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Effects of Exposure to GSM Mobile Phone Base Station Signals on Salivary Cortisol,Alpha-Amylase,and Immunoglobulin A

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Biomedical and Environmental Sciences 2010年第3期23卷 199-207页

作者： CHRISTOPH AUGNER GERHARD W.HACKER GERD OBERFELD MATTHIAS FLORIAN WOLFGANG HITZL jorg hutter GERNOT PAUSER IGGMB-Research Institute for Frontier Questions of Medicine and Biotechnology Salzburg Federal Hospital-University Clinics of the Paracelsus Medical Private UniversitySalzburg Federal Clinics(SALK)SalzburgAustria Public Health Department Salzburg SalzburgAustria Research office Paracelsus Medical Private UniversityComma SalzburgAustria University Clinic of Surgery Salzburg Federal Hospital University Clinics of the Paracelsus Medical Private UniversitySalzburg Federal Clinics(SALK)SalzburgAustria University Clinic for Anesthesiology Perioperative Medicine and General Intensive CareSalzburg Federal Hospital-University Clinics of the Paracelsus Medical Private UniversitySalzburg Federal Clinics(SALK)SalzburgAustria

Objective The present study aimed to test whether exposure to radiofrequency electromagnetic fields （RF-EMF） emitted by mobile phone base stations may have effects on salivary alpha-amylase, immunoglobulin A （IgA）, and cortisol levels. Methods Fifty seven participants were randomly allocated to one of three different experimental scenarios （22 participants to scenario 1, 26 to scenario 2, and 9 to scenario 3）. Each participant went through five 50-minute exposure sessions. The main RF-EMF source was a GSM-900-MHz antenna located at the outer wall of the building. In scenarios 1 and 2, the first, third, and fifth sessions were ＂low＂（median power flux density 5.2 μW/m^2） exposure. The second session was ＂high＂（2126.8 μW/m^2）, and the fourth session was ＂medium＂（153.6 μW/m^2） in scenario 1, and vice versa in scenario 2. Scenario 3 had four ＂low＂ exposure conditions, followed by a ＂high＂ exposure condition. Biomedical parameters were collected by saliva samples three times a session. Exposure levels were created by shielding curtains. Results In scenario 3 from session 4 to session 5 （from ＂low＂ to ＂high＂ exposure）, an increase of cortisol was detected, while in scenarios 1 and 2, a higher concentration of alpha-amylase related to the baseline was identified as compared to that in scenario 3. IgA concentration was not significantly related to the exposure. Conclusions RF-EMF in considerably lower field densities than ICNIRP-gnidelines may influence certain psychobiological stress markers.

关键词： GSM base stations Mobile phone Salivary IgA Alpha amylase Cortisol Radiofrequency electromagnetic fields (RF-EMF)

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