1
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Chang SY, Lee MY. Photobiomodulation as a Potential Adjuvant Therapy to Improve Cochlear Implant Efficiency. Photobiomodul Photomed Laser Surg 2024. [PMID: 39347595 DOI: 10.1089/photob.2024.0097] [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: 10/01/2024] Open
Abstract
Objective: Photobiomodulation (PBM) is a noninvasive therapeutic modality with widespread applications for modulating various biological processes. Although the exact mechanisms of action remain uncertain, PBM promotes homeostasis through diverse pathways, including reducing inflammation and enhancing tissue recovery. Hearing loss is irreversible in mammals due to the limited regenerative capacity of cochlear hair cells. Cochlear implants offer a solution by electrically stimulating the auditory nerve, bypassing damaged hair cells in individuals with severe hearing loss. However, postoperative inflammatory responses and cochlear nerve fiber damage can compromise implant efficacy. Materials and Methods: We investigated current strategies to minimize secondary cochlear damage after cochlear implantation and evaluated the potential of PBM as an adjuvant therapeutic approach. Results: The auditory cell protective effects of PBM could significantly enhance the performance of EAS devices in individuals with residual hearing. Further, postoperative CI is accompanied by an inflammatory response characterized by the upregulation of specific cytokines. Conclusion: Considering the neuroregenerative potential of PBM, its application as a neuroprotective strategy warrants further validation.
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Affiliation(s)
- So-Young Chang
- Beckman Laser Institute Korea, Dankook University, Cheonan, Republic of Korea
| | - Min Young Lee
- Department of Otolaryngology-Head & Neck Surgery, College of Medicine, Dankook University, Cheonan, Republic of Korea
- Medical Laser Research Center, Dankook University, Cheonan, Republic of Korea
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2
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Lo E, Blair J, Yamamoto N, Diaz-Miranda MA, Bedoukian E, Gray C, Lawrence A, Dedhia K, Elden LM, Germiller JA, Kazahaya K, Sobol SE, Luo M, Krantz ID, Hartman TR. Recurrent missense variant identified in two unrelated families with MPZL2-related hearing loss, expanding the variant spectrum associated with DFNB111. Am J Med Genet A 2024; 194:e63530. [PMID: 38197511 DOI: 10.1002/ajmg.a.63530] [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: 10/02/2023] [Revised: 12/17/2023] [Accepted: 12/22/2023] [Indexed: 01/11/2024]
Abstract
MPZL2-related hearing loss is a rare form of autosomal recessive hearing loss characterized by progressive, mild sloping to severe sensorineural hearing loss. Thirty-five previously reported patients had biallelic truncating variants in MPZL2, with the exception of one patient with a missense variant of uncertain significance and a truncating variant. Here, we describe the clinical characteristics and genotypes of five patients from four families with confirmed MPZL2-related hearing loss. A rare missense likely pathogenic variant [NM_005797.4(MPZL2):c.280C>T,p.(Arg94Trp)] located in exon 3 was confirmed to be in trans with a recurrent pathogenic truncating variant that segregated with hearing loss in three of the patients from two unrelated families. This is the first recurrent likely pathogenic missense variant identified in MPZL2. Apparently milder or later-onset hearing loss associated with rare missense variants in MPZL2 indicates that some missense variants in this gene may cause a milder phenotype than that resulting from homozygous or compound heterozygous truncating variants. This study, along with the identification of truncating loss of function and missense MPZL2 variants in several diverse populations, suggests that MPZL2-related hearing loss may be more common than previously appreciated and demonstrates the need for MPZL2 inclusion in hearing loss testing panels.
