 variants, but there was a notable correlation among SLC26A4 variants. Lastly, strong regional distribution correlations were evident between mutation sites from different genes, particularly between SLC26A4 (c.919-2A > G and c.2168A > G) and GJB c.299_300delAT. Conclusions: The most prevalent deafness genes among Chinese neonates were GJB2 c.235delC variant, followed by SLC26A4 c.919-2A > G variant. These gene mutation rates exhibit significant regional distribution characteristics. Consequently, it is imperative to enhance genetic screening efforts to reduce the incidence of deafness in high-risk areas.
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Affiliation(s)
- Jia Feng
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Sichuan, China
| | - Zhangrui Zeng
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Sichuan, China
| | - Sijian Luo
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Sichuan, China
| | - Xuexue Liu
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Sichuan, China
| | - Qing Luo
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Sichuan, China
| | - Kui Yang
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Sichuan, China
| | - Guanbin Zhang
- Department of Laboratory Medicine, Fujian Medical University, Fuzhou 350122, China
- National Engineering Research Center for Beijing Biochip Technology, Beijing, 102206 ,China
| | - Jinbo Liu
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Sichuan, China
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Van den Borre E, Tufatulin G, Zupan L, Božanić Urbančič N, Lavie L, Holube I, Swarnalatha Nagaraj V, Gurses E, Denys S, van Wieringen A, Wouters J. A language-independent hearing screening self-test at school-entry. Sci Rep 2024; 14:2582. [PMID: 38297140 PMCID: PMC10831048 DOI: 10.1038/s41598-024-53026-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 01/26/2024] [Indexed: 02/02/2024] Open
Abstract
The usage of a tablet-based language-independent self-test involving the recognition of ecological sounds in background noise, the Sound Ear Check, was investigated. The results of 692 children, aged between 5 and 9 years and 4 months, recruited in seven different countries, were used to analyze the validity and the cultural independence of test. Three different test procedures, namely a monaural adaptive procedure, a procedure presenting the sounds dichotically in diotic noise, and a procedure presenting all the sounds with a fixed signal-to-noise ratio and a stopping rule were studied. Results showed high sensitivity and specificity of all three procedures to detect conductive, sensorineural and mixed hearing loss > 30 dB HL. Additionally, the data collected from different countries were consistent, and there were no clinically relevant differences observed between countries. Therefore, the Sound Ear Check can offer an international hearing screening test for young children at school entry, solving the current lack of hearing screening services on a global scale.
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Affiliation(s)
- Elien Van den Borre
- Department of Neurosciences, Research Group ExpORL, KU Leuven, Herestraat 49 Bus 721, 3000, Leuven, Belgium.
| | - Gaziz Tufatulin
- Center of Pediatric Audiology, St Petersburg, Russia
- North-Western State Medical University Named After I.I.Mechnikov, St Petersburg, Russia
- Scientific Research Institute of Ear, Nose, Throat and Speech, St Petersburg, Russia
| | - Lea Zupan
- Department of Ear, Nose, and Throat, General Hospital Celje, Celje, Slovenia
| | - Nina Božanić Urbančič
- Department of Otorhinolaryngology and Cervicofacial Surgery, University Medical Centre Ljubljana, Ljubljana, Slovenia
- Faculty of Medicine, Department of Otorhinolaryngology, University of Ljubljana, Ljubljana, Slovenia
| | - Limor Lavie
- Department of Communication Sciences and Disorders, University of Haifa, Haifa, Israel
| | - Inga Holube
- Institute of Hearing Technology and Audiology, Jade University of Applied Sciences, Oldenburg, Germany
| | - Vinay Swarnalatha Nagaraj
- Audiology Group, Department of Neuromedicine and Movement Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Emre Gurses
- Department of Audiology, Faculty of Health Science, Hacettepe University, Ankara, Turkey
| | - Sam Denys
- Department of Neurosciences, Research Group ExpORL, KU Leuven, Herestraat 49 Bus 721, 3000, Leuven, Belgium
- Department of Otorhinolaryngology-Head and Neck Surgery, Multidisciplinary University Center for Speech-Language Pathology and Audiology, University Hospitals of Leuven, Leuven, Belgium
| | - Astrid van Wieringen
- Department of Neurosciences, Research Group ExpORL, KU Leuven, Herestraat 49 Bus 721, 3000, Leuven, Belgium
| | - Jan Wouters
- Department of Neurosciences, Research Group ExpORL, KU Leuven, Herestraat 49 Bus 721, 3000, Leuven, Belgium
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10
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Yu Y, Zhang J, Zhan Y, Luo G. A novel method for detecting nine hotspot mutations of deafness genes in one tube. Sci Rep 2024; 14:454. [PMID: 38172427 PMCID: PMC10764868 DOI: 10.1038/s41598-023-50928-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 12/28/2023] [Indexed: 01/05/2024] Open
Abstract
Deafness is a common sensory disorder. In China, approximately 70% of hereditary deafness originates from four common deafness-causing genes: GJB2, SLC26A4, GJB3, and MT-RNR1. A single-tube rapid detection method based on 2D-PCR technology was established for nine mutation sites in the aforementioned genes, and Sanger sequencing was used to verify its reliability and accuracy. The frequency of hotspot mutations in deafness genes was analysed in 116 deaf students. 2D-PCR identified 27 genotypes of nine loci according to the melting curve of the FAM, HEX, and Alexa568 fluorescence channels. Of the 116 deaf patients, 12.9% (15/116) carried SLC26A4 mutations, including c.919-2A > G and c.2168A > G (allele frequencies, 7.3% and 2.2%, respectively). The positivity rate (29.3%; 34/116) was highest for GJB2 (allele frequency, 15.9% for c.235delC, 6.0% for c.299_300delAT, and 2.6% for c.176-191del16). Sanger sequencing confirmed the consistency of results between the detection methods based on 2D-PCR and DNA sequencing. Common pathogenic mutations in patients with non-syndromic deafness in Changzhou were concentrated in GJB2 (c.235delC, c.299_300delAT, and c.176-191del16) and SLC26A4 (c.919-2A > G and c.2168 A > G). 2D-PCR is an effective method for accurately and rapidly identifying deafness-related genotypes using a single-tube reaction, and is superior to DNA sequencing, which has a high cost and long cycle.
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Affiliation(s)
- Yang Yu
- Comprehensive Laboratory, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, People's Republic of China
| | - Jun Zhang
- Comprehensive Laboratory, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, People's Republic of China
| | - Yuxia Zhan
- Comprehensive Laboratory, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, People's Republic of China
| | - Guanghua Luo
- Comprehensive Laboratory, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, People's Republic of China.
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11
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Zheng K, Lin S, Gao J, Chen S, Su J, Liu Z, Duan S. Novel compound heterozygous MYO15A splicing variants in autosomal recessive non-syndromic hearing loss. BMC Med Genomics 2024; 17:4. [PMID: 38167320 PMCID: PMC10763153 DOI: 10.1186/s12920-023-01777-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Hereditary hearing loss is a highly heterogeneous disorder. This study aimed to identify the genetic cause of a Chinese family with autosomal recessive non-syndromic sensorineural hearing loss (ARNSHL). METHODS Clinical information and peripheral blood samples were collected from the proband and its parents. Two-step high-throughput next-generation sequencing on the Ion Torrent platform was applied to detect variants as follows. First, long-range PCR was performed to amplify all the regions of the GJB2, GJB3, SLC26A4, and MT-RNR1 genes, followed by next-generation sequencing. If no candidate pathogenetic variants were found, the targeted exon sequencing with AmpliSeq technology was employed to examine another 64 deafness-associated genes. Sanger sequencing was used to identify variants and the lineage co-segregation. The splicing of the MYO15A gene was assessed by in silico bioinformatics prediction and minigene assays. RESULTS Two candidate MYO15A gene (OMIM, #602,666) heterozygous splicing variants, NG_011634.2 (NM_016239.3): c.6177 + 1G > T and c.9690 + 1G > A, were identified in the proband, and these two variants were both annotated as pathogenic according to the American College of Medical Genetics and Genomics (ACMG) guidelines. Further bioinformatic analysis predicted that the c.6177 + 1G > T variant might cause exon skipping and that the c.9690 + 1G > A variant might activate a cryptic splicing donor site in the downstream intronic region. An in vitro minigene assay confirmed the above predictions. CONCLUSIONS We identified a compound heterozygous splicing variant in the MYO15A gene in a Han Chinese family with ARNSHL. Our results broaden the spectrum of MYO15A variants, potentially benefiting the early diagnosis, prevention, and treatment of the disease.
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Affiliation(s)
- Kaifeng Zheng
- Laboratory of Molecular Medicine, Institute of Maternal and Child Medicine, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Sheng Lin
- Shenzhen Health Development Research and Data Management Center, Shenzhen, China
| | - Jian Gao
- Laboratory of Molecular Medicine, Institute of Maternal and Child Medicine, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Shiguo Chen
- Laboratory of Molecular Medicine, Institute of Maternal and Child Medicine, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Jindi Su
- Laboratory of Molecular Medicine, Institute of Maternal and Child Medicine, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Zhiqiang Liu
- Shenzhen Health Development Research and Data Management Center, Shenzhen, China
| | - Shan Duan
- Laboratory of Molecular Medicine, Institute of Maternal and Child Medicine, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China.
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12
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Kun L, Jiexiang H, Hua L, Junlin H, Yijun R, Lixian Z, Mingqiao C. Genetic screening of 15 hearing loss variants in 77,647 neonates with clinical follow-up. Mol Genet Genomic Med 2024; 12:e2324. [PMID: 38037722 PMCID: PMC10767602 DOI: 10.1002/mgg3.2324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 11/03/2023] [Accepted: 11/10/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND To analyze the genotype distribution and frequency of hearing loss genes in newborn population and evaluate the clinical value of genetic screening policy in China. METHODS Genetic screening for hearing loss was offered to 84,029 neonates between March 2019 and December 2021, of whom 77,647 newborns accepted the screening program with one-year follow-up. The genotyping of 15 hot spot variants in GJB2, GJB3, SLC26A4, and MT-RNR1 was performed on microarray platform. RESULTS A total of 3.05% (2369/77,647) newborns carried at least one genetic hearing loss-associated variant, indicated for early preventive management. The carrier frequency of GJB2 gene was the highest, at 1.48% (1147/77,647), followed by SLC26A4 gene at 1.07% (831/77,647), and GJB3 gene at 0.23% (181/77,647). GJB2 c.235delC variant and SLC26A4 IVS7-2A>G variant were the most common allelic variants with allele frequency of 0.6304% (979/155,294) and 0.3992% (620/155,294), respectively. 10 children are identified as homozygous or compound heterozygous for pathogenic variants (4 in GJB2, 6 in SLC26A4), and 7 of these infants had passed the hearing screening. Following up of the genetically screened newborns revealed that genetic screening detected more hearing-impaired infants than hearing screening alone. Genetic screening helped identify the infants who had passed the initial hearing screening, and reduced time for diagnosis and intervention of hearing aid. In addition, we identified 234 newborns (0.30%, 234/77,647) susceptible to preventable aminoglycoside antibiotic ototoxicity undetectable by hearing screening. CONCLUSION We performed the largest-scale neonatal carrier screening for hearing loss genes in Southeast China. Our results indicated that genetic screening is an important complementation to conventional hearing screening. Our practice and experience may facilitate the application and development of neonatal genetic screening policy in mainland China.
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Affiliation(s)
- Lin Kun
- Prenatal Diagnosis Center, The Affiliated Hospital of Putian UniversityPutian UniversityPutianChina
- Newborn Screening CenterPutian Maternity and Child Health Care HospitalPutianChina
| | - Huang Jiexiang
- Prenatal Diagnosis Center, The Affiliated Hospital of Putian UniversityPutian UniversityPutianChina
| | - Lin Hua
- Prenatal Diagnosis Center, The Affiliated Hospital of Putian UniversityPutian UniversityPutianChina
| | - Han Junlin
- Department of PediatricsPutian Maternity and Child Health Care HospitalPutianChina
| | - Ruan Yijun
- Department of PediatricsPutian Maternity and Child Health Care HospitalPutianChina
| | - Zhang Lixian
- Newborn Screening CenterPutian Maternity and Child Health Care HospitalPutianChina
| | - Chen Mingqiao
- Prenatal Diagnosis Center, The Affiliated Hospital of Putian UniversityPutian UniversityPutianChina
- Newborn Screening CenterPutian Maternity and Child Health Care HospitalPutianChina
- Department of PediatricsPutian Maternity and Child Health Care HospitalPutianChina
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13
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Lv Y, Wang Z, Yuan L, Cheng F, Wu H, Wang Z, Yang T, Chen Y. A cost-effectiveness analysis of pre-pregnancy genetic screening for deafness: an empirical study in China. Front Public Health 2023; 11:1081339. [PMID: 38131025 PMCID: PMC10733504 DOI: 10.3389/fpubh.2023.1081339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
Objectives This research aims to assess the effectiveness and cost-effectiveness of pre-pregnancy deafness screening policies. Methods Married couples from Shanghai, Beijing, and Suzhou in China were enrolled. We conducted high-throughput, pre-pregnancy genetic screenings for deafness in women and their partners. We compared the cost-effectiveness of deafness genetic screening with the status quo. The two-step screening (wife then partner) and following treatments and interventions were included in the decision tree model. We conducted a cost-effectiveness analysis based on the decrease in deaf newborns, healthy newborn births, and cost-utility analysis of pre-pregnancy deafness genetic screening separately. Cost, utility, and probability data used in the three models were collected from a survey combined with literature and expert consultants. A 5% discount rate and a series of one-way sensitivity analyses along with a Monte Carlo simulation were used to test the reliability of this research. Results Between Jan 1, 2019, and Dec 31, 2021, we recruited 6,200 females and 540 male spouses from community health service centers in Shanghai, Beijing, and Suzhou. The incremental cost-effectiveness ratio (ICER) for reducing deaf newborn births was USD 32,656 per case and USD 1,203,926 per case for increasing one healthy newborn birth. This gap exists because of the overall decrease of newborn births. From the perspective of the whole society, deafness genetic screening is not cost-effective for reducing the overall quality-adjusted life years (QALY) in the population. Discussion Pre-pregnancy genetic testing is effective in decreasing the occurrence of congenital deafness. It is a cost-saving measure when compared with the costs of future medical expenditure and income loss for the affected families. However, such screening and preventive avoidance of pregnancy will decrease the population size and QALY. Only post-screening ART with PGT was shown to increase the birth of healthy newborns. Focusing on key groups such as premature births or consanguineous couples may improve the societal effects of screening.
