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Pu K, Li L, Qiu Y, Song H. Lipids and sudden sensorineural hearing loss: A bidirectional two-sample Mendelian randomization analysis. Auris Nasus Larynx 2024; 51:365-370. [PMID: 37993362 DOI: 10.1016/j.anl.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/23/2023] [Accepted: 11/15/2023] [Indexed: 11/24/2023]
Abstract
OBJECTIVE While numerous observational studies have indicated an association between lipids and Sudden Sensorineural Hearing Loss (SSNHL), it remains uncertain whether dyslipidemia serves as a causal risk factor for SSNHL. Our objective is to elucidate the potential causal relationship between lipid levels and SSNHL through Mendelian randomization analysis. METHODS The primary and secondary lipid data used in this study were sourced from the UK Biobank (UKBB) and the Global Lipid Genetics Consortium results (GLGC), respectively. These datasets were obtained from large, publicly available genome-wide association studies (GWAS). The outcome data for sudden sensorineural hearing loss (SSNHL) were acquired from the Finnegan Biobank, consisting of 1491 cases and 196,592 controls. Subsequently, both single-variable Mendelian randomization (SVMR) and multivariate Mendelian randomization (MVMR) methods were employed to evaluate the causal relationship between lipids and the occurrence of SSNHL. RESULTS Among the primary lipid data, SVMR analysis showed a significant correlation between high density lipoprotein cholesterol (HDL-C) (OR: 0.822, 95 %CI: 0.694-0.974, p = 0.023) and SSNHL, and triglycerides (TG) (OR: 0.997, 95 %CI: 0.836-1.188, p = 0.975), low density lipoprotein cholesterol (LDL-C) (OR: 1.067, 95 %CI: 0.861-1.322, p = 0.552) did not correlate with SSNHL. In the secondary lipid data, SVMR analysis showed that HDL-C (OR: 0.987, 95 %CI: 0.805-1.210, p = 0.903), TG (OR: 0.991, 95 %CI: 0.787-1.246, p = 0.937) and LDL-C (OR: 1.092, 95 % CI: 0.926-1.287, p = 0.294) did not correlate with SSNHL. MVMR analysis of the primary lipid data showed that HDL-cholesterol (OR: 0.755, 95 % CI: 0.596-0.956, p = 0.019) was significantly associated with SSNHL, while TG (OR: 0.808, 95 %CI: 0.611-1.068, p = 0.134) and LDL-C (OR: 1.146, 95 %CI: 0.869-1.511, p = 0.333) did not correlate with SSNHL, consistent with the results of SVMR. Inverse MR results showed that SSNHL did not correlate with TG (OR: 0.999, 95 %CI: 0.997-1.001, p = 0.835), HDL-C (OR: 1.001, 95 %CI: 0.998-1.003), LDL-C (OR: 0.999, 95 %CI: 0.997-1.002, p = 0.863). CONCLUSIONS Mendelian randomization (MR) results suggest that decreased serum HDL-C levels are an independent risk factor for SSNHL. Monitoring and focusing on lipid levels may be of value in the prevention and treatment of SSNHL.
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Affiliation(s)
- Kunlin Pu
- Department of Otorhinolaryngology, Pengzhou Hospital of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Li Li
- Department of Otorhinolaryngology, Pengzhou Hospital of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Yan Qiu
- College of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Hongmei Song
- Department of Otorhinolaryngology, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
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Papadopoulou AM, Papouliakos S, Karkos P, Chaidas K. The Impact of Cardiovascular Risk Factors on the Incidence, Severity, and Prognosis of Sudden Sensorineural Hearing Loss (SSHL): A Systematic Review. Cureus 2024; 16:e58377. [PMID: 38756309 PMCID: PMC11097239 DOI: 10.7759/cureus.58377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2024] [Indexed: 05/18/2024] Open
Abstract
Sudden sensorineural hearing loss (SSHL) is believed to be mainly idiopathic since the cause is not usually identified. Several recent studies have examined the role of cardiovascular risk factors in this disease. The aim of this systematic literature review is to investigate the possible association between acquired and inherited cardiovascular risk factors and the incidence, severity, and prognosis of SSHL. A systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. A search of the PubMed database for the period between February 2010 and January 2023 was performed in order to retrieve eligible articles. The analytic cohort included 24 studies. Overall, this systematic review includes a total of 61,060 patients that were encompassed in these studies. According to most studies, the prevalence of dyslipidaemia, diabetes, and ultrasound indices of atherosclerosis was significantly higher in SSHL patients compared to controls. On the other hand, obesity, hypertension, and smoking did not seem to influence the risk of SSHL. Most studies suggest the presence of a correlation between a high cardiovascular risk profile and the risk of developing SSHL. The theory of microvascular impairment in the development of SSHL is indirectly supported by the findings of this review.
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Affiliation(s)
- Anna-Maria Papadopoulou
- Department of Anatomy, School of Medicine, National and Kapodistrian University of Athens, Athens, GRC
| | - Sotirios Papouliakos
- Department of Otolaryngology, General Hospital of Athens "G. Gennimatas", Athens, GRC
| | - Petros Karkos
- Department of Otolaryngology - Head and Neck Surgery, University General Hospital of Thessaloniki (AHEPA), Thessaloniki, GRC
| | - Konstantinos Chaidas
- Department of Ear, Nose, and Throat, School of Medicine, Democritus University of Thrace, University Hospital of Alexandroupolis, Alexandroupolis, GRC
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Wang ZH, Zhang HL. Relationship Between Serum ET-1, HDL-C, and sVCAM-1 and Hearing Loss in Patients with Sudden Deafness. Appl Biochem Biotechnol 2024; 196:1376-1385. [PMID: 37395946 DOI: 10.1007/s12010-023-04593-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/26/2023] [Indexed: 07/04/2023]
Abstract
Vascular causes are most commonly associated with sudden sensorineural hearing loss (SSHL). This study was performed to determine the relationship between serum endothelin-1 (ET-1), high-density lipoprotein cholesterol (HDL-C), soluble vascular cell adhesion molecule-1 (sVCAM-1) levels, and the degree of hearing loss in patients with SSHL. Firstly, 60 SSHL patients were admitted to The First Hospital of Shanxi Medical University. In the same period, 60 healthy subjects matching the age and gender of SSHL patients were selected as the control group. Then, serum levels of ET-1, HDL-C, and sVCAM-1 were measured by enzyme-linked immunosorbent assay (ELISA). Next, the relationship between serum levels of ET-1, HDL-C, and sVCAM-1 with clinicopathological factors and their diagnostic and prognostic values were analyzed and evaluated. Serum ET-1 and sVCAM-1 were increased, and HDL-C was decreased in patients with SSHL. Serum ET-1 and sVCAM-1 were higher and HDL-C was lower in patients aged ≥ 45 years, or severe hearing loss patients (P < 0.05). ROC analysis determined that ET-1 (AUC = 0.839), HDL-C (AUC = 0.830), and sVCAM-1 (AUC = 0.865) had excellent diagnostic values. In addition, patients with low levels of ET-1 and sVCAM-1 and high levels of HDL-C had better hearing prognosis (P < 0.05). Abnormal serum ET-1, HDL-C, and sVCAM-1 in patients with SSHL are closely related to age, and degree of hearing loss, and perform diagnostic and prognostic values.
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Affiliation(s)
- Zhao Hua Wang
- Shanxi Medical University, Taiyuan City, 030001, Shanxi Province, China
| | - Hai Li Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, The First Hospital of Shanxi Medical University, No. 85, Jiefang South Road, Yingze District, Taiyuan City, 030001, Shanxi Province, China.
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Yélamos Lorente MÁ, Perez-Carpena P, Lopez-Escamez JA. A Systematic Review on Heritability of Sudden Sensorineural Hearing Loss. Laryngoscope 2024. [PMID: 38270208 DOI: 10.1002/lary.31308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/23/2023] [Accepted: 01/03/2024] [Indexed: 01/26/2024]
Abstract
OBJECTIVE To assess the evidence supporting the heritability and genetic basis of sudden sensorineural hearing loss (SSNHL). DATA SOURCE Records were extracted from PubMed, Scopus, and Cochrane databases. REVIEW METHODS The protocol was registered on PROSPERO (CRD42022357389) and includes a systematic review on the genetic contribution to SSNHL. The search strategy yielded 1.483 articles from electronic databases. After quality assessment, 34 records were selected, including 369.650 patients with SSNHL from nine prevalence studies, two familial aggregation studies, one twin study, and 22 genetic studies. The prevalence of SSNHL was calculated from data on its incidence from population-based studies (period prevalence). To evaluate the heritability of SSNHL, the sibling recurrence risk ratio (λs) was calculated, by comparing the prevalence of SSNHL among siblings within the same generation to the estimated prevalence in the overall population. Genetic variants were grouped, based on the pathological mechanism related to SSNHL. RESULTS The prevalence of SSNHL ranged from 0.1% to 0.0003% in America to 0.12%-0.0093% in Asia. The estimated sibling recurrence risk ratio for SSNHL (λs = 20.8-83.3) supports a significant familial aggregation. Although several genetic variants were reported to be associated with SSHL in controlled studies, neither was replicated in an independent cohort. CONCLUSIONS Evidence supporting heritability of SSNHL is limited to epidemiological studies showing prevalence differences across different populations and familial aggregation. Genetic studies are of low quality and they lack replication cohort to confirm their findings. According to its low prevalence, exome or genome sequencing familial-based studies are needed to identify rare genetic variants in SSNHL. LEVEL OF EVIDENCE NA Laryngoscope, 2024.
