耳鸣伴近正常听力的炎症横断面筛查。

Cross-sectional screening for inflammation in tinnitus with near-normal hearing.

机构信息

Department of Neurosurgery, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands; Department of Otorhinolaryngology / Head & Neck Surgery, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands; Department of Graduate School of Medical Sciences, Research School of Behavioural and Cognitive Neurosciences, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.

Department of Neurosurgery, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands; Department of Graduate School of Medical Sciences, Research School of Behavioural and Cognitive Neurosciences, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.

出版信息

Hear Res. 2024 Nov;453:109124. doi: 10.1016/j.heares.2024.109124. Epub 2024 Sep 23.

Abstract

Tinnitus is the perception of sound without an external stimulus. Recently, inflammation has been implicated in the pathophysiology of tinnitus. In tinnitus animal models, cytokine levels are increased throughout the whole auditory pathway, and microglia and astrocytes are activated. However, only a few human studies on inflammation in tinnitus were conducted, which generally did not account for confounders such as hearing loss, anxiety and depression. The current study therefore aimed to evaluate the association between inflammation and tinnitus specifically in participants with (near-)normal hearing and without signs of anxiety or depression. In this cross-sectional study, fifty tinnitus participants and fifty healthy controls completed a tinnitus questionnaire and underwent audiometric testing. Complete blood count measures were determined in blood plasma, as well as cytokine concentrations by using the enzyme-linked immunosorbent assay (ELISA) technique. Platelet count and cytokine concentrations of IL-10 and IFN-γ were lower in participants with tinnitus compared to controls, and male sex, lower MCV, lower platelet count, and lower IL-10 and IFN-γ concentrations were significant predictors of tinnitus presence. The current study shows that inflammatory parameters are altered in tinnitus patients after exclusion of important confounders such as hearing loss, anxiety, depression, and inflammatory diseases.

摘要

耳鸣是指没有外部刺激时感觉到声音。最近,炎症被认为与耳鸣的病理生理学有关。在耳鸣动物模型中,整个听觉通路中的细胞因子水平升高,小胶质细胞和星形胶质细胞被激活。然而,仅有少数关于耳鸣炎症的人类研究,这些研究通常没有考虑听力损失、焦虑和抑郁等混杂因素。因此,本研究旨在专门评估在(近)正常听力且无焦虑或抑郁迹象的参与者中,炎症与耳鸣之间的关联。在这项横断面研究中,50 名耳鸣参与者和 50 名健康对照者完成了耳鸣问卷并接受了听力测试。在血浆中测定了全血细胞计数,并用酶联免疫吸附测定(ELISA)技术测定了细胞因子浓度。与对照组相比,耳鸣参与者的血小板计数和细胞因子浓度 IL-10 和 IFN-γ 较低,男性、较低的 MCV、较低的血小板计数以及较低的 IL-10 和 IFN-γ 浓度是耳鸣存在的显著预测因素。本研究表明,在排除听力损失、焦虑、抑郁和炎症性疾病等重要混杂因素后,耳鸣患者的炎症参数发生了改变。

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