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Affiliation(s)
- Yipeng Lv
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhili Wang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Ling Yuan
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fan Cheng
- Department of Endodontics, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Hao Wu
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Zhaoxin Wang
- The First Affiliated Hospital, Hainan Medical University, Haikou, Hainan, China
| | - Tao Yang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Ying Chen
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Ear Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
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14
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Peart L, Gonzalez J, Morel Swols D, Duman D, Saridogan T, Ramzan M, Zafeer MF, Liu XZ, Eshraghi AA, Hoffer ME, Angeli SI, Bademci G, Blanton S, Smith C, Telischi FF, Tekin M. Dispersed DNA variants underlie hearing loss in South Florida's minority population. Hum Genomics 2023; 17:103. [PMID: 37996878 PMCID: PMC10668374 DOI: 10.1186/s40246-023-00556-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 11/19/2023] [Indexed: 11/25/2023] Open
Abstract
BACKGROUND We analyzed the genetic causes of sensorineural hearing loss in racial and ethnic minorities of South Florida by reviewing demographic, phenotypic, and genetic data on 136 patients presenting to the Hereditary Hearing Loss Clinic at the University of Miami. In our retrospective chart review, of these patients, half self-identified as Hispanic, and the self-identified racial distribution was 115 (86%) White, 15 (11%) Black, and 6 (4%) Asian. Our analysis helps to reduce the gap in understanding the prevalence, impact, and genetic factors related to hearing loss among diverse populations. RESULTS The causative gene variant or variants were identified in 54 (40%) patients, with no significant difference in the molecular diagnostic rate between Hispanics and Non-Hispanics. However, the total solve rate based on race was 40%, 47%, and 17% in Whites, Blacks, and Asians, respectively. In Non-Hispanic Whites, 16 different variants were identified in 13 genes, with GJB2 (32%), MYO7A (11%), and SLC26A4 (11%) being the most frequently implicated genes. In White Hispanics, 34 variants were identified in 20 genes, with GJB2 (22%), MYO7A (7%), and STRC-CATSPER2 (7%) being the most common. In the Non-Hispanic Black cohort, the gene distribution was evenly dispersed, with 11 variants occurring in 7 genes, and no variant was identified in 3 Hispanic Black probands. For the Asian cohort, only one gene variant was found out of 6 patients. CONCLUSION This study demonstrates that the diagnostic rate of genetic studies in hearing loss varies according to race in South Florida, with more heterogeneity in racial and ethnic minorities. Further studies to delineate deafness gene variants in underrepresented populations, such as African Americans/Blacks from Hispanic groups, are much needed to reduce racial and ethnic disparities in genetic diagnoses.
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Affiliation(s)
- LéShon Peart
- Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Joanna Gonzalez
- Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Dayna Morel Swols
- Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Duygu Duman
- Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
- Department of Audiology, Faculty of Health Sciences, Ankara University, Ankara, Turkey
| | - Turcin Saridogan
- Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Memoona Ramzan
- Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Mohammad Faraz Zafeer
- Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Xue Zhong Liu
- Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
- Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
- Department of Otolaryngology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Adrien A Eshraghi
- Department of Otolaryngology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Michael E Hoffer
- Department of Otolaryngology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Simon I Angeli
- Department of Otolaryngology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Guney Bademci
- Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Susan Blanton
- Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
- Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
- Department of Otolaryngology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Carson Smith
- Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Fred F Telischi
- Department of Otolaryngology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Mustafa Tekin
- Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA.
- Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA.
- Department of Otolaryngology, Miller School of Medicine, University of Miami, Miami, FL, USA.
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15
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Canavan S, McNerlin L, Dawes P, Parry G, Prendergast G. A comparison of automated verification using paediatric hearing aids. Int J Audiol 2023:1-8. [PMID: 37946458 DOI: 10.1080/14992027.2023.2272560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 10/10/2023] [Indexed: 11/12/2023]
Abstract
OBJECTIVE Best-practice guidelines recommend the use of hearing aid verification in children; however, this is not always performed. Automated hearing aid verification has been reported to be more accurate and efficient than manual verification in adults, but it is not known if this transfers to the paediatric population. DESIGN A within-group design compared manual and automated hearing aid verification on four measures; fitting accuracy, prescription targets, completion time, and the speech intelligibility index. SAMPLE Twenty paediatric patient hearing aid profiles (M = 8.25 years) with unilateral or bilateral hearing aids. RESULTS A Wilcoxon-signed rank test indicated manual verification achieved a significantly closer match to target at 0.5 kHz, by an average of 1 dB. There were no significant differences at any other frequency. Across 80 comparisons (four frequencies measured in 20 listeners), 82.5% of automated verifications were identical to, or within 1 dB of, manual verifications. A paired-samples t-test confirmed automated verification to be an average of 91.9 seconds faster than manual verification. CONCLUSION Automated verification was able to provide an accurate match to target within recommended tolerances for hearing aid fittings and was significantly quicker than manual verification. These data suggest that automated verification of hearing aids could play a role in paediatric audiological management.
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Affiliation(s)
- Shanelle Canavan
- Yorkshire Auditory Implant Service, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
| | - Laura McNerlin
- Audiology Department, Betsi Cadwaladr University Health Board, North Wales, UK
| | - Piers Dawes
- University of Queensland Centre for Hearing Research (CHEAR), School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
| | - Georgina Parry
- Audiology Department, Betsi Cadwaladr University Health Board, North Wales, UK
| | - Garreth Prendergast
- Manchester Centre for Audiology and Deafness, University of Manchester, Manchester, UK
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16
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Robler SK, Platt A, Turner EL, Gallo JJ, Labrique A, Hofstetter P, Inglis-Jenson M, Jenson CD, Hicks KL, Wang NY, Emmett SD. Telemedicine Referral to Improve Access to Specialty Care for Preschool Children in Rural Alaska: A Cluster-Randomized Controlled Trial. Ear Hear 2023; 44:1311-1321. [PMID: 37226299 PMCID: PMC10583927 DOI: 10.1097/aud.0000000000001372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 03/10/2023] [Indexed: 05/26/2023]
Abstract
OBJECTIVES Preschool programs provide essential preventive services, such as hearing screening, but in rural regions, limited access to specialists and loss to follow-up compound rural health disparities. We conducted a parallel-arm cluster-randomized controlled trial to evaluate telemedicine specialty referral for preschool hearing screening. The goal of this trial was to improve timely identification and treatment of early childhood infection-related hearing loss, a preventable condition with lifelong implications. We hypothesized that telemedicine specialty referral would improve time to follow-up and the number of children receiving follow-up compared with the standard primary care referral. DESIGN We conducted a cluster-randomized controlled trial in K-12 schools in 15 communities over two academic years. Community randomization occurred within four strata using location and school size. In the second academic year (2018-2019), an ancillary trial was performed in the 14 communities that had preschools to compare telemedicine specialty referral (intervention) to standard primary care referral (comparison) for preschool hearing screening. Randomization of communities from the main trial was used for this ancillary trial. All children enrolled in preschool were eligible. Masking was not possible because of timing in the second year of the main trial, but referral assignment was not openly disclosed. Study team members and school staff were masked throughout data collection, and statisticians were blinded to allocation during analysis. Preschool screening occurred once, and children who were referred for possible hearing loss or ear disease were monitored for follow-up for 9 months from the screening date. The primary outcome was time to ear/hearing-related follow-up from the date of screening. The secondary outcome was any ear/hearing follow-up from screening to 9 months. Analyses were conducted using an intention-to-treat approach. RESULTS A total of 153 children were screened between September 2018 and March 2019. Of the 14 communities, 8 were assigned to the telemedicine specialty referral pathway (90 children), and 6 to the standard primary care referral pathway (63 children). Seventy-one children (46.4%) were referred for follow-up: 39 (43.3%) in the telemedicine specialty referral communities and 32 (50.8%) in the standard primary care referral communities. Of children referred, 30 (76.9%) children in telemedicine specialty referral communities and 16 (50.0%) children in standard primary care referral communities received follow-up within 9 months (Risk Ratio = 1.57; 95% confidence interval [CI], 1.22 to 2.01). Among children who received follow-up, median time to follow-up was 28 days (interquartile range [IQR]: 15 to 71) in telemedicine specialty referral communities compared with 85 days (IQR: 26 to 129) in standard primary care referral communities. Mean time to follow-up for all referred children was 4.5 (event time ratio = 4.5; 95% CI, 1.8 to 11.4; p = 0.045) times faster in telemedicine specialty referral communities compared with standard primary care referral communities in the 9-month follow-up time frame. CONCLUSIONS Telemedicine specialty referral significantly improved follow-up and reduced time to follow-up after preschool hearing screening in rural Alaska. Telemedicine referrals could extend to other preventive school-based services to improve access to specialty care for rural preschool children.
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Affiliation(s)
- Samantha Kleindienst Robler
- Department of Audiology, Norton Sound Health Corporation, Nome, Alaska, USA
- Department of Otolaryngology–Head and Neck Surgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Alyssa Platt
- Department of Biostatistics and Bioinformatics, Duke University, Durham, North Carolina, USA
- Duke Global Health Institute, Durham, North Carolina, USA
| | - Elizabeth L. Turner
- Department of Biostatistics and Bioinformatics, Duke University, Durham, North Carolina, USA
- Duke Global Health Institute, Durham, North Carolina, USA
| | - Joseph J. Gallo
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Alain Labrique
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | | | - Meade Inglis-Jenson
- Department of Audiology, Norton Sound Health Corporation, Nome, Alaska, USA
- Department of Otolaryngology–Head and Neck Surgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Cole D. Jenson
- Department of Audiology, Norton Sound Health Corporation, Nome, Alaska, USA
| | - Kelli L. Hicks
- Department of Otolaryngology—Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Nae-Yuh Wang
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Departments of Biostatistics and Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Susan D. Emmett
- Department of Otolaryngology–Head and Neck Surgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Duke Global Health Institute, Durham, North Carolina, USA
- Center for Health Policy and Inequalities Research, Duke University, Durham, North Carolina, USA
- Department of Head and Neck Surgery and Communication Science, Duke University School of Medicine, Durham, North Carolina, USA
- Department of Epidemiology, University of Arkansas for Medical Sciences, Arkansas, USA
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Brockow I, Söhl K, Hanauer M, Heißenhuber A, Marzi C, Am Zehnhoff-Dinnesen A, Matulat P, Mansmann U, Nennstiel U. [Newborn hearing screening in Germany-results of the 2011/2012 and 2017/2018 evaluations]. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2023; 66:1259-1267. [PMID: 37843595 PMCID: PMC10622351 DOI: 10.1007/s00103-023-03779-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 09/18/2023] [Indexed: 10/17/2023]
Abstract
BACKGROUND Newborn hearing screening (NHS) was introduced nationwide by the Federal Joint Committee (Gemeinsamer Bundesausschuss, G‑BA) in 2009. In this process, quality targets were also set in the pediatrics directive. In order to review the quality NHS in Germany, the G‑BA commissioned a consortium to conduct an initial evaluation for the years 2011 and 2012 and a follow-up evaluation for 2017 and 2018. METHODS The evaluations were based on NHS screening parameters (Sammelstatistiken) that must be documented by all obstetrics and neonatology departments as NHS providers and can also be compiled through cooperation with hearing screening centers (HSCs). Additional data were collected through questionnaires and interviews and routine data were used to evaluate the screening process. RESULTS In 13 federal states, a total of 15 HSCs are involved in the screening process. Across Germany, an NHS screening rate of 86.1% was documented in 2018 (82.4% in 2012), but this differed significantly between the federal states. The specified quality targets could not yet be implemented everywhere. For example, only less than half of the obstetric departments achieved the specified screening rate of over 95%. A comparison of data from the follow-up evaluation and the first evaluation showed that the structural quality of NHS had improved, while the process quality remained the same or had deteriorated. The refer rate (children who were discharged without passing the screening) increased from 5.3% to 6.0%. DISCUSSION To improve the quality of NHS, HSCs should be established nationwide and a second screening should be carried out more consistently before discharge in the case of a refer result in the initial screening.
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Affiliation(s)
- Inken Brockow
- GP1, Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit (LGL), Veterinärstr. 2, 85764, München-Oberschleißheim, Deutschland.
| | - Kristina Söhl
- GP1, Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit (LGL), Veterinärstr. 2, 85764, München-Oberschleißheim, Deutschland
| | - Marianne Hanauer
- GP1, Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit (LGL), Veterinärstr. 2, 85764, München-Oberschleißheim, Deutschland
| | - Annette Heißenhuber
- GP1, Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit (LGL), Veterinärstr. 2, 85764, München-Oberschleißheim, Deutschland
| | - Carola Marzi
- GP1, Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit (LGL), Veterinärstr. 2, 85764, München-Oberschleißheim, Deutschland
| | | | - Peter Matulat
- Klinik für Phoniatrie und Pädaudiologie, Westfälische Wilhelms-Universität Münster (UKM), Münster, Deutschland
| | - Ulrich Mansmann
- Institut für Informationsverarbeitung, Biometrie und Epidemiologie (IBE), Ludwig-Maximilians-Universität (LMU), München, Deutschland
| | - Uta Nennstiel
- GP1, Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit (LGL), Veterinärstr. 2, 85764, München-Oberschleißheim, Deutschland
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Priner R, Brand D. The Complexity of Hearing Aid Fitting: Children with Congenital Hearing Loss and Middle Ear Dysfunction. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1630. [PMID: 37892294 PMCID: PMC10605603 DOI: 10.3390/children10101630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/18/2023] [Accepted: 09/23/2023] [Indexed: 10/29/2023]
Abstract
BACKGROUND The early diagnosis of hearing loss (HL) and hearing rehabilitation facilitate language and communication development. Some children exhibit mixed HL due to middle ear effusion (MEE) or acute otitis media (AOM). Mixed HL can affect HL evaluation and hearing aid (HA) fitting. The present study retrospectively evaluated the prevalence of MEE/AOM among children with congenital sensorineural HL (SNHL) who were fitted with HAs and its effect on the HA fitting. METHODS Thirty-six HA fittings carried out between 2017 and 2020 at one rehabilitation center were examined. Medical and audiological information was retrieved for children between 6 and 32 months old. The number of appointments and HA fitting times were recorded. RESULTS Twenty-eight children were included in the study. Eighteen children, in addition to SNHL, had a conductive component resulting from MEE/AOM. The children with these pathologies required significantly more HA fitting sessions and hearing tests, fewer real ear to coupler difference (RECD) measurements and longer HA fitting periods. CONCLUSION The findings indicate that a large number of children fitted with HAs have an additional conductive component that makes the fitting process longer. Since early rehabilitation is necessary for language development, otolaryngologists should be aware of the adverse effects of MEE/AOE on the HA fitting process. It is important to inform parents that when there is a conductive component, the HA fitting process may take longer and that treatment by an otolaryngologist is vital. This study stresses the importance of multidisciplinary cooperation for optimal HA fitting.
