THERMAL AND ENDOCRINOLOGICAL EFFECTS OF MICROWAVE EXPOSURES ON RHESUS MONKEYS
Authors not listed
Adult male rhesus monkeys exposed to 1.29 GHz pulsed microwave radiation for 8 hours at 28 and 38 mW/cm² showed rectal temperature increases of 0.6°C and 1.5°C but no changes in growth hormone, cortisol, or thyroxine levels.
Plain English Summary
Researchers studied body temperature and hormone levels in chair-restrained adult male rhesus monkeys before, during, and after an 8-hour exposure to 1.29 GHz pulsed microwave radiation at 28 and 38 mW/cm². Rectal temperature increased by 0.6°C at 28 mW/cm² and 1.5°C at 38 mW/cm² compared to sham exposures, returning to baseline within 1-2 hours after exposure ended. No changes in circulating growth hormone, cortisol, or thyroxine levels were observed at any time during or after exposure despite the temperature rises.
Why This Matters
Each of three monkeys was exposed three times to each power density with an equal number of sham sessions. Blood was drawn hourly through indwelling catheters and assayed for growth hormone and thyroxine by radioimmunoassay and for cortisol by competitive protein binding. The hormone patterns followed normal circadian rhythms for rhesus monkeys. The authors noted that unlike rats, which show marked hormone changes with similar temperature elevations, rhesus monkeys showed no hormonal response, suggesting greater neuroendocrine stability.
Show BibTeX
@article{thermal_and_endocrinological_effects_of_microwave_exposures_on_rhesus_monkeys_g5459,
author = {Unknown},
title = {THERMAL AND ENDOCRINOLOGICAL EFFECTS OF MICROWAVE EXPOSURES ON RHESUS MONKEYS},
year = {n.d.},
}