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Rahimi V, Tavanai E, Falahzadeh S, Ranjbar AR, Farahani S. Omega-3 fatty acids and health of auditory and vestibular systems: a comprehensive review. Eur J Nutr 2024:10.1007/s00394-024-03369-z. [PMID: 38693450 DOI: 10.1007/s00394-024-03369-z] [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: 09/05/2023] [Accepted: 03/04/2024] [Indexed: 05/03/2024]
Abstract
PURPOSE The purpose of this study was to comprehensively review animal and human studies that explore the role of omega-3 PUFAs in maintaining the health of the auditory organ across all life stages. METHODS This narrative review involved searching Scopus, PubMed, Google Scholar, and Cochrane Library databases for relevant articles from December 1980 to July 2023. RESULTS some animal and human studies suggest that both deficiency and excessive intake of long-chain omega-3 PUFAs, particularly docosahexaenoic acid (DHA), can lead to auditory neural conduction impairment and reduced hearing acuity from fetal development to old age (presbycusis). These effects are likely to be dependent on the dosage. Some research indicates that an excessive intake of omega-3, rather than a deficiency, can result in nutritional toxicity and hearing impairments. Animal studies highlight the positive impact of omega-3 supplements with high DHA content in addressing hearing damage, but human research on this subject is limited. Furthermore, certain studies propose that omega-3 PUFAs may prevent or delay age-related hearing loss, with high plasma omega-3 concentration, particularly long-chain omega-3 PUFA, linked to reduced hearing loss. Additionally, consuming fish more than twice a week may be associated with a lower risk of hearing loss in adulthood, with these effects potentially influenced by age and gender. However, the majority of studies have been conducted on animals, and clinical trials are scarce. Research on the influence of omega-3 PUFAs on the peripheral and central vestibular systems remains limited. CONCLUSION This article delves into the impact of omega-3 on the auditory-vestibular system, exploring its influence on neurodevelopment, protection, and treatment. It not only highlights specific research gaps but also offers valuable insights for potential future studies.
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Affiliation(s)
- Vida Rahimi
- Department of Audiology, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Tavanai
- Department of Audiology, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
| | - Somayeh Falahzadeh
- Department of Audiology, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
- Department of Audiology, School of Rehabilitation, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ali Reza Ranjbar
- Department of Audiology, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeid Farahani
- Department of Audiology, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran.
- Department of Audiology, Faculty of Rehabilitation Sciences, Tehran University of Medical Sciences, Piche-Shemiran, Enghelab Ave, Tehran, 1148965141, Iran.
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Emami SF. Hearing and Diet (Narrative Review). Indian J Otolaryngol Head Neck Surg 2024; 76:1447-1453. [PMID: 38440452 PMCID: PMC10908656 DOI: 10.1007/s12070-023-04238-7] [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: 08/14/2023] [Accepted: 09/13/2023] [Indexed: 03/06/2024] Open
Abstract
It seems that food factors and the type of nutrition have an effect on the function of the auditory system. Hearing is one of the most important senses for social communication and high cognitive behaviors. Sensorineural hearing loss leaves adverse and permanent consequences in all aspects of personal and social life of affected patients. Hence, this narrative review study was designed to determine the relationship between sensorineural hearing loss and type of diet. Based on the inclusion criteria, the full text of 62 articles published between 2005 and 2023 were extracted from Scopus, Medline [PubMed], Web of Science, and Google Scholar websites and constituted the sources of this research. The results of the studies showed that by limiting the consumption of foods rich in cholesterol, sugar, carbohydrates, and protein, hearing is protected against the factors that cause sensorineural hearing loss. Also, increasing the consumption of vegetables, fruits, omega-3, antioxidants in the form of vitamins A, C, E reduce hearing susceptibility due to noise exposure, presbycusis, ototoxic agents, and etc. Healthy diet includes eating all the nutrients the body needs in a balanced way. Healthy lifestyle factors including continuous physical activity, good sleep quality, quitting smoking, stay away from stressful factors or relaxation, and avoiding exposure to environmental noise. By following healthy eating and lifestyle patterns, the conditions for hearing, physical and mental health are provided.
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Affiliation(s)
- Seyede Faranak Emami
- Department of Audiology, School of Rehabilitation Sciences, Hearing Disorder Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
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Partearroyo T, Samaniego-Vaesken MDL, Rodríguez-Alonso P, Soto-Méndez MJ, Hernández-Ruiz Á, Gil Á, Varela-Moreiras G. Dietary intake, nutritional adequacy and food sources of vitamins involved in the methionine-methylation cycle from Spanish children aged one to <10 years: results from the EsNuPI study. Front Nutr 2023; 10:1248908. [PMID: 38156277 PMCID: PMC10753000 DOI: 10.3389/fnut.2023.1248908] [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: 06/27/2023] [Accepted: 11/20/2023] [Indexed: 12/30/2023] Open
Abstract
Background Methionine-methylation cycle and the derived critical functions during infancy are key regulated by folates, vitamins B12, and B6. At present in Spain, there is an absence of studies that assess the intakes and dietary sources of total folates and B12 by children consuming all types of milks and those regularly consuming adapted milk formulas. Thus, our aim was to evaluate folates intakes alongside with vitamins B6 and B12 while describing their major dietary contributors in Spanish children aged one to <10 years. Methods A total of 1,448 children aged between 1 and 10 years (49.7% girls and 50.3% boys) from the EsNuPI, a prospective cross-sectional study, were allocated into two cohorts: one Spanish Reference Cohort (SRS) of the general population (n = 707), and another including children consuming adapted milks called Adapted Milk Consumers Cohort (AMS) (n = 741) completed two 24 h dietary recalls used to estimate their nutrient intakes and to compare them to the European Food Safety Authority (EFSA) Population Reference Intakes. Results The median intake of vitamin B6 was 1.35 (1.06-1.70) mg/day in the SRS and 1.45 (1.17-1.79) mg/day in the AMS, being significantly higher in the AMS for all age-groups. Prevalence of adequacy for vitamin B6 in the SRS and AMS was 97.7 and 98.7%, respectively. Total folates intakes in the AMS were significantly higher (p ≤ 0.001) in all age groups than in the SRS, independently of age. In addition, the prevalence of adequacy for folates intakes in all groups was more than 60%. Vitamin B12 intake increased with age independently of the type of milk consumed. The prevalence of adequacy for vitamin B12 was highly compliant by all population groups. The major contributors to vitamin B6 were milk and dairy products being significantly higher in AMS than SRS (p ≤ 0.001). The highest contributors to folates intakes were milk and dairy products, cereals, vegetables, and fruits in both groups whereas for vitamin B12 in the SRS sample were milk and dairy products followed by meat and meats products and for adapted milks, were milk and dairy products, followed by eggs, then meat and meats products. Conclusion A satisfactory prevalence of adequacy for vitamins B6, and B12 amongst the Spanish children population was observed, which was not the case for folates, regardless of the dietary group evaluated. Nevertheless, a possible strategy to increase folate intake among the youngest children is to increase the consumption of milk and dairy products within a healthier dietary pattern, as these may contribute significantly to the vitamin needs of the infant population.
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Affiliation(s)
- Teresa Partearroyo
- Grupo USP-CEU de Excelencia "Nutrición Para la Vida (Nutrition for Life)", Departamento de Ciencias Farmacéuticas y de la Salud, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain
| | - María de Lourdes Samaniego-Vaesken
- Grupo USP-CEU de Excelencia "Nutrición Para la Vida (Nutrition for Life)", Departamento de Ciencias Farmacéuticas y de la Salud, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain
| | | | | | | | - Ángel Gil
- Iberoamerican Nutrition Foundation (FINUT), Granada, Spain
- Biomedical Research Center, Institute of Nutrition and Food Technology "José Mataix", University of Granada, Granada, Spain
- Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Department of Biochemistry and Molecular Biology II, University of Granada, Granada, Spain
| | - Gregorio Varela-Moreiras
- Grupo USP-CEU de Excelencia "Nutrición Para la Vida (Nutrition for Life)", Departamento de Ciencias Farmacéuticas y de la Salud, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain
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SLC26A4 Mutation Promotes Cell Apoptosis by Inducing Pendrin Transfer, Reducing Cl- Transport, and Inhibiting PI3K/Akt/mTOR Pathway. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6496799. [PMID: 36072472 PMCID: PMC9444440 DOI: 10.1155/2022/6496799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 08/03/2022] [Indexed: 11/18/2022]
Abstract
Objective. Pendrin is encoded by SLC26A4, which is expressed in the apical membrane of inner ear epithelial cells and drives chloride reabsorption in the apical septum. In the inner ear, pendrin dysfunction and hypofunctional mutations lead to vestibular aqueduct (EVA) enlargement and sensory neural hearing loss. Mutations in SLC26A4 are a common reason of deafness. However, the underlying mechanisms of SLC26A4 mutants in hearing loss remain unknown. Methods. In the present study, pEGFP-N1 carrying wild-type and mutant SLC26A4 (c.85G>A, c.2006A>T, and c.853G>A) were transfected into HEK-293T cells. GFP fluorescence and GFP levels were determined. SLC26A4 mRNA levels were examined by quantitative real-time polymerase chain reaction (qRT-PCR). Then, the expression of chloride intracellular channel 1 (CLIC1) and CLIC2 was measured by Immunofluorescence assay. Intracellular chloride concentration and apoptotic rate were analyzed by flow cytometry. The levels of membrane/cytoplasmic pendrin, apoptosis-associated proteins, and the PI3K/Akt/mTOR pathway members were determined by Western blot. Results. Constructed SLC26A4 mutant 1 (c.85G>A), SLC26A4 mutant 2 (c.2006A>T), and SLC26A4 mutant 3 (c.853G>A). The wild-type and 3 mutations were stably expressed in HEK-293T. SLC26A4 mRNA expression was significantly increased after transfection with wild-type SLC26A4 and mutant SLC26A4 compared with the untransfected vector group (
). Compared with the vector group, the expression levels of membrane pendrin, cytoplasmic pendrin, CLIC1, CLIC2, Bcl-2, p-PI3K, p-Akt, and p-mTOR were upregulated. Compared with the vector group, the chloride concentration, cell apoptotic rate, and the expression levels of caspase-3, caspase-9, and Bax were downregulated. Compared with the vector group, the above effects of SLC26A4 were reversed after the SLC26A4 mutant. Conclusion. After SLC26A4 mutation, pendrin was transferred from the membrane, the chloride intracellular channel function was reduced, and the excessive accumulation of chloride in the cytoplasm induced cell apoptosis by inhibited PI3K/Akt/mTOR pathway phosphorylation.
