Influence of 2. 45-GHz CW microwave radiation on spontaneously beating rat atria

Journal Article · Fri Jan 01 04:00:00 EST 1982 · Bioelectromagnetics (N.Y.); (United States)

DOI:https://doi.org/10.1002/bem.2250030206· OSTI ID:6578034

Galvin, M J; Dutton, M S; McRee, D I

The chronotropic and inotropic effects of 2.45-GHz continuous wave (CW) microwave radiation were investigated in the isolated spontaneously beating rat atria. Isolated atria were placed in specially designed tubes inserted into a waveguide exposure system. The atria were then irradiated for a period of 30 min, followed by a 30-min recovery period. The control atria were prepared simultaneously and sham exposed. Experiments were conducted at two temperatures, 22 and 37 degrees C, and two specific absorption rates, 2 mW/g and 10 mW/g. At both temperatures the rate of atrial contraction was not altered by a 30-min exposure at either 2 or 10 mW/g. The average rate (beats per min) was approximately 100 for both the control and exposed atria at 22 degrees C and 215 beats per min for both the control and exposed atria at 37 degrees C. In addition, no inotropic effects on the spontaneously beating atria were noted at any exposure level. These data suggest that 2.45-GHz CW microwave radiation at these intensities has no overt effect on these variables in isolated rat atria.

• Research Organization: Laboratory of Environmental Biophysics, National Institute of Environmental Health Sciences, Research Triangle Park, NC
• OSTI ID: 6578034
• Journal Information: Bioelectromagnetics (N.Y.); (United States), Journal Name: Bioelectromagnetics (N.Y.); (United States) Vol. 3:2; ISSN BLCTD
• Country of Publication: United States
• Language: English

Related Subjects

560400* -- Other Environmental Pollutant Effects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
BIOLOGICAL EFFECTS
BODY
CARDIOVASCULAR SYSTEM
ELECTROMAGNETIC RADIATION
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
HEART
MAMMALS
MICROWAVE RADIATION
ORGANS
RADIATIONS
RATS
RODENTS
VERTEBRATES