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Pham TB, Boussaty EC, Currais A, Maher P, Schubert DR, Manor U, Friedman RA. Attenuation of Age-Related Hearing Impairment in Senescence-Accelerated Mouse Prone 8 (SAMP8) Mice Treated with Fatty Acid Synthase Inhibitor CMS121. J Mol Neurosci 2023; 73:307-315. [PMID: 37097512 PMCID: PMC10200781 DOI: 10.1007/s12031-023-02119-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 04/17/2023] [Indexed: 04/26/2023]
Abstract
In the senescence-accelerated mouse prone 8 (SAMP8) mouse model, oxidative stress leads to premature senescence and age-related hearing impairment (ARHI). CMS121 inhibits oxytosis/ferroptosis by targeting fatty acid synthase. The aim of our study was to determine whether CMS121 is protective against ARHI in SAMP8 mice. Auditory brainstem responses (ABRs) were used to assess baseline hearing in sixteen 4-week-old female SAMP8 mice, which were divided into two cohorts. The control group was fed a vehicle diet, while the experimental group was fed a diet containing CMS121. ABRs were measured until 13 weeks of age. Cochlear immunohistochemistry was performed to analyze the number of paired ribbon-receptor synapses per inner hair cell (IHC). Descriptive statistics are provided with mean ± SEM. Two-sample t-tests were performed to compare hearing thresholds and paired synapse count across the two groups, with alpha = 0.05. Baseline hearing thresholds in the control group were statistically similar to those of the CMS121 group. At 13 weeks of age, the control group had significantly worse hearing thresholds at 12 kHz (56.5 vs. 39.8, p = 0.044) and 16 kHz (64.8 vs. 43.8, p = 0.040) compared to the CMS121 group. Immunohistochemistry showed a significantly lower synapse count per IHC in the control group (15.7) compared to the CMS121 group (18.4), p = 0.014. Our study shows a significant reduction in ABR threshold shifts and increased preservation of IHC ribbon synapses in the mid-range frequencies among mice treated with CMS121 compared to untreated mice.
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Affiliation(s)
- Tammy B Pham
- Department of Otolaryngology-Head and Neck Surgery, University of California San Diego Health, 92037, La Jolla, CA, USA
| | - Ely Cheikh Boussaty
- Department of Otolaryngology-Head and Neck Surgery, University of California San Diego Health, 92037, La Jolla, CA, USA
| | - Antonio Currais
- Cellular Neurobiology Laboratory, Salk Institute for Biological Studies, 92037, La Jolla, CA, USA
| | - Pamela Maher
- Cellular Neurobiology Laboratory, Salk Institute for Biological Studies, 92037, La Jolla, CA, USA
| | - David R Schubert
- Cellular Neurobiology Laboratory, Salk Institute for Biological Studies, 92037, La Jolla, CA, USA
| | - Uri Manor
- Waitt Advanced Biophotonics Center, Salk Institute for Biological Studies, 92037, La Jolla, CA, USA
| | - Rick A Friedman
- Department of Otolaryngology-Head and Neck Surgery, University of California San Diego Health, 92037, La Jolla, CA, USA.
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Song W, Cao H, Zhang D, Xu H, Zhang Q, Wang Z, Li S, Wang W, Hu W, Wang B, Duan H. Association between NR3C1 gene polymorphisms and age-related hearing impairment in Qingdao Chinese elderly. BMC Med Genomics 2021; 14:193. [PMID: 34320993 PMCID: PMC8320226 DOI: 10.1186/s12920-021-01044-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 07/22/2021] [Indexed: 11/23/2022] Open
Abstract
Background Age-related hearing impairment (ARHI) has attracted increasing attention recently. It is caused by genetic and environmental factors. A number of ARHI-related genes have been found. This study aimed to detect the potential association between NR3C1 gene polymorphisms and ARHI by means of weighted allele score. Methods A total of 861 participants from Qingdao city were selected by means of cluster random sampling. We statistically evaluated the characteristics of individuals and used the Mann–Whitney U test or chi-square test for comparison. The publicly available expression quantitative trait locus (eQTL) was queried on the website of the Genotype-Tissue Expression (GTEx). We used the weighted allele score and logistic regression analysis to explore the association between NR3C1 gene polymorphisms and ARHI. Finally, the prediction model was constructed by logistic regression and receiver operating characteristic (ROC) curve. Results All individuals over 60 years of age were enrolled in this study. The allele of rs61757411, rs41423247 and rs6877893 were significantly different between the ARHI group and the normal hearing group (P < 0.01). Though eQTL analysis, rs6877893 and rs33388 might affect the occurrence of ARHI by affecting the expression of NR3C1 gene in artery aorta. Then we performed two models: one without adding any covariates into model and the other adjusting for demographic characteristic, smoking and drinking, diet and exercise, and physical conditions. In the multivariate-adjusted model 2, the odds ratio with 95% confidence interval for weighted allele score (NR3C1) was 0.841 (0.710–0.995, P = 0.043). The area under the ROC curve was 0.755, indicating that the model had good predictability. Conclusions Our study suggests that NR3C1 gene polymorphisms was significantly associated with ARHI.