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Affiliation(s)
- Ronit Priner
- Department of Communication Disorders, Hadassah Academic College, Jerusalem 9101001, Israel
| | - Devora Brand
- Department of Communication Disorders, Hadassah Academic College, Jerusalem 9101001, Israel
- Hearing and Speech Clinic, Hadassah Medical Center, Jerusalem 9574425, Israel
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Kang M, Kim JA, Song MH, Joo SY, Kim SJ, Jang SH, Lee H, Seong JK, Choi JY, Gee HY, Jung J. Novel Variant in CEP250 Causes Protein Mislocalization and Leads to Nonsyndromic Autosomal Recessive Type of Progressive Hearing Loss. Cells 2023; 12:2328. [PMID: 37759551 PMCID: PMC10528078 DOI: 10.3390/cells12182328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/13/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023] Open
Abstract
Genetic hearing loss is the most common hereditary sensorial disorder. Though more than 120 genes associated with deafness have been identified, unveiled causative genes and variants of diverse types of hearing loss remain. Herein, we identified a novel nonsense homozygous variant in CEP250 (c.3511C>T; p.Gln1171Ter) among the family members with progressive moderate sensorineural hearing loss in nonsyndromic autosomal recessive type but without retinal degeneration. CEP250 encodes C-Nap1 protein belonging to the CEP protein family, comprising 30 proteins that play roles in centrosome aggregation and cell cycle progression. The nonsense variant in CEP250 led to the early truncating protein of C-Nap1, which hindered centrosome localization; heterologous expression of CEP250 (c.3511C>T) in NIH3T3 cells within cilia expression condition revealed that the truncating C-Nap1 (p.Gln1171Ter) was not localized at the centrosome but was dispersed in the cytosol. In the murine adult cochlea, Cep250 was expressed in the inner and outer hair cells. Knockout mice of Cep250 showed significant hair cell degeneration and progressive hearing loss in auditory brainstem response. In conclusion, a nonsense variant in CEP250 results in a deficit of centrosome localization and hair cell degeneration in the cochlea, which is associated with the progression of hearing loss in humans and mice.
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Affiliation(s)
- Minjin Kang
- Department of Otorhinolaryngology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; (M.K.); (J.Y.C.)
- Institute for Lee Won Sang Yonsei Ear Science, Seoul 03722, Republic of Korea (S.Y.J.)
| | - Jung Ah Kim
- Institute for Lee Won Sang Yonsei Ear Science, Seoul 03722, Republic of Korea (S.Y.J.)
- Department of Pharmacology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Mee Hyun Song
- Department of Otorhinolaryngology Head and Neck Surgery, Myongji Hospital, Hanyang University College of Medicine, Goyang 04763, Republic of Korea
| | - Sun Young Joo
- Institute for Lee Won Sang Yonsei Ear Science, Seoul 03722, Republic of Korea (S.Y.J.)
- Department of Pharmacology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Se Jin Kim
- Institute for Lee Won Sang Yonsei Ear Science, Seoul 03722, Republic of Korea (S.Y.J.)
- Department of Pharmacology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Seung Hyun Jang
- Department of Otorhinolaryngology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; (M.K.); (J.Y.C.)
- Institute for Lee Won Sang Yonsei Ear Science, Seoul 03722, Republic of Korea (S.Y.J.)
- Department of Pharmacology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Ho Lee
- Graduate School of Cancer Science and Policy, National Cancer Center, Goyang-si 10408, Republic of Korea;
| | - Je Kyung Seong
- Laboratory of Developmental Biology and Genomics, BK21 PLUS Program for Creative Veterinary Science Research, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Republic of Korea;
| | - Jae Young Choi
- Department of Otorhinolaryngology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; (M.K.); (J.Y.C.)
- Institute for Lee Won Sang Yonsei Ear Science, Seoul 03722, Republic of Korea (S.Y.J.)
| | - Heon Yung Gee
- Institute for Lee Won Sang Yonsei Ear Science, Seoul 03722, Republic of Korea (S.Y.J.)
- Department of Pharmacology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jinsei Jung
- Department of Otorhinolaryngology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; (M.K.); (J.Y.C.)
- Institute for Lee Won Sang Yonsei Ear Science, Seoul 03722, Republic of Korea (S.Y.J.)
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Núñez Batalla FJ, Fernández-Cedrón Bermejo C, Guntín García M, Sandoval Menéndez I, Fresno Díaz E, Gómez Martínez JR, Llorente Pendás JL. Universal neonatal hearing screening and delayed hearing loss or late-developmental hearing loss. ACTA OTORRINOLARINGOLOGICA ESPANOLA 2023; 74:283-289. [PMID: 37149133 DOI: 10.1016/j.otoeng.2022.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 10/07/2022] [Indexed: 05/08/2023]
Abstract
OBJECTIVE To determine the percentage of children with permanent bilateral postnatal hearing loss in order to study its incidence, related risk factors, diagnosis and treatment. METHODS Retrospective study to collect data on children diagnosed with hearing loss outside the neonatal period in the Hearing Loss Unit of the Hospital Universitario Central de Asturias, from April 2014 to April 2021. RESULTS 52 cases met the inclusion criteria. The detection rate of congenital hearing loss in the neonatal screening programme in the same study period was 1.5 children per thousand newborns per year, adding postnatal hearing loss results in a rate of infant bilateral hearing loss of 2.7 children per thousand (55.5% and 44.4% respectively). Thirty-five children presented risk factors for hearing loss, of which 23 were at retrocochlear risk. The mean age at referral was 91.9 (18-185) months. Hearing aid fitting was indicated in 44 cases (84.6%). Cochlear implantation was indicated in eight cases (15.4%). DISCUSSION Although congenital hearing loss accounts for the majority of childhood deafness, postnatal hearing loss has a significant incidence. This may be mainly due to: (1) that hearing impairment may arise in the first years of life, (2) that mild hearing loss as well as hearing loss in severe frequencies are undetectable by neonatal screening in some cases, (3) that some children may have false negative results. CONCLUSION postnatal hearing loss requires identification of risk factors and long-term follow-up of children with hearing loss, as it needs to be detected and treated early.
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Affiliation(s)
| | | | - Maite Guntín García
- Instituto de Atención Temprana y Seguimiento, Fundación Padre Vinjoy, Oviedo, Spain
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21
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Choe G, Park SK, Kim BJ. Hearing loss in neonates and infants. Clin Exp Pediatr 2023; 66:369-376. [PMID: 36634668 PMCID: PMC10475863 DOI: 10.3345/cep.2022.01011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 12/12/2022] [Accepted: 12/19/2022] [Indexed: 01/10/2023] Open
Abstract
Hearing in neonates and infants is crucial for their development of language and communication skills. Unless hearing loss is appropriately managed early, it can cause a significant socioeconomic burden considering its detrimental impact on the child's development and its common nature. It is also the most common congenital sensory deficit, with an approximate incidence of 1.5 per 1,000 newborns. Its etiologies are heterogeneous: genetic causes are reportedly involved in up to 80% of cases, while congenital cytomegalovirus infection is the leading environmental factor contributing to congenital hearing loss. The introduction of newborn hearing screening using automated auditory brainstem response and/or automated otoacoustic emission in many developed countries has helped detect and manage hearing loss early. Current auditory rehabilitation options such as cochlear implantation implementing cutting-edge technologies can treat almost all degrees of hearing loss, emphasizing the importance of early hearing detection and intervention. Rapidly developing genetic diagnostic technologies and future cutting-edge treatment options, including gene therapy, will shed light on the future management of hearing loss in neonates and infants.
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Affiliation(s)
- Goun Choe
- Department of Otolaryngology-Head and Neck Surgery, Chungnam National University Sejong Hospital, Chungnam National University College of Medicine, Sejong, Korea
| | - Su-Kyoung Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Bong Jik Kim
- Department of Otolaryngology-Head and Neck Surgery, Chungnam National University Sejong Hospital, Chungnam National University College of Medicine, Sejong, Korea
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22
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Chant K, Bitner-Glindzicz M, Marlow N. Cumulative risk factors contributing to hearing loss in preterm infants. Arch Dis Child Fetal Neonatal Ed 2023; 108:464-470. [PMID: 36564163 DOI: 10.1136/archdischild-2022-324331] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 12/12/2022] [Indexed: 12/25/2022]
Abstract
OBJECTIVE To investigate individual and concomitant risk factors for hearing loss during neonatal care. DESIGN Case-control study. SETTING Community. POPULATION 237 children born <32 weeks of gestation; 57 with hearing loss and 180 with normal hearing born between 2009 and 2013, matched for sex, gestation and year of birth. MAIN OUTCOME MEASURES Data were abstracted from clinical records for overall risk factors daily for the first 14 days and then weekly until discharge from neonatal care. All infants were screened for the presence of m.1555A>G mutation. RESULTS Children with hearing loss had lower birth weight for gestational age, more severe neonatal illness, with increased exposure to inotrope, steroid, gentamicin, vancomycin and furosemide, and more frequent physiological risk, elevated bilirubin and creatinine levels and acidosis, but no index child was found to have the m.1555A>G mutation, compared with one among controls. The duration of gentamicin, vancomycin or furosemide administration in the first 14 days was associated with impaired hearing (OR per dose: 1.25; 95% CI 1.14 to 1.38). Multivariate analyses revealed independent risks for hearing loss for each day when there was physiological risk (OR per day 1.15 (1.05 to 1.27)) and each day of medication exposure (OR 1.23 (1.1 to 1.37)). CONCLUSION Although the relative contribution of underlying illness and medication cannot be identified by this study, cumulative use of ototoxic medication and the presence of physiologic risk factors independently increased the likelihood of hearing loss, warranting close monitoring of coincident therapy throughout neonatal critical care.
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Affiliation(s)
- Kathy Chant
- Department of Neonatology, UCL Institute for Women's Health, University College London, London, UK
| | - Maria Bitner-Glindzicz
- Department of Clinical and Molecular Genetics, UCL Great Ormond Street Institute of Child Health Library, London, UK
| | - Neil Marlow
- Department of Neonatology, UCL Institute for Women's Health, University College London, London, UK
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Ayton LN, Galvin KL, Johansen L, O’Hare F, Shepard ER. Awareness of Usher Syndrome and the Need for Multidisciplinary Care: A Cross-Occupational Survey of Allied Health Clinicians. J Multidiscip Healthc 2023; 16:1927-1936. [PMID: 37465013 PMCID: PMC10351585 DOI: 10.2147/jmdh.s411306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 06/29/2023] [Indexed: 07/20/2023] Open
Abstract
Background Usher syndrome is the most common cause of deaf-blindness, affecting up to 1 in 6000 people. Multidisciplinary care is required to maximize outcomes for individuals and families. This study assessed awareness of Usher Syndrome amongst allied health clinicians who provide care related to the primarily affected senses of hearing and vision, ie, optometry, orthoptics and audiology. Methods A prospective cross-sectional online survey of clinicians working in Australian university-affiliated clinics (7 optometry, 1 orthoptics and 4 audiology) was completed between September 2021 and January 2022. Questions were asked about the cause, common symptoms, and awareness of health professions who manage Usher syndrome. Results The 27 audiologists, 40 optometrists, and 7 orthoptists who completed the survey included 53 females (71.6%), had an average age of 37 years (range 24-70), and had an average duration of clinical experience of 13 years (range 1-45 years). The majority of respondents correctly identified Usher syndrome as a genetic condition (86%), identified at least two of the affected senses (97%), and identified the progressive nature of the vision and hearing losses (>90%). Awareness of vestibular dysfunction and its characteristics was low, as was knowledge of the key treatment roles that speech pathologists, genetic counsellors and geneticists play in the management of Usher Syndrome. The majority of respondents also did not identify important aspects of care within their own discipline. Conclusion This study has shown that there is a need for targeted education to be delivered to hearing and vision care allied health clinicians to raise awareness of the vestibular impacts and aspects of vision loss experienced by people with Usher syndrome. This education needs to target the broad range of clinicians who have a key role in providing multidisciplinary care (including speech pathologists, geneticists, and genetic counsellors) and to identify the key aspects of good-quality multidisciplinary care.
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Affiliation(s)
- Lauren N Ayton
- Department of Optometry and Vision Sciences, University of Melbourne, Parkville, VIC, Australia
- Department of Surgery (Ophthalmology), University of Melbourne, Parkville, VIC, Australia
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, East Melbourne, VIC, Australia
| | - Karyn L Galvin
- Department of Audiology and Speech Pathology, University of Melbourne, Parkville, VIC, Australia
| | | | - Fleur O’Hare
- Department of Optometry and Vision Sciences, University of Melbourne, Parkville, VIC, Australia
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, East Melbourne, VIC, Australia
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Ignatious E, Azam S, Jonkman M, De Boer F. Frequency and Time Domain Analysis of EEG Based Auditory Evoked Potentials to Detect Binaural Hearing in Noise. J Clin Med 2023; 12:4487. [PMID: 37445522 DOI: 10.3390/jcm12134487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 06/27/2023] [Accepted: 06/30/2023] [Indexed: 07/15/2023] Open
Abstract
Hearing loss is a prevalent health issue that affects individuals worldwide. Binaural hearing refers to the ability to integrate information received simultaneously from both ears, allowing individuals to identify, locate, and separate sound sources. Auditory evoked potentials (AEPs) refer to the electrical responses that are generated within any part of the auditory system in response to auditory stimuli presented externally. Electroencephalography (EEG) is a non-invasive technology used for the monitoring of AEPs. This research aims to investigate the use of audiometric EEGs as an objective method to detect specific features of binaural hearing with frequency and time domain analysis techniques. Thirty-five subjects with normal hearing and a mean age of 27.35 participated in the research. The stimuli used in the current study were designed to investigate the impact of binaural phase shifts of the auditory stimuli in the presence of noise. The frequency domain and time domain analyses provided statistically significant and promising novel findings. The study utilized Blackman windowed 18 ms and 48 ms pure tones as stimuli, embedded in noise maskers, of frequencies 125 Hz, 250 Hz, 500 Hz, 750 Hz, 1000 Hz in homophasic (the same phase in both ears) and antiphasic (180-degree phase difference between the two ears) conditions. The study focuses on the effect of phase reversal of auditory stimuli in noise of the middle latency response (MLR) and late latency response (LLR) regions of the AEPs. The frequency domain analysis revealed a significant difference in the frequency bands of 20 to 25 Hz and 25 to 30 Hz when elicited by antiphasic and homophasic stimuli of 500 Hz for MLRs and 500 Hz and 250 Hz for LLRs. The time domain analysis identified the Na peak of the MLR for 500 Hz, the N1 peak of the LLR for 500 Hz stimuli and the P300 peak of the LLR for 250 Hz as significant potential markers in detecting binaural processing in the brain.
