The measurements were repeated five times for each experimental setting (frequency and intensity).
Exposure duration: continuous for 240 s
|electric field strength||0.02135 V/m||-||calculated||-||Power density: 0.0000012 W/m²|
|electric field strength||0.06754 V/m||-||calculated||-||Power density: 0.000012 W/m²|
|electric field strength||0.21358 V/m||-||calculated||-||Power density: 0.00012 W/m²|
|electric field strength||0.675 V/m||-||calculated||-||Power density: 0.0012 W/m²|
|electric field strength||2.136 V/m||-||calculated||-||Power density: 0.012 W/m²|
The data showed that L-lactate dehydrogenase enzyme activity selectively increased only by irradiation at the particular frequencies of 500 MHz (electric field: 0.021 V/m - 2.1 V/m) and 900 MHz (electric field: 0.021 - 0.21 V/m) and it decreased at 900 MHz when the electric field was stronger than 0.67 V/m.
The authors conclude that L-lactate dehydrogenase enzyme activity can be modulated by specific frequencies of low power microwave irradiation. This finding can serve to support the hypothesis that low intensity microwaves can induce non-thermal effects in biomolecules.