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Affiliation(s)
- Wanxue Song
- Department of Epidemiology and Health Statistics, Public Health College, Qingdao University, No. 38 Dengzhou Road, Shibei District, Qingdao, 266021, Shandong Province, People's Republic of China
| | - Hainan Cao
- Department of Otorhinolaryngology, Qingdao Municipal Hospital, Qingdao, 266011, Shandong Province, People's Republic of China
| | - Dongfeng Zhang
- Department of Epidemiology and Health Statistics, Public Health College, Qingdao University, No. 38 Dengzhou Road, Shibei District, Qingdao, 266021, Shandong Province, People's Republic of China
| | - Haiyan Xu
- Chengyang Street Community Health Service Center, No. 137 Wenyang Road, Chengyang District, Qingdao, 266109, Shandong Province, People's Republic of China
| | - Qianqian Zhang
- Zaozhuang Municipal Center for Disease Control and Prevention, No. 223 Jiefang North Road, Shizhong District, Zaozhuang, 277100, Shandong Province, People's Republic of China
| | - Zhaoguo Wang
- Qingdao Municipal Center for Disease Control and Prevention, No. 175 Shandong Road, Shibei District, Qingdao, 266033, Shandong Province, People's Republic of China.,Qingdao Institute of Preventive Medicine, No. 175 Shandong Road, Shibei District, Qingdao, 266033, Shandong Province, People's Republic of China
| | - Suyun Li
- Department of Epidemiology and Health Statistics, Public Health College, Qingdao University, No. 38 Dengzhou Road, Shibei District, Qingdao, 266021, Shandong Province, People's Republic of China
| | - Weijing Wang
- Department of Epidemiology and Health Statistics, Public Health College, Qingdao University, No. 38 Dengzhou Road, Shibei District, Qingdao, 266021, Shandong Province, People's Republic of China
| | - Wenchao Hu
- Department of Endocrinology, Qilu Hospital of Shandong University (Qingdao), No. 758 Hefei Road, Shibei District, Qingdao, 266033, Shandong Province, People's Republic of China
| | - Bingling Wang
- Qingdao Municipal Center for Disease Control and Prevention, No. 175 Shandong Road, Shibei District, Qingdao, 266033, Shandong Province, People's Republic of China.,Qingdao Institute of Preventive Medicine, No. 175 Shandong Road, Shibei District, Qingdao, 266033, Shandong Province, People's Republic of China
| | - Haiping Duan
- Department of Epidemiology and Health Statistics, Public Health College, Qingdao University, No. 38 Dengzhou Road, Shibei District, Qingdao, 266021, Shandong Province, People's Republic of China. .,Qingdao Municipal Center for Disease Control and Prevention, No. 175 Shandong Road, Shibei District, Qingdao, 266033, Shandong Province, People's Republic of China. .,Qingdao Institute of Preventive Medicine, No. 175 Shandong Road, Shibei District, Qingdao, 266033, Shandong Province, People's Republic of China.