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Affiliation(s)
- Emma Lo
- Roberts Individualized Medical Genetics Center (RIMGC), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Division of Human Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Justin Blair
- Roberts Individualized Medical Genetics Center (RIMGC), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Division of Human Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Nobuko Yamamoto
- Roberts Individualized Medical Genetics Center (RIMGC), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Division of Otolaryngology, Department of Surgical Specialties, National Center for Children's Health and Development, Tokyo, Japan
| | - Maria Alejandra Diaz-Miranda
- Division of Genomic Diagnostics, Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Emma Bedoukian
- Roberts Individualized Medical Genetics Center (RIMGC), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Division of Human Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Christopher Gray
- Roberts Individualized Medical Genetics Center (RIMGC), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Division of Human Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Audrey Lawrence
- Roberts Individualized Medical Genetics Center (RIMGC), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Division of Human Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Kavita Dedhia
- Division of Otolaryngology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Otorhinolaryngology - Head and Neck Surgery, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Lisa M Elden
- Division of Otolaryngology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Otorhinolaryngology - Head and Neck Surgery, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - John A Germiller
- Division of Otolaryngology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Otorhinolaryngology - Head and Neck Surgery, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Ken Kazahaya
- Division of Otolaryngology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Otorhinolaryngology - Head and Neck Surgery, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Steven E Sobol
- Division of Otolaryngology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Otorhinolaryngology - Head and Neck Surgery, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Minjie Luo
- Division of Genomic Diagnostics, Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Ian D Krantz
- Roberts Individualized Medical Genetics Center (RIMGC), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Division of Human Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Tiffiney R Hartman
- Roberts Individualized Medical Genetics Center (RIMGC), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Division of Human Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Translational Medicine and Human Genetics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Nikookam Y, Zia N, Lotfallah A, Muzaffar J, Davis-Manders J, Kullar P, Smith M, Bale G, Boyle P, Irving R, Jiang D, Bance M. The effect of photobiomodulation on hearing loss: A systematic review. Clin Otolaryngol 2024; 49:41-61. [PMID: 37885344 DOI: 10.1111/coa.14113] [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: 05/31/2023] [Revised: 09/16/2023] [Accepted: 10/07/2023] [Indexed: 10/28/2023]
Abstract
OBJECTIVES To assess outcomes associated with photobiomodulation therapy (PBMT) for hearing loss in human and animal studies. DESIGN Systematic review and narrative synthesis in accordance with PRISMA guidelines. SETTING Data bases searched: MEDLINE, EMBASE, CENTRAL, ClinicalTrials.gov and Web of Science. No limits were placed on language or year of publication. Review conducted in accordance with the PRISMA 2020 statement. PARTICIPANTS All human and animal subjects treated with PBMT for hearing loss. MAIN OUTCOME MEASURES Pre- and post-PBMT audio metric outcomes. RESULTS Searches identified 122 abstracts and 49 full text articles. Of these, 17 studies met the inclusion criteria, reporting outcomes in 327 animals (11 studies), 30 humans (1 study), and 40 animal specimens (5 studies). PBMT parameters included 6 different wavelengths: 908 nm (1 study), 810 nm (1 study), 532 & 635 nm (1 study), 830 nm (3 studies), 808 nm (11 studies). The duration ranged from 4 to 60 minutes in a session, and the follow-up ranged from 5-28 days. Outcomes improved significantly when wavelengths within the range of 800-830 nm were used, and with greater duration of PBMT exposure. Included studies predominantly consisted of non-randomized controlled trials (10 studies). CONCLUSIONS Hearing outcomes following PBMT appear to be superior to no PBMT for subjects with hearing loss, although higher level evidence is required to verify this. PBMT enables concentrated, focused delivery of light therapy to the inner ear through a non-invasive manner with minimal side effects. As a result of heterogeneity in reporting PBMT parameters and outcomes across the included studies, direct comparison is challenging.
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Affiliation(s)
- Yasmin Nikookam
- University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital Birmingham, Birmingham, UK
| | - Nawal Zia
- University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital Birmingham, Birmingham, UK
| | - Andrew Lotfallah
- University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital Birmingham, Birmingham, UK
| | - Jameel Muzaffar
- University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital Birmingham, Birmingham, UK
- University of Cambridge, Department of Clinical Neurosciences, Addenbrooke's Health Campus, Cambridge, UK
| | - Jennifer Davis-Manders
- University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital Birmingham, Birmingham, UK
| | - Peter Kullar
- University of Cambridge, Department of Clinical Neurosciences, Addenbrooke's Health Campus, Cambridge, UK
| | - Matthew Smith
- University of Cambridge, Department of Clinical Neurosciences, Addenbrooke's Health Campus, Cambridge, UK
| | - Gemma Bale
- Department of Physics, Cavendish Laboratory, Cambridge, UK
- Electrical Engineering, Cambridge, UK
| | | | - Richard Irving
- University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital Birmingham, Birmingham, UK
| | - Dan Jiang
- Guy's and St Thomas' NHS Foundation Trust, Hearing Implant Centre, St. Thomas' Hospital, London, UK
- King's College London, Centre for Craniofacial and Regenerative Biology, London, UK
