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Walters RK, Durrant FG, Nguyen SA, Meyer TA, Lambert PR. The Placebo Effect on Tinnitus: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Otol Neurotol 2024; 45:e263-e270. [PMID: 38361332 DOI: 10.1097/mao.0000000000004139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
OBJECTIVE To quantify the placebo effect in randomized clinical trials treating tinnitus with oral or intratympanic placebo treatment. DATA SOURCES CINAHL, PubMed, and Scopus were searched for articles from conception to October 2022. MESH and key terms such as "tinnitus," "placebo," and "medication" were used to find randomized, placebo-controlled trials. The search was limited to articles in English. METHODS Randomized controlled trials with adult subjects evaluating tinnitus pretreatment and posttreatment with an oral or intratympanic medication versus a placebo arm were included. Crossover studies, studies involving middle/inner ear operations or devices, and studies that exclusively included nonidiopathic etiologies of tinnitus were excluded. Mean tinnitus symptom survey scores for the Tinnitus Handicap Inventory (THI), Tinnitus Severity Index, Tinnitus Functional Index, Tinnitus Handicap Questionnaire, and Visual Analog Scales for tinnitus Intensity/Loudness (VAS-L), Annoyance (VAS-An), and Awareness (VAS-Aw) were extracted for both placebo and experimental groups. RESULTS 953 studies were screened with 23 studies being included in the final analysis. Meta-analysis of mean difference (MD) was calculated using RevMan 5.4. MD between pretreatment and posttreatment THI scores of the placebo arms was 5.6 (95% confidence interval, 3.3-8.0; p < 0.001). MD between pretreatment and posttreatment VAS scores of the placebo groups for Loudness, Annoyance, and Awareness were 0.8 (0.0 to 1.6, p = 0.05), 0.2 (-0.2 to 0.5, p = 0.34), and 0.3 (-0.0 to 0.7, p = 0.08), respectively. CONCLUSIONS Placebo treatment has shown effectiveness in improving patient-reported evaluations of tinnitus when using some standardized metrics such as THI and VAS-L; however, the improvement is not as substantial as nonplacebo treatment.
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Affiliation(s)
| | - Frederick G Durrant
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Shaun A Nguyen
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Ted A Meyer
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Paul R Lambert
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina
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Balatsouras DG, Papitsi I, Koukoutsis G, Katotomichelakis M. The effect of MemoVigor 2 on recent-onset idiopathic tinnitus: a randomized double-blind placebo-controlled clinical trial. Front Pharmacol 2024; 15:1252343. [PMID: 38327985 PMCID: PMC10847223 DOI: 10.3389/fphar.2024.1252343] [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: 07/17/2023] [Accepted: 01/10/2024] [Indexed: 02/09/2024] Open
Abstract
Background: Tinnitus is a common symptom associated with the conscious perception of sound in the absence of a corresponding external or internal sound source, which can severely impact quality of life. Because of the current limited understanding of the precise pathophysiological mechanism of idiopathic tinnitus, no curable treatment has been attained yet. A food supplement trading as MemoVigor 2, which contains a combination of therapeutic ingredients with mainly antioxidant activity, has been used in the treatment of tinnitus. The objective of our study was to evaluate the effectiveness of MemoVigor 2 in the treatment of recent-onset idiopathic tinnitus. Methods: In a prospective single-centre randomized, double-blind, placebo-controlled clinical trial we studied 204 patients with idiopathic tinnitus divided into two groups: 104 patients who received MemoVigor 2 and 100 patients treated with placebo. To evaluate changes in tinnitus we used (1) audiometry/tympanometry; (2) specific measures of tinnitus perception, including tinnitus pitch, loudness at tinnitus pitch, loudness at 1 kHz, minimum masking level, and residual inhibition; (3) questionnaires of tinnitus handicap inventory, mini tinnitus questionnaire and patients' global impression of change. All patients underwent this test battery at the beginning of the study and in a repeat post-3-month session. Results: All tinnitus measures, including pitch, loudness, minimum masking level and residual inhibition improved significantly in the intervention group. Most of these measures improved in the placebo group too, but in a lesser degree. All questionnaire scores diminished significantly in both groups, but the degree of decrease was greater in the intervention group. The participants' tinnitus outcome reported after treatment using the patients' global impression of change score differed significantly between the two groups, with greater improvement observed in the intervention group. Conclusion: We found that the use of MemoVigor 2 improved recent-onset tinnitus, as proved by a set of tests performed for its evaluation, including audiometric measures, specific measures of tinnitus perception and tinnitus questionnaires. Tinnitus in the placebo group improved too, but to a lesser degree. Clinical Trial Registration: isrctn.com, Identifier ISRCTN16025480.
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Affiliation(s)
| | - Isidora Papitsi
- Department of Otorhinolaryngology, Tzaneio General Hospital, Piraeus, Greece
| | - George Koukoutsis
- Department of Otorhinolaryngology, Tzaneio General Hospital, Piraeus, Greece
| | - Michael Katotomichelakis
- Department of Otorhinolaryngology, Medical School, Democritus University of Thrace, Komotini, Greece
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Sacchetto L, Monzani D, Apa E, Lovato A, Caragli V, Gherpelli C, Palma S, Genovese E, Nocini R. The Effect of Alpha-Lipoic Acid in the Treatment of Chronic Subjective Tinnitus through the Tinnitus Handicap Inventory Scores. Audiol Res 2023; 13:484-494. [PMID: 37489379 PMCID: PMC10366923 DOI: 10.3390/audiolres13040043] [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: 02/17/2023] [Revised: 06/26/2023] [Accepted: 07/03/2023] [Indexed: 07/26/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Tinnitus affects millions of adults. Many therapies, including complementary and alternative medicine and tinnitus retraining therapies, have been trialed, but an effective option, particularly for chronic subjective tinnitus (CTS), is still lacking. MATERIALS AND METHODS This study investigated the effects of alpha-lipoic acid (600 mg. per day for two months) on two groups of patients using a questionnaire. One group (A) was affected by tinnitus associated with likely cochlear dysfunction and metabolic syndrome, and the other (B) was composed of subjects with acoustic nerve lesions. All the patients were asked to complete the Italian version of the tinnitus handicap inventory (THI) to determine the overall degree of perceived annoyance at the beginning and end of therapy. Pure tone averages for speech frequencies and for high frequencies were computed, and psychoacoustic pitch and loudness matches were determined for each subject before and after treatment. RESULTS The pure tone audiometry, pitch, loudness, and THI scores of both groups were reported. In group A, statistically significant differences were observed for the "functional" and "emotional" subscales. The total score of THI and the loudness of tinnitus were also significantly reduced. No statistically significant differences were observed in group B. CONCLUSIONS These findings suggest a possible contribution of the antioxidant effect to the organ of Corti in subjects with metabolic syndrome and CST.