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Affiliation(s)
- Mª Á Yélamos Lorente
- Division of Otolaryngology, Department of Surgery, University of Granada, Granada, Spain
- Family and Community Medicine, Zaidin Sur Health Center (Granada), San Cecilio University Hospital, Granada, Spain
| | - Patricia Perez-Carpena
- Division of Otolaryngology, Department of Surgery, University of Granada, Granada, Spain
- Department of Otolaryngology, Instituto de Investigación Biosanitaria, ibs.Granada, Hospital Universitario Virgen de las Nieves, Granada, Spain
- Sensorineural Pathology Programme, Centro de Investigación Biomédica en Red en Enfermedades Raras, CIBERER, Madrid, Spain
| | - Jose A Lopez-Escamez
- Division of Otolaryngology, Department of Surgery, University of Granada, Granada, Spain
- Department of Otolaryngology, Instituto de Investigación Biosanitaria, ibs.Granada, Hospital Universitario Virgen de las Nieves, Granada, Spain
- Meniere's Disease Neuroscience Research Program, Faculty of Medicine & Health, School of Medical Sciences, The Kolling Institute, University of Sydney, Sydney, New South Wales, Australia
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Lin CY, Chang CH, Chang CJ, Ko JY, Wu SY, Kuo PH. Salvage therapy for refractory sudden sensorineural hearing loss (RSSNHL): a systematic review and network meta-analysis. Int J Audiol 2024:1-10. [PMID: 38251843 DOI: 10.1080/14992027.2024.2303037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 01/03/2024] [Indexed: 01/23/2024]
Abstract
OBJECTIVE Approximately 30-50% of sudden sensorineural hearing loss (SSNHL) patients show poor response to systemic steroid therapy. Additionally, the most appropriate treatment for patients with refractory sudden sensorineural hearing loss (RSSNHL) is unknown. This study aimed to explore the best treatment for RSSNHL. DESIGN Using a frequentist contrast-based model and PRISMA guidelines, this study compared five salvage regimes: intratympanic injection of steroids (ITS), hyperbaric oxygen (HBO) therapy, post auricle steroid injection (PSI), ITS combined with HBO therapy, and continued systemic steroids. STUDY SAMPLE We searched the PubMed, EMBASE, Web of Science, and Cochrane Library databases for randomised controlled trials and cohort studies comparing treatment regimens for RSSNHL. RESULTS Compared with the control group (no additional treatment), PSI and ITS demonstrated significant improvements. The mean hearing gain was greater after PSI (11.1 dB [95% CI, 4.4-17.9]) than after ITS (7.7 dB [95% CI, 4.8-10.7]). When a restricted definition of RSSNHL was used, the ITS + HBO therapy showed the largest difference in improvement for pure tone average compared with the control group (14.5 dB [95% CI, 4.2-25.0]). CONCLUSIONS The administration of either PSI or ITS leads to the greatest therapeutic effect in patients with RSSNHL. However, a consensus on the definition of RSSNHL is needed.
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Affiliation(s)
- Chuan-Yi Lin
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
- Department of Otorhinolaryngology, Lo-Hsu Medical Foundation, Lotung Poh-Ai Hospital, Yilan, Taiwan
| | - Chia-Hao Chang
- Department of Otorhinolaryngology, Lo-Hsu Medical Foundation, Lotung Poh-Ai Hospital, Yilan, Taiwan
| | - Chen-Jung Chang
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Jenq-Yuh Ko
- Department of Otorhinolaryngology, Lo-Hsu Medical Foundation, Lotung Poh-Ai Hospital, Yilan, Taiwan
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan
| | - Szu-Yuan Wu
- Department of Food Nutrition and Health Biotechnology, College of Medical and Health Science, Asia University, Taichung, Taiwan
- Big Data Center, Lo-Hsu Medical Foundation, Lotung Poh-Ai Hospital, Yilan, Taiwan
- Division of Radiation Oncology, Lo-Hsu Medical Foundation, Lotung Poh-Ai Hospital, Yilan, Taiwan
- Department of Healthcare Administration, College of Medical and Health Science, Asia University, Taichung, Taiwan
- Graduate Institute of Business Administration, Fu Jen Catholic University, New Taipei City, Taiwan
- Centers for Regional Anesthesia and Pain Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Po-Hsiu Kuo
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
- Department of Public Health and Institute of Health Behaviors and Community Sciences, College of Public Health, National Taiwan University, Taipei, Taiwan
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
- Psychiatric Research Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
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Kovács M, Uzsaly J, Bodzai G, Pap I, Lippai B, Dergez T, Németh A, Gerlinger I, Szanyi I, Bakó P. Efficacy of high dose systemic versus combined (systemic and intratympanic) corticosteroid therapy in idiopathic sudden sensorineural hearing loss: A prospective randomized trial and risk factor analysis. Am J Otolaryngol 2024; 45:104099. [PMID: 37948820 DOI: 10.1016/j.amjoto.2023.104099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/29/2023] [Indexed: 11/12/2023]
Abstract
The pathophysiology and the proper treatment of idiopathic sudden sensorineural hearing loss (ISSNHL) are an ongoing subject of debate. Locally or systemic administered corticosteroids are the most accepted drugs of treatment in reference to ISSNHL (idiopathic sudden sensorineural hearing loss), however, no strong evidence nor guidelines regarding their effectiveness yet exists. In our prospective, randomized, controlled trial 78 participants were enrolled. Patients were randomly assigned based on the day of admission to two groups according to treatment: group SS (n = 43) received intravenous systemic methylprednisolone alone, and group CT (n = 35) received intratympanic dexamethasone + systemic methylprednisolone. The primary outcome was to compare the hearing outcomes between the treatment groups based on different, widely accepted categories (Siegel, Kanzaki, modified Siegel and PTA4 gain). In consideration of the secondary outcome, we examined the effect of the various risk factors on the hearing improvement. No differences were detected regarding hearing improvement between the two groups, based on any criteria [Siegel's criteria (p = 0.604); Kanzaki's criteria (p = 0.720); modified Siegel's criteria (p = 0.524) and PTA 4 gain (p = 0.569)]. However, several clinical factors such as vertigo (p = 0.039), or cardiovascular comorbidity (p = 0.02) and the severity of initial hearing loss (p = 0.033) were found to bear a significant impact upon the hearing outcome. To the best of our knowledge, this is the first randomized controlled trial comparing high dose systemic and combination corticosteroid therapy in ISSNHL patients. Our findings suggest coexisting cardiovascular comorbidity, vertigo and severity of the initial hearing loss may bear a significantly higher impact upon hearing improvement, than the additional intratympanic steroid administration. The presented trial was registered in the European Union Drug Regulating Authorities Clinical Trials Database (name: Combinated systemic and intratympanic steroid therapy in idiopathic sudden sensorineural hearing loss, No.: 2017-000658-20) and with the ethical approval of The National Institute of Pharmacy and Nutrition (OGYÉI) (protocol No.: 7621, on 2017.02.16.).
