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Journal Article
Effect of Exposure to a Radiofrequency Electromagnetic Field on Body Temperature in Anesthetized and Non‐Anesthetized Rats
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- Authors
- Hye Sun Kim, Yu Hee Lee, Hyung-Do Choi, Ae-Kyoung Lee, Sang Bong Jeon, Jeong-Ki Pack, Nam Kim, Young Hwan Ahn
- Issue Date
- 2020-02
- Citation
- Bioelectromagnetics, v.41, no.2, pp.104-112
- ISSN
- 0197-8462
- Publisher
- Wiley
- Language
- English
- Type
- Journal Article
- Abstract
- Exposure to a radiofrequency (RF) signal at a specific absorption rate (SAR) of 4 W/kg can increase the body temperature by more than 1 °C. In this study, we investigated the effect of anesthesia on the body temperature of rats after exposure to an RF electromagnetic field at 4 W/kg SAR. We also evaluated the influence of body mass on rats?? body temperature. Rats weighing 225 and 339 g were divided into sham- and RF-exposure groups. Each of the resulting four groups was subdivided into anesthetized and non-anesthetized groups. The free-moving rats in the four RF-exposure groups were subjected to a 915 MHz RF identification signal at 4 W/kg whole-body SAR for 8 h. The rectal temperature was measured at 1-h intervals during RF exposure using a small-animal temperature probe. The body temperatures of non-anesthetized, mobile 225 and 339 g rats were not significantly affected by exposure to an RF signal. However, the body temperatures of anesthetized 225 and 339 g rats increased by 1.9 °C and 3.3 °C from baseline at 5 and 6 h of RF exposure, respectively. Three of the five 339 g anesthetized and exposed rats died after 6 h of RF exposure. Thus, anesthesia and body mass influenced RF exposure-induced changes in the body temperature of rats. Bioelectromagnetics. 2020;41:104??112. © 2019 Bioelectromagnetics Society.
- KSP Keywords
- 915 MHz, Body mass, Electromagnetic Field(EMF), Free-moving, RF exposure, RF signal, Radio Frequency IDentification(RFID), Rectal temperature, Temperature probe, Whole-body, body temperature