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Affiliation(s)
- Luca Sacchetto
- Otolaryngology-Head and Neck Surgery Department, University Hospital of Verona, 37126 Verona, Italy
| | - Daniele Monzani
- Otolaryngology-Head and Neck Surgery Department, University Hospital of Verona, 37126 Verona, Italy
| | - Enrico Apa
- Otolaryngology and Audiology Unit, University of Modena and Reggio Emilia, 41100 Modena, Italy
| | - Andrea Lovato
- Otolaryngology Unit, Vicenza Hospital, 36100 Vicenza, Italy
| | - Valeria Caragli
- Otolaryngology and Audiology Unit, University of Modena and Reggio Emilia, 41100 Modena, Italy
| | - Chiara Gherpelli
- Otolaryngology and Audiology Unit, University of Modena and Reggio Emilia, 41100 Modena, Italy
| | - Silvia Palma
- Audiology, Primary Care Department, AUSL Modena, 41121 Modena, Italy
| | - Elisabetta Genovese
- Otolaryngology and Audiology Unit, University of Modena and Reggio Emilia, 41100 Modena, Italy
| | - Riccardo Nocini
- Otolaryngology-Head and Neck Surgery Department, University Hospital of Verona, 37126 Verona, Italy
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Liu D, Hu Y, Wang D, Han H, Wang Y, Wang X, Zhou Z, Ma X, Dong Y. Herbal medicines in the treatment of tinnitus: An updated review. Front Pharmacol 2023; 13:1037528. [PMID: 36686691 PMCID: PMC9847569 DOI: 10.3389/fphar.2022.1037528] [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: 09/06/2022] [Accepted: 12/13/2022] [Indexed: 01/06/2023] Open
Abstract
Tinnitus is perception of sound in the absence of an apparent external acoustic stimulus. The condition is prevalent in adults, especially the elderly (≥65 years), and may be associated with cognitive function decline and significantly impacts on the quality of life, heralding difficulties in managing this challenging disorder. Interventions for tinnitus have been varied. However, drugs have not yet been approved for the treatment of tinnitus and there is no pharmacotherapy recommended by existing guidelines. Still, herbal medicines are used for the treatment of tinnitus in many countries, especially Gingko (G.) biloba. In the current updated literature review, we evaluated the efficacy of herbal medicines in the treatment of tinnitus by reviewing the evidence of relevant randomized controlled trials. The authors also highlight some of the issues in clinical trials of herbal medicines given that currently available evidence on herbal medicines for tinnitus is overall of insufficient quality and the conclusions from existing trials are conflicting. Nevertheless, there is a clear and urgent need for safe and effective pharmacotherapy of tinnitus.
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Affiliation(s)
| | | | | | | | | | | | | | - Xiulan Ma
- *Correspondence: Yaodong Dong, ; Xiulan Ma,
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Abstract
BACKGROUND Tinnitus is a symptom defined as the perception of sound in the absence of an external source. In England alone there are an estimated ¾ million general practice consultations every year where the primary complaint is tinnitus, equating to a major burden on healthcare services. Clinical management strategies include education and advice, relaxation therapy, tinnitus retraining therapy (TRT), cognitive behavioural therapy (CBT), sound enrichment using ear-level sound generators or hearing aids, and drug therapies to manage co-morbid symptoms such as insomnia, anxiety or depression. OBJECTIVES: To assess the effects of Ginkgo biloba for tinnitus in adults and children. SEARCH METHODS The Cochrane ENT Information Specialist searched the Cochrane ENT Register; CENTRAL (2022, Issue 6); Ovid MEDLINE; Ovid Embase; CINAHL; Web of Science; ClinicalTrials.gov; ICTRP and additional sources for published and unpublished trials. The date of the search was 7 June 2022. SELECTION CRITERIA Randomised controlled trials (RCTs) recruiting adults and children with acute or chronic subjective tinnitus. We included studies where the intervention involved Ginkgo biloba and this was compared to placebo, no intervention, or education and information. Concurrent use of other medication or other treatment was acceptable if used equally in each group. Where an additional intervention was used equally in both groups, we analysed this as a separate comparison. The review included all courses of Ginkgo biloba, regardless of dose regimens or formulations, and for any duration of treatment. DATA COLLECTION AND ANALYSIS We used standard Cochrane methods. Our primary outcomes were tinnitus symptom severity measured as a global score on a multi-item tinnitus questionnaire and serious adverse effects (bleeding, seizures). Our secondary outcomes were tinnitus loudness (change in subjective perception), tinnitus intrusiveness, generalised depression, generalised anxiety, health-related quality of life and other adverse effects (gastrointestinal upset, headache, allergic reaction). We used GRADE to assess the certainty of the evidence for each outcome. MAIN RESULTS This review included 12 studies (with a total of 1915 participants). Eleven studies compared the effects of Ginkgo biloba with placebo and one study compared the effects of Ginkgo biloba with hearing aids to hearing aids alone. All included studies were parallel-group RCTs. In general, risk of bias was high or unclear due to selection bias and poor reporting of allocation concealment and blinding of participants, personnel and outcome assessments. Due to heterogeneity in the outcomes measured and measurement methods used, only limited data pooling was possible. Ginkgo biloba versus placebo When we pooled data from two studies for the primary outcome tinnitus symptom severity, we found that Ginkgo biloba may have little to no effect (Tinnitus Handicap Inventory scores) at three to six months compared to placebo, but the evidence