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Affiliation(s)
- Eva Ignatious
- College of Engineering and IT, Charles Darwin University, Casuarina 0810, Australia
| | - Sami Azam
- College of Engineering and IT, Charles Darwin University, Casuarina 0810, Australia
| | - Mirjam Jonkman
- College of Engineering and IT, Charles Darwin University, Casuarina 0810, Australia
| | - Friso De Boer
- College of Engineering and IT, Charles Darwin University, Casuarina 0810, Australia
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Fageeh YA, Alghoribi MH, Albishi MM, Alshanbari AA, Alqethami AA, Altowairqi TM, Alosaimi NK. Parent Awareness and Perceived Barriers Regarding Hearing Impairment among School Age Children in Taif Region of Saudi Arabia. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2023; 15:S403-S408. [PMID: 37654376 PMCID: PMC10466535 DOI: 10.4103/jpbs.jpbs_527_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/06/2022] [Accepted: 12/16/2022] [Indexed: 09/02/2023] Open
Abstract
Background Hearing impairment (HI) is the most common global disabling condition. It is a considerable public health condition in childhood that is associated with long-term socio-emotional-academic, and communication difficulties. The current study explored the knowledge and awareness of HI among school-age children and its related factor in Taif, Saudi Arabia. Materials and Methods A cross-sectional study was done on 268 Saudi school-age children in the population of the Taif region of Saudi Arabia. A predesigned questionnaire was used to collect their demographic data, consanguinity, education level, and academic performance. Results About 45.9% of parents had good awareness related to hearing loss and its impact on children's life. Only 19% (n = 51) of parents reported that their children encountered language problems in communicating with others. When we assessed the relationship between this language problem and academic performance, it was found that children with language problems had below-average academic performance (P < 0.001). Conclusion The study showed that parents' awareness about children's hearing was not that satisfactory, and there was a considerable amount of difficulties faced by the children in their personal and social life due to these hearing problems. It is imperative to create awareness among the public regarding various modifiable risk factors of HI by conducting health awareness campaigns.
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Affiliation(s)
- Yahya A. Fageeh
- Department of Surgery, College of Medicine, Taif University, Saudi Arabia
| | - Manar H. Alghoribi
- Department of Internal Medicine, College of Medicine, Taif University, Saudi Arabia
| | - Maryam M. Albishi
- Department of Family Medicine, College of Medicine, Taif University, Saudi Arabia
| | - Atheer A. Alshanbari
- Department of Family Medicine, College of Medicine, Taif University, Saudi Arabia
| | - Amjad A. Alqethami
- Department of Family Medicine, College of Medicine, Taif University, Saudi Arabia
| | | | - Norah K. Alosaimi
- Department of Plastic Surgery, College of Medicine, Taif University, Saudi Arabia
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Verstappen G, Foulon I, Van den Houte K, Heuninck E, Van Overmeire B, Gordts F, Topsakal V. Analysis of congenital hearing loss after neonatal hearing screening. Front Pediatr 2023; 11:1153123. [PMID: 37255573 PMCID: PMC10226668 DOI: 10.3389/fped.2023.1153123] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 04/26/2023] [Indexed: 06/01/2023] Open
Abstract
Introduction Neonates undergo neonatal hearing screening to detect congenital hearing loss at an early stage. Once confirmed, it is necessary to perform an etiological workup to start appropriate treatment. The study objective was to assess the different etiologies, risk factors, and hearing results of infants with permanent hearing loss and to evaluate the efficacy and consequences of the different screening devices over the last 21 years. Methods We conducted a single-center retrospective cohort analysis for all neonatal hearing screening program referrals and performed an etiological workup in case of confirmed hearing loss. We analyzed the evolution of the etiological protocols based on these results. Results The governmental neonatal hearing screening program referred 545 infants to our center. Hearing loss was confirmed in 362 (66.4%) infants and an audiological workup was performed in 458 (84%) cases. 133 (24.4%) infants were diagnosed with permanent hearing loss. Ninety infants (56 bilateral and 34 unilateral) had sensorineural hearing loss, and the degree was predominantly moderate or profound. The most common etiology in bilateral sensorineural hearing loss was a genetic etiology (32.1%), and in unilateral sensorineural hearing loss, an anatomical abnormality (26.5%). Familial history of hearing loss was the most frequently encountered risk factor. Conclusion There is a significant number of false positives after the neonatal hearing screening. Permanent hearing loss is found only in a limited number of infants. During the 21 years of this study, we noticed an increase in etiological diagnoses, especially genetic causes, due to more advanced techniques. Genetic causes and anatomical abnormalities are the most common etiology of bilateral and unilateral sensorineural hearing loss, respectively, but a portion remains unknown after extensive examinations.
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Affiliation(s)
- Gill Verstappen
- Department of Otorhinolaryngology—Head and Neck Surgery, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Health Campus, Brussels, Belgium
| | - Ina Foulon
- Department of Otorhinolaryngology—Head and Neck Surgery, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Health Campus, Brussels, Belgium
| | - Kelsey Van den Houte
- Department of Otorhinolaryngology—Head and Neck Surgery, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Health Campus, Brussels, Belgium
| | - Emilie Heuninck
- Department of Otorhinolaryngology—Head and Neck Surgery, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Health Campus, Brussels, Belgium
| | - Bart Van Overmeire
- Medical Department/Preventive Medicine, Kind en Gezin-Opgroeien, Vlaamse Overheid, Brussels, Belgium
| | - Frans Gordts
- Department of Otorhinolaryngology—Head and Neck Surgery, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Health Campus, Brussels, Belgium
| | - Vedat Topsakal
- Department of Otorhinolaryngology—Head and Neck Surgery, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Health Campus, Brussels, Belgium
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Wen C, Yang X, Cheng X, Zhang W, Li Y, Wang J, Wang C, Ruan Y, Zhao L, Lu H, Li Y, Bai Y, Yu Y, Li Y, Xie J, Qi BE, En H, Liu H, Fu X, Huang L, Han D. Optimized concurrent hearing and genetic screening in Beijing, China: A cross-sectional study. Biosci Trends 2023; 17:148-159. [PMID: 37062750 DOI: 10.5582/bst.2023.01051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
Concurrent screening has been proven to provide a comprehensive approach for management of congenital deafness and prevention of ototoxicity. The SLC26A4 gene is associated with late-onset hearing loss and is of great clinical concern. For much earlier detection of newborns with deafness-causing mutations in the SLC26A4 gene, the Beijing Municipal Government launched a chip for optimized genetic screening of 15 variants of 4 genes causing deafness based on a chip to screen for 9 variants of 4 genes, and 6 variants of the SLC26A4 gene have now been added. To ascertain the advantage of a screening chip including 15 variants of 4 genes, the trends in concurrent hearing and genetic screening were analyzed in 2019 and 2020. Subjects were 76,460 newborns who underwent concurrent hearing and genetic screening at 24 maternal and child care centers in Beijing from January 2019 to December 2020. Hearing screening was conducted using transiently evoked otoacoustic emissions (TEOAEs), distortion product otoacoustic emissions (DPOAE), or the automated auditory brainstem response (AABR). Dried blood spots were collected for genetic testing and 15 variants of 4 genes, namely GJB2, SLC26A4, mtDNA 12S rRNA, and GJB3, were screened for using a DNA microarray platform. The initial referral rate for hearing screening decreased from 3.60% (1,502/41,690) in 2019 to 3.23% (1,124/34,770) in 2020, and the total referral rate for hearing screening dropped form 0.57% (236/41,690) in 2019 to 0.54% (187/34,770) in 2020, indicating the reduced false positive rate of newborn hearing screening and policies to prevent hearing loss conducted by the Beijing Municipal Government have had a significant effect. Positivity according to genetic screening was similar in 2019 (4.970%, 2,072/41,690) and 2020 (4.863%,1,691/34,770), and the most frequent mutant alleles were c.235 del C in the GJB2 gene, followed by c.919-2 A > G in the SLC26A4 gene, and c.299 del AT in the GJB2 gene. In this cohort study, 71.43% (5/7) of newborns with 2 variants of the SLC26A4 gene were screened for newly added mutations, and 28.57% (2/7) of newborns with 2 variants of the SLC26A4 gene passed hearing screening, suggesting that a screening chip including 15 variants of 4 genes was superior at early detection of hearing loss, and especially in early identification of newborns with deafness-causing mutations in the SLC26A4 gene. These findings have clinical significance.
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Affiliation(s)
- Cheng Wen
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, China
| | - Xiaozhe Yang
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, China
| | - Xiaohua Cheng
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, China
| | - Wei Zhang
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, China
| | - Yichen Li
- Maternal and Child Health, Beijing Obstetrics and Gynecology Hospital, Capital Medical University. Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Jing Wang
- Maternal and Child Health, Beijing Obstetrics and Gynecology Hospital, Capital Medical University. Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Chuan Wang
- Maternal and Child Health Hospital of Chao Yang District, Beijing, China
| | - Yu Ruan
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, China
| | - Liping Zhao
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, China
| | - Hongli Lu
- CapitalBio Corporation & National Engineering Research Center for Beijing Biochip Technology, Beijing, China
| | - Yingxin Li
- CapitalBio Corporation & National Engineering Research Center for Beijing Biochip Technology, Beijing, China
| | - Yue Bai
- CapitalBio Corporation & National Engineering Research Center for Beijing Biochip Technology, Beijing, China
| | - Yiding Yu
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, China
| | - Yue Li
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, China
| | - Jinge Xie
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, China
| | - Bei-Er Qi
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, China
| | - Hui En
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, China
| | - Hui Liu
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, China
| | - Xinxing Fu
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, China
| | - Lihui Huang
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, China
| | - Demin Han
- Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Institute of Otolaryngology, Beijing, China
- Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing, China
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Bitarafan F, Razmara E, Jafarinia E, Almadani N, Garshasbi M. A biallelic variant in POLR2C is associated with congenital hearing loss and male infertility: Case report. Eur J Clin Invest 2023; 53:e13946. [PMID: 36576366 DOI: 10.1111/eci.13946] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 11/28/2022] [Accepted: 12/08/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND DNA-directed RNA polymerase II subunit 3 (RPB3) is the third largest subunit of RNA polymerase II and is encoded by the POLR2C (OMIM:180663). A large Iranian family with congenital hearing loss and infertility is described here with genetic and clinical characterizations of five male patients. METHODS After doing clinical examinations, the proband was subjected to karyotyping and GJB2/6 sequencing to rule out the most evident chromosomal and gene abnormalities for male infertility and hearing loss, respectively. A custom-designed next-generation sequencing panel was also used to detect mutations in deafness-related genes. Finally, to reveal the underlying molecular cause(s) justifying hearing loss and male infertility, five male patients and 2 healthy male controls within the family were subjected to paired-end whole-exome sequencing (WES). Linkage analysis was also performed based on the data. RESULTS All male patients showed prelingual sensorineural hearing loss and also decreased sperm motility. Linkage analysis determined 16q21 as the most susceptible locus in which a missense variant in exon 7 of POLR2C-NM_032940.3:c.545T>C;p.(Val182Ala)-was identified as a 'likely pathogenic' variant co-segregated with phenotypes. CONCLUSIONS Using segregation and in silico analyses, for the first time, we suggested that the NM_032940.3:c.545T>C; p.(Val182Ala) in POLR2C is associated with hearing loss and male infertility.
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Affiliation(s)
- Fatemeh Bitarafan
- Department of Cellular and Molecular Biology, North Tehran Branch, Islamic Azad University, Tehran, Iran.,Department of Medical Genetics, DeNA Laboratory, Tehran, Iran
| | - Ehsan Razmara
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Teheran, Iran
| | - Ehsan Jafarinia
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Teheran, Iran
| | - Navid Almadani
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Masoud Garshasbi
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Teheran, Iran
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Núñez Batalla FJ, Fernández-Cedrón Bermejo C, Guntín García M, Sandoval Menéndez I, Fresno Díaz E, Gómez Martínez JR, Llorente Pendás JL. Cribado auditivo neonatal universal e hipoacusia diferida o de desarrollo tardío. ACTA OTORRINOLARINGOLOGICA ESPANOLA 2023. [DOI: 10.1016/j.otorri.2022.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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30
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Oh KS, Roh JW, Joo SY, Ryu K, Kim JA, Kim SJ, Jang SH, Koh YI, Kim DH, Kim HY, Choi M, Jung J, Namkung W, Nam JH, Choi JY, Gee HY. Overlooked KCNQ4 variants augment the risk of hearing loss. Exp Mol Med 2023; 55:844-859. [PMID: 37009795 PMCID: PMC10167218 DOI: 10.1038/s12276-023-00976-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 11/28/2022] [Accepted: 01/17/2023] [Indexed: 04/04/2023] Open
Abstract
Pathogenic variants of KCNQ4 cause symmetrical, late-onset, progressive, high-frequency-affected hearing loss, which eventually involves all frequencies with age. To understand the contribution of KCNQ4 variants to hearing loss, we analyzed whole-exome and genome sequencing data from patients with hearing loss and individuals whose hearing phenotypes were unknown. In KCNQ4, we identified seven missense variants and one deletion variant in 9 hearing loss patients and 14 missense variants in the Korean population with an unknown hearing loss phenotype. The p.R420W and p.R447W variants were found in both cohorts. To investigate the effects of these variants on KCNQ4 function, we performed whole-cell patch clamping and examined their expression levels. Except for p.G435Afs*61, all KCNQ4 variants exhibited normal expression patterns similar to those of wild-type KCNQ4. The p.R331Q, p.R331W, p.G435Afs*61, and p.S691G variants, which were identified in patients with hearing loss, showed a potassium (K+) current density lower than or similar to that of p.L47P, a previously reported pathogenic variant. The p.S185W and p.R216H variants shifted the activation voltage to hyperpolarized voltages. The channel activity of the p.S185W, p.R216H, p.V672M, and p.S691G KCNQ4 proteins was rescued by the KCNQ activators retigabine or zinc pyrithione, whereas p.G435Afs*61 KCNQ4 proteins were partially rescued by sodium butyrate, a chemical chaperone. Additionally, the structure of the variants predicted using AlphaFold2 showed impaired pore configurations, as did the patch-clamp data. Our findings suggest that KCNQ4 variants may be overlooked in hearing loss that starts in adulthood. Some of these variants are medically treatable; hence, genetic screening for KCNQ4 is important.
