The effect of very low dose pulsed magnetic waves on cochlea

Tuhanioğlu, Birgül; Erkan, Sanem Okşan; Gürgen, Seren Gülşen; Özdaş, Talih; Görgülü, Orhan; Cicek, Figen Amber; Günay, İsmail

doi:10.1016/j.bjorl.2018.10.013

Cited by 3 publications

(5 citation statements)

References 24 publications

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“… 14 The effects of 2.45 GHz electromagnetic radiation on various body parts, such as the nervous system, tissue morphology and histology, serum biochemical parameters, metabolism, immune response, and reproductive organs, have already been established. 14 - 17 …”

Section: Discussionmentioning

confidence: 99%

“…The cochlear cells are susceptible to external factors such as acoustic trauma, metabolic diseases, drugs, trauma, and radiation. 17 Although various adverse biological effects have been observed following MW exposure, the possible ototoxic effect of wireless devices is still not well established. According to recent studies, MW emitted by Wi-Fi devices and cell phones can induce oxidative stress due to the overproduction of oxygen-derived free radicals.…”

Section: Discussionmentioning

confidence: 99%

“…In an earlier in vivo study, dose-dependent cochlear cell apoptosis of radiation was demonstrated in an experimental model. 19 According to Tuhanioglu et al, 17 pulsed magnetic fields (1.5 mT, 40 Hz) can cause auditory dysfunction and cochlea histopathological damage. They showed a significant increase of apoptosis, especially in outer hair cells, by using caspase-3, -9, and TUNEL methods as in our study.…”

Section: Discussionmentioning

confidence: 99%

“…Tuhanioğlu et al 17 studied otoacoustic emission and caspase in 40 Hz pulsed magnetic field for 1 h/day for 30 days. According to their findings, a shallow dosage magnetic field, which has lately been investigated for therapeutic applications, can produce auditory function problems and histopathologic damage in cochlea cells.…”

Section: Discussionmentioning

confidence: 99%

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Effect of 2.45 GHz Microwave Radiation on the Inner Ear: A Histopathological Study on 2.45 GHz Microwave Radiation and Cochlea

Tahir,

Karadayı,

Gürgen

et al. 2024

The Journal of International Advanced Otology

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Background: The present study aims to determine the possible low dose-dependent adverse effects of 2.45 GHz microwave exposure and Wi-Fi frequency on the cochlea. Methods: Twelve pregnant female rats (n = 12) and their male newborns were exposed to Wi-Fi frequencies with varying electric field values of 0.6, 1.9, 5, 10 V/m, and 15 V/m during the 21-day gestation period and 45 days after birth, except for the control group. Auditory brainstem response testing was performed before exposure and sacrification. After removal of the cochlea, histopathological examination was conducted by immunohistochemistry methods using caspase (cysteine-aspartic proteases, cysteine aspartates, or cysteine-dependent aspartate-directed proteases)-3, -9, and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL). Kruskal–Wallis and Wilcoxon tests and multivariate analysis of variance were used. Results: Auditory brainstem response thresholds in postexposure tests increased statistically significantly at 5 V/m and above doses. When the number of apoptotic cells was compared in immunohistochemistry examination, significant differences were found at 10 V/m and 15 V/m doses ( F (5,15) = 23.203, P = .001; Pillai’s trace = 1.912, η 2 = 0.637). As the magnitude of the electric field increased, all histopathological indicators of apoptosis increased. The most significant effect was noted on caspase-9 staining ( η 2 c9 = 0.996), followed by caspase-3 ( η 2 c3 = 0.991), and TUNEL staining ( η 2 t = 0.801). Caspase-3, caspase-9, and TUNEL-stained cell densities increased directly by increasing the electric field and power values. Conclusion: Apoptosis and immune activity in the cochlea depend on the electric field and power value. Even at low doses, the electromagnetic field in Wi-Fi frequency damages the inner ear and causes apoptosis.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Effect of 2.45 GHz Microwave Radiation on the Inner Ear: A Histopathological Study on 2.45 GHz Microwave Radiation and Cochlea