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Chang NC, Yang HL, Dai CY, Lin WY, Hsieh MH, Chien CY, Ho KY. The association of heat shock protein genetic polymorphisms with age-related hearing impairment in Taiwan. J Otolaryngol Head Neck Surg 2021; 50:31. [PMID: 33926545 PMCID: PMC8086325 DOI: 10.1186/s40463-021-00512-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 03/25/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Age-related hearing impairment (ARHI) is a major disability among the elderly population. Heat shock proteins (HSPs) were found to be associated with ARHI in animal studies. The aim of this study was to analyze the associations of single nucleotide polymorphisms (SNPs) of HSP genes with ARHI in an elderly population in Taiwan. METHODS Participants ≥65 years of age were recruited for audiometric tests and genetic analyses. The pure tone average (PTA) of the better hearing ear was calculated for ARHI evaluation. The associations of HSPA1L (rs2075800 and rs2227956), HSPA1A (rs1043618) and HSPA1B (rs2763979) with ARHI were analyzed in 146 ARHI-susceptible (cases) and 146 ARHI-resistant (controls) participants. RESULTS The "T" allele of HSPA1B rs2763979 showed a decreased risk of ARHI. The "TT" genotype of rs2763979 also showed a decreased risk of ARHI in the dominant hereditary model. For HSPA1L (rs2075800 and rs2227956) and HSPA1A (rs1043618), the haplotype "CAG" was related to a decreased risk of ARHI. CONCLUSION These findings suggest that HSP70 polymorphisms are associated with susceptibility to ARHI in the elderly population.
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Affiliation(s)
- Ning-Chia Chang
- Department of Otorhinolaryngology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Otorhinolaryngology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan.,Health Management Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan
| | - Hua-Ling Yang
- Department of Internal Medicine, Division of Hepatobiliary and Pancreatic Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chia-Yen Dai
- Department of Internal Medicine, Division of Hepatobiliary and Pancreatic Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wen-Yi Lin
- Health Management Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan
| | - Meng-Hsuen Hsieh
- Department of Internal Medicine, Division of Hepatobiliary and Pancreatic Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chen-Yu Chien
- Department of Otorhinolaryngology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Department of Otorhinolaryngology, Kaohsiung Medical University Hospital, No. 100, Tzyou 1st Road, Kaohsiung, 807, Taiwan.
| | - Kuen-Yao Ho
- Department of Otorhinolaryngology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Department of Otorhinolaryngology, Kaohsiung Medical University Hospital, No. 100, Tzyou 1st Road, Kaohsiung, 807, Taiwan.
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Uchida Y, Mise K, Suzuki D, Fukunaga Y, Hakuba N, Oishi N, Ogawa T, Takahashi M, Takumi Y, Fujimoto S, Maeda Y, Nishizaki K, Noda T, Komune N, Matsumoto N, Nakagawa T, Nishita Y, Otsuka R, Maegawa A, Kimizuka T, Miyata A, Gonda A, Ishikawa K, Higashino Y, Murakami S. A Multi-Institutional Study of Older Hearing Aids Beginners-A Prospective Single-Arm Observation on Executive Function and Social Interaction. J Am Med Dir Assoc 2021; 22:1168-1174. [PMID: 33811828 DOI: 10.1016/j.jamda.2021.02.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 02/16/2021] [Accepted: 02/21/2021] [Indexed: 01/08/2023]
Abstract
OBJECTIVES To obtain new insights into research questions on how executive function and social interaction would be observed to change after the introduction of hearing aids (HAs) in older people with hearing impairment. DESIGN Multi-institutional prospective single-arm observational study. SETTING AND PARTICIPANTS Outpatients with complaints of hearing difficulty who visited HA clinics between October 18, 2017, and June 30, 2019, in 7 different university hospitals in Japan. METHODS The inclusion criteria of the study named Hearing-Aid Introduction for Hearing-Impaired Seniors to Realize a Productive Aging Society-A Study Focusing on Executive Function and Social Activities Study (HA-ProA study) were age ≥60 years and no history of HA use. A series of multi-institution common evaluations including audiometric measurements, the digit symbol substitution test to assess executive functions, convoy model as an index of social relations, and hearing handicap inventory for the elderly (HHIE) were performed before (pre-HA) and after 6 months of the HA introduction (post-HA). RESULTS Out of 127 enrollments, 94 participants completed a 6-month follow-up, with a mean age of 76.9 years. The digit symbol substitution test score improved significantly from 44.7 at baseline to 46.1 at 6 months (P = .0106). In the convoy model, the social network size indicated by the number of persons in each and whole circles were not significantly different between pre- and post-HA; however, the total count for kin was significantly increased (P = .0344). In the analyses of HHIE, the items regarding the family and relatives showed significant improvement. CONCLUSIONS AND IMPLICATIONS HA use could benefit older individuals beginning to use HAs in executive function and social interaction, though the results should be interpreted cautiously given methodological limitations such as a single-arm short 6 months observation. Reduction in daily hearing impairment would have a favorable effect on relationships with the family.
