Effects of extremely low frequency electromagnetic fields on distortion product otoacoustic emissions in rabbits

Budak, Bilgehan; Budak, Gürer G.; Öztürk, Güler; Muluk, Nuray Bayar; Apan, Alpaslan; Seyhan, Nesrin

doi:10.1016/j.anl.2008.04.011

Cited by 6 publications

(7 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hamernik et al (1980) found that a damaged cochlea and vibrated membranous labyrinth were the main causes for vibration-induced cochlear function changes after low-frequency vibration [9]. Consistent with the results of this study, several factors were found to be associated with the enhanced DPOAE response amplitudes such as hypoxia [23], low frequency electromagnetic fields [24,25], and induced labyrinthitis [26,27], and some ototoxic drugs [26]. By contrast, some other studies reported that the DPOAE response amplitudes were significantly depressed following a number of factors including the administration of ototoxic drugs [28,29], acoustic trauma or noise overexposure [29,30], Meniere’s disease [31], sudden idiopathic sensorineural hearing loss [32], acoustic neuroma [33], presbycusis [34], and hereditary hearing disorders [35].…”

Section: Discussionsupporting

confidence: 83%

RETRACTED ARTICLE: Assessment of the influence of whole body vibration on Cochlear function

Moussavi-Najarkola

Khavanin

Mirzaei

et al. 2012

J Occup Med Toxicol

View full text Add to dashboard Cite

BackgroundWhole body vibration (WBV) is a potentially harmful consequence resulting from the dissipation of energy by industrial machineries. The result of WBV exposure on the auditory system remains unknown. The objective of the present research was to evaluate the influence of WBV on cochlear function, in particular outer hair cell function. It is hypothesized that WBV impairs cochlear function resulting in decreased Distortion Product Otoacoustic Emission (DPOAE) levels (Ldp) in rabbits subjected to WBV.MethodsTwelve rabbits were equally divided into vibration and control groups. Animals in vibration group were exposed to 1.0 ms-2 r.m.s vertical WBV at 4–8 Hz for 8 h/day during 5 consecutive days. Outer hair cell function was assessed by comparing repeated-measurements of DPOAE levels (Ldp) across a range of f2 frequencies in rabbits both exposed and unexposed to WBV. DPOAE level shifts (LSdp) were compared across ears, frequencies, groups, and times.ResultsNo differences were seen over time in DPOAE levels in the non-exposed rabbits (p = 0.082). Post-exposure Ldp in rabbits exposed to WBV were significantly increased at all test frequencies in both ears compared to baseline measures (p = 0.021). The greatest increase in Ldp following exposure was seen at 5888.5 Hz (mean shift = 13.25 dB). Post-exposure Ldp in rabbits exposed to WBV were not significantly different between the right and left ears (p = 0.083).ConclusionWBV impairs cochlear function resulting in increased DPOAE responses in rabbits exposed to WBV. DPOAE level shifts occurred over a wide range of frequencies following prolonged WBV in rabbits.

show abstract

Section: Discussionsupporting

confidence: 83%

RETRACTED ARTICLE: Assessment of the influence of whole body vibration on Cochlear function

Moussavi-Najarkola

Khavanin

Mirzaei

et al. 2012

J Occup Med Toxicol

View full text Add to dashboard Cite

show abstract

“…Although some studies show that they do not cause any difference in hearing, some other studies show that they have negative effects. 14 , 15 , 16 , 17 , 18…”

Section: Discussionmentioning

confidence: 99%

The effect of very low dose pulsed magnetic waves on cochlea

Tuhanioğlu

Erkan

Gürgen

et al. 2019

Brazilian Journal of Otorhinolaryngology

View full text Add to dashboard Cite

“…A recent study [179] concluded that higher ELF-EMF exposure at 50 Hz, 10.182 kV/m coupled to 4.45 pT MF may give rise to adverse auditory effects especially to the organ of Corti and outer hair cells as a result of decreased distortion product auto acoustic emission amplitudes in higher frequency region localized in basal turn of cochlea in rabbits which have also resemblance with human's frequency spectra. As regards RFR-EMF, MP use has been associated with tinnitus and acoustic neuroma [38,41].…”

Section: Auditory and Ocular Effectsmentioning

confidence: 99%

“…Ear is the first biological structure to be hit by EMFs from MP. In addition, relatively greater vulnerability of cochlear outer hair cells to injuries from a diversity of exogenous and endogenous agents makes the system a victim of radiation emissions [179,180]. These days, about 50% of world's population possesses a MP [30] and even greater than that are experiencing EMF emissions through "passive mobile phoning" [181].…”

Section: Auditory and Ocular Effectsmentioning

confidence: 99%

“…These days, about 50% of world's population possesses a MP [30] and even greater than that are experiencing EMF emissions through "passive mobile phoning" [181]. Hearing problems reported in few observational studies [50] have also been investigated to occur in animals [179] with parallel contradictions [180,182]. Studies with ten minutes acute MP radiation exposures have resulted in no immediate effect on hearing threshold level of pure tone audiometry, transient evoked otoacoustic emissions [183], auditory brain stem response [184], and any depreciation in hearing in young human volunteers.…”

Section: Auditory and Ocular Effectsmentioning

confidence: 99%

See 1 more Smart Citation

Health Implications of Electromagnetic Fields, Mechanisms of Action, and Research Needs

Singh

Kapoor

2014

Advances in Biology

View full text Add to dashboard Cite

Electromagnetic fields (EMF) have been implicated to influence a range of bodily functions. Given their ubiquitous nature, widespread applications, and capability to produce deleterious effects, conclusive investigations of the health risks are critical. Accordingly, this paper has been constructed to weigh the bioeffects, possible biointeraction mechanisms, and research areas in bioelectromagnetics seeking immediate attention. The several gaps in the existing knowledge do not permit one to reach a concrete conclusion but possibility for harmful effects cannot be underestimated in absence of consistent findings and causal mechanisms. Several studies with appropriate methodologies reflect the capacity of electromagnetic radiations to cause adverse health effects and there are several credible mechanisms that can account for the observed effects. Hence, need of the hour is to activate comprehensive well-coordinated blind scientific investigations, overcoming all limitations and demerits of previous investigations especially replication studies to concretize the earlier findings. Furthermore, appropriate exposure assessment is crucial for identification of dose-response relation if any, and the elucidation of biological interaction mechanism. For the time being, the public should follow the precautionary principle and limit their exposure as much as possible.

show abstract

Effects of extremely low frequency electromagnetic fields on distortion product otoacoustic emissions in rabbits

Cited by 6 publications

References 33 publications

RETRACTED ARTICLE: Assessment of the influence of whole body vibration on Cochlear function

RETRACTED ARTICLE: Assessment of the influence of whole body vibration on Cochlear function

The effect of very low dose pulsed magnetic waves on cochlea

Health Implications of Electromagnetic Fields, Mechanisms of Action, and Research Needs

Contact Info

Product

Resources

About