is very uncertain (mean difference (MD) -1.35 (scale 0 to 100), 95% confidence interval (CI) -8.26 to 5.55; 2 studies; 85 participants) (very low-certainty). Ginkgo biloba may result in little to no difference in the risk of bleeding or seizures, with no serious adverse effects reported in either group (4 studies; 1154 participants; low-certainty). For the secondary outcomes, one study found that there may be little to no difference between the effects of Ginkgo biloba and placebo on tinnitus loudness measured with audiometric loudness matching at 12 weeks, but the evidence is very uncertain (MD -4.00 (scale -10 to 140 dB), 95% CI -13.33 to 5.33; 1 study; 73 participants) (very low-certainty). One study found that there may be little to no difference between the effects of Ginkgo biloba and placebo on health-related quality of life measured with the Glasgow Health Status Inventory at three months (MD -0.58 (scale 0 to 100), 95% CI -4.67 to 3.51; 1 study; 60 participants) (low-certainty). Ginkgo biloba may not increase the frequency of other adverse effects (gastrointestinal upset, headache, allergic reaction) at three months compared to placebo (risk ratio 0.91, 95% CI 0.52 to 1.60; 4 studies; 1175 participants) (low-certainty). None of the studies reported the other secondary outcomes of tinnitus intrusiveness or changes in depressive symptoms or depression, anxiety symptoms or generalised anxiety. Gingko biloba with concurrent intervention versus concurrent intervention only One study compared Ginkgo biloba with hearing aids to hearing aids only. It assessed the mean difference in the change in Tinnitus Handicap Inventory scores and tinnitus loudness using a 10-point visual analogue scale (VAS) at three months. The study did not report adverse effects, tinnitus intrusiveness, changes in depressive symptoms or depression, anxiety symptoms or generalised anxiety, or health-related quality of life. This was a single, very small study (22 participants) and for all outcomes the certainty of the evidence was very low. We were unable to draw meaningful conclusions from the numerical results. AUTHORS' CONCLUSIONS There is uncertainty about the benefits and harms of Ginkgo biloba for the treatment of tinnitus when compared to placebo. We were unable to draw meaningful conclusions regarding the benefits and harms of Ginkgo biloba when used with concurrent intervention (hearing aids). The certainty of the evidence for the reported outcomes, assessed using GRADE, ranged from low to very low. Future research into the effectiveness of Ginkgo biloba in patients with tinnitus should use rigorous methodology. Randomisation and blinding should be of the highest quality, given the subjective nature of tinnitus and the strong likelihood of a placebo response. The CONSORT statement should be used in the design and reporting of future studies. We also recommend the use of validated, patient-centred outcome measures for research in the field of tinnitus.
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Affiliation(s)
- Magdalena Sereda
- NIHR Nottingham Biomedical Research Centre, Hearing Sciences, Mental Health and Clinical Neurosciences, School of Medicine, University of Nottingham, Nottingham, UK
| | - Jun Xia
- Nottingham China Health Institute, The University of Nottingham Ningbo, Ningbo, China
| | - Polly Scutt
- NIHR Nottingham Biomedical Research Centre, Hearing Sciences, Mental Health and Clinical Neurosciences, School of Medicine, University of Nottingham, Nottingham, UK
| | | | - Amr El Refaie
- Department of Speech and Hearing Sciences, University College Cork, Cork, Ireland
| | - Derek J Hoare
- NIHR Nottingham Biomedical Research Centre, Hearing Sciences, Mental Health and Clinical Neurosciences, School of Medicine, University of Nottingham, Nottingham, UK
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Oppitz SJ, Garcia MV, Bruno RS, Zemolin CM, Baptista BO, Turra BO, Barbisan F, da Cruz IBM, da Silveira AF. Supplementation with açaí (Euterpe Oleracea Martius) for the treatment of chronic tinnitus: effects on perception, anxiety levels and oxidative metabolism biomarkers. Codas 2022; 34:e20210076. [PMID: 35107519 PMCID: PMC9886123 DOI: 10.1590/2317-1782/20212021076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 09/21/2021] [Indexed: 02/03/2023] Open
Abstract
PURPOSE To investigate the effects of antioxidant supplementation with açaí extract on the discomfort with chronic tinnitus and the relationship with the levels of anxiety and oxidative metabolism, not excluding the overlap of diseases. METHODS Randomized, placebo-controlled clinical trial. 30 individuals participated, with an average of 50.5 years, 14 males and 16 females, with normal hearing thresholds or sensorineural hearing loss up to mild degree, divided into two groups: Placebo Group (without active) and, Açaí Group (100mg of açaí extract). The following procedures were applied before and after three months of treatments: Tinnitus Handicap Inventory (THI), Beck's Anxiety Inventory (BAI) and blood samples for evaluation of oxidative stress biomarkers (Lipid Peroxidation and Protein Carbonylation). RESULTS There was a reduction in the discomfort of tinnitus for the açaí group verified through THI (p = 0.006). Significant differences were found in the score of common symptoms for anxiety disorders in the placebo group (p = 0.016), however, the same was not observed for oxidative metabolism biomarkers, although there was a decrease in post-treatment values for all groups. CONCLUSION Oral antioxidant supplementation, with açaí extract, showed favorable effects on tinnitus, reducing discomfort with the symptom, regardless of the underlying etiology, and can be considered a treatment modality. However, the effect of this supplementation on anxiety symptoms and oxidative stress biomarkers needs further investigation.
