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Main Title Effects of Continuous-Wave, Pulsed, and Sinusoidal-Amplitude-Modulated Microwaves on Brain Energy Metabolism.
Author Sanders, A. P. ; Joines, W. T. ; Allis, J. W. ;
CORP Author Health Effects Research Lab., Research Triangle Park, NC. ;Duke Univ., Durham, NC.
Year Published 1985
Report Number EPA/600/J-85/061;
Stock Number PB85-219806
Additional Subjects Microwaves ; Radiation effects ; Exposure ; Metabolism ; Brain ; Energy ; Rats ; Laboratory animals ; Reprints ;
Library Call Number Additional Info Location Last
NTIS  PB85-219806 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 11p
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.