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

[ラットの眼組織および血液の酸化ストレスパラメータに対する第3世代携帯電話の電磁放射の影響] med./bio.

Effects of third generation mobile phone-emitted electromagnetic radiation on oxidative stress parameters in eye tissue and blood of rats

掲載誌: Cutan Ocul Toxicol 2012; 31 (2): 89-94

この研究は、第3世代(3G)携帯電話から放射される電磁放射(EMR)が、ラット眼球組織および血液の抗酸化および酸化ストレスパラメータに及ぼす影響を調べた。18匹のWistarアルビノラットをランダムにばく露群と対照群に分けた(各n = 9)。ばく露群は、標準化された1日使用量の3G携帯電話電磁放射を20日間継続して受けた。ばく露期間終了後、眼球組織グルタチオンペルオキシダーゼGSH-Px)とカタラーゼ(CAT)のレベル、血液中のマロンジアルデヒドMDA)とGSHレベルを測定した。その結果、眼球組織のGSH-PxとCATレベル、また血中のMDAとGSHレベルにおいて、ばく露群と擬似ばく露群の間に有意差は見られなかった、と報告している。

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研究目的(著者による)

The effects of electromagnetic fields emitted by a mobile phone on oxidative stress parameters in eye tissue and blood of rats should be investigated.

詳細情報

Rats were randomly divided into a control group and an exposure group (n=9 per group).

影響評価項目

ばく露

ばく露 パラメータ
ばく露1: 1.9–2.2 GHz
ばく露時間: continuous for 40 min/day from the 2nd to the 21st day
exposure group
  • SAR: 0.5 W/kg
ばく露2: 1.9–2.2 GHz
ばく露時間: continuous for 40 min/day from the 2nd to the 21st day
control group
-

ばく露1

主たる特性
周波数 1.9–2.2 GHz
タイプ
  • electromagnetic field
ばく露時間 continuous for 40 min/day from the 2nd to the 21st day
Additional information exposure group
ばく露装置
ばく露の発生源/構造
  • セルラ-電話
  • Nokia N-70 mobile phone with GPRS and EGPRS in speaking mode
ばく露装置の詳細 during exposure, rats were kept in two 40 cm x 30 cm x 15 cm polypropylene cages without wood-chip bedding, placed 10 m apart; under each cage a recorder and a mobile phone was placed: for the first 20 min recorder B was turned off, recorder A was turned on and the recorded speech transmitted via phone A to phone B; during the second 20 min recorder A was turned off, recorder B was turned on and the recorded speech was transmitted via phone B to phone A; except from exposure, mobile phone was kept in standby mode for the rest of the day
Additional information batteries were charged continuously
パラメータ
測定量 種別 Method Mass 備考
SAR 0.5 W/kg - - - -

ばく露2

主たる特性
周波数 1.9–2.2 GHz
タイプ
  • electromagnetic field
ばく露時間 continuous for 40 min/day from the 2nd to the 21st day
Additional information control group
ばく露装置
ばく露の発生源/構造
  • セルラ-電話
  • Nokia N-70 mobile phone with GPRS and EGPRS in standby mode
ばく露装置の詳細 rats were kept in two 40 cm x 30 cm x 15 cm polypropylene cages without wood-chip bedding, placed 10 m apart; under each cage a recorder and a mobile phone was placed: for the first 20 min recorder B was turned off, recorder A was turned on; during the second 20 min recorder A was turned off, recorder B was turned on; mobile phones in standby mode; no speech transmitted; batteries were charged continuously
Additional information batteries were charged continuously
パラメータ

No parameters are specified for this exposure.

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 significant differences between the control group and the exposure group were observed.
The authors conclude that electromagnetic fields emitted by a mobile phone do not induce oxidative stress in the eye tissue and blood of rats.

研究の種別:

研究助成

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