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Role of Oxidative Stress and Antioxidants in Acquired Inner Ear Disorders
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- Megumi Kishimoto-Urata
- Department of Otolaryngology, Graduate School of Medicine, The University of Tokyo, Tokyo 1138655, Japan
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- Shinji Urata
- Department of Otolaryngology, Graduate School of Medicine, The University of Tokyo, Tokyo 1138655, Japan
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- Chisato Fujimoto
- Department of Otolaryngology, Graduate School of Medicine, The University of Tokyo, Tokyo 1138655, Japan
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- Tatsuya Yamasoba
- Department of Otolaryngology, Graduate School of Medicine, The University of Tokyo, Tokyo 1138655, Japan
Description
<jats:p>Oxygen metabolism in the mitochondria is essential for biological activity, and reactive oxygen species (ROS) are produced simultaneously in the cell. Once an imbalance between ROS production and degradation (oxidative stress) occurs, cells are damaged. Sensory organs, especially those for hearing, are constantly exposed during daily life. Therefore, almost all mammalian species are liable to hearing loss depending on their environment. In the auditory pathway, hair cells, spiral ganglion cells, and the stria vascularis, where mitochondria are abundant, are the main targets of ROS. Excessive generation of ROS in auditory sensory organs is widely known to cause sensorineural hearing loss, and mitochondria-targeted antioxidants are candidates for treatment. This review focuses on the relationship between acquired hearing loss and antioxidant use to provide an overview of novel antioxidants, namely medicines, supplemental nutrients, and natural foods, based on clinical, animal, and cultured-cell studies.</jats:p>
Journal
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- Antioxidants
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Antioxidants 11 (8), 1469-, 2022-07-27
MDPI AG