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Affiliation(s)
- M Kovács
- University of Pécs, Medical School, Department of Otorhinolaryngology, Munkácsy M St 2, H-7621 Pécs, Hungary
| | - J Uzsaly
- University of Pécs, Medical School, Department of Otorhinolaryngology, Munkácsy M St 2, H-7621 Pécs, Hungary
| | - G Bodzai
- University of Pécs, Medical School, Department of Otorhinolaryngology, Munkácsy M St 2, H-7621 Pécs, Hungary
| | - I Pap
- University of Pécs, Medical School, Department of Otorhinolaryngology, Munkácsy M St 2, H-7621 Pécs, Hungary
| | - B Lippai
- University of Pécs, Szentagothai Research Centre, Ifjuság Str 20, H-7624 Pécs, Hungary
| | - T Dergez
- University of Pécs, Medical School, Institute of Bioanalysis, Honvéd St 1, H-7624 Pécs, Hungary
| | - A Németh
- University of Pécs, Medical School, Department of Otorhinolaryngology, Munkácsy M St 2, H-7621 Pécs, Hungary
| | - I Gerlinger
- University of Pécs, Medical School, Department of Otorhinolaryngology, Munkácsy M St 2, H-7621 Pécs, Hungary
| | - I Szanyi
- University of Pécs, Medical School, Department of Otorhinolaryngology, Munkácsy M St 2, H-7621 Pécs, Hungary.
| | - P Bakó
- University of Pécs, Medical School, Department of Otorhinolaryngology, Munkácsy M St 2, H-7621 Pécs, Hungary; University of Pécs, Szentagothai Research Centre, Ifjuság Str 20, H-7624 Pécs, Hungary
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Çaglar Çil Ö, Bakirdögen S, Çakir DÜ, Gül H, Oymak S. Evaluation of von Willebrand factor and protein/creatinine ratio in idiopathic sudden hearing loss. Acta Otorrinolaringol Esp (Engl Ed) 2023; 74:277-282. [PMID: 36427796 DOI: 10.1016/j.otoeng.2022.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 09/01/2022] [Accepted: 09/28/2022] [Indexed: 11/25/2022]
Abstract
OBJECTIVE The objective of this study was to evaluate the levels of von Willebraund Factor (vWF) in plasma and the protein/creatinine ratio in urine in patients with idiopathic sudden acute hearing loss, which we think to be caused by epithelial dysfunction. MATERIALS-METHODS Thirty patients with a sudden hearing loss and thirty healthy individuals were included in the study. Before the treatment, blood and urine were collected from the patients and the control group to investigate the levels of the protein/creatinine ratio and the levels of vWF. The test results of the patients group were compared with those of the control group. RESULTS We found that the levels of vWF increased in the patient group, which was statistically significant (P<.05). The protein/creatinine ratio in the urine increased in the patient group, but this was not statistically significant (P>.05). In addition, we found that the vWF and urine protein/creatin ratio of the patients who benefited from treatment were lower than those who did not benefit. CONCLUSIONS This study showed that sudden sensorineural hearing loss may result from endothelial dysfunction. However, more studies that include more patients are needed in order to support this.
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Affiliation(s)
- Özge Çaglar Çil
- Canakkale 18 March University, Medical School, Otorhinolaryngology Department, Turkey.
| | - Serkan Bakirdögen
- Canakkale 18 March University, Medical School, Nephrology Department, Turkey
| | - Dilek Ülker Çakir
- Canakkale 18 March University, Medical School, Biochemistry Department, Turkey
| | - Hasan Gül
- Canakkale 18 March University, Medical School, Biochemistry Department, Turkey
| | - Sibel Oymak
- Canakkale 18 March University, Medical School, Public Health Department, Turkey
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Kim SJ, Gajbhiye A, Lyu AR, Kim TH, Shin SA, Kwon HC, Park YH, Park MJ. Sex differences in hearing impairment due to diet-induced obesity in CBA/Ca mice. Biol Sex Differ 2023; 14:10. [PMID: 36810096 PMCID: PMC9945383 DOI: 10.1186/s13293-023-00493-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 02/07/2023] [Indexed: 02/24/2023] Open
Abstract
BACKGROUND Obesity is an independent risk factor for hearing loss. Although attention has focused on major obesity comorbidities such as cardiovascular disease, stroke, and type 2 diabetes, the impact of obesity on sensorineural organs, including the auditory system, is unclear. Using a high-fat diet (HFD)-induced obese mouse model, we investigated the impact of diet-induced obesity on sexual dimorphism in metabolic alterations and hearing sensitivity. METHODS Male and female CBA/Ca mice were randomly assigned to three diet groups and fed, from weaning (at 28 days) to 14 weeks of age, a sucrose-matched control diet (10 kcal% fat content diet), or one of two HFDs (45 or 60 kcal% fat content diets). Auditory sensitivity was evaluated based on the auditory brainstem response (ABR), distortion product otoacoustic emission (DPOAE), and ABR wave 1 amplitude at 14 weeks of age, followed by biochemical analyses. RESULTS We found significant sexual dimorphism in HFD-induced metabolic alterations and obesity-related hearing loss. Male mice exhibited greater weight gain, hyperglycemia, increased ABR thresholds at low frequencies, elevated DPOAE, and lower ABR wave 1 amplitude compared to female mice. The hair cell (HC) ribbon synapse (CtBP2) puncta showed significant sex differences. The serum concentration of adiponectin, an otoprotective adipokine, was significantly higher in female than in male mice; cochlear adiponectin levels were elevated by HFD in female but not male mice. Adiponectin receptor 1 (AdipoR1) was widely expressed in the inner ear, and cochlear AdipoR1 protein levels were increased by HFD, in female but not male mice. Stress granules (G3BP1) were significantly induced by the HFD in both sexes; conversely, inflammatory (IL-1β) responses were observed only in the male liver and cochlea, consistent with phenotype HFD-induced obesity. CONCLUSIONS Female mice are more resistant to the negative effects of an HFD on body weight, metabolism, and hearing. Females showed increased peripheral and intra-cochlear adiponectin and AdipoR1 levels, and HC ribbon synapses. These changes may mediate resistance to HFD-induced hearing loss seen in female mice.
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Affiliation(s)
- Soo Jeong Kim
- grid.254230.20000 0001 0722 6377Brain Research Institute, College of Medicine, Chungnam National University, 282 Munwha-ro, Daesa-dong, Jung-gu, 35015 Daejeon, South Korea
| | - Akanksha Gajbhiye
- grid.254230.20000 0001 0722 6377Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, 35015 South Korea
| | - Ah-Ra Lyu
- grid.254230.20000 0001 0722 6377Brain Research Institute, College of Medicine, Chungnam National University, 282 Munwha-ro, Daesa-dong, Jung-gu, 35015 Daejeon, South Korea
| | - Tae Hwan Kim
- grid.254230.20000 0001 0722 6377Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, 35015 South Korea
| | - Sun-Ae Shin
- grid.254230.20000 0001 0722 6377Brain Research Institute, College of Medicine, Chungnam National University, 282 Munwha-ro, Daesa-dong, Jung-gu, 35015 Daejeon, South Korea
| | - Hyuk Chan Kwon
- grid.254230.20000 0001 0722 6377Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, 35015 South Korea
| | - Yong-Ho Park
- Brain Research Institute, College of Medicine, Chungnam National University, 282 Munwha-ro, Daesa-dong, Jung-gu, 35015, Daejeon, South Korea. .,Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, 35015, South Korea. .,Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Chungnam National University, Daejeon, 35015, South Korea.
| | - Min Jung Park
- Brain Research Institute, College of Medicine, Chungnam National University, 282 Munwha-ro, Daesa-dong, Jung-gu, 35015, Daejeon, South Korea. .,Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Chungnam National University, Daejeon, 35015, South Korea.
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Lenkeit CP, Lofgren DH, Zappia J. Cardiovascular Risk Factors and Sudden Sensorineural Hearing Loss: A Case-Control Study. Otol Neurotol 2023; 44:121-5. [PMID: 36624587 DOI: 10.1097/MAO.0000000000003767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
OBJECTIVE To investigate the role of cardiovascular risk factors (specifically hypertension [HTN], hyperlipidemia/dyslipidemia, diabetes mellitus I and II, and body mass index (BMI) on the development of sudden sensorineural hearing loss (SSNHL). STUDY DESIGN Case-control retrospective chart review. SETTING A tertiary referral center. PATIENTS Patients aged 18 to 85 years who presented to the clinic over a 1-year span (September 17, 2020 to September 17, 2021) for evaluation of sudden sensorineural hearing loss. MAIN OUTCOME MEASURE Comparing the prevalence of the different cardiovascular risk factors (CVRFs) in patients with sudden sensorineural hearing loss compared with when compared with non-SSNHL patients at a neurotology clinic. RESULTS Two hundred twenty-three patients with SSNHL were compared with age- and gender-matched comparison group to investigate the prevalence of cardiovascular risk factors within each group. There are no statistically significant differences (p > 0.05) in the prevalence of HTN, hyperlipidemia/dyslipidemia, diabetes mellitus I and II, and BMI in patients with sudden sensorineural hearing loss when compared with non-SSNHL patients at a neurotology clinic. CONCLUSIONS Despite correlation between CVRF and SSNHL found in some other studies, we did not find a significant correlation between CVRF (diabetes, HTN, dyslipidemia, and high BMI) and SSNHL in our retrospective case control study of patients presenting to a nonacademic tertiary neurotology clinic. Although there may be other factors contributing to the pathogenesis of SSNHL, we have not yet identified these factors.
