Relation between residential magnetic fields, light-at-night, and nocturnal urine melatonin levels in women: Volume 1 -- Background and purpose, methods, results, discussion. Final report
Technical Report
·
OSTI ID:355009
- Fred Hutchinson Cancer Research Center, Seattle, WA (United States)
Scientists have postulated a link between exposure to magnetic fields and reduced blood melatonin levels. This EPRI study was designed to supplement a National Cancer Institute study (NCI-BC) of magnetic fields, light-at-night, and the risk of breast cancer. By expanding the exposure assessment of the NCI-BC and collecting data on urine melatonin levels, this project provides new insight into a possible magnetic field-melatonin link. It has been proposed that exposure to 60-Hz (power frequency) magnetic fields may increase the risk of breast cancer by suppressing the normal nocturnal rise in melatonin production in the pineal gland. It remains unknown whether the human pineal gland is reproducibly responsive or sensitive to magnetic field exposure, and whether such exposures could alter elements of the endogenous hormonal environment in women that might be important in the etiology of breast cancer. The objective of this research was to investigate whether exposure to power-frequency magnetic fields and/or light-at-night is associated with levels of the primary urinary melatonin metabolite in women without a history of breast cancer.
- Research Organization:
- Electric Power Research Inst., Palo Alto, CA (United States); Fred Hutchinson Cancer Research Center, Seattle, WA (United States)
- Sponsoring Organization:
- Electric Power Research Inst., Palo Alto, CA (United States)
- OSTI ID:
- 355009
- Report Number(s):
- EPRI-TR--107242-V1
- Country of Publication:
- United States
- Language:
- English
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