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

[携帯電話による全身マイクロ波ばく露とラットの精巣機能] med./bio.

Whole-body microwave exposure emitted by cellular phones and testicular function of rats.

掲載誌: Urol Res 1999; 27 (3): 219-223

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研究目的(著者による)

To investigate the histological changes originating from microwaves emitted by cellular phones.

影響評価項目

ばく露

ばく露 パラメータ
ばく露1: 890–915 MHz
Modulation type: pulsed
ばく露時間: repeated daily exposure for 2 h/day for 1 month

ばく露1

主たる特性
周波数 890–915 MHz
タイプ
  • electromagnetic field
ばく露時間 repeated daily exposure for 2 h/day for 1 month
Modulation
Modulation type pulsed
Repetition frequency 217 Hz
ばく露装置
ばく露の発生源/構造
  • セルラ-電話
Distance between exposed object and exposure source 0.5 cm
ばく露装置の詳細 The cellular phones were placed 0.5 cm under the Plexiglas cages.
Additional information Rats were separated into three groups: sham exposed phone in standby mode phone turned to speech mode for 1 min 3x in 2 h.
パラメータ
測定量 種別 Method Mass 備考
電力 2 W peak - - -
SAR 0.141 W/kg - - - -

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:
  • 脳/腫瘍
  • eyes, liver, heart, lungs, stomach, kidneys, testes, small and large intestines, skin
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)

The decrease of epididymal sperm counts in the speech groups (experimental group, phones were turned to the speech position) was not found to be significant. Differences in terms of normal and abnormal sperm forms were not revealed. Histological changes were especially found in the testes of animals of the speech groups. Seminiferous tubular diameter of rat testes in the standby (cellular phones were in standby position) and speech groups was found to be lower than in the sham exposed group.
Rectal temperatures of animals in the speech group were found to be higher than rectal temperatures of rats in the sham and standby groups. The rectal temperatures of animals before and after irradiation were also found to be significantly higher in the speech group. Thus, the animals are affected by heat generated following microwave exposure.

研究の種別:

研究助成

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