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

[高周波電磁界ばく露下のウシでのACTHに対する反応] med./bio.

[Response to ACTH of cows under exposure to high-frequency electromagnetic fields]

著者: Wenzel C, Wohr AC, Schönreiter-Fischer S, Klempt M, Unshelm J
掲載誌: Tierarztl Prax Ausg G Grosstiere Nutztiere 2002; 30: 144-147
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この研究は、GSM無線周波電磁界（900 MHz–1.8 GHz）のばく露が想定されたバイエルン州の17の牧場で、乳牛の唾液中コルチゾール濃度を測定した。各牧場でばく露レベルを測定し、低ばく露牧場と高ばく露牧場（140-160 mV/m）を区別した。その結果、唾液サンプルを用いて、各乳牛の4時間にわたるコルチゾールプロファイルが測定された；高ばく露牧場の乳牛は、低ばく露牧場の乳牛に比べ、コルチゾール濃度が高く、かつ持続していた、と報告している。［ドイツ語論文である］

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研究目的(acc. to editor)

Cows salivary cortisol levels were measured on 17 dairy farms in Bavaria under exposure to radiofrequency electromagnetic fields of mobile phone networks.

詳細情報

Data are intended to give an impression of the stress situation of the animals (via cortisol secretion). The investigation differentiated between low-exposure and high-exposure farms. Five cows per farm were treated intravenously with adrenocorticotropic hormone. By means of saliva samples a cortisol profile over four hours was then determined.
Under chronic stress situation the adrenal cortex activity is increased. Therefore, the organism response to a exogenous stressor (stimulated via ACTH administration) by an increase of the peripheral cortisol level.

影響評価項目

ばく露

ばく露 パラメータ
ばく露1: 900 MHz–1.8 GHz
Modulation type: pulsed
ばく露時間: continuous

ばく露1

主たる特性
周波数 900 MHz–1.8 GHz
タイプ
  • electromagnetic field
ばく露時間 continuous
Modulation
Modulation type pulsed
ばく露装置
ばく露の発生源／構造
Additional information 17 Bavarian dairy farms were investigated. The cows were divided into 4 groups: Group A and B served as exposure groups and C and D as control groups. Group A was under the highest exposure conditions whereas group D was under the lowest.
パラメータ
測定量 値 種別 Method Mass 備考
電界強度 160 mV/m maximum 測定値 - -
Additional parameter details

The highest exposure levels measured in the stables were 140-160 mV/m.

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:
  • ばく露中
  • ばく露後

研究の主なアウトカム（著者による）

Highly exposed cows had a higher and more sustained cortisol level than animals with exposure of a lower level. Therefore it is concluded that cows with prolonged exposure to radiofrequency electromagnetic fields are chronically stressed. This could lead to a higher susceptibility to diseases.

研究の種別:

研究助成

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