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Affiliation(s)
- Yasue Uchida
- Department of Otorhinolaryngology, Aichi Medical University, Nagakute, Aichi, Japan; Department of Otorhinolaryngology, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan.
| | - Kazuyo Mise
- Department of Otolaryngology, Teikyo University School of Medicine, Mizonokuchi Hospital, Kawasaki, Kanagawa, Japan
| | - Daiji Suzuki
- Department of Otolaryngology, Teikyo University School of Medicine, Mizonokuchi Hospital, Kawasaki, Kanagawa, Japan
| | - Yoko Fukunaga
- Department of Otolaryngology, Teikyo University School of Medicine, Mizonokuchi Hospital, Kawasaki, Kanagawa, Japan
| | - Nobuhiro Hakuba
- Department of Otolaryngology, Teikyo University School of Medicine, Mizonokuchi Hospital, Kawasaki, Kanagawa, Japan
| | - Naoki Oishi
- Department of Otolaryngology-Head and Neck Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Takaki Ogawa
- Department of Otorhinolaryngology, Aichi Medical University, Nagakute, Aichi, Japan; Department of Otorhinolaryngology, Middle Ear Surgical Center, Meitetsu Hospital, Nagoya, Aichi, Japan
| | - Mariko Takahashi
- Department of Otolaryngology-Head and Neck Surgery, Nagoya City University, Graduate School of Medical Sciences and Medical School; Department of Otorhinolaryngology-Head and Neck Surgery, Aichi Gakuin University School of Dentistry, Nagoya, Aichi, Japan
| | - Yutaka Takumi
- Department of Otorhinolaryngology, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
| | - Shohei Fujimoto
- Department of Otolaryngology-Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yukihide Maeda
- Department of Otolaryngology-Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Kazunori Nishizaki
- Department of Otolaryngology-Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Teppei Noda
- Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Noritaka Komune
- Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Nozomu Matsumoto
- Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takashi Nakagawa
- Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yukiko Nishita
- Department of Epidemiology of Aging, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan
| | - Rei Otsuka
- Section of NILS-LSA, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan
| | - Azusa Maegawa
- Department of Otolaryngology-Head and Neck Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Tomomi Kimizuka
- Department of Otolaryngology-Head and Neck Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Akiko Miyata
- Department of Otorhinolaryngology, Aichi Medical University, Nagakute, Aichi, Japan
| | - Ayako Gonda
- Department of Otorhinolaryngology, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
| | - Kazuha Ishikawa
- Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshie Higashino
- Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shingo Murakami
- Department of Otolaryngology-Head and Neck Surgery, Nagoya City University, Graduate School of Medical Sciences and Medical School; East Medical Center, Nagoya, Aichi, Japan
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Chang NC, Yang HL, Dai CY, Lin WY, Wang HM, Chien CY, Ho KY. The association of genetic polymorphisms in interleukin-1 receptors type 1 and type 2 with age-related hearing impairment in a Taiwanese population: a case control study. J Otolaryngol Head Neck Surg 2020; 49:16. [PMID: 32252823 PMCID: PMC7137511 DOI: 10.1186/s40463-020-00410-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 03/18/2020] [Indexed: 12/16/2022] Open
Abstract
Background Age-related hearing impairment (ARHI) is a major disability among the elder population. Chronic inflammation is an important factor in the development of ARHI. Interleukin-1 (IL-1) plays a key role in inflammation and may be associated with ARHI. The aim of this study is to analyze the associations of single nucleotide polymorphisms (SNPs) of IL-1 receptor genes with ARHI in an elderly population in Taiwan. Method Participants ≥65 years of age were recruited for audiometric tests and genetic analyses. The bilateral pure-tone average (PTA) of high-tone hearing levels was calculated for ARHI evaluation. The associations of SNPs of the IL-1 receptor type 1 gene (IL1R1) (rs3917225 and rs2234650) and type 2 gene (IL1R2) (rs4141134 and rs2071008) with ARHI were analyzed in 182 ARHI-susceptible (case) and 176 ARHI-resistant (control) participants. Results The G allele of IL1R1 rs3917225 showed a decreased risk of ARHI after adjustments for sex, age, and noise exposure. The GG genotype of IL1R1 rs3917225 in all hereditary models and the TT genotype of IL1R2 rs2071008 in the recessive model also showed decreased risks of ARHI after adjustments. Conclusion These findings suggest that IL1R1 and IL1R2 polymorphisms may contribute to the decreased risk of ARHI in the elderly population.