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Yamada S, Kita J, Shinmura D, Nakamura Y, Sahara S, Misawa K, Nakanishi H. Update on Findings about Sudden Sensorineural Hearing Loss and Insight into Its Pathogenesis. J Clin Med 2022; 11:6387. [PMID: 36362614 PMCID: PMC9653771 DOI: 10.3390/jcm11216387] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/17/2022] [Accepted: 10/27/2022] [Indexed: 07/26/2023] Open
Abstract
Sudden sensorineural hearing loss (SSNHL) is routinely encountered and is one of the most common emergent diseases in otolaryngology clinics. However, the etiology of SSNHL remains unclear. Due to the inaccessibility of the living human inner ear for biopsy, studies investigating the etiology of SSNHL have been performed by analyzing data obtained from examinations using peripheral blood or imaging. We updated the findings obtained from serological, magnetic resonance imaging, genetic, and viral examinations to reveal the etiology of SSNHL. Regarding viral examination, we focused on sensorineural hearing loss associated with coronavirus disease (COVID-19) because the number of correlated reports has been increasing after the outbreak. The updated findings revealed the following three possible mechanisms underlying the development of SSNHL: thrombosis and resulting vascular obstruction in the cochlea, asymptomatic viral infection and resulting damage to the cochlea, and cochlear inflammation and resulting damage to the cochlea. Thrombosis and viral infection are predominant, and cochlear inflammation can be secondarily induced through viral infection or even thrombosis. The findings about sensorineural hearing loss associated with COVID-19 supported the possibility that asymptomatic viral infection is one of the etiologies of SSNHL, and the virus can infect inner ear tissues and directly damage them.
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Affiliation(s)
- Satoshi Yamada
- Department of Otorhinolaryngology/Head & Neck Surgery, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan
| | - Junya Kita
- Department of Otorhinolaryngology/Head & Neck Surgery, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan
| | - Daichi Shinmura
- Department of Otorhinolaryngology/Head & Neck Surgery, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan
| | - Yuki Nakamura
- Department of Otorhinolaryngology/Head & Neck Surgery, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan
| | - Sosuke Sahara
- Department of Otorhinolaryngology/Head & Neck Surgery, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan
- Department of Otorhinolaryngology, Numazu City Hospital, Numazu 410-0302, Japan
| | - Kiyoshi Misawa
- Department of Otorhinolaryngology/Head & Neck Surgery, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan
| | - Hiroshi Nakanishi
- Department of Otorhinolaryngology/Head & Neck Surgery, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan
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11
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Péus D, Sellathurai S, Newcomb N, Tschopp K, Radeloff A. The Otoprotective Effect of Ear Cryotherapy: Systematic Review and Future Perspectives. Audiol Res 2022; 12:377-387. [PMID: 35892664 PMCID: PMC9326667 DOI: 10.3390/audiolres12040038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/20/2022] [Accepted: 06/30/2022] [Indexed: 11/16/2022] Open
Abstract
This systematic review investigates ear cooling and cryotherapy in the prevention and treatment of inner ear damage and disease, within the context of animal models and clinical studies. A literature search was carried out in the databases Pubmed and Cochrane Library. Ten studies were identified concerning the otoprotective properties of cryotherapy. Nine of these were rodent in vivo studies (mice, rats, gerbils, guinea pigs). One study involved human subjects and investigated cryotherapy in idiopathic sensorineural hearing loss. The studies were heterogeneous in their goals, methods, and the models used. Disorder models included ischemia and noise damage, ototoxicity (cisplatin and aminoglycoside), and CI-electrode insertion. All ten studies demonstrated significant cryotherapeutic otoprotection for their respective endpoints. No study revealed or expressly investigated otodestructive effects. While limited in number, all of the studies within the scope of the review demonstrated some degree of cryotherapeutic, otoprotective effect. These promising results support the conducting of further work to explore and refine the clinical applicability and impact of cryotherpeutics in otolaryngology.
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Affiliation(s)
- Dominik Péus
- Department of Otorhinolaryngology, University of Oldenburg, 26122 Oldenburg, Germany; (N.N.); (A.R.)
- Department of Otorhinolaryngology, Cantonal Hospital Baselland, 4410 Liestal, Switzerland; (S.S.); (K.T.)
- Correspondence: ; Tel.: +49-441-2360
| | - Shaumiya Sellathurai
- Department of Otorhinolaryngology, Cantonal Hospital Baselland, 4410 Liestal, Switzerland; (S.S.); (K.T.)
- Department of Biomedicine, University of Basel, 4001 Basel, Switzerland
| | - Nicolas Newcomb
- Department of Otorhinolaryngology, University of Oldenburg, 26122 Oldenburg, Germany; (N.N.); (A.R.)
- The Software Revolution, Inc., Kirkland, WA 98034, USA
| | - Kurt Tschopp
- Department of Otorhinolaryngology, Cantonal Hospital Baselland, 4410 Liestal, Switzerland; (S.S.); (K.T.)
| | - Andreas Radeloff
- Department of Otorhinolaryngology, University of Oldenburg, 26122 Oldenburg, Germany; (N.N.); (A.R.)
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12
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Schubert NMA, van Tuinen M, Pyott SJ. Transcriptome-Guided Identification of Drugs for Repurposing to Treat Age-Related Hearing Loss. Biomolecules 2022; 12:498. [PMID: 35454087 PMCID: PMC9028743 DOI: 10.3390/biom12040498] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/13/2022] [Accepted: 03/22/2022] [Indexed: 02/04/2023] Open
Abstract
Age-related hearing loss (ARHL) or presbycusis is a prevalent condition associated with social isolation, cognitive impairment, and dementia. Age-related changes in the cochlea, the auditory portion of the inner ear, are the primary cause of ARHL. Unfortunately, there are currently no pharmaceutical approaches to treat ARHL. To examine the biological processes underlying age-related changes in the cochlea and identify candidate drugs for rapid repurposing to treat ARHL, we utilized bulk RNA sequencing to obtain transcriptomes from the functional substructures of the cochlea—the sensorineural structures, including the organ of Corti and spiral ganglion neurons (OC/SGN) and the stria vascularis and spiral ligament (SV/SL)—in young (6-week-old) and old (2-year-old) C57BL/6 mice. Transcriptomic analyses revealed both overlapping and unique patterns of gene expression and gene enrichment between substructures and with ageing. Based on these age-related transcriptional changes, we queried the protein products of genes differentially expressed with ageing in DrugBank and identified 27 FDA/EMA-approved drugs that are suitable to be repurposed to treat ARHL. These drugs target the protein products of genes that are differentially expressed with ageing uniquely in either the OC/SGN or SV/SL and that interrelate diverse biological processes. Further transcriptomic analyses revealed that most genes differentially expressed with ageing in both substructures encode protein products that are promising drug target candidates but are, nevertheless, not yet linked to approved drugs. Thus, with this study, we apply a novel approach to characterize the druggable genetic landscape for ARHL and propose a list of drugs to test in pre-clinical studies as potential treatment options for ARHL.
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13
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Chen K, Sun J, Huang B, Liang Y, Liu M, Wu X. Labyrinthine lesions in presumed inner ear hemorrhage-related sudden deafness. Am J Otolaryngol 2022; 43:103331. [PMID: 34952417 DOI: 10.1016/j.amjoto.2021.103331] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/20/2021] [Accepted: 12/08/2021] [Indexed: 11/19/2022]
Abstract
PURPOSE Inner ear hemorrhage (IEH) is a rare cause of sudden sensorineural hearing loss (SSNHL). This study aimed to evaluate the lesional patterns in patients with presumed IEH from morphological and functional aspects. METHODS Seventeen patients with SSNHL and presumed IEH who completed audio-vestibular tests were included. The main outcome measures included clinical characteristics, radiology, and functional test results. RESULTS The morphological findings and functional tests revealed differences in locations and lesional spectrums. The magnetic resonance imaging (MRI) hyperintensity was likely to involve the vestibule (88.2%), the cochlea (76.5%), and the posterior and lateral semicircular canals (76.5% and 70.6%, respectively). Furthermore, 70.6% of cases showed abnormality in the entire labyrinth, and abnormalities in the vestibule/semicircular canals were observed in 17.6% of cases. Meanwhile, dysfunction was sequentially detected in the cochlea (100%), semicircular canals (94.1%), and vestibule (70.6%); 64.7% of cases showed combined deficit in the entire labyrinth, and 29.4% of cases showed combined deficit in the cochlea/semicircular canals. Although lesions in the labyrinth were frequently detected, the results of the radiological and functional tests did not always match and significantly differed in either cochlear or superior semicircular canal damage detection (p < 0.05 each). CONCLUSIONS In this cohort, IEH preferentially caused sudden audio-vestibular impairment, which was well demonstrated by a combination of MRI and functional tests. The specific lesional configurations revealed in this study may suggest a possible pathomechanism that could be further explored as a therapeutic target.
