You are here:
EFFECTS OF CONTINUOUS-WAVE, PULSED, AND SINUSOIDAL-AMPLITUDE-MODULATED MICROWAVES ON BRAIN ENERGY METABOLISM
Citation:
Sanders, A., W. Joines, AND J. Allis. EFFECTS OF CONTINUOUS-WAVE, PULSED, AND SINUSOIDAL-AMPLITUDE-MODULATED MICROWAVES ON BRAIN ENERGY METABOLISM. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-85/061 (NTIS PB85219806), 1985.
Description:
A comparison of the effects of continuous wave, sinusoidal-amplitude modulated, and pulsed square-wave-modulated 591-MHz microwave exposures on brain energy metabolism was made in male Sprague Dawley rats (175-225g). Brain NADH fluorescence, adensine triphosphate (ATP) concentration and creatine phosphate (CP) concentration were determined as a function of modulation frequency. Brain temperatures of animals were maintained between -0.1 and -0.4C from the pre-exposure temperature when subjected to as much as 20 mW/sq. cm. (average power) CW, pulsed or sinusoidalamplitude-modulated 591-MHz radiation for 5 minutes. Sinusoidal-amplitude-modulated exposures at 16 to 24 Hz showed a trend toward preferential modulation frequency response in inducing an increase in brain NADH fluorescence. The pulse-modulated and sinusoidal-amplitude-modulated (16 Hz) microwaves were not significantly different from CW exposures in inducing increased brain NADH fluorescence and decreased ATP and CP concentrations.