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Affiliation(s)
- Ning-Chia Chang
- Department of Otorhinolaryngology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Otorhinolaryngology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan.,Health Management Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan
| | - Hua-Ling Yang
- Division of Hepatobiliary and Pancreatic Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chia-Yen Dai
- Division of Hepatobiliary and Pancreatic Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Wen-Yi Lin
- Health Management Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan
| | - Hsun-Mo Wang
- Department of Otorhinolaryngology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan
| | - Chen-Yu Chien
- Department of Otorhinolaryngology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Otorhinolaryngology, Kaohsiung Medical University Hospital, No. 100, Tzyou 1st Road, Kaohsiung, 807, Taiwan
| | - Kuen-Yao Ho
- Department of Otorhinolaryngology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Department of Otorhinolaryngology, Kaohsiung Medical University Hospital, No. 100, Tzyou 1st Road, Kaohsiung, 807, Taiwan.
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Lee JH, Bahng J, Kim C, Kim YY. Quantitative criteria for age-related hearing loss using audiometric configuration analysis. Eur Arch Otorhinolaryngol 2020; 277:93-102. [PMID: 31628535 DOI: 10.1007/s00405-019-05689-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/08/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVES To suggest the most adaptable criteria of age-related hearing loss (ARHL) using prevalence matching with population-based data. METHODS We chose 30, 25, 20, and 15 dB as gap ranges of cutoff values of the descending type of hearing loss, between an average of low (500 Hz, 1 kHz) and high (4 kHz, 6 kHz) frequencies. Interaural difference was defined as 10 or 15 dB. Hearing loss was defined over 25 dB. We compared the prevalence results of the cross-matching criteria. We used population-based data from the Korea National Health and Nutrition Examination Survey. We assumed that the prevalence of ARHL ranged from 25 to 35%, and this prevalence will increase gradually with age. RESULTS Among the eight possible criteria, age ≥ 65 years, average of all frequencies > 25 dB at the each sides, gap between low- and high frequencies ≥ 20 dB, and interaural difference ≤ 10 dB were the most suitable criteria to suggest a quantitative definition of ARHL audiometrically. CONCLUSION In the current study, we recommend the new, quantitative ARHL criteria. The suggested criteria for ARHL might be easily accessed by other researchers to demonstrate their own hypotheses.
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Bouzid A, Smeti I, Dhouib L, Roche M, Achour I, Khalfallah A, Gibriel AA, Charfeddine I, Ayadi H, Lachuer J, Ghorbel A, Petit C, Masmoudi S. Down-expression of P2RX2, KCNQ5, ERBB3 and SOCS3 through DNA hypermethylation in elderly women with presbycusis. Biomarkers 2018; 23:347-356. [PMID: 29325454 DOI: 10.1080/1354750x.2018.1427795] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
CONTEXT Presbycusis, an age-related hearing impairment (ARHI), represents the most common sensory disability in adults. Today, the molecular mechanisms underlying presbycusis remain unclear. This is in particular due to the fact that ARHI is a multifactorial complex disorder resulting from several genomic factors interacting with lifelong cumulative effects of: disease, diet, and environment. OBJECTIVE Identification of novel biomarkers for presbycusis. MATERIALS AND METHODS We selectively ascertained 18 elderly unrelated women lacking environmental and metabolic risk factors. Subsequently, we screened for methylation map changes in blood samples of women with presbycusis as compared to controls, using reduced representation bisulfite sequencing. We focused on hypermethylated cytosine bases located in gene promoters and the first two exons. To elucidate the related gene expression changes, we performed transcriptomic study using gene expression microarray. RESULTS Twenty-seven genes, known to be expressed in adult human cochlea, were found in the blood cells to be differentially hypermethylated with significant (p < 0.01) methylation differences (>30%) and down-expressed with fold change >1.2 (FDR <0.05). Functional annotation and qRT-PCR further identified P2RX2, KCNQ5, ERBB3 and SOCS3 to be associated with the progression of ARHI. DISCUSSION AND CONCLUSION Down-expressed genes associated with DNA hypermethylation could be used as biomarkers for understanding complex pathogenic mechanisms underlying presbycusis.