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Affiliation(s)
- Kyung Seok Oh
- Department of Pharmacology, Graduate School of Medical Science, Yonsei University College of Medicine, Brain Korea 21 Project, Seoul, 03722, Republic of Korea
| | - Jae Won Roh
- Department of Pharmacology, Graduate School of Medical Science, Yonsei University College of Medicine, Brain Korea 21 Project, Seoul, 03722, Republic of Korea
| | - Sun Young Joo
- Department of Pharmacology, Graduate School of Medical Science, Yonsei University College of Medicine, Brain Korea 21 Project, Seoul, 03722, Republic of Korea
| | - Kunhi Ryu
- Yonsei University College of Pharmacy, Incheon, 21983, Republic of Korea
| | - Jung Ah Kim
- Department of Pharmacology, Graduate School of Medical Science, Yonsei University College of Medicine, Brain Korea 21 Project, Seoul, 03722, Republic of Korea
| | - Se Jin Kim
- Department of Pharmacology, Graduate School of Medical Science, Yonsei University College of Medicine, Brain Korea 21 Project, Seoul, 03722, Republic of Korea
| | - Seung Hyun Jang
- Department of Pharmacology, Graduate School of Medical Science, Yonsei University College of Medicine, Brain Korea 21 Project, Seoul, 03722, Republic of Korea
| | - Young Ik Koh
- Department of Pharmacology, Graduate School of Medical Science, Yonsei University College of Medicine, Brain Korea 21 Project, Seoul, 03722, Republic of Korea
| | - Da Hye Kim
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Hye-Youn Kim
- Department of Pharmacology, Graduate School of Medical Science, Yonsei University College of Medicine, Brain Korea 21 Project, Seoul, 03722, Republic of Korea
| | - Murim Choi
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Jinsei Jung
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Wan Namkung
- Yonsei University College of Pharmacy, Incheon, 21983, Republic of Korea
| | - Joo Hyun Nam
- Department of Physiology, Dongguk University College of Medicine, Gyeongju, 38066, Republic of Korea.
- Channelopathy Research Center (CRC), Dongguk University College of Medicine, Gyeonggi-do, 10326, Republic of Korea.
| | - Jae Young Choi
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
| | - Heon Yung Gee
- Department of Pharmacology, Graduate School of Medical Science, Yonsei University College of Medicine, Brain Korea 21 Project, Seoul, 03722, Republic of Korea.
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31
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Ferla R, Dell’Aquila F, Doria M, Ferraiuolo M, Noto A, Grazioli F, Ammendola V, Testa F, Melillo P, Iodice C, Risca G, Tedesco N, le Brun PR, Surace EM, Simonelli F, Galimberti S, Valsecchi MG, Marteau JB, Veron P, Colloca S, Auricchio A. Efficacy, pharmacokinetics, and safety in the mouse and primate retina of dual AAV vectors for Usher syndrome type 1B. Mol Ther Methods Clin Dev 2023; 28:396-411. [PMID: 36910588 PMCID: PMC9996380 DOI: 10.1016/j.omtm.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 02/07/2023] [Indexed: 02/12/2023]
Abstract
Gene therapy of Usher syndrome type 1B (USH1B) due to mutations in the large Myosin VIIA (MYO7A) gene is limited by the packaging capacity of adeno-associated viral (AAV) vectors. To overcome this, we have previously developed dual AAV8 vectors which encode human MYO7A (dual AAV8.MYO7A). Here we show that subretinal administration of 1.37E+9 to 1.37E+10 genome copies of a good-manufacturing-practice-like lot of dual AAV8.MYO7A improves the retinal defects of a mouse model of USH1B. The same lot was used in non-human primates at doses 1.6× and 4.3× the highest dose proposed for the clinical trial which was based on mouse efficacy data. Long-lasting alterations in retinal function and morphology were observed following subretinal administration of dual AAV8.MYO7A at the high dose. These findings were modest and improved over time in the low-dose group, as also observed in other studies involving the use of AAV8 in non-human primates and humans. Biodistribution and shedding studies confirmed the presence of vector DNA mainly in the visual pathway. Accordingly, we detected human MYO7A mRNA expression predominantly in the retina. Overall, these studies pave the way for the clinical translation of subretinal administration of dual AAV vectors in USH1B subjects.
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Affiliation(s)
- Rita Ferla
- Telethon Institute of Genetics and Medicine (TIGEM), Via Campi Flegrei 34, 80078 Pozzuoli, Italy
- AAVantgarde BIO Srl, 20123 Milan, Italy
- Corresponding author: Rita Ferla, Telethon institute of Genetics and Medicine (TIGEM), Via Campi Flegrei 34, 80078 Pozzuoli, Italy; AAVantgarde BIO Srl, 20123 Milan, Italy
| | - Fabio Dell’Aquila
- Telethon Institute of Genetics and Medicine (TIGEM), Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Monica Doria
- Telethon Institute of Genetics and Medicine (TIGEM), Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | | | | | | | | | - Francesco Testa
- Eye Clinic, Multidisciplinary Department of Medical Surgical and Dental Sciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy
| | - Paolo Melillo
- Eye Clinic, Multidisciplinary Department of Medical Surgical and Dental Sciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy
| | - Carolina Iodice
- Telethon Institute of Genetics and Medicine (TIGEM), Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Giulia Risca
- Center of Biostatistics for Clinical Epidemiology, School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
| | - Novella Tedesco
- Genethon, 91000 Evry, France
- Université Paris-Saclay, University Evry 91000, INSERM, Genethon, Integrare Research Unit UMR_S951, 91000 Evry, France
| | - Pierre Romain le Brun
- Genethon, 91000 Evry, France
- Université Paris-Saclay, University Evry 91000, INSERM, Genethon, Integrare Research Unit UMR_S951, 91000 Evry, France
| | - Enrico Maria Surace
- Medical Genetics, Department of Translational Medicine, University of Naples “Federico II”, 80131 Naples, Italy
| | - Francesca Simonelli
- Eye Clinic, Multidisciplinary Department of Medical Surgical and Dental Sciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy
| | - Stefania Galimberti
- Center of Biostatistics for Clinical Epidemiology, School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
| | - Maria Grazia Valsecchi
- Center of Biostatistics for Clinical Epidemiology, School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
| | | | - Philippe Veron
- Genethon, 91000 Evry, France
- Université Paris-Saclay, University Evry 91000, INSERM, Genethon, Integrare Research Unit UMR_S951, 91000 Evry, France
| | | | - Alberto Auricchio
- Telethon Institute of Genetics and Medicine (TIGEM), Via Campi Flegrei 34, 80078 Pozzuoli, Italy
- AAVantgarde BIO Srl, 20123 Milan, Italy
- Department of Advanced Biomedical Sciences, “Federico II” University, 80131 Naples, Italy
- Corresponding author: Alberto Auricchio, Telethon institute of Genetics and Medicine (TIGEM), Via Campi Flegrei 34, 80078 Pozzuoli, Italy; AAVantgarde BIO Srl, 20123 Milan, Italy.
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Fitzgibbons EJ, Keszegi S, Driscoll C, Beswick R. Childhood hearing loss detected beyond the newborn screen. Int J Audiol 2023; 62:278-285. [PMID: 35225141 DOI: 10.1080/14992027.2022.2042606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To understand the characteristics of postnatal hearing loss (PNHL) identified via different referral pathways, to inform childhood hearing screening and referral practices. DESIGN Retrospective analysis of screening and audiology records. STUDY SAMPLE A cohort of 385 children who passed newborn hearing screening in Queensland, Australia between September 2004 and December 2017 and were later diagnosed with permanent hearing loss. RESULTS Neonatally identified risk factors facilitated detection for half the cohort, with PNHL detected earlier (average age of 31 months) and at a milder degree. PNHL was detected at an average age of 49 months via other pathways. Proportions of bilateral moderate or greater PNHL were greatest in children with significant medical circumstances (60.7%) and those with noted delays or concerns (39.2%), whereas childhood hearing screening programs detected greater proportions of unilateral moderate or greater PNHL (47.4%). CONCLUSIONS Risk-factor-based surveillance detects PNHL early but does not detect all cases. Screening children with speech and language delays, parental or professional concern, or with relevant medical circumstances (eg meningitis or chemotherapy) is warranted based on the types of PNHL detected. Further evidence may be required to justify the rollout of postnatal population childhood screening programs.
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Affiliation(s)
- E Jane Fitzgibbons
- Healthy Hearing Program, Children's Health Queensland Hospital and Health Service, Brisbane, Australia
| | - Stephanie Keszegi
- Healthy Hearing Program, Children's Health Queensland Hospital and Health Service, Brisbane, Australia
| | - Carlie Driscoll
- School of Health and Rehabilitation Services, University of Queensland, Brisbane, Australia
| | - Rachael Beswick
- Healthy Hearing Program, Children's Health Queensland Hospital and Health Service, Brisbane, Australia
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Yin J, Su Y, Siyuan L, Yin F, Wang W, Deng F, Wang T. Association between in vitro fertilization-embryo transfer and hearing loss: risk factors for hearing loss among twin infants in a cohort study. Eur J Pediatr 2023; 182:1289-1297. [PMID: 36637539 DOI: 10.1007/s00431-022-04767-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 12/09/2022] [Accepted: 12/14/2022] [Indexed: 01/14/2023]
Abstract
Assisted reproductive technologies (ART), including in vitro fertilization-embryo transfer (IVF-ET) and intracytoplasmic sperm injection (ICSI), are known to contribute a higher risk of birth defects; however, studies have rarely evaluated the association between IVF-ET and diagnostic hearing loss (HL). This study aimed to evaluate the prevalence of and risk factors for HL and to clarify the association between IVF-ET and HL among twinborn infants. We enrolled 1860 live-born twin neonates born at a hospital in China from January 2017 to December 2020. After multi-step hearing screening, participants were diagnosed with HL by pediatric audiologists at 6 months of age. The prevalence of hearing loss and the adjusted odds ratios (AORs) for specific risk factors were estimated using generalized estimation equation (GEE) models in twin-born infants. Characteristics and prevalence of failure for hearing screening and HL were measured in IVF-ET twin infants. IVF-ET conception and preterm birth conferred a higher risk of hearing loss, with increased adjusted odds ratios (AOR [95% confidence intervals (CI)] IVF-ET: 2.82 [1.17-6.80], P = 0.021; preterm birth: 6.14 [2.30-16.40], P < 0.001) than the control group, respectively. Among the 1860 twin infants, more IVF-ET twins failed in dual-step hearing screening (3.26%) and were diagnosed with hearing loss (2.21%) than those conceived by spontaneous pregnancy. CONCLUSION IVF-ET conception and premature birth were associated with a higher risk of hearing impairment. Twin infants conceived by IVF-ET tended to fail in hearing screening and be diagnosed with hearing loss. These observations provide a more comprehensive approach for the prevention and management of deafness in twin-born children. WHAT IS KNOWN • IVF-ET technologies conferred a higher risk of birth defects. WHAT IS NEW • Premature birth and IVF-ET conception were associated with a higher risk of hearing loss among twin infants. • Twin infants conceived by IVF-ET tended to fail in hearing screening and diagnosed with hearing loss.
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Affiliation(s)
- Jinghua Yin
- Department of Pathophysiology, Xiangya Hospital, Central South University, Changsha, China
| | - Yu Su
- Changsha Hospital for Maternal & Child Health Care Affiliated to Hunan Normal University, No. 416 Chengnan Dong Rd, Yuhua District, Changsha, 410007, People's Republic of China
| | - Linpeng Siyuan
- Changsha Hospital for Maternal & Child Health Care Affiliated to Hunan Normal University, No. 416 Chengnan Dong Rd, Yuhua District, Changsha, 410007, People's Republic of China
| | - Fei Yin
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, China
| | - Weidong Wang
- Changsha Hospital for Maternal & Child Health Care Affiliated to Hunan Normal University, No. 416 Chengnan Dong Rd, Yuhua District, Changsha, 410007, People's Republic of China
| | - Fengliang Deng
- Changsha Hospital for Maternal & Child Health Care Affiliated to Hunan Normal University, No. 416 Chengnan Dong Rd, Yuhua District, Changsha, 410007, People's Republic of China.
| | - Taosha Wang
- Changsha Hospital for Maternal & Child Health Care Affiliated to Hunan Normal University, No. 416 Chengnan Dong Rd, Yuhua District, Changsha, 410007, People's Republic of China.
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Prestes R, Pandini VCM, Pereira T, Pomilio MCA, Andrade AND, Mizani RM, Fajardo TCG, Gazeta RE, Bertozzi APAP, Lourenço EA, Passos SD. Assessing the hearing of children exposed to zika virus with an initially normal newborn hearing screen: a longitudinal cohort study. Acta Otolaryngol 2023; 143:31-36. [PMID: 36661392 DOI: 10.1080/00016489.2023.2165145] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BACKGROUND Zika virus (ZIKV) infection can result in hearing loss in babies, consequently, audiological monitoring is necessary. AIMS This study aimed to evaluate the frequency of hearing impairment in neonates and children exposed to ZIKV during the intrauterine period. MATERIALS AND METHODS A cohort of 30 children born to mothers infected with ZIKV during pregnancy (March 2016-January 2017) underwent repeated hearing assessments performed 48 h after birth. Universal Newborn Hearing Screening revealed normal results in all children at 6, 13, 24, and 36 months. Children were divided into two subgroups based on real-time polymerase chain reaction: RT-PCR(+) and RT-PCR(-). RESULTS At 24 months, the cumulative incidence of hearing alteration was 57.1%. There was no significant difference in the detection of hearing alteration between RT-PCR(+) and (-) groups. None of the children had sensorineural hearing loss. CONCLUSIONS AND SIGNIFICANCE None of the children had sensorineural hearing loss. Total incidence conductive type (per 1000 live births), RT-PCR ZIKV (-) 2.2, prevalence 20% and RT-PCR ZIKV 3.1, prevalence 35.7%.The incidence of hearing alteration was highest at 24 months of age (57.1%, n = 8; only conductive type).