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Affiliation(s)
- Kaitian Chen
- Department of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University and Institute of Otorhinolaryngology, Sun Yat-sen University, Guangzhou 510080, China
| | - Jincangjian Sun
- Department of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University and Institute of Otorhinolaryngology, Sun Yat-sen University, Guangzhou 510080, China
| | - Bixue Huang
- Department of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University and Institute of Otorhinolaryngology, Sun Yat-sen University, Guangzhou 510080, China
| | - Yue Liang
- Department of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University and Institute of Otorhinolaryngology, Sun Yat-sen University, Guangzhou 510080, China
| | - Min Liu
- Department of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University and Institute of Otorhinolaryngology, Sun Yat-sen University, Guangzhou 510080, China.
| | - Xuan Wu
- Department of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University and Institute of Otorhinolaryngology, Sun Yat-sen University, Guangzhou 510080, China.
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14
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Başer E, Kendirci HNP. Effects of Obesity on the Auditory Function of Children and Adolescents. Int Arch Otorhinolaryngol 2022; 26:e440-e445. [PMID: 35846826 PMCID: PMC9282962 DOI: 10.1055/s-0041-1739312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 03/23/2021] [Indexed: 11/02/2022] Open
Abstract
Abstract
Introduction Childhood and adolescent obesity is associated with insulin resistance, abnormal glucose metabolism, hypertension, dyslipidemia, inflammation, liver disease, and compromised vascular function.
Objective We aimed to evaluate the effects of obesity on the auditory function and speech audiometry of children and adolescents.
Methods Subjects with a body mass index (BMI) higher than +2 standard deviation (SD) were classified as obese, and subjects with normal BMI SD were classified as the control group. Blood samples were taken for glucose, insulin, and lipid profiles following an 8-hour fasting period, and a hepatobiliary ultrasound was performed. The homeostatic model assessment for insulin resistance (HOMA-IR) was calculated. The audiological evaluation included pure-tone audiometry (PTA), speech reception threshold (SRT), and speech discrimination score (SDS).
Results The study included 100 children (50 girls) with obesity, with a mean age of 11.4 ± 2.9 years and 30 children with normal body weight, with a mean age of 11.9 ± 3.3 years. Of the children with obesity, 55% (n = 55) were found to have hyperlipidemia, 68% (n = 68) insulin resistance, and 21% (n = 21) hepatosteatosis. There were no statistically significant differences between children with obesity and the control group in terms of SDS or PTA, while SRT was found to be higher in children with obesity. There was no difference between obese children with or without hyperlipidemia, between obese children with or without insulin resistance, and between obese children with or without hepatosteatosis, according to hearing tests.
Conclusion The result of the present study indicates that children with obesity are more prone to having auditory problems than the normal population. We recommend more frequent audiological evaluations, including speech audiometry, in children and adolescents with obesity problems
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Affiliation(s)
- Engin Başer
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Health Sciences, Izmir Tepecik Training and Research Hospital, İzmir, Turkey
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15
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Ningrum VDA, Istikharah R, Sadewa AH. Genetic Polymorphism of ITGA2 C807T Collagen Receptor Encoding Gene of Aspirin Therapy among Javanese-Indonesian Healthy Respondents. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.7430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Aspirin is an antiplatelet drug commonly administered as primary and secondary prophylaxis to prevent thromboembolic events. However, there has been a common incidence of aspirin resistance that leads to a recurrent cerebrovascular disease. One of the causes of such event is the genetic polymorphisms of the integrin alpha-2 (ITGA2) gene that encodes the glycoprotein Ia (GPIa) receptor in the pharmacodynamics of aspirin.
AIM: This study analyzed the genetic polymorphism of ITGA2 as the GPIa collagen receptor encoding gene of aspirin therapy among healthy Javanese, the largest ethnic group in Indonesia.
METHODS: This cross-sectional study involved 100 respondents who met the inclusion criteria with their blood sample taken for DNA isolation. Identification of genetic polymorphism in the target SNPs was done using the PCR-RFLP method with 5’-CCTTAAAGCTACCGGCCCATGT-3’ forward primer and 5’-TTGGCCTATTAGCACCAAAACTTACC-3’ reverse primer as well as Hpy188Irestriction enzyme to fragment the target at position 244 in the C base.
RESULTS: This study found that the dominant genotype and allele were CT (51%) and C (66.5%), respectively.
CONCLUSION: The allele frequency of ITGA2 gene in this study was similar to that of the populations in other Asian countries. Further research regarding the effects of ITGA2 C807T polymorphism on the pharmacodynamics of aspirin as an antiplatelet is recommended to minimize atherothrombotic events and examine its interactions as a biomarker of the risk and prognosis of some cancer types.
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16
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Chen W, Geng Y, Luo S, Lin N, Sha Y. The Correlation of Clinical Features and Endolymphatic Hydrops Visualized by 3D-Real IR MRI in Children With Sudden Sensorineural Hearing Loss. Ear Nose Throat J 2021; 102:NP257-NP264. [PMID: 33848202 DOI: 10.1177/01455613211009432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES To investigate the correlation between clinical features and endolymphatic hydrops (EH) in children with sudden sensorineural hearing loss (SSNHL). METHODS We collected 30 SSNHL children aged ≤17 years old, all of whom underwent intravenous gadolinium injection. After 4 hours, inner ear 3-dimensional inversion recovery sequence with real reconstruction (3D-real IR) magnetic resonance imaging was performed. Combined with their medical history such as gender, age, disease course, hearing loss, and so on, the results were analyzed. RESULTS Different degrees of EH were shown in the vestibule or different turns of cochlea in the affected ears of SSNHL children, and 12 (40%) of 30 children showed positive EH. Age, low and middle frequency hearing loss, and other clinical symptoms such as dizziness and ear fullness have been shown to be related to a certain degree of EH in vestibule or cochlea, whereas no relationship was found between EH and other clinical features such as high-frequency hearing loss, gender, affected side, and tinnitus. CONCLUSIONS Endolymphatic hydrops may not reflect the trend of disease progression over time in children with SSNHL, but the age of onset may be an important factor in the presence or absence of EH. Endolymphatic hydrops may be one of the causes of dizziness and ear fullness but has no obvious connection with the occurrence of tinnitus. Older SSNHL children with dizziness and ear fullness should maintain long-term follow-up to dynamically monitor the changes in EH.
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Affiliation(s)
- Wei Chen
- Department of Radiology, Eye & ENT Hospital of Fudan University, Shanghai, China.,Shanghai Institute of Medical Imaging, Fudan University, Shanghai, China
| | - Yue Geng
- Department of Radiology, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Siqi Luo
- Department of Radiology, Eye & ENT Hospital of Fudan University, Shanghai, China.,Shanghai Institute of Medical Imaging, Fudan University, Shanghai, China
| | - Naier Lin
- Department of Radiology, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Yan Sha
- Department of Radiology, Eye & ENT Hospital of Fudan University, Shanghai, China
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17
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Yuan J, Jiang Z, Li M, Li W, Gu X, Wang Z, Pi L, Xu Y, Zhou H, Zhang B, Deng Q, Wang Y, Huang P, Zhang L, Gu X. Integrin α2 gene polymorphism is a risk factor of coronary artery lesions in Chinese children with Kawasaki disease. Pediatr Rheumatol Online J 2021; 19:12. [PMID: 33557870 PMCID: PMC7869497 DOI: 10.1186/s12969-021-00494-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 01/11/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Kawasaki disease (KD) is a systemic vasculitis, and the formation of coronary artery lesions(CAL) is its most common sequela. Both genetic and environmental factors are considered to be important factors of in KD. Integrin α2 (ITGA2) is a transmembrane receptor that is associated with susceptibility to several diseases, but its relevance to KD with CAL is unclear. METHODS We genotyped ITGA2 rs1126643 in 785 KD patients with the CAL and no-CAL(NCAL) (300 patients with CAL, and 485 age- and sex-matched patients with NCAL). OR (95% CI) and adjusted OR (95% CI) were used to evaluate the intensity of the association. RESULTS We found a significantly increased risk of KD with CAL associated with ITGA2 rs1126643 genotypes (CT vs CC: adjusted OR = 1.57, 95% CI = 1.16-2.12, P = 0.0032; CT/TT vs CC: adjusted OR = 1.49, 95% CI = 1.12-2.00, P = 0.0068; T vs C: adjusted OR = 1.66, 95% CI = 1.16-2.51, P = 0.0165). Moreover, we found that carriers of the CT/TT genotype had a significant risk of KD with coronary artery lesion susceptibility for children ≤60 months of age, and the CT/TT genotype was significantly associated with an increased risk of SCAL formation and MCAL formation when compared with the CC genotype. CONCLUSION ITGA2 rs1126643 was associated with increased susceptibility and severity of CAL in KD.