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Affiliation(s)
- Amal Bouzid
- a Laboratoire de Procédés de Criblage Moléculaire et Cellulaire, Centre de Biotechnologie de Sfax , Université de Sfax , Sfax , Tunisie
| | - Ibtihel Smeti
- a Laboratoire de Procédés de Criblage Moléculaire et Cellulaire, Centre de Biotechnologie de Sfax , Université de Sfax , Sfax , Tunisie
| | - Leila Dhouib
- b Service d'O.R.L, C.H.U. H. Bourguiba de Sfax , Sfax , Tunisie
| | - Magali Roche
- c Faculté de Médecine et de Pharmacie de Lyon, ISPBL, ProfileXpert-LCM , Lyon , France
| | - Imen Achour
- b Service d'O.R.L, C.H.U. H. Bourguiba de Sfax , Sfax , Tunisie
| | - Aida Khalfallah
- a Laboratoire de Procédés de Criblage Moléculaire et Cellulaire, Centre de Biotechnologie de Sfax , Université de Sfax , Sfax , Tunisie
| | - Abdullah Ahmed Gibriel
- d Department of Biochemistry and Molecular Biology, Faculty of Pharmacy , The British University in Egypt , Cairo , Egypt
| | | | - Hammadi Ayadi
- a Laboratoire de Procédés de Criblage Moléculaire et Cellulaire, Centre de Biotechnologie de Sfax , Université de Sfax , Sfax , Tunisie
| | - Joel Lachuer
- c Faculté de Médecine et de Pharmacie de Lyon, ISPBL, ProfileXpert-LCM , Lyon , France
| | | | - Christine Petit
- e Unité de Génétique et Physiologie de l'Audition , Institut Pasteur , Paris , France.,f UMRS 1120, Institut National de la Santé et de la Recherche Médicale (INSERM) , Paris , France.,g Collège de France , Paris , France
| | - Saber Masmoudi
- a Laboratoire de Procédés de Criblage Moléculaire et Cellulaire, Centre de Biotechnologie de Sfax , Université de Sfax , Sfax , Tunisie
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Kytövuori L, Hannula S, Mäki-Torkko E, Sorri M, Majamaa K. A nonsynonymous mutation in the WFS1 gene in a Finnish family with age-related hearing impairment. Hear Res 2017; 355:97-101. [PMID: 28974383 DOI: 10.1016/j.heares.2017.09.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 03/12/2017] [Accepted: 09/23/2017] [Indexed: 12/01/2022]
Abstract
Wolfram syndrome (WS) is caused by recessive mutations in the Wolfram syndrome 1 (WFS1) gene. Sensorineural hearing impairment (HI) is a frequent feature in WS and, furthermore, certain mutations in WFS1 cause nonsyndromic dominantly inherited low-frequency sensorineural HI. These two phenotypes are clinically distinct indicating that WFS1 is a reasonable candidate for genetic studies in patients with other phenotypes of HI. Here we have investigated, whether the variation in WFS1 has a pathogenic role in age-related hearing impairment (ARHI). WFS1 gene was investigated in a population sample of 518 Finnish adults born in 1938-1949 and representing variable hearing phenotypes. Identified variants were evaluated with respect to pathogenic potential. A rare mutation predicted to be pathogenic was found in a family with many members with impaired hearing. Twenty members were recruited to a segregation study and a detailed clinical examination. Heterozygous p.Tyr528His variant segregated completely with late-onset HI in which hearing deteriorated first at high frequencies and progressed to mid and low frequencies later in life. We report the first mutation in the WFS1 gene causing late-onset HI with audiogram configurations typical for ARHI. Monogenic forms of ARHI are rare and our results add WFS1 to the short list of such genes.
