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Influences of exposure to 915-MHz radiofrequency identification signals on serotonin metabolites in rats: a pilot study

Authors
Kim, HS  | Paik, MJ | Seo, C | Choi, HD | Pack, JK | Kim, N | Ahn, YH
Citation
International journal of radiation biology, 97(2). : 282-287, 2021
Journal Title
International journal of radiation biology
ISSN
0955-30021362-3095
Abstract
PURPOSE: The influences of radiofrequency electromagnetic exposure on animal health, particularly on serotonin metabolism, are not well-elucidated. In this in vivo study, we studied the influences of exposure to radiofrequency identification (RFID) signals on serotonin metabolism. MATERIALS AND METHODS: Twenty-two male Sprague-Dawley rats were assigned to sham (n = 10) and RFID-exposed (n = 12) groups. Rats in the RFID-exposed group were exposed to RFID signals at an average whole-body specific absorption rate of 2 W/kg for 8 h/day, 5 days/week for 2 weeks. Before and after RFID exposure, 24-h urine was collected from each rat. Urinary tryptophan, 5-hydroxytryptophan, serotonin, 5-hydroxyindoleacetic acid, and 5-methoxyindole-3-acetic acid concentrations were examined using gas chromatography-mass spectrometry, and changes in the patterns of values were compared between the two groups. RESULTS: Urinary levels of serotonin decreased by 20% (p = .041, Student's t-test) and 40% (p = .024, Student's t-test) in both the sham and RFID-exposed groups, respectively. The level of 5-methoxyindole-3-acetic acid decreased by 30% in the RFID-exposed group (p = .039, Student's t-test). CONCLUSION: Our results indicate that exposure to RFID signals at a specific absorption rate of 2 W/kg is sufficient to alter serotonin metabolism in rats regardless of whether the exposure level is considered biohazardous.
Keywords

MeSH

DOI
10.1080/09553002.2021.1844336
PMID
33135949
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Neurosurgery
Ajou Authors
김, 혜선  |  안, 영환
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