研究のタイプ: 医学/生物学の研究 (observational study)

[老人での就寝中60 Hz磁界ばく露、照明とaMT6sとは無関係] med./bio.

No association of 6-sulfatoxymelatonin with in-bed 60-Hz magnetic field exposure or illumination level among older adults.

掲載誌: Environ Res 2002; 89 (3): 201-209

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研究目的(著者による)

To examine whether there is an association between nocturnal exposure to 60 Hz magnetic fields and 6-sulphatoxy melatonin level in urine of older adults.

詳細情報

In total, 242 subjects (224 female, 16 male) participated in the study (mean age 67.6 years). During one week, the magnetic field levels were measured as close as possible to the subject's head during sleep. Urine was collected by the subjects on two days (approximately 3 days apart) for somewhat longer than 24 hours.

影響評価項目

ばく露

ばく露 パラメータ
ばく露1: 60 Hz
ばく露時間: 1 week during sleep

ばく露1

主たる特性
周波数 60 Hz
タイプ
  • magnetic field
ばく露時間 1 week during sleep
ばく露装置
ばく露の発生源/構造
  • domestic appliances, inhouse wiring
パラメータ
測定量 種別 Method Mass 備考
磁束密度 6.31 µT maximum 測定値 - in bed/under pillow
磁束密度 100 nT mean 測定値 - in bed/under pillow

ばく露を受けた生物:

方法 影響評価項目/測定パラメータ/方法

研究対象とした生物試料:
研究対象とした臓器系:
調査の時期:
  • ばく露前
  • ばく露中
  • ばく露後

研究の主なアウトカム(著者による)

No association between the magnetic field exposure and the urinary level of 6-sulfatoxymelatonin was found.
The authors conclude, that the data suggest no influence of nocturnal 60 Hz magnetic field exposure on 6-sulfatoxymelatonin excretion in older adults.

研究の種別:

研究助成

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