| | - Manohar Bance
- University of Cambridge, Department of Clinical Neurosciences, Addenbrooke's Health Campus, Cambridge, UK
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4
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Li W, Guo L, Chen B, Shu Y, Li H. MPZL2 variant analysis with whole exome sequencing in a cohort of Chinese hearing loss patients. Int J Pediatr Otorhinolaryngol 2023; 171:111635. [PMID: 37390746 DOI: 10.1016/j.ijporl.2023.111635] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 05/31/2023] [Accepted: 06/11/2023] [Indexed: 07/02/2023]
Abstract
BACKGROUND Hearing loss is a genetically heterogeneous disease with more than 100 genes identified. Pathogenic variants in the MPZL2 gene cause autosomal recessive non-syndromic hearing loss. MPZL2 patients showed mild to moderate progressive hearing loss with onset age around 10 years old. To date, four pathogenic variants have been identified. AIMS To explore the clinical characteristics and variants of MPZL2-related hearing loss, and summarize the prevalence rate in overall hearing loss patients. MATERIAL AND METHODS To determine the prevalence of MPZL2-related hearing loss in the Chinese population, we analyzed MPZL2 variants of whole exome sequencing data derived from a cohort of 385 hearing loss patients. RESULTS Overall, homozygous MPZL2 variants were identified in 5 sporadic cases (diagnostic rate = 1.30%). A novel missense variant c.52C > T;p.Leu18Phe was identified in one other patient with compound heterozygous mutations in MPZL2, but the pathogenicity was uncertain according to the American College of Medical Genetics guidelines (2015). A patient homozygous for the c.220C > T,p.Gln74Ter variant showed congenital profound hearing loss at all frequencies, a phenotype different from previous reports. CONCLUSIONS Our results enriched the mutation and phenotype spectrum of MPZL2-related hearing loss. Comparisons between allele frequencies of MPZL2:c.220C > T;p.Gln74Ter and other common deafness variants suggested that MPZL2:c.220C > T;p.Gln74Ter should be included in the group of common deafness variants for prescreening.
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Affiliation(s)
- Weitao Li
- ENT institute and Department of Otorhinolaryngology, Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200031, PR China; NHC Key Laboratory of Hearing Medicine (Fudan University), Shanghai, 200031, PR China
| | - Luo Guo
- ENT institute and Department of Otorhinolaryngology, Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200031, PR China; NHC Key Laboratory of Hearing Medicine (Fudan University), Shanghai, 200031, PR China.
| | - Bing Chen
- ENT institute and Department of Otorhinolaryngology, Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200031, PR China; Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, PR China; NHC Key Laboratory of Hearing Medicine (Fudan University), Shanghai, 200031, PR China.
| | - Yilai Shu
- ENT institute and Department of Otorhinolaryngology, Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200031, PR China; Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, PR China; NHC Key Laboratory of Hearing Medicine (Fudan University), Shanghai, 200031, PR China.
| | - Huawei Li
- ENT institute and Department of Otorhinolaryngology, Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200031, PR China; Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, PR China; NHC Key Laboratory of Hearing Medicine (Fudan University), Shanghai, 200031, PR China; The Institutes of Brain Science and the Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, 200032, PR China.
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5
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Moravej FG, Amini A, Masteri Farahani R, Mohammadi-Yeganeh S, Mostafavinia A, Ahmadi H, Omidi H, Rezaei F, Gachkar L, Hamblin MR, Chien S, Bayat M. Photobiomodulation, alone or combined with adipose-derived stem cells, reduces inflammation by modulation of microRNA-146a and interleukin-1ß in a delayed-healing infected wound in diabetic rats. Lasers Med Sci 2023; 38:129. [PMID: 37243832 DOI: 10.1007/s10103-023-03786-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 05/12/2023] [Indexed: 05/29/2023]
Abstract
Diabetic wounds are categorized by chronic inflammation, leading to the development of diabetic foot ulcers, which cause amputation and death. Herewith, we examined the effect of photobiomodulation (PBM) plus allogeneic diabetic adipose tissue-derived stem cells (ad-ADS) on stereological parameters and expression levels of interleukin (IL)-1ß and microRNA (miRNA)-146a in the inflammatory (day 4) and proliferation (day 8) stages of wound healing in an ischemic infected (with 2×107 colony-forming units of methicillin-resistant Staphylococcus aureus) delayed healing wound model (IIDHWM) in type I diabetic (TIDM) rats. There were five groups of rats: group 1 control (C); group 2 (CELL) in which rat wounds received 1×106 ad-ADS; group 3 (CL) in which rat wounds received the ad-ADS and were subsequently exposed to PBM(890 nm, 80 Hz, 3.5 J/cm2, in vivo); group 4 (CP) in which the ad-ADS preconditioned by the PBM(630 nm + 810 nm, 0.05 W, 1.2 J/cm2, 3 times) were implanted into rat wounds; group 5 (CLP) in which the PBM preconditioned ad-ADS were implanted into rat wounds, which were then exposed to PBM. On both days, significantly better histological results were seen in all experimental groups except control. Significantly better histological results were observed in the ad-ADS plus PBM treatment correlated to the ad-ADS alone group (p<0.05). Overall, PBM preconditioned ad-ADS followed by PBM of the wound showed the most significant improvement in histological measures correlated to the other experimental groups (p<0.05). On days 4 and 8, IL-1 β levels of all experimental groups were lower than the control group; however, on day 8, only the CLP group was different (p<0.01). On day 4, miR-146a expression levels were substantially greater in the CLP and CELL groups correlated to the other groups, on day 8 miR-146a in all treatment groups was upper than C (p<0.01). ad-ADS plus PBM, ad-ADS, and PBM all improved the inflammatory phase of wound healing in an IIDHWM in TIDM1 rats by reducing inflammatory cells (neutrophils, macrophages) and IL-1ß, and increasing miRNA-146a. The ad-ADS+PBM combination was better than either ad-ADS or PBM alone, because of the higher proliferative and anti-inflammatory effects of the PBM+ad-ADS regimen.