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Boullaud L, Blasco H, Caillaud E, Emond P, Bakhos D. Immediate-Early Modifications to the Metabolomic Profile of the Perilymph Following an Acoustic Trauma in a Sheep Model. J Clin Med 2022; 11:jcm11164668. [PMID: 36012907 PMCID: PMC9409969 DOI: 10.3390/jcm11164668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/02/2022] [Accepted: 08/08/2022] [Indexed: 11/16/2022] Open
Abstract
The pathophysiological mechanisms of noise-induced hearing loss remain unknown. Identifying biomarkers of noise-induced hearing loss may increase the understanding of pathophysiological mechanisms of deafness, allow for a more precise diagnosis, and inform personalized treatment. Emerging techniques such as metabolomics can help to identify these biomarkers. The objective of the present study was to investigate immediate-early changes in the perilymph metabolome following acoustic trauma. Metabolomic analysis was performed using liquid chromatography coupled to mass spectrophotometry to analyze metabolic changes in perilymph associated with noise-induced hearing loss. Sheep (n = 6) were exposed to a noise designed to induce substantial hearing loss. Perilymph was collected before and after acoustic trauma. Data were analyzed using univariate analysis and a supervised multivariate analysis based on partial least squares discriminant analysis. A metabolomic analysis showed an abundance of 213 metabolites. Four metabolites were significantly changed following acoustic trauma (Urocanate (p = 0.004, FC = 0.48), S-(5’-Adenosyl)-L-Homocysteine (p = 0.06, FC = 2.32), Trigonelline (p = 0.06, FC = 0.46) and N-Acetyl-L-Leucine (p = 0.09, FC = 2.02)). The approach allowed for the identification of new metabolites and metabolic pathways involved with acoustic trauma that were associated with auditory impairment (nerve damage, mechanical destruction, and oxidative stress). The results suggest that metabolomics provides a powerful approach to characterize inner ear metabolites which may lead to identification of new therapies and therapeutic targets.
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Affiliation(s)
- Luc Boullaud
- ENT Department and Cervico-Facial Surgery, CHU de Tours, 2 Boulevard Tonnellé, 37044 Tours, France
- INSERM U1253, iBrain, University of Tours, 10 Boulevard Tonnellé, 37000 Tours, France
- Correspondence: ; Tel.: +33-02-4747-4747
| | - Hélène Blasco
- INSERM U1253, iBrain, University of Tours, 10 Boulevard Tonnellé, 37000 Tours, France
- Department of Biochemistry and Molecular Biology, CHU de Tours, 2 Boulevard Tonnellé, 37044 Tours, France
- Faculty of Medecine, University of Tours, 10 Boulevard Tonnellé, 37000 Tours, France
| | - Eliott Caillaud
- ENT Department and Cervico-Facial Surgery, CHU de Tours, 2 Boulevard Tonnellé, 37044 Tours, France
| | - Patrick Emond
- INSERM U1253, iBrain, University of Tours, 10 Boulevard Tonnellé, 37000 Tours, France
- Faculty of Medecine, University of Tours, 10 Boulevard Tonnellé, 37000 Tours, France
| | - David Bakhos
- ENT Department and Cervico-Facial Surgery, CHU de Tours, 2 Boulevard Tonnellé, 37044 Tours, France
- INSERM U1253, iBrain, University of Tours, 10 Boulevard Tonnellé, 37000 Tours, France
- Faculty of Medecine, University of Tours, 10 Boulevard Tonnellé, 37000 Tours, France
- House Institute Foundation, Los Angeles, CA 90089, USA
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Celaya AM, Rodríguez-de la Rosa L, Bermúdez-Muñoz JM, Zubeldia JM, Romá-Mateo C, Avendaño C, Pallardó FV, Varela-Nieto I. IGF-1 Haploinsufficiency Causes Age-Related Chronic Cochlear Inflammation and Increases Noise-Induced Hearing Loss. Cells 2021; 10:cells10071686. [PMID: 34359856 PMCID: PMC8304185 DOI: 10.3390/cells10071686] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 06/28/2021] [Accepted: 06/28/2021] [Indexed: 12/18/2022] Open
Abstract
Insulin-like growth factor 1 (IGF-1) deficiency is an ultrarare syndromic human sensorineural deafness. Accordingly, IGF-1 is essential for the postnatal maturation of the cochlea and the correct wiring of hearing in mice. Less severe decreases in human IGF-1 levels have been associated with other hearing loss rare genetic syndromes, as well as with age-related hearing loss (ARHL). However, the underlying mechanisms linking IGF-1 haploinsufficiency with auditory pathology and ARHL have not been studied. Igf1-heterozygous mice express less Igf1 transcription and have 40% lower IGF-1 serum levels than wild-type mice. Along with ageing, IGF-1 levels decreased concomitantly with the increased expression of inflammatory cytokines, Tgfb1 and Il1b, but there was no associated hearing loss. However, noise exposure of these mice caused increased injury to sensory hair cells and irreversible hearing loss. Concomitantly, there was a significant alteration in the expression ratio of pro- and anti-inflammatory cytokines in Igf1+/- mice. Unbalanced inflammation led to the activation of the stress kinase JNK and the failure to activate AKT. Our data show that IGF-1 haploinsufficiency causes a chronic subclinical proinflammatory age-associated state and, consequently, greater susceptibility to stressors. This work provides the molecular bases to further understand hearing disorders linked to IGF-1 deficiency.
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Affiliation(s)
- Adelaida M. Celaya
- Institute for Biomedical Research “Alberto Sols” (IIBM), Spanish National Research Council-Autonomous University of Madrid (CSIC-UAM), 28029 Madrid, Spain; (A.M.C.); (J.M.B.-M.); (J.M.Z.)
- Rare Diseases Biomedical Research Networking Centre (CIBERER), The Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain; (C.R.-M.); (F.V.P.)
| | - Lourdes Rodríguez-de la Rosa
- Institute for Biomedical Research “Alberto Sols” (IIBM), Spanish National Research Council-Autonomous University of Madrid (CSIC-UAM), 28029 Madrid, Spain; (A.M.C.); (J.M.B.-M.); (J.M.Z.)
- Rare Diseases Biomedical Research Networking Centre (CIBERER), The Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain; (C.R.-M.); (F.V.P.)
- Hospital La Paz Institute for Health Research (IdiPAZ), 28029 Madrid, Spain;
- Correspondence: (L.R.-d.l.R.); (I.V.-N.)
| | - Jose M. Bermúdez-Muñoz
- Institute for Biomedical Research “Alberto Sols” (IIBM), Spanish National Research Council-Autonomous University of Madrid (CSIC-UAM), 28029 Madrid, Spain; (A.M.C.); (J.M.B.-M.); (J.M.Z.)
- Rare Diseases Biomedical Research Networking Centre (CIBERER), The Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain; (C.R.-M.); (F.V.P.)
| | - José M. Zubeldia
- Institute for Biomedical Research “Alberto Sols” (IIBM), Spanish National Research Council-Autonomous University of Madrid (CSIC-UAM), 28029 Madrid, Spain; (A.M.C.); (J.M.B.-M.); (J.M.Z.)
- Rare Diseases Biomedical Research Networking Centre (CIBERER), The Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain; (C.R.-M.); (F.V.P.)
- Allergy Service, Gregorio Marañon General University Hospital, 28009 Madrid, Spain
- Gregorio Marañon Health Research Institute (IiSGM), 28009 Madrid, Spain
| | - Carlos Romá-Mateo
- Rare Diseases Biomedical Research Networking Centre (CIBERER), The Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain; (C.R.-M.); (F.V.P.)
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia, Spain and FIHCUV-INCLIVA, 46010 Valencia, Spain
| | - Carlos Avendaño
- Hospital La Paz Institute for Health Research (IdiPAZ), 28029 Madrid, Spain;
- Department of Anatomy, Histology & Neuroscience, Medical School, Autonomous University of Madrid, 28029 Madrid, Spain
| | - Federico V. Pallardó
- Rare Diseases Biomedical Research Networking Centre (CIBERER), The Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain; (C.R.-M.); (F.V.P.)
