この研究は、50Hz、0.5mTの超低周波磁界への48時間のばく露が、異なる発達段階のショウジョウバエについて30分間記録した運動活性を変化させるかどうかを調べた。その結果、全ての実験群のハエにおいて、移動距離および機動性に有意差が認められた。どの発達段階にばく露されたかにかかわらず、ELF磁界はショウジョウバエの成虫の運動活性を低下させた。
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The effects of exposure of Drosophila subobscura to a 50 Hz magnetic field at different developmental stages on motor activity should be investigated.
Male and female Drosophila subobscura were exposed either as larvae (group 1, egg-first larval stage, n=45/sex) or as just eclosed adults (group 2, n=75/sex). In addition, a cage control group and a sham exposure group were used for each exposure group. Since no differences were observed between these, they were pooled for analysis in one control group (eggs: n=45/sex, adults: n=75/sex).
ばく露 | パラメータ |
---|---|
ばく露1:
50 Hz
ばく露時間:
continuous for 48 h
|
|
周波数 | 50 Hz |
---|---|
タイプ |
|
ばく露時間 | continuous for 48 h |
測定量 | 値 | 種別 | Method | Mass | 備考 |
---|---|---|---|---|---|
磁束密度 | 0.5 mT | - | 測定値 | - | ± 0.01 mT |
Both parameters of motor activity, distance travelled and mobility time, were significantly reduced in exposed male and female Drosophila subobscura larvae (group 1) and just eclosed adults (group 2) compared to the respective control groups.
The authors conclude that exposure of Drosophila subobscura to a 50 Hz-magnetic field at different developmental stages might affect motor activity.
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