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Affiliation(s)
- Fahimeh Ghasemi Moravej
- Department of Biology and Anatomical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abdollah Amini
- Department of Biology and Anatomical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Reza Masteri Farahani
- Department of Biology and Anatomical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Samira Mohammadi-Yeganeh
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atarodalsadat Mostafavinia
- Department of Anatomical Sciences & Cognitive Neuroscience, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Houssein Ahmadi
- Department of Biology and Anatomical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamidreza Omidi
- Department of Biology and Anatomical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemehalsadat Rezaei
- College of Pharmacy, University of Kentucky, 789 South Limestone, Lexington, KY, 40536, USA
| | - Latif Gachkar
- Infectious Diseases and Tropical Medicine Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, South Africa, and Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Sufan Chien
- Price Institute of Surgical Research, University of Louisville, and Noveratech LLC, Louisville, KY, USA
| | - Mohammad Bayat
- Department of Biology and Anatomical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Price Institute of Surgical Research, University of Louisville, and Noveratech LLC, Louisville, KY, USA.
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6
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Abstract
Low-level laser therapy (LLLT) has become an important part of the therapeutic process in various diseases. However, despite the broad use of LLLT in everyday clinical practice, the full impact of LLLT on cell life processes has not been fully understood. This paper presents the current state of knowledge concerning the mechanisms of action of LLLT on cells. A better understanding of the molecular processes occurring within the cell after laser irradiation may result in introducing numerous novel clinical applications of LLLT and potentially increases the safety profile of this therapy.
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7
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Wang X, Han Y, Chen F, Wang M, Xiao Y, Wang H, Xu L, Liu W. Glutathione Peroxidase 1 Protects Against Peroxynitrite-Induced Spiral Ganglion Neuron Damage Through Attenuating NF-κB Pathway Activation. Front Cell Neurosci 2022; 16:841731. [PMID: 35401119 PMCID: PMC8983938 DOI: 10.3389/fncel.2022.841731] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/22/2022] [Indexed: 11/13/2022] Open
Abstract
Glutathione peroxidase 1 (GPX1) is a crucial antioxidant enzyme that prevented the harmful accumulation of intra-cellular hydrogen peroxide. GPX1 might contribute in limiting cochlear damages associated with aging or acoustic overexposure, but the function of GPX1 in the inner ear remains unclear. The present study was designed to investigate the effect of GPX1 on cochlear spiral ganglion neurons (SGNs) against oxidative stress induced by peroxynitrite, a versatile oxidant generated by the reaction of superoxide anion and nitric oxide. Here, we first found that the expression of GPX1 in cultured SGNs was downregulated after peroxynitrite exposure. Then, the GPX1 mimic ebselen and the gpx1 knockout (gpx1–/–) mice were used to investigate the role of GPX1 in SGNs treated with peroxynitrite. The pretreatment with ebselen significantly increased the survived SGN numbers, inhibited the apoptosis, and enhanced the expression of 4-HNE in the cultured SGNs of peroxynitrite + ebselen group compared with the peroxynitrite-only group. On the contrary, remarkably less survived SGNs, more apoptotic SGNs, and the higher expression level of 4-HNE were detected in the peroxynitrite + gpx1–/– group compared with the peroxynitrite-only group. Furthermore, rescue experiments with antioxidant N-acetylcysteine (NAC) showed that the expression of 4-HNE and the apoptosis in SGNs were significantly decreased, while the number of surviving SGNs was increased in peroxynitrite + NAC group compared the peroxynitrite-only group and in peroxynitrite + gpx1–/– + NAC group vs. peroxynitrite + gpx1–/– group. Finally, mechanistic studies showed that the activation of nuclear factor-kappa B (NF-κB) was involved in the SGNs damage caused by peroxynitrite and that GPX1 protected SGNs against peroxynitrite-induced damage, at least in part, via blocking the NF-κB pathway activation. Collectively, our findings suggest that GPX1 might serve as a new target for the prevention of nitrogen radical-induced SGNs damage and hearing loss.