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Affiliation(s)
- Raquel Prestes
- Student pós graduation, Medicine College of Jundiai, Jundiai, Brazil
| | | | - Tânia Pereira
- Therapeutic Association for Language and Hearing Stimulation, Jundiai, Brazil
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The Frequency of Common Deafness-Associated Variants Among 3,555,336 Newborns in China and 141,456 Individuals Across Seven Populations Worldwide. Ear Hear 2023; 44:232-241. [PMID: 36149380 DOI: 10.1097/aud.0000000000001274] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Genetic screening can benefit early detection and intervention for hearing loss. The frequency of common deafness-associated variants in general populations is highly important for genetic screening and genetic counseling tailored to different ethnic backgrounds. We aimed to analyze the frequency of common deafness-associated variants in a large population-based Chinese newborn cohort and to explore the population-specific features in diverse populations worldwide. DESIGN This population-based cohort study analyzed the frequency of common deafness-associated variants in 3,555,336 newborns in the Chinese Newborn Concurrent Hearing and Genetic Screening cohort. Participants were newborn infants born between January 2007 and September 2020. Limited genetic screening for 20 variants in 4 common deafness-associated genes and newborn hearing screening were offered concurrently to all newborns in the Chinese Newborn Concurrent Hearing and Genetic Screening cohort. Sequence information of 141,456 individuals was also analyzed from seven ethnic populations from the Genome Aggregation Database for 20 common deafness-related variants. Statistical analysis was performed using R. RESULTS A total of 3,555,326 Chinese neonates completed the Newborn Concurrent Hearing and Genetic Screening were included for analysis. We reported the distinct landscape of common deafness-associated variants in this large population-based cohort. We found that the carrier frequencies of GJB2 , SLC26A4 , GJB3 , and MT-RNR were 2.53%, 2.05%, 0.37%, and 0.25%, respectively. Furthermore, GJB2 c.235delC was the most common variant with an allele frequency of 0.99% in the Chinese newborn population. We also demonstrated nine East-Asia-enriched variants, one Ashkenazi Jewish-enriched variant, and one European/American-enriched variant for hearing loss. CONCLUSIONS We showed the distinct landscape of common deafness-associated variants in the Chinese newborn population and provided insights into population-specific features in diverse populations. These data can serve as a powerful resource for otolaryngologists and clinical geneticists to inform population-adjusted genetic screening programs for hearing loss.
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McGregor S, Goldman RD. Les effets sur le langage d’une implantation cochléaire. CANADIAN FAMILY PHYSICIAN MEDECIN DE FAMILLE CANADIEN 2022; 68:739-741. [PMID: 36241407 PMCID: PMC9833142 DOI: 10.46747/cfp.6810739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Question Un jeune bébé suivi par votre clinique a reçu un diagnostic de perte auditive congénitale profonde. Ses parents envisagent un implant cochléaire pour leur enfant, mais ils s’inquiètent de son acquisition du langage avant et après l’intervention chirurgicale. Que devraient-ils savoir à propos de l’intervention, et comment peuventils améliorer les résultats sur le plan du langage? Réponse La perte auditive congénitale est souvent détectée chez les nouveau-nés lors d’un dépistage par des tests auditifs. Les implants cochléaires peuvent améliorer dans l’ensemble les habiletés en langue parlée chez les enfants souffrant d’une déficience auditive profonde. Certains facteurs associés à la réussite de l’acquisition du langage après l’implantation cochléaire sont l’exécution de la procédure en bas âge et l’engagement de la famille dans des programmes d’intervention précoce. L’apprentissage de la langue des signes avant l’opération peut améliorer les résultats subséquents sur le plan du langage et contribuer au sain développement cognitif et socioémotionnel de l’enfant.
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McGregor S, Goldman RD. Language outcomes after cochlear implant. CANADIAN FAMILY PHYSICIAN MEDECIN DE FAMILLE CANADIEN 2022; 68:737-738. [PMID: 36241402 PMCID: PMC9833135 DOI: 10.46747/cfp.6810737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
QUESTION A young infant seen in our practice was diagnosed with profound congenital hearing loss. Their parents want to pursue cochlear implant surgery for their child, but they are concerned about language acquisition before and after the surgery. What should they know about the procedure, and how can they improve language outcomes? ANSWER Congenital hearing loss is often identified on newborn screening hearing tests. Cochlear implants may lead to overall improved spoken language skills among children with profound hearing loss. Some factors associated with successful language acquisition in children after cochlear implant surgery include having the procedure at an earlier age and family engagement in early intervention programs. Learning sign language before cochlear implant surgery may improve subsequent language outcomes and support the child's cognitive and socioemotional success.
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Tuohimaa K, Loukusa S, Löppönen H, Välimaa T, Kunnari S. Communication abilities in children with hearing loss - views of parents and daycare professionals. JOURNAL OF COMMUNICATION DISORDERS 2022; 99:106256. [PMID: 36029613 DOI: 10.1016/j.jcomdis.2022.106256] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 08/12/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
INTRODUCTION Today, children with hearing loss (HL) are diagnosed and fitted with hearing devices at an early age. However, HL may still influence their communicative development. Thus, we need up-to-date research on how children perform in their everyday environments, such as at home or daycare. This study provides an overview of the communication abilities of early-diagnosed children with HL reported by parents and daycare professionals. The first aim of the study is to compare the results of children with bilateral hearing aids (BiHAs) or bilateral cochlear implants (BiCIs) with those of children with normal hearing (NH) and with each other. The second aim of the study is to compare the views of the two respondents, parents and the daycare professionals. In addition, the effects of gender and nonverbal intelligence quotient (IQ) on the responses are explored. METHODS The participants, aged 4;0-6;9, were 25 children with BiHAs, 29 children with BiCIs, and 64 children with NH. The Finnish version of the Children's Communication Checklist-2 (CCC-2) was used to assess the communication skills of the participants. RESULTS Group and nonverbal IQ had a significant effect on the General Communication Composite (GCC) score. Both groups of children with HL had poorer GCC scores than the children with NH, apart from the respondent. The BiHA-group had significantly lower scores than the NH-group on Speech, Syntax, Semantics, and Coherence subscales. The BiCI-group had significantly lower scores than the NH-group across all subscales of the CCC-2. The parents rated the participants significantly higher than the daycare professionals in Speech and Social Relations. In contrast, the daycare professionals rated the participants higher than the parents in Coherence, Inappropriate Initiation, Stereotyped Language, and Use of Context. Furthermore, gender influenced Coherence, Nonverbal Communication, Social Relations, and Interests, for which the girls performed better than the boys. The nonverbal IQ had an effect on Syntax, Semantics, and Use of Context, for which higher nonverbal IQ was associated with better performance. CONCLUSIONS On average the children with HL had poorer communication skills than the children with NH. Pragmatic difficulties were more common in the BiCI-group than in the BiHA-group. The respondents were not completely unanimous, which may be because of the different demands of different environments.
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Affiliation(s)
- Krista Tuohimaa
- Research Unit of Logopedics, University of Oulu, Finland; Child Language Research Center, University of Oulu, Finland.
| | - Soile Loukusa
- Research Unit of Logopedics, University of Oulu, Finland; Child Language Research Center, University of Oulu, Finland
| | - Heikki Löppönen
- Institute of Clinical Medicine, Department of Otorhinolaryngology, University of Eastern Finland, Finland; Department of Otorhinolaryngology - Head and Neck Surgery, Kuopio University Hospital, Finland
| | - Taina Välimaa
- Research Unit of Logopedics, University of Oulu, Finland; Child Language Research Center, University of Oulu, Finland
| | - Sari Kunnari
- Research Unit of Logopedics, University of Oulu, Finland; Child Language Research Center, University of Oulu, Finland
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Hearing loss drug discovery and medicinal chemistry: Current status, challenges, and opportunities. PROGRESS IN MEDICINAL CHEMISTRY 2022; 61:1-91. [PMID: 35753714 DOI: 10.1016/bs.pmch.2022.05.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Hearing loss is a severe high unmet need condition affecting more than 1.5 billion people globally. There are no licensed medicines for the prevention, treatment or restoration of hearing. Prosthetic devices, such as hearing aids and cochlear implants, do not restore natural hearing and users struggle with speech in the presence of background noise. Hearing loss drug discovery is immature, and small molecule approaches include repurposing existing drugs, combination therapeutics, late-stage discovery optimisation of known chemotypes for identified molecular targets of interest, phenotypic tissue screening and high-throughput cell-based screening. Hearing loss drug discovery requires the integration of specialist therapeutic area biology and otology clinical expertise. Small molecule drug discovery projects in the global clinical portfolio for hearing loss are here collated and reviewed. An overview is provided of human hearing, inner ear anatomy, inner ear delivery, types of hearing loss and hearing measurement. Small molecule experimental drugs in clinical development for hearing loss are reviewed, including their underpinning biology, discovery strategy and activities, medicinal chemistry, calculated physicochemical properties, pharmacokinetics and clinical trial status. SwissADME BOILED-Egg permeability modelling is applied to the molecules reviewed, and these results are considered. Non-small molecule hearing loss assets in clinical development are briefly noted in this review. Future opportunities in hearing loss drug discovery for human genomics and targeted protein degradation are highlighted.
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Wang WQ, Gao X, Huang SS, Kang DY, Xu JC, Yang K, Han MY, Zhang X, Yang SY, Yuan YY, Dai P. Genetic Analysis of the LOXHD1 Gene in Chinese Patients With Non-Syndromic Hearing Loss. Front Genet 2022; 13:825082. [PMID: 35711932 PMCID: PMC9196635 DOI: 10.3389/fgene.2022.825082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/22/2022] [Indexed: 11/13/2022] Open
Abstract
Non-syndromic hearing loss (NSHL) is a common neurosensory disease with an extreme genetic heterogeneity which has been linked to variants in over 120 genes. The LOXHD1 gene (DFNB77), encoding lipoxygenase homology domain 1, is a rare hearing loss gene found in several populations. To evaluate the importance of LOXHD1 variants in Chinese patients with NSHL, we performed genetic analysis on LOXHD1 in 2,901 sporadic Chinese patients to identify the aspect and frequency of LOXHD1 causative variants. Next-generation sequencing using a custom gene panel of HL was conducted on 2,641 unrelated patients and whole-exome sequencing on the remaining 260 patients. A total of 33 likely causative variants were identified in 21 patients, including 20 novel variants and 13 previously reported pathogenic variants. Each of the 20 novel variants was evaluated according to ACMG criteria. These findings showed that causative variants in LOXHD1 were found in about 0.72% (21/2,901) of Chinese NSHL patients. This study is by far the largest number of novel variants identified in this gene expanding the range of pathogenic variants in LOXHD1, and suggests that variants in this gene occur relatively commonly in Chinese NSHL patients. This extensive investigation of LOXHD1 in Chinese NSHL patients proposed six recurrent LOXHD1 variants. These findings may assist in both molecular diagnosis and genetic counseling.
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Affiliation(s)
- Wei-Qian Wang
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, ChinaNational Clinical Research Center for Otolaryngologic DiseasesState Key Lab of Hearing Science, Chinese PLA General Hospital, Chinese PLA Medical School, Ministry of Education, College of Otolaryngology Head and Neck Surgery, Beijing, China.,Department of Otolaryngology, PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Xue Gao
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, ChinaNational Clinical Research Center for Otolaryngologic DiseasesState Key Lab of Hearing Science, Chinese PLA General Hospital, Chinese PLA Medical School, Ministry of Education, College of Otolaryngology Head and Neck Surgery, Beijing, China.,Department of Otolaryngology, PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Sha-Sha Huang
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, ChinaNational Clinical Research Center for Otolaryngologic DiseasesState Key Lab of Hearing Science, Chinese PLA General Hospital, Chinese PLA Medical School, Ministry of Education, College of Otolaryngology Head and Neck Surgery, Beijing, China
| | - Dong-Yang Kang
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, ChinaNational Clinical Research Center for Otolaryngologic DiseasesState Key Lab of Hearing Science, Chinese PLA General Hospital, Chinese PLA Medical School, Ministry of Education, College of Otolaryngology Head and Neck Surgery, Beijing, China
| | - Jin-Cao Xu
- Department of Otolaryngology, PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Kun Yang
- Department of Otolaryngology, PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Ming-Yu Han
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, ChinaNational Clinical Research Center for Otolaryngologic DiseasesState Key Lab of Hearing Science, Chinese PLA General Hospital, Chinese PLA Medical School, Ministry of Education, College of Otolaryngology Head and Neck Surgery, Beijing, China
| | - Xin Zhang
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, ChinaNational Clinical Research Center for Otolaryngologic DiseasesState Key Lab of Hearing Science, Chinese PLA General Hospital, Chinese PLA Medical School, Ministry of Education, College of Otolaryngology Head and Neck Surgery, Beijing, China
| | - Su-Yan Yang
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, ChinaNational Clinical Research Center for Otolaryngologic DiseasesState Key Lab of Hearing Science, Chinese PLA General Hospital, Chinese PLA Medical School, Ministry of Education, College of Otolaryngology Head and Neck Surgery, Beijing, China
| | - Yong-Yi Yuan
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, ChinaNational Clinical Research Center for Otolaryngologic DiseasesState Key Lab of Hearing Science, Chinese PLA General Hospital, Chinese PLA Medical School, Ministry of Education, College of Otolaryngology Head and Neck Surgery, Beijing, China
| | - Pu Dai
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, ChinaNational Clinical Research Center for Otolaryngologic DiseasesState Key Lab of Hearing Science, Chinese PLA General Hospital, Chinese PLA Medical School, Ministry of Education, College of Otolaryngology Head and Neck Surgery, Beijing, China
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Oh KS, Walls D, Joo SY, Kim JA, Yoo JE, Koh YI, Kim DH, Rim JH, Choi HJ, Kim HY, Yu S, Smith RJ, Choi JY, Gee HY, Jung J. COCH-related autosomal dominant nonsyndromic hearing loss: a phenotype-genotype study. Hum Genet 2022; 141:889-901. [PMID: 34529116 PMCID: PMC8924011 DOI: 10.1007/s00439-021-02368-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 09/08/2021] [Indexed: 12/20/2022]
Abstract
This phenotype-genotype study aimed to investigate the extent of audioprofile variability related to cochlin major domains and to identify potential ethnic-specific differences associated with COCH-related hearing loss. Eight Korean families (26 cases) were diagnosed with COCH-related hearing loss by exome sequencing. Audiometric test results were combined with those from nine published East Asian families (20 cases) and compared with those from 38 European-descent families (277 cases). Audioprofiles were created by grouping audiometric test results into age ranges by age at testing and then averaging hearing loss thresholds by frequency within age ranges. The functional impact of the identified variants was assessed in vitro by examining the intracellular trafficking, secretion, and cleavage of cochlin. In both East Asian and European-descent families segregating COCH-related hearing loss, deafness-associated variants in non-LCCL domains of cochlin were associated with hearing loss that was more severe earlier in life than hearing loss caused by variants in the LCCL domain. Consistent with this phenotypic difference, functional studies demonstrated distinct pathogenic mechanisms for COCH variants in a domain-dependent manner; specifically, a cytotoxic effect was observed for the p.Phe230Leu variant, which is located in the vWFA1 domain. No ethnic-specific differences in hearing loss progression were observed, except for those attributable to an overrepresentation of presymptomatic cases in the European-descent cohort.
