Abstract

Purpose

The effects of the electromagnetic (EM) radiation emitted by a mobile phone on the central auditory system of rabbits are investigated in this paper. Auditory brainstem response (ABR) measurements were performed before and after short-term exposure to EM radiation.

Materials and methods

Excitation was provided by a GSM-1800 emitter placed in contact with the (randomly selected) ear of the anesthetized rabbit/subject. The latency of waves I, II, III, IV, V and the interpeak latencies I-III, I-V, III-V were recorded, for both ears, before (baseline recordings) and after 1, 15, 30, 45 and 60 minutes of exposure to the EM radiation. The repeated measures one-way analysis of variance (ANOVA) followed by the post hoc Tukey test for pairwise comparisons was performed in order to decide about the significance of the results.

Results

The statistical tests indicated that, as regards the ear ipsilateral to the radiating module, the mean latencies of waves I, II, III, IV, V, I-III, I-IV after 60 min exposure, the mean latencies of waves I, III, IV, V, I-III, I-IV after 45 min exposure and the mean latencies of waves I, III, IV, V, I-IV after 30 min exposure, were significantly prolonged compared to the corresponding baseline values. Statistically significant differences were also found for certain peak and interpeak latencies for 60 min exposure as compared with the corresponding results for 1 min and 15 min exposure. No statistically significant delay was observed for the latencies before and after the exposure, for the ear contralateral to the radiation source.

Conclusions

Although we found that more than 30 min exposure to GSM-1800 radiation resulted in prolongation of certain ABR components of rabbits, further investigation may be needed into the potential adverse effects on the auditory pathways.

中文翻译：

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短期GSM-1800辐射对家兔听觉系统潜在不良影响的实验研究

摘要

目的

本文研究了手机发出的电磁（EM）辐射对兔子中枢听觉系统的影响。在短期暴露于 EM 辐射之前和之后进行听觉脑干反应 (ABR) 测量。

材料和方法

由与麻醉兔/受试者的（随机选择的）耳朵接触的 GSM-1800 发射器提供激励。记录了双耳在 1、15、30、45 和 60 分钟之前（基线记录）和之后的 I、II、III、IV、V 波的潜伏期和 I-III、IV、III-V 波的波峰间潜伏期暴露于 EM 辐射。进行重复测量单向方差分析 (ANOVA)，然后进行事后 Tukey 检验以进行成对比较，以确定结果的显着性。

结果

统计测试表明，对于与辐射模块同侧的耳朵，暴露 60 分钟后波 I、II、III、IV、V、I-III、I-IV 的平均潜伏期，I 波的平均潜伏期，与相应的基线值相比，暴露 45 分钟后的 III、IV、V、I-III、I-IV 和暴露 30 分钟后的波 I、III、IV、V、I-IV 的平均潜伏期显着延长。与 1 分钟和 15 分钟暴露的相应结果相比，60 分钟暴露的某些峰和峰间潜伏期也发现了统计学上的显着差异。对于辐射源的对侧耳朵，在暴露前后的潜伏期没有观察到统计学上显着的延迟。

结论

虽然我们发现 30 分钟以上的 GSM-1800 辐射暴露导致兔子某些 ABR 成分的延长，但可能需要进一步调查对听觉通路的潜在不利影响。