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 ;
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB85-219806 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
11p |
Abstract |
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. |