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Affiliation(s)
- Kyung Seok Oh
- Department of Pharmacology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Daniel Walls
- Molecular Otolaryngology and Renal Research Laboratories, Department of Otolaryngology‑Head and Neck Surgery, University of Iowa Carver College of Medicine, Iowa City, IA, 52242, USA
| | - Sun Young Joo
- Department of Pharmacology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jung Ah Kim
- Department of Pharmacology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jee Eun Yoo
- Department of Otorhinolaryngology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Young Ik Koh
- Department of Pharmacology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Da Hye Kim
- Department of Otorhinolaryngology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - John Hoon Rim
- Department of Pharmacology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Hye Ji Choi
- Department of Otorhinolaryngology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Hye-Youn Kim
- Department of Pharmacology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Seyoung Yu
- Department of Pharmacology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Richard J Smith
- Molecular Otolaryngology and Renal Research Laboratories, Department of Otolaryngology‑Head and Neck Surgery, University of Iowa Carver College of Medicine, Iowa City, IA, 52242, USA.
- Interdepartmental Ph.D. Program in Genetics, University of Iowa, Iowa City, IA, 52242, USA.
- Department of Molecular Physiology and Biophysics, University of Iowa Carver College of Medicine, Iowa City, IA, 52242, USA.
| | - Jae Young Choi
- Department of Otorhinolaryngology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| | - Heon Yung Gee
- Department of Pharmacology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| | - Jinsei Jung
- Department of Pharmacology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
- Department of Otorhinolaryngology, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
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Miyoshi T, Belyantseva IA, Kitajiri SI, Miyajima H, Nishio SY, Usami SI, Kim BJ, Choi BY, Omori K, Shroff H, Friedman TB. Human deafness-associated variants alter the dynamics of key molecules in hair cell stereocilia F-actin cores. Hum Genet 2022; 141:363-382. [PMID: 34232383 PMCID: PMC11351816 DOI: 10.1007/s00439-021-02304-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 06/15/2021] [Indexed: 12/16/2022]
Abstract
Stereocilia protrude up to 100 µm from the apical surface of vertebrate inner ear hair cells and are packed with cross-linked filamentous actin (F-actin). They function as mechanical switches to convert sound vibration into electrochemical neuronal signals transmitted to the brain. Several genes encode molecular components of stereocilia including actin monomers, actin regulatory and bundling proteins, motor proteins and the proteins of the mechanotransduction complex. A stereocilium F-actin core is a dynamic system, which is continuously being remodeled while maintaining an outwardly stable architecture under the regulation of F-actin barbed-end cappers, severing proteins and crosslinkers. The F-actin cores of stereocilia also provide a pathway for motor proteins to transport cargos including components of tip-link densities, scaffolding proteins and actin regulatory proteins. Deficiencies and mutations of stereocilia components that disturb this "dynamic equilibrium" in stereocilia can induce morphological changes and disrupt mechanotransduction causing sensorineural hearing loss, best studied in mouse and zebrafish models. Currently, at least 23 genes, associated with human syndromic and nonsyndromic hearing loss, encode proteins involved in the development and maintenance of stereocilia F-actin cores. However, it is challenging to predict how variants associated with sensorineural hearing loss segregating in families affect protein function. Here, we review the functions of several molecular components of stereocilia F-actin cores and provide new data from our experimental approach to directly evaluate the pathogenicity and functional impact of reported and novel variants of DIAPH1 in autosomal-dominant DFNA1 hearing loss using single-molecule fluorescence microscopy.
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Affiliation(s)
- Takushi Miyoshi
- Laboratory of Molecular Genetics, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Porter Neuroscience Research Center, Room 1F-143A, Bethesda, MD, 20892, USA.
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan.
| | - Inna A Belyantseva
- Laboratory of Molecular Genetics, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Porter Neuroscience Research Center, Room 1F-143A, Bethesda, MD, 20892, USA
| | - Shin-Ichiro Kitajiri
- Department of Hearing Implant Sciences, Shinshu University School of Medicine, 390-8621, Matsumoto, Japan
| | - Hiroki Miyajima
- Department of Otolaryngology, Shinshu University School of Medicine, Matsumoto, 390-8621, Japan
- Department of Otolaryngology, Aizawa Hospital, Matsumoto, 390-8510, Japan
| | - Shin-Ya Nishio
- Department of Hearing Implant Sciences, Shinshu University School of Medicine, 390-8621, Matsumoto, Japan
| | - Shin-Ichi Usami
- Department of Hearing Implant Sciences, Shinshu University School of Medicine, 390-8621, Matsumoto, Japan
| | - Bong Jik Kim
- Department of Otolaryngology-Head and Neck Surgery, Chungnam National University College of Medicine, Chungnam National University Sejong Hospital, Sejong, 30099, South Korea
- Brain Research Institute, Chungnam National University College of Medicine, Daejeon, 35015, South Korea
| | - Byung Yoon Choi
- Department of Otorhinolaryngology, Seoul National University Bundang Hospital, Seongnam, 13620, South Korea
| | - Koichi Omori
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan
| | - Hari Shroff
- Laboratory of High Resolution Optical Imaging, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Thomas B Friedman
- Laboratory of Molecular Genetics, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Porter Neuroscience Research Center, Room 1F-143A, Bethesda, MD, 20892, USA
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Rouse SL, Florentine MM, Taketa E, Chan DK. Racial and ethnic disparities in genetic testing for hearing loss: a systematic review and synthesis. Hum Genet 2022; 141:485-494. [PMID: 34494120 PMCID: PMC9035011 DOI: 10.1007/s00439-021-02335-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 08/09/2021] [Indexed: 11/26/2022]
Abstract
Racial/ethnic disparities in the diagnostic efficacy of genetic testing for hearing loss have been described. These disparities may relate to differences in variant classification between different racial/ethnic groups, which may, in turn, derive from disparate representation of these groups in the published literature. We sought to quantify racial/ethnic disparities in the published literature on the human genetics of hearing loss. We conducted a search of PubMed for articles describing single-gene, multiple-gene, or whole-exome sequencing for individuals with sensorineural hearing loss. Data on the included subjects, including race/ethnicity and/or region of origin, a number of subjects tested, and method of testing, were extracted. 1355 populations representing 311,092 subjects from 1165 studies were included. Overall, subjects of European and Asian ancestry were equivalently represented, but those of Latino American, African, and indigenous North American ancestry were significantly underrepresented; over 96% of all subjects in the published literature were European or Asian. Within populations, the majority of subjects derived from a small subset of countries. The observed disparity was greater for multiple-gene and whole-exome sequencing than for single-gene sequencing. These findings illustrate the large disparity in the published literature on the genetics of hearing loss, and demonstrate the need for increased representation of Latino American, African, and indigenous North American populations.
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Affiliation(s)
| | - Michelle M Florentine
- Department of Otolaryngology-Head and Neck Surgery, University of California-San Francisco, 2233 Post Street, Third Floor, San Francisco, CA, 94115, USA
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Emily Taketa
- Department of Otolaryngology-Head and Neck Surgery, University of California-San Francisco, 2233 Post Street, Third Floor, San Francisco, CA, 94115, USA
| | - Dylan K Chan
- Department of Otolaryngology-Head and Neck Surgery, University of California-San Francisco, 2233 Post Street, Third Floor, San Francisco, CA, 94115, USA.
- Division of Pediatric Otolaryngology-Head and Neck Surgery, University of California-San Francisco, 2233 Post Street, Third Floor, San Francisco, CA, 94115, USA.
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Wen C, Zhao X, Li Y, Yu Y, Cheng X, Li X, Deng K, Yuan X, Huang L. A systematic review of newborn and childhood hearing screening around the world: comparison and quality assessment of guidelines. BMC Pediatr 2022; 22:160. [PMID: 35351033 PMCID: PMC8962144 DOI: 10.1186/s12887-022-03234-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 03/22/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND This study aimed to assess the quality of global guidelines or consensus statements for newborn and childhood hearing screening, as well as to compare various guidelines between other countries and China. METHODS A PROSPERO registered systematic review (number CRD42021242198) was conducted. Multiple electronic databases and government websites including PubMed, EMBASE, Web of Science, CENTRAL, Cochrane Library, and BMJ Best Practice were searched from inception until May 2021. The latest national and international guidelines, consensus statements, technical specifications, and recommendations regarding newborn or childhood hearing screening that were published in Chinese or English medical journals or elsewhere with the full version available online. The following information was extracted independently by two reviewers for comparative analysis: titles, authors, publication year, country, the source organization, and main key recommendations using systems for assigning the level of evidence and strength of recommendations. The quality of the guidelines was assessed by three independent reviewers using the Appraisal of Guidelines for Research and Evaluation, 2nd edition. Intraclass correlation coefficients (ICCs) were calculated to assess among-reviewer agreement. RESULTS We assessed 15 newborn and 6 childhood hearing screening guidelines, respectively. Most newborn guidelines recommend the 1-3-6 guidelines and pre-discharge screening; however, the specific screening times differ. 93.33% of newborn hearing guidelines recommend "primary screening-re-screening-diagnosis-intervention" for well-babies while 73.33% of the guidelines recommend "initial screening-diagnosis-intervention" for newborns in neonatal intensive care unit (NICU); 33.33% of the newborn hearing guidelines recommended initial screening coverage of > 95% while 46.66% did not mention it. Further, 26.66% of the newborn hearing guidelines recommended a referral rate to diagnosis within 4% while 60% did not mention it. Regarding childhood hearing screening guidelines, the screening populations differed across guidelines (age range: 0-9 years); most guidelines recommend pediatric hearing screening for all preschoolers. Only 50% of the guidelines specify screening and re-screening techniques, including pure-tone hearing screening, OAE, tympanometry, and others. The "Clarity of Presentation" domain achieved the highest mean score, and the lowest was "Editorial Independence" both in newborn and childhood guidelines. Overall score of newborn hearing screening guidelines ranged from 3 (2018 Europe) to 7 (2019 America), with an average score of 5.33. Average score of childhood hearing screening guidelines was 4.78, with the score ranging from 4 (2017 England, 2012 Europe, 2016 WHO) to 6.67 (2011 America). ICC analysis revealed excellent agreement across 21 guidelines (> 0.75). CONCLUSIONS These findings indicated newborn hearing screening guidelines had superior quality over childhood ones. Comparative analysis suggested that recommendations of the Chinese newborn and pediatric hearing screening protocols are consistent with the mainstream international opinion. Moreover, this analysis demonstrated that "Editorial Independence" and "Stakeholder Involvement" have the greatest opportunities for improvement. These results may help to advance the quality of hearing screening guidelines in clinical practice and guide evidence-based updates.
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Affiliation(s)
- Cheng Wen
- Key Laboratory of Otolaryngology, Head and Neck Surgery, Ministry of Education, Beijing Institute of Otolaryngology, Beijing Tongren Hospital, Capital Medical University, No. 17 Hougou Lane, Chongnei Street, Beijing, 100005, China
| | - Xuelei Zhao
- Key Laboratory of Otolaryngology, Head and Neck Surgery, Ministry of Education, Beijing Institute of Otolaryngology, Beijing Tongren Hospital, Capital Medical University, No. 17 Hougou Lane, Chongnei Street, Beijing, 100005, China
| | - Yue Li
- Key Laboratory of Otolaryngology, Head and Neck Surgery, Ministry of Education, Beijing Institute of Otolaryngology, Beijing Tongren Hospital, Capital Medical University, No. 17 Hougou Lane, Chongnei Street, Beijing, 100005, China
| | - Yiding Yu
- Key Laboratory of Otolaryngology, Head and Neck Surgery, Ministry of Education, Beijing Institute of Otolaryngology, Beijing Tongren Hospital, Capital Medical University, No. 17 Hougou Lane, Chongnei Street, Beijing, 100005, China
| | - Xiaohua Cheng
- Key Laboratory of Otolaryngology, Head and Neck Surgery, Ministry of Education, Beijing Institute of Otolaryngology, Beijing Tongren Hospital, Capital Medical University, No. 17 Hougou Lane, Chongnei Street, Beijing, 100005, China
| | - Xiaohong Li
- National Center for Birth Defect Monitoring of China, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Kui Deng
- National Center for Birth Defect Monitoring of China, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Xuelian Yuan
- National Center for Birth Defect Monitoring of China, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Lihui Huang
- Key Laboratory of Otolaryngology, Head and Neck Surgery, Ministry of Education, Beijing Institute of Otolaryngology, Beijing Tongren Hospital, Capital Medical University, No. 17 Hougou Lane, Chongnei Street, Beijing, 100005, China.
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Gana S, Serpieri V, Valente EM. Genotype-phenotype correlates in Joubert syndrome: A review. AMERICAN JOURNAL OF MEDICAL GENETICS. PART C, SEMINARS IN MEDICAL GENETICS 2022; 190:72-88. [PMID: 35238134 PMCID: PMC9314610 DOI: 10.1002/ajmg.c.31963] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/04/2022] [Accepted: 02/15/2022] [Indexed: 01/20/2023]
Abstract
Joubert syndrome (JS) is a genetically heterogeneous primary ciliopathy characterized by a pathognomonic cerebellar and brainstem malformation, the “molar tooth sign,” and variable organ involvement. Over 40 causative genes have been identified to date, explaining up to 94% of cases. To date, gene‐phenotype correlates have been delineated only for a handful of genes, directly translating into improved counseling and clinical care. For instance, JS individuals harboring pathogenic variants in TMEM67 have a significantly higher risk of liver fibrosis, while pathogenic variants in NPHP1, RPGRIP1L, and TMEM237 are frequently associated to JS with renal involvement, requiring a closer monitoring of liver parameters, or renal functioning. On the other hand, individuals with causal variants in the CEP290 or AHI1 need a closer surveillance for retinal dystrophy and, in case of CEP290, also for chronic kidney disease. These examples highlight how an accurate description of the range of clinical symptoms associated with defects in each causative gene, including the rare ones, would better address prognosis and help guiding a personalized management. This review proposes to address this issue by assessing the available literature, to confirm known, as well as to propose rare gene‐phenotype correlates in JS.