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Affiliation(s)
- Jia Yuan
- grid.410737.60000 0000 8653 1072Department of Cardiology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Zhiyong Jiang
- grid.410737.60000 0000 8653 1072Department of Blood Transfusion and Clinical Lab, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Meiai Li
- grid.410737.60000 0000 8653 1072Department of Clinical Lab, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Wei Li
- grid.410737.60000 0000 8653 1072Department of Cardiology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Xueping Gu
- grid.410737.60000 0000 8653 1072Department of Blood Transfusion and Clinical Lab, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Zhouping Wang
- grid.410737.60000 0000 8653 1072Department of Cardiology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Lei Pi
- grid.410737.60000 0000 8653 1072Department of Clinical Biological Resource Bank, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Yufen Xu
- grid.410737.60000 0000 8653 1072Department of Clinical Biological Resource Bank, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Huazhong Zhou
- grid.410737.60000 0000 8653 1072Department of Clinical Biological Resource Bank, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Baidu Zhang
- grid.410737.60000 0000 8653 1072Department of Clinical Lab, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Qiulian Deng
- grid.410737.60000 0000 8653 1072Department of Clinical Lab, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Yanfei Wang
- grid.410737.60000 0000 8653 1072Department of Cardiology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Ping Huang
- grid.410737.60000 0000 8653 1072Department of Cardiology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Li Zhang
- Department of Cardiology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, Guangdong, China.
| | - Xiaoqiong Gu
- Department of Blood Transfusion , Clinical Biological Resource Bank and Clinical Lab, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, Guangdong, China.
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Kim SY, Lee CH, Min C, Kim HJ, Choi HG. Herpes zoster does not increase the risk of sudden sensory neural hearing loss: a longitudinal follow-up study using a national sample cohort. Int J Audiol 2019; 59:173-178. [PMID: 31536385 DOI: 10.1080/14992027.2019.1666309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Objective: This study aimed to investigate the risk of sudden sensorineural hearing loss (SSNHL) in Herpes zoster patients from a representative population cohort.Design: A longitudinal follow-up studyStudy sample: Data were obtained from the Korean National Health Insurance Service-National Sample Cohort for the period from 2002 to 2013. We matched 61,702 subjects in the Herpes zoster group with subjects in a control group (246,808 subjects with no history of Herpes zoster) based on demographic factors (age, sex, income, and region of residence) and medical history (diabetes, dyslipidemia, and hypertension). The crude (simple) and adjusted hazard ratios (HRs) for Herpes zoster with SSNHL were analysed using the Cox-proportional hazard model.Results: Only 0.5% (338/61,364) of the Herpes zoster group and 0.7% (1664/245,144) of the control group showed SSNHL. The Herpes zoster group did not exhibit a higher rate of SSNHL (adjusted HR = 0.81, 95% CI = 0.72-0.91, p < 0.001) than the control group. In subgroup analyses, no age subgroups showed a significant risk of SSNHL in the Herpes zoster group.Conclusions: After adjusting for confounding factors, the risk of SSNHL did not increase in the Herpes zoster group compared with the control group.
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Affiliation(s)
- So Young Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Chang-Ho Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Chanyang Min
- Hallym Data Science Laboratory, Hallym University College of Medicine, Anyang, Korea.,Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - Hyung-Jong Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Hallym University College of Medicine, Anyang, Korea
| | - Hyo Geun Choi
- Hallym Data Science Laboratory, Hallym University College of Medicine, Anyang, Korea.,Department of Otorhinolaryngology-Head and Neck Surgery, Hallym University College of Medicine, Anyang, Korea
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Cao Z, Gao J, Huang S, Xiang H, Zhang C, Zheng B, Zhan X, Chen R, Chen B. Genetic Polymorphisms and Susceptibility to Sudden Sensorineural Hearing Loss: A Systematic Review. Audiol Neurootol 2019; 24:8-19. [PMID: 30870848 DOI: 10.1159/000497032] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 01/16/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Recently, genetic factors have been considered as an important risk factor for sudden sensorineural hearing loss (SSNHL). Many studies analyzed the association between SSNHL and polymorphisms. However, most of them gave inconclusive results. Key Message: We performed a systematic review to find out the association between polymorphisms and susceptibility to SSNHL. Finally, 47 studies involving 5,230 SSNHL patients and 68 genes were included for analysis and discussion of results. Polymorphisms in 26 genes have been suggested to be correlated with the susceptibility to SSNHL. SUMMARY Although a great number of studies support that polymorphisms in genes are associated with susceptibility to SSNHL, we need large multicenter studies, which evaluate multiple single nucleotide polymorphisms in SSNHL patients, to find real genetic risk factors for susceptibility to SSNHL. This is very helpful in designing more effective prevention and treatment strategies for patients with SSNHL.
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Affiliation(s)
- Zaizai Cao
- Department of Otolaryngology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Jinjian Gao
- Department of Otolaryngology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Saiyu Huang
- Department of Otolaryngology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Haijie Xiang
- Department of Otolaryngology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Chuqin Zhang
- Department of Otolaryngology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Bo Zheng
- Department of Otolaryngology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Xiang Zhan
- Department of Otolaryngology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Ruru Chen
- Department of Otolaryngology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Bobei Chen
- Department of Otolaryngology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China, .,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China,
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Ozdamar K, Sen A, Gonel A. Assessment of Oxidative Stress in Patients with Sudden Hearing Loss: A Non-randomized Prospective Clinical Study. Indian J Otolaryngol Head Neck Surg 2019; 71:1543-1548. [PMID: 31750214 DOI: 10.1007/s12070-019-01623-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 02/12/2019] [Indexed: 12/22/2022] Open
Abstract
The etiology of sudden hearing loss (SHL) has not been fully elucidated. Previous studies claimed that different etiological factors may play a role in the pathogenesis of SHL. The aim of the present study is to investigate the presence of oxidative stress (OS) in SHL cases using thiol-disulfide balance. In addition, total oxidant status (TOS), total antioxidant status (TAS), oxidative stress index (OSI) and lipid hydroperoxide levels (LOOH) were investigated. A total of 30 cases (15 female, 15 male, mean age 48.9 ± 8.1 years, age range: 36-68 years) were included in the study. Thiol and disulfide amounts, thiol/disulfide ratios, TOS, TAS, OSI and LOOH scores of the case group and control group were compared. Native thiol (SH) and total thiol (SH + SH) values were significantly lower in the SHL group than in the control group (p = 0.028 and p = 0.044, respectively). The LOOH value, TOS value and OSI value were significantly higher in the SHL group than in the control group (all p values < 0.05). The TAS value was significantly lower in the SHL group than in the control group (p = 0.0001). The present study has presented that the thiol-disulfide balance was impaired in SHL cases. OS may play a role in the development of SHL.
