Effect of mobile usage on serum melatonin levels among medical students med./bio.

Aim of study (acc. to author)

Background/further details

Endpoint

• endocrine changes: melatonin concentration in the blood

Exposure

• • mobile communications
  • mobile phone
  • GSM

Extended view Compact view

Methods Endpoint/measurement parameters/methodology

• endocrine changes: melatonin concentration in the blood (ELISA)
• questionnaire on mobile phone usage (17 questions, e.g. duration of usage, time of day of maximum usage, keeping below the pillow)

Main outcome of study (acc. to author)

Study funded by

• Swami Rama Himalayan University, India

Related articles

• Cao H et al. (2015): Circadian Rhythmicity of Antioxidant Markers in Rats Exposed to 1.8 GHz Radiofrequency Fields
• Jin YB et al. (2013): Effects of simultaneous combined exposure to CDMA and WCDMA electromagnetic fields on serum hormone levels in rats
• Lerchl A et al. (2008): Effects of mobile phone electromagnetic fields at nonthermal SAR values on melatonin and body weight of Djungarian hamsters (Phodopus sungorus)
• Wood AW et al. (2006): Does evening exposure to mobile phone radiation affect subsequent melatonin production?
• Sukhotina I et al. (2006): 1800 MHz electromagnetic field effects on melatonin release from isolated pineal glands
• Hata K et al. (2005): Short term exposure to 1439 MHz pulsed TDMA field does not alter melatonin synthesis in rats
• Koyu A et al. (2005): No effects of 900 MHz and 1800 MHz electromagnetic field emitted from cellular phone on nocturnal serum melatonin levels in rats
• Bakos J et al. (2003): GSM modulated radiofrequency radiation does not affect 6-sulfatoxymelatonin excretion of rats
• Jarupat S et al. (2003): Effects of the 1900 MHz electromagnetic field emitted from cellular phone on nocturnal melatonin secretion
• Burch JB et al. (2002): Melatonin metabolite excretion among cellular telephone users
• Bortkiewicz A et al. (2002): The excretion of 6-hydroxymelatonin sulfate in healthy young men exposed to electromagnetic fields emitted by cellular phone - An experimental study
• de Seze R et al. (2001): Evaluation of the Health Impact of the Radio-Frequency Fields from Mobile Telephones
• 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
• Bastide M et al. (2001): Toxicologic study of electromagnetic radiation emitted by television and video display screens and cellular telephones on chickens and mice
• de Seze R et al. (1999): Evaluation in humans of the effects of radiocellular telephones on the circadian patterns of melatonin secretion, a chronobiological rhythm marker
• Heikkinen P et al. (1999): Chronic exposure to 50-Hz magnetic fields or 900-MHz electromagnetic fields does not alter nocturnal 6-hydroxymelatonin sulfate secretion in CBA/S mice
• Vollrath L et al. (1997): No short-term effects of high-frequency electromagnetic fields on the mammalian pineal gland