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Affiliation(s)
- Simone Gana
- Neurogenetics Research Center, IRCCS Mondino Foundation, Pavia, Italy
| | | | - Enza Maria Valente
- Neurogenetics Research Center, IRCCS Mondino Foundation, Pavia, Italy.,Department of Molecular Medicine, University of Pavia, Pavia, Italy
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Byun JC, Lee KY, Hwang SK. Atypical Presentation of Enlarged Vestibular Aqueducts Caused by SLC26A4 Variants. CHILDREN 2022; 9:children9020165. [PMID: 35204885 PMCID: PMC8869968 DOI: 10.3390/children9020165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 01/16/2022] [Accepted: 01/25/2022] [Indexed: 11/16/2022]
Abstract
Enlarged vestibular aqueduct is the most common inner ear malformation in pediatric patients with sensorineural hearing loss. Here, we report a new presentation of enlarged vestibular aqueduct in a Korean family. The family consists of two parents and five daughters, and the first and second daughters were diagnosed with bilateral enlarged vestibular aqueducts. The third daughter, who showed no signs of hearing deterioration, came to medical attention with incomplete Horner syndrome. Evaluations for localization of Horner syndrome on the patient and Sanger sequencing of SLC26A4 on the family members were performed. Although auditory brainstem response and pure tone audiometry of the third daughter were normal, temporal bone computed tomography demonstrated bilateral enlarged vestibular aqueducts. Sanger sequencing of SLC26A4 revealed compound heterozygous variants c.2168A>G and c.919-2A>G in the first, second, and third daughters. Diagnosis of enlarged vestibular aqueduct is often delayed because the degree of hearing loss can vary, and a considerable phenotypic variability can be shown even in family members with the same SLC26A4 variations. Fluctuations of CSF pressure into the cochlear duct and recurrent microruptures of the endolymphatic membrane could result in damage of sympathetic nerve supplying to the inner ear, which could explain the mechanism of Horner syndrome associated with enlarged vestibular aqueduct.
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Affiliation(s)
- Jun Chul Byun
- Department of Pediatrics, School of Medicine, Keimyung University Dongsan Medical Center, Daegu 42601, Korea;
| | - Kyu-Yup Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Kyungpook National University, Daegu 41944, Korea;
| | - Su-Kyeong Hwang
- Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu 41944, Korea
- Correspondence: ; Tel.: +82-53-200-5704; Fax: +82-53-425-6683
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Jin X, Huang S, An L, Zhang C, Dai P, Gao H, Ma X. Variant analysis of 92 Chinese Han families with hearing loss. BMC Med Genomics 2022; 15:12. [PMID: 35062939 PMCID: PMC8781451 DOI: 10.1186/s12920-022-01158-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 01/07/2022] [Indexed: 01/31/2024] Open
Abstract
Abstract
Background
Hearing loss (HL) is the most frequent sensory deficit in humans, HL has strong genetic heterogeneity. The genetic diagnosis of HL is very important to aid treatment decisions and to provide prognostic information and genetic counseling for the patient’s family.
Methods
We undertook pedigree analysis in 92 Chinese non-syndromic HL patients by targeted next-generation sequencing and Sanger sequencing.
Results
Among the 92 HL patients, 18 were assigned a molecular diagnosis with 33 different variants in 14 deafness genes. Eighteen of the variants in 12 deafness genes were novel. Variants in TMC1, CDH23, LOXHD1 and USH2A were each detected in two probands, and variants in POU3F4, OTOA, GPR98, GJB6, TRIOBP, SLC26A4, MYO15A, TNC, STRC and TMPRSS3 were each detected in one proband.
Conclusion
Our findings expand the spectrum of deafness gene variation, which will inform genetic diagnosis of deafness and add to the theoretical basis for the prevention of deafness.
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Van den Borre E, Denys S, Zupan L, de laat JAPM, Božanić Urbančič N, van Wieringen A, Wouters J. Language-Independent Hearing Screening - Increasing the Feasibility of a Hearing Screening Self-Test at School-Entry. Trends Hear 2022; 26:23312165221122587. [PMID: 36114643 PMCID: PMC9486290 DOI: 10.1177/23312165221122587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 08/05/2022] [Accepted: 08/11/2022] [Indexed: 11/22/2022] Open
Abstract
A tablet-based language-independent self-test involving the recognition of ecological sounds in background noise, the Sound Ear Check (SEC), was adapted to make it feasible for young children. Two experiments were conducted. The first experiment investigated the SEC's feasibility, as well as its sensitivity and specificity for detecting childhood hearing loss with a monaural adaptive test procedure. In the second experiment, the SEC sounds, noise, and test format were adapted based on the findings of the first experiment. The adaptations were combined with three test procedures, one similar to the one used in Experiment 1, one presenting the sounds dichotically in diotic noise, and one presenting all the sounds with a fixed signal-to-noise ratio and a stopping rule. Results in young children show high sensitivity and specificity to detect different grades of conductive and sensorineural hearing loss (70-90%). When using an adaptive, monaural procedure, the test duration was approximately 6 min, and 17% of the results obtained were unreliable. Adaptive staircase analyses showed that the unreliable results probably occur due to attention/motivation loss. The test duration could be reduced to 3-4 min with adapted test formats without decreasing the test-retest reliability. The unreliable test results could be reduced from 17% to as low as 5%. However, dichotic presentation requires longer training, reducing the dichotic test format's feasibility.
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Affiliation(s)
- Elien Van den Borre
- Department of Neurosciences, Research Group ExpORL, KU Leuven, Leuven, Belgium
| | - Sam Denys
- Department of Neurosciences, Research Group ExpORL, KU Leuven, Leuven, Belgium
| | - Lea Zupan
- Department of ear, nose, and throat, General Hospital Celje, Celje, Slovenia
| | - Jan A. P. M. de laat
- Department of Audiology (ear, nose, and throat), Leiden University Medical
Center, The Netherlands
| | - Nina Božanić Urbančič
- Department of Otorhinolaryngology and Cervicofacial Surgery, University Medical Centre
Ljubljana, Ljubljana, Slovenia
- Faculty of Medicine, Department of Otorhinolaryngology, University
of Ljubljana, Ljubljana, Slovenia
| | | | - Jan Wouters
- Department of Neurosciences, Research Group ExpORL, KU Leuven, Leuven, Belgium
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Luo H, Yang Y, Wang X, Xu F, Huang C, Liu D, Zhang L, Huang T, Ma P, Lu Q, Huang S, Yang B, Zou Y, Liu Y. Concurrent newborn hearing and genetic screening of common hearing loss variants with bloodspot-based targeted next generation sequencing in Jiangxi province. Front Pediatr 2022; 10:1020519. [PMID: 36389375 PMCID: PMC9659731 DOI: 10.3389/fped.2022.1020519] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 10/06/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND AND AIMS Concurrent hearing and genetic screening of newborns have been widely adopted as an effective strategy in early diagnosis and intervention for hearing loss in many cities in China. Here, we aimed to firstly explore the efficacy of combining conventional hearing screening with genetic screening among the large-scale newborns in Jiangxi Province. METHODS A total of 24,349 newborns from Jiangxi Maternal and Child Health Hospital were enrolled in our study from April 2021 to June 2022. Newborn hearing screening was conducted using otoacoustic emission (OAE) and automated auditory brainstem response (AABR). Meanwhile, newborn dried blood spots were collected and twenty common variants in four genes, including GJB2, SLC26A4, MT-RNR1(12SrRNA), and GJB3, were screened using a BGISEQ-500 next generation sequencing platform. Whole coding regions sequencing of GJB2 and SLC26A4 were performed by Sanger sequencing and NGS, respectively. Following up of hearing for the newborns was undertaken by phone interviews. RESULTS Among the 24,349 newborns, 7.00% (1,704/24,349) were bilaterally or unilaterally referred in their initial hearing screening, whereas 1.30% (316/24,349) exhibited bilateral or unilateral hearing loss in the repeated screening. Genetic screening revealed that 4.813% (1,172/24,349) of the screened newborns were positive for at least one mutant allele (heterozygote, homozygote, or compound heterozygote in one gene, mtDNA homoplasmy or heteroplasmy and combined variants in different genes). A total of 1,146 individuals were identified with mutant allele in one gene, including 525 of GJB2, 371 of SLC26A4, 189 as homoplasmic or heteroplasmic of MT-RNR1, and 61 of GJB3, indicating that GJB2 and SLC26A4 are the most common endemic deafness-associated genes among newborns in Jiangxi Province. Nineteen newborns were detected with combined heterozygous variants in different genes, with "c.235delC heterozygous and c.919-2A > G heterozygous" as the most prevalent genotype. Additionally, seven newborns were screened as homozygotes or compound heterozygotes responsible for congenital or late-onset prelingual hearing loss, including three cases with GJB2 c.235delC homozygous and one with SLC26A4 c.919-2A > G homozygous variant, one case with compound heterozygous variants for GJB2 and two with compound heterozygous variants for SLC26A4. Coding regions sequencing of GJB2 or SLC26A4 for overall 265 infants revealed that 14 individuals were identified as compound heterozygote with a second pathogenic variant not screened by our genetic panel. CONCLUSIONS Herein our study firstly investigated the efficacy of concurrent hearing screening and genetic screening of common hearing impairment variants among large-scale newborns in Jiangxi Province. Concurrent screening provides a more comprehensive approach for management of congenital or delayed onset prelingual hearing loss and prevention of drug-induced hearing impairment for newborns at risk as well as their maternal relatives. An insight into the molecular epidemiology for hearing loss genes among Jiangxi population will also be beneficial to the genetic counseling and birth defect prevention.
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Affiliation(s)
- Haiyan Luo
- Department of Medical Genetics, Jiangxi Key Laboratory of Birth Defect Prevention and Control, Jiangxi Maternal and Child Health Hospital, Nanchang, China
| | - Yan Yang
- Department of Medical Genetics, Jiangxi Key Laboratory of Birth Defect Prevention and Control, Jiangxi Maternal and Child Health Hospital, Nanchang, China
| | - Xinrong Wang
- Department of Medical Genetics, Jiangxi Key Laboratory of Birth Defect Prevention and Control, Jiangxi Maternal and Child Health Hospital, Nanchang, China
| | - Fangping Xu
- Department of Obstetrics, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, China
| | - Cheng Huang
- Department of Medical Genetics, Jiangxi Key Laboratory of Birth Defect Prevention and Control, Jiangxi Maternal and Child Health Hospital, Nanchang, China
| | - Danping Liu
- Department of Medical Genetics, Jiangxi Key Laboratory of Birth Defect Prevention and Control, Jiangxi Maternal and Child Health Hospital, Nanchang, China
| | - Liuyang Zhang
- Department of Medical Genetics, Jiangxi Key Laboratory of Birth Defect Prevention and Control, Jiangxi Maternal and Child Health Hospital, Nanchang, China
| | - Ting Huang
- Department of Medical Genetics, Jiangxi Key Laboratory of Birth Defect Prevention and Control, Jiangxi Maternal and Child Health Hospital, Nanchang, China
| | - Pengpeng Ma
- Department of Medical Genetics, Jiangxi Key Laboratory of Birth Defect Prevention and Control, Jiangxi Maternal and Child Health Hospital, Nanchang, China
| | - Qing Lu
- Department of Medical Genetics, Jiangxi Key Laboratory of Birth Defect Prevention and Control, Jiangxi Maternal and Child Health Hospital, Nanchang, China
| | - Shuhui Huang
- Department of Medical Genetics, Jiangxi Key Laboratory of Birth Defect Prevention and Control, Jiangxi Maternal and Child Health Hospital, Nanchang, China
| | - Bicheng Yang
- Department of Medical Genetics, Jiangxi Key Laboratory of Birth Defect Prevention and Control, Jiangxi Maternal and Child Health Hospital, Nanchang, China
| | - Yongyi Zou
- Department of Medical Genetics, Jiangxi Key Laboratory of Birth Defect Prevention and Control, Jiangxi Maternal and Child Health Hospital, Nanchang, China
| | - Yanqiu Liu
- Department of Medical Genetics, Jiangxi Key Laboratory of Birth Defect Prevention and Control, Jiangxi Maternal and Child Health Hospital, Nanchang, China
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Wang Y, Cheng C, Li C. Newborn hearing loss in the south of China: a cross-sectional study. J Int Med Res 2021; 49:3000605211062448. [PMID: 34861130 PMCID: PMC8647265 DOI: 10.1177/03000605211062448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 11/04/2021] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVE Newborn hearing screening can identify congenital deafness and hearing loss. The current status of newborn hearing screening in the south of China is unclear. We aimed to assess the hearing loss of newborns in Dongguan, China. METHODS A total of 62,545 newborns were enrolled in this retrospective, cross-sectional study between September 2015 and August 2020. The screening procedure was carried out using a two-step hearing screening. The trends were examined by the Cochran-Armitage trend test. RESULTS From 2015 to 2020, the total initial newborn hearing screening rate was 98.16%, and it significantly increased over time (Z = 2.488). The initial screening pass rate of newborns was 90.08%, and no significant difference was observed in the initial screening pass rate between different years (Z = 0.845). After two-step hearing screening, the overall hearing screening pass rate of newborns was 94.65%. The overall hearing screening pass rate in normal newborns was higher than that in high-risk newborns (95.70% vs. 93.59%). CONCLUSION The initial newborn hearing screening rate increased yearly in the study period, but there was still an approximately 10% referral rate. The initial screening pass rate in China needs to be further improved.
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Affiliation(s)
- Yuanming Wang
- Department of Otolaryngology Head and Neck Surgery,
Affiliated Dongguan Maternal and Child Healthcare Hospital, Southern Medical
University, Dongguan, Guangdong, P.R. China
| | - Chen Cheng
- Department of Otolaryngology Head and Neck Surgery,
Affiliated Dongguan Maternal and Child Healthcare Hospital, Southern Medical
University, Dongguan, Guangdong, P.R. China
| | - Chuling Li
- Department of Otolaryngology Head and Neck Surgery,
Affiliated Dongguan Maternal and Child Healthcare Hospital, Southern Medical
University, Dongguan, Guangdong, P.R. China
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