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Studies on acute in vivo exposure of rats to 2450-MHz Microwave Radiation. Part II. Effects on thyroid and adrenal axes hormones

Journal Article · · Radiat. Res.; (United States)
DOI:https://doi.org/10.2307/3575634· OSTI ID:5627099
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The effects of 8 hr continuous exposure of rats to 2450-MHz (cw) microwave radiation were studied at incident power densities of 0, 2 and 10 mW/cm/sup 2/. Thyroid axis function, as measured by serum thyroxine (T/sub 4/) and triiodothyronine (T/sub 3/) as well as T/sub 3/ uptake, free thyroxine index, and adjusted-T/sub 4/ values was not altered by the experimental conditions. Adrenal axis activity was also unaffected in rats exposed to 2 mW/cm/sup 2/ microwave radiation for 8 hr. In the 10 mW/cm/sup 2/ group, the serum corticosterone levels were less than in the 0 or 2 mW/cm/sup 2/ groups (7.8 versus 9.9 ..mu..g/dl). The experimental protocol increased serum corticosterone levels (7.0 versus 9.9 ..mu..g/dl for the nonhandled and sham-exposed groups, respectively); however, the corticosterone concentration in the 10 mW/cm/sup 2/ group was similar to that in the untreated (nonhandled) controls (7.8 versus 7.0 ..mu..g/dl). This modified adrenal axis function gives further support to the concept that microwave radiation affects endocrine function.
Research Organization:
National Inst. of Environmental Health Sciences, Research Triangle Part, NC
OSTI ID:
5627099
Journal Information:
Radiat. Res.; (United States), Journal Name: Radiat. Res.; (United States) Vol. 88:3; ISSN RAREA
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.
ADRENAL GLANDS
ADRENAL HORMONES
AMINO ACIDS
ANIMALS
BIOLOGICAL EFFECTS
BODY
CARBOXYLIC ACIDS
CORTICOSTEROIDS
ELECTROMAGNETIC RADIATION
ENDOCRINE GLANDS
GLANDS
HORMONES
HYDROXY ACIDS
HYDROXY COMPOUNDS
KETONES
MAMMALS
MICROWAVE RADIATION
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
ORGANS
PEPTIDE HORMONES
PREGNANES
RADIATIONS
RATS
RODENTS
STEROID HORMONES
STEROIDS
THYROID
THYROID HORMONES
THYRONINE
THYROXINE
VERTEBRATES