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Affiliation(s)
- Xue Wang
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Institute of Otorhinolaryngology, Jinan, China
| | - Yuechen Han
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Institute of Otorhinolaryngology, Jinan, China
| | - Fang Chen
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Institute of Otorhinolaryngology, Jinan, China
| | - Man Wang
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Institute of Otorhinolaryngology, Jinan, China
| | - Yun Xiao
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Institute of Otorhinolaryngology, Jinan, China
| | - Haibo Wang
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Institute of Otorhinolaryngology, Jinan, China
| | - Lei Xu
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Institute of Otorhinolaryngology, Jinan, China
| | - Wenwen Liu
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Institute of Otorhinolaryngology, Jinan, China
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8
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Cochlear hair cells of echolocating bats are immune to intense noise. J Genet Genomics 2021; 48:984-993. [PMID: 34393089 DOI: 10.1016/j.jgg.2021.06.007] [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: 01/08/2021] [Revised: 05/15/2021] [Accepted: 06/06/2021] [Indexed: 11/23/2022]
Abstract
Exposure to intense noise can damage cochlear hair cells, leading to hearing loss in mammals. To avoid this constraint, most mammals have evolved in relatively quiet environments. Echolocating bats, however, are naturally exposed to continuous intense sounds from their own and neighboring sonar emissions for maintaining sonar directionality and range. Here, we propose the presence of intense noise resistance in cochlear hair cells of echolocating bats against noise-induced hearing loss (NIHL). To test this hypothesis, we performed noise exposure experiments for laboratory mice, one nonecholocating bat species, and five echolocating bat species. Contrary to nonecholocating fruit bats and mice, the hearing and the cochlear hair cells of echolocating bats remained unimpaired after continuous intense noise exposure. The comparative analyses of cochleae transcriptomic data showed that several genes protecting cochlear hair cells from intense sounds were overexpressed in echolocating bats. Particularly, the experimental examinations revealed that ISL1 overexpression significantly improved the survival of cochlear hair cells. Our findings support the existence of protective effects in cochlear hair cells of echolocating bats against intense noises, which provides new insight into understanding the relationship between cochlear hair cells and intense noises, and preventing or ameliorating NIHL in mammals.
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9
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Basta D, Gröschel M, Strübing I, Boyle P, Fröhlich F, Ernst A, Seidl R. Near-infrared-light pre-treatment attenuates noise-induced hearing loss in mice. PeerJ 2020; 8:e9384. [PMID: 32596055 PMCID: PMC7305775 DOI: 10.7717/peerj.9384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 05/28/2020] [Indexed: 12/02/2022] Open
Abstract
Noise induced hearing loss (NIHL) is accompanied by a reduction of cochlear hair cells and spiral ganglion neurons. Different approaches have been applied to prevent noise induced apoptosis / necrosis. Physical intervention is one technique currently under investigation. Specific wavelengths within the near-infrared light (NIR)-spectrum are known to influence cytochrome-c-oxidase activity, which leads in turn to a decrease in apoptotic mechanisms. It has been shown recently that NIR can significantly decrease the cochlear hair cell loss if applied daily for 12 days after a noise exposure. However, it is still unclear if a single NIR-treatment, just before a noise exposure, could induce similar protective effects. Therefore, the present study was conducted to investigate the effect of a single NIR-pre-treatment aimed at preventing or limiting NIHL. The cochleae of adult NMRI-mice were pre-treated with NIR-light (808 nm, 120 mW) for 5, 10, 20, 30 or 40 minutes via the external ear canal. All animals were noised exposed immediately after the pre-treatment by broad band noise (5–20 kHz) for 30 minutes at 115 dB SPL. Frequency specific ABR-recordings to determine auditory threshold shift were carried out before the pre-treatment and two weeks after the noise exposure. The amplitude increase for wave IV and cochlear hair cell loss were determined. A further group of similar mice was noise exposed only and served as a control for the NIR pre-exposed groups. Two weeks after noise exposure, the ABR threshold shifts of NIR-treated animals were significantly lower (p < 0.05) than those of the control animals. The significance was at three frequencies for the 5-minute pre-treatment group and across the entire frequency range for all other treatment groups. Due to NIR light, the amplitude of wave four deteriorates significantly less after noise exposure than in controls. The NIR pre-treatment had no effect on the loss of outer hair cells, which was just as high with or without NIR-light pre-exposure. Relative to the entire number of outer hair cells across the whole cochlea, outer hair cell loss was rather negligible. No inner hair cell loss whatever was detected. Our results suggest that a single NIR pre-treatment induces a very effective protection of cochlear structures from noise exposure. Pre-exposure of 10 min seems to emerge as the optimal dosage for our experimental setup. A saturated effect occurred with higher dosage-treatments. These results are relevant for protection of residual hearing in otoneurosurgery such as cochlear implantation.
