この研究は、マウスを用いた実験で、出生前および新生仔期に超低周波電磁界（ELF-EMF）のばく露を受けたマウスにおいて、運動能力への影響を調べた。マウスを3群に分けた。すなわち、出生後ばく露群（母マウスと共に新生仔マウスを出生後7日間ばく露）、出生前ばく露群（母マウスを妊娠の最後の7日間ばく露）、対照群である。回転ホイールを用いたマウスの運動協調性とバランスの試験は、7日間ばく露終了の5日後から生後12-13週まで実施した。その結果、新生仔期の出生後ばく露群では、対照群に比べ、
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To investigate the effects of extremely low frequency magnetic fields on the motor coordination of prenatally and neonatally exposed mice.
Mice were divided into three groups (n=7-18 per group): 1.) exposure of dams and offspring for 7 days after birth, 2.) exposure of dams during the last 7 days of pregnancy and 3.) control group. Motor coordination experiments were performed with the offspring in the age of 12 to 13 weeks.
| ばく露 | パラメータ |
|---|---|
|
ばく露1:
50 Hz
ばく露時間:
continuous for 7 days
|
|
| 周波数 | 50 Hz |
|---|---|
| タイプ |
|
| 波形 |
|
| ばく露時間 | continuous for 7 days |
| ばく露の発生源／構造 | |
|---|---|
| ばく露装置の詳細 | each of the coils was 40 cm in diameter, had 154 turns, and the coils were separated at a distance of 20 cm |
| Sham exposure | A sham exposure was conducted. |
| Additional information | magnetic force lines were parallel to the horizontal component of the local geomagnetic field |
| 測定量 | 値 | 種別 | Method | Mass | 備考 |
|---|---|---|---|---|---|
| 磁束密度 | 1 mT | spatial average | 測定値 | - | - |
The motor coordination of mice that were neonatally exposed to an extremely low frequency magnetic field was significantly impaired compared to the control group. However, no significant difference was observed between the prenatally exposed group and the control group.
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