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia, Spain and FIHCUV-INCLIVA, 46010 Valencia, Spain
| | - Isabel Varela-Nieto
- Institute for Biomedical Research “Alberto Sols” (IIBM), Spanish National Research Council-Autonomous University of Madrid (CSIC-UAM), 28029 Madrid, Spain; (A.M.C.); (J.M.B.-M.); (J.M.Z.)
- Rare Diseases Biomedical Research Networking Centre (CIBERER), The Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain; (C.R.-M.); (F.V.P.)
- Hospital La Paz Institute for Health Research (IdiPAZ), 28029 Madrid, Spain;
- Correspondence: (L.R.-d.l.R.); (I.V.-N.)
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Transcriptomic Analysis Reveals an Altered Hcy Metabolism in the Stria Vascularis of the Pendred Syndrome Mouse Model. Neural Plast 2021; 2021:5585394. [PMID: 33959158 PMCID: PMC8075705 DOI: 10.1155/2021/5585394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/19/2021] [Accepted: 04/01/2021] [Indexed: 12/13/2022] Open
Abstract
Purpose Slc26a4-/- mice exhibit severer defects in the development of the cochlea and develop deafness, while the underlying mechanisms responsible for these effects remain unclear. Our study was to investigate the potential mechanism linking SLC26A4 deficiency to hearing loss. Materials and Methods RNA sequencing was applied to analyze the differential gene expression of the stria vascularis (SV) from wildtype and Slc26a4-/- mice. GO and KEGG pathway analysis were performed. Quantitative RT-PCR was applied to validate the expression of candidate genes affected by Slc26a4. ELISA and immunofluorescence technique were used to detect the homocysteine (Hcy) level in serum, brain, and SV, respectively. Results 183 upregulated genes and 63 downregulated genes were identified in the SV associated with Slc26a4 depletion. Transcriptomic profiling revealed that Slc26a4 deficiency significantly affected the expression of genes associated with cell adhesion, transmembrane transport, and the biogenesis of multicellular organisms. The SV from Slc26a4-/- mice exhibited a higher expression of Bhmt mRNAs, as well as altered homocysteine (Hcy) metabolism. Conclusions The altered expression of Bhmt results in a dramatic change in multiple biochemical reactions and a disruption of nutrient homeostasis in the endolymph which may contribute to hearing loss of Slc26a4 knockout mouse.
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Gentile G, Paciello F, Zorzi V, Spampinato AG, Guarnaccia M, Crispino G, Tettey-Matey A, Scavizzi F, Raspa M, Fetoni AR, Cavallaro S, Mammano F. miRNA and mRNA Profiling Links Connexin Deficiency to Deafness via Early Oxidative Damage in the Mouse Stria Vascularis. Front Cell Dev Biol 2021; 8:616878. [PMID: 33569381 PMCID: PMC7868390 DOI: 10.3389/fcell.2020.616878] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 12/10/2020] [Indexed: 12/15/2022] Open
Abstract
Pathogenic mutations in the non-syndromic hearing loss and deafness 1 (DFNB1) locus are the primary cause of monogenic inheritance for prelingual hearing loss. To unravel molecular pathways involved in etiopathology and look for early degeneration biomarkers, we used a system biology approach to analyze Cx30−/− mice at an early cochlear post-natal developmental stage. These mice are a DFNB1 mouse model with severely reduced expression levels of two connexins in the inner ear, Cx30, and Cx26. Integrated analysis of miRNA and mRNA expression profiles in the cochleae of Cx30−/− mice at post-natal day 5 revealed the overexpression of five miRNAs (miR-34c, miR-29b, miR-29c, miR-141, and miR-181a) linked to apoptosis, oxidative stress, and cochlear degeneration, which have Sirt1 as a common target of transcriptional and/or post-transcriptional regulation. In young adult Cx30−/− mice (3 months of age), these alterations culminated with blood barrier disruption in the Stria vascularis (SV), which is known to have the highest aerobic metabolic rate of all cochlear structures and whose microvascular alterations contribute to age-related degeneration and progressive decline of auditory function. Our experimental validation of selected targets links hearing acquisition failure in Cx30−/− mice, early oxidative stress, and metabolic dysregulation to the activation of the Sirt1–p53 axis. This is the first integrated analysis of miRNA and mRNA in the cochlea of the Cx30−/− mouse model, providing evidence that connexin downregulation determines a miRNA-mediated response which leads to chronic exhaustion of cochlear antioxidant defense mechanisms and consequent SV dysfunction. Our analyses support the notion that connexin dysfunction intervenes early on during development, causing vascular damage later on in life. This study identifies also early miRNA-mediated biomarkers of hearing impairment, either inherited or age related.
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Affiliation(s)
- Giulia Gentile
- Department of Biomedical Sciences, National Research Council (CNR) Institute for Biomedical Research and Innovation, Catania, Italy
| | - Fabiola Paciello
- Department of Neuroscience, Università Cattolica del Sacro Cuore, Rome, Italy.,Fondazione Policlinico Universitario A. Gemelli Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Veronica Zorzi
- Department of Head and Neck Surgery, Università Cattolica del Sacro Cuore, Rome, Italy.,Department of Biomedical Sciences, National Research Council (CNR) Institute of Biochemistry and Cell Biology, Rome, Italy
| | - Antonio Gianmaria Spampinato
- Department of Biomedical Sciences, National Research Council (CNR) Institute for Biomedical Research and Innovation, Catania, Italy.,Department of Mathematics and Computer Science, University of Catania, Catania, Italy
| | - Maria Guarnaccia
- Department of Biomedical Sciences, National Research Council (CNR) Institute for Biomedical Research and Innovation, Catania, Italy
| | - Giulia Crispino
- Department of Biomedical Sciences, National Research Council (CNR) Institute of Biochemistry and Cell Biology, Rome, Italy
| | - Abraham Tettey-Matey
- Department of Biomedical Sciences, National Research Council (CNR) Institute of Biochemistry and Cell Biology, Rome, Italy
| | - Ferdinando Scavizzi
- Department of Biomedical Sciences, National Research Council (CNR) Institute of Biochemistry and Cell Biology, Rome, Italy
| | - Marcello Raspa
- Fondazione Policlinico Universitario A. Gemelli Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Anna Rita Fetoni
- Fondazione Policlinico Universitario A. Gemelli Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy.,Department of Head and Neck Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Sebastiano Cavallaro
- Department of Biomedical Sciences, National Research Council (CNR) Institute for Biomedical Research and Innovation, Catania, Italy
| | - Fabio Mammano
- Department of Biomedical Sciences, National Research Council (CNR) Institute of Biochemistry and Cell Biology, Rome, Italy.,Department of Physics and Astronomy "G. Galilei", University of Padua, Padua, Italy
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Chen YC, Huang CY, Lee YT, Wu CH, Chang SK, Cheng HL, Chang PH, Niu DM, Cheng YF. Audiological and otologic manifestations of glutaric aciduria type I. Orphanet J Rare Dis 2020; 15:337. [PMID: 33256818 PMCID: PMC7706203 DOI: 10.1186/s13023-020-01571-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 10/05/2020] [Indexed: 11/26/2022] Open
Abstract
Background Glutaric aciduria type 1 (GA-1) is a rare disease connected with speech delay and neurological deficits. However, the audiological and otologic profiles of GA-1 have not yet been fully characterized. To our knowledge, this is the largest study of comprehensive audiological and otologic evaluation in patients with GA-1 to date.
Methods Thirteen patients diagnosed with GA-1 between January 1994 and December 2019 with audiological, radiological and genetic manifestations were retrospectively analyzed. Hearing tests were performed in all patients. MRI was performed for radiological evaluation. Results Hearing loss was found in 76.9% (10/13) of GA-1 patients, including slight hearing loss in 46.1% (6/13) of patients, mild hearing loss in 15.4% (2/13) of patients, and moderate hearing loss in 7.7% (1/13) of patients. Normal hearing thresholds were seen in 23% (3/13) of patients. Patients with intensive care unit (ICU) admission history showed significantly worse hearing than those without (29.17 ± 12.47 vs 13.56 ± 3.93 dB HL, 95% CI 2.92–24.70, p = 0.0176). One patient had moderate sensorineural hearing loss and a past history of acute encephalopathic crisis. No usual causative gene mutations associated with hearing loss were found in these patients. MRI showed a normal vestibulocochlear apparatus and cochlear nerve. One patient with extensive injury of the basal ganglia on MRI after acute encephalopathic crisis was found to have moderate sensorineural hearing loss. Two patients with disability scores above 5 were found to have mild to moderate hearing impairment. No obvious correlation between macrocephaly and hearing loss was found. Conclusion A high prevalence of hearing impairment is found in GA-1 patients. Adequate audiological evaluation is essential for these patients, especially for those after encephalopathic crises or with ICU admission history.
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Affiliation(s)
- Yen-Chi Chen
- Department of Otolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Otolaryngology-Head and Neck Surgery, Kaoshiung Municipal Gangshan Hospital (Outsourceded by Show-Chwan Memorial Hospital), Kaoshiung, Taiwan
| | - Chii-Yuan Huang
- Department of Otolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Otolaryngology-Head and Neck Surgery, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yen-Ting Lee
- Department of Otolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chia-Hung Wu
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Sheng-Kai Chang
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hsiu-Lien Cheng
- Department of Otolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Biomedical Engineering, National Yang-Ming University, Taipei, Taiwan
| | - Po-Hsiung Chang
- Department of Otolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Dau-Ming Niu
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan. .,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.
| | - Yen-Fu Cheng
- Department of Otolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei, Taiwan. .,Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan. .,Department of Otolaryngology-Head and Neck Surgery, School of Medicine, National Yang-Ming University, Taipei, Taiwan. .,Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan.
