Sun Wenjun J, Mogadam Mehri Kaviani, Sommarin Marianne, Nittby Henrietta, Salford Leif G, Persson Bertil R R, Eberhardt Jacob L
Bioelectromagnetics Lab, Zhejiang University School of Medicine, Hangzhou, China.
Bioelectromagnetics. 2012 Oct;33(7):535-42. doi: 10.1002/bem.21726. Epub 2012 Apr 9.
The question whether very weak, low frequency magnetic fields can affect biological matter is still under debate. The theoretical possibility of such an interaction is often questioned and the site of interaction in the cell is unknown. In the present study, the influence of extremely weak 60 Hz magnetic fields on the transport of Ca(2+) was studied in a biological system consisting of highly purified plasma membrane vesicles. We tested a newly proposed quantum mechanical model postulates that polarization of hydrogen nuclei can elicit a biological effect. Vesicles were exposed for half an hour at 32 °C and the calcium efflux was studied using radioactive (45) Ca(2+) as a tracer. A static magnetic field of 26 µT and time-varying magnetic fields with a frequency of 60 Hz and amplitudes between 0.6 and 6.3 µT were used. The predictions of the model, proposed by Lednev, that at a frequency of 60 Hz the biological effect under investigation would significantly be altered at the amplitudes of 1.3 and 3.9 µT could not be confirmed.
极弱的低频磁场是否会影响生物物质这一问题仍在争论之中。这种相互作用的理论可能性常常受到质疑，而且细胞内的相互作用位点也尚不清楚。在本研究中，我们在一个由高度纯化的质膜囊泡组成的生物系统中，研究了极弱的60赫兹磁场对钙离子转运的影响。我们测试了一个新提出的量子力学模型，该模型假定氢原子核的极化能够引发生物效应。囊泡在32°C下暴露半小时，并用放射性的45Ca2+作为示踪剂研究钙离子外流情况。使用了一个26μT的静磁场以及频率为60赫兹、幅度在0.6至6.3μT之间的时变磁场。由列德涅夫提出的模型预测，在60赫兹频率下，所研究的生物效应在幅度为1.3和3.9μT时会显著改变，但这一预测未能得到证实。