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Affiliation(s)
- Sheila Jacques Oppitz
- Programa de Pós-graduação em Distúrbios da Comunicação Humana, Universidade Federal de Santa Maria – UFSM - Santa Maria (RS), Brasil.
| | - Michele Vargas Garcia
- Programa de Pós-graduação em Distúrbios da Comunicação Humana, Universidade Federal de Santa Maria – UFSM - Santa Maria (RS), Brasil.
| | - Rúbia Soares Bruno
- Programa de Pós-graduação em Distúrbios da Comunicação Humana, Universidade Federal de Santa Maria – UFSM - Santa Maria (RS), Brasil.
| | - Cleide Monteiro Zemolin
- Programa de Pós-graduação em Gerontologia, Universidade Federal de Santa Maria – UFSM - Santa Maria (RS), Brasil.
| | - Bruna Olegário Baptista
- Hospital Universitário de Santa Maria, Universidade Federal de Santa Maria – UFSM - Santa Maria (RS), Brasil.
| | - Bárbara Osmarin Turra
- Departamento de Morfologia, Universidade Federal de Santa Maria – UFSM - Santa Maria (RS), Brasil.
| | - Fernanda Barbisan
- Programa de Pós-graduação em Gerontologia, Universidade Federal de Santa Maria – UFSM - Santa Maria (RS), Brasil.
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Chen JJ, Chen YW, Zeng BY, Hung CM, Zeng BS, Stubbs B, Carvalho AF, Thompson T, Roerecke M, Su KP, Tu YK, Wu YC, Smith L, Chen TY, Lin PY, Liang CS, Hsu CW, Hsu SP, Kuo HC, Wu MK, Tseng PT. Efficacy of pharmacologic treatment in tinnitus patients without specific or treatable origin: A network meta-analysis of randomised controlled trials. EClinicalMedicine 2021; 39:101080. [PMID: 34611615 PMCID: PMC8478678 DOI: 10.1016/j.eclinm.2021.101080] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Although tinnitus has a prevalence between 20 and 42.8%, the currently recommended management for tinnitus, such as tinnitus support and psychologic therapies, are relatively time-consuming and expensive. Several new pharmacologic treatments designed for tinnitus patients without specific origin had been developed but their efficacy remains unclear. METHODS The current Network Meta-Analysis (NMA) of randomised controlled trials (RCTs) was conducted to evaluate the efficacy of different pharmacologic treatments for tinnitus management in tinnitus patients without specific or treatable origin (i.e. primary tinnitus). Databases were searched from inception to April 5th, 2021. All network meta-analytic procedures were conducted under the frequentist model. We calculated the effect size of outcomes with different rating scales with standardized mean difference. PROSPERO registration: CRD42020177742. FINDINGS Overall, 36 RCTs were included with 2,761 participants. The main results revealed that pharmacologic interventions with brain-acting effect (for example, amitriptyline, acamprosate, and gabapentin) and those with anti-inflammation/anti-oxidant effect (for example, intra-tympanic dexamethasone injection plus oral melatonin) were associated with superior improvement in tinnitus severity and response rate compared to placebo/control. Oral amitriptyline were associated with the highest improvement in tinnitus severity and the fourth highest response rate. None of the investigated interventions was associated with different changes in quality of life compared to placebo/control. All the investigated treatments were associated with similar drop-out rate to placebo/control. INTERPRETATION The current NMA suggests a potential role for treatments with brain-acting effect (for example, amitriptyline, acamprosate, and gabapentin) or anti-inflammation/anti-oxidant effect (for example, intra-tympanic dexamethasone injection plus oral melatonin) as the preferable effective treatments for tinnitus without specific or treatable origin. FUNDING none.
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Key Words
- 95%CIs, 95% confidence intervals
- ACA, Acamprosate
- ALP, Alprazolam
- ALVitC, Alpha-lipoic acid plus vitamin C
- AMI, Amitriptyline
- Bet, Betahistine
- CHL, Chlorpheniramine
- CLES, Common language effect size
- CLO, Clonazepam
- Car, Carbamazepine
- ClD, Clonazepam plus deanxit
- DEX, Intra-tympanic dexamethasone injection
- DeGin, Intra-tympanic dexamethasone injection plus ginkgo biloba
- DeLid, Intra-tympanic dexamethasone injection plus lidocaine
- DeMel, Intra-tympanic dexamethasone injection plus melatonin
- GABA, gamma-Aminobutyric acid
- GRADE, Grading of Recommendations Assessment, Development and Evaluation
- GaLid, gabapentin plus intradermal lidocaine injection
- Gab, gabapentin
- Gin, ginkgo biloba
- KRG, Korean red ginseng
- MIS, Misoprostol
- MeSul, Melatonin and sulodexide
- Mel, Melatonin alone
- Met, Intra-tympanic methylprednisolone injection
- NER, Neramexane
- NMA, Network meta-analysis
- NOR, Nortriptyline
- OXC, Oxcarbazepine
- Ozone, Ozone exposure
- PAR, Paroxetine
- PIR, Piribedil
- PLA, placebo
- PRA, Pramipexole
- PRISMA, Preferred Reporting Items for Systematic Reviews and Meta-Analyses
- PaVitE, papaverine hydrochloride plus vitamin E
- Pen, Pentoxifylline
- RCT, Randomised controlled trials
- RR, Rate ratio
- SER, Sertraline
- SMD, Standardized mean difference
- SUCRA, Surface under the cumulative ranking curve
- THI, Tinnitus handicap inventory
- TRA, Trazodone
- TRI, Postaurical subcutaneous triamcinolone injection
- VAR, Vardenafil
- VAS, Visual analogue scale
- VES, Vestipitant
- VePar, Vestipitant and paroxetine
- Zinc, Zinc supplementation
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Affiliation(s)
- Jiann-Jy Chen
- Department of Otorhinolaryngology, E-Da Cancer Hospital, Kaohsiung, Taiwan
- Prospect Clinic for Otorhinolaryngology & Neurology, Kaohsiung City, Taiwan
| | - Yen-Wen Chen
- Prospect Clinic for Otorhinolaryngology & Neurology, Kaohsiung City, Taiwan
| | - Bing-Yan Zeng
- Department of Internal Medicine, E-Da Hospital, Kaohsiung, Taiwan
| | - Chao-Ming Hung
- Division of General Surgery, Department of Surgery, E-Da Cancer Hospital, Kaohsiung, Taiwan
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan
| | - Bing-Syuan Zeng
- Department of Internal Medicine, E-Da Hospital, Kaohsiung, Taiwan