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10
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Bermúdez‐Muñoz JM, Celaya AM, Hijazo‐Pechero S, Wang J, Serrano M, Varela‐Nieto I. G6PD overexpression protects from oxidative stress and age-related hearing loss. Aging Cell 2020; 19:e13275. [PMID: 33222382 PMCID: PMC7744953 DOI: 10.1111/acel.13275] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 09/03/2020] [Accepted: 10/18/2020] [Indexed: 12/17/2022] Open
Abstract
Aging of the auditory system is associated with the incremental production of reactive oxygen species (ROS) and the accumulation of oxidative damage in macromolecules, which contributes to cellular malfunction, compromises cell viability, and, ultimately, leads to functional decline. Cellular detoxification relies in part on the production of NADPH, which is an important cofactor for major cellular antioxidant systems. NADPH is produced principally by the housekeeping enzyme glucose‐6‐phosphate dehydrogenase (G6PD), which catalyzes the rate‐limiting step in the pentose phosphate pathway. We show here that G6PD transgenic mice (G6PD‐Tg), which show enhanced constitutive G6PD activity and NADPH production along life, have lower auditory thresholds than wild‐type mice during aging, together with preserved inner hair cell (IHC) and outer hair cell (OHC), OHC innervation, and a conserved number of synapses per IHC. Gene expression of antioxidant enzymes was higher in 3‐month‐old G6PD‐Tg mice than in wild‐type counterparts, whereas the levels of pro‐apoptotic proteins were lower. Consequently, nitration of proteins, mitochondrial damage, and TUNEL+ apoptotic cells were all lower in 9‐month‐old G6PD‐Tg than in wild‐type counterparts. Unexpectedly, G6PD overexpression triggered low‐grade inflammation that was effectively resolved in young mice, as shown by the absence of cochlear cellular damage and macrophage infiltration. Our results lead us to propose that NADPH overproduction from an early stage is an efficient mechanism to maintain the balance between the production of ROS and cellular detoxification power along aging and thus prevents hearing loss progression.
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Affiliation(s)
- Jose M. Bermúdez‐Muñoz
- Institute for Biomedical Research “Alberto Sols” (IIBM) Spanish National Research Council‐Autonomous University of Madrid (CSIC‐UAM Madrid Spain
- Rare Diseases Networking Biomedical Research Centre (CIBERER) CIBER Carlos III Institute of Health Madrid Spain
| | - Adelaida M. Celaya
- Institute for Biomedical Research “Alberto Sols” (IIBM) Spanish National Research Council‐Autonomous University of Madrid (CSIC‐UAM Madrid Spain
- Rare Diseases Networking Biomedical Research Centre (CIBERER) CIBER Carlos III Institute of Health Madrid Spain
| | - Sara Hijazo‐Pechero
- Institute for Biomedical Research “Alberto Sols” (IIBM) Spanish National Research Council‐Autonomous University of Madrid (CSIC‐UAM Madrid Spain
| | - Jing Wang
- INSERM ‐ UMR 1051 Institut des Neurosciences de Montpellier Montpellier France
| | - Manuel Serrano
- Institute for Research in Biomedicine (IRB) Barcelona Spain
| | - Isabel Varela‐Nieto
- Institute for Biomedical Research “Alberto Sols” (IIBM) Spanish National Research Council‐Autonomous University of Madrid (CSIC‐UAM Madrid Spain
- Rare Diseases Networking Biomedical Research Centre (CIBERER) CIBER Carlos III Institute of Health Madrid Spain
- Hospital La Paz Institute for Health Research (IdiPAZ) Madrid Spain
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11
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Hanawa A, Ogata G, Sawamura S, Asai K, Kanzaki S, Hibino H, Einaga Y. In Vivo Real-Time Simultaneous Examination of Drug Kinetics at Two Separate Locations Using Boron-Doped Diamond Microelectrodes. Anal Chem 2020; 92:13742-13749. [PMID: 32786440 DOI: 10.1021/acs.analchem.0c01707] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Methylcobalamin, which is used for the clinical treatment of patients with neuropathy, can have an impact on the sensorineural components associated with the cochlea, and it is possible that the auditory threshold in a certain population of patients with deafness may be recovered. Nonetheless, it remains uncertain whether the action site of methylcobalamin is localized inside or outside the cochlea and which cellular or tissue element is targeted by the drug. In the present work, we developed a method to realize in vivo real-time simultaneous examination of the drug kinetics in two separate locations using boron-doped diamond microelectrodes. First, the analytical performance of methylcobalamin was studied and the measurement protocol was optimized in vitro. Then, the optimized protocol was applied to carry out real-time measurements inside the cochlea and the leg muscle in live guinea pigs while systemically administering methylcobalamin. The results showed that the methylcobalamin concentration in the cochlea was below the limit of detection for the microelectrodes or the drug did not reach the cochlea, whereas the compound clearly reached the leg muscle.
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Affiliation(s)
- Ai Hanawa
- Department of Chemistry, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan
| | - Genki Ogata
- Department of Molecular Physiology, School of Medicine, Niigata University, Niigata 951-8510, Japan
| | - Seishiro Sawamura
- Department of Molecular Physiology, School of Medicine, Niigata University, Niigata 951-8510, Japan
| | - Kai Asai
- Department of Chemistry, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan
| | - Sho Kanzaki
- Department of Otolaryngology, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Hiroshi Hibino
- Department of Molecular Physiology, School of Medicine, Niigata University, Niigata 951-8510, Japan
| | - Yasuaki Einaga
- Department of Chemistry, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan
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12
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Varela-Nieto I, Murillo-Cuesta S, Calvino M, Cediel R, Lassaletta L. Drug development for noise-induced hearing loss. Expert Opin Drug Discov 2020; 15:1457-1471. [PMID: 32838572 DOI: 10.1080/17460441.2020.1806232] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Excessive exposure to noise is a common occurrence that contributes to approximately 50% of the non-genetic hearing loss cases. Researchers need to develop standardized preclinical models and identify molecular targets to effectively develop prevention and curative therapies. AREAS COVERED In this review, the authors discuss the many facets of human noise-induced pathology, and the primary experimental models for studying the basic mechanisms of noise-induced damage, making connections and inferences among basic science studies, preclinical proofs of concept and clinical trials. EXPERT OPINION Whilst experimental research in animal models has helped to unravel the mechanisms of noise-induced hearing loss, there are often methodological variations and conflicting results between animal and human studies which make it difficult to integrate data and translate basic outcomes to clinical practice. Standardization of exposure paradigms and application of -omic technologies will contribute to improving the effectiveness of transferring newly gained knowledge to clinical practice.
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Affiliation(s)
- Isabel Varela-Nieto
- Neurobiology of Hearing Research Group, Endocrine and Nervous System Pathophysiology Department, Institute for Biomedical Research "Alberto Sols" CSIC-UAM , Madrid, Spain.,Institute for Biomedical Research "Alberto Sols" CSIC-UAM , Madrid, Spain.,Oto-Neurosurgery Research Group, Cancer and Human Molecular Genetics Department, IdiPAZ Research Institute , Madrid, Spain
| | - Silvia Murillo-Cuesta
- Neurobiology of Hearing Research Group, Endocrine and Nervous System Pathophysiology Department, Institute for Biomedical Research "Alberto Sols" CSIC-UAM , Madrid, Spain.,Institute for Biomedical Research "Alberto Sols" CSIC-UAM , Madrid, Spain.,Oto-Neurosurgery Research Group, Cancer and Human Molecular Genetics Department, IdiPAZ Research Institute , Madrid, Spain
| | - Miryam Calvino
- Institute for Biomedical Research "Alberto Sols" CSIC-UAM , Madrid, Spain.,Oto-Neurosurgery Research Group, Cancer and Human Molecular Genetics Department, IdiPAZ Research Institute , Madrid, Spain.,Department of Otorhinolaryngology, La Paz University Hospital , Madrid, Spain
| | - Rafael Cediel
- Neurobiology of Hearing Research Group, Endocrine and Nervous System Pathophysiology Department, Institute for Biomedical Research "Alberto Sols" CSIC-UAM , Madrid, Spain.,Institute for Biomedical Research "Alberto Sols" CSIC-UAM , Madrid, Spain.,Oto-Neurosurgery Research Group, Cancer and Human Molecular Genetics Department, IdiPAZ Research Institute , Madrid, Spain.,Department of Animal Medicine and Surgery, Complutense University of Madrid , Madrid, Spain
| | - Luis Lassaletta
- Institute for Biomedical Research "Alberto Sols" CSIC-UAM , Madrid, Spain.,Oto-Neurosurgery Research Group, Cancer and Human Molecular Genetics Department, IdiPAZ Research Institute , Madrid, Spain.,Department of Otorhinolaryngology, La Paz University Hospital , Madrid, Spain
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13
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Rodrigo L, Campos-Asensio C, Rodríguez MÁ, Crespo I, Olmedillas H. Role of nutrition in the development and prevention of age-related hearing loss: A scoping review. J Formos Med Assoc 2020; 120:107-120. [PMID: 32473863 DOI: 10.1016/j.jfma.2020.05.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 05/07/2020] [Accepted: 05/08/2020] [Indexed: 11/18/2022] Open
Abstract
Age-related hearing loss (ARHL) is a major and increasingly prevalent health problem worldwide, causing disability and social isolation in the people who present it. This impairment is caused by genetic and environmental factors. Nutritional status has been identified as a related risk associated with hearing loss (HL). This scoping review aimed to characterize the links between HL and nutritional status. PubMed, Embase, Cochrane and Scopus databases were searched up to December 2019. Studies examining the relation between nutrition and dietary habits and HL were included. After screening 3510 citations, 22 publications were selected for inclusion in the current review, all of which were published between 2010 and 2019. Diets rich in saturated fats and cholesterol have deleterious effects on hearing that could be prevented by lower consumption. Conversely, greater consumption of fruit and vegetables, and of polyunsaturated fatty acids (omega-3) and anti-oxidants in the form of vitamins A, C, and E, prevent the development of ARHL. The current literature suggests a possible association between nutritional status and hearing loss. More studies are needed to better characterize the clinical consequences of this association.