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Affiliation(s)
- Kadir Ozdamar
- 1Medical Faculty, Department of Otorhinolaryngology - Head and Neck Surgery, Harran University, Şanlıurfa, Turkey
- Harran Tıp Fakültesi Araştırma ve Uygulama Hastanesi, Mardin Yolu 22 Km Osmanbey Kampüsü, Şanlıurfa, Turkey
| | - Alper Sen
- 1Medical Faculty, Department of Otorhinolaryngology - Head and Neck Surgery, Harran University, Şanlıurfa, Turkey
| | - Ataman Gonel
- 2Medical Faculty, Department of Biochemistry, Harran University, Şanlıurfa, Turkey
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Fasano T, Pertinhez TA, Tribi L, Lasagni D, Pilia A, Vecchia L, Baricchi R, Bianchin G. Laboratory assessment of sudden sensorineural hearing loss: A case-control study. Laryngoscope 2017; 127:2375-2381. [DOI: 10.1002/lary.26514] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 11/17/2016] [Accepted: 12/02/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Tommaso Fasano
- Clinical Chemistry and Endocrinology Laboratory; Arcispedale Santa Maria Nuova-Scientific Institute for Research, Hospitalization and Health Care; Reggio Emilia Italy
| | - Thelma A. Pertinhez
- Transfusion Medicine Unit; Arcispedale Santa Maria Nuova- Scientific Institute for Research, Hospitalization and Health Care; Reggio Emilia Italy
- Department of Biomedical, Biotechnological, and Translational Sciences; University of Parma; Parma Italy
| | - Lorenzo Tribi
- Department of Otolaryngology and Audiology; Arcispedale Santa Maria Nuova-Scientific Institute for Research, Hospitalization and Health Care; Reggio Emilia Italy
| | - Daniela Lasagni
- Transfusion Medicine Unit; Arcispedale Santa Maria Nuova- Scientific Institute for Research, Hospitalization and Health Care; Reggio Emilia Italy
| | - Annalisa Pilia
- Clinical Chemistry and Endocrinology Laboratory; Arcispedale Santa Maria Nuova-Scientific Institute for Research, Hospitalization and Health Care; Reggio Emilia Italy
| | - Luigi Vecchia
- Clinical Chemistry and Endocrinology Laboratory; Arcispedale Santa Maria Nuova-Scientific Institute for Research, Hospitalization and Health Care; Reggio Emilia Italy
| | - Roberto Baricchi
- Transfusion Medicine Unit; Arcispedale Santa Maria Nuova- Scientific Institute for Research, Hospitalization and Health Care; Reggio Emilia Italy
| | - Giovanni Bianchin
- Department of Otolaryngology and Audiology; Arcispedale Santa Maria Nuova-Scientific Institute for Research, Hospitalization and Health Care; Reggio Emilia Italy
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Abstract
The comorbidities related to obesity are already extensive, but as the prevalence of obesity increases globally, so do the number of its associated conditions. The relationship between hearing impairment and obesity is a relatively recent research interest, but is significant as both conditions have the ability to substantially reduce an individual's quality of life both physically and psychologically. Obesity has a significant effect on vascular function, and this may have an impact on highly vascular organs such as the auditory system. This review aims to provide an overview of the existing literature surrounding the association between hearing loss and obesity, in order to emphasise these two highly prevalent conditions, and to identify areas of further investigation. Our literature search identified a total of 298 articles with 11 articles of relevance to the review. The existing literature in this area is sparse, with interest ranging from obesity and its links to age-related hearing impairment (ARHI) and sudden sensorineural hearing loss (SSNHL), to animal models and genetic syndromes that incorporate both disorders. A key hypothesis for the underlying mechanism for the relationship between obesity and hearing loss is that of vasoconstriction in the inner ear, whereby strain on the capillary walls due to excess adipose tissue causes damage to the delicate inner ear system. The identified articles in this review have not established a causal relationship between obesity and hearing impairment. Further research is required to examine the emerging association between obesity and hearing impairment, and identify its potential underlying mechanisms.
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Affiliation(s)
- N Dhanda
- Clinical Research Core, Weill Cornell Medicine-Qatar, Education City, Qatar Foundation, Doha, Qatar
| | - S Taheri
- Clinical Research Core, Weill Cornell Medicine-Qatar, Education City, Qatar Foundation, Doha, Qatar.,Department of Medicine, Weill Cornell Medicine, New York, NY, USA
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Yingzhu K, Shujuan G, Chengcheng L, Yi D. [Research progression of the relationship between integrin α2β1 and drug-induced gingival overgrowth]. Hua Xi Kou Qiang Yi Xue Za Zhi 2017; 35:99-103. [PMID: 28326736 DOI: 10.7518/hxkq.2017.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Drug-induced gingival overgrowth (DIGO) is characterized by fibrous gingival hyperplasia and increased gingival volume. DIGO is histologically associated with proliferation of cells and deposition of extracellular matrices, particularly collagen. Integrin α2β1 is related to collagen phagocytosis and involved in the occurrence and progression of DIGO. This paper reviews the progress of research on the relationship between integrin α2β1 and DIGO.
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Affiliation(s)
- Kang Yingzhu
- State Key Laboratory of Oral Diseases, Dept. of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Guo Shujuan
- State Key Laboratory of Oral Diseases, Dept. of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Liu Chengcheng
- State Key Laboratory of Oral Diseases, Dept. of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Ding Yi
- State Key Laboratory of Oral Diseases, Dept. of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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Koçak HE, Filiz Acıpayam AŞ, Acıpayam H, Çakıl Erdoğan B, Alakhras WME, Kıral MN, Keskin M, Kayhan FT. Microvascular dysfunction affects the development and prognosis of sudden idiopathic hearing loss. Clin Otolaryngol 2016; 42:602-607. [PMID: 27762099 DOI: 10.1111/coa.12780] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2016] [Indexed: 12/20/2022]
Abstract
OBJECTIVE The aim of our study is to investigate whether systemic microvascular function affects the development and prognosis of sudden idiopathic hearing loss (SHL). TYPE OF STUDY A prospective case-control study. MATERIALS AND METHODS Fifty patients diagnosed with SHL at our hospital between September 2015 and May 2016 were included as the SHL group, and 50 healthy volunteers who came to the hospital for medical screening were included in the control group. Thirty-one patients from the SHL group who responded to treatment and 19 patients who did not respond to treatment were identified according to the Siegel criteria and were grouped. Patients with comorbid disorders were excluded from the study. To determine microvascular function, the videocapillaroscopic examination was conducted from the nailfold, measuring the capillary density (CD) and post-occlusive reactive hyperaemia (PORH) values and statistical analysis was performed between the groups. RESULT While CD was an average of 83.1 ± 6 in the SHL group, it was measured as 96.2 ± 10 in the control group. The CD value was significantly lower in the SHL group than the control group (P < 0.05). While the average PORH value in the SHL group was 80.5 ± 7.7, it was measured as 97.5 ± 10 in the control group. The PORH value was significantly lower in the SHL group than the control group (P < 0.05). The CD value did not differ significantly (P > 0.05) between the group that responded to treatment (83.4 ± 5.5) and the group that did not respond to treatment (82.7 ± 6.9). The PORH value was significantly lower (P < 0.05) in the group that did not respond to treatment (75.2 ± 7.9) than the group that did (83.8 ± 5.6). CONCLUSION To our best knowledge, our study is the first study in the literature. Although the role of specific mechanisms in SHL is not entirely understood, the capillaroscopic examination can show the importance of microvascular function in SHL. CD and PORH values were found to be low in SHL patients, and a low PORH value was found to be a factor of poor prognosis.
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Affiliation(s)
- H E Koçak
- Department of Otorhinolaryngology - Head and Neck Surgery, Bakırköy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey
| | - A Ş Filiz Acıpayam
- Department of Dermatology, Bakırköy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey
| | - H Acıpayam
- Department of Otorhinolaryngology - Head and Neck Surgery, Bakırköy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey
| | - B Çakıl Erdoğan
- Department of Dermatology, Bakırköy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey
| | - W M E Alakhras
- Department of Otorhinolaryngology - Head and Neck Surgery, Bakırköy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey
| | - M N Kıral
- Department of Otorhinolaryngology - Head and Neck Surgery, Bakırköy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey
| | - M Keskin
- Department of Otorhinolaryngology - Head and Neck Surgery, Bakırköy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey
| | - F T Kayhan
- Department of Otorhinolaryngology - Head and Neck Surgery, Bakırköy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey
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Pirodda A, Brandolini C, Raimondi MC, Pelligra I, Strocchi E, Cicero AF, Rosticci M, Borghi C. Cardiovascular risk factors and hearing impairment: a non-automatic correlation. Hearing, Balance and Communication 2016. [DOI: 10.1080/21695717.2016.1236597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Antonio Pirodda
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Cristina Brandolini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Maria Chiara Raimondi
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Irene Pelligra
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Enrico Strocchi
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Arrigo F.G. Cicero
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Martina Rosticci
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Claudio Borghi
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
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Abstract
Aspirin is the most widely prescribed drug for the primary and secondary prevention of cardiovascular and cerebrovascular diseases. However, a large number of patients continue to experience thromboembolic events despite aspirin therapy, a phenomenon referred to as aspirin resistance or treatment failure. Aspirin resistance is often observed along with a high incidence of unstable plaque, cardiovascular events and cerebrovascular accident. Studies have shown that aspirin reduces the production of TXA2, but not totally inhibits the activation of platelets. In this review, we analyze current and past research on aspirin resistance, presenting important summaries of results regarding the potential contributive roles of single nucleotide polymorphisms, inflammation, metabolic syndrome and miRNAs. The aim of this article is to provide a brief review on aspirin resistance and platelet function, which will provide important insights into the research of aspirin resistance.
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Affiliation(s)
- Gang Du
- Department of Cardiology, The First Affiliated Hospital of Jinan University, Guangzhou, China; Center for Health Informatics and Bioinformatics, New York University School of Medicine, New York, NY, USA
| | - Qiang Lin
- Department of Rehabilitation, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jinhua Wang
- Center for Health Informatics and Bioinformatics, New York University School of Medicine, New York, NY, USA; Laura and Isaac Perlmutter Cancer Center, New York University School of Medicine, New York, NY, USA; Departments of Pediatrics, New York University School of Medicine, New York, NY 10016, USA.