| | - Brendon Stubbs
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
- Physiotherapy Department, South London and Maudsley NHS Foundation Trust, London, United Kingdom
| | - Andre F. Carvalho
- IMPACT (Innovation in Mental and Physical Health and Clinical Treatment) Strategic Research Centre, School of Medicine, Barwon Health, Deakin University, Geelong, VIC, 3220, Australia
| | - Trevor Thompson
- Centre for Chronic Illness and Ageing, University of Greenwich, London, UK
| | - Michael Roerecke
- Institute for Mental Health Policy Research, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), Dalla Lana School of Public Health (DLSPH), University of Toronto, Abbreviation:
| | - Kuan-Pin Su
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
- Department of Psychiatry & Mind-Body Interface Laboratory (MBI-Lab), China Medical University Hospital, Taichung, Taiwan
- College of Medicine, China Medical University, Taichung, Taiwan
- An-Nan Hospital, China Medical University, Tainan, Taiwan
| | - Yu-Kang Tu
- Institute of Epidemiology & Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
- Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Yi-Cheng Wu
- Department of Sports Medicine, Landseed International Hospital, Taoyuan, Taiwan
| | - Lee Smith
- The Cambridge Center for Sport and Exercise Sciences, Anglia Ruskin University, Cambridge, United Kingdom
| | - Tien-Yu Chen
- Department of Psychiatry, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei, Taiwan
- Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Pao-Yen Lin
- Department of Psychiatry, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
- Institute for Translational Research in Biomedical Sciences, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chih-Sung Liang
- Department of Psychiatry, Beitou branch, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, Taipei, Taiwan
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Chih-Wei Hsu
- Department of Psychiatry, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Shih-Pin Hsu
- Department of Neurology, E-Da hospital/School of medicine, I-Shou university, Kaohsiung, Taiwan
| | - Hung-Chang Kuo
- Department of Neurology, E-Da hospital/School of medicine, I-Shou university, Kaohsiung, Taiwan
| | - Ming-Kung Wu
- Department of Psychiatry, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
- Corresponding author.
| | - Ping-Tao Tseng
- Prospect Clinic for Otorhinolaryngology & Neurology, Kaohsiung City, Taiwan
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
- Department of Psychology, College of Medical and Health Science, Asia University, Taichung, Taiwan
- Corresponding author.
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Wang K, Tang D, Ma J, Sun S. Auditory Neural Plasticity in Tinnitus Mechanisms and Management. Neural Plast 2020; 2020:7438461. [PMID: 32684922 PMCID: PMC7349625 DOI: 10.1155/2020/7438461] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 06/15/2020] [Accepted: 06/20/2020] [Indexed: 11/24/2022] Open
Abstract
Tinnitus, which is the perception of sound in the absence of a corresponding external acoustic stimulus, including change of hearing and neural plasticity, has become an increasingly important ailment affecting the daily life of a considerable proportion of the population and causing significant burdens for both the affected individuals and society as a whole. Here, we briefly review the epidemiology and classification of tinnitus, and the currently available treatments are discussed in terms of the available evidence for their mechanisms and efficacy. The conclusion drawn from the available evidence is that there is no specific medication for tinnitus treatment at present, and tinnitus management might provide better solutions. Therapeutic interventions for tinnitus should be based on a comprehensive understanding of the etiology and features of individual cases of tinnitus, and more high quality and large-scale research studies are urgently needed to develop more efficacious medications.
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Affiliation(s)
- Kunkun Wang
- ENT institute and Otorhinolaryngology Department of Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai 200031, China
- NHC Key Laboratory of Hearing Medicine, Fudan University, Shanghai 200031, China
| | - Dongmei Tang
- ENT institute and Otorhinolaryngology Department of Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai 200031, China
- NHC Key Laboratory of Hearing Medicine, Fudan University, Shanghai 200031, China
| | - Jiaoyao Ma
- ENT institute and Otorhinolaryngology Department of Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai 200031, China
- NHC Key Laboratory of Hearing Medicine, Fudan University, Shanghai 200031, China
| | - Shan Sun
- ENT institute and Otorhinolaryngology Department of Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai 200031, China
- NHC Key Laboratory of Hearing Medicine, Fudan University, Shanghai 200031, China
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9
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Luetzenberg FS, Babu S, Seidman MD. Alternative Treatments of Tinnitus: Alternative Medicine. Otolaryngol Clin North Am 2020; 53:637-650. [PMID: 32362562 DOI: 10.1016/j.otc.2020.03.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
"Because Western medicine has remained largely unsuccessful at treating tinnitus symptoms, many physicians as well as patients have turned to alternative treatment options to decrease patients' suffering and improve their quality of life. Although research in complementary/integrative medicine continues to be scarce and inconclusive, studies are pointing toward the positive effects of acupuncture, herbal remedies, dietary supplements, antioxidants, melatonin, and hypnosis on tinnitus. Although the efficacies of these treatments are inconsistent and may depend on a patient's unique circumstances, studies acknowledge that each treatment is worth trying in light of the potential benefits while being both noninvasive and well tolerated."