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Affiliation(s)
- Luis Rodrigo
- Gastroenterology Unit, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain
| | | | | | - Irene Crespo
- Department of Functional Biology, University of Oviedo, Oviedo, Spain; Institute of Biomedicine, University of León, León, Spain
| | - Hugo Olmedillas
- Department of Functional Biology, University of Oviedo, Oviedo, Spain; Health Research Institute of the Principality of Asturias (ISPA), Oviedo, Spain.
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14
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Metabolism and Functions of Amino Acids in Sense Organs. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1265:201-217. [PMID: 32761578 DOI: 10.1007/978-3-030-45328-2_12] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Sense organs (eyes, ears, nose, tongue, and skin) provide senses of sight, hearing, smell, taste, and touch, respectively, to aid the survival, development, learning, and adaptation of humans and other animals (including fish). Amino acids (AAs) play an important role in the growth, development, and functions of the sense organs. Recent work has identified receptor-mediated mechanisms responsible for the chemosensory transduction of five basic taste qualities (sweet, sour, bitter, umami and salty tastes). Abnormal metabolism of AAs result in a structural deformity of tissues and their dysfunction. To date, there is a large database for AA metabolism in the eye and skin under normal (e.g., developmental changes and physiological responses) and pathological (e.g., nutritional and metabolic diseases, nutrient deficiency, infections, and cancer) conditions. Important metabolites of AAs include nitric oxide and polyamines (from arginine), melanin and dopamine (from phenylalanine and tyrosine), and serotonin and melatonin (from tryptophan) in both the eye and the skin; γ-aminobutyrate (from glutamate) in the retina; and urocanic acid and histamine (from histidine) in the skin. At present, relatively little is known about the synthesis or catabolism of AAs in the ears, nose, and tongue. Future research should be directed to: (1) address this issue with regard to healthy ageing, nasal and sinus cancer, the regulation of food intake, and oral cavity health; and (2) understand how prenatal and postnatal nutrition and environmental pollution affect the growth, development and health of the sense organs, as well as their expression of genes (including epigenetics) and proteins in humans and other animals.
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15
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Vinaykumar N, Kumar A, Quadros LS, Prasanna LC. Determining the effect of folate diets during pregnancy and lactation on neurobehavioural changes in the adult life of offspring. J Taibah Univ Med Sci 2019; 14:523-530. [PMID: 31908640 PMCID: PMC6940624 DOI: 10.1016/j.jtumed.2019.09.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 09/14/2019] [Accepted: 09/17/2019] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVES Animal and human studies have demonstrated that folic acid (FA) is essential for nervous system and brain development. In humans, insufficient maternal FA intake is known to cause neural tube defects, autism spectrum, and other neurodevelopmental disorders in children. The present study aimed to determine the impact of maternal FA supplementation on psychomotor skills and learning and memory functions in their adult offspring. METHODS Eighteen female Wistar rats were randomly divided into three groups. The animals were fed three different concentrations of FA from preconception to pregnancy and during lactation. The adult offspring were assessed for neurobehavioural changes and histological confirmation by hippocampal neuron quantification. RESULTS Neurobehavioural assessment revealed a significantly smaller number of alternations, a higher percentage bias, and a greater number of working and reference memory errors. The increased time spent in the dark compartment in the FA-supplementation group indicated deficit(s) in learning memory. Hippocampal neuron quantification revealed a higher mean number of viable neurons in the cornu ammonis (CA) region in the control group (CA1 region, 31.2 ± 3.2; CA3 region, 23.2 ± 3.2), with a distinct nucleus in both regions, and least in the FA-supplementation group (CA1 region, 24.2 ± 3.1; CA3 region, 15.2 ± 2.2). CONCLUSION Results of this investigation support the possible negative effect of high levels of maternal FA supplementation during pregnancy and lactation. Such alterations potentially lead to neurobehavioural changes in the adult offspring of Wistar rats.
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Affiliation(s)
| | - Ashok Kumar
- Department of Neurosurgery, RADBOUD UMC, Nijmegen, Netherlands
| | - Lydia S. Quadros
- Department of Anatomy, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India
| | - Lokadolalu C. Prasanna
- Department of Anatomy, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India
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16
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Diet quality and hearing loss among middle-older aged adults in the USA: findings from National Health and Nutrition Examination Survey. Public Health Nutr 2019; 23:812-820. [PMID: 31666145 DOI: 10.1017/s1368980019002970] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To examine the associations between overall diet quality and hearing function among middle-older aged adults in the USA. DESIGN Cross-sectional analysis. Diet quality was examined using the Mediterranean Diet Score (MDS), using data from a single 24 h dietary recall. Hearing function was objectively measured by audiometry assessments and hearing loss, including high- and low-frequency hearing loss, was defined as pure-tone averages at specific ranges of hearing frequencies >25 dB. Weighted logistic regression analyses were performed to examine the associations of MDS (scored 0-9, categorized at the median as ≤3 or >3) with hearing loss and high- and low-frequency hearing loss. SETTING National Health and Nutrition Examination Surveys 2000-2006 and 2009-2012. PARTICIPANTS Adults aged ≥50 years (n 1639) with valid dietary and audiometry assessments. RESULTS After adjusting for potential confounders, a non-significant trend for a protective association of higher MDS was observed for hearing loss (OR = 0·78; 95 % CI 0·49, 1·23). A significant inverse association was observed for high-frequency hearing loss (OR = 0·64; 95 % CI 0·43, 0·95). No association was found for low-frequency hearing loss among women; however, higher MDS was significantly associated with higher odds of low-frequency hearing loss among men (OR = 2·63; 95 % CI 1·39, 4·95). CONCLUSIONS Among middle-older aged adults, adherence to a Mediterranean-style diet was inversely associated with hearing loss, including those at high hearing frequencies, among older adults. However, a detrimental association was observed at low hearing frequencies among men. Future investigations with a longitudinal design are needed to clarify the associations between diet quality and hearing loss.
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17
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Kondo T, Saigo S, Ugawa S, Kato M, Yoshikawa Y, Miyoshi N, Tanabe K. Prebiotic effect of fructo-oligosaccharides on the inner ear of DBA/2 J mice with early-onset progressive hearing loss. J Nutr Biochem 2019; 75:108247. [PMID: 31707282 DOI: 10.1016/j.jnutbio.2019.108247] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 08/08/2019] [Accepted: 09/10/2019] [Indexed: 01/01/2023]
Abstract
Nutrition and dietary habits contribute to the onset and progression of sensorineural hearing loss (SNHL). Fructo-oligosaccharides (FOS) are non-digestible oligosaccharides and are known as prebiotics, which enhance short-chain fatty acid (SCFA) production and antioxidant activity. Although a substantial number of studies have shown that FOS play a role in the prevention of lifestyle-related diseases as prebiotics, little is known about the effects on the inner ear. The purpose of this study is to investigate the effect of FOS on gene expression and spiral ganglion neuron (SGN) protection in the inner ear of DBA/2 J mice, which is a model for early-onset progressive hearing loss. DBA/2 J mice were fed either control diet or FOS diet contained 10% (w/w) of FOS for 8 weeks. Analysis of mice fed the FOS diet revealed a change in intestinal flora including an inversion of the ratio of Bacteroidetes and Firmicutes, which was followed by a significant increase in SCFAs in the cecum and a decrease in an oxidative stress marker in the serum. In the inner ear, gene expression of neurotrophin, brain-derived neurotrophic factor (BDNF), its receptor, tyrosine kinase receptor b (Trkb), and the SCFA receptor, free fatty acid receptor 3 (FFAR3), were increased by FOS. In addition, the survival rate of SGNs in the inner ear was maintained in FOS-fed mice. Altogether, these results suggest that a compositional variation of the intestinal flora due to a prebiotic effect may be involved in the progression of SNHL.
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Affiliation(s)
- Takako Kondo
- Department of Food Science and Nutrition, Faculty of Human Life and Environmental Sciences, Nagoya Women's University, 3-40 Shioji-cho, Mizuho-ku, Nagoya, Aichi 467-8610, Japan.
| | - Saori Saigo
- Department of Food Science and Nutrition, Faculty of Human Life and Environmental Sciences, Nagoya Women's University, 3-40 Shioji-cho, Mizuho-ku, Nagoya, Aichi 467-8610, Japan.
| | - Shinya Ugawa
- Department of Anatomy and Neuroscience, Graduate School of Medical Sciences, Nagoya City University, 1Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8601, Japan.
| | - Mai Kato
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Yuto Yoshikawa
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Noriyuki Miyoshi
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Kenichi Tanabe
- Department of Food Science and Nutrition, Faculty of Human Life and Environmental Sciences, Nagoya Women's University, 3-40 Shioji-cho, Mizuho-ku, Nagoya, Aichi 467-8610, Japan.