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Pirodda A, Brandolini C, Borghi C. The influence of systemic circulation on hearing: The reliability of a different impact of microcirculatory defects and atherosclerosis. Med Hypotheses 2016; 91:6-8. [DOI: 10.1016/j.mehy.2016.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 03/25/2016] [Indexed: 11/15/2022]
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Chung JH, Lee SH, Park CW, Kim C, Park JK, Shin JH. Clinical significance of arterial stiffness in idiopathic sudden sensorineural hearing loss. Laryngoscope 2016; 126:1918-22. [DOI: 10.1002/lary.25853] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 12/01/2015] [Accepted: 12/07/2015] [Indexed: 01/03/2023]
Affiliation(s)
- Jae Ho Chung
- Department of Otolaryngology-Head and Neck Surgery; School of Medicine, Hanyang University; Seoul Republic of Korea
| | - Seung Hwan Lee
- Department of Otolaryngology-Head and Neck Surgery; School of Medicine, Hanyang University; Seoul Republic of Korea
| | - Chul Won Park
- Department of Otolaryngology-Head and Neck Surgery; School of Medicine, Hanyang University; Seoul Republic of Korea
| | - Changsun Kim
- Department of Emergency Medicine; Hanyang University Guri Hospital; Gyungi-do Republic of Korea
| | - Jin-Kyu Park
- Division of Cardiology; Department of Internal Medicine; Hanyang University College of Medicine; Seoul Republic of Korea
| | - Jeong-Hun Shin
- Division of Cardiology; Department of Internal Medicine; Hanyang University College of Medicine; Seoul Republic of Korea
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Lee JS, Kim DH, Lee HJ, Kim HJ, Koo JW, Choi HG, Park B, Hong SK. Lipid profiles and obesity as potential risk factors of sudden sensorineural hearing loss. PLoS One 2015; 10:e0122496. [PMID: 25860024 PMCID: PMC4393091 DOI: 10.1371/journal.pone.0122496] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 02/22/2015] [Indexed: 01/20/2023] Open
Abstract
Objectives The objective of our study was to establish whether increased lipid profiles and obesity affect the prevalence and prognosis of sudden sensorineural hearing loss (SSNHL). Methods This was a case-controlled study with a longitudinal design. According to our criteria, 324 patients with SSNHL were included in this study. To manage potential covariates, 972 subjects with normal hearing from the Korean National Health and Nutrition Examination Survey were matched as control group according to their propensity scores. Age, level of total cholesterol (TC), high density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), triglycerides (TG), and body mass index (BMI) were obtained from the clinical data. Multivariate logistic regression analysis was used to investigate the association between SSNHL and lipid profiles or obesity in the 1296 subjects. Multivariate Cox regression analysis was used to determine whether lipid profiles and obesity are prognostic factors in patients with SSNHL. Results Mean body weight, BMI, TC, and TG were significantly higher in patients with SSNHL compared with control subjects (p<0.05). However, LDL-C values did not differ significantly between the two groups. Subjects with elevated TC and TG levels had a 2.20- (95% CI 1.50–3.24) and 1.50-fold (95% CI 1.08–2.08) increased odds, respectively, of SSNHL compared with subjects with normal TC and TG levels. Subjects with grade III BMI had a 1.59-fold (95% CI 1.17–2.16) increased odds of SSNHL. Multivariate Cox regression analyses revealed that BMI was an independent risk factor of treatment outcome, as patients with BMI ≥27.5 were less likely to achieve complete recovery than those with BMI <27.5 (p<0.05). Conclusions The results of this study revealed that elevated TC and TG levels and increased BMI are significantly associated with the prevalence of SSNHL and its prognosis, indicating that vascular compromise may play an important role in the pathogenesis of SSNHL.
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Affiliation(s)
- Joong Seob Lee
- Department of Otorhinolaryngology-Head & Neck Surgery, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea
| | - Dong Hyun Kim
- Department of Otorhinolaryngology-Head & Neck Surgery, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea
| | - Hyo Jeong Lee
- Department of Otorhinolaryngology-Head & Neck Surgery, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea
| | - Hyung Jong Kim
- Department of Otorhinolaryngology-Head & Neck Surgery, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea
| | - Ja Won Koo
- Department of Otorhinolaryngology-Head & Neck Surgery, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Hyo Geun Choi
- Department of Otorhinolaryngology-Head & Neck Surgery, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea
| | - Bumjung Park
- Department of Otorhinolaryngology-Head & Neck Surgery, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea
| | - Sung Kwang Hong
- Department of Otorhinolaryngology-Head & Neck Surgery, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea
- * E-mail:
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Wittig J, Wittekindt C, Kiehntopf M, Guntinas-Lichius O. Prognostic impact of standard laboratory values on outcome in patients with sudden sensorineural hearing loss. BMC Ear Nose Throat Disord 2014; 14:6. [PMID: 25028570 DOI: 10.1186/1472-6815-14-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 07/07/2014] [Indexed: 11/16/2022]
Abstract
Background Aim of the present study was to evaluate prognostic factors, in particular standard laboratory parameters, for better outcome after idiopathic sudden sensorineural hearing loss (SSNHL). Methods Using a retrospective review, 173 patients were included presenting between 2006 and 2009 with unilateral SSNHL, ≥30 dB bone conduction in three succeeding frequencies between 0.125 to 8 kHz in pure tone audiometry (PTA), and a time interval between first symptoms and diagnostics ≤ 4 weeks. Hearing gain of <10 dB versus ≥10 dB in the affected ear in 6PTA values was the primary outcome criterion. Univariate and multivariate statistical tests were used to analyze predictors for better outcome. Results The initial hearing loss was 50.6 ± 27.2 dB. The absolute hearing gain was 15.6 ± 20.1 dB. Eighty-one patients (47%) had a final hearing gain of ≥10 dB. Low-frequency hearing loss (p <0.0001); start of inpatient treatment <4 days after onset (p = 0.018); first SSNHL (versus recurrent SSNHL, p = 0.001); initial hearing loss ≥ 60 dB (p < 0.0001); an initial quick value lower than the reference values (p = 0.040); and a pretherapeutic hyperfibrinogenemia (p = 0.007) were significantly correlated to better outcome (≥10 dB absolute hearing gain). Multivariate analysis revealed that first SSNHL (p = 0.004), start of treatment <4 days after onset (p = 0.015), initial hearing loss ≥ 60 dB (p = 0.001), and hyperfibrinogenemia (p = 0.032) were independent prognostic factors for better hearing recovery. Conclusion Better hearing gain in patients with hyperfibrinogenemia might be explained by the rheological properties of the applied therapy and supports the hypothesis that SSNHL is caused in part by vascular factors.
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Lionello M, Staffieri C, Breda S, Turato C, Giacomelli L, Magnavita P, de Filippis C, Staffieri A, Marioni G. Uni- and multivariate models for investigating potential prognostic factors in idiopathic sudden sensorineural hearing loss. Eur Arch Otorhinolaryngol 2014; 272:1899-906. [DOI: 10.1007/s00405-014-2992-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 03/01/2014] [Indexed: 11/24/2022]
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Masuda M, Kanzaki J. Cause of idiopathic sudden sensorineural hearing loss: The stress response theory. World J Otorhinolaryngol 2013; 3:42-57. [DOI: 10.5319/wjo.v3.i3.42] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2013] [Revised: 06/14/2013] [Accepted: 07/25/2013] [Indexed: 02/06/2023] Open
Abstract
The stress response theory is a relatively new concept about the cause of idiopathic sudden sensorineural hearing loss (ISHL). A number of possible etiologies have been proposed in the literature, as discussed in this paper, but each proposed etiology has been both supported and refuted in the literature. However, the stress response theory can integrate hypotheses that have been advocated so far. The word “stress” refers to a constellation of physical and psychological stimuli including systemic viral and bacterial illness, systemic inflammatory disorders, and physical, mental or metabolic stress. Numerous studies have demonstrated adverse effects of systemic stress on health. Stress causes changes in the immune system and cytokine network through activation of the hypothalamus-pituitary-adrenal axis and the sympathetic nervous system. Several types of catecholamine and cytokine receptors are in the cochlea cells other than capillary cells, and then they can respond to systemic stressors. However, there are few studies examining how systemic stress is associated with cochlear dysfunction. The stress response theory addresses this question. In the theory, a variety of stressors and risk factors contribute to the onset of ISHL in varying degrees. The lateral wall of the cochlea has very unique responses to systemic stressors. It plays a critical role in causing ISHL. Systemic stressors converge at the lateral wall and trigger pathological activation of nuclear factor κ-light-chain-enhancer of activated B cells, a transcriptional factor known as a stress sensor. This activation enhances local expression of genes associated with immune and inflammatory system, resulting in cochlear dysfunction. We review the original stress response theory advocated by Adams et al and the integrative stress response theory that integrates our knowledge about the etiologies of ISHL so far.
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