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Affiliation(s)
- Friederike S Luetzenberg
- University of Central Florida College of Medicine, 6850 Lake Nona Boulevard, Orlando, FL 32827, USA
| | - Seilesh Babu
- Department of Otology, Neurotology, & Skull Base Surgery, Michigan Ear Institute, Farmington Hills, MI 48334, USA; Ascension Macomb Otolaryngology Residency, 11800 East 12 Mile Road, Warren, MI 48093, USA; Department of Otolaryngology, Wayne State University, Detroit, MI, USA
| | - Michael D Seidman
- Otologic/Neurotologic/Skull Base Surgery; Wellness and Integrative Medicine; Advent Health (Celebration and South Campuses); Otolaryngology Head and Neck Surgery, University of Central Florida College of Medicine; AdventHealth Medical Group- Otolaryngology-Head and Neck Surgery, 410Celebration Place Suite 305, Celebration, FL 34747, USA.
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10
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Petridou AI, Zagora ET, Petridis P, Korres GS, Gazouli M, Xenelis I, Kyrodimos E, Kontothanasi G, Kaliora AC. The Effect of Antioxidant Supplementation in Patients with Tinnitus and Normal Hearing or Hearing Loss: A Randomized, Double-Blind, Placebo Controlled Trial. Nutrients 2019; 11:E3037. [PMID: 31842394 PMCID: PMC6950042 DOI: 10.3390/nu11123037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 11/27/2019] [Accepted: 12/03/2019] [Indexed: 01/08/2023] Open
Abstract
Tinnitus is the perception of sound in the absence of any external stimulus. Oxidative stress is possibly involved in its pathogenesis and a variety of antioxidant compounds have been studied as potential treatment approaches. The objective of the present study was to assess the effects of antioxidant supplementation in tinnitus patients. This is a randomized, double-blind, placebo-controlled clinical trial. Patients (N = 70) were randomly allocated to antioxidant supplementation (N = 35) or to placebo (N = 35) for a total of 3 months. Demographic, anthropometric, clinical, and nutritional data were collected. Serum total antioxidant capacity (TAC), oxidized LDL (oxLDL), and superoxide dismutase (SOD), tinnitus loudness, frequency, and minimum masking level (MML), and scores in Tinnitus Handicap Inventory questionnaire (THI), Tinnitus Functional Index (TFI), and Visual Analogue Scale (VAS) were evaluated at baseline and follow-up. Tinnitus loudness and MML significantly decreased from baseline to post measure (p < 0.001) only in the antioxidant group, the overall change being significantly different between the two groups post-intervention (p < 0.001). THI and VAS decreased only in the antioxidant group. Differences in changes in serum TAC, SOD, and oxLDL post-intervention were insignificant. In conclusion, antioxidant therapy seems to reduce the subjective discomfort and tinnitus intensity in tinnitus patients.
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Affiliation(s)
- Anna I. Petridou
- 1st ENT Department, School of Medicine, National and Kapodistrian University of Athens, Hippokration Hospital, 11527 Athens, Greece; (A.I.P.); (I.X.); (E.K.)
| | - Eleftheria T. Zagora
- ENT Department, General Hospital of Nikaia “Agios Panteleimon”, Nikaia, 18454 Athens, Greece; (E.T.Z.); (G.K.)
| | - Petros Petridis
- ENT Department, St. Johannes Hospital, 44137 Dortmund, Germany;
| | - George S. Korres
- 2nd ENT Department, School of Medicine, National and Kapodistrian University of Athens, Attikon Hospital, 12462 Chaidari, Greece;
| | - Maria Gazouli
- Department of Biology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | - Ioannis Xenelis
- 1st ENT Department, School of Medicine, National and Kapodistrian University of Athens, Hippokration Hospital, 11527 Athens, Greece; (A.I.P.); (I.X.); (E.K.)
| | - Efthymios Kyrodimos
- 1st ENT Department, School of Medicine, National and Kapodistrian University of Athens, Hippokration Hospital, 11527 Athens, Greece; (A.I.P.); (I.X.); (E.K.)
| | - Georgia Kontothanasi
- ENT Department, General Hospital of Nikaia “Agios Panteleimon”, Nikaia, 18454 Athens, Greece; (E.T.Z.); (G.K.)
| | - Andriana C. Kaliora
- Department of Dietetics and Nutritional Science, School of Health Science and Education, Harokopio University, 17671 Athens, Greece
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11
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Ekinci A, Kamasak K. Evaluation of serum prolidase enzyme activity and oxidative stress in patients with tinnitus. Braz J Otorhinolaryngol 2019; 86:405-410. [PMID: 30975591 PMCID: PMC9422714 DOI: 10.1016/j.bjorl.2019.01.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 01/06/2019] [Indexed: 11/29/2022] Open
Abstract
Introduction Tinnitus is defined as the perception of sound in the head or in the head in the absence of external sounds. The cause of tinnitus is still unknown. Objective We aimed to compare the serum levels of total oxidant status, total antioxidant status, serum prolidase enzyme activity and the oxidative stress index in patients with tinnitus to those of normal subjects. Methods Twenty five patients with tinnitus (mean age 34.3) and 25 healthy controls (mean age 37.2) were included in the study. Results Total oxidant status levels in the patient group were significantly higher than in the control group (p = 0.037). The mean total oxidant status value was 2.54 ± 0.95 mmoL/L in the patient group, and 2.06 ± 0.98 mmoL/L in the control group. The mean oxidative stress index level was 0.22 ± 0.10 AU in the patient group, while it was 0.17 ± 0.08 AU in the control group. Oxidative stress index was significantly higher in the patient group (0.026). There was no significant difference between the groups in terms of total antioxidant status values (p = 0.838). The mean serum prolidase enzyme activity level was 202.74 ± 33.56 U/L in the patient group and 175.46 ± 42.68 U/L in the control group. Serum prolidase enzyme activity levels in the patient group were significantly higher than in the control group (0.040). Conclusion We detected that the total oxidant status, oxidative stress index and serum prolidase enzyme activity levels were higher in patients with tinnitus when compared to the healthy controls. This finding suggests that oxidative stress index and serum prolidase enzyme activity may play a role in the etiopathogenesis of tinnitus.
