Due to a lack of financial resources, we unfortunately have to suspend the import of new articles regarding radio frequency and mobile communications as of now (November 27, 2017). If you have found the EMF-Portal useful and wish to support us, we will be very happy to accept your donation.

DONATION ACCOUNT: Uniklinik RWTH Aachen, IBAN: DE27 3905 0000 0013 0040 15, BIC: AACSDE33, Reference: GB-FM/380454/Arbm

More information →

Home
Medical/biological study (experimental study)

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

Published in: Biomed Environ Sci 2010; 23 (3): 199-207

Aim of study (acc. to author)

To test whether exposure to radiofrequency electromagnetic fields emitted by mobile phone base stations may have effects on salivary alpha-amylase, immunoglobulin A, and cortisol levels in human subjects.
Background/further details: 57 participants (35 females) were randomly allocated to one of three different experimental scenarios (22 participants to scenario 1, 26 to scenario 2, and 9 to scenario 3; for further information see exposure details). In every session saliva samples were taken after 10, 25, and 45 minutes for biochemical analyses.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 900 MHz
Exposure duration: five times 50 minutes (five sessions)
General information
Test persons were divided into three groups and exposed in three different scenarios of five sessions each: Scenario1: low exposure, high exposure, low exposure, medium exposure, low exposure Scenario2: low exposure, medium exposure, low exposure, high exposure, low exposure Scenario3: low exposure, low exposure, low exposure, low exposure, high exposure
Exposure 1
Main characteristics
Frequency 900 MHz
Type
Exposure duration five times 50 minutes (five sessions)
Exposure setup
Exposure source
Distance between exposed object and exposure source 6 m
Setup antenna mounted on the outer wall of the building; further GSM-900 and GSM-1800 base stations in the area; different exposure levels gained by the use of shielding curtains; wall painted with shielding paint except for the exposure area
Parameters
Measurand Value Type Method Mass Remarks
power density 5.2 µW/m² - measured - low exposure
power density 153.6 µW/m² - measured - medium exposure
power density 2,126.8 µW/m² - measured - high exposure
Reference articles
Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated material:
Investigated organ system:
Time of investigation:
  • during exposure

Main outcome of study (acc. to author)

In scenario 3 from session 4 to session 5 (from "low" to "high" exposure), a significant increase of cortisol was detected, while in scenarios 1 and 2 (sessions 2-4), a higher concentration of alpha-amylase was observed as compared to that in scenario 3. Immunoglobulin A concentration was not significantly related to the exposure.
The authors conclude that radiofrequency electromagnetic fields in considerably lower power flux densities than ICNIRP-guidelines may influence certain psychobiological stress markers.
Study character:

Study funded by

  • Land Salzburg Federal Government, Austria
  • Mr. Daniell Porsche, Chairman of the Paracelsus-School at St. Jakob am Thurn, Salzburg, Austria

Related articles

  • Singh K et al. (2016): Effect of electromagnetic radiations from mobile phone base stations on general health and salivary function.
  • Ghoneim FM et al. (2016): Histological and histochemical study of the protective role of rosemary extract against harmful effect of cell phone electromagnetic radiation on the parotid glands.
  • Geronikolou SA et al. (2015): Frequent cellular phone use modifies hypothalamic-pituitary-adrenal axis response to a cellular phone call after mental stress in healthy children and adolescents: A pilot study.
  • Abu Khadra KM et al. (2015): Evaluation of selected biochemical parameters in the saliva of young males using mobile phones.
  • Khalil AM et al. (2014): Assessment of oxidant/antioxidant status in saliva of cell phone users.
  • Hamzany Y et al. (2013): Is human saliva an indicator of the adverse health effects of using mobile phones?
  • Bortkiewicz A et al. (2012): Subjective complaints of people living near mobile phone base stations in Poland.
  • Eskander EF et al. (2011): How does long term exposure to base stations and mobile phones affect human hormone profiles?
  • Breckenkamp J et al. (2010): [Results of a cross-sectional study on the association of electromagnetic fields emitted from mobile phone base stations and health complaints].
  • Augner C et al. (2009): Are people living next to mobile phone base stations more strained? Relationship of health concerns, self-estimated distance to base station, and psychological parameters.
  • Berg-Beckhoff G et al. (2009): Mobile phone base stations and adverse health effects: phase 2 of a cross-sectional study with measured radio frequency electromagnetic fields.
  • Blettner M et al. (2009): Mobile phone base stations and adverse health effects: phase 1 of a population-based, cross-sectional study in Germany.
  • Furubayashi T et al. (2009): Effects of short-term W-CDMA mobile phone base station exposure on women with or without mobile phone related symptoms.
  • Augner C et al. (2009): GSM base stations: short-term effects on well-being.
  • Djeridane Y et al. (2008): Influence of electromagnetic fields emitted by GSM-900 cellular telephones on the circadian patterns of gonadal, adrenal and pituitary hormones in men.
  • Aghdam Shahryar H et al. (2008): Effects of Electromagnetic Fields of Cellular Phone on Cortisol and Testosterone Hormones Rate in Syrian Hamsters (Mesocricetus auratus).
  • Abdel-Rassoul G et al. (2007): Neurobehavioral effects among inhabitants around mobile phone base stations.
  • Hutter HP et al. (2006): Subjective symptoms, sleeping problems, and cognitive performance in subjects living near mobile phone base stations.
  • Schüz J et al. (2006): The "Mainzer EMF-Wachhund": results from a watchdog project on self-reported health complaints attributed to exposure to electromagnetic fields.
  • Santini R et al. (2003): Survey study of people living in the vicinity of cellular phone base stations.
  • Radon K et al. (2001): No effects of pulsed radio frequency electromagnetic fields on melatonin, cortisol, and selected markers of the immune system in man.
  • Mann K et al. (1998): Effects of pulsed high-frequency electromagnetic fields on the neuroendocrine system.
  • de Seze R et al. (1998): GSM radiocellular telephones do not disturb the secretion of antepituitary hormones in humans.
  • Abhold RH et al. (1981): Studies on acute in vivo exposure of rats to 2450-MHz microwave radiation. II. Effects on thyroid and adrenal axes hormones.