Acute low-level microwave exposure and central cholinergic activity: studies on irradiation parameters
Journal Article
·
· Bioelectromagnetics (N.Y.); (United States)
Sodium-dependent high-affinity choline uptake was measured in the striatum, frontal cortex, hippocampus, and hypothalamus of rats after acute exposure (45 min) to pulsed (2 microseconds, 500 pps) or continuous-wave 2,450-MHz microwaves in cylindrical waveguides or miniature anechoic chambers. In all exposure conditions, the average whole-body specific absorption rate was at 0.6 W/kg. Decrease in choline uptake was observed in the frontal cortex after microwave exposure in all of the above irradiation conditions. Regardless of the exposure system used, hippocampal choline uptake was decreased after exposure to pulsed but not continuous-wave microwaves. Striatal choline uptake was decreased after exposure to either pulsed or continuous-wave microwaves in the miniature anechoic chamber. No significant change in hypothalamic choline uptake was observed under any of the exposure conditions studied. We conclude that depending on the parameters of the radiation, microwaves can elicit specific and generalized biological effects.
- Research Organization:
- Univ. of Washington School of Medicine, Seattle (USA)
- OSTI ID:
- 6596072
- Journal Information:
- Bioelectromagnetics (N.Y.); (United States), Journal Name: Bioelectromagnetics (N.Y.); (United States) Vol. 9:4; ISSN BLCTD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560400* -- Other Environmental Pollutant Effects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACUTE EXPOSURE
ALCOHOLS
ALKALI METALS
AMINES
AMMONIUM COMPOUNDS
ANIMALS
BIOLOGICAL EFFECTS
BODY
BRAIN
CENTRAL NERVOUS SYSTEM
CHOLINE
CHRONIC EXPOSURE
DRUGS
ELECTROMAGNETIC RADIATION
ELEMENTS
HYDROXY COMPOUNDS
LIPOTROPIC FACTORS
MAMMALS
METALS
MICROWAVE RADIATION
NERVOUS SYSTEM
ORGANIC COMPOUNDS
ORGANS
QUATERNARY COMPOUNDS
RADIATIONS
RATS
RODENTS
SODIUM
UPTAKE
VERTEBRATES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACUTE EXPOSURE
ALCOHOLS
ALKALI METALS
AMINES
AMMONIUM COMPOUNDS
ANIMALS
BIOLOGICAL EFFECTS
BODY
BRAIN
CENTRAL NERVOUS SYSTEM
CHOLINE
CHRONIC EXPOSURE
DRUGS
ELECTROMAGNETIC RADIATION
ELEMENTS
HYDROXY COMPOUNDS
LIPOTROPIC FACTORS
MAMMALS
METALS
MICROWAVE RADIATION
NERVOUS SYSTEM
ORGANIC COMPOUNDS
ORGANS
QUATERNARY COMPOUNDS
RADIATIONS
RATS
RODENTS
SODIUM
UPTAKE
VERTEBRATES