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Affiliation(s)
- Dietmar Basta
- Department of ENT at ukb, Charité Medical School, University of Berlin, Berlin, Germany
| | - Moritz Gröschel
- Department of ENT at ukb, Charité Medical School, University of Berlin, Berlin, Germany
| | - Ira Strübing
- Department of ENT at ukb, Charité Medical School, University of Berlin, Berlin, Germany
| | | | - Felix Fröhlich
- Department of ENT at ukb, Charité Medical School, University of Berlin, Berlin, Germany
| | - Arne Ernst
- Department of ENT at ukb, Charité Medical School, University of Berlin, Berlin, Germany
| | - Rainer Seidl
- Department of ENT at ukb, Charité Medical School, University of Berlin, Berlin, Germany
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10
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Enhanced mitochondrial membrane potential and ATP synthesis by photobiomodulation increases viability of the auditory cell line after gentamicin-induced intrinsic apoptosis. Sci Rep 2019; 9:19248. [PMID: 31848399 PMCID: PMC6917700 DOI: 10.1038/s41598-019-55711-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 11/29/2019] [Indexed: 11/09/2022] Open
Abstract
Photobiomodulation (PBM) has been suggested to have a therapeutic effect on irreversible hearing loss induced by aminoglycosides, including gentamicin (GM). However, its intracellular mechanism(s) in GM-induced ototoxicity remain poorly understood. In the present study, we investigated the effect of PBM in GM-induced ototoxicity in auditory cells. We tried to characterize the downstream process by PBM, and the process that triggered the increased cell viability of auditory cells. As a result, the effects of PBM against GM-induced ototoxicity by increasing ATP levels and mitochondrial membrane potential was confirmed. These results suggest a theory to explain the therapeutic effects and support the use of PBM for aminoglycoside-induced hearing loss.
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11
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Applications of photobiomodulation in hearing research: from bench to clinic. Biomed Eng Lett 2019; 9:351-358. [PMID: 31456894 DOI: 10.1007/s13534-019-00114-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 04/28/2019] [Accepted: 06/04/2019] [Indexed: 02/06/2023] Open
Abstract
Hearing loss is very common and economically burdensome. No accepted therapeutic modality for sensorineural hearing loss is yet available; most clinicians emphasize rehabilitation, placing hearing aids and cochlear implants. Photobiomodulation (PBM) employs light energy to enhance or modulate the activities of specific organs, and is a popular non-invasive therapy used to treat skin lesions and neurodegenerative disorders. Efforts to use PBM to improve hearing have been ongoing for several decades. Initial in vitro studies using cell lines and ex vivo culture techniques have now been supplanted by in vivo studies in animals; PBM protects the sensory epithelium and triggers neural regeneration. Many reports have used PBM to treat tinnitus. In this brief review, we introduce PBM applications in hearing research, helpful protocols, and relevant background literature.
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Abstract
Sensorineural hearing impairment is the most common sensory disorder and a major health and socio-economic issue in industrialized countries. It is primarily due to the degeneration of mechanosensory hair cells and spiral ganglion neurons in the cochlea via complex pathophysiological mechanisms. These occur following acute and/or chronic exposure to harmful extrinsic (e.g., ototoxic drugs, noise...) and intrinsic (e.g., aging, genetic) causative factors. No clinical therapies currently exist to rescue the dying sensorineural cells or regenerate these cells once lost. Recent studies have, however, provided renewed hope, with insights into the therapeutic targets allowing the prevention and treatment of ototoxic drug- and noise-induced, age-related hearing loss as well as cochlear cell degeneration. Moreover, genetic routes involving the replacement or corrective editing of mutant sequences or defected genes are showing promise, as are cell-replacement therapies to repair damaged cells for the future restoration of hearing in deaf people. This review begins by recapitulating our current understanding of the molecular pathways that underlie cochlear sensorineural damage, as well as the survival signaling pathways that can provide endogenous protection and tissue rescue. It then guides the reader through to the recent discoveries in pharmacological, gene and cell therapy research towards hearing protection and restoration as well as their potential clinical application.