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18
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Özdemir D, Mehel DM, Küçüköner Ö, Ağrı İ, Yemiş T, Akgül G, Özgür A. Vestibular Evoked Myogenic Potentials in Patients With Low Vitamin B12 Levels. EAR, NOSE & THROAT JOURNAL 2019; 100:NP231-NP235. [PMID: 31565985 DOI: 10.1177/0145561319878952] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE Vitamin B12 deficiency-induced hyperhomocysteinemia has been associated with impaired microarterial flow, demyelization, and neuronal damage, resulting in cochlear damage and auditory dysfunction. Therefore, we aimed to evaluate the possible vestibular-evoked myogenic potential (VEMP) abnormalities in patients with vitamin B12 deficiency. MATERIAL AND METHOD In this prospective study, 37 patients diagnosed with vitamin B12 deficiency (<220 pg/mL) were compared with 31 audiologically healthy participants with normal B12 levels. Burst-evoked cervical VEMP (cVEMP) measurements were performed on all participants. Additionally, cVEMP responses were analyzed for P1-N1 latency, interpeak amplitude, and amplitude asymmetry ratio. The results of audiometric examination and VEMP records as well as absent responses were evaluated and compared between groups. RESULTS The rate of absent VEMP responses was twice as high in the patient group than in the healthy control group (12 vs 6 cases, respectively). Moreover, the mean values of interpeak amplitude in both right and left ears were statistically shorter in the patient group than the control group (P values = .024 and .007, respectively). Similarly, the mean amplitude asymmetry ratio was statistically higher in the patient group than the control group (P = .050). There were no statistically significant differences in latency responses between groups. Furthermore, positive, statistically significant correlation was detected between values of the left P1-N1 interpeak amplitude and vitamin B12 levels (r = 0.287, P = .037). CONCLUSIONS Increased rates of absent VEMPs and decreased amplitudes with normal latencies are attributed to peripheral vestibular hypofunction in patients with vitamin B12 deficiency.
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Affiliation(s)
- Doğukan Özdemir
- Department of Otorhinolaryngology, University of Health Sciences, Samsun, Turkey
| | - Dursun Mehmet Mehel
- Department of Otorhinolaryngology, University of Health Sciences, Samsun, Turkey
| | - Ömer Küçüköner
- Department of Audiology, Samsun Training and Research Hospital, Samsun, Turkey
| | - İbrahim Ağrı
- Department of Otorhinolaryngology, Samsun Training and Research Hospital, Samsun, Turkey
| | - Tuğba Yemiş
- Department of Otorhinolaryngology, Samsun Training and Research Hospital, Samsun, Turkey
| | - Gökhan Akgül
- Department of Otorhinolaryngology, Samsun Training and Research Hospital, Samsun, Turkey
| | - Abdulkadir Özgür
- Department of Otorhinolaryngology, University of Health Sciences, Samsun, Turkey
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19
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Partearroyo T, Murillo-Cuesta S, Vallecillo N, Bermúdez-Muñoz JM, Rodríguez-de la Rosa L, Mandruzzato G, Celaya AM, Zeisel SH, Pajares MA, Varela-Moreiras G, Varela-Nieto I. Betaine-homocysteine S-methyltransferase deficiency causes increased susceptibility to noise-induced hearing loss associated with plasma hyperhomocysteinemia. FASEB J 2019; 33:5942-5956. [PMID: 30753104 PMCID: PMC6463923 DOI: 10.1096/fj.201801533r] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Betaine-homocysteine S-methyltransferases (BHMTs) are methionine cycle enzymes that remethylate homocysteine; hence, their malfunction leads to hyperhomocysteinemia. Epidemiologic and experimental studies have revealed a correlation between hyperhomocysteinemia and hearing loss. Here, we have studied the expression of methionine cycle genes in the mouse cochlea and the impact of knocking out the Bhmt gene in the auditory receptor. We evaluated age-related changes in mouse hearing by recording auditory brainstem responses before and following exposure to noise. Also, we measured cochlear cytoarchitecture, gene expression by RNA-arrays and quantitative RT-PCR, and metabolite levels in liver and plasma by HPLC. Our results indicate that there is an age-dependent strain-specific expression of methionine cycle genes in the mouse cochlea and a further regulation during the response to noise damage. Loss of Bhmt did not cause an evident impact in the hearing acuity of young mice, but it produced higher threshold shifts and poorer recovery following noise challenge. Hearing loss was associated with increased cochlear injury, outer hair cell loss, altered expression of cochlear methionine cycle genes, and hyperhomocysteinemia. Our results suggest that BHMT plays a central role in the homeostasis of cochlear methionine metabolism and that Bhmt2 up-regulation could carry out a compensatory role in cochlear protection against noise injury in the absence of BHMT.-Partearroyo, T., Murillo-Cuesta, S., Vallecillo, N., Bermúdez-Muñoz, J. M., Rodríguez-de la Rosa, L., Mandruzzato, G., Celaya, A. M., Zeisel, S. H., Pajares, M. A., Varela-Moreiras, G., Varela-Nieto, I. Betaine-homocysteine S-methyltransferase deficiency causes increased susceptibility to noise-induced hearing loss associated with plasma hyperhomocysteinemia.
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Affiliation(s)
- Teresa Partearroyo
- Departamento de Ciencias Farmacéuticas y de la Salud, Facultad de Farmacia, Universidad Centro de Estudios Universitarios CEU San Pablo, Madrid, Spain;,Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas–Universidad Autónoma de Madrid (CSIC-UAM), Madrid, Spain
| | - Silvia Murillo-Cuesta
- Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas–Universidad Autónoma de Madrid (CSIC-UAM), Madrid, Spain;,Centro de Investigación Biomédica en Red de Enfermedades Raras, (CIBERER), Instituto de Salud Carlos III, Madrid, Spain;,Instituto de Investigación Sanitaria La Paz (IdiPAZ), Madrid, Spain;,Correspondence: Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM), Arturo Duperier 4, 28029 Madrid, Spain. E-mail:
| | - Néstor Vallecillo
- Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas–Universidad Autónoma de Madrid (CSIC-UAM), Madrid, Spain
| | - Jose M. Bermúdez-Muñoz
- Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas–Universidad Autónoma de Madrid (CSIC-UAM), Madrid, Spain;,Centro de Investigación Biomédica en Red de Enfermedades Raras, (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
| | - Lourdes Rodríguez-de la Rosa
- Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas–Universidad Autónoma de Madrid (CSIC-UAM), Madrid, Spain;,Centro de Investigación Biomédica en Red de Enfermedades Raras, (CIBERER), Instituto de Salud Carlos III, Madrid, Spain;,Instituto de Investigación Sanitaria La Paz (IdiPAZ), Madrid, Spain
| | | | - Adelaida M. Celaya
- Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas–Universidad Autónoma de Madrid (CSIC-UAM), Madrid, Spain;,Centro de Investigación Biomédica en Red de Enfermedades Raras, (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
| | - Steven H. Zeisel
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, North Carolina, USA; and
| | - María A. Pajares
- Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas–Universidad Autónoma de Madrid (CSIC-UAM), Madrid, Spain;,Instituto de Investigación Sanitaria La Paz (IdiPAZ), Madrid, Spain;,Centro de Investigaciones Biológicas, (CSIC) Madrid, Spain
| | - Gregorio Varela-Moreiras
- Departamento de Ciencias Farmacéuticas y de la Salud, Facultad de Farmacia, Universidad Centro de Estudios Universitarios CEU San Pablo, Madrid, Spain;,Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas–Universidad Autónoma de Madrid (CSIC-UAM), Madrid, Spain
| | - Isabel Varela-Nieto
- Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas–Universidad Autónoma de Madrid (CSIC-UAM), Madrid, Spain;,Centro de Investigación Biomédica en Red de Enfermedades Raras, (CIBERER), Instituto de Salud Carlos III, Madrid, Spain;,Instituto de Investigación Sanitaria La Paz (IdiPAZ), Madrid, Spain
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20
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Jung SY, Kim SH, Yeo SG. Association of Nutritional Factors with Hearing Loss. Nutrients 2019; 11:nu11020307. [PMID: 30717210 PMCID: PMC6412883 DOI: 10.3390/nu11020307] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 01/28/2019] [Accepted: 01/29/2019] [Indexed: 12/28/2022] Open
Abstract
Hearing loss (HL) is a major public health problem. Nutritional factors can affect a variety of diseases, such as HL, in humans. Thus far, several studies have evaluated the association between nutrition and hearing. These studies found that the incidence of HL was increased with the lack of single micro-nutrients such as vitamins A, B, C, D and E, and zinc, magnesium, selenium, iron and iodine. Higher carbohydrate, fat, and cholesterol intake, or lower protein intake, by individuals corresponded to poorer hearing status. However, higher consumption of polyunsaturated fatty acids corresponded to better hearing status of studied subjects. In addition to malnutrition, obesity was reported as a risk factor for HL. In studies of the relationship between middle ear infection and nutrition in children, it was reported that lack of vitamins A, C and E, and zinc and iron, resulted in poorer healing status due to vulnerability to infection. These studies indicate that various nutritional factors can affect hearing. Therefore, considering that multifactorial nutritional causes are responsible, in part, for HL, provision of proper guidelines for maintaining a proper nutritional status is expected to prevent some of the causes and burden of HL.