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Affiliation(s)
- Adnan Ekinci
- Hitit University, Faculty of Medicine, Otorhinolaryngology Department, Çorum, Turkey.
| | - Kaan Kamasak
- Hitit University, Faculty of Medicine, Neurosurgery Department, Çorum, Turkey
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12
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Evaluation of the Spray Drying Conditions of Blueberry Juice-Maltodextrin on the Yield, Content, and Retention of Quercetin 3-d-Galactoside. Polymers (Basel) 2019; 11:polym11020312. [PMID: 30960300 PMCID: PMC6419557 DOI: 10.3390/polym11020312] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/06/2019] [Accepted: 02/08/2019] [Indexed: 12/14/2022] Open
Abstract
The influence of the processing conditions during the spray drying of mixtures of blueberry juice (BJ) and maltodextrin (MX) was determined quantitatively by the analysis of variance (ANOVA), and qualitatively by the surface response plots (SRP). The effect of two independent variables (inlet temperature, and MX concentration), and one categorical variable (type of MX), was determined on the yield (Y), content (Q), and retention (R) of the antioxidant quercetin 3-d-galactoside. From the ANOVA results, the concentration was the main variable affecting Y and Q, while temperature had a negligible effect, and the low molecular weight MXs exhibited a better response. The physicochemical characterization showed that the powder appearance and microstructure remained unaffected, but size and morphology of the particles varied with the processing conditions. This study established the optimal processing conditions for the spray drying of BJ-MX, and the application limits of the MXs based on the molecular weight distribution.
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13
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Hameed HM, Eleue AH, Al Mosawi AMT. The use of distortion product otoacoustic emissions (DPOAE) records to estimate effect of vitamin B complex on changing severity of tinnitus. Ann Med Surg (Lond) 2018; 36:203-211. [PMID: 30519463 PMCID: PMC6260231 DOI: 10.1016/j.amsu.2018.10.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 10/29/2018] [Accepted: 10/29/2018] [Indexed: 11/19/2022] Open
Abstract
Introduction Patients that are complaining from tinnitus but have normal hearing comprise an uncommon group and there is rare literature about them. Deficiency in B-complex vitamins has been shown to result in tinnitus and supplementation may improve the symptom which means manipulation of cochlear status. Distortion Product Otoacoustic emissions (DPOAEs) used frequently to assess cochlear status. Objectives The uses of DPOAE changing amplitude as a parameter to estimate effect of vitamin B complex on changing the severity of tinnitus in patients with tinnitus only in comparison to patients have tinnitus with Sensory Neural Hearing Loss (SNHL) and a control group. Methods Prospective observational cohort study was performed in AL-Karama Teaching Hospital as a secondary medical care center, from 01/01/2012 to 31/12/2016. A three groups had been evaluated clinically and by OAE device (ECHOLAB) to study the DPOAE changing amplitude before and after one month of supplementation of B-complex vitamins to 25 patients in study group (1) have (tinnitus only) and also to 25 patients in study group (2) have (Tinnitus + SNHL) but leaving control group who were a 25 medical staff (No Tinnitus and nor SNHL) without treatment. Results It has been found that among Study group 1 (patients had Tinnitus only), Study group 2 (patients had Tinnitus + SNHL) and the control group: 16 patients (44%), P-value = 0.000 HS; 28 patients (78%) P-value = 0.000 HS; and 0% respectively, they had low Amplitude of DPOAE recorded by OAE device (ECHOLAB). After one month from treatment with Neurobine ampules for study group 1& 2 but not control group (whom receive no treatment), those who got clinical improvement + increase Amplitude of DPOAE (i.e. subjective + objective changes) after treatment were 10 patients (28%) P-value = 0.000 HS in study group1, and two patients (5%) P-value 0.321 NS in study group 2, and there was no changes (zero) among control group. Conclusions The uses of DPOAE changing amplitude could be used as a parameter to estimate effect of vitamin B complex on changing the severity of Tinnitus in patients with tinnitus only or those have Tinnitus with SNHL. The supplementation of vitamin B complex could improve the tinnitus severity especially in patients with tinnitus without SNHL.
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Affiliation(s)
- Husam Majeed Hameed
- AL-Karama Teaching Hospital, College of Medicine, Wasit University, Iraq
- Corresponding author.
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14
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Abstract
Ototoxicity diagnosis and management has historically been approached using a variety of methods. However, in recent years a consensus on useful and practical approaches has been developed through clinical guidelines of the American Speech Language Hearing Association, the American Academy of Audiology, and multiple clinical trials published in peer-reviewed literature. Some of the guidelines and approaches are used to detect and monitor ototoxicity, while others are used to grade adverse events. Some of the audiologic measures are primary, while others are adjunct measures and may be tailored to the specific needs of the patient or clinical trial. For some types of monitoring, such as drug-induced tinnitus or dizziness, validated paper survey instruments can be both sensitive and easy for fragile patients. This review addresses the characteristics of some of the most common clinical ototoxins and the most common methods for detecting and monitoring ototoxicity in clinical practice and clinical trials.
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Affiliation(s)
- Kathleen C M Campbell
- Department of Medical Microbiology, Immunology and Cell Biology, Southern Illinois University School of Medicine, PO Box 9626, Springfield, IL, 62704-9626, USA.