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Affiliation(s)
- Jing Wang
- INSERM UMR 1051, Institute for Neurosciences of Montpellier, Montpellier, France; and University of Montpellier, Montpellier, France
| | - Jean-Luc Puel
- INSERM UMR 1051, Institute for Neurosciences of Montpellier, Montpellier, France; and University of Montpellier, Montpellier, France
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13
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Sergio LPDS, Thomé AMC, Trajano LADSN, Mencalha AL, da Fonseca ADS, de Paoli F. Photobiomodulation prevents DNA fragmentation of alveolar epithelial cells and alters the mRNA levels of caspase 3 and Bcl-2 genes in acute lung injury. Photochem Photobiol Sci 2018; 17:975-983. [PMID: 29922788 DOI: 10.1039/c8pp00109j] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Acute respiratory distress syndrome (ARDS) and acute lung injury (ALI) are defined as pulmonary inflammation that could occur from sepsis and lead to pulmonary permeability and alveolar edema making them life-threatening diseases. Photobiomodulation (PBM) properties have been widely described in the literature in several inflammatory diseases; although the mechanisms of action are not always clear, this could be a possible treatment for ARDS/ALI. Thus, the aim of this study was to evaluate the mRNA levels from caspase-3 and BCL-2 genes and DNA fragmentation in lung tissue from Wistar rats affected by ALI and subjected to photobiomodulation by exposure to a low power infrared laser (808 nm; 100 mW; 3.571 W cm-2; four points per lung). Adult male Wistar rats were randomized into 6 groups (n = 5, for each group): control, PBM10 (10 J cm-2, 2 J and 2 seconds), PBM20 (20 J cm-2, 5 J and 5 seconds), ALI, ALI + PBM10 and ALI + PBM20. ALI was induced by intraperitoneal Escherichia coli lipopolysaccharide injection. Lung samples were collected and divided for mRNA expression of caspase-3 and Bcl-2 and DNA fragmentation quantifications. Data show that caspase-3 mRNA levels are reduced and Bcl-2 mRNA levels increased in ALI after low power infrared laser exposure when compared to the non-exposed ALI group. DNA fragmentation increased in inflammatory infiltrate cells and reduced in alveolar cells. Our research shows that photobiomodulation can alter relative mRNA levels in genes involved in the apoptotic process and DNA fragmentation in inflammatory and alveolar cells after lipopolysaccharide-induced acute lung injury. Also, inflammatory cell apoptosis is part of the photobiomodulation effects induced by exposure to a low power infrared laser.
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Affiliation(s)
- Luiz Philippe da Silva Sergio
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Avenida 28 de Setembro, 87, fundos, Vila Isabel, Rio de Janeiro, 20551030, Brazil.
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14
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Wesdorp M, Murillo-Cuesta S, Peters T, Celaya AM, Oonk A, Schraders M, Oostrik J, Gomez-Rosas E, Beynon AJ, Hartel BP, Okkersen K, Koenen HJPM, Weeda J, Lelieveld S, Voermans NC, Joosten I, Hoyng CB, Lichtner P, Kunst HPM, Feenstra I, de Bruijn SE, Admiraal RJC, Yntema HG, van Wijk E, Del Castillo I, Serra P, Varela-Nieto I, Pennings RJE, Kremer H. MPZL2, Encoding the Epithelial Junctional Protein Myelin Protein Zero-like 2, Is Essential for Hearing in Man and Mouse. Am J Hum Genet 2018; 103:74-88. [PMID: 29961571 DOI: 10.1016/j.ajhg.2018.05.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 05/25/2018] [Indexed: 02/01/2023] Open
Abstract
In a Dutch consanguineous family with recessively inherited nonsyndromic hearing impairment (HI), homozygosity mapping combined with whole-exome sequencing revealed a MPZL2 homozygous truncating variant, c.72del (p.Ile24Metfs∗22). By screening a cohort of phenotype-matched subjects and a cohort of HI subjects in whom WES had been performed previously, we identified two additional families with biallelic truncating variants of MPZL2. Affected individuals demonstrated symmetric, progressive, mild to moderate sensorineural HI. Onset of HI was in the first decade, and high-frequency hearing was more severely affected. There was no vestibular involvement. MPZL2 encodes myelin protein zero-like 2, an adhesion molecule that mediates epithelial cell-cell interactions in several (developing) tissues. Involvement of MPZL2 in hearing was confirmed by audiometric evaluation of Mpzl2-mutant mice. These displayed early-onset progressive sensorineural HI that was more pronounced in the high frequencies. Histological analysis of adult mutant mice demonstrated an altered organization of outer hair cells and supporting cells and degeneration of the organ of Corti. In addition, we observed mild degeneration of spiral ganglion neurons, and this degeneration was most pronounced at the cochlear base. Although MPZL2 is known to function in cell adhesion in several tissues, no phenotypes other than HI were found to be associated with MPZL2 defects. This indicates that MPZL2 has a unique function in the inner ear. The present study suggests that deleterious variants of Mplz2/MPZL2 affect adhesion of the inner-ear epithelium and result in loss of structural integrity of the organ of Corti and progressive degeneration of hair cells, supporting cells, and spiral ganglion neurons.
