In some previous in vitro experiments it was found that the calcium efflux in chicken brain tissue could be altered by defined ranges of frequency-, modulation-, and power density -dependent radiofrequency exposure. These are the so called power density windows.
So the purpose of this study was 1) to confirm earlier data indicating that modulated RF fields exhibit multiple power density windows capable to alter calcium efflux of chicken brain tissue, 2) to extend the power density range in search of possible additional power density windows, and 3) and to develop a speculative mechanism of action.
Modulation type: AM
Exposure duration: continuous for 20 min
|Modulation frequency||16 Hz|
|power density||7.5 W/m²||minimum||measured||-||e: 1.75 mW/cm², 2.3 mW/cm², 3.85 mW/cm², 4.5 mW/cm², 5.57 mW/cm², 5.85 mW/cm², 6.82 mW/cm², 7.08 mW/cm², 7.65 mW/cm², 7.77 mW/cm², 8.19 mW/cm², 8.66 mW/cm², 8.82 mW/cm², 10.6 mW/cm² and 14.7 mW/cm²|
Earlier findings of two power density windows between 0.37 to 4.50 mW/cm2, leading to an increased calcium efflux, could be reinforced by the data obtained in this study. Furthermore an enhanced calcium efflux at 1.75, 3.85, 5.57, 6.82, 7.65, 7.77, and 8.82 mW/cm2 was observed in this study.
In brief, the speculative mechanism of action is proposed as a field-induced change e.g. at the cell membrane.