| | - Colleen G Le Prell
- Callier Center for Communication Disorders, University of Texas at Dallas, 1966 Inwood Road, Dallas, TX, 75235, USA
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15
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A Comprehensive Study of Oxidative Stress in Tinnitus Patients. Indian J Otolaryngol Head Neck Surg 2018; 70:521-526. [PMID: 30464909 DOI: 10.1007/s12070-018-1464-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 07/23/2018] [Indexed: 10/28/2022] Open
Abstract
Oxidative stress is considered to be one of the molecular changes that are the underlying causes of tinnitus. The aim of this study was to investigate the dynamic thiol/disulphide homeostasis as a new oxidative stress parameter in tinnitus patients as well as to investigate the lipid hydroperoxide (LOOH), total antioxidant status (TAS), total oxidant status (TOS) and oxidative stress index (OSI) parameters and compare the results with the results of the healthy control group. A prospective controlled trial was performed on tinnitus patients in Harran University hospital. A total of 70 subjects, including 35 tinnitus patients and 35 healthy individuals participated in this study. Their total thiol, native thiol levels and LOOH, TAS, TOS levels were measured in plasma of all tinnitus patients and healthy volunteers participants. TOS and OSI levels were significantly increased, and TAS levels were significantly lower in the patient groups compared with the control group (p < 0.01). Native thiol levels and Native thiol/total thiol ratios were significantly lower in the tinnitus group compared to the control group (p < 0.01). Disulphide level and disulphide/native thiol and disulphide/total thiol ratios were significantly higher in the patients (p < 0.01). Also, LOOH ratios were significantly higher in the tinnitus group (p < 0.01). The results of this study reveal that in tinnitus cases, the oxidative stress and antioxidant enzyme imbalance were more significant than in healthy control group. The nature of the relationship between oxidative stress and tinnitus should be clarified with larger studies.
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Koc S, Kıyıcı H, Toker A, Soyalıç H, Aslan H, Kesici H, Karaca ZI. The effect of melatonin and vitamin C treatment on the experimentally induced tympanosclerosis: study in rats. Braz J Otorhinolaryngol 2016; 83:541-545. [PMID: 27484331 PMCID: PMC9444792 DOI: 10.1016/j.bjorl.2016.06.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 06/16/2016] [Accepted: 06/24/2016] [Indexed: 11/07/2022] Open
Abstract
Introduction The ethiopathogenesis of tympanosclerosis has not been completely under- stood yet. Recent studies have shown that free oxygen radicals are important in the formation of tympanosclerosis. Melatonin and Vitamin C are known to be a powerful antioxidant, interacts directly with Reactive Oxygen Species and controls free radical-mediated tissue damage. Objective To demonstrate the possible preventative effects of melatonin and Vitamin C on tympanosclerosis in rats by using histopathology and determination of total antioxidant status total antioxidant status. Methods Standard myringotomy and standard injury were performed in the middle ear of 24 rats. The animals were divided into three groups: Group 1 received melatonin, Group 2 received vitamin C, and Group 3 received saline solution. Results The mean values of total antioxidant status were similar in the all study groups before the treatment period. The mean values of total antioxidant status were significantly higher in the melatonin and vitamin C groups compared to control group but vitamin C with melatonin groups were similar after the treatment period (p < 0.001). Minimum and maximum wall thicknesses were lower in the melatonin and vitamin C groups compared to the control group but the differences were insignificant. Conclusion Melatonin increases total antioxidant status level and might have some effect on tympanosclerosis that develops after myringotomy.
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Affiliation(s)
- Sema Koc
- Antalya Education and Research Hospital, Department of ENT Head and Neck Surgery, Antalya, Turkey.
| | - Halil Kıyıcı
- Mevlana University, School of Medicine, Department of Pathology, Konya, Turkey
| | - Aysun Toker
- Necmettin Erbakan University, School of Medicine, Department of Biochemistry and Clinical Biochemistry, Konya, Turkey
| | - Harun Soyalıç
- Gaziosmanpasa University, School of Medicine, Department of Otorhinolaryngology, Tokat, Turkey
| | - Huseyin Aslan
- Gaziosmanpasa University, School of Medicine, Department of Histology and Embryology, Tokat, Turkey
| | - Hakan Kesici
- Gaziosmanpasa University, School of Medicine, Department of Histology and Embryology, Tokat, Turkey
| | - Zafer I Karaca
- Gaziosmanpasa University, School of Medicine, Department of Histology and Embryology, Tokat, Turkey
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Koç S, Akyüz S, Somuk BT, Soyalic H, Yılmaz B, Taskin A, Bilinc H, Aksoy N. Paraoxonase Activity and Oxidative Status in Patients with Tinnitus. J Audiol Otol 2016; 20:17-21. [PMID: 27144229 PMCID: PMC4853894 DOI: 10.7874/jao.2016.20.1.17] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 12/17/2015] [Accepted: 01/21/2016] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND AND OBJECTIVES The aim of this study was to investigate serum paraoxanase-1 (PON) activity, total oxidant status (TOS), total antioxidant status (TAS), and the oxidative stress index (OSI) in tinnitus; and to compare the results with data from healthy subjects. SUBJECTS AND METHODS A total of 114 subjects-54 patients with tinnitus and 60 healthy controls were enrolled in this study. Serum PON activity, TOS, TAS, and OSI levels were measured. RESULTS In the tinnitus group, TAS, and PON were significantly lower than in the control group (p<0.001). However, the TOS, and OSI levels were significantly higher in the tinnitus group than in the control group (p<0.001). CONCLUSIONS According to the data obtained from the present study, patients with tinnitus were exposed to potent oxidative stress. Oxidative stress may be the key contributing factor to the pathogenesis of tinnitus.
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Affiliation(s)
- Sema Koç
- Department of Otorhinolaryngology, Antalya Education and Research Hospital, Antalya, Turkey
| | - Servet Akyüz
- Department of Otorhinolaryngology, Gaziosmanpasa University School of Medicine, Tokat, Turkey
| | - Battal Tahsin Somuk
- Department of Otorhinolaryngology, Gaziosmanpasa University School of Medicine, Tokat, Turkey
| | - Harun Soyalic
- Department of Otorhinolaryngology, Gaziosmanpasa University School of Medicine, Tokat, Turkey
| | - Beyhan Yılmaz
- Department of Otorhinolaryngology, Dicle University School of Medicine, Diyarbakır, Turkey
| | - Abdullah Taskin
- Department of Biochemistry, Harran University School of Medicine, Sanliurfa, Turkey
| | - Hasan Bilinc
- Department of Biochemistry, Harran University School of Medicine, Sanliurfa, Turkey
| | - Nurten Aksoy
- Department of Biochemistry, Harran University School of Medicine, Sanliurfa, Turkey
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