研究のタイプ: 治療に関する研究 (experimental study)

[低出力ミリ波放射はヒトのケラチノサイトに有害な影響はない] med./bio.

Low power millimeter wave irradiation exerts no harmful effect on human keratinocytes in vitro.

掲載誌: Bioelectromagnetics 2003; 24 (3): 165-173

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研究目的(著者による)

In order to learn more about potential risk factors of low power millimeter waves, the in vitro effect of millimeter wave irradiation on epidermal keratinocytes by measuring chemokine release, heat shock protein production, determining cell viability, and gap junctional intercellular communication were studied.

影響評価項目

ばく露

ばく露 パラメータ
ばく露1: 61.2 GHz
Modulation type: CW
ばく露時間: 30 or 60 min
ばく露2: 42.25 GHz
Modulation type: CW
ばく露時間: 30 or 60 min

ばく露1

主たる特性
周波数 61.2 GHz
タイプ
  • electromagnetic field
ばく露時間 30 or 60 min
Additional information ± 2.1 GHz
Modulation
Modulation type CW
ばく露装置
ばく露の発生源/構造
  • millimetr wave generator
Additional information Control plates with keratinocytes were either kept at 37°C for 60 min (negative control), or incubated at 43°C for the same period of time (positive control)
パラメータ
測定量 種別 Method Mass 備考
電力密度 29 mW/cm² - 計算値 - ± 2 mW/cm²
SAR 770 W/kg - 計算値 - ± 42 W/kg

ばく露2

主たる特性
周波数 42.25 GHz
タイプ
  • electromagnetic field
ばく露時間 30 or 60 min
Modulation
Modulation type CW
ばく露装置
ばく露の発生源/構造
  • generator + Q-band circulator + Klystron
ばく露装置の詳細 2.6 mm x 5.2 mm waveguide centered over the bottom of the culture dish
パラメータ
測定量 種別 Method Mass 備考
電力密度 1.67 W/cm² - - - -
SAR 37 W/kg - 計算値 - +/- 3 W/kg

Reference articles

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:
調査の時期:
  • ばく露後

研究の主なアウトカム(著者による)

No harmful effect of low power millimeter waves irradiation on both keratinocyte function and structure in vitro was detected. The data support the contention that low power millimeter waves irradiation in clinical practice is safe and without risk of induction of topical inflammatory reactions or cell damage in epidermal keratinocytes.

研究の種別:

研究助成

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