Tahir,

Karadayı,

Gürgen

et al. 2024

The Journal of International Advanced Otology

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“…Ear exposure to magnetic field forces at different intensities and frequencies had been documented with cochlear outer hair cells degeneration. Tuhanioglu et al 12 reported the effect of low-dose pulsed magnetic waves on laboratory rats cochleas exposed to 40 Hz pulsed magnetic field for 1 hr/d for 30 days. Our technique difference is that the exposure to the electromagnetic field was one single episode without pulses or continuity of the magnetic field.…”

Section: Discussionmentioning

confidence: 99%

Extraction of Aural Foreign Bodies in a Rural Setting: 10-Year Review and a Novel Method to Remove Magnetic Stones

Reyes-Chicuellar

Crossland

2021

Ear Nose Throat J

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Background: The external auditory canal’s unique anatomical characteristics made the presence of foreign bodies (FBs) a clinical challenge, particularly in rural settings without ready access to tertiary care and specialist intervention. Aims: Our study surveys the experience in aural FBs surgical management in a rural Australian tertiary center. It proposes a safe, easy, and affordable technique to remove stones from the ear canal. Methods: We have completed a 10-year retrospective surgical chart review, including 474 patients (52 adults and 428 children) requiring surgical management to remove aural FBs at the Royal Darwin Hospital, Northern Territory, Australia. We surveyed for patient demographics, foreign-body description, complications, location, and removal attempts. We identified what factors determine the need for surgical management and propose a technique for a safe, uncomplicated, and affordable removal of stones from the ear canal after applying this method in a small subgroup. Results: The most common FBs requiring surgery in children were stones. A predominance in the Aboriginal population from remote communities was found, leading to a nasal bridle magnet technique to remove stones in rural settings. This method reduces the number of extraction attempts of the most frequent FB found in children’s ears, aiming to minimize complications, negative experiences, and health cost. Conclusion: Contrary to international literature, stones were found to be the most common FB in remote aboriginal populations. The proposed technique reduces the number of extraction attempts of the most frequent FB found in children’s ears, aiming to minimize complications, negative experiences, and health cost.

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Effects of extremely low-frequency (50 Hz) electromagnetic fields on vital organs of adult Wistar rats and viability of mouse fibroblast cells

Tekam,

Majumdar,

Kumari

et al. 2024

Radiation Protection Dosimetry

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In recent years, scientific communities have been concerned about the potential health effects of periodic electromagnetic field exposure (≤1 h/d). The objective of our study is to determine the impact of extremely low-frequency pulsed electromagnetic fields (ELF-PEMF) (1–3 mT, 50 Hz) on mouse fibroblast (red fluorescent protein (RFP)-L929) cells and adult Wistar rats to gain a comprehensive understanding of biological effects. We observed that RFP-L929 exhibits no significant changes in cell proliferation and morphology but mild elevation in aspartate aminotransferases, alanine aminotransferases, total bilirubin, serum creatinine, and creatine kinase-myocardial band levels in ELF-PEMF exposed groups under in vitro and in vivo conditions. However, the histological examination showed no significant alterations in tissue structure and morphologies. Our result suggests that 50-Hz ELF-PEMF exposure (1–3 mT, 50 Hz) with duration (<1 h/d) can trigger mild changes in biochemical parameters, but it is insufficient to induce any pathological alterations.

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The effect of very low dose pulsed magnetic waves on cochlea

Cited by 3 publications

References 24 publications

Effect of 2.45 GHz Microwave Radiation on the Inner Ear: A Histopathological Study on 2.45 GHz Microwave Radiation and Cochlea

Effect of 2.45 GHz Microwave Radiation on the Inner Ear: A Histopathological Study on 2.45 GHz Microwave Radiation and Cochlea

Extraction of Aural Foreign Bodies in a Rural Setting: 10-Year Review and a Novel Method to Remove Magnetic Stones

Effects of extremely low-frequency (50 Hz) electromagnetic fields on vital organs of adult Wistar rats and viability of mouse fibroblast cells

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