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Affiliation(s)
- Laura Kytövuori
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland; Research Unit of Clinical Neuroscience, University of Oulu, P.O. Box 5000, FI-90014 Oulu, Finland; Department of Neurology, Oulu University Hospital, P.O. Box 20, FI-90029 Oulu, Finland.
| | - Samuli Hannula
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland; Department of Otorhinolaryngology and Head and Neck Surgery, Oulu University Hospital, P.O. Box 21, FI-90029 Oulu, Finland; PEDEGO Research Unit, University of Oulu, P.O. Box 5000, FI-90014 Oulu, Finland
| | - Elina Mäki-Torkko
- Department of Otorhinolaryngology and Head and Neck Surgery, Oulu University Hospital, P.O. Box 21, FI-90029 Oulu, Finland; Department of Clinical and Experimental Medicine/Technical Audiology, Faculty of Health Sciences, Linköping University, S-581 85 Linköping, Sweden; Department of ENT-Head Neck Surgery, Region Östergötland, Sweden
| | - Martti Sorri
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland; Department of Otorhinolaryngology and Head and Neck Surgery, Oulu University Hospital, P.O. Box 21, FI-90029 Oulu, Finland; PEDEGO Research Unit, University of Oulu, P.O. Box 5000, FI-90014 Oulu, Finland
| | - Kari Majamaa
- Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland; Research Unit of Clinical Neuroscience, University of Oulu, P.O. Box 5000, FI-90014 Oulu, Finland; Department of Neurology, Oulu University Hospital, P.O. Box 20, FI-90029 Oulu, Finland
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Wu CC, Tsai CH, Lu YC, Lin HC, Hwang JH, Lin YH, Yang WS, Chen PJ, Liao WC, Lee YL, Liu TC, Hsu CJ. Contribution of adiponectin and its type 1 receptor to age-related hearing impairment. Neurobiol Aging 2015; 36:2085-93. [PMID: 25911279 DOI: 10.1016/j.neurobiolaging.2015.02.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 02/25/2015] [Accepted: 02/28/2015] [Indexed: 01/29/2023]
Abstract
Age-related hearing impairment (ARHI) is a complex neurodegenerative disorder caused by a combination of environmental and genetic factors. We have reported previously that obesity increases the risk for ARHI, and that plasma levels of adiponectin are associated with ARHI. In the present study, we further explored the role of adiponectin in the pathophysiology of ARHI by investigating the genotypes of ADIPOQ and ADIPOR1, the genes of adiponectin and its type 1 receptor, respectively. A total of 1682 volunteers were enrolled, and their audiological phenotypes were determined according to the z scores converted from their original frequency-specific hearing thresholds. A total of 9 tag-single nucleotide polymorphisms (tagSNPs) in ADIPOQ and 4 tagSNPs in ADIPOR1 were genotyped, and the genotypes were correlated to the audiological phenotypes under the assumption of various inheritance models. Significant associations were identified between certain ADIPOQ tagSNPs and z scores under dominant, codominant, or additive models, whereas no association was identified between ADIPOR1 tagSNPs and z scores. The associations between ADIPOQ tagSNPs and z scores appear to exist only in subjects with specific ADIPOR1 genotypes, indicating an interaction between adiponectin and AdipoR1. Measurement of plasma adiponectin in 736 subjects revealed that ADIPOQ genotypes might exert their effects on hearing levels via modulation of plasma adiponectin levels. Subsequently, we confirmed the expression of AdipoR1 in the inner ear of mice, and demonstrated antiapoptotic effects of adiponectin in cochlear explant cultures. These results provide insights into the physiological function and potential clinical implications of adiponectin against ARHI.
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Affiliation(s)
- Chen-Chi Wu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan; Department of Medical Genetics, National Taiwan University Hospital, Taipei, Taiwan
| | - Ching-Hui Tsai
- Institute of Epidemiology and Preventive Medicine, National Taiwan University College of Public Health, Taipei, Taiwan
| | - Ying-Chang Lu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan
| | - Hsiao-Chun Lin
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan
| | - Juen-Haur Hwang
- Department of Otolaryngology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan; School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Yin-Hung Lin
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Medical Genomics and Proteomics, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Wei-Shiung Yang
- Department of Medical Genetics, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Pei-Jer Chen
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Wei-Chih Liao
- Health Management Center, National Taiwan University Hospital, Taipei, Taiwan
| | - Yungling Leo Lee
- Institute of Epidemiology and Preventive Medicine, National Taiwan University College of Public Health, Taipei, Taiwan; Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan.
| | - Tien-Chen Liu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan.
| | - Chuan-Jen Hsu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan; Department of Otolaryngology, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung, Taiwan.
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