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학술지 Influences of Exposure to 915-MHz Radiofrequency Identification Signals on Serotonin Metabolites in Rats: A Pilot Study
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김혜선, 백만정, 서찬, 최형도, 백정기, 김남, 안영환
International Journal of Radiation Biology, v.97 no.2, pp.282-287
Taylor & Francis
20HH3900, 복합 전파환경에서의 국민건강 보호 기반 구축 사업, 최형도
Purpose: The influences of radiofrequency electromagnetic exposure on animal health, particularly on serotonin metabolism, are not well-elucidated. In this in혻vivo study, we studied the influences of exposure to radiofrequency identification (RFID) signals on serotonin metabolism. Materials and methods: Twenty-two male Sprague?밆awley 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.
Electromagnetic fields, rats, serotonin
KSP 제안 키워드
5-hydroxytryptophan, Acetic acid(AA), Animal health, Electromagnetic Field, Electromagnetic exposure, Gas chromatography(GC), Passive radio frequency identification(RFID), Pilot Study, exposure levels, gas chromatography-mass spectrometry(GC-MS), specific absorption rates(SAR)