この研究は、1日10時間4.8 Mbpsの通信速度でファイルをアップロードさせ続けたスマートフォンのWi-Fi信号下で5日間培養した脂肪由来幹細胞（ASCs）を2つの対照群（37および39℃で5日間培養）と比較した。その結果、37℃群に比べ、Wi-Fi群および39℃群で細胞増殖速度が高まった；アポトーシスアッセイ、フローサイトメトリ分析、増殖因子濃度には3つの群で顕著な差異がなかった､と報告している。
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The effects of exposure of human adipose derived stem cells to a 2.4 GHz electromagnetic field (WiFi) on cell proliferation, apoptosis and differentiation should be investigated.
Cells were divided into three groups: 1) exposure to the 2.4 GHz electromagnetic field, 2) control group incubated at 37°C, 3) control group incubated at 39°C. Two control groups were used because in a preliminary test a temperature rise of about 2°C was measured in the exposed cell culture. Thus, the 39°C control group should account for possible thermal effects.
| 周波数 | 2.4 GHz |
|---|---|
| タイプ |
|
| ばく露時間 | continuous for 10 hours/day for 5 days |
| Additional information | WiFi |
| ばく露の発生源／構造 |
|
|---|---|
| Distance between exposed object and exposure source | 2 cm |
| チャンバの詳細 | culture plates in a CO2 incubator |
| ばく露装置の詳細 | cells were incubated under a smartphone connected to a WiFi local area network (IEEE 802.11 g); the smartphone worked actively, uploading files at 600-KB/s or 4.8 Mbps (remark EMF-Portal: contradictory specifications) speed to a laptop connected to a wireless router; temperature in incubator was maintained at 37°C and CO2 5% |
| Additional information | (remark EMF-Portal: it was not stated whether other potential EMF sources of the smartphone (e.g. GSM, Bluetooth) or MF of the incubator were deactivated during exposure) |
Cell proliferation was significantly increased in the exposure group and in the 39°C control group compared to the 37°C control group.
All other parameters did not show any significant differences between the groups.
The authors conclude that exposure of human adipose derived stem cells to a 2.4 GHz electromagnetic field (WiFi) has no effects on cell proliferation, apoptosis and differentiation apart from thermal effects.
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