この研究は、携帯電話電磁界の口内組織、特に歯への影響に注目した。ウイスターアルビノ雄ラット(n=31)をGSM群(n=14)、擬似GSM群(n=7)、ケージコントロール群(n=10)に分けた。GSM群、擬似GSM群は、個体毎に円筒プラスティック容器に頭から入れ、頭を中心に向けて容器を放射状に並べ、中心部にGSM携帯電話を置いた。GSM変調900MHz電磁界への真のばく露または擬似ばく露を、1日2時間、10ヶ月間実施した。ばく露終了後、歯の微量元素を原子吸光分析法などで測定した。その結果、マンガンおよび亜鉛の含有量の変化がGSM群で有意であった;GSM群では、他の2つの群に比べ、カルシウムおよびリンの含有量が有意に高かった、と報告している。
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The effects of a chronic exposure of the head of rats to a 900 MHz electromagnetic field on the content of some trace elements in teeth should be investigated.
The authors examined teeth because of their close proximity to a cell phone during a call. 31 rats were divided into the following three groups: 1) exposure (n=14), 2) sham exposure (n=7) and 3) cage control (n=10). Subsequent to the exposure, all rats were anesthetized and teeth were removed and examined.
周波数 | 900 MHz |
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タイプ |
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ばく露時間 | repeated daily exposure of 2 h for 10 months |
ばく露の発生源/構造 |
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Distance between exposed object and exposure source | 1.5 cm |
チャンバの詳細 | rats were placed in a Plexiglas tube carousel with single chambers for each rat |
ばく露装置の詳細 | rats were oriented headwards to the antenna of the GSM generator in the middle |
Sham exposure | A sham exposure was conducted. |
The concentrations of calcium and phosphorus did not show any significant differences in the exposure group compared to sham exposure and cage control, whereas the concentration of magnesium was significantly reduced and the concentration of zinc was significantly increased. No significant differences were observed between sham exposure and cage control.
The authors conclude that a chronic exposure of the head of rats to a 900 MHz electromagnetic field can change the content of some trace elements in teeth and that further studies should investigate this topic.
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