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Affiliation(s)
- Mieke Wesdorp
- Hearing and Genes Division, Department of Otorhinolaryngology, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; The Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Silvia Murillo-Cuesta
- Institute of Biomedical Research "Alberto Sols," Spanish National Research Council-Autonomous University of Madrid, 28029 Madrid, Spain; Center for Biomedical Network Research in Rare Diseases, Institute of Health Carlos III, 28029 Madrid, Spain; Hospital La Paz Institute for Health Research, 28029 Madrid, Spain
| | - Theo Peters
- Hearing and Genes Division, Department of Otorhinolaryngology, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Adelaida M Celaya
- Institute of Biomedical Research "Alberto Sols," Spanish National Research Council-Autonomous University of Madrid, 28029 Madrid, Spain; Center for Biomedical Network Research in Rare Diseases, Institute of Health Carlos III, 28029 Madrid, Spain
| | - Anne Oonk
- Hearing and Genes Division, Department of Otorhinolaryngology, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Margit Schraders
- Hearing and Genes Division, Department of Otorhinolaryngology, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Jaap Oostrik
- Hearing and Genes Division, Department of Otorhinolaryngology, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Elena Gomez-Rosas
- Center for Biomedical Network Research in Rare Diseases, Institute of Health Carlos III, 28029 Madrid, Spain; Servicio de Genetica, Hospital Universitario Ramon y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria, Madrid, Spain
| | - Andy J Beynon
- Hearing and Genes Division, Department of Otorhinolaryngology, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Bas P Hartel
- Hearing and Genes Division, Department of Otorhinolaryngology, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Kees Okkersen
- Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Department of Neurology, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Hans J P M Koenen
- Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Jack Weeda
- Department of Ophthalmology, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Stefan Lelieveld
- The Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Department of Human Genetics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Nicol C Voermans
- Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Department of Neurology, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Irma Joosten
- Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Carel B Hoyng
- Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Department of Ophthalmology, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Peter Lichtner
- Institute of Human Genetics, Helmholtz Zentrum München, Neuherberg, Germany
| | - Henricus P M Kunst
- Hearing and Genes Division, Department of Otorhinolaryngology, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Radboud Institute of Health Sciences, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Ilse Feenstra
- Department of Human Genetics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Suzanne E de Bruijn
- Department of Human Genetics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Ronald J C Admiraal
- Hearing and Genes Division, Department of Otorhinolaryngology, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Helger G Yntema
- Department of Human Genetics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Erwin van Wijk
- Hearing and Genes Division, Department of Otorhinolaryngology, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Ignacio Del Castillo
- Center for Biomedical Network Research in Rare Diseases, Institute of Health Carlos III, 28029 Madrid, Spain; Servicio de Genetica, Hospital Universitario Ramon y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria, Madrid, Spain
| | - Pau Serra
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Isabel Varela-Nieto
- Institute of Biomedical Research "Alberto Sols," Spanish National Research Council-Autonomous University of Madrid, 28029 Madrid, Spain; Center for Biomedical Network Research in Rare Diseases, Institute of Health Carlos III, 28029 Madrid, Spain; Hospital La Paz Institute for Health Research, 28029 Madrid, Spain
| | - Ronald J E Pennings
- Hearing and Genes Division, Department of Otorhinolaryngology, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Hannie Kremer
- Hearing and Genes Division, Department of Otorhinolaryngology, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Department of Human Genetics, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands.
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