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Affiliation(s)
- Su Young Jung
- Department of Otorhinolaryngology-Head and Neck Surgery, Myongji Hospital, Hanyang University, College of Medicine, Goyang 10475, Korea.
| | - Sang Hoon Kim
- Department of Otorhinolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University, Seoul 02447, Korea.
| | - Seung Geun Yeo
- Department of Otorhinolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University, Seoul 02447, Korea.
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21
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Nam YH, Rodriguez I, Jeong SY, Pham TNM, Nuankaew W, Kim YH, Castañeda R, Jeong SY, Park MS, Lee KW, Lee JS, Kim DH, Park YH, Kim SH, Moon IS, Choung SY, Hong BN, Jeong KW, Kang TH. Avocado Oil Extract Modulates Auditory Hair Cell Function through the Regulation of Amino Acid Biosynthesis Genes. Nutrients 2019; 11:nu11010113. [PMID: 30626089 PMCID: PMC6356572 DOI: 10.3390/nu11010113] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 12/24/2018] [Accepted: 01/05/2019] [Indexed: 12/21/2022] Open
Abstract
Sensorineural hearing loss (SNHL) is one of the most common causes of disability, affecting over 466 million people worldwide. However, prevention or therapy of SNHL has not been widely studied. Avocado oil has shown many health benefits but it has not yet been studied in regards to SNHL. Therefore, we aimed to investigate the efficacy of avocado oil on SNHL in vitro and in vivo and elucidate its mode of action. For the present study, we used enhanced functional avocado oil extract (DKB122). DKB122 led to recovery of otic hair cells in zebrafish after neomycin-induced otic cell damage. Also, DKB122 improved auditory sensory transmission function in a mouse model of noise induced-hearing loss and protected sensory hair cells in the cochlea. In addition, RNA sequencing was performed to elucidate the mechanism involved. KEGG pathway enrichment analysis of differentially expressed genes showed that DKB122 protected House Ear Institute-Organ of Corti 1 (HEI-OC1) cells against neomycin-related alterations in gene expression due to oxidative stress, cytokine production and protein synthesis.
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MESH Headings
- Amino Acids/biosynthesis
- Animals
- Auditory Perception/drug effects
- Cochlea/cytology
- Cochlea/drug effects
- Cochlea/metabolism
- Gene Expression Regulation/drug effects
- Hair Cells, Auditory/drug effects
- Hair Cells, Auditory/metabolism
- Hair Cells, Auditory/physiology
- Hearing Loss, Noise-Induced/drug therapy
- Hearing Loss, Noise-Induced/genetics
- Hearing Loss, Noise-Induced/metabolism
- Hearing Loss, Noise-Induced/physiopathology
- Hearing Loss, Sensorineural/drug therapy
- Hearing Loss, Sensorineural/genetics
- Hearing Loss, Sensorineural/metabolism
- Hearing Loss, Sensorineural/physiopathology
- Metabolic Networks and Pathways/drug effects
- Metabolic Networks and Pathways/genetics
- Mice
- Persea/chemistry
- Phytotherapy
- Plant Extracts/pharmacology
- Plant Extracts/therapeutic use
- Plant Oils/pharmacology
- Plant Oils/therapeutic use
- Sequence Analysis, RNA
- Zebrafish
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Affiliation(s)
- Youn Hee Nam
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Global Campus, Gyeonggi 17104, Korea.
| | - Isabel Rodriguez
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Global Campus, Gyeonggi 17104, Korea.
| | - Seo Yeon Jeong
- Gachon Institute of Pharmaceutical Sciences, College of Pharmacy, Gachon University, Incheon 21936, Korea.
| | - Thu Nguyen Minh Pham
- Gachon Institute of Pharmaceutical Sciences, College of Pharmacy, Gachon University, Incheon 21936, Korea.
| | - Wanlapa Nuankaew
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Global Campus, Gyeonggi 17104, Korea.
| | - Yun Hee Kim
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Global Campus, Gyeonggi 17104, Korea.
| | - Rodrigo Castañeda
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Global Campus, Gyeonggi 17104, Korea.
| | - Seo Yule Jeong
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Global Campus, Gyeonggi 17104, Korea.
| | - Min Seon Park
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Global Campus, Gyeonggi 17104, Korea.
| | - Kye Wan Lee
- R&D Center, Dongkook Pharm. Co., Ltd., Gyeonggi 16229, Korea.
| | - Jung Suk Lee
- R&D Center, Dongkook Pharm. Co., Ltd., Gyeonggi 16229, Korea.
| | - Do Hoon Kim
- R&D Center, Dongkook Pharm. Co., Ltd., Gyeonggi 16229, Korea.
| | - Yu Hwa Park
- R&D Center, Dongkook Pharm. Co., Ltd., Gyeonggi 16229, Korea.
| | - Seung Hyun Kim
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon 21983, Korea.
| | - In Seok Moon
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul 03722, Korea.
| | - Se-Young Choung
- Department of Preventive Pharmacy and Toxicology, College of Pharmacy, Kyung Hee University, Seoul 02453, Korea.
| | - Bin Na Hong
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Global Campus, Gyeonggi 17104, Korea.
| | - Kwang Won Jeong
- Gachon Institute of Pharmaceutical Sciences, College of Pharmacy, Gachon University, Incheon 21936, Korea.
| | - Tong Ho Kang
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Global Campus, Gyeonggi 17104, Korea.
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22
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Puga AM, Pajares MA, Varela-Moreiras G, Partearroyo T. Interplay between Nutrition and Hearing Loss: State of Art. Nutrients 2018; 11:nu11010035. [PMID: 30586880 PMCID: PMC6356655 DOI: 10.3390/nu11010035] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 12/17/2018] [Accepted: 12/21/2018] [Indexed: 12/14/2022] Open
Abstract
Hearing loss has been recently ranked as the fifth leading cause of years lived with disability, ahead of many other chronic diseases such as diabetes, dementia, or chronic obstructive pulmonary disease. Moreover, according to the World Health Organization, moderate-to-profound hearing loss affects about 466 million people worldwide. Its incidence varies in each population segment, affecting approximately 10% of children and increasing to 30% of the population over 65 years. However, hearing loss receives still very limited research funding and public awareness. This sensory impairment is caused by genetic and environmental factors, and among the latter, the nutritional status has acquired relevance due its association to hearing loss detected in recent epidemiological studies. Several experimental models have proved that the onset and progression of hearing loss are closely linked to the availability of nutrients and their metabolism. Here, we have reviewed studies focused on nutrient effects on auditory function. These studies support the potential of nutritional therapy for the protection against hearing loss progression, which is especially relevant to the aging process and related quality of life.
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Affiliation(s)
- Ana M Puga
- Department of Pharmaceutical and Health Sciences, Faculty of Pharmacy, CEU San Pablo University, 28668 Madrid, Spain.
| | - María A Pajares
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas (CSIC), 28040 Madrid, Spain.
- Molecular Hepatology Group, Hospital La Paz Institute for Health Research (IdiPAZ), 28046 Madrid, Spain.
| | - Gregorio Varela-Moreiras
- Department of Pharmaceutical and Health Sciences, Faculty of Pharmacy, CEU San Pablo University, 28668 Madrid, Spain.
| | - Teresa Partearroyo
- Department of Pharmaceutical and Health Sciences, Faculty of Pharmacy, CEU San Pablo University, 28668 Madrid, Spain.
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23
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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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Balta B, Gundogdu R, Erdogan M, Alisik M, Kiraz A, Ozcan I, Erel O. Decreased disulphide/thiol ratio in patients with autosomal recessive non-syndromic hearing loss. Int J Pediatr Otorhinolaryngol 2018; 112:188-192. [PMID: 30055731 DOI: 10.1016/j.ijporl.2018.07.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 07/05/2018] [Accepted: 07/09/2018] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Oxidative stress plays a key role in the formation of age-related, noise-induced and drug-induced hearing loss. Thiols are organic compounds which can react with free radicals to protect against tissue and cell damage caused by reactive oxygen. There are no studies in literature on the association between autosomal recessive non-syndromic hearing loss(ARNSHL) including GJB2 and non-GJB2 mutations and thiol-disulphide balance. In this study, we aim to assess whether thiol-disulphide balance is disrupted in patients with ARNSHL. METHODS Thirty-one ARNSHL patients and thirty-one healthy controls were included in this study. Patients whose parents were first degree cousins and who had at least two congenital hearing loss in the same family were included in the study. Audiological tests included air - bone pure tone audiometry and auditory brain stem response. GJB2 gene analysis was performed using sanger sequence method. Tests of thiol/disulphide homeostasis were conducted using the automated spectrophotometric method. We first investigated whether there was a significant difference between ARNSHL patients and healthy controls. Then, in order to determine the differential effect of the GJB2 gene mutations and non-GJB2 gene mutations on the thiol-disulphide balance, subjects were divided into three groups: Group 1 included patients with GJB2 mutations; Group 2 included patients with non-GJB2 mutations; Group 3 included healthy subjects. RESULTS Patients with ARNSHL had significantly higher native thiol (411.6 ± 54.3 μmol/l vs. 368.0 ± 64.3 μmol/l, p = 0.006), total thiol levels (440.3 ± 56.2 μmol/l vs. 402.4 ± 65.9 μmol/l, p = 0.018), and lower disulphide levels (14.3 ± 5.7 μmol/l) vs. (17.1 ± 4.9 μmol/l), (p = 0.043) compared to the control group. Moreover, disulphide /native thiol (p < 0.001) and disulphide/total thiol (p < 0.001) were also detected lower in the ARNSHL group compared to the control group. Thiol-disulphide hemostasis parameters between all three groups showed that the native thiol and total thiol were increased in the Group 1 and Group 2. The disulphide levels decreased in Group 1 and 2, although not statistically significant. CONCLUSION It was shown that thiol levels increased and disulphide levels decreased in patients with autosomal recessive non-syndromic hearing loss. It also may suggest that there is a reverse association between ARNSHL and oxidative stress. Further studies are needed on whether or not ARNSHL cause oxidative stress limited to the inner ear and cochlea.
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Affiliation(s)
- Burhan Balta
- Department of Medical Genetics, Kayseri Training and Research Hospital, Kayseri, Turkey.
| | - Ramazan Gundogdu
- Department of Otorhinolaryngology, Kayseri Training and Research Hospital, Kayseri, Turkey.
| | - Murat Erdogan
- Department of Medical Genetics, Kayseri Training and Research Hospital, Kayseri, Turkey.
| | - Murat Alisik
- Department of Biochemistry, Yıldırım Beyazıd University, Ankara, Turkey.
| | - Aslihan Kiraz
- Department of Medical Genetics, Kayseri Training and Research Hospital, Kayseri, Turkey.
| | - Ibrahim Ozcan
- Department of Otorhinolaryngology, Kayseri Training and Research Hospital, Kayseri, Turkey.
| | - Ozcan Erel
- Department of Biochemistry, Yıldırım Beyazıd University, Ankara, Turkey.
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25
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Kabagambe EK, Lipworth L, Labadie RF, Hood LJ, Francis DO. Erythrocyte folate, serum vitamin B12, and hearing loss in the 2003-2004 National Health And Nutrition Examination Survey (NHANES). Eur J Clin Nutr 2018; 72:720-727. [PMID: 29379142 PMCID: PMC5948125 DOI: 10.1038/s41430-018-0101-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 12/04/2017] [Accepted: 12/05/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND/OBJECTIVES Studies based on food frequency questionnaires suggest that folate and vitamin B12 intake could protect against hearing loss. We investigated whether erythrocyte folate and serum vitamin B12 levels are independently associated with hearing loss in humans. SUBJECTS/METHODS Participants in the 2003-2004 US National Health and Nutrition Examination Survey who had data on hearing, folate, and vitamin B12 levels were included. Pure-tone average (PTA) at 0.5, 1.0, 2.0, and 4.0 kHz was computed for each ear. We used weighted logistic regression to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for the relation between quartiles of folate and vitamin B12, and hearing loss (present if PTA > 25 dB in either ear and absent if PTA ≤ 25 dB in both ears). RESULTS Participants (n = 1149) were 20-69 (mean 42) years old and 16.4% had hearing loss in at least one ear. Our data suggest a U-shaped relationship between folate and hearing loss. Compared to the 1st quartile, the ORs (95% CIs) for hearing loss were 0.87 (0.49-1.53), 0.70 (0.49-1.00), and 1.08 (0.61-1.94) for the 2nd, 3rd, and 4th quartile of erythrocyte folate in analyses adjusted for age, sex, vitamin B12, smoking, alcohol use, body mass index, race/ethnicity, exposure to noise, income, and education. Although we observed inverse associations between vitamin B12 and hearing loss, the associations were not statistically significant (P > 0.05). CONCLUSIONS Our data show a U-shaped relationship between erythrocyte folate levels and hearing loss, suggesting a need to evaluate whether optimizing blood folate levels could prevent hearing loss.
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Affiliation(s)
- Edmond K Kabagambe
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.
- Department of Otolaryngology, Vanderbilt University Medical Center, Nashville, TN, USA.
| | - Loren Lipworth
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Robert F Labadie
- Department of Otolaryngology, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Linda J Hood
- Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
| | - David O Francis
- Department of Otolaryngology, Vanderbilt University Medical Center, Nashville, TN, USA
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26
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Jeremic J, Nikolic Turnic T, Zivkovic V, Jeremic N, Milosavljevic I, Srejovic I, Obrenovic R, Jancic S, Rakocevic M, Matic S, Djuric D, Jakovljevic V. Vitamin B complex mitigates cardiac dysfunction in high-methionine diet-induced hyperhomocysteinemia. Clin Exp Pharmacol Physiol 2018; 45:683-693. [PMID: 29509296 DOI: 10.1111/1440-1681.12930] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 02/20/2018] [Accepted: 02/22/2018] [Indexed: 12/18/2022]
Abstract
This research is designed to test the hypothesis that elevated homocysteine (Hcy) levels in vivo, caused by a deficit in vitamin B complex, promote changes in cardiac function and redox status that lead to heart failure. In order to conduct the study, we used adult male Wistar albino rats (n = 30; 4 weeks old; 100 ± 15 g body weight). Hyperhomocysteinaemia (HHcy) in these animals was achieved by dietary manipulation. For 4 weeks, the animals were fed with a standard rodent chow (control, CF), a diet enriched in methionine with no deficiency in B vitamins (i.e., folic acid, B6 and B12) (HMNV) or a diet enriched in methionine and deficient in B vitamins (HMLV). After 28 days of dietary manipulation, all animals were killed. The rat hearts were isolated and retrogradely perfused according to the Langendorff technique at a gradually increasing perfusion pressure. We found a negative correlation between elevated serum Hcy and total body and heart weight. The maximum rate of left ventricular pressure development was significantly increased in the HMNV group compared with in the other groups. Systolic left ventricular pressure was significantly changed in all groups. HHcy induces remodelling of the cardiac tissues, as moderate HHcy is associated with more prominent interstitial and perivascular fibrosis. Our results suggest that a high methionine diet without vitamin B complex causes profound negative effects associated with HHcy.
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Affiliation(s)
- Jovana Jeremic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Tamara Nikolic Turnic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Vladimir Zivkovic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Nevena Jeremic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Isidora Milosavljevic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Ivan Srejovic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Radmila Obrenovic
- Institute for Medical Biochemistry, Clinical Centre of Serbia, Belgrade, Serbia
| | - Snezana Jancic
- Department of Pathology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Milena Rakocevic
- Department of Pathology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Stevan Matic
- Department of Pathology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Dragan Djuric
- Institute of Medical Physiology "Richard Burian", School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Vladimir Jakovljevic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia.,Department of Human Pathology, 1st Moscow State Medical, University IM Sechenov, Moscow, Russian Federation
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27
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Manche SK, Jangala M, Dudekula D, Koralla M, Akka J. Polymorphisms in folate metabolism genes are associated with susceptibility to presbycusis. Life Sci 2018; 196:77-83. [DOI: 10.1016/j.lfs.2018.01.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 01/04/2018] [Accepted: 01/15/2018] [Indexed: 12/14/2022]
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28
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Rodríguez-de la Rosa L, Lassaletta L, Calvino M, Murillo-Cuesta S, Varela-Nieto I. The Role of Insulin-Like Growth Factor 1 in the Progression of Age-Related Hearing Loss. Front Aging Neurosci 2017; 9:411. [PMID: 29311900 PMCID: PMC5733003 DOI: 10.3389/fnagi.2017.00411] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 11/27/2017] [Indexed: 12/21/2022] Open
Abstract
Aging is associated with impairment of sensorial functions and with the onset of neurodegenerative diseases. As pari passu circulating insulin-like growth factor 1 (IGF-1) bioavailability progressively decreases, we see a direct correlation with sensory impairment and cognitive performance in older humans. Age-related sensory loss is typically caused by the irreversible death of highly differentiated neurons and sensory receptor cells. Among sensory deficits, age-related hearing loss (ARHL), also named presbycusis, affects one third of the population over 65 years of age and is a major factor in the progression of cognitive problems in the elderly. The genetic and molecular bases of ARHL are largely unknown and only a few genes related to susceptibility to oxidative stress, excitotoxicity, and cell death have been identified. IGF-1 is known to be a neuroprotective agent that maintains cellular metabolism, activates growth, proliferation and differentiation, and limits cell death. Inborn IGF-1 deficiency leads to profound sensorineural hearing loss both in humans and mice. IGF-1 haploinsufficiency has also been shown to correlate with ARHL. There is not much information available on the effect of IGF-1 deficiency on other human sensory systems, but experimental models show a long-term impact on the retina. A secondary action of IGF-1 is the control of oxidative stress and inflammation, thus helping to resolve damage situations, acute or made chronic by aging. Here we will review the primary actions of IGF-1 in the auditory system and the underlying molecular mechanisms.
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Affiliation(s)
- Lourdes Rodríguez-de la Rosa
- “Alberto Sols” Biomedical Research Institute CSIC-UAM, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
- Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain
| | - Luis Lassaletta
- “Alberto Sols” Biomedical Research Institute CSIC-UAM, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
- Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain
- Otorhinolaryngology Department, Hospital La Paz, Madrid, Spain
| | - Miryam Calvino
- Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain
- Otorhinolaryngology Department, Hospital La Paz, Madrid, Spain
| | - Silvia Murillo-Cuesta
- “Alberto Sols” Biomedical Research Institute CSIC-UAM, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
- Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain
| | - Isabel Varela-Nieto
- “Alberto Sols” Biomedical Research